prompt: We are currently solving the following issue within our repository. Here is the issue text:
  --- BEGIN ISSUE ---
  Fix Snippets ICal AttributeError exception 
  Snippets ICal feed raises:
  
  `AttributeError: 'ASRSnippet' object has no attribute 'locales'`
  
  Fix the error and add tests catch this on the unit test level. We did catch this on the acceptance tests level though :sweat_smile: 
  
  
  --- END ISSUE ---
  
  Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
  --- BEGIN FILES ---
  Path: `snippets/base/urls.py`
  Content:
  ```
  1 from django.urls import path
  2 
  3 from watchman import views as watchman_views
  4 
  5 from snippets.base import views
  6 from snippets.base import feed
  7 
  8 
  9 urlpatterns = [
  10     path('', views.HomeView.as_view()),
  11     path('<int:startpage_version>/<name>/<version>/<appbuildid>/<build_target>/'
  12          '<locale>/<channel>/<os_version>/<distribution>/<distribution_version>/',
  13          views.fetch_snippets, name='base.fetch_snippets'),
  14     path('preview/', views.preview_snippet, name='base.preview'),
  15     path('preview-asr/<str:uuid>/', views.preview_asr_snippet, name='asr-preview'),
  16     path('show/<int:snippet_id>/', views.show_snippet, name='base.show'),
  17     path('show/uuid/<str:snippet_id>/', views.show_snippet, {'uuid': True}, name='base.show_uuid'),
  18     path('csp-violation-capture', views.csp_violation_capture, name='csp-violation-capture'),
  19     path('healthz/', watchman_views.ping, name='watchman.ping'),
  20     path('readiness/', watchman_views.status, name='watchman.status'),
  21     path('feeds/snippets.ics', feed.SnippetsFeed()),
  22 ]
  23
  ```
  
  Path: `snippets/base/feed.py`
  Content:
  ```
  1 import operator
  2 from datetime import timedelta
  3 from distutils.util import strtobool
  4 from textwrap import dedent
  5 from urllib.parse import urlparse
  6 
  7 from django.conf import settings
  8 from django.db.models import Q
  9 
  10 import django_filters
  11 from django_ical.views import ICalFeed
  12 
  13 from snippets.base import models
  14 
  15 
  16 class ASRSnippetFilter(django_filters.FilterSet):
  17     name = django_filters.CharFilter(lookup_expr='icontains')
  18     locale = django_filters.CharFilter(method='filter_locale')
  19     only_scheduled = django_filters.ChoiceFilter(
  20         method='filter_scheduled', choices=(('true', 'Yes'),
  21                                             ('false', 'No'),
  22                                             ('all', 'All')))
  23 
  24     def filter_locale(self, queryset, name, value):
  25         if not value:
  26             return queryset
  27 
  28         locales = value.split(',')
  29         return queryset.filter(
  30             operator.or_(
  31                 *[Q(locale__code=',{},'.format(locale)) for locale in locales]
  32             )
  33         )
  34 
  35     def filter_scheduled(self, queryset, name, value):
  36         if value == 'all':
  37             return queryset
  38 
  39         value = strtobool(value)
  40 
  41         if value:
  42             return queryset.exclude(publish_start=None, publish_end=None)
  43 
  44         return queryset.filter(publish_start=None, publish_end=None)
  45 
  46     class Meta:
  47         model = models.ASRSnippet
  48         fields = []
  49 
  50 
  51 class SnippetsFeed(ICalFeed):
  52     timezone = 'UTC'
  53     title = 'Snippets'
  54 
  55     def __call__(self, request, *args, **kwargs):
  56         self.request = request
  57         return super().__call__(request, *args, **kwargs)
  58 
  59     @property
  60     def product_id(self):
  61         return '//{}/Snippets?{}'.format(urlparse(settings.SITE_URL).netloc,
  62                                          self.request.GET.urlencode())
  63 
  64     def items(self):
  65         queryset = (models.ASRSnippet.objects
  66                     .filter(for_qa=False, status=models.STATUS_CHOICES['Published'])
  67                     .order_by('publish_start'))
  68         filtr = ASRSnippetFilter(self.request.GET, queryset=queryset)
  69         return filtr.qs
  70 
  71     def item_title(self, item):
  72         return item.name
  73 
  74     def item_link(self, item):
  75         return item.get_admin_url()
  76 
  77     def item_description(self, item):
  78         description = dedent('''\
  79         Channels: {}
  80         Locales: {}'
  81         Preview Link: {}
  82         '''.format(', '.join(item.channels),
  83                    ', '.join(item.locales.values_list('name', flat=True)),
  84                    item.get_preview_url()))
  85         return description
  86 
  87     def item_start_datetime(self, item):
  88         return item.publish_start or item.created
  89 
  90     def item_end_datetime(self, item):
  91         return item.publish_end or (self.item_start_datetime(item) + timedelta(days=365))
  92 
  93     def item_created(self, item):
  94         return item.created
  95 
  96     def item_updateddate(self, item):
  97         return item.modified
  98
  ```
  --- END FILES ---
  
