Add migrations

migrations/201802012053_ec39ababe957_add_ondelete_cascades.py

@@ -1,174 +0,0 @@
-"""Add ondelete cascades
-
-Revision ID: ec39ababe957
-Revises: 7c3fcf8a3335
-Create Date: 2018-02-01 20:53:08.146277
-
-"""
-from alembic import op
-import sqlalchemy as sa
-
-
-# revision identifiers, used by Alembic.
-revision = 'ec39ababe957'
-down_revision = '7c3fcf8a3335'
-branch_labels = ()
-depends_on = None
-
-
-def upgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    with op.batch_alter_table('conversations', schema=None) as batch_op:
-        batch_op.drop_constraint(None, type_='foreignkey')
-        batch_op.create_foreign_key("fk_conversations_user_id", 'users', ['user_id'], ['id'], ondelete='CASCADE')
-
-    with op.batch_alter_table('forumgroups', schema=None) as batch_op:
-        batch_op.drop_constraint('fk_forum_id', type_='foreignkey')
-        batch_op.drop_constraint(None, type_='foreignkey')
-        batch_op.create_foreign_key(None, 'groups', ['group_id'], ['id'], ondelete='CASCADE')
-        batch_op.create_foreign_key('fk_fg_forum_id', 'forums', ['forum_id'], ['id'], ondelete='CASCADE', use_alter=True)
-
-    with op.batch_alter_table('forums', schema=None) as batch_op:
-        batch_op.drop_constraint(None, type_='foreignkey')
-        batch_op.drop_constraint(None, type_='foreignkey')
-        batch_op.create_foreign_key(None, 'categories', ['category_id'], ['id'], ondelete='CASCADE')
-        batch_op.create_foreign_key(None, 'users', ['last_post_user_id'], ['id'], ondelete='SET NULL')
-
-    with op.batch_alter_table('forumsread', schema=None) as batch_op:
-        batch_op.drop_constraint(None, type_='foreignkey')
-        batch_op.drop_constraint('fk_fr_forum_id', type_='foreignkey')
-        batch_op.create_foreign_key('fk_fr_forum_id', 'forums', ['forum_id'], ['id'], ondelete='CASCADE', use_alter=True)
-        batch_op.create_foreign_key(None, 'users', ['user_id'], ['id'], ondelete='CASCADE')
-
-    with op.batch_alter_table('groups_users', schema=None) as batch_op:
-        batch_op.drop_constraint(None, type_='foreignkey')
-        batch_op.drop_constraint(None, type_='foreignkey')
-        batch_op.create_foreign_key(None, 'users', ['user_id'], ['id'], ondelete='CASCADE')
-        batch_op.create_foreign_key(None, 'groups', ['group_id'], ['id'], ondelete='CASCADE')
-
-    with op.batch_alter_table('messages', schema=None) as batch_op:
-        batch_op.drop_constraint(None, type_='foreignkey')
-        batch_op.drop_constraint(None, type_='foreignkey')
-        batch_op.create_foreign_key(None, 'users', ['user_id'], ['id'], ondelete='CASCADE')
-        batch_op.create_foreign_key(None, 'conversations', ['conversation_id'], ['id'], ondelete='CASCADE')
-
-    with op.batch_alter_table('moderators', schema=None) as batch_op:
-        batch_op.drop_constraint(None, type_='foreignkey')
-        batch_op.drop_constraint('fk_forum_id', type_='foreignkey')
-        batch_op.create_foreign_key('fk_mods_forum_id', 'forums', ['forum_id'], ['id'], ondelete='CASCADE', use_alter=True)
-        batch_op.create_foreign_key(None, 'users', ['user_id'], ['id'], ondelete='CASCADE')
-
-    with op.batch_alter_table('plugin_store', schema=None) as batch_op:
-        batch_op.drop_constraint(None, type_='foreignkey')
-        batch_op.create_foreign_key(None, 'plugin_registry', ['plugin_id'], ['id'], ondelete='CASCADE')
-
-    with op.batch_alter_table('posts', schema=None) as batch_op:
-        batch_op.alter_column('hidden',
-               existing_type=sa.BOOLEAN(),
-               nullable=True)
-
-    with op.batch_alter_table('settings', schema=None) as batch_op:
-        batch_op.drop_constraint('fk_settingsgroup', type_='foreignkey')
-        batch_op.create_foreign_key('fk_settingsgroup', 'settingsgroup', ['settingsgroup'], ['key'], ondelete='CASCADE', use_alter=True)
-
-    with op.batch_alter_table('topics', schema=None) as batch_op:
-        batch_op.alter_column('hidden',
-               existing_type=sa.BOOLEAN(),
-               nullable=True)
-        batch_op.drop_constraint('fk_topic_forum_id', type_='foreignkey')
-        batch_op.create_foreign_key('fk_topic_forum_id', 'forums', ['forum_id'], ['id'], ondelete='CASCADE', use_alter=True)
-
-    with op.batch_alter_table('topicsread', schema=None) as batch_op:
-        batch_op.drop_constraint(None, type_='foreignkey')
-        batch_op.drop_constraint('fk_tr_forum_id', type_='foreignkey')
-        batch_op.drop_constraint('fk_tr_topic_id', type_='foreignkey')
-        batch_op.create_foreign_key('fk_tr_topic_id', 'topics', ['topic_id'], ['id'], ondelete='CASCADE', use_alter=True)
-        batch_op.create_foreign_key('fk_tr_forum_id', 'forums', ['forum_id'], ['id'], ondelete='CASCADE', use_alter=True)
-        batch_op.create_foreign_key(None, 'users', ['user_id'], ['id'], ondelete='CASCADE')
-
-    with op.batch_alter_table('topictracker', schema=None) as batch_op:
-        batch_op.drop_constraint('fk_tracker_topic_id', type_='foreignkey')
-        batch_op.drop_constraint(None, type_='foreignkey')
-        batch_op.create_foreign_key(None, 'users', ['user_id'], ['id'], ondelete='CASCADE')
-        batch_op.create_foreign_key('fk_tracker_topic_id', 'topics', ['topic_id'], ['id'], ondelete='CASCADE', use_alter=True)
-
-    # ### end Alembic commands ###
-
-
-def downgrade():
-    # ### commands auto generated by Alembic - please adjust! ###
-    with op.batch_alter_table('topictracker', schema=None) as batch_op:
-        batch_op.drop_constraint('fk_tracker_topic_id', type_='foreignkey')
-        batch_op.drop_constraint(None, type_='foreignkey')
-        batch_op.create_foreign_key(None, 'users', ['user_id'], ['id'])
-        batch_op.create_foreign_key('fk_tracker_topic_id', 'topics', ['topic_id'], ['id'])
-
-    with op.batch_alter_table('topicsread', schema=None) as batch_op:
-        batch_op.drop_constraint(None, type_='foreignkey')
-        batch_op.drop_constraint('fk_tr_forum_id', type_='foreignkey')
-        batch_op.drop_constraint('fk_tr_topic_id', type_='foreignkey')
-        batch_op.create_foreign_key('fk_tr_topic_id', 'topics', ['topic_id'], ['id'])
-        batch_op.create_foreign_key('fk_tr_forum_id', 'forums', ['forum_id'], ['id'])
-        batch_op.create_foreign_key(None, 'users', ['user_id'], ['id'])
-
-    with op.batch_alter_table('topics', schema=None) as batch_op:
-        batch_op.drop_constraint('fk_topic_forum_id', type_='foreignkey')
-        batch_op.create_foreign_key('fk_topic_forum_id', 'forums', ['forum_id'], ['id'])
-        batch_op.alter_column('hidden',
-               existing_type=sa.BOOLEAN(),
-               nullable=False)
-
-    with op.batch_alter_table('settings', schema=None) as batch_op:
-        batch_op.drop_constraint('fk_settingsgroup', type_='foreignkey')
-        batch_op.create_foreign_key('fk_settingsgroup', 'settingsgroup', ['settingsgroup'], ['key'])
-
-    with op.batch_alter_table('posts', schema=None) as batch_op:
-        batch_op.alter_column('hidden',
-               existing_type=sa.BOOLEAN(),
-               nullable=False)
-
-    with op.batch_alter_table('plugin_store', schema=None) as batch_op:
-        batch_op.drop_constraint(None, type_='foreignkey')
-        batch_op.create_foreign_key(None, 'plugin_registry', ['plugin_id'], ['id'])
-
-    with op.batch_alter_table('moderators', schema=None) as batch_op:
-        batch_op.drop_constraint(None, type_='foreignkey')
-        batch_op.drop_constraint('fk_mods_forum_id', type_='foreignkey')
-        batch_op.create_foreign_key('fk_forum_id', 'forums', ['forum_id'], ['id'])
-        batch_op.create_foreign_key(None, 'users', ['user_id'], ['id'])
-
-    with op.batch_alter_table('messages', schema=None) as batch_op:
-        batch_op.drop_constraint(None, type_='foreignkey')
-        batch_op.drop_constraint(None, type_='foreignkey')
