[GitHub] [airflow] bbovenzi commented on a change in pull request #21740: Make Grid and and Graph view work with task mapping

[GitBox <gi...@apache.org>]

bbovenzi commented on a change in pull request #21740:
URL: https://github.com/apache/airflow/pull/21740#discussion_r813359640



##########
File path: airflow/www/utils.py
##########
@@ -53,10 +56,82 @@ def datetime_to_string(value: Optional[DateTime]) -> Optional[str]:
     return value.isoformat()
 
 
-def encode_ti(task_instance: Optional[models.TaskInstance]) -> Optional[Dict[str, Any]]:
+def get_mapped_instances(task_instance, session):
+    return (
+        session.query(TaskInstance)
+        .filter(
+            TaskInstance.dag_id == task_instance.dag_id,
+            TaskInstance.run_id == task_instance.run_id,
+            TaskInstance.task_id == task_instance.task_id,
+            TaskInstance.map_index >= 0,
+        )
+        .all()
+    )
+
+
+def get_instance_with_map(task_instance, session):
+    if task_instance.map_index == -1:
+        return alchemy_to_dict(task_instance)
+    mapped_instances = get_mapped_instances(task_instance, session)
+    return get_mapped_summary(task_instance, mapped_instances)
+
+
+def get_mapped_summary(parent_instance, task_instances):
+    priority = [
+        'failed',
+        'upstream_failed',
+        'up_for_retry',
+        'up_for_reschedule',
+        'queued',
+        'scheduled',
+        'deferred',
+        'sensing',
+        'running',
+        'shutdown',
+        'restarting',
+        'removed',
+        'no_status',
+        'success',
+        'skipped',
+    ]

Review comment:
       Updated.




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