1 files changed, 47 insertions, 0 deletions
diff --git a/alembic/versions/563a15b2a76e_add_support_for_threads.py b/alembic/versions/563a15b2a76e_add_support_for_threads.py
new file mode 100644
index 0000000..6f21e92
--- /dev/null
+++ b/alembic/versions/563a15b2a76e_add_support_for_threads.py
@@ -0,0 +1,47 @@
+"""Add support for threads
+
+Revision ID: 563a15b2a76e
+Revises: d6c9452c3940
+Create Date: 2021-10-31 14:46:49.926646
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '563a15b2a76e'
+down_revision = 'd6c9452c3940'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table(
+        'threads',
+        sa.Column('id', sa.String(), nullable=False),
+        sa.Column('parent_channel_id', sa.String(), nullable=False),
+        sa.Column('created_at', sa.DateTime(), nullable=True),
+        sa.Column('name', sa.String(), nullable=False),
+        sa.Column('archived', sa.Boolean(), nullable=False),
+        sa.Column('auto_archive_duration', sa.Integer(), nullable=False),
+        sa.Column('locked', sa.Boolean(), nullable=False),
+        sa.Column('type', sa.String(), nullable=False),
+        sa.ForeignKeyConstraint(['parent_channel_id'], ['channels.id'], ondelete='CASCADE'),
+        sa.PrimaryKeyConstraint('id')
+    )
+    op.add_column('messages', sa.Column('thread_id', sa.String(), nullable=True))
+    op.create_index(op.f('ix_messages_thread_id'), 'messages', ['thread_id'], unique=False)
+    op.create_index(op.f('ix_threads_type'), 'threads', ['type'], unique=False)
+    op.create_foreign_key(None, 'messages', 'threads', ['thread_id'], ['id'], ondelete='CASCADE')
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_constraint(None, 'messages', type_='foreignkey')
+    op.drop_index(op.f('ix_messages_thread_id'), table_name='messages')
+    op.drop_column('messages', 'thread_id')
+    op.drop_table('threads')
+    # ### end Alembic commands ###