-        batch_op.create_foreign_key(None, 'users', ['user_id'], ['id'])
-        batch_op.create_foreign_key(None, 'conversations', ['conversation_id'], ['id'])
-
-    with op.batch_alter_table('groups_users', schema=None) as batch_op:
-        batch_op.drop_constraint(None, type_='foreignkey')
-        batch_op.drop_constraint(None, type_='foreignkey')
-        batch_op.create_foreign_key(None, 'users', ['user_id'], ['id'])
-        batch_op.create_foreign_key(None, 'groups', ['group_id'], ['id'])
-
-    with op.batch_alter_table('forumsread', schema=None) as batch_op:
-        batch_op.drop_constraint(None, type_='foreignkey')
-        batch_op.drop_constraint('fk_fr_forum_id', type_='foreignkey')
-        batch_op.create_foreign_key('fk_fr_forum_id', 'forums', ['forum_id'], ['id'])
-        batch_op.create_foreign_key(None, 'users', ['user_id'], ['id'])
-
-    with op.batch_alter_table('forums', schema=None) as batch_op:
-        batch_op.drop_constraint(None, type_='foreignkey')
-        batch_op.drop_constraint(None, type_='foreignkey')
-        batch_op.create_foreign_key(None, 'categories', ['category_id'], ['id'])
-        batch_op.create_foreign_key(None, 'users', ['last_post_user_id'], ['id'])
-
-    with op.batch_alter_table('forumgroups', schema=None) as batch_op:
-        batch_op.drop_constraint('fk_fg_forum_id', type_='foreignkey')
-        batch_op.drop_constraint(None, type_='foreignkey')
-        batch_op.create_foreign_key(None, 'groups', ['group_id'], ['id'])
-        batch_op.create_foreign_key('fk_forum_id', 'forums', ['forum_id'], ['id'])
-
-    with op.batch_alter_table('conversations', schema=None) as batch_op:
-        batch_op.drop_constraint(None, type_='foreignkey')
-        batch_op.create_foreign_key(None, 'users', ['user_id'], ['id'])
-
-    # ### end Alembic commands ###

migrations/201802021027_af3f5579c84d_add_cascades.py

@@ -0,0 +1,234 @@
+"""Add cascades
+
+Revision ID: af3f5579c84d
+Revises: 7c3fcf8a3335
+Create Date: 2018-02-02 10:27:50.290095
+
+"""
+import logging
+
+from alembic import op
+import sqlalchemy as sa
+
+logger = logging.getLogger("alembic.runtime.migration")
+
+# revision identifiers, used by Alembic.
+revision = 'af3f5579c84d'
+down_revision = '7c3fcf8a3335'
+branch_labels = ()
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    con = op.get_bind()
+
+    if con.engine.dialect.name == "sqlite":
+        # its not possible to remove unnamed constraints...
+        logger.warning("SQLite is only partially supported for revision {}."
+                       .format(revision))
+
+    with op.batch_alter_table('conversations', schema=None) as batch_op:
+        if con.engine.dialect.name == "mysql":
+            # user_id
+            batch_op.drop_constraint("conversations_ibfk_3", type_='foreignkey')
+        elif con.engine.dialect.name == "postgresql":
+            batch_op.drop_constraint('conversations_user_id_fkey', type_='foreignkey')
+
+        batch_op.create_foreign_key(batch_op.f('fk_conversations_user_id_users'), 'users', ['user_id'], ['id'], ondelete='CASCADE')
+
+    with op.batch_alter_table('forumgroups', schema=None) as batch_op:
+        if con.engine.dialect.name == "sqlite":
+            batch_op.drop_constraint('fk_forum_id', type_='foreignkey')
+        elif con.engine.dialect.name == "mysql":
+            # group_id
+            batch_op.drop_constraint("forumgroups_ibfk_1", type_='foreignkey')
+        elif con.engine.dialect.name == "postgresql":
+            batch_op.drop_constraint('forumgroups_group_id_fkey', type_='foreignkey')
+
+        batch_op.create_foreign_key(batch_op.f('fk_forumgroups_group_id_groups'), 'groups', ['group_id'], ['id'], ondelete='CASCADE')
+        batch_op.create_foreign_key(batch_op.f('fk_forumgroups_forum_id_forums'), 'forums', ['forum_id'], ['id'], ondelete='CASCADE')
+
+    with op.batch_alter_table('forums', schema=None) as batch_op:
+        if con.engine.dialect.name == "mysql":
+            # category_id
+            batch_op.drop_constraint("forums_ibfk_1", type_='foreignkey')
+            # last_post_user_id
+            batch_op.drop_constraint("forums_ibfk_3", type_='foreignkey')
+        elif con.engine.dialect.name == "postgresql":
+            batch_op.drop_constraint('forums_category_id_fkey', type_='foreignkey')
+            batch_op.drop_constraint('forums_last_post_user_id_fkey', type_='foreignkey')
+
+        batch_op.create_foreign_key(batch_op.f('fk_forums_category_id_categories'), 'categories', ['category_id'], ['id'], ondelete='CASCADE')
+        batch_op.create_foreign_key(batch_op.f('fk_forums_last_post_user_id_users'), 'users', ['last_post_user_id'], ['id'], ondelete='SET NULL')
+
+    with op.batch_alter_table('forumsread', schema=None) as batch_op:
+        if con.engine.dialect.name == "sqlite":
+            batch_op.drop_constraint('fk_fr_forum_id', type_='foreignkey')
+        elif con.engine.dialect.name == "mysql":
+            # user_id
+            batch_op.drop_constraint("forumsread_ibfk_1", type_='foreignkey')
+        elif con.engine.dialect.name == "postgresql":
+            batch_op.drop_constraint('forumsread_user_id_fkey', type_='foreignkey')
+
+        batch_op.create_foreign_key(batch_op.f('fk_forumsread_forum_id_forums'), 'forums', ['forum_id'], ['id'], ondelete='CASCADE')
+        batch_op.create_foreign_key(batch_op.f('fk_forumsread_user_id_users'), 'users', ['user_id'], ['id'], ondelete='CASCADE')
+
+    with op.batch_alter_table('groups_users', schema=None) as batch_op:
+        if con.engine.dialect.name == "mysql":
+            # group_id
+            batch_op.drop_constraint("groups_users_ibfk_1", type_='foreignkey')
+            # user_id
+            batch_op.drop_constraint("groups_users_ibfk_2", type_='foreignkey')
+        elif con.engine.dialect.name == "postgresql":
+            batch_op.drop_constraint('groups_users_group_id_fkey', type_='foreignkey')
+            batch_op.drop_constraint('groups_users_user_id_fkey', type_='foreignkey')
+
+        batch_op.create_foreign_key(batch_op.f('fk_groups_users_user_id_users'), 'users', ['user_id'], ['id'], ondelete='CASCADE')
+        batch_op.create_foreign_key(batch_op.f('fk_groups_users_group_id_groups'), 'groups', ['group_id'], ['id'], ondelete='CASCADE')
+
+    with op.batch_alter_table('messages', schema=None) as batch_op:
+        if con.engine.dialect.name == "mysql":
+            # conversation_id
+            batch_op.drop_constraint("messages_ibfk_1", type_='foreignkey')
+            # user_id
+            batch_op.drop_constraint("messages_ibfk_2", type_='foreignkey')
+        elif con.engine.dialect.name == "postgresql":
+            batch_op.drop_constraint('messages_conversation_id_fkey', type_='foreignkey')
+            batch_op.drop_constraint('messages_user_id_fkey', type_='foreignkey')
+
+        batch_op.create_foreign_key(batch_op.f('fk_messages_conversation_id_conversations'), 'conversations', ['conversation_id'], ['id'], ondelete='CASCADE')
+        batch_op.create_foreign_key(batch_op.f('fk_messages_user_id_users'), 'users', ['user_id'], ['id'], ondelete='CASCADE')
+
+    with op.batch_alter_table('moderators', schema=None) as batch_op:
+        if con.engine.dialect.name == "sqlite":
+            batch_op.drop_constraint('fk_forum_id', type_='foreignkey')
+        elif con.engine.dialect.name == "mysql":
+            # user_id
+            batch_op.drop_constraint("moderators_ibfk_1", type_='foreignkey')
+        elif con.engine.dialect.name == "postgresql":
+            batch_op.drop_constraint('moderators_user_id_fkey', type_='foreignkey')
+
+        batch_op.create_foreign_key(batch_op.f('fk_moderators_forum_id_forums'), 'forums', ['forum_id'], ['id'], ondelete='CASCADE')
+        batch_op.create_foreign_key(batch_op.f('fk_moderators_user_id_users'), 'users', ['user_id'], ['id'], ondelete='CASCADE')
+