  Please first localize the bug based on the issue statement, and then generate a patch according to the `git diff` format fenced by three backticks.
  
  Here is an example:
  
  ```diff
  diff --git a/examples/server_async.py b/examples/server_async.py
  --- a/examples/server_async.py
  +++ b/examples/server_async.py
  @@ -313,4 +313,4 @@
   
   
   if __name__ == "__main__":
  -    asyncio.run(run_async_server("."), debug=True)
  +    asyncio.run(run_async_server(), debug=True)
  diff --git a/examples/server_sync.py b/examples/server_sync.py
  --- a/examples/server_sync.py
  +++ b/examples/server_sync.py
  @@ -313,5 +313,5 @@
   
   
   if __name__ == "__main__":
  -    server = run_sync_server(".")
  +    server = run_sync_server()
       server.shutdown()
  
  ```
  
golden_diff: diff --git a/snippets/base/feed.py b/snippets/base/feed.py
  --- a/snippets/base/feed.py
  +++ b/snippets/base/feed.py
  @@ -77,10 +77,10 @@
       def item_description(self, item):
           description = dedent('''\
           Channels: {}
  -        Locales: {}'
  +        Locale: {}'
           Preview Link: {}
           '''.format(', '.join(item.channels),
  -                   ', '.join(item.locales.values_list('name', flat=True)),
  +                   item.locale,
                      item.get_preview_url()))
           return description
   
  diff --git a/snippets/base/urls.py b/snippets/base/urls.py
  --- a/snippets/base/urls.py
  +++ b/snippets/base/urls.py
  @@ -18,5 +18,5 @@
       path('csp-violation-capture', views.csp_violation_capture, name='csp-violation-capture'),
       path('healthz/', watchman_views.ping, name='watchman.ping'),
       path('readiness/', watchman_views.status, name='watchman.status'),
  -    path('feeds/snippets.ics', feed.SnippetsFeed()),
  +    path('feeds/snippets.ics', feed.SnippetsFeed(), name='ical-feed'),
   ]
  
