+ return licenses.SUPPORTED_LICENSES[self.license or ""]
+
+ def exif_display_iter(self):
+ from mediagoblin.tools.exif import USEFUL_TAGS
+
+ if not self.media_data:
+ return
+ exif_all = self.media_data.get("exif_all")
+
+ for key in USEFUL_TAGS:
+ if key in exif_all:
+ yield key, exif_all[key]
+
+
+class MediaCommentMixin(object):
+ @property
+ def content_html(self):
+ """
+ the actual html-rendered version of the comment displayed.
+ Run through Markdown and the HTML cleaner.
+ """
+ return cleaned_markdown_conversion(self.content)
+
+
+class CollectionMixin(object):
+ def generate_slug(self):
+ # import this here due to a cyclic import issue
+ # (db.models -> db.mixin -> db.util -> db.models)
+ from mediagoblin.db.util import check_collection_slug_used
+
+ self.slug = slugify(self.title)
+
+ duplicate = check_collection_slug_used(mg_globals.database,
+ self.creator, self.slug, self.id)
+
+ if duplicate:
+ if self.id is not None:
+ self.slug = u"%s-%s" % (self.id, self.slug)
+ else:
+ self.slug = None
+
+ @property
+ def description_html(self):
+ """
+ Rendered version of the description, run through
+ Markdown and cleaned with our cleaning tool.
+ """
+ return cleaned_markdown_conversion(self.description)
+
+ @property
+ def slug_or_id(self):
+ return (self.slug or self._id)
+
+ def url_for_self(self, urlgen, **extra_args):
+ """
+ Generate an appropriate url for ourselves
+
+ Use a slug if we have one, else use our '_id'.
+ """
+ creator = self.get_creator
+
+ return urlgen(
+ 'mediagoblin.user_pages.user_collection',
+ user=creator.username,
+ collection=self.slug_or_id,
+ **extra_args)
+
+
+class CollectionItemMixin(object):
+ @property
+ def note_html(self):
+ """
+ the actual html-rendered version of the note displayed.
+ Run through Markdown and the HTML cleaner.
+ """
+ return cleaned_markdown_conversion(self.note)