misc: add check condition example js

wcs/fields.py

@@ -892,6 +892,7 @@ class WidgetField(Field):
         form.add(self.widget_class, 'f%s' % self.id, title=self.label, hint=hint, **kwargs)
         widget = form.get_widget('f%s' % self.id)
         widget.field = self
+        widget.supports_check_condition = True
         if self.extra_css_class:
             if hasattr(widget, 'extra_css_class') and widget.extra_css_class:
                 widget.extra_css_class = '%s %s' % (widget.extra_css_class, self.extra_css_class)
@@ -3898,7 +3899,9 @@ class BlockField(WidgetField):
             self.block
         except KeyError:
             raise MissingBlockFieldError(self.type[6:])
-        return super().add_to_form(form, value=value)
+        widget = super().add_to_form(form, value=value)
+        widget.supports_check_condition = False
+        return widget
 
     def fill_admin_form(self, form):
         super().fill_admin_form(form)

wcs/forms/root.py

@@ -270,6 +270,7 @@ class FormPage(FormdefDirectoryBase, FormTemplateMixin):
         'code',
         'removedraft',
         'live',
+        'check_condition',
         ('go-to-backoffice', 'go_to_backoffice'),
     ]
 
@@ -929,6 +930,9 @@ class FormPage(FormdefDirectoryBase, FormTemplateMixin):
     def create_form(self, *args, **kwargs):
         form = self.formdef.create_form(*args, **kwargs)
         form.attrs['data-live-url'] = self.formdef.get_url(language=get_publisher().current_language) + 'live'
+        form.attrs['data-check-condition-url'] = (
+            self.formdef.get_url(language=get_publisher().current_language) + 'check_condition'
+        )
         return form
 
     def create_view_form(self, *args, **kwargs):
@@ -1656,6 +1660,41 @@ class FormPage(FormdefDirectoryBase, FormTemplateMixin):
             return result_error('form deserialization failed: %s' % e)
         return FormStatusPage.live_process_fields(form, formdata, displayed_fields)
 
+    def check_condition(self):
+        get_request().ignore_session = True
+        get_response().set_content_type('application/json')
+
+        def result_error(reason):
+            return json.dumps({'result': 'error', 'reason': reason})
+
+        session = get_session()
+        if not (session and session.id):
+            return result_error('missing session')
+
+        field_ref = get_request().form.get('field')
+        parts = field_ref.split('__')
+        for field in self.formdef.fields:
+            if 'f%s' % field.id == parts[0]:
+                break
+        else:
+            return result_error('missing field')
+        if len(parts) == 3:  # block field
+            for subfield in field.block.fields:
+                if 'f%s' % subfield.id == parts[2]:
+                    break
+            else:
+                return result_error('missing sub field')
+            field = subfield
+            field.id = field_ref[1:].replace('__', '$')
+
+        form = Form()
+        widget = field.add_to_form(form)
+        widget.parse()
+        if widget.has_error():
+            return json.dumps({'err': 1, 'msg': str(widget.get_error())})
+        else:
+            return json.dumps({'err': 0})
+
     def clean_submission_context(self):
         get_publisher().substitutions.unfeed(lambda x: x.__class__.__name__ == 'ConditionVars')
         get_publisher().substitutions.unfeed(lambda x: isinstance(x, FormData))
@@ -2226,7 +2265,7 @@ class RootDirectory(AccessControlled, Directory):
 
 
 class PublicFormStatusPage(FormStatusPage):
-    _q_exports_orig = ['', 'download', 'status', 'live', 'tempfile']
+    _q_exports_orig = ['', 'download', 'status', 'live', 'tempfile', 'check_condition']
     form_page_class = FormPage
     history_templates = ['wcs/front/formdata_history.html', 'wcs/formdata_history.html']
     status_templates = ['wcs/front/formdata_status.html', 'wcs/formdata_status.html']

wcs/qommon/static/js/qommon.forms.js

@@ -756,3 +756,21 @@ $(function() {
     });
   }
 });
+
+
+function check_condition(button, widget_id) {
+  var $form = $('form[data-check-condition-url]');
+  var form_content = $form.serialize();
+  $.ajax({
+    type: 'POST',
+    url: $form.attr('data-check-condition-url') + '?field=' + widget_id,
+    data: form_content,
+    success: function(json) {
+      if (json.err === 0) {
+        button.textContent = 'ok';
+      } else {
+        button.textContent = 'err: ' + json.msg;
+      }
+    },
+  });
+}

wcs/qommon/templates/qommon/forms/widget.html

@@ -45,11 +45,14 @@
   {% if widget.render_br %}
     <br class="content {{widget.content.content_extra_css_class}}">
   {% endif %}
-  {% block widget-error-templates %}
-    {% if not widget.readonly %}
-      {% for error_message in widget.get_error_messages %}
-        <template id="error_{{ widget.get_name_for_id }}_{{ error_message.camel_code }}">{{ error_message.label }}</template>
-      {% endfor %}
-    {% endif %}
-  {% endblock %}
+  {% if widget.supports_check_condition %}
+    {% block widget-error-templates %}
+      {% if not widget.readonly %}
+        {% for error_message in widget.get_error_messages %}
+          <template id="error_{{ widget.get_name_for_id }}_{{ error_message.camel_code }}">{{ error_message.label }}</template>
+        {% endfor %}
+      {% endif %}
+    {% endblock %}
+    <button type="button" onclick="check_condition(this, '{{ widget.get_name_for_id }}')">check condition</button>
+  {% endif %}
 </div>