Migration to fix the names of the workflow specs.

migrations/versions/ac1141d29d37_.py

@@ -0,0 +1,82 @@
+"""empty message
+
+Revision ID: ac1141d29d37
+Revises: 8580676e5302
+Create Date: 2021-10-06 14:05:58.062277
+
+"""
+import re
+
+from alembic import op
+import sqlalchemy as sa
+
+# revision identifiers, used by Alembic.
+from crc.models.workflow import WorkflowSpecModel, WorkflowModel
+
+revision = 'ac1141d29d37'
+down_revision = '8580676e5302'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    print("Doing the upgrade")
+    op.execute('ALTER TABLE workflow DROP CONSTRAINT workflow_workflow_spec_id_fkey')
+    op.execute('ALTER TABLE file DROP CONSTRAINT file_workflow_spec_id_fkey')
+    op.execute('ALTER TABLE workflow_library DROP CONSTRAINT workflow_library_workflow_spec_id_fkey')
+    op.execute('ALTER TABLE workflow_library DROP CONSTRAINT workflow_library_library_spec_id_fkey')
+    op.execute('ALTER TABLE task_event DROP CONSTRAINT task_event_workflow_spec_id_fkey')
+    # Use Alchemy's connection and transaction to noodle over the data.
+    connection = op.get_bind()
+
+    # Select all existing names that need migrating.
+    results = connection.execute(sa.select([
+        WorkflowSpecModel.id,
+        WorkflowSpecModel.display_name,
+    ])).fetchall()
+    # Iterate over all selected data tuples.
+    for id, display_name in results:
+        new_id = display_name.lower().\
+            replace(",", "").\
+            replace("'", "").\
+            replace(" ", "_").\
+            replace("-", "_").\
+            replace(".", "_").\
+            replace("/","_").\
+            replace("\\", "_")
+        old_id = id
+        op.execute("Update workflow_spec set id='%s' where id='%s'" % (new_id, old_id))
+        op.execute("Update workflow set workflow_spec_id='%s' where workflow_spec_id='%s'" % (new_id, old_id))
+        op.execute("Update file set workflow_spec_id='%s' where workflow_spec_id='%s'" % (new_id, old_id))
+        op.execute("Update workflow_library set workflow_spec_id='%s' where workflow_spec_id='%s'" % (new_id, old_id))
+        op.execute("Update workflow_library set library_spec_id='%s' where library_spec_id='%s'" % (new_id, old_id))
+        op.execute("Update task_event set workflow_spec_id='%s' where workflow_spec_id='%s'" % (new_id, old_id))
+    op.create_foreign_key(
+        'workflow_workflow_spec_id_fkey',
+        'workflow', 'workflow_spec',
+        ['workflow_spec_id'], ['id'],
+    )
+    op.create_foreign_key(
+        'file_workflow_spec_id_fkey',
+        'file', 'workflow_spec',
+        ['workflow_spec_id'], ['id'],
+    )
+    op.create_foreign_key(
+        'workflow_library_workflow_spec_id_fkey',
+        'workflow_library', 'workflow_spec',
+        ['workflow_spec_id'], ['id'],
+    )
+    op.create_foreign_key(
+        'workflow_library_library_spec_id_fkey',
+        'workflow_library', 'workflow_spec',
+        ['library_spec_id'], ['id'],
+    )
+    op.create_foreign_key(
+        'task_event_workflow_spec_id_fkey',
+        'task_event', 'workflow_spec',
+        ['workflow_spec_id'], ['id'],
+    )
+
+
+def downgrade():
+    pass