from django.conf import settings

from social_auth.backends import get_backends

def check_access(user, obj):

    check_meth = getattr(obj, 'check_access', False)

    if check_meth:

        return check_meth(user)

    else:

        return user.is_staff

def social_list():

    """Start list process"""

    l = []

    # We list all wanted backends among all availables 

    for backend in get_backends():

        for backend_str in settings.AUTHENTICATION_BACKENDS:

            if backend in backend_str:

                l.append(backend)

    return l