+# GNU MediaGoblin -- federated, autonomous media hosting
+# Copyright (C) 2011, 2012 MediaGoblin contributors. See AUTHORS.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+import datetime
+
+from mediagoblin.db.base import Base
+from mediagoblin.db.base import Session
+from mediagoblin.db.models import Collection, User, MediaEntry
+from mediagoblin.db.mixin import GenerateSlugMixin
+
+from mediagoblin.media_types.blog.lib import check_blog_slug_used
+
+from mediagoblin.tools.text import cleaned_markdown_conversion
+
+from sqlalchemy import (
+ Column, Integer, ForeignKey, Unicode, UnicodeText, DateTime)
+from sqlalchemy.orm import relationship, backref
+
+
+class BlogMixin(GenerateSlugMixin):
+ def check_slug_used(self, slug):
+ return check_blog_slug_used(self.author, slug, self.id)
+
+
+class Blog(Base, BlogMixin):
+ __tablename__ = "mediatype__blogs"
+ id = Column(Integer, primary_key=True)
+ title = Column(Unicode)
+ description = Column(UnicodeText)
+ author = Column(Integer, ForeignKey(User.id), nullable=False, index=True) #similar to uploader
+ created = Column(DateTime, nullable=False, default=datetime.datetime.now, index=True)
+ slug = Column(Unicode)
+
+ @property
+ def slug_or_id(self):
+ return (self.slug or u'blog_{0}'.format(self.id))
+
+ def get_all_blog_posts(self, state=None):
+ blog_posts = Session.query(MediaEntry).join(BlogPostData)\
+ .filter(BlogPostData.blog == self.id)
+ if state is not None:
+ blog_posts = blog_posts.filter(MediaEntry.state==state)
+ return blog_posts
+
+ def delete(self, **kwargs):
+ all_posts = self.get_all_blog_posts()
+ for post in all_posts:
+ post.delete(del_orphan_tags=False, commit=False)
+ from mediagoblin.db.util import clean_orphan_tags
+ clean_orphan_tags(commit=False)
+ super(Blog, self).delete(**kwargs)
+
+
+
+
+BACKREF_NAME = "blogpost__media_data"
+
+class BlogPostData(Base):
+ __tablename__ = "blogpost__mediadata"
+
+ # The primary key *and* reference to the main media_entry
+ media_entry = Column(Integer, ForeignKey('core__media_entries.id'), primary_key=True)
+ blog = Column(Integer, ForeignKey('mediatype__blogs.id'), nullable=False)
+ get_media_entry = relationship("MediaEntry",
+ backref=backref(BACKREF_NAME, uselist=False,
+ cascade="all, delete-orphan"))
+
+
+DATA_MODEL = BlogPostData
+MODELS = [BlogPostData, Blog]