tests/backoffice_pages/test_all.py

@@ -2564,6 +2564,49 @@ def test_backoffice_wfedit_and_data_source_with_user_info(pub):
         resp = resp.follow()
 
 
+def test_backoffice_wfedit_and_form_status(pub):
+    user = create_user(pub)
+
+    workflow = Workflow(name='wfedit')
+    st1 = workflow.add_status('Status1')
+    wfedit = st1.add_action('editable', id='_wfedit')
+    wfedit.by = [user.roles[0]]
+    st2 = workflow.add_status('Status2')
+    wfedit = st2.add_action('editable', id='_wfedit')
+    wfedit.by = [user.roles[0]]
+    workflow.store()
+
+    formdef = FormDef()
+    formdef.name = 'test form'
+    formdef.fields = [
+        fields.CommentField(id='1', label='current status: {{form_status}}'),
+        fields.CommentField(id='2', label='previous status: {{form_previous_status}}'),
+    ]
+    formdef.workflow_id = workflow.id
+    formdef.store()
+
+    formdata = formdef.data_class()()
+    formdata.just_created()
+    formdata.store()
+
+    app = login(get_app(pub))
+
+    resp = app.get(f'/backoffice/management/test-form/{formdata.id}/')
+    resp = resp.form.submit('button_wfedit')
+    resp = resp.follow()
+    assert resp.pyquery('[data-field-id="1"]').text() == 'current status: Status1'
+    assert resp.pyquery('[data-field-id="2"]').text() == 'previous status:'
+
+    formdata.jump_status(st2.id)
+    formdata.store()
+
+    resp = app.get(f'/backoffice/management/test-form/{formdata.id}/')
+    resp = resp.form.submit('button_wfedit')
+    resp = resp.follow()
+    assert resp.pyquery('[data-field-id="1"]').text() == 'current status: Status2'
+    assert resp.pyquery('[data-field-id="2"]').text() == 'previous status: Status1'
+
+
 def test_backoffice_wfedit_and_workflow_data(pub):
     user = create_user(pub)
     create_environment(pub)

wcs/forms/root.py

@@ -42,7 +42,7 @@ from wcs.qommon.admin.texts import TextsDirectory
 from wcs.qommon.storage import NothingToUpdate
 from wcs.roles import logged_users_role
 from wcs.sql_criterias import Equal, NotEqual
-from wcs.variables import LazyFormDef
+from wcs.variables import LazyFormData, LazyFormDef
 from wcs.workflows import ContentSnapshotPart, WorkflowStatusItem
 
 from ..qommon import _, emails, errors, get_cfg, misc, ngettext, template
@@ -919,6 +919,11 @@ class FormPage(Directory, TempfileDirectoryMixin, FormTemplateMixin):
             formdata._edited_id = self.edited_data.id
             # keep workflow data as it may be used in conditions
             formdata.workflow_data = self.edited_data.workflow_data
+            # make form_status and form_previous_status accessible
+            formdata.status = self.edited_data.status
+            # add previous status as a private attribute as it cannot be computed
+            # from history when editing.
+            formdata._previous_status = LazyFormData(self.edited_data).previous_status
             return formdata
 
         formdata.status = ''

wcs/variables.py

@@ -946,6 +946,9 @@ class LazyFormData(LazyFormDef):
 
     @property
     def previous_status(self):
+        if getattr(self._formdata, '_previous_status', None):
+            # for minimal formdata object used during edition.
+            return self._formdata._previous_status
         if self._formdata.evolution:
             for evolution in reversed(self._formdata.evolution):
                 if evolution.status and evolution.status != self._formdata.status: