Merge branch 'development' into 'master'

Merge branch 'development' into 'master'

Merge preparation for  Danielle

This adds the following features:
 * Add accounting for additional consumable materials (#5)
 * Add cost field to pit stop (#4)
 * Make last pit stop editable / deletable (#3)

See merge request !19

Dockerfile

@@ -1,12 +1,14 @@
 FROM debian8_python3
 
-COPY app/requirements.txt /requirements.txt
+COPY requirements.txt /requirements.txt
 RUN pip3 install -r /requirements.txt; \
     mkdir /data
 
 ADD app /app
+ADD main.py /main.py
+ADD config.py /config.py
 
 VOLUME ["/data"]
 VOLUME ["/app/config]
 EXPOSE 5000
-ENTRYPOINT python3 /app/main.py
+ENTRYPOINT python3 /main.py

README.md

@@ -14,6 +14,11 @@ operation.
 ## start database
 `docker run --name pitstops_db -e MYSQL_ROOT_PASSWORD=$SOMESECUREPASSWORD$ -e MYSQL_DATABASE=pitstops -d mysql:latest`
 
+## Database migrations
+### From *Cathrine* to *Master*:
+
+`ALTER TABLE pitstop ADD COLUMN costs DECIMAL(5,2) NOT NULL DEFAULT 0.0 AFTER vehicle_id;`
+
 ## run in development
 
 Include the development version of the code as volume, so the app gets
@@ -21,8 +26,7 @@ reloaded automatically. The sqlite file will be stored in *tmp* so it
 can be inspected with tools like *sqlite3*. The switch *DEBUG* enables
 debugging during development.
 
-`docker run --rm --name rollerverbrauch -ti -v $PWD/app:/app -v $PWD/../rollerverbrauch_config:/app/config -v /tmp/pitstops/:/data -e DEBUG=True -p 5000:5000 rollerverbrauch`
-
+`docker run --rm --name rollerverbrauch -ti -v $PWD/app:/app --link pitstops_db:database -p 5000:5000 -e SECURITY_PASSWORD_SALT=XXX -e SECRET_KEY=XXX -e MAIL_SERVER=XXX -e MAIL_USERNAME=XXX -e MAIL_PASSWORD=XXX rollerverbrauch`
 ## run in production
 `docker run --name pitstops -d -v /data/pitstops/:/data -v /configs/pitstops/:/app/config -p 80:5000 rollerverbrauch`
 

app/__init__.py

@@ -0,0 +1,486 @@
+from datetime import date
+
+from flask import Flask
+from flask import redirect, g
+from flask import render_template
+from flask import url_for
+from flask_mail import Mail
+from flask_security import Security, SQLAlchemyUserDatastore, \
+    login_required, roles_required, user_registered
+from flask_security.core import current_user
+from flask_security.forms import LoginForm
+from flask_sqlalchemy import SQLAlchemy
+import os
+from config import config
+from sqlalchemy.exc import IntegrityError
+from flask.ext.security.forms import LoginForm
+
+from .forms import \
+    CreatePitstopForm, \
+    EditVehicleForm, \
+    DeleteVehicleForm, \
+    SelectVehicleForm, \
+    DeleteAccountForm, \
+    DeletePitStopForm, \
+    EditPitstopForm, \
+    CreateConsumableForm, \
+    EditConsumableForm, \
+    DeletConsumableForm, \
+    SelectConsumableForm
+
+
+app = Flask(__name__)
+app.config.from_object(config[os.getenv('FLASK_CONFIG') or 'default'])
+
+db = SQLAlchemy(app)
+mail = Mail(app)
+
+from .entities import \
+    User, \
+    Role, \
+    Pitstop, \
+    Vehicle, \
+    Consumable
+
+# required to activate the filters
+from .filters import *
+from .tools import *
+
+
+user_datastore = SQLAlchemyUserDatastore(db, User, Role)
+security = Security(app, user_datastore)
+
+
+@user_registered.connect_via(app)
+def user_registered_sighandler(app, user, confirm_token):
+    """
+    Called after a user was created
+    """
+    role = user_datastore.find_role('user')
+    user_datastore.add_role_to_user(user, role)
+    new_vehicle = Vehicle('default vehicle')
+    db.session.add(new_vehicle)
+    user.vehicles.append(new_vehicle)
+    db.session.commit()
+    tools.db_log_add(user)
+    tools.db_log_add(new_vehicle)
+
+
+@app.before_first_request
+def before_first_request():
+    db.create_all()
+    user_datastore.find_or_create_role(name='admin', description='Role for administrators')
+    user_datastore.find_or_create_role(name='user', description='Role for all users.')
+    db.session.commit()
+
+
+@app.before_request
+def before_request():
+    g.data = {}
+
+
+@app.route('/')
+def index():
+    if current_user.is_authenticated:
+        return redirect(url_for('get_pit_stops'))
+    else:
+        user_count = len(User.query.all())
+        consumables = Consumable.query.all()
+        per_consumable = {}
+        for consumable in consumables:
+            per_consumable[consumable.id] = {
+                'name': consumable.name,
+                'unit': consumable.unit,
+                'amount': 0
+            }
+        vehicles = Vehicle.query.all()
+        kilometers = 0
+        for vehicle in vehicles:
+            stats = tools.VehicleStats(vehicle)
+            for consumable in stats.consumables:
+                per_consumable[consumable.id]['amount'] += consumable.overall_amount
+            kilometers += stats.overall_distance
+        vehicle_count = len(vehicles)
+        pitstop_count = len(Pitstop.query.all())
+        data = {
+            'users': user_count,
+            'vehicles': vehicle_count,
+            'pitstops': pitstop_count,
+            'kilometers': kilometers,
+            'consumables': per_consumable
+        }
+
+        return render_template('index.html', login_user_form=LoginForm(), data=data)
+
+
+@app.route('/account/vehicle/edit/<int:vid>', methods=['GET', 'POST'])
+@login_required
+def edit_vehicle(vid):
+    vehicle = Vehicle.query.filter(Vehicle.id == vid).first()
+
+    # prevent edit of foreign vehicles
+    if vehicle not in current_user.vehicles:
+        return redirect(url_for('get_account_page'))
+
+    form = EditVehicleForm()
+    form.consumables.choices = [(g.id, g.name) for g in Consumable.query.all()]
+
+    if not form.consumables.data:
+        form.consumables.default = [g.id for g in vehicle.consumables]
+
+    if form.name.data is not None:
+        form.name.default = form.name.data
+
+    if form.validate_on_submit():
+        vehicle.name = form.name.data
+        # we cannot delete consumables where there are pitstops for => report error
+        vehicle.consumables = []
+        for consumable_id in  form.consumables.data:
+            consumable = Consumable.query.get(consumable_id)
+            if consumable is not None:
+                vehicle.consumables.append(consumable)
+        try:
+            db.session.commit()
+            tools.db_log_update(vehicle)
+        except IntegrityError:
+            db.session.rollback()
+            form.name.errors.append('"%s" is not unique.' % (form.name.data))
+            return render_template('editVehicleForm.html', form=form)
+        return redirect(url_for('get_account_page'))
+
+    form.name.default = vehicle.name
+    form.process()
+    return render_template('editVehicleForm.html', form=form, vehicle=vehicle)
+
+
+@app.route('/account/vehicle/delete/<int:vid>', methods=['GET', 'POST'])
+@login_required
+def delete_vehicle(vid):
+    vehicle = Vehicle.query.filter(Vehicle.id == vid).first()
+
+    # prevent deletion of foreign vehicles
+    if vehicle not in current_user.vehicles:
+        return redirect(url_for('get_account_page'))
+
+    if len(current_user.vehicles) == 1:
+        return redirect(url_for('get_account_page'))
+
+    form = DeleteVehicleForm()
+
+    if form.validate_on_submit():
+        db.session.delete(vehicle)
+        db.session.commit()
+        tools.db_log_delete(vehicle)
+        return redirect(url_for('get_account_page'))
+
+    return render_template('deleteVehicleForm.html', form=form, vehicle=vehicle)
+
+
+@app.route('/account/vehicle/create', methods=['GET', 'POST'])
+@login_required
+def create_vehicle():
+    form = EditVehicleForm()
+    form.consumables.choices = [(g.id, g.name) for g in Consumable.query.all()]
+
+    if form.name.data is not None:
+        form.name.default = form.name.data
+
+    if form.consumables.data:
+        form.consumables.default = form.consumables.data
+
+    if form.validate_on_submit():
+        if len(form.consumables.data) == 0:
+            form.consumables.errors.append('At least one consumable must be selected.')
+            return render_template('createVehicleForm.html', form=form)
+
+        vehicle_name = form.name.data
+        new_vehicle = Vehicle(vehicle_name)
+        for consumable_id in form.consumables.data:
+            consumable = Consumable.query.get(consumable_id)
+            if consumable is not None:
+                new_vehicle.consumables.append(consumable)
+        db.session.add(new_vehicle)
+        current_user.vehicles.append(new_vehicle)
+        try:
+            db.session.commit()
+            tools.db_log_add(new_vehicle)
+        except IntegrityError:
+            db.session.rollback()
+            form.name.errors.append('"%s" is not unique.' % (form.name.data))
+            return render_template('createVehicleForm.html', form=form)
+        return redirect(url_for('get_account_page'))
+
+    return render_template('createVehicleForm.html', form=form)
+
+
+@app.route('/pitstops/vehicle/select', methods=['GET', 'POST'])
+@login_required
+def select_vehicle_for_new_pitstop():
+    if len(current_user.vehicles) == 1:
+        return redirect(url_for('select_consumable_for_new_pitstop', vid=current_user.vehicles[0].id))
+
+    form = SelectVehicleForm()
+    form.vehicle.choices = [(g.id, g.name) for g in current_user.vehicles]
+
+    if form.validate_on_submit():
+        return redirect(url_for('select_consumable_for_new_pitstop', vid=form.vehicle.data))
+
+    return render_template('selectVehicle.html', form=form)
+
+
+@app.route('/pitstops/vehicle/<int:vid>/consumable/select', methods=['GET', 'POST'])
+@login_required
+def select_consumable_for_new_pitstop(vid):
+    vehicle = Vehicle.query.get(vid)
+    if vehicle is None or vehicle not in current_user.vehicles:
+        return redirect(url_for('select_vehicle_for_new_pitstop'))
+
+    if len(vehicle.consumables) == 1:
+        return redirect(url_for('create_pit_stop_form', vid=vid, cid=vehicle.consumables[0].id))
+
+    form = SelectConsumableForm()
+    form.consumable.choices = [(g.id, g.name) for g in vehicle.consumables]
+
+    if form.validate_on_submit():
+        return redirect(url_for('create_pit_stop_form', vid=vid, cid=form.consumable.data))
+
+    return render_template('selectConsumableForVehicle.html', vehicle=vehicle, form=form)
+
+
+@app.route('/pitstops/vehicle/<int:vid>/consumable/<int:cid>/create', methods=['GET', 'POST'])
+@login_required
+def create_pit_stop_form(vid, cid):
+    vehicle = Vehicle.query.get(vid)
+    if vehicle is None or vehicle not in current_user.vehicles:
+        return redirect(url_for('select_vehicle_for_new_pitstop'))
+
+    consumable = Consumable.query.get(cid)
+    if consumable not in vehicle.consumables:
+        return redirect(url_for('select_consumable_for_new_pitstop', vid=vid))
+
+    form = CreatePitstopForm()
+
+    # the last pitstop is required to be able to check the monotonicy of date and odometer
+    last_pitstop = tools.get_latest_pitstop_for_vehicle(vid)
+    last_pitstop_consumable = tools.get_latest_pitstop_for_vehicle_and_consumable(vid, cid)
+
+    # we can enter the same odometer if the pitstops are not equal
+    form.same_odometer_allowed = (last_pitstop != last_pitstop_consumable)
+
+    # set the lower limits for odometer andd date and the values for amount and costs of the last stop
+    form.set_pitstop(tools.compute_lower_limits_for_new_pitstop(last_pitstop, last_pitstop_consumable, cid))
+
+    # set the label of the litres field to make the user comfortable
+    form.set_consumable(consumable)
+
+    # preinitialize the defaults with potentially existing values from a try before
+    form.preinit_with_data()
+
+    #
+    #   Validate should accept same odometer on different consumables
+    #
+    if form.validate_on_submit():
+        new_stop = Pitstop(form.odometer.data, form.litres.data, form.date.data, form.costs.data, cid)
+        db.session.add(new_stop)
+        vehicle.pitstops.append(new_stop)
+        try:
+            db.session.commit()
+            tools.db_log_add(new_stop)
+        except IntegrityError:
+            db.session.rollback()
+            form.odometer.errors.append('Pitstop already present for %s at odometer %s km!' % (consumable.name, form.odometer.data))
+            return render_template('createPitStopForm.html', form=form, vehicle=vehicle, messages=form.get_hint_messages())
+        return redirect(url_for('get_pit_stops', _anchor= 'v' + str(vehicle.id)))
+
+    form.process()
+    return render_template('createPitStopForm.html', form=form, vehicle=vehicle, messages=form.get_hint_messages())
+
+
+@app.route('/pitstops/delete/<int:pid>', methods=['GET', 'POST'])
+@login_required
+def delete_pit_stop_form(pid):
+    pitstop = Pitstop.query.filter(Pitstop.id == pid).first()
+    if pitstop is None:
+        return redirect(url_for('get_pit_stops'))
+    vehicle = Vehicle.query.filter(Vehicle.id == pitstop.vehicle_id).first()
+    if vehicle not in current_user.vehicles:
+        return redirect(url_for('get_pit_stops'))
+
+    form = DeletePitStopForm()
+    if form.validate_on_submit():
+        db.session.delete(pitstop)
+        db.session.commit()
+        tools.db_log_delete(pitstop)
+        return redirect(url_for('get_pit_stops', _anchor='v' + str(vehicle.id)))
+
+    return render_template('deletePitstopForm.html', form=form, pitstop=pitstop )
+
+
+@app.route('/pitstops/edit/<int:pid>', methods=['GET', 'POST'])
+@login_required
+def edit_pit_stop_form(pid):
+    edit_pitstop = Pitstop.query.get(pid).first()
+    if edit_pitstop is None:
+        return redirect(url_for('get_pit_stops'))
+
+    vehicle = Vehicle.query.filter(Vehicle.id == edit_pitstop.vehicle_id).first()
+    if vehicle not in current_user.vehicles:
+        return redirect(url_for('get_pit_stops'))
+
+    last_pitstop_pos = vehicle.pitstops.index(edit_pitstop) - 1
+    if last_pitstop_pos > 0:
+        last_pitstop = vehicle.pitstops[last_pitstop_pos]
+    else:
+        last_pitstop = Pitstop(0, 0, date(1970, 1, 1), 0, 0)
+
+    form = EditPitstopForm()
+    form.set_pitstop(last_pitstop)
+
+    if form.validate_on_submit():
+        edit_pitstop.costs = form.costs.data
+        edit_pitstop.date = form.date.data
+        edit_pitstop.litres = form.litres.data
+        edit_pitstop.odometer = form.odometer.data
+        db.session.commit()
+        tools.db_log_update(edit_pitstop)
+        return redirect(url_for('get_pit_stops', _anchor='v' + str(vehicle.id)))
+
+    form.odometer.default = edit_pitstop.odometer
+    form.litres.default = edit_pitstop.litres
+    form.date.default = edit_pitstop.date
+    form.costs.default = edit_pitstop.costs
+    form.process()
+    messages = {
+        'date': 'Date must be between %s and %s (including).' % (str(last_pitstop.date), str(date.today())),
+        'odometer': 'Odometer must be greater than %s km.' % (str(last_pitstop.odometer))
+    }
+    if edit_pitstop.costs > 0:
+        messages['costs'] = 'Costs must be higher than 0.01 €.'
+    return render_template('editPitStopForm.html', form=form, vehicle=vehicle, messages=messages)
+
+
+@app.route('/pitstops', methods=['GET'])
+@login_required
+def get_pit_stops():
+    return render_template('pitstops.html', user=current_user)
+
+
+@app.route('/manual', methods=['GET'])
+@login_required
+def get_manual():
+    return render_template('manual.html', data=g.data)
+
+
+@app.route('/admin', methods=['GET'])
+@roles_required('admin')
+def get_admin_page():
+    users = User.query.all()
+    consumables = Consumable.query.all()
+    for consumable in consumables:
+        consumable.in_use = len(consumable.vehicles) > 0
+    return render_template('admin.html', users=users, consumables=consumables)
+
+
+@app.route('/admin/consumable/create', methods=['GET', 'POST'])
+@login_required
+def create_consumable():
+    form = CreateConsumableForm()
+
+    # preinitialize the defaults with potentially existing values from a try before
+    if form.name.data is not None:
+        form.name.default = form.name.data
+    if form.unit.data is not None:
+        form.unit.default = form.unit.data
+
+    if form.validate_on_submit():
+        new_consumable = Consumable(form.name.data, form.unit.data)
+        db.session.add(new_consumable)
+        try:
+            db.session.commit()
+            tools.db_log_add(new_consumable)
+        except IntegrityError:
+            db.session.rollback()
+            form.name.errors.append('"%s" is not unique.' % (form.name.data))
+            return render_template('createConsumableForm.html', form=form)
+        return redirect(url_for('get_admin_page'))
+
+    return render_template('createConsumableForm.html', form=form)
+
+
+@app.route('/admin/consumable/delete/<int:cid>', methods=['GET', 'POST'])
+@login_required
+def delete_consumable(cid):
+    consumable = Consumable.query.filter(Consumable.id == cid).first()
+    if consumable is None:
+        return redirect(url_for('get_admin_page'))
+
+    form = DeletConsumableForm()
+
+    if form.validate_on_submit():
+        db.session.delete(consumable)
+        db.session.commit()
+        tools.db_log_delete(consumable)
+        return redirect(url_for('get_admin_page'))
+
+    return render_template('deleteConsumableForm.html', form=form, consumable=consumable)
+
+
+@app.route('/admin/consumable/edit/<int:cid>', methods=['GET', 'POST'])
+@login_required
+def edit_consumable(cid):
+    consumable = Consumable.query.filter(Consumable.id == cid).first()
+    if consumable is None:
+        return redirect(url_for('get_admin_page'))
+
+    form = EditConsumableForm()
+
+    form.name.default = consumable.name
+    form.unit.default = consumable.unit
+
+    # preinitialize the defaults with potentially existing values from a try before
+    if form.name.data is not None:
+        form.name.default = form.name.data
+    if form.unit.data is not None:
+        form.unit.default = form.unit.data
+
+    if form.validate_on_submit():
+        consumable.name = form.name.data
+        consumable.unit = form.unit.data
+        try:
+            db.session.commit()
+            tools.db_log_update(consumable)
+        except IntegrityError:
+            db.session.rollback()
+            form.name.errors.append('"%s" is not unique.' % (form.name.data))
+            return render_template('editConsumableForm.html', form=form)
+        return redirect(url_for('get_admin_page'))
+
+    return render_template('editConsumableForm.html', form=form)
+
+
+@app.route('/account', methods=['GET'])
+@login_required
+def get_account_page():
+    return render_template('account.html', data=g.data)
+
+
+@app.route('/statistics', methods=['GET'])
+@login_required
+def get_statistics():
+    stats = []
+    for vehicle in current_user.vehicles:
+        stats.append(tools.VehicleStats(vehicle))
+    return render_template('statistics.html', data=stats)
+
+
+@app.route('/account/delete', methods=['GET', 'POST'])
+@login_required
+def delete_account():
+    form = DeleteAccountForm()
+
+    if form.validate_on_submit():
+        user_datastore.delete_user(current_user)
+        db.session.commit()
+        return redirect(url_for('index'))
+
+    return render_template('deleteAccountForm.html', form=form)

