Knowledge optimization (#3755)

Co-authored-by: crazywoola <427733928@qq.com>
Co-authored-by: JzoNg <jzongcode@gmail.com>

api/migrations/versions/3c7cac9521c6_add_tags_and_binding_table.py

@@ -0,0 +1,62 @@
+"""add-tags-and-binding-table
+
+Revision ID: 3c7cac9521c6
+Revises: c3311b089690
+Create Date: 2024-04-11 06:17:34.278594
+
+"""
+import sqlalchemy as sa
+from alembic import op
+from sqlalchemy.dialects import postgresql
+
+# revision identifiers, used by Alembic.
+revision = '3c7cac9521c6'
+down_revision = 'c3311b089690'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('tag_bindings',
+    sa.Column('id', postgresql.UUID(), server_default=sa.text('uuid_generate_v4()'), nullable=False),
+    sa.Column('tenant_id', postgresql.UUID(), nullable=True),
+    sa.Column('tag_id', postgresql.UUID(), nullable=True),
+    sa.Column('target_id', postgresql.UUID(), nullable=True),
+    sa.Column('created_by', postgresql.UUID(), nullable=False),
+    sa.Column('created_at', sa.DateTime(), server_default=sa.text('CURRENT_TIMESTAMP(0)'), nullable=False),
+    sa.PrimaryKeyConstraint('id', name='tag_binding_pkey')
+    )
+    with op.batch_alter_table('tag_bindings', schema=None) as batch_op:
+        batch_op.create_index('tag_bind_tag_id_idx', ['tag_id'], unique=False)
+        batch_op.create_index('tag_bind_target_id_idx', ['target_id'], unique=False)
+
+    op.create_table('tags',
+    sa.Column('id', postgresql.UUID(), server_default=sa.text('uuid_generate_v4()'), nullable=False),
+    sa.Column('tenant_id', postgresql.UUID(), nullable=True),
+    sa.Column('type', sa.String(length=16), nullable=False),
+    sa.Column('name', sa.String(length=255), nullable=False),
+    sa.Column('created_by', postgresql.UUID(), nullable=False),
+    sa.Column('created_at', sa.DateTime(), server_default=sa.text('CURRENT_TIMESTAMP(0)'), nullable=False),
+    sa.PrimaryKeyConstraint('id', name='tag_pkey')
+    )
+    with op.batch_alter_table('tags', schema=None) as batch_op:
+        batch_op.create_index('tag_name_idx', ['name'], unique=False)
+        batch_op.create_index('tag_type_idx', ['type'], unique=False)
+
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    with op.batch_alter_table('tags', schema=None) as batch_op:
+        batch_op.drop_index('tag_type_idx')
+        batch_op.drop_index('tag_name_idx')
+
+    op.drop_table('tags')
+    with op.batch_alter_table('tag_bindings', schema=None) as batch_op:
+        batch_op.drop_index('tag_bind_target_id_idx')
+        batch_op.drop_index('tag_bind_tag_id_idx')
+
+    op.drop_table('tag_bindings')
+    # ### end Alembic commands ###