verification_info: {"golden_diff": "diff --git a/snippets/base/feed.py b/snippets/base/feed.py\n--- a/snippets/base/feed.py\n+++ b/snippets/base/feed.py\n@@ -77,10 +77,10 @@\n     def item_description(self, item):\n         description = dedent('''\\\n         Channels: {}\n-        Locales: {}'\n+        Locale: {}'\n         Preview Link: {}\n         '''.format(', '.join(item.channels),\n-                   ', '.join(item.locales.values_list('name', flat=True)),\n+                   item.locale,\n                    item.get_preview_url()))\n         return description\n \ndiff --git a/snippets/base/urls.py b/snippets/base/urls.py\n--- a/snippets/base/urls.py\n+++ b/snippets/base/urls.py\n@@ -18,5 +18,5 @@\n     path('csp-violation-capture', views.csp_violation_capture, name='csp-violation-capture'),\n     path('healthz/', watchman_views.ping, name='watchman.ping'),\n     path('readiness/', watchman_views.status, name='watchman.status'),\n-    path('feeds/snippets.ics', feed.SnippetsFeed()),\n+    path('feeds/snippets.ics', feed.SnippetsFeed(), name='ical-feed'),\n ]\n", "issue": "Fix Snippets ICal AttributeError exception \nSnippets ICal feed raises:\r\n\r\n`AttributeError: 'ASRSnippet' object has no attribute 'locales'`\r\n\r\nFix the error and add tests catch this on the unit test level. We did catch this on the acceptance tests level though :sweat_smile: \r\n\n", "before_files": [{"content": "from django.urls import path\n\nfrom watchman import views as watchman_views\n\nfrom snippets.base import views\nfrom snippets.base import feed\n\n\nurlpatterns = [\n    path('', views.HomeView.as_view()),\n    path('<int:startpage_version>/<name>/<version>/<appbuildid>/<build_target>/'\n         '<locale>/<channel>/<os_version>/<distribution>/<distribution_version>/',\n         views.fetch_snippets, name='base.fetch_snippets'),\n    path('preview/', views.preview_snippet, name='base.preview'),\n    path('preview-asr/<str:uuid>/', views.preview_asr_snippet, name='asr-preview'),\n    path('show/<int:snippet_id>/', views.show_snippet, name='base.show'),\n    path('show/uuid/<str:snippet_id>/', views.show_snippet, {'uuid': True}, name='base.show_uuid'),\n    path('csp-violation-capture', views.csp_violation_capture, name='csp-violation-capture'),\n    path('healthz/', watchman_views.ping, name='watchman.ping'),\n    path('readiness/', watchman_views.status, name='watchman.status'),\n    path('feeds/snippets.ics', feed.SnippetsFeed()),\n]\n", "path": "snippets/base/urls.py"}, {"content": "import operator\nfrom datetime import timedelta\nfrom distutils.util import strtobool\nfrom textwrap import dedent\nfrom urllib.parse import urlparse\n\nfrom django.conf import settings\nfrom django.db.models import Q\n\nimport django_filters\nfrom django_ical.views import ICalFeed\n\nfrom snippets.base import models\n\n\nclass ASRSnippetFilter(django_filters.FilterSet):\n    name = django_filters.CharFilter(lookup_expr='icontains')\n    locale = django_filters.CharFilter(method='filter_locale')\n    only_scheduled = django_filters.ChoiceFilter(\n        method='filter_scheduled', choices=(('true', 'Yes'),\n                                            ('false', 'No'),\n                                            ('all', 'All')))\n\n    def filter_locale(self, queryset, name, value):\n        if not value:\n            return queryset\n\n        locales = value.split(',')\n        return queryset.filter(\n            operator.or_(\n                *[Q(locale__code=',{},'.format(locale)) for locale in locales]\n            )\n        )\n\n    def filter_scheduled(self, queryset, name, value):\n        if value == 'all':\n            return queryset\n\n        value = strtobool(value)\n\n        if value:\n            return queryset.exclude(publish_start=None, publish_end=None)\n\n        return queryset.filter(publish_start=None, publish_end=None)\n\n    class Meta:\n        model = models.ASRSnippet\n        fields = []\n\n\nclass SnippetsFeed(ICalFeed):\n    timezone = 'UTC'\n    title = 'Snippets'\n\n    def __call__(self, request, *args, **kwargs):\n        self.request = request\n        return super().__call__(request, *args, **kwargs)\n\n    @property\n    def product_id(self):\n        return '//{}/Snippets?