app/entities.py

@@ -0,0 +1,142 @@
+from app import db
+from flask_security import UserMixin, RoleMixin
+
+roles_users = db.Table('roles_users',
+                       db.Column('user_id', db.Integer(), db.ForeignKey('user.id')),
+                       db.Column('role_id', db.Integer(), db.ForeignKey('role.id')))
+
+vehicles_consumables = db.Table('vehicles_consumables',
+                                db.Column('vehicle_id', db.Integer(), db.ForeignKey('vehicle.id')),
+                                db.Column('consumable_id', db.Integer(), db.ForeignKey('consumable.id')))
+
+
+class Role(db.Model, RoleMixin):
+    """
+    Entity to handle different roles for users: Typically user and admin exist
+    """
+    id = db.Column(db.Integer(), primary_key=True)
+    name = db.Column(db.String(80), unique=True)
+    description = db.Column(db.String(255))
+
+    def __str__(self):
+        return self.name
+
+    def __hash__(self):
+        return hash(self.name)
+
+
+class User(db.Model, UserMixin):
+    """
+    Entity to represent a user including login data and links to roles and vehicles.
+    """
+    id = db.Column(db.Integer, primary_key=True)
+    email = db.Column(db.String(255), unique=True)
+    password = db.Column(db.String(255))
+    active = db.Column(db.Boolean())
+    confirmed_at = db.Column(db.DateTime())
+
+    vehicles = db.relationship(
+        'Vehicle'
+    )
+    roles = db.relationship(
+        'Role',
+        secondary=roles_users,
+        backref=db.backref('users', lazy='dynamic')
+    )
+
+    def __repr__(self):
+        return '<User id="%r" email="%r" ' % (self.id, self.email)
+
+
+class Vehicle(db.Model):
+    """
+    Entity to represent a vehicle.
+    Attributes:
+     * name of the vehilce
+     * the id of the owner
+     * list of pitstops
+     * list of possible consumables
+    """
+    id = db.Column(db.Integer, primary_key=True)
+    owner_id = db.Column(db.Integer, db.ForeignKey('user.id'))
+    name = db.Column(db.String(255))
+    pitstops = db.relationship(
+        'Pitstop'
+    )
+    consumables = db.relationship(
+        'Consumable',
+        secondary=vehicles_consumables
+    )
+    # allow vehicle names to be duplicated between different owners but must still be uniq for each owner
+    __table_args__ = (db.UniqueConstraint('owner_id',
+                                          'name',
+                                          name='_owner_name_uniq'),)
+
+    def __init__(self, name):
+        self.name = name
+
+    def __repr__(self):
+        return '<Vehicle id="%r" owner_id="%r" name="%r" />' % (self.id, self.owner_id, self.name)
+
+
+class Pitstop(db.Model):
+    """
+    Entity to represent a pitstop for a single consumable.
+    Attributes:
+     * the date of the pitstop
+     * the odometer of the pitstop
+     * the id of the fuelled consumable
+     * amount of consumable used
+     * the costs of the consumable
+     * the id of the vehicle that was refuelled
+    """
+    id = db.Column(db.Integer, primary_key=True)
+    date = db.Column(db.Date)
+    odometer = db.Column(db.Integer)
+    consumable_id = db.Column(db.Integer, db.ForeignKey('consumable.id'))
+    amount = db.Column(db.Numeric(5, 2))
+    costs = db.Column(db.Numeric(5, 2), default=0)
+    vehicle_id = db.Column(db.Integer, db.ForeignKey('vehicle.id'))
+    # short cut to access the fuelled consumable of the pitstop
+    consumable = db.relationship('Consumable')
+    # this uniqueness constraint makes sure that for each consumable and each vehicle only one pitstop exists at the
+    # same odometer
+    __table_args__ = (db.UniqueConstraint('odometer',
+                                          'consumable_id',
+                                          'vehicle_id',
+                                          name='_odometer_consumable_vehicle_uniq'),)
+
+    def __init__(self, odometer, amount, date, costs, consumable_id):
+        self.odometer = odometer
+        self.amount = amount
+        self.date = date
+        self.costs = costs
+        self.consumable_id = consumable_id
+
+    def __repr__(self):
+        return '<Pitstop odometer="%r" amount="%r" date="%r" vehicle_id="%r" consumable_id="%r">' % \
+               (self.odometer, self.amount, self.date, self.vehicle_id, self.consumable_id)
+
+
+class Consumable(db.Model):
+    """
+    Entity to represent a material that be consumed by a vehilce.
+    Attributes:
+     * name (must be globally unique)
+     * unit
+    """
+    id = db.Column(db.Integer, primary_key=True)
+    name = db.Column(db.String(255), unique=True)
+    unit = db.Column(db.String(255))
+
+    vehicles = db.relationship(
+        'Vehicle',
+        secondary=vehicles_consumables
+    )
+
+    def __init__(self, name, unit):
+        self.name = name
+        self.unit = unit
+
+    def __repr__(self):
+        return '<Consumable name="%s" unit="%s" />' % (self.name, self.unit)

app/filters.py

@@ -1,4 +1,4 @@
-from rollerverbrauch import app
+from app import app
 import hashlib
 
 

app/forms.py

@@ -0,0 +1,169 @@
+from flask_wtf import Form
+from wtforms import DateField, IntegerField, DecimalField, StringField, SelectField, SubmitField, SelectMultipleField, BooleanField
+from wtforms.validators import ValidationError, Length
+from datetime import date
+
+
+def date_check(form, field):
+    """
+    Checks that the date of the pitstop is not before the date of the latest pitstop and not after today.
+
+    :param form: the form where the field is in
+    :param field: the field to check
+    :return: Nothing or a ValidationError if the limits are not kept
+    """
+    if field.data < form.last_pitstop.date:
+        raise ValidationError('The new date must not be before %s' % form.last_pitstop.date)
+    if field.data > date.today():
+        raise ValidationError('The new date must not be after %s' % date.today())
+
+
+def odometer_check(form, field):
+    """
+
+    :param form:
+    :param field:
+    :return:
+    """
+    if not form.same_odometer_allowed and field.data <= form.last_pitstop.odometer:
+        raise ValidationError('The new odometer value must be higher than %i km' % form.last_pitstop.odometer)
+    if form.same_odometer_allowed and field.data < form.last_pitstop.odometer:
+        raise ValidationError('The new odometer value must be higher than %i km' % form.last_pitstop.odometer)
+
+
+def litres_check(form, field):
+    if field.data is not None and field.data <= 0:
+        raise ValidationError('You must fuel at least 0.1 l')
+
+
+def costs_check(form, field):
+    if field.data is not None and field.data <= 0:
+        raise ValidationError('Costs must be above 0.01 €.')
+
+
+def edit_costs_check(form, field):
+    """
+    Costs must be given, if a default value was given to the form field.
+    :param form:
+    :param field:
+    :return:
+    """
+    costs_check_required = (form.costs.default is not None and form.costs.default > 0)
+    if costs_check_required and field.data is not None and field.data <= 0:
+        raise ValidationError('Costs must be above 0.01 €.')
+
+
+class SelectVehicleForm(Form):
+    vehicle = SelectField('Vehicle', coerce=int)
+    submit = SubmitField(label='Do it!')
+
+
+class SelectConsumableForm(Form):
+    consumable = SelectField('Consumable', coerce=int)
+    submit = SubmitField(label='Do it!')
+
+
+class CreatePitstopForm(Form):
+    date = DateField('Date of Pitstop', validators=[date_check])
+    odometer = IntegerField('Odometer (km)', validators=[odometer_check])
+    litres = DecimalField('Litres (l)', places=2, validators=[litres_check])
+    costs = DecimalField('Costs (€, overall)', places=2, validators=[costs_check])
+    submit = SubmitField(label='Do it!')
+    last_pitstop = None
+    same_odometer_allowed = True
+
+    def set_pitstop(self, last_pitstop):
+        self.last_pitstop = last_pitstop
+
+    def set_consumable(self, consumable):
+        self.litres.label = '%s (%s)' % (consumable.name, consumable.unit)
+
+    def preinit_with_data(self):
+        if self.date.data:
+            self.date.default = self.date.data
+        else:
+            self.date.default = self.last_pitstop.date
+        if self.odometer.data:
+            self.odometer.default = self.odometer.data
+        else:
+            self.odometer.default = self.last_pitstop.odometer
+        if self.litres.data:
+            self.litres.default = self.litres.data
+        else:
+            self.litres.default = self.last_pitstop.amount
+        if self.costs.data:
+            self.costs.default = self.costs.data
+        else:
+            self.costs.default = self.last_pitstop.costs
+
+    def get_hint_messages(self):
+        if self.same_odometer_allowed:
+            or_equal = ' or equal to'
+        else:
+            or_equal = ''
+        messages = {
+            'date': 'Date must be between %s and %s (including).' % (str(self.last_pitstop.date), str(date.today())),
+            'odometer': 'Odometer must be greater than%s %s km.' % (or_equal, str(self.last_pitstop.odometer)),
+            'costs': 'Costs must be higher than 0.01 €.'
+        }
+        return messages
+
+
+class EditVehicleForm(Form):
+    name = StringField('Name', validators=[Length(1, 255)])
+    consumables = SelectMultipleField('Consumables', coerce=int,validators=[])
+    submit = SubmitField(label='Do it!')
+
+
+class DeleteVehicleForm(Form):
+    submit = SubmitField(label='Do it!')
+
+
+class DeleteAccountForm(Form):
+    submit = SubmitField(label='Really delete my account!')
+
+
+class DeletePitStopForm(Form):
+    submit = SubmitField(label='Really delete this pitstop!')
+
+
+class EditPitstopForm(Form):
+    date = DateField('Date of Pitstop', validators=[date_check])
+    odometer = IntegerField('Odometer (km)', validators=[odometer_check])
+    litres = DecimalField('Litres (l)', places=2, validators=[litres_check])
+    costs = DecimalField('Costs (€, overall)', places=2, validators=[edit_costs_check])
+    submit = SubmitField(label='Update it!')
+    last_pitstop = None
+    same_odometer_allowed = True
+
+    def set_pitstop(self, last_pitstop):
+        self.last_pitstop = last_pitstop
+
+    def set_consumable(self, consumable):
+        self.litres.label = '%s (%s)' % (consumable.name, consumable.unit)
+
+    def preinit_with_data(self):
+        if self.date.data:
+            self.date.default = self.date.data
+        if self.odometer.data:
+            self.odometer.default = self.odometer.data
+        if self.litres.data:
+            self.litres.default = self.litres.data
+        if self.costs.data:
+            self.costs.default = self.costs.data
+
+
+class CreateConsumableForm(Form):
+    name = StringField('Name', validators=[Length(1, 255)])
+    unit = StringField('Unit', validators=[Length(1, 255)])
+    submit = SubmitField(label='Do it!')
+
+
+class EditConsumableForm(Form):
+    name = StringField('Name', validators=[Length(1, 255)])
+    unit = StringField('Unit', validators=[Length(1, 255)])
+    submit = SubmitField(label='Do it!')
+
+
+class DeletConsumableForm(Form):
+    submit = SubmitField(label='Do it!')

