workflows: run field migrations in form workflow action (#32459)

tests/test_workflows.py

@@ -2219,6 +2219,27 @@ def test_display_form_and_comment(pub):
     assert 'Test' in str(form.widgets[0].render())
     assert '<textarea' in str(form.widgets[1].render())
 
+def test_display_form_migration(pub):
+    wf = Workflow(name='status')
+    st1 = wf.add_status('Status1', 'st1')
+
+    display_form = FormWorkflowStatusItem()
+    display_form.id = '_x'
+    display_form.varname = 'xxx'
+    display_form.formdef = WorkflowFormFieldsFormDef(item=display_form)
+    display_form.formdef.fields = [
+        ItemField(id='1', label='Test', type='item')
+    ]
+    st1.items.append(display_form)
+    display_form.parent = st1
+
+    display_form.formdef.fields[0].show_as_radio = True
+    wf.store()
+
+    wf = Workflow.get(wf.id)
+    assert wf.possible_status[0].items[0].formdef.fields[0].display_mode == 'radio'
+
+
 def test_choice_button_no_label(pub):
     role = Role(name='bar1')
     role.store()

wcs/wf/form.py

@@ -109,6 +109,13 @@ class FormWorkflowStatusItem(WorkflowStatusItem):
     def get_parameters(self):
         return ('by', 'varname', 'condition')
 
+    def migrate(self):
+        changed = False
+        if self.formdef and self.formdef.fields:
+            for field in self.formdef.fields:
+                changed |= field.migrate()
+        return changed
+
     def export_to_xml(self, charset, include_id=False):
         item = WorkflowStatusItem.export_to_xml(self, charset, include_id=include_id)
         if not hasattr(self, 'formdef') or not self.formdef or not self.formdef.fields: