Backoffice erreur - Site sans photo

[camillemonchicourt]

Si un site n'a pas de photo, alors le backoffice est en erreur et la liste des sites ne se charge pas. Un site devrait pouvoir ne pas avoir de photo.

Les logs indiquent :

[2019-05-16 18:48:12,120] ERROR in app: Exception on /api/sites [GET]
Traceback (most recent call last):
  File "/home/geopaysages/geopaysages/venv/lib/python3.5/site-packages/flask/app.py", line 2292, in wsgi_app
    response = self.full_dispatch_request()
  File "/home/geopaysages/geopaysages/venv/lib/python3.5/site-packages/flask/app.py", line 1815, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File "/home/geopaysages/geopaysages/venv/lib/python3.5/site-packages/flask_cors/extension.py", line 161, in wrapped_function
    return cors_after_request(app.make_response(f(*args, **kwargs)))
  File "/home/geopaysages/geopaysages/venv/lib/python3.5/site-packages/flask/app.py", line 1718, in handle_user_exception
    reraise(exc_type, exc_value, tb)
  File "/home/geopaysages/geopaysages/venv/lib/python3.5/site-packages/flask/_compat.py", line 35, in reraise
    raise value
  File "/home/geopaysages/geopaysages/venv/lib/python3.5/site-packages/flask/app.py", line 1813, in full_dispatch_request
    rv = self.dispatch_request()
  File "/home/geopaysages/geopaysages/venv/lib/python3.5/site-packages/flask/app.py", line 1799, in dispatch_request
    return self.view_functions[rule.endpoint](**req.view_args)
  File "/home/geopaysages/geopaysages/backend/api.py", line 35, in returnAllSites
    id_photo=site.get('t_photos')[0])
IndexError: list index out of range

[xavyeah39]

Corrigé en v1.3.0