Extending dashboards filters

[ela]

I would like to a dashboