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from flask import Flask, session, request, redirect, url_for, render_template
# local modules
from models import db, Project, Person, Bill
from forms import CreationForm, AuthenticationForm, BillForm
from utils import get_billform_for, requires_auth
# create the application, initialize stuff
app = Flask(__name__)
@app.route("/")
def home():
return "this is the homepage"
@app.route("/create")
def create_project():
form = CreationForm()
if 'project_id' in request.values:
form.name.data = request.values['project_id']
if request.method == "POST":
if form.validate():
# populate object & redirect
pass
return render_template("create_project.html", form=form)
@app.route("/<string:project_id>/")
@requires_auth
def list_bills(project):
bills = Bill.query.order_by(Bill.id.asc())
return render_template("list_bills.html",
bills=bills, project=project)
@app.route("/<string:project_id>/authenticate", methods=["GET", "POST"])
def authenticate(project_id, redirect_url=None):
project = Project.query.get(project_id)
redirect_url = redirect_url or url_for("list_bills", project_id=project_id)
# if credentials are already in session, redirect
if project_id in session and project.password == session[project_id]:
return redirect(redirect_url)
# else create the form and process it
form = AuthenticationForm()
if request.method == "POST":
if form.validate():
if not form.password.data == project.password:
form.errors['password'] = ["The password is not the right one"]
else:
session[project_id] = form.password.data
session.update()
from ipdb import set_trace; set_trace()
return redirect(redirect_url)
return render_template("authenticate.html", form=form, project=project)
@app.route("/<string:project_id>/add", methods=["GET", "POST"])
@requires_auth
def add_bill(project):
form = get_billform_for(project.id)
if request.method == 'POST':
if form.validate():
bill = Bill()
form.populate_obj(bill)
for ower in form.payed_for.data:
ower = BillOwer(name=ower)
db.session.add(ower)
bill.owers.append(ower)
db.session.add(bill)
db.session.commit()
flash("The bill have been added")
return redirect(url_for('list_bills'))
return render_template("add_bill.html", form=form, project=project)
@app.route("/<string:project_id>/compute")
@requires_auth
def compute_bills(project):
"""Compute the sum each one have to pay to each other and display it"""
balances, should_pay, should_receive = {}, {}, {}
# for each person, get the list of should_pay other have for him
for name, void in PAYER_CHOICES:
bills = Bill.query.join(BillOwer).filter(Bill.processed==False)\
.filter(BillOwer.name==name)
for bill in bills.all():
if name != bill.payer:
should_pay.setdefault(name, 0)
should_pay[name] += bill.pay_each()
should_receive.setdefault(bill.payer, 0)
should_receive[bill.payer] += bill.pay_each()
for name, void in PAYER_CHOICES:
balances[name] = should_receive.get(name, 0) - should_pay.get(name, 0)
return render_template("compute_bills.html", balances=balances, project=project)
@app.route("/<string:project_id>/reset")
@requires_auth
def reset_bills(project):
"""Reset the list of bills"""
# get all the bills which are not processed
bills = Bill.query.filter(Bill.processed == False)
for bill in bills:
bill.processed = True
db.session.commit()
return redirect(url_for('list_bills'))
@app.route("/<string:project_id>/delete/<int:bill_id>")
@requires_auth
def delete_bill(project, bill_id):
Bill.query.filter(Bill.id == bill_id).delete()
BillOwer.query.filter(BillOwer.bill_id == bill_id).delete()
db.session.commit()
flash("the bill was deleted")
return redirect(url_for('list_bills'))
@app.route("/debug/")
def debug():
from ipdb import set_trace; set_trace()
return render_template("debug.html")
def main():
app.config.from_object("default_settings")
db.init_app(app)
db.app = app
db.create_all()
app.run(host="0.0.0.0", debug=True)
if __name__ == '__main__':
main()
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