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Subject [GitHub] [airflow] BasPH commented on a change in pull request #5461: [AIRFLOW-4835] Refactor render_template
Date Sat, 03 Aug 2019 07:39:31 GMT
BasPH commented on a change in pull request #5461: [AIRFLOW-4835] Refactor render_template

 File path: airflow/models/
 @@ -636,51 +636,71 @@ def __setstate__(self, state):
         self.__dict__ = state
         self._log = logging.getLogger("airflow.task.operators")
-    def render_template_from_field(self, attr, content, context, jinja_env):
+    def render_template_fields(self, context: Dict) -> None:
-        Renders a template from a field. If the field is a string, it will
-        simply render the string and return the result. If it is a collection or
-        nested set of collections, it will traverse the structure and render
-        all elements in it. If the field has another type, it will return it as it is.
+        Template all attributes listed in template_fields. Note this operation is irreversible.
+        :param context: Dict with values to apply on content
+        :type context: dict
+        """
+        if self.template_fields:
+            if self.dag.user_defined_macros:
+                context.update(self.dag.user_defined_macros)
+            for attr_name in self.template_fields:
+                content = getattr(self, attr_name)
+                if content:
+                    rendered_content = self.render_template(content, context)
 Review comment:
   Wow that's pretty serious, I missed this one when moving code to the BaseOperator. Thanks
for pointing it out.

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