app/rollerverbrauch/__init__.py

@@ -1,253 +0,0 @@
-from datetime import date
-from flask import Flask
-from flask import redirect, g
-from flask import render_template
-from flask import url_for
-from flask.ext.mail import Mail
-from flask.ext.security import Security, SQLAlchemyUserDatastore, \
-    UserMixin, RoleMixin, login_required, roles_required
-from flask.ext.security import user_registered
-from flask_security.core import current_user
-from flask_sqlalchemy import SQLAlchemy
-from flask.ext.security.forms import LoginForm
-
-app = Flask(__name__)
-app.config['SECURITY_PASSWORD_HASH'] = 'pbkdf2_sha512'
-app.config['SECURITY_REGISTERABLE'] = True
-app.config['SECURITY_CHANGEABLE'] = True
-app.config['SECURITY_RECOVERABLE'] = True
-app.config.from_envvar('config')
-app.config.from_object(__name__)
-
-db = SQLAlchemy(app)
-mail = Mail(app)
-
-import rollerverbrauch.tools as tools
-
-from rollerverbrauch.forms import \
-    CreatePitstopForm, \
-    EditVehicleForm, \
-    DeleteVehicleForm, \
-    SelectVehicleForm, \
-    DeleteAccountForm
-
-from rollerverbrauch.entities import \
-    User, \
-    Role, \
-    Pitstop, \
-    Vehicle
-
-# required to activate the filters
-import rollerverbrauch.filters
-
-
-user_datastore = SQLAlchemyUserDatastore(db, User, Role)
-security = Security(app, user_datastore)
-
-
-@user_registered.connect_via(app)
-def user_registered_sighandler(app, user, confirm_token):
-    """
-    Called after a user was created
-    """
-    role = user_datastore.find_role('user')
-    user_datastore.add_role_to_user(user, role)
-    new_vehicle = Vehicle('default vehicle')
-    db.session.add(new_vehicle)
-    user.vehicles.append(new_vehicle)
-    db.session.commit()
-    tools.db_log_add(user)
-    tools.db_log_add(new_vehicle)
-
-
-@app.before_first_request
-def before_first_request():
-    db.create_all()
-    user_datastore.find_or_create_role(name='admin', description='Role for administrators')
-    user_datastore.find_or_create_role(name='user', description='Role for all users.')
-    db.session.commit()
-
-
-@app.before_request
-def before_request():
-    g.data = {}
-
-
-@app.route('/')
-def index():
-    if current_user.is_authenticated:
-        return redirect(url_for('get_pit_stops'))
-    else:
-        user_count = len(User.query.all())
-        vehicles = Vehicle.query.all()
-        litres = 0
-        kilometers = 0
-        for vehicle in vehicles:
-            stats = tools.VehicleStats(vehicle)
-            litres += stats.overall_litres
-            kilometers += stats.overall_distance
-        vehicle_count = len(vehicles)
-        pitstop_count = len(Pitstop.query.all())
-        data = {
-            'users':user_count,
-            'vehicles': vehicle_count,
-            'pitstops': pitstop_count,
-            'litres': litres,
-            'kilometers': kilometers
-        }
-        return render_template('index.html', login_user_form=LoginForm(), data=data)
-
-
-@app.route('/account/edit_vehicle/<int:vid>', methods=['GET', 'POST'])
-@login_required
-def edit_vehicle(vid):
-    vehicle = Vehicle.query.filter(Vehicle.id == vid).first()
-    form = EditVehicleForm()
-
-    if form.validate_on_submit():
-        if not tools.check_vehicle_name_is_unique(current_user, form.name):
-            return render_template('editVehicleForm.html', form=form)
-        vehicle.name = form.name.data
-        db.session.commit()
-        tools.db_log_update(vehicle)
-        return redirect(url_for('get_account_page'))
-
-    form.name.default = vehicle.name
-    form.process()
-    return render_template('editVehicleForm.html', form=form)
-
-
-@app.route('/account/delete_vehicle/<int:vid>', methods=['GET', 'POST'])
-@login_required
-def delete_vehicle(vid):
-    vehicle = Vehicle.query.filter(Vehicle.id == vid).first()
-
-    # prevent deletion of foreign vehicles
-    if vehicle not in current_user.vehicles:
-        return redirect(url_for('get_account_page'))
-
-    form = DeleteVehicleForm()
-
-    if form.validate_on_submit():
-        db.session.delete(vehicle)
-        db.session.commit()
-        tools.db_log_delete(vehicle)
-        return redirect(url_for('get_account_page'))
-
-    return render_template('deleteVehicleForm.html', form=form, vehicle=vehicle)
-
-
-@app.route('/account/create_vehicle', methods=['GET', 'POST'])
-@login_required
-def create_vehicle():
-    form = EditVehicleForm()
-
-    if form.validate_on_submit():
-        vehicle_name = form.name.data
-        if not tools.check_vehicle_name_is_unique(current_user, form.name):
-            return render_template('createVehicleForm.html', form=form)
-        new_vehicle = Vehicle(vehicle_name)
-        db.session.add(new_vehicle)
-        current_user.vehicles.append(new_vehicle)
-        db.session.commit()
-        tools.db_log_add(new_vehicle)
-        return redirect(url_for('get_account_page'))
-
-    return render_template('createVehicleForm.html', form=form)
-
-
-@app.route('/pitstops/select_vehicle', methods=['GET', 'POST'])
-@login_required
-def select_vehicle_for_new_pitstop():
-    form = SelectVehicleForm()
-    form.vehicle.choices = [(g.id, g.name) for g in current_user.vehicles]
-
-    if form.validate_on_submit():
-        vehicle = Vehicle.query.filter(Vehicle.id == form.vehicle.data).first()
-        if vehicle not in current_user.vehicles:
-            return render_template('selectVehice.html', form=form)
-
-        return redirect(url_for('create_pit_stop_form', vid=form.vehicle.data))
-
-    return render_template('selectVehice.html', form=form)
-
-
-@app.route('/pitstops/create/<int:vid>', methods=['GET', 'POST'])
-@login_required
-def create_pit_stop_form(vid):
-    vehicle = Vehicle.query.filter(Vehicle.id == vid).first()
-    if vehicle not in current_user.vehicles:
-        return redirect(url_for('select_vehicle_for_new_pitstop'))
-
-    if len(vehicle.pitstops) > 0:
-        last_pitstop = vehicle.pitstops[-1]
-    else:
-        last_pitstop = Pitstop(0, 0, date(1970, 1, 1))
-
-    form = CreatePitstopForm()
-    form.set_pitstop(last_pitstop)
-
-    if form.validate_on_submit():
-        new_stop = Pitstop(form.odometer.data, form.litres.data, form.date.data)
-        db.session.add(new_stop)
-        vehicle.pitstops.append(new_stop)
-        db.session.commit()
-        tools.db_log_add(new_stop)
-        return redirect(url_for('get_pit_stops', _anchor= 'v' + str(vehicle.id)))
-
-    form.odometer.default = last_pitstop.odometer
-    form.litres.default = last_pitstop.litres
-    form.date.default = date.today()
-    form.process()
-    messages = {
-        'date': 'Date must be between %s and %s (including).' % (str(last_pitstop.date), str(date.today())),
-        'odometer': 'Odometer must be greater than %s km.' % (str(last_pitstop.odometer))
-    }
-    return render_template('newPitStopForm.html', form=form, vehicle=vehicle, messages = messages)
-
-
-@app.route('/pitstops', methods=['GET'])
-@login_required
-def get_pit_stops():
-    return render_template('pitstops.html', user=current_user)
-
-
-@app.route('/manual', methods=['GET'])
-@login_required
-def get_manual():
-    return render_template('manual.html', data=g.data)
-
-
-@app.route('/admin', methods=['GET'])
-@roles_required('admin')
-def get_admin_page():
-    g.data['users'] = User.query.all()
-    return render_template('admin.html', data=g.data)
-
-
-@app.route('/account', methods=['GET'])
-@login_required
-def get_account_page():
-    return render_template('account.html', data=g.data)
-
-
-@app.route('/statistics', methods=['GET'])
-@login_required
-def get_statistics():
-    stats = []
-    for vehicle in current_user.vehicles:
-        stats.append(tools.VehicleStats(vehicle))
-    return render_template('statistics.html', data=stats)
-
-
-@app.route('/account/delete', methods=['GET', 'POST'])
-@login_required
-def delete_account():
-    form = DeleteAccountForm()
-
-    if form.validate_on_submit():
-        user_datastore.delete_user(current_user)
-        db.session.commit()
-        return redirect(url_for('index'))
-
-    return render_template('deleteAccountForm.html', form=form)

app/rollerverbrauch/entities.py

@@ -1,69 +0,0 @@
-from rollerverbrauch import db
-from flask.ext.security import UserMixin, RoleMixin
-
-roles_users = db.Table('roles_users',
-                       db.Column('user_id', db.Integer(), db.ForeignKey('user.id')),
-                       db.Column('role_id', db.Integer(), db.ForeignKey('role.id')))
-
-
-class Role(db.Model, RoleMixin):
-    id = db.Column(db.Integer(), primary_key=True)
-    name = db.Column(db.String(80), unique=True)
-    description = db.Column(db.String(255))
-
-    def __str__(self):
-        return self.name
-
-    def __hash__(self):
-        return hash(self.name)
-
-
-class User(db.Model, UserMixin):
-    id = db.Column(db.Integer, primary_key=True)
-    email = db.Column(db.String(255), unique=True)
-    password = db.Column(db.String(255))
-    active = db.Column(db.Boolean())
-    confirmed_at = db.Column(db.DateTime())
-    vehicles = db.relationship(
-        'Vehicle'
-    )
-    roles = db.relationship(
-        'Role',
-        secondary=roles_users,
-        backref=db.backref('users', lazy='dynamic')
-    )
-
-    def __repr__(self):
-        return '<User id="%r" email="%r" ' % (self.id, self.email)
-
-
-class Vehicle(db.Model):
-    id = db.Column(db.Integer, primary_key=True)
-    owner_id = db.Column(db.Integer, db.ForeignKey('user.id'))
-    name = db.Column(db.String(255))
-    pitstops = db.relationship(
-        'Pitstop'
-    )
-    __table_args__ = (db.UniqueConstraint('owner_id', 'name', name='_owner_name_uniq'),)
-
-    def __init__(self, name):
-        self.name = name
-
-    def __repr__(self):
-        return '<Vehicle id="%r" owner_id="%r" name="%r" />' % (self.id, self.owner_id, self.name)
-
-
-class Pitstop(db.Model):
-    id = db.Column(db.Integer, primary_key=True)
-    date = db.Column(db.Date)
-    odometer = db.Column(db.Integer)
-    litres = db.Column(db.Numeric(5, 2))
-    vehicle_id = db.Column(db.Integer, db.ForeignKey('vehicle.id'))
-
-    def __init__(self, odometer, litres, date):
-        self.odometer = odometer
-        self.litres = litres
-        self.date = date
-
-    def __repr__(self):
-        return '<Pitstop odometer="%r" litres="%r" date="%r" vehicle_id="%r">' % (self.odometer, self.litres, self.date, self.vehicle_id)

app/rollerverbrauch/forms.py

@@ -1,50 +0,0 @@
-from flask_wtf import Form
-from wtforms import DateField, IntegerField, DecimalField, StringField, SelectField, SubmitField
-from wtforms.validators import ValidationError, Length
-from datetime import date
-
-
-def date_check(form, field):
-    if field.data < form.last_pitstop.date:
-        raise ValidationError('The new date must not be before %s' % form.last_pitstop.date)
-    if field.data > date.today():
-        raise ValidationError('The new date must not be after %s' % date.today())
-
-
-def odometer_check(form, field):
-    if field.data <= form.last_pitstop.odometer:
-        raise ValidationError('The new odometer value must be higher than %i km' % form.last_pitstop.odometer)
-
-
-def litres_check(form, field):
-    if field.data is not None and field.data <= 0:
-        raise ValidationError('You must fuel at least 0.1 l')
-
-
-class SelectVehicleForm(Form):
-    vehicle = SelectField('Vehicle', coerce=int)
-    submit = SubmitField(label='Do it!')
-
-
-class CreatePitstopForm(Form):
-    date = DateField('Date of Pitstop', validators=[date_check])
-    odometer = IntegerField('Odometer (km)', validators=[odometer_check])
-    litres = DecimalField('Litres (l)', places=2, validators=[litres_check])
-    submit = SubmitField(label='Do it!')
-    last_pitstop = None
-
-    def set_pitstop(self, last_pitstop):
-        self.last_pitstop = last_pitstop
-
-
-class EditVehicleForm(Form):
-    name = StringField('Name', validators=[Length(1, 255)])
-    submit = SubmitField(label='Do it!')
-
-
-class DeleteVehicleForm(Form):
-    submit = SubmitField(label='Do it!')
-
-
-class DeleteAccountForm(Form):
-    submit = SubmitField(label='Really delete my account!')

