SCHEMA CHANGE: Add comment_count to Torrent

with a helper function on Torrent to update the count.

migrations/versions/2bceb2cb4d7c_add_comment_count_to_torrent.py

@@ -0,0 +1,44 @@
+"""Add comment_count to Torrent
+
+Revision ID: 2bceb2cb4d7c
+Revises: d0eeb8049623
+Create Date: 2017-05-26 15:07:21.114331
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '2bceb2cb4d7c'
+down_revision = 'd0eeb8049623'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.add_column('nyaa_torrents', sa.Column('comment_count', sa.Integer(), nullable=False))
+    op.create_index(op.f('ix_nyaa_torrents_comment_count'), 'nyaa_torrents', ['comment_count'], unique=False)
+
+    try:
+        op.add_column('sukebei_torrents', sa.Column('comment_count', sa.Integer(), nullable=False))
+        op.create_index(op.f('ix_sukebei_torrents_comment_count'), 'sukebei_torrents', ['comment_count'], unique=False)    
+    except (sa.exc.OperationalError, sa.exc.ProgrammingError):
+        print('Could not upgrade sukebei!')
+
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_index(op.f('ix_nyaa_torrents_comment_count'), table_name='nyaa_torrents')
+    op.drop_column('nyaa_torrents', 'comment_count')
+
+    try:
+        op.drop_index(op.f('ix_sukebei_torrents_comment_count'), table_name='sukebei_torrents')
+        op.drop_column('sukebei_torrents', 'comment_count')
+    except (sa.exc.OperationalError, sa.exc.ProgrammingError):
+        print('Could not downgrade sukebei!')
+
+    # ### end Alembic commands ###

nyaa/models.py

@@ -67,6 +67,8 @@ class Torrent(db.Model):
     uploader_ip = db.Column(db.Binary(length=16), default=None, nullable=True)
     has_torrent = db.Column(db.Boolean, nullable=False, default=False)
 
+    comment_count = db.Column(db.Integer, default=0, nullable=False, index=True)
+
     created_time = db.Column(db.DateTime(timezone=False), default=datetime.utcnow, nullable=False)
     updated_time = db.Column(db.DateTime(timezone=False),
                              default=datetime.utcnow, onupdate=datetime.utcnow, nullable=False)
@@ -107,6 +109,10 @@ class Torrent(db.Model):
     def __repr__(self):
         return '<{0} #{1.id} \'{1.display_name}\' {1.filesize}b>'.format(type(self).__name__, self)
 
+    def update_comment_count(self):
+        self.comment_count = Comment.query.filter_by(torrent_id = self.id).count()
+        return self.comment_count
+
     @property
     def created_utc_timestamp(self):
         ''' Returns a UTC POSIX timestamp, as seconds '''
@@ -149,6 +155,8 @@ class Torrent(db.Model):
         if self.uploader_ip:
             return str(ip_address(self.uploader_ip))
 
+    # Flag getters and setters below
+
     @property
     def anonymous(self):
         return self.flags & TorrentFlags.ANONYMOUS
@@ -197,6 +205,8 @@ class Torrent(db.Model):
     def complete(self, value):
         self.flags = (self.flags & ~TorrentFlags.COMPLETE) | (value and TorrentFlags.COMPLETE)
 
+    # Class methods
+
     @classmethod
     def by_id(cls, id):
         return cls.query.get(id)