adds update & delete for consumables

adds functionality to
* update
* delete
for consumables

app/rollerverbrauch/__init__.py

@@ -33,7 +33,9 @@ from rollerverbrauch.forms import \
     DeleteAccountForm, \
     DeletePitStopForm, \
     EditPitstopForm, \
-    CreateConsumableForm
+    CreateConsumableForm, \
+    EditConsumableForm, \
+    DeletConsumableForm
 
 from rollerverbrauch.entities import \
     User, \
@@ -300,10 +302,12 @@ def get_manual():
 def get_admin_page():
     users = User.query.all()
     consumables = Consumable.query.all()
+    for consumable in consumables:
+        consumable.in_use = Pitstop.query.filter(Pitstop.consumable_id == consumable.id).count() > 0
     return render_template('admin.html', users=users, consumables=consumables)
 
 
-@app.route('/admin/create_consumable', methods=['GET', 'POST'])
+@app.route('/admin/consumable/create', methods=['GET', 'POST'])
 @login_required
 def create_consumable():
     form = CreateConsumableForm()
@@ -329,6 +333,57 @@ def create_consumable():
     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():

app/rollerverbrauch/entities.py

@@ -66,19 +66,22 @@ class Pitstop(db.Model):
     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'))
+    consumable = db.relationship('Consumable')
     litres = 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'))
 
-    def __init__(self, odometer, litres, date, costs):
+    def __init__(self, odometer, litres, date, costs, consumable_id):
         self.odometer = odometer
         self.litres = litres
         self.date = date
         self.costs = costs
+        self.consumable_id = consumable_id
 
     def __repr__(self):
-        return '<Pitstop odometer="%r" litres="%r" date="%r" vehicle_id="%r">' % \
-               (self.odometer, self.litres, self.date, self.vehicle_id)
+        return '<Pitstop odometer="%r" litres="%r" date="%r" vehicle_id="%r" consumable_id="%r">' % \
+               (self.odometer, self.litres, self.date, self.vehicle_id, self.consumable_id)
 
 
 class Consumable(db.Model):

app/rollerverbrauch/forms.py

@@ -84,3 +84,12 @@ class CreateConsumableForm(Form):
     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/templates/admin.html

@@ -42,6 +42,14 @@
                             {{ consumable.unit }}
                         </td>
                         <td>
+                            <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>
+                            {% 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 %}
                         </td>
                     </tr>
                 {% endfor %}

app/rollerverbrauch/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/rollerverbrauch/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 %}