Source code for boardinghouse.context_processors

from __future__ import unicode_literals
import django


def schemata(request):
    """
    A Django context_processor that provides access to the
    logged-in user's visible schemata, and selected schema.

    Adds the following variables to the context:

        `schemata`: all available schemata this user has
        `schema_choices`: (schema, name) pairs of available schemata
        `selected_schema`: the currenly selected schema name

    """
    if django.VERSION < (1, 10):
        if request.user.is_anonymous():
            return {}
    else:
        if request.user.is_anonymous:
            return {}

    return {
        'schemata': request.user.visible_schemata,
        'schema_choices': request.user.visible_schemata.values_list('schema', 'name').distinct(),
        'selected_schema': request.session.get('schema'),
    }