[GitHub] jaylindquist opened a new pull request #6618: Support preselect_filters without filter_box IDs

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

jaylindquist opened a new pull request #6618: Support preselect_filters without filter_box IDs
URL: https://github.com/apache/incubator-superset/pull/6618
 
 
   We have a use case where external applications build links to dashboards with filters. Currently that requires these applications to know internal database IDs for filter boxes in order to build the `preselect_filters` query parameter.
   
   A second use case we have is users saving links to dashboards with `preselect_filters` already applied with the filter box ID.
   
   > `.../superset/dashboard/dash/?preselect_filters={"414":{"column":["value"]}}`
   
   When moving between environments or during normal maintenance, the filter box IDs may change causing external applications to update and breaking saved links.
   
   This change supports `preselect_filters` without filter box IDs allowing:
   * External applications generating filters for dashboards without needing database IDs
   * "Share Dashboard" button generating share links without dashboard filters, letting them continue to work if filter box IDs change
   * Backwards compatibility of `preselect_filters` allowing existing saved links to function
   
   > `.../superset/dashboard/dash/?preselect_filters={"column":["value"]}`
   
   When a dashboard is loaded with the above `preselect_filters` the `getInitialState()` function for dashboards will search through all filter boxes that support `column` as a filter and set it to `["value"]` as its value. Additionally, `preselect_filters` is backwards compatible, supporting the original format as well as the new format.
   

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