fields: add support for inert fields in blocks (#44760)

tests/test_form_pages.py

@@ -8396,6 +8396,36 @@ def test_block_autocomplete_list(pub, blocks_feature):
     assert '>Bar<' in resp
 
 
+def test_block_title_and_comment(pub, blocks_feature):
+    create_user(pub)
+    FormDef.wipe()
+    BlockDef.wipe()
+
+    block = BlockDef()
+    block.name = 'foobar'
+    block.fields = [
+        fields.StringField(id='123', required=True, label='Test', type='string'),
+        fields.TitleField(id='234', label='Blah', type='title'),
+        fields.CommentField(id='345', label='Blah', type='comment'),
+    ]
+    block.store()
+
+    formdef = FormDef()
+    formdef.name = 'form title'
+    formdef.fields = [
+        fields.BlockField(id='1', label='test', type='block:foobar'),
+    ]
+    formdef.store()
+
+    app = get_app(pub)
+    resp = app.get(formdef.get_url())
+    resp.form['f1$element0$f123'] = 'foo'
+    resp = resp.form.submit('submit')  # -> validation page
+    assert 'Check values then click submit.' in resp.text
+    resp = resp.form.submit('submit')  # -> submit
+    resp = resp.follow()
+
+
 def test_block_multipage(pub, blocks_feature):
     create_user(pub)
     FormDef.wipe()

wcs/blocks.py

@@ -218,7 +218,8 @@ class BlockSubWidget(CompositeWidget):
 
     def set_value(self, value):
         for widget in self.get_widgets():
-            widget.set_value(value.get(widget.field.id))
+            if hasattr(widget, 'set_value'):
+                widget.set_value(value.get(widget.field.id))
 
     def get_field_data(self, field, widget):
         from wcs.formdef import FormDef

wcs/fields.py

@@ -650,6 +650,7 @@ class TitleField(Field):
         )
         label = wcs.workflows.template_on_formdata(None, self.label, autoescape=False)
         widget = HtmlWidget(htmltext(title_markup) % label)
+        widget.field = self
         form.widgets.append(widget)
         return widget
     add_to_view_form = add_to_form
@@ -700,11 +701,12 @@ class CommentField(Field):
                 content=self.get_text(),
                 extra_css_class=self.extra_css_class)
         form.widgets.append(widget)
+        widget.field = self
         return widget
 
-    def add_to_view_form(self, *args):
+    def add_to_view_form(self, *args, **kwargs):
         if self.include_in_validation_page:
-            return self.add_to_form(*args)
+            return self.add_to_form(*args, **kwargs)
         return None
 
     def get_html_content(self):
@@ -2013,7 +2015,7 @@ class PageField(Field):
                 changed = True
         return changed
 
-    def add_to_view_form(self, *args):
+    def add_to_view_form(self, *args, **kwargs):
         pass
 
 register_field_class(PageField)