+    with op.batch_alter_table('plugin_store', schema=None) as batch_op:
+        if con.engine.dialect.name == "mysql":
+            # plugin_id
+            batch_op.drop_constraint("plugin_store_ibfk_1", type_='foreignkey')
+        elif con.engine.dialect.name == "postgresql":
+            batch_op.drop_constraint('plugin_store_plugin_id_fkey', type_='foreignkey')
+
+        batch_op.create_foreign_key(batch_op.f('fk_plugin_store_plugin_id_plugin_registry'), 'plugin_registry', ['plugin_id'], ['id'], ondelete='CASCADE')
+
+    with op.batch_alter_table('posts', schema=None) as batch_op:
+        if con.engine.dialect.name == "sqlite":
+            batch_op.drop_constraint('fk_post_topic_id', type_='foreignkey')
+
+        batch_op.create_foreign_key(batch_op.f('fk_posts_topic_id_topics'), 'topics', ['topic_id'], ['id'], ondelete='CASCADE')
+
+    with op.batch_alter_table('settings', schema=None) as batch_op:
+        if con.engine.dialect.name == "sqlite":
+            batch_op.drop_constraint('fk_settingsgroup', type_='foreignkey')
+
+        batch_op.create_foreign_key(batch_op.f('fk_settings_settingsgroup_settingsgroup'), 'settingsgroup', ['settingsgroup'], ['key'], ondelete='CASCADE')
+
+    with op.batch_alter_table('topics', schema=None) as batch_op:
+        if con.engine.dialect.name == "sqlite":
+            batch_op.drop_constraint('fk_topic_forum_id', type_='foreignkey')
+
+        batch_op.create_foreign_key(batch_op.f('fk_topics_forum_id_forums'), 'forums', ['forum_id'], ['id'], ondelete='CASCADE')
+
+    with op.batch_alter_table('topicsread', schema=None) as batch_op:
+        if con.engine.dialect.name == "sqlite":
+            batch_op.drop_constraint('fk_tr_forum_id', type_='foreignkey')
+            batch_op.drop_constraint('fk_tr_topic_id', type_='foreignkey')
+        elif con.engine.dialect.name == "mysql":
+            # user_id
+            batch_op.drop_constraint("topicsread_ibfk_1", type_='foreignkey')
+        elif con.engine.dialect.name == "postgresql":
+            batch_op.drop_constraint('topicsread_user_id_fkey', type_='foreignkey')
+
+        batch_op.create_foreign_key(batch_op.f('fk_topicsread_topic_id_topics'), 'topics', ['topic_id'], ['id'], ondelete='CASCADE')
+        batch_op.create_foreign_key(batch_op.f('fk_topicsread_forum_id_forums'), 'forums', ['forum_id'], ['id'], ondelete='CASCADE')
+        batch_op.create_foreign_key(batch_op.f('fk_topicsread_user_id_users'), 'users', ['user_id'], ['id'], ondelete='CASCADE')
+
+    with op.batch_alter_table('topictracker', schema=None) as batch_op:
+        if con.engine.dialect.name == "sqlite":
+            batch_op.drop_constraint('fk_tracker_topic_id', type_='foreignkey')
+        elif con.engine.dialect.name == "mysql":
+            # user_id
+            batch_op.drop_constraint("topictracker_ibfk_1", type_='foreignkey')
+        elif con.engine.dialect.name == "postgresql":
+            batch_op.drop_constraint('topictracker_user_id_fkey', type_='foreignkey')
+
+        batch_op.create_foreign_key(batch_op.f('fk_topictracker_topic_id_topics'), 'topics', ['topic_id'], ['id'], ondelete='CASCADE')
+        batch_op.create_foreign_key(batch_op.f('fk_topictracker_user_id_users'), 'users', ['user_id'], ['id'], ondelete='CASCADE')
+
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    with op.batch_alter_table('topictracker', schema=None) as batch_op:
+        batch_op.drop_constraint(batch_op.f('fk_topictracker_user_id_users'), type_='foreignkey')
+        batch_op.drop_constraint(batch_op.f('fk_topictracker_topic_id_topics'), type_='foreignkey')
+        batch_op.create_foreign_key('fk_topictracker_user_id_users', 'users', ['user_id'], ['id'])
+
+    with op.batch_alter_table('topicsread', schema=None) as batch_op:
+        batch_op.drop_constraint(batch_op.f('fk_topicsread_user_id_users'), type_='foreignkey')
+        batch_op.drop_constraint(batch_op.f('fk_topicsread_forum_id_forums'), type_='foreignkey')