{}'.format(urlparse(settings.SITE_URL).netloc,\n                                         self.request.GET.urlencode())\n\n    def items(self):\n        queryset = (models.ASRSnippet.objects\n                    .filter(for_qa=False, status=models.STATUS_CHOICES['Published'])\n                    .order_by('publish_start'))\n        filtr = ASRSnippetFilter(self.request.GET, queryset=queryset)\n        return filtr.qs\n\n    def item_title(self, item):\n        return item.name\n\n    def item_link(self, item):\n        return item.get_admin_url()\n\n    def item_description(self, item):\n        description = dedent('''\\\n        Channels: {}\n        Locales: {}'\n        Preview Link: {}\n        '''.format(', '.join(item.channels),\n                   ', '.join(item.locales.values_list('name', flat=True)),\n                   item.get_preview_url()))\n        return description\n\n    def item_start_datetime(self, item):\n        return item.publish_start or item.created\n\n    def item_end_datetime(self, item):\n        return item.publish_end or (self.item_start_datetime(item) + timedelta(days=365))\n\n    def item_created(self, item):\n        return item.created\n\n    def item_updateddate(self, item):\n        return item.modified\n", "path": "snippets/base/feed.py"}], "after_files": [{"content": "from django.urls import path\n\nfrom watchman import views as watchman_views\n\nfrom snippets.base import views\nfrom snippets.base import feed\n\n\nurlpatterns = [\n    path('', views.HomeView.as_view()),\n    path('<int:startpage_version>/<name>/<version>/<appbuildid>/<build_target>/'\n         '<locale>/<channel>/<os_version>/<distribution>/<distribution_version>/',\n         views.fetch_snippets, name='base.fetch_snippets'),\n    path('preview/', views.preview_snippet, name='base.preview'),\n    path('preview-asr/<str:uuid>/', views.preview_asr_snippet, name='asr-preview'),\n    path('show/<int:snippet_id>/', views.show_snippet, name='base.show'),\n    path('show/uuid/<str:snippet_id>/', views.show_snippet, {'uuid': True}, name='base.show_uuid'),\n    path('csp-violation-capture', views.csp_violation_capture, name='csp-violation-capture'),\n    path('healthz/', watchman_views.ping, name='watchman.ping'),\n    path('readiness/', watchman_views.status, name='watchman.status'),\n    path('feeds/snippets.ics', feed.SnippetsFeed(), name='ical-feed'),\n]\n", "path": "snippets/base/urls.py"}, {"content": "import operator\nfrom datetime import timedelta\nfrom distutils.util import strtobool\nfrom textwrap import dedent\nfrom urllib.parse import urlparse\n\nfrom django.conf import settings\nfrom django.db.models import Q\n\nimport django_filters\nfrom django_ical.views import ICalFeed\n\nfrom snippets.base import models\n\n\nclass ASRSnippetFilter(django_filters.FilterSet):\n    name = django_filters.CharFilter(lookup_expr='icontains')\n    locale = django_filters.CharFilter(method='filter_locale')\n    only_scheduled = django_filters.ChoiceFilter(\n        method='filter_scheduled', choices=(('true', 'Yes'),\n                                            ('false', 'No'),\n                                            ('all', 'All')))\n\n    def filter_locale(self, queryset, name, value):\n        if not value:\n            return queryset\n\n        locales = value.split(',')\n        return queryset.filter(\n            operator.or_(\n                *[Q(locale__code=',{},'.format(locale)) for locale in locales]\n            )\n        )\n\n    def filter_scheduled(self, queryset, name, value):\n        if value == 'all':\n            return queryset\n\n        value = strtobool(value)\n\n        if value:\n            return queryset.exclude(publish_start=None, publish_end=None)\n\n        return queryset.filter(publish_start=None, publish_end=None)\n\n    class Meta:\n        model = models.ASRSnippet\n        fields = []\n\n\nclass SnippetsFeed(ICalFeed):\n    timezone = 'UTC'\n    title = 'Snippets'\n\n    def __call__(self, request, *args, **kwargs):\n        self.request = request\n        return super().__call__(request, *args, **kwargs)\n\n    @property\n    def product_id(self):\n        return '//{}/Snippets?{}'.format(urlparse(settings.SITE_URL).netloc,\n                                         self.request.GET.urlencode())\n\n    def items(self):\n        queryset = (models.ASRSnippet.objects\n                    .filter(for_qa=False, status=models.STATUS_CHOICES['Published'])\n                    .order_by('publish_start'))\n        filtr = ASRSnippetFilter(self.request.GET, queryset=queryset)\n        return filtr.qs\n\n    def item_title(self, item):\n        return item.name\n\n    def item_link(self, item):\n        return item.get_admin_url()\n\n    def item_description(self, item):\n        description = dedent('''\\\n        Channels: {}\n        Locale: {}'\n        Preview Link: {}\n        '''.format(', '.join(item.channels),\n                   item.locale,\n                   item.get_preview_url()))\n        return description\n\n    def item_start_datetime(self, item):\n        return item.publish_start or item.created\n\n    def item_end_datetime(self, item):\n        return item.publish_end or (self.item_start_datetime(item) + timedelta(days=365))\n\n    def item_created(self, item):\n        return item.created\n\n    def item_updateddate(self, item):\n        return item.modified\n", "path": "snippets/base/feed.py"}]}