rollerverbrauch/main.py

88 lines
2.7 KiB
Python

import sqlite3
from datetime import datetime
from flask import Flask
from flask import render_template
from flask import url_for
from flask import request, redirect, g
app = Flask(__name__)
DATABASE = '/tmp/rollerverbrauch.db'
DEBUG = True
SECRET_KEY = 'development key'
USERNAME = 'admin'
PASSWORD = 'default'
app.config.from_object(__name__)
def connect_db():
result = sqlite3.connect(app.config['DATABASE'])
return result
@app.before_request
def before_request():
g.db = connect_db()
@app.teardown_request
def teardown_request(exception):
db = getattr(g, 'db', None)
if db is not None:
db.close()
@app.route('/')
def index():
#data = {'pitstopsUrl': url_for('getPitStops')}
#return render_template('index.html', data=data)
return redirect(url_for('getPitStops'))
@app.route('/pitstops', methods=['POST'])
def createPitStop():
date = request.form['date']
odometer = request.form['odometer']
litres = request.form['litres']
# error checking here
addPitStop(date, odometer, litres)
return redirect(url_for('getPitStops'))
@app.route('/pitstops/createForm', methods=['GET'])
def createPitStopForm():
data = {'last':getLastPitStop(), 'error': None}
return render_template('newPitStopForm.html', data=data)
@app.route('/pitstops', methods=['GET'])
def getPitStops():
data = {'pitstops': preparePitStops(getAllPitStops())}
return render_template('pitstops.html', data=data)
def preparePitStops(pitstops):
for index in range(1, len(pitstops)):
last = pitstops[index - 1]
curr = pitstops[index]
curr['distance'] = curr['odometer'] - last['odometer']
curr['average'] = round(100 * curr['litres']/curr['distance'], 2)
last_date = datetime.strptime(last['date'], '%Y-%m-%d')
curr_date = datetime.strptime(curr['date'], '%Y-%m-%d')
curr['days'] = (curr_date - last_date).days
return pitstops
def getLastPitStop():
cur = g.db.execute('select date, odometer, litres from pitstops order by date desc limit 1')
pitstops = [dict(date=row[0], odometer=row[1], litres=row[2]) for row in cur.fetchall()]
if len(pitstops) == 0:
return {'date': datetime.datetime.strftime(datetime.datetime.now(), '%Y-%m-%d'), 'odometer': 0, 'litres': 0}
return pitstops[0]
def getAllPitStops():
cur = g.db.execute('select date, odometer, litres from pitstops order by id asc')
pitstops = [dict(date=row[0], odometer=row[1], litres=row[2]) for row in cur.fetchall()]
return pitstops
def addPitStop(date, odometer, litres):
g.db.execute('insert into pitstops (date, odometer, litres) values (?, ?, ?)', [date, odometer, litres])
g.db.commit()
if __name__ == '__main__':
app.run(debug=True)