+        batch_op.drop_constraint(batch_op.f('fk_topicsread_topic_id_topics'), type_='foreignkey')
+        batch_op.create_foreign_key('fk_topicsread_user_id_users', 'users', ['user_id'], ['id'])
+
+    with op.batch_alter_table('topics', schema=None) as batch_op:
+        batch_op.drop_constraint(batch_op.f('fk_topics_forum_id_forums'), type_='foreignkey')
+
+    with op.batch_alter_table('settings', schema=None) as batch_op:
+        batch_op.drop_constraint(batch_op.f('fk_settings_settingsgroup_settingsgroup'), type_='foreignkey')
+
+    with op.batch_alter_table('posts', schema=None) as batch_op:
+        batch_op.drop_constraint(batch_op.f('fk_posts_topic_id_topics'), type_='foreignkey')
+
+    with op.batch_alter_table('plugin_store', schema=None) as batch_op:
+        batch_op.drop_constraint(batch_op.f('fk_plugin_store_plugin_id_plugin_registry'), type_='foreignkey')
+        batch_op.create_foreign_key('fk_plugin_store_plugin_id_plugin_registry', 'plugin_registry', ['plugin_id'], ['id'])
+
+    with op.batch_alter_table('moderators', schema=None) as batch_op:
+        batch_op.drop_constraint(batch_op.f('fk_moderators_user_id_users'), type_='foreignkey')
+        batch_op.drop_constraint(batch_op.f('fk_moderators_forum_id_forums'), type_='foreignkey')
+        batch_op.create_foreign_key('fk_moderators_user_id_users', 'users', ['user_id'], ['id'])
+
+    with op.batch_alter_table('messages', schema=None) as batch_op:
+        batch_op.drop_constraint(batch_op.f('fk_messages_user_id_users'), type_='foreignkey')
+        batch_op.drop_constraint(batch_op.f('fk_messages_conversation_id_conversations'), type_='foreignkey')
+        batch_op.create_foreign_key('fk_messages_user_id_users', 'users', ['user_id'], ['id'])
+        batch_op.create_foreign_key('fk_messages_conversation_id_conversations', 'conversations', ['conversation_id'], ['id'])
+
+    with op.batch_alter_table('groups_users', schema=None) as batch_op:
+        batch_op.drop_constraint(batch_op.f('fk_groups_users_group_id_groups'), type_='foreignkey')
+        batch_op.drop_constraint(batch_op.f('fk_groups_users_user_id_users'), type_='foreignkey')
+        batch_op.create_foreign_key('fk_groups_users_user_id_users', 'users', ['user_id'], ['id'])
+        batch_op.create_foreign_key('fk_groups_users_group_id_groups', 'groups', ['group_id'], ['id'])
+
+    with op.batch_alter_table('forumsread', schema=None) as batch_op:
+        batch_op.drop_constraint(batch_op.f('fk_forumsread_user_id_users'), type_='foreignkey')
+        batch_op.drop_constraint(batch_op.f('fk_forumsread_forum_id_forums'), type_='foreignkey')
+        batch_op.create_foreign_key('fk_forumsread_user_id_users', 'users', ['user_id'], ['id'])
+
+    with op.batch_alter_table('forums', schema=None) as batch_op:
+        batch_op.drop_constraint(batch_op.f('fk_forums_last_post_user_id_users'), type_='foreignkey')
+        batch_op.drop_constraint(batch_op.f('fk_forums_category_id_categories'), type_='foreignkey')
+        batch_op.create_foreign_key('fk_forums_last_post_user_id_users', 'users', ['last_post_user_id'], ['id'])
+        batch_op.create_foreign_key('fk_forums_category_id_categories', 'categories', ['category_id'], ['id'])
+
+    with op.batch_alter_table('forumgroups', schema=None) as batch_op:
+        batch_op.drop_constraint(batch_op.f('fk_forumgroups_forum_id_forums'), type_='foreignkey')
+        batch_op.drop_constraint(batch_op.f('fk_forumgroups_group_id_groups'), type_='foreignkey')
+        batch_op.create_foreign_key('fk_forumgroups_group_id_groups', 'groups', ['group_id'], ['id'])
+
+    with op.batch_alter_table('conversations', schema=None) as batch_op:
+        batch_op.drop_constraint(batch_op.f('fk_conversations_user_id_users'), type_='foreignkey')
+        batch_op.create_foreign_key('fk_conversations_user_id_users', 'users', ['user_id'], ['id'])
+
+    # ### end Alembic commands ###