def filter_apps_feed_element(self, request, feed_element):
"""
Runs multiple filters for apps of feed elements.
Each filter will return None if all of the apps becomes excluded.
"""
# Don't filter device/regions if filtering == 0.
filtering = request.QUERY_PARAMS.get('filtering', '1') != '0'
if feed_element.get('apps') == []:
# No empty collections.
return
if feed_element and filtering:
# Device filtering.
device = DEVICE_CHOICES_IDS.get(request.QUERY_PARAMS.get('device'))
device = applications.REVERSE_DEVICE_LOOKUP.get(device)
if device and device != applications.DEVICE_DESKTOP.api_name:
# TODO: remove desktop clause when we want desktop filtering.
# If dev not in request, then we don't filter.
feed_element = self._filter(device, 'device_types',
feed_element, check_member=True)
if feed_element and filtering:
# Region filtering.
region = request.QUERY_PARAMS.get('region')
if region and region in dict(mkt.regions.REGIONS_CHOICES_SLUG):
# Turn list of region objects into list of slugs.
feed_element = self._filter(region, 'regions',
feed_element, check_member=True,
map_field='slug')
if feed_element:
# Status public filtering.
feed_element = self._filter(amo.STATUS_PUBLIC, 'status',
feed_element)
if feed_element and filtering:
if (feed_element.get('apps') and
feed_element['app_count'] < feed.MIN_APPS_COLLECTION):
# Enforce minimum apps on collections.
feed_element = None
if feed_element:
feed_element = self._filter(False, 'is_disabled', feed_element)
if feed_element:
feed_element = self._pop_filter_fields(feed_element)
return feed_element
def clean_device(self):
return DEVICE_CHOICES_IDS.get(self.cleaned_data.get('device'))
