def wfs_session(layer=None):
user = current_user
wfs_session = WFSSession.by_active_user_layer(layer, user)
if not wfs_session:
try:
wfs_layers, wfs_layer_token = create_wfs(user, [layer])
except MissingSchemaError:
flash(_('layer unknown or without schema'))
abort(404)
wfs_session = WFSSession(user=user, layer=layer, url=url_for('.tinyows_wfs', token=wfs_layer_token, _external=True))
db.session.add(wfs_session)
db.session.commit()
return render_template('maps/wfs_session.html', wfs_session=wfs_session)