app/rollerverbrauch/templates/admin.html

@@ -1,18 +0,0 @@
-{% extends "layout.html" %}
-
-{% block body %}
-<div class="col-md-2" ></div>
-<div class="col-md-8">
-    <div class="panel panel-default">
-        <div class="panel-body">
-		    <h3>Admin</h3>
-            We have {{ data.users|length }} users so far:
-            <ul>
-                {% for user in data.users %}
-                    <li>{{user.email}}</li>
-                {% endfor %}
-            </ul>
-        </div>
-    </div>
-</div>
-{% endblock %}

app/rollerverbrauch/templates/pitstops.html

@@ -1,92 +0,0 @@
- {% extends "layout.html" %}
-{% block body %}
-    <div id="content">
-        <ul id="tabs" class="nav nav-tabs" data-tabs="tabs">
-            {% for vehicle in current_user.vehicles %}
-                <li {% if loop.first %}class="active" {%endif %}>
-                    <a href="#v{{vehicle.id}}" id="i{{vehicle.id}}" data-toggle="tab">
-                        {{ vehicle.name }}
-                    </a>
-                </li>
-            {% endfor %}
-        </ul>
-        <div id="my-tab-content" class="tab-content">
-            {% for vehicle in current_user.vehicles %}
-                <div class="tab-pane {% if loop.first %}active{% endif %}" id="v{{vehicle.id}}">
-                    <h3>{{vehicle.name}}</h3>
-                    {% if vehicle.pitstops %}
-                        <div class="table-responsive">
-                            <table class="table table-striped table-bordered table-condensed">
-                                <tr>
-                                    <th>
-                                        Date<br/>
-                                        Days
-                                    </th>
-                                    <th>
-                                        Odometer<br/>
-                                        Distance
-                                    </th>
-                                    <th>
-                                        Litres<br/>
-                                        Average
-                                    </th>
-                                </tr>
-                                {% for pitstop in vehicle.pitstops|reverse %}
-                                    {% if not loop.last %}
-                                        {% set days = (pitstop.date - vehicle.pitstops[vehicle.pitstops|length - loop.index - 1].date).days %}
-                                        {% set distance = pitstop.odometer - vehicle.pitstops[vehicle.pitstops|length - loop.index - 1].odometer %}
-                                        {% set average = (pitstop.litres / distance) * 100 %}
-                                        <tr class='pitstop'>
-                                            <td>
-                                                {{pitstop.date}}<br/>
-                                                {{ days }} days
-                                            </td>
-                                            <td>
-                                                {{pitstop.odometer}} km<br/>
-                                                {{distance}} km
-                                            </td>
-                                            <td>
-                                                {{pitstop.litres}} l<br/>
-                                                {{average | round(2)}} l/100km
-                                            </td>
-                                        </tr>
-                                    {% else %}
-                                        <tr class='pitstop'>
-                                            <td>
-                                                {{pitstop.date}}<br/>
-                                                -- days
-                                            </td>
-                                            <td>
-                                                {{pitstop.odometer}} km<br/>
-                                                -- km
-                                            </td>
-                                            <td>
-                                                {{pitstop.litres}} l<br/>
-                                                -- l/100km
-                                            </td>
-                                        </tr>
-                                    {% endif %}
-                                {% endfor %}
-                            </table>
-                        </div>
-                    {% else %}
-                        <div class="alert alert-warning" role="alert">
-                            not enough data: <a href="{{ url_for('create_pit_stop_form', vid=vehicle.id) }}">log a pitstop</a>?
-                        </div>
-                    {% endif %}
-                </div>
-            {% endfor %}
-        </div>
-    </div>
-
-
-    <script type="text/javascript">
-        jQuery(document).ready(function ($) {
-            $('#tabs').tab();
-            if(window.location.hash != "") {
-                  $('a[href="' + window.location.hash + '"]').click()
-            }
-          });
-
-    </script>
-{% endblock %}

app/rollerverbrauch/templates/statistics.html

@@ -1,119 +0,0 @@
-{% extends "layout.html" %}
-
-{% block body %}
-    <div id="content">
-        <ul id="vehicle_tabs" class="nav nav-tabs" data-tabs="tabs">
-            {% for vehicle in data %}
-                <li {% if loop.first %}class="active" {%endif %}>
-                    <a href="#v{{vehicle.id}}" id="i{{vehicle.id}}" data-toggle="tab">
-                        {{ vehicle.name }}
-                    </a>
-                </li>
-            {% endfor %}
-        </ul>
-        <div id="vehicle_content" class="tab-content ">
-            {% for vehicle in data %}
-                <div class="tab-pane {% if loop.first %}active{% endif %}" id="v{{vehicle.id}}">
-                    <h3>{{vehicle.name}}</h3>
-                    <div class="table-responsive">
-                        <table class="table table-striped table-bordered table-condensed">
-							<tr>
-								<th>Number of Pitstops:</th>
-								<td>{{ vehicle.pitstop_count }}</td>
-							</tr>
-							<tr>
-								<th>Logged Distance:</th>
-								<td>{{ vehicle.overall_distance | round(2) }} km</td>
-							</tr>
-							<tr>
-								<th>Average Distance:</th>
-								<td>{{ vehicle.average_distance | round(2) }} km</td>
-							</tr>
-								<tr>
-								<th>Litres fuelled:</th>
-								<td>{{ vehicle.overall_litres | round(2) }} l</td>
-							</tr>
-							<tr>
-								<th>Average Litres fuelled:</th>
-								<td>{{ vehicle.average_litres_fuelled | round(2) }} l</td>
-							</tr>
-							<tr>
-								<th>Average Litres used:</th>
-								<td>{{ vehicle.average_litres_used | round(2) }} l/100km</td>
-							</tr>
-						</table>
-					</div>
-                    <ul id="charts_tabs" class="nav nav-tabs" data-tabs="tabs">
-                        <li class="active">
-                            <a href="#v{{vehicle.id}}_c3" id="i{{vehicle.id}}_c3" data-toggle="tab">
-                                Consumption
-                            </a>
-                        </li>
-                        <li>
-                            <a href="#v{{vehicle.id}}_c1" id="i{{vehicle.id}}_c1" data-toggle="tab">
-                                Fuelled litres
-                            </a>
-                        </li>
-                        <li>
-                            <a href="#v{{vehicle.id}}_c2" id="i{{vehicle.id}}_c2" data-toggle="tab">
-                                Odometer
-                            </a>
-                        </li>
-                    </ul>
-                    <div id="charts_tabs-content" class="tab-content">
-                       <div class="tab-pane active" id="v{{vehicle.id}}_c3">
-                            {% if vehicle.pitstop_count > 1 %}
-    					        <div id="averageUsageDiv{{vehicle.id}}" style="width:100%; height:500px;"></div>
-                                <script type="text/javascript">
-                                    {{ chartScript('averageUsageDiv'+vehicle.id|str, vehicle.average_litres, 'l/100 km') }}
-                                </script>
-                            {% else %}
-                                <div class="alert alert-warning" role="alert">
-                                    not enough data: <a href="{{ url_for('create_pit_stop_form', vid=vehicle.id) }}">log a pitstop</a>?
-                                </div>
-                            {% endif %}
-                        </div>
-                        <div class="tab-pane " id="v{{vehicle.id}}_c1">
-                            {% if vehicle.pitstop_count > 0 %}
- 					            <div id="fuelledChartDiv{{vehicle.id}}" style="width:100%; height:500px;"></div>
-                                <script type="text/javascript">
-                                    {{ chartScript('fuelledChartDiv'+vehicle.id|str, vehicle.litres, 'l') }}
-                                </script>
-                            {% else %}
-                                <div class="alert alert-warning" role="alert">
-                                    not enough data: <a href="{{ url_for('create_pit_stop_form', vid=vehicle.id) }}">log a pitstop</a>?
-                                </div>
-                            {% endif %}
-                        </div>
-                        <div class="tab-pane " id="v{{vehicle.id}}_c2">
-                            {% if vehicle.pitstop_count > 0 %}
-    					        <div id="odometerChartDiv{{vehicle.id}}" style="width:100%; height:500px;"></div>
-                                <script type="text/javascript">
-                                    {{ chartScript('odometerChartDiv'+vehicle.id|str, vehicle.odometers, 'km') }}
-                                </script>
-                            {% else %}
-                                <div class="alert alert-warning" role="alert">
-                                    not enough data: <a href="{{ url_for('create_pit_stop_form', vid=vehicle.id) }}">log a pitstop</a>?
-                                </div>
-                            {% endif %}
-                        </div>
-                    </div>
-                </div>
-            {% endfor %}
-        </div>
-    </div>
-
-
-    <script type="text/javascript">
-        jQuery(document).ready(function ($) {
-            $('#vehicle_tabs').tab();
-            if(window.location.hash != "") {
-                  $('a[href="' + window.location.hash + '"]').click()
-            }
-          });
-
-    </script>
-
-
-
-{% endblock %}

app/rollerverbrauch/tools.py

@@ -1,67 +0,0 @@
-import logging
-
-
-class VehicleStats:
-    def __init__(self, vehicle):
-        self.name = vehicle.name
-        self.id = vehicle.id
-        self.pitstop_count = len(vehicle.pitstops)
-        self.overall_distance = 0
-        self.average_distance = 0
-        self.overall_litres = 0
-        self.average_litres_fuelled = 0
-        self.average_litres_used = 0
-        self.litres = []
-        self.average_litres = []
-        self.odometers = []
-
-        if self.pitstop_count > 0:
-            for pitstop in vehicle.pitstops:
-                self.overall_litres += pitstop.litres
-                self.litres.append(StatsEvent(pitstop.date, pitstop.litres))
-                self.odometers.append(StatsEvent(pitstop.date, pitstop.odometer))
-            self.average_litres_fuelled = self.overall_litres / self.pitstop_count
-        if self.pitstop_count > 1:
-            self.overall_distance = vehicle.pitstops[-1].odometer - vehicle.pitstops[0].odometer
-            self.average_distance = self.overall_distance / (self.pitstop_count - 1)
-            self.average_litres_used = 100 * (self.overall_litres - vehicle.pitstops[0].litres) / self.overall_distance
-            for index in range(1, self.pitstop_count):
-                last_ps = vehicle.pitstops[index - 1]
-                current_ps = vehicle.pitstops[index]
-                self.average_litres.append(StatsEvent(current_ps.date, round(100 * current_ps.litres/(current_ps.odometer - last_ps.odometer),2)))
-
-
-class StatsEvent:
-    def __init__(self, date, value):
-        self.date = date
-        self.value = value
-
-
-def db_log_add(entity):
-    logging.info('db_add: %s' % str(entity))
-
-
-def db_log_delete(entity):
-    logging.info('db_delete: %s' % str(entity))
-
-
-def db_log_update(entity):
-    logging.info('db_update: %s' % str(entity))
-
-
-def check_vehicle_name_is_unique(current_user, name_field):
-    """
-    Checks if the vehicle name given in the name_field is unique for the vehicles of the current user. An error is added
-    to the field it the name is not unique.
-
-    :param current_user: the user currently logged in
-    :param name_field: the form field to enter the name to
-    :return: True if the name is unique, False otherwise.
-    """
-    vehicle_name = name_field.data
-    for vehicle in current_user.vehicles:
-        if vehicle.name == vehicle_name:
-            name_field.default = vehicle_name
-            name_field.errors.append('Vehicle "%s" already exists.' % vehicle_name)
-            return False
-    return True

