def register(self, identity):
"""Show application form and submit membership requests.
:param obj identity: User identity
"""
# check if user is signed in
username = self.username(identity)
if username is None:
self.logger.info("User is not signed in")
abort(403)
session = self.session()
# find user
user = session.query(self.User).filter_by(name=username).first()
if user is None:
self.logger.warning("Could not find user '%s'" % username)
abort(404)
# query registrable groups
query = session.query(self.RegistrableGroup) \
.order_by(self.RegistrableGroup.title)
# eager load relations
query = query.options(joinedload(self.RegistrableGroup.group))
registrable_groups = query.all()
registrable_groups_titles = {}
# query pending registration requests for this user
query = session.query(self.RegistrationRequest) \
.filter_by(user_id=user.id, pending=True)
pending_requests = query.all()
pending_registrable_ids = [
r.registrable_group_id for r in pending_requests
]
# query group memberships
user_groups = user.sorted_groups
user_group_ids = [g.id for g in user_groups]
session.close()
# create form
form = RegistrationForm()
form.registrable_groups = []
form.groups.choices = []
form.unsubscribe_groups.choices = []
for registrable_group in registrable_groups:
pending = registrable_group.id in pending_registrable_ids
member = registrable_group.group_id in user_group_ids
# add registrable group
form.registrable_groups.append({
'id': registrable_group.id,
'title': registrable_group.title,
'description': registrable_group.description,
'pending': pending,
'member': member
})
# add lookup for registrable group titles
registrable_groups_titles[registrable_group.id] = \
registrable_group.title
if not pending:
if member:
# add unsubscribable group choice
form.unsubscribe_groups.choices.append(
(registrable_group.id, registrable_group.title)
)
else:
# add registrable group choice
form.groups.choices.append(
(registrable_group.id, registrable_group.title)
)
if form.is_submitted():
if form.validate():
if form.groups.data or form.unsubscribe_groups.data:
# use same creation time for all requests in the form
created_at = datetime.utcnow()
session = self.session()
# create registration requests
for registrable_group_id in form.groups.data:
registration_request = self.RegistrationRequest(
user_id=user.id,
registrable_group_id=registrable_group_id,
unsubscribe=False,
pending=True,
created_at=created_at
)
session.add(registration_request)
# create unsubscribe requests
for registrable_group_id in form.unsubscribe_groups.data:
registration_request = self.RegistrationRequest(
user_id=user.id,
registrable_group_id=registrable_group_id,
unsubscribe=True,
pending=True,
created_at=created_at
)
session.add(registration_request)
session.commit()
session.close()
self.send_admin_notification(
user, form, registrable_groups_titles
)
flash(self.i18n('registration.flash.submitted'), 'success')
return redirect(url_for('register'))
else:
flash(
self.i18n('registration.flash.no_group_selected'),
'warning'
)
else:
self.logger.warning(form.errors)
flash(self.i18n('registration.flash.failed'), 'error')
return render_template(
'registration.html', title=self.i18n('registration.title'),
form=form, username=user.name
)
