etr2460 commented on a change in pull request #9284: Reduce dashboard bootstrap
payload
URL:
https://github.com/apache/incubator-superset/pull/9284#discussion_r391337508
##########
File path: superset/connectors/base/models.py
##########
@@ -213,6 +235,82 @@ def data(self) -> Dict[str, Any]:
"select_star": self.select_star,
}
+ def data_for_slices(self, slices: List[Slice]) -> Dict[str, Any]:
+ """
+ The representation of the datasource containing only the required data
+ to render the provided slices.
+
+ Used to reduce the payload when loading a dashboard.
+ """
+ data = self.data
+ metric_names = set()
+ column_names = set()
+ for slc in slices:
+ form_data = slc.form_data
+
+ # pull out all required metrics from the form_data
+ for param in METRICS_FORM_DATA_PARAMS:
+ if form_data.get(param):
Review comment:
I think we need this just in case `form_data[param]` equals `''` or `0` or
something else not iterable
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