Add migration (#931)

spiffworkflow-backend/migrations/versions/343b406f723d_.py

@@ -0,0 +1,57 @@
+"""empty message
+
+Revision ID: 343b406f723d
+Revises: a872f8f2e909
+Create Date: 2024-01-31 10:40:53.320103
+
+"""
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import mysql
+
+# revision identifiers, used by Alembic.
+revision = '343b406f723d'
+down_revision = 'a872f8f2e909'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    # with op.batch_alter_table('spec_reference_cache', schema=None) as batch_op:
+    #     batch_op.drop_index('_identifier_type_unique')
+    #     batch_op.drop_index('ix_spec_reference_cache_display_name')
+    #     batch_op.drop_index('ix_spec_reference_cache_identifier')
+    #     batch_op.drop_index('ix_spec_reference_cache_process_model_id')
+    #     batch_op.drop_index('ix_spec_reference_cache_type')
+
+    op.drop_table('spec_reference_cache')
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('spec_reference_cache',
+    sa.Column('id', mysql.INTEGER(), autoincrement=True, nullable=False),
+    sa.Column('identifier', mysql.VARCHAR(length=255), nullable=True),
+    sa.Column('display_name', mysql.VARCHAR(length=255), nullable=True),
+    sa.Column('process_model_id', mysql.VARCHAR(length=255), nullable=True),
+    sa.Column('type', mysql.VARCHAR(length=255), nullable=True),
+    sa.Column('file_name', mysql.VARCHAR(length=255), nullable=True),
+    sa.Column('relative_path', mysql.VARCHAR(length=255), nullable=True),
+    sa.Column('has_lanes', mysql.TINYINT(display_width=1), autoincrement=False, nullable=True),
+    sa.Column('is_executable', mysql.TINYINT(display_width=1), autoincrement=False, nullable=True),
+    sa.Column('is_primary', mysql.TINYINT(display_width=1), autoincrement=False, nullable=True),
+    sa.PrimaryKeyConstraint('id'),
+    mysql_collate='utf8mb4_0900_ai_ci',
+    mysql_default_charset='utf8mb4',
+    mysql_engine='InnoDB'
+    )
+    with op.batch_alter_table('spec_reference_cache', schema=None) as batch_op:
+        batch_op.create_index('ix_spec_reference_cache_type', ['type'], unique=False)
+        batch_op.create_index('ix_spec_reference_cache_process_model_id', ['process_model_id'], unique=False)
+        batch_op.create_index('ix_spec_reference_cache_identifier', ['identifier'], unique=False)
+        batch_op.create_index('ix_spec_reference_cache_display_name', ['display_name'], unique=False)
+        batch_op.create_index('_identifier_type_unique', ['identifier', 'type'], unique=False)
+
+    # ### end Alembic commands ###