Add support for dynamic attrs with attr_dict

Author: maximbelyayev

widget_tweaks/templatetags/widget_tweaks.py

@@ -215,11 +215,20 @@ def render(self, context):
             bounded_field = append_attr(
                 bounded_field, f"class:{context['WIDGET_REQUIRED_CLASS']}"
             )
+        attr_dict = {}
         for k, v in self.set_attrs:
+            if k == "attr_dict":
+                resolved_dict = v.resolve(context)
+                if not isinstance(resolved_dict, dict):
+                    raise ValueError(f"{k} must be of type dict.")
+                attr_dict.update(resolved_dict)
+            else:
+                attr_dict[k] = v.resolve(context)
+        for k, v in attr_dict.items():
             if k == "type":
-                bounded_field.field.widget.input_type = v.resolve(context)
+                bounded_field.field.widget.input_type = v
             else:
-                bounded_field = set_attr(bounded_field, f"{k}:{v.resolve(context)}")
+                bounded_field = set_attr(bounded_field, f"{k}:{v}")
         for k, v in self.append_attrs:
             bounded_field = append_attr(bounded_field, f"{k}:{v.resolve(context)}")
         return str(bounded_field)