app/templates/account.html

@@ -36,7 +36,8 @@
                             {{ vehicle.name }}
                         </td>
                         <td>
-                            {{ vehicle.pitstops | length }} pitstops
+                            {{ vehicle.pitstops | length }} pitstops<br />
+                            {{ vehicle.consumables | length }} consumables
                         </td>
                         <td>
                             <a href="{{ url_for('edit_vehicle', vid=vehicle.id) }}" class="btn btn-primary " role="button">

app/templates/admin.html

@@ -0,0 +1,66 @@
+{% extends "layout.html" %}
+
+{% block body %}
+    <h3>Admin</h3>
+    <div class="panel panel-default">
+        <div class="panel-heading">Users</div>
+        <div class="panel-body">
+            We have {{ users|length }} users so far:
+            <ul>
+                {% for user in users %}
+                    <li>{{user.email}}</li>
+                {% endfor %}
+        </div>
+    </div>
+
+    <div class="panel panel-default">
+        <div class="panel-heading">Consumables</div>
+        <div class="panel-body">
+            <a href="{{ url_for('create_consumable') }}" class="btn btn-primary " role="button">
+                <span class="glyphicon glyphicon-plus" aria-hidden="true"></span> create
+            </a>
+        </div>
+        <table class="table table-striped table-bordered">
+            <tbody>
+                <tr>
+                    <th>
+                        Name
+                    </th>
+                    <th>
+                        Unit
+                    </th>
+                    <th>
+                        Used by
+                    </th>
+                    <th>
+                        Actions
+                    </th>
+                </tr>
+                {% for consumable in consumables %}
+                    <tr>
+                        <td>
+                            {{ consumable.name }}
+                        </td>
+                        <td>
+                            {{ consumable.unit }}
+                        </td>
+                        <td>
+                            {{ consumable.vehicles | length }} vehicles
+                        </td>
+                        <td>
+                            {% if not consumable.in_use %}
+                                <a href="{{ url_for('delete_consumable', cid=consumable.id) }}"  class="btn btn-primary btn-warning " role="button">
+                                    <span class="glyphicon glyphicon-trash" aria-hidden="true"></span> delete
+                                </a>
+                            {% endif %}
+                            <a href="{{ url_for('edit_consumable', cid=consumable.id) }}" class="btn btn-primary " role="button">
+                                <span class="glyphicon glyphicon-pencil" aria-hidden="true"></span> edit
+                            </a>
+                        </td>
+                    </tr>
+                {% endfor %}
+            </tbody>
+        </table>
+    </div>
+
+{% endblock %}

app/templates/createConsumableForm.html

@@ -0,0 +1,19 @@
+{% extends "layout.html" %}
+
+{% block body %}
+<div class="col-md-2" ></div>
+<div class="col-md-8">
+    <div class="panel panel-default">
+        <div class="panel-body">
+            <h3>Create consumable</h3>
+            <form class='form-horizontal' method="POST">
+                {{ form.hidden_tag() }}
+                {{ render_field_with_errors(form.name) }}
+                {{ render_field_with_errors(form.unit) }}
+                {{ render_field_with_errors(form.submit) }}
+            </form>
+        </div>
+    </div>
+</div>
+<div class="col-md-2" ></div>
+{% endblock %}

app/templates/createPitStopForm.html

@@ -17,9 +17,14 @@
                     {{messages['odometer']}}
                 </span>
                 {{ render_field_with_errors(form.litres) }}
+                {{ render_field_with_errors(form.costs) }}
+               <span id="{{form.costs.id}}_help" class="help-block">
+                    {{messages['costs']}}
+                </span>
                 {{ render_field_with_errors(form.submit) }}
             </form>
         </div>
     </div>
 </div>
+<div class="col-md-2" ></div>
 {% endblock %}

app/templates/createVehicleForm.html

@@ -9,6 +9,7 @@
             <form class='form-horizontal' method="POST">
                 {{ form.hidden_tag() }}
                 {{ render_field_with_errors(form.name) }}
+                {{ render_field_with_errors(form.consumables) }}
                 {{ render_field_with_errors(form.submit) }}
             </form>
         </div>

app/templates/deleteConsumableForm.html

@@ -0,0 +1,18 @@
+{% extends "layout.html" %}
+
+{% block body %}
+<div class="col-md-2" ></div>
+<div class="col-md-8">
+    <div class="panel panel-default">
+        <div class="panel-body">
+            <h3>Delete vehicle '{{consumable.name}}'?</h3>
+            <form class='form-horizontal' method="POST">
+                {{ form.hidden_tag() }}
+                {{ render_field_with_errors(form.submit) }}
+
+            </form>
+        </div>
+    </div>
+</div>
+<div class="col-md-2" ></div>
+{% endblock %}

app/templates/deletePitstopForm.html

@@ -0,0 +1,35 @@
+{% extends 'layout.html' %}
+
+{% block body %}
+<div class='col-md-2' ></div>
+<div class='col-md-8'>
+    <div class='panel panel-default'>
+        <div class='panel-body'>
+            <h3>Delete pitstop?</h3>
+            <table style='width: 100%'>
+                <tr>
+                    <th style='text-align:right'>Date of Pitstop</th>
+                    <td style='text-align: left'>{{ pitstop.date }}</td>
+                </tr>
+                <tr>
+                    <th style='text-align:right'>Odometer</th>
+                    <td style='text-align: left'>{{ pitstop.odometer }} km</td>
+                </tr>
+                <tr>
+                    <th style='text-align:right'>Litres</th>
+                    <td style='text-align: left'>{{ pitstop.litres }} l</td>
+                </tr>
+                <tr>
+                    <th style='text-align:right'>Costs (overall)</th>
+                    <td style='text-align: left'>{{ pitstop.costs }} €</td>
+                </tr>
+            </table>
+            <form class='form-horizontal' method='POST'>
+                {{ form.hidden_tag() }}
+                {{ render_field_with_errors(form.submit) }}
+            </form>
+        </div>
+    </div>
+</div>
+<div class='col-md-2' ></div>
+{% endblock %}

app/templates/editConsumableForm.html

@@ -0,0 +1,19 @@
+{% extends "layout.html" %}
+
+{% block body %}
+<div class="col-md-2" ></div>
+<div class="col-md-8">
+    <div class="panel panel-default">
+        <div class="panel-body">
+            <h3>Edit consumable </h3>
+            <form class='form-horizontal' method="POST">
+                {{ form.hidden_tag() }}
+                {{ render_field_with_errors(form.name) }}
+                {{ render_field_with_errors(form.unit) }}
+                {{ render_field_with_errors(form.submit) }}
+            </form>
+        </div>
+    </div>
+</div>
+<div class="col-md-2" ></div>
+{% endblock %}

app/templates/editPitStopForm.html

@@ -0,0 +1,29 @@
+{% extends "layout.html" %}
+
+{% block body %}
+<div class="col-md-2" ></div>
+<div class="col-md-8">
+    <div class="panel panel-default">
+        <div class="panel-body">
+            <h3>Edit Pitstop for '{{ vehicle.name }}'</h3>
+            <form class='form-horizontal' method="POST">
+                {{ form.hidden_tag() }}
+                {{ render_field_with_errors(form.date) }}
+                <span id="{{form.date.id}}_help" class="help-block">
+                    {{messages['date']}}
+                </span>
+                {{ render_field_with_errors(form.odometer) }}
+               <span id="{{form.odometer.id}}_help" class="help-block">
+                    {{messages['odometer']}}
+                </span>
+                {{ render_field_with_errors(form.litres) }}
+                {{ render_field_with_errors(form.costs) }}
+               <span id="{{form.costs.id}}_help" class="help-block">
+                    {{messages['costs']}}
+                </span>
+                {{ render_field_with_errors(form.submit) }}
+            </form>
+        </div>
+    </div>
+</div>
+{% endblock %}

app/templates/editVehicleForm.html

@@ -9,6 +9,7 @@
             <form class='form-horizontal' method="POST">
                 {{ form.hidden_tag() }}
                 {{ render_field_with_errors(form.name) }}
+                {{ render_field_with_errors(form.consumables) }}
                 {{ render_field_with_errors(form.submit) }}
             </form>
         </div>

app/templates/index.html

@@ -11,7 +11,13 @@
             <div class="panel-body" >
                 <h1>Join the pitstop community!</h1>
 
-                <p>There are already {{ data.users}} members with {{ data.vehicles }} vehicles who have logged {{ data.pitstops }} pitstops fuelling {{ data.litres }}l for {{ data.kilometers }}km.</p>
+                <p>There are already {{ data.users}} members with {{ data.vehicles }} vehicles who have logged {{ data.kilometers }}km in {{ data.pitstops }} pitstops. They fuelled</p>
+                <ul>
+                    {% for key in data.consumables %}
+                        {% set consumable = data.consumables[key] %}
+                        <li>{{consumable.amount}}{{consumable.unit}} of {{consumable.name}}</li>
+                    {% endfor %}
+                </ul>
 
                 <p>With pitstop community you can:</p>
                 <ul>

app/templates/layout.html

@@ -85,30 +85,6 @@
 {% endmacro %}
 
 
-{% macro chartScript(divId, data, unit)%}
-    {% set hash = divId | md5 %}
-
-    data_{{ hash }} = [{% for stop in data %}{
-                                "date": "{{stop.date}}",
-                                "value": {{stop.value}}
-                            }{% if not loop.last %},{%endif%}
-                            {% endfor%}
-                            ]
-    var chart_{{ hash }} = createChart('{{divId}}', data_{{ hash }}, '{{unit}}');
-
-    function zoom_chart_{{ hash }}() {
-        chart_{{ hash }}.zoomToIndexes(
-            chart_{{ hash }}.dataProvider.length - 40,
-            chart_{{ hash }}.dataProvider.length - 1
-        );
-    }
-
-    chart_{{ hash }}.addListener("rendered", zoom_chart_{{ hash }});
-
-    zoom_chart_{{ hash }}()
-
-{% endmacro %}
-
 
 <!doctype html>
 <!--[if lt IE 7]>      <html class="no-js lt-ie9 lt-ie8 lt-ie7" lang=""> <![endif]-->

app/templates/pitstops.html

@@ -0,0 +1,78 @@
+ {% extends "layout.html" %}
+{% block body %}
+    <div class="col-md-2" ></div>
+    <div class="col-md-8">
+        <ul id="tabs" class="nav nav-tabs" data-tabs="tabs">
+            {% for vehicle in current_user.vehicles %}
+                <li {% if loop.first %}class="active" {%endif %}>
+                    <a href="#v{{vehicle.id}}" id="i{{vehicle.id}}" data-toggle="tab">
+                        {{ vehicle.name }}
+                    </a>
+                </li>
+            {% endfor %}
+        </ul>
+        <div id="my-tab-content" class="tab-content">
+            {% for vehicle in current_user.vehicles %}
+                <div class="tab-pane {% if loop.first %}active{% endif %}" id="v{{vehicle.id}}">
+                    <h3>{{vehicle.name}}</h3>
+                    {% if vehicle.pitstops %}
+                        {% for pitstop in vehicle.pitstops|reverse %}
+                            <div class="panel panel-default">
+                                <div class="panel-body">
+                                    <table class="table table-striped table-bordered table-condensed">
+                                        <tr>
+                                            <th>Date</th>
+                                            <td>{{pitstop.date}}</td>
+                                        </tr>
+                                        <tr>
+                                            <th>Odometer</th>
+                                            <td>{{pitstop.odometer}} km</td>
+                                        </tr>
+                                        <tr>
+                                            <th>{{ pitstop.consumable.name }}</th>
+                                            <td>{{pitstop.amount}} {{ pitstop.consumable.unit }}</td>
+                                        </tr>
+                                        <tr>
+                                            <th>Costs</th>
+                                            <td>
+                                                {% if pitstop.costs %}
+                                                    {{pitstop.costs}} €
+                                                {% else %}
+                                                    -- €
+                                                {% endif %}
+                                            </td>
+                                        </tr>
+                                    </table>
+                                    {% if loop.first %}
+                                        <a href="{{ url_for('edit_pit_stop_form', pid=pitstop.id) }}" class="btn btn-primary">
+                                            <span class="glyphicon glyphicon-pencil" aria-hidden="true"></span> edit
+                                        </a>
+                                        <a href="{{ url_for('delete_pit_stop_form', pid=pitstop.id) }}" class="btn btn-primary btn-warning ">
+                                            <span class="glyphicon glyphicon-trash" aria-hidden="true"></span> delete
+                                        </a>
+                                    {% endif %}
+                                </div>
+                            </div>
+                        {% endfor %}
+                    {% else %}
+                        <div class="alert alert-warning" role="alert">
+                            not enough data: <a href="{{ url_for('select_consumable_for_new_pitstop', vid=vehicle.id) }}">log a pitstop</a>?
+                        </div>
+                    {% endif %}
+                </div>
+            {% endfor %}
+        </div>
+    </div>
+    <div class="col-md-2" ></div>
+
+
+    <script type="text/javascript">
+        jQuery(document).ready(function ($) {
+            $('#tabs').tab();
+            if(window.location.hash != "") {
+                  $('a[href="' + window.location.hash + '"]').click()
+            }
+          });
+
+    </script>
+{% endblock %}

app/templates/selectConsumableForVehicle.html

@@ -0,0 +1,19 @@
+{% extends "layout.html" %}
+
+{% block body %}
+<div class="col-md-2" ></div>
+<div class="col-md-8">
+    <div class="panel panel-default">
+        <div class="panel-body">
+            <h3>Select Consumable for '{{ vehicle.name }}'</h3>
+            <form class='form-horizontal' method="POST">
+                {{ form.hidden_tag() }}
+                {{ render_field_with_errors(form.consumable) }}
+                {{ render_field_with_errors(form.submit) }}
+            </form>
+        </div>
+    </div>
+</div>
+<div class="col-md-2" ></div>
+{% endblock %}
+

app/templates/statistics.html

@@ -0,0 +1,175 @@
+{% extends "layout.html" %}
+
+{% macro chartScript(divId, data, unit)%}
+    {% set hash = divId | md5 %}
+
+    data_{{ hash }} = [{% for stop in data %}{
+                                "date": "{{stop.date}}",
+                                "value": {{stop.value}}
+                            }{% if not loop.last %},{%endif%}
+                            {% endfor%}
+                            ]
+    var chart_{{ hash }} = createChart('{{divId}}', data_{{ hash }}, '{{unit}}');
+
+    function zoom_chart_{{ hash }}() {
+        chart_{{ hash }}.zoomToIndexes(
+            chart_{{ hash }}.dataProvider.length - 40,
+            chart_{{ hash }}.dataProvider.length - 1
+        );
+    }
+
+    chart_{{ hash }}.addListener("rendered", zoom_chart_{{ hash }});
+
+    zoom_chart_{{ hash }}()
+{% endmacro %}
+
+{% macro nav_tab(id, text, active) %}
+    {#
+
+    #}
+    <li class="{% if active %}active{% endif %}">
+        <a href="#ref_{{id}}" id="id_{{id}}" data-toggle="tab" >
+            {{ text }}
+        </a>
+    </li>
+{% endmacro %}
+
+{% macro tab_pane(id, content, active) %}
+     <div class="tab-pane {% if active %}active{% endif %}" id="ref_{{ id }}">
+         {{ content }}
+     </div>
+{% endmacro %}
+
+{% macro chart(data, baseId, unit, link) %}
+    {% if data|length > 0 %}
+        {% set chartID = 'chart_' + baseId %}
+        <div id="{{ chartID }}" style="width:100%; height:500px;"></div>
+        <script type="text/javascript">
+            {{ chartScript(chartID, data, unit) }}
+        </script>
+    {% else %}
+        <div class="alert alert-warning" role="alert">
+            not enough data: <a href="{{ link }}">log a pitstop</a>?
+        </div>
+    {% endif %}
+{% endmacro %}
+
+{% macro print_consumable_table(consumable) %}
+    <table class="table table-striped table-bordered table-condensed">
+        <tr>
+            <th>Average Distance:</th>
+            <td>{{ consumable.average_distance | round(2) }} km</td>
+        </tr>
+        <tr>
+            <th>Amount fuelled:</th>
+            <td>{{ consumable.overall_amount | round(2) }} {{ consumable.unit }}</td>
+        </tr>
+        <tr>
+            <th>Average Amount fuelled:</th>
+            <td>{{ consumable.average_amount_fuelled | round(2) }} {{ consumable.unit }}</td>
+        </tr>
+        <tr>
+            <th>Average Amount used:</th>
+            <td>{{ consumable.average_amount_used | round(2) }} {{ consumable.unit }}/100km</td>
+        </tr>
+    </table>
+{% endmacro %}
+
+{% macro print_vehicle_table(vehicle) %}
+    <h3>{{vehicle.name}}</h3>
+    <div class="table-responsive">
+        <table class="table table-striped table-bordered table-condensed">
+            <tr>
+                <th>Logged Distance:</th>
+                <td>{{ vehicle.overall_distance | round(2) }} km</td>
+            </tr>
+            <tr>
+                <th>Logged Costs:</th>
+                <td>{{ vehicle.overall_costs | round(2) }} €</td>
+            </tr>
+        </table>
+    </div>
+{% endmacro %}
+
+{% macro tab_script(id) %}
+    <script type="text/javascript">
+        jQuery(document).ready(function ($) {
+            $('#{{id}}').tab();
+            if(window.location.hash != "") {
+                  $('a[href="' + window.location.hash + '"]').click()
+            }
+          });
+    </script>
+{% endmacro %}
+
+{% block body %}
+    <div id="content">
+        <ul id="vehicle_tabs" class="nav nav-tabs" data-tabs="tabs">
+            {% for vehicle in data %}
+                {{ nav_tab(vehicle.id, vehicle.name, loop.first) }}
+            {% endfor %}
+        </ul>
+        <div id="vehicle_content" class="tab-content ">
+            {% for vehicle in data %}
+                <div class="tab-pane {% if loop.first %}active{% endif %}" id="ref_{{vehicle.id}}">
+                    {{ print_vehicle_table(vehicle) }}
+                    <ul id="vehicle_{{vehicle.id}}_tabs" class="nav nav-tabs" data-tabs="tabs">
+                        {{ nav_tab(vehicle.id|string + '_odometer', 'Odometer', true) }}
+                        {% for consumable in vehicle.consumables %}
+                            {{ nav_tab(vehicle.id|string + '_' + consumable.id|string, consumable.name, false) }}
+                        {% endfor %}
+                    </ul>
+                    <div id="vehicle_{{vehicle.id}}_content" class="tab-content ">
+                        {{ tab_pane(
+                            vehicle.id|string + '_odometer',
+                            chart(
+                                vehicle.odometers,
+                                'ref_' + vehicle.id|string + '_odometer',
+                                'km',
+                                url_for('select_consumable_for_new_pitstop', vid=vehicle.id)
+                            ),
+                            true
+                            )
+                        }}
+                        {% for consumable in vehicle.consumables %}
+                            <div class="tab-pane" id="ref_{{vehicle.id}}_{{consumable.id}}">
+                                {{ print_consumable_table(consumable) }}
+                                <ul id="consumable_{{vehicle.id}}_{{consumable.id}}_tabs" class="nav nav-tabs" data-tabs="tabs">
+                                    {{ nav_tab(vehicle.id|string + '_' + consumable.id|string + '_consumption', 'Consumption', true) }}
+                                    {{ nav_tab(vehicle.id|string + '_' + consumable.id|string + '_amount', 'Amount', false) }}
+                                </ul>
+                                <div id="consumable_{{vehicle.id}}_{{consumable.id}}_content" class="tab-content ">
+                                    {{ tab_pane(
+                                        vehicle.id|string + '_' + consumable.id|string + '_consumption',
+                                        chart(
+                                            consumable.average_amount,
+                                            'ref_' + vehicle.id|string + '_' + consumable.id|string + '_consumption',
+                                            consumable.unit + '/100km',
+                                            url_for('create_pit_stop_form', vid=vehicle.id, cid=consumable.id)
+                                            ),
+                                        true
+                                        )
+                                    }}
+                                    {{ tab_pane(
+                                        vehicle.id|string + '_' + consumable.id|string + '_amount',
+                                        chart(
+                                            consumable.amounts,
+                                            'ref_' + vehicle.id|string + '_' + consumable.id|string + '_amount',
+                                            consumable.unit,
+                                            url_for('create_pit_stop_form', vid=vehicle.id, cid=consumable.id)
+                                            ),
+                                        false
+                                        )
+                                    }}
+                                </div>
+                                {{ tab_script('vehicle_' + vehicle.id|string + '_' + consumable.id|string + '_tabs') }}
+                            </div>
+                        {% endfor %}
+                    </div>
+                    {{ tab_script('vehicle_' + vehicle.id|string + '_tabs') }}
+                </div>
+            {% endfor %}
+        </div>
+        {{ tab_script('vehicle_tabs') }}
+    </div>
+{% endblock %}

