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devicehub-teal/ereuse_devicehub/views.py

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import flask
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from flask import Blueprint, g
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from flask.views import View
from flask_login import current_user, login_required, login_user, logout_user
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from sqlalchemy import or_
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from ereuse_devicehub import __version__, messages
from ereuse_devicehub.db import db
from ereuse_devicehub.forms import LoginForm, PasswordForm
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from ereuse_devicehub.resources.action.models import Trade
from ereuse_devicehub.resources.lot.models import Lot
from ereuse_devicehub.resources.user.models import User
from ereuse_devicehub.utils import is_safe_url
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core = Blueprint('core', __name__)
@core.route("/")
def index():
return flask.redirect(flask.url_for('core.login'))
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class LoginView(View):
methods = ['GET', 'POST']
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template_name = 'ereuse_devicehub/user_login.html'
def dispatch_request(self):
form = LoginForm()
if form.validate_on_submit():
# Login and validate the user.
# user should be an instance of your `User` class
user = User.query.filter_by(email=form.email.data).first()
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login_user(user, remember=form.remember.data)
next_url = flask.request.args.get('next')
# is_safe_url should check if the url is safe for redirects.
# See http://flask.pocoo.org/snippets/62/ for an example.
if not is_safe_url(flask.request, next_url):
return flask.abort(400)
return flask.redirect(next_url or flask.url_for('inventory.devicelist'))
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context = {'form': form, 'version': __version__}
return flask.render_template('ereuse_devicehub/user_login.html', **context)
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class LogoutView(View):
def dispatch_request(self):
logout_user()
return flask.redirect(flask.url_for('core.login'))
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class GenericMixin(View):
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methods = ['GET']
decorators = [login_required]
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def get_lots(self):
return (
Lot.query.outerjoin(Trade)
.filter(
or_(
Trade.user_from == g.user,
Trade.user_to == g.user,
Lot.owner_id == g.user.id,
)
)
.distinct()
)
def get_context(self):
self.context = {
'lots': self.get_lots(),
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'version': __version__,
}
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return self.context
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class UserProfileView(GenericMixin):
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decorators = [login_required]
template_name = 'ereuse_devicehub/user_profile.html'
def dispatch_request(self):
self.get_context()
self.context.update(
{
'current_user': current_user,
'password_form': PasswordForm(),
}
)
return flask.render_template(self.template_name, **self.context)
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class UserPasswordView(View):
methods = ['POST']
decorators = [login_required]
def dispatch_request(self):
form = PasswordForm()
db.session.commit()
if form.validate_on_submit():
form.save(commit=False)
messages.success('Reset user password successfully!')
else:
messages.error('Error modifying user password!')
db.session.commit()
return flask.redirect(flask.url_for('core.user-profile'))
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core.add_url_rule('/login/', view_func=LoginView.as_view('login'))
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core.add_url_rule('/logout/', view_func=LogoutView.as_view('logout'))
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core.add_url_rule('/profile/', view_func=UserProfileView.as_view('user-profile'))
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core.add_url_rule('/set_password/', view_func=UserPasswordView.as_view('set-password'))