dify

dify/api/migrations/versions/fca025d3b60f_add_dataset_retrival_model.py

@@ -0,0 +1,71 @@
+"""add-dataset-retrieval-model
+
+Revision ID: fca025d3b60f
+Revises: b3a09c049e8e
+Create Date: 2023-11-03 13:08:23.246396
+
+"""
+import sqlalchemy as sa
+from alembic import op
+from sqlalchemy.dialects import postgresql
+
+import models.types
+
+
+def _is_pg(conn):
+    return conn.dialect.name == "postgresql"
+
+# revision identifiers, used by Alembic.
+revision = 'fca025d3b60f'
+down_revision = '8fe468ba0ca5'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    conn = op.get_bind()
+    
+    op.drop_table('sessions')
+    if _is_pg(conn):
+        with op.batch_alter_table('datasets', schema=None) as batch_op:
+            batch_op.add_column(sa.Column('retrieval_model', postgresql.JSONB(astext_type=sa.Text()), nullable=True))
+            batch_op.create_index('retrieval_model_idx', ['retrieval_model'], unique=False, postgresql_using='gin')
+    else:
+        with op.batch_alter_table('datasets', schema=None) as batch_op:
+            batch_op.add_column(sa.Column('retrieval_model', models.types.AdjustedJSON(astext_type=sa.Text()), nullable=True))
+
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    conn = op.get_bind()
+    
+    if _is_pg(conn):
+        with op.batch_alter_table('datasets', schema=None) as batch_op:
+            batch_op.drop_index('retrieval_model_idx', postgresql_using='gin')
+            batch_op.drop_column('retrieval_model')
+    else:
+        with op.batch_alter_table('datasets', schema=None) as batch_op:
+            batch_op.drop_column('retrieval_model')
+
+    if _is_pg(conn):
+        op.create_table('sessions',
+        sa.Column('id', sa.INTEGER(), autoincrement=True, nullable=False),
+        sa.Column('session_id', sa.VARCHAR(length=255), autoincrement=False, nullable=True),
+        sa.Column('data', postgresql.BYTEA(), autoincrement=False, nullable=True),
+        sa.Column('expiry', postgresql.TIMESTAMP(), autoincrement=False, nullable=True),
+        sa.PrimaryKeyConstraint('id', name='sessions_pkey'),
+        sa.UniqueConstraint('session_id', name='sessions_session_id_key')
+        )
+    else:
+        op.create_table('sessions',
+        sa.Column('id', sa.INTEGER(), autoincrement=True, nullable=False),
+        sa.Column('session_id', sa.VARCHAR(length=255), autoincrement=False, nullable=True),
+        sa.Column('data', models.types.BinaryData(), autoincrement=False, nullable=True),
+        sa.Column('expiry', sa.TIMESTAMP(), autoincrement=False, nullable=True),
+        sa.PrimaryKeyConstraint('id', name='sessions_pkey'),
+        sa.UniqueConstraint('session_id', name='sessions_session_id_key')
+        )
+    # ### end Alembic commands ###