pierrejeambrun commented on code in PR #35403:
URL: https://github.com/apache/airflow/pull/35403#discussion_r1405480918


##########
airflow/www/views.py:
##########
@@ -3527,13 +3527,15 @@ def grid_data(self):
         with create_session() as session:
             query = select(DagRun).where(DagRun.dag_id == dag.dag_id, 
DagRun.execution_date <= base_date)
 
-        run_type = request.args.get("run_type")
-        if run_type:
-            query = query.where(DagRun.run_type == run_type)
-
-        run_state = request.args.get("run_state")
-        if run_state:
-            query = query.where(DagRun.state == run_state)
+        run_type_raw = request.args.get("run_type")
+        if run_type_raw:
+            run_types = {run_type.strip() for run_type in 
run_type_raw.split(",")}
+            query = query.where(DagRun.run_type.in_(run_types))
+
+        run_state_raw = request.args.get("run_state")
+        if run_state_raw:
+            run_states = {run_state.strip() for run_state in 
run_state_raw.split(",")}
+            query = query.where(DagRun.state.in_(run_states))

Review Comment:
   To avoid passing these as a big string and parsing this manually in the 
backend, you can use `request.args.getlist` and pass the query param list in a 
exploded way. cf query parameters section 
https://swagger.io/docs/specification/serialization/.
   
   There is no OpenAPI 'standard' for passing list in a query param, and I 
don't think we have define how to handle this in the webserver yet.
   
   This would just avoid some boilerplate code.



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