app/tools.py

@@ -0,0 +1,177 @@
+import logging
+from datetime import date
+
+from .entities import Pitstop
+
+
+class ConsumableStats:
+    def __init__(self, vehicle, consumable):
+        self.name = consumable.name
+        self.id = consumable.id
+        self.unit = consumable.unit
+        self.overall_amount = 0
+        self.average_distance = 0
+        self.average_amount_fuelled = 0
+        self.average_amount_used = 0
+        self.average_amount = []
+        self.amounts = []
+
+        pitstops = [stop for stop in vehicle.pitstops if stop.consumable_id == consumable.id]
+        pitstop_count = len(pitstops)
+
+        if pitstop_count > 0:
+            for pitstop in pitstops:
+                self.overall_amount += pitstop.amount
+                self.amounts.append(StatsEvent(pitstop.date, pitstop.amount))
+            self.average_amount_fuelled = self.overall_amount / pitstop_count
+        if pitstop_count > 1:
+            overall_distance = vehicle.pitstops[-1].odometer - vehicle.pitstops[0].odometer
+            self.average_distance = overall_distance / (pitstop_count - 1)
+            self.average_amount_used = 100 * (self.overall_amount - pitstops[0].amount) / overall_distance
+            for index in range(1, pitstop_count):
+                last_ps = pitstops[index - 1]
+                current_ps = pitstops[index]
+                self.average_amount.append(
+                    StatsEvent(
+                        current_ps.date,
+                        round(100 * current_ps.amount/(current_ps.odometer - last_ps.odometer), 2)))
+
+
+class VehicleStats:
+    def __init__(self, vehicle):
+        self.name = vehicle.name
+        self.id = vehicle.id
+        self.overall_distance = 0
+        self.overall_costs = 0
+        self.consumables = []
+        self.odometers = []
+
+        for consumable in vehicle.consumables:
+            self.consumables.append(ConsumableStats(vehicle, consumable))
+
+        pitstop_count = len(vehicle.pitstops)
+
+        if pitstop_count > 0:
+             for pitstop in vehicle.pitstops:
+                 self.odometers.append(StatsEvent(pitstop.date, pitstop.odometer))
+                 if pitstop.costs is not None:
+                    self.overall_costs += pitstop.costs
+
+        if pitstop_count > 1:
+            self.overall_distance = vehicle.pitstops[-1].odometer - vehicle.pitstops[0].odometer
+
+
+class StatsEvent:
+    def __init__(self, date, value):
+        self.date = date
+        self.value = value
+
+
+def db_log_add(entity):
+    logging.info('db_add: %s' % str(entity))
+
+
+def db_log_delete(entity):
+    logging.info('db_delete: %s' % str(entity))
+
+
+def db_log_update(entity):
+    logging.info('db_update: %s' % str(entity))
+
+
+def check_vehicle_name_is_unique(current_user, name_field):
+    """
+    Checks if the vehicle name given in the name_field is unique for the vehicles of the current user. An error is added
+    to the field it the name is not unique.
+
+    :param current_user: the user currently logged in
+    :param name_field: the form field to enter the name to
+    :return: True if the name is unique, False otherwise.
+    """
+    vehicle_name = name_field.data
+    for vehicle in current_user.vehicles:
+        if vehicle.name == vehicle_name:
+            name_field.default = vehicle_name
+            name_field.errors.append('Vehicle "%s" already exists.' % vehicle_name)
+            return False
+    return True
+
+
+def get_latest_pitstop_for_vehicle(vehicle_id):
+    """
+    return the latest pit stop for the vehicle with the given id.
+    :param vehicle_id: the id of the vehicle
+    :return: the latest pitstop or None if no pitstop exists
+    """
+    latest_pitstop = Pitstop.query\
+        .filter(Pitstop.vehicle_id == vehicle_id)\
+        .order_by(Pitstop.id.desc())\
+        .first()
+    return latest_pitstop
+
+
+def get_latest_pitstop_for_vehicle_and_consumable(vehicle_id, consumable_id):
+    """
+    return the latest pit stop for the vehicle and consumable with the given ids.
+    :param vehicle_id: the id of the vehicle
+    :param consumable_id: the id of the consumable
+    :return: the latest pitstop or None if no pitstop exists
+    """
+    latest_pitstop_consumable = Pitstop.query\
+        .filter(Pitstop.vehicle_id == vehicle_id)\
+        .filter(Pitstop.consumable_id == consumable_id)\
+        .order_by(Pitstop.id.desc())\
+        .first()
+    return latest_pitstop_consumable
+
+
+def compute_lower_limits_for_new_pitstop(latest_pitstop, last_pitstop_consumable, consumable_id):
+    """
+    This function figures out the lower limits for date and odometer of a new pitstop.
+    :param latest_pitstop:
+    :param last_pitstop_consumable:
+    :param consumable_id:
+    :return:
+    """
+    odometer = 0
+    date_of_pitstop = date(1970, 1, 1)
+    amount = 0
+    costs = 0
+
+    if latest_pitstop is not None:
+        odometer = latest_pitstop.odometer
+        date_of_pitstop = latest_pitstop.date
+
+    if last_pitstop_consumable is not None:
+        amount = last_pitstop_consumable.amount
+        costs = last_pitstop_consumable.costs
+
+    return Pitstop(odometer, amount, date_of_pitstop, costs, consumable_id)
+
+
+    # if latest_pitstop is not None:
+    #     if last_pitstop_consumable is not None and last_pitstop_consumable != latest_pitstop:
+    #         if latest_pitstop.id > last_pitstop_consumable.id:
+    #             return Pitstop(latest_pitstop.odometer,
+    #                            last_pitstop_consumable.overall_amount,
+    #                            latest_pitstop.date,
+    #                            last_pitstop_consumable.costs,
+    #                            consumable_id)
+    #         else:
+    #             return Pitstop(last_pitstop_consumable.odometer,
+    #                            last_pitstop_consumable.overall_amount,
+    #                            last_pitstop_consumable.date,
+    #                            last_pitstop_consumable.costs,
+    #                            consumable_id)
+    #     else:
+    #         # either only one pitstop exists or both are the same
+    #         litres = 0
+    #         costs = 0
+    #         if latest_pitstop.consumable_id == last_pitstop_consumable.consumable_id:
+    #             litres = latest_pitstop.overall_amount
+    #             costs = latest_pitstop.costs
+    #         return Pitstop(latest_pitstop.odometer, litres, latest_pitstop.date, costs, consumable_id)
+    # else:
+    #     # No existing pitstop at all: insert fake data
+    #     return Pitstop(0, 0, date(1970, 1, 1), 0, None)
+

config.py

@@ -0,0 +1,46 @@
+import os
+basedir = os.path.abspath(os.path.dirname(__file__))
+
+
+class Config:
+    SECURITY_PASSWORD_HASH = 'pbkdf2_sha512'
+    SECURITY_REGISTERABLE = True
+    SECURITY_CHANGEABLE = True
+    SECURITY_RECOVERABLE = True
+    SECURITY_PASSWORD_SALT = os.environ.get('SECURITY_PASSWORD_SALT') or 'SOME SECRET STRING'
+    SECRET_KEY = os.environ.get('SECRET_KEY') or 'SOME SECRET STRING'
+    SECURITY_EMAIL_SENDER = 'no-reply@lusiardi.de'
+    SQLALCHEMY_TRACK_MODIFICATIONS = False
+    MAIL_SERVER = 'mail.nerd2nerd.org'
+    MAIL_PORT = 25
+    MAIL_USE_TLS = True
+    MAIL_USE_SSL = False
+    MAIL_USERNAME = os.environ.get('MAIL_USERNAME')
+    MAIL_PASSWORD = os.environ.get('MAIL_PASSWORD')
+
+    @staticmethod
+    def init_app(app):
+        pass
+
+
+class DevelopmentConfig(Config):
+    SECURITY_SEND_REGISTER_EMAIL = False
+    DEBUG = True
+    SQLALCHEMY_DATABASE_URI = 'mysql+pymysql://root:%s@database/pitstops_old' % (os.environ['DATABASE_ENV_MYSQL_ROOT_PASSWORD'])
+
+
+class TestingConfig(Config):
+    TESTING = True
+    SQLALCHEMY_DATABASE_URI = 'sqlite:///' + os.path.join(basedir, 'data_testing.sqlite')
+
+
+class ProductionConfig(Config):
+    SQLALCHEMY_DATABASE_URI = 'sqlite:///' + os.path.join(basedir, 'data.sqlite')
+
+
+config = {
+    'development': DevelopmentConfig,
+    'testing': TestingConfig,
+    'production': ProductionConfig,
+    'default': DevelopmentConfig
+}

database_upgrades/upgrade_cathrine_to_danielle.sql

@@ -0,0 +1,28 @@
+CREATE TABLE IF NOT EXISTS `consumable` (
+  `id` int(11) NOT NULL AUTO_INCREMENT,
+  `name` varchar(255) DEFAULT NULL,
+  `unit` varchar(255) DEFAULT NULL,
+  PRIMARY KEY (`id`),
+  UNIQUE KEY `name` (`name`)
+) ENGINE=InnoDB AUTO_INCREMENT=31 DEFAULT CHARSET=latin1;
+
+INSERT INTO `consumable`(`id`, `name`, `unit`) VALUES (1, 'Super E5', 'l');
+
+CREATE TABLE IF NOT EXISTS `vehicles_consumables` (
+  `vehicle_id` int(11) DEFAULT NULL,
+  `consumable_id` int(11) DEFAULT NULL,
+  KEY `vehicle_id` (`vehicle_id`),
+  KEY `consumable_id` (`consumable_id`),
+  CONSTRAINT `vehicles_consumables_ibfk_1` FOREIGN KEY (`vehicle_id`) REFERENCES `vehicle` (`id`),
+  CONSTRAINT `vehicles_consumables_ibfk_2` FOREIGN KEY (`consumable_id`) REFERENCES `consumable` (`id`)
+) ENGINE=InnoDB DEFAULT CHARSET=latin1;
+
+ALTER TABLE `pitstop` ADD COLUMN `costs` decimal(5,2) DEFAULT NULL;
+
+ALTER TABLE `pitstop` CHANGE `litres` `amount`;
+
+ALTER TABLE `pitstop` ADD COLUMN `consumable_id` int(11);
+ALTER TABLE `pitstop` ADD FOREIGN KEY (`consumable_id`) REFERENCES `consumable` (`id`);
+UPDATE `pitstop` set `consumable_id`=1;
+
+INSERT INTO `vehicles_consumables`(`vehicle_id`, `consumable_id`) SELECT `id`, 1 FROM `vehicle`;

main.py

@@ -1,5 +1,5 @@
 import os
-from rollerverbrauch import app
+from app import app
 import logging