[gen] For Strings with validator=String.URL, an HTML link is rendered in view layouts; added a 'real' 'state' field to any Appy class, allowing to use it in search screens for example; added 2 hook methods: getIcons and getSubTitles, allowing to add, in lists of objects (Refs or queries), icons besides the title and anything below it; optimized query.pt: for every new query, 1 server request is done (previously, one standard request + one ajax request were done); removed columns 'actions' (Refs, query): action icons are not included in the column containing the title (we avoid having empty columns whhen no action is available).

gen/mixins/ToolMixin.py

@@ -545,6 +545,11 @@ class ToolMixin(BaseMixin):
         appyType = self.getAppyType(name, className=className)
         if appyType: return appyType.isSortable(usage=usage)
 
+    def subTitleIsUsed(self, className):
+        '''Does class named p_className define a method "getSubTitle"?'''
+        klass = self.getAppyClass(className)
+        return hasattr(klass, 'getSubTitle')
+
     def _searchValueIsEmpty(self, key):
         '''Returns True if request value in key p_key can be considered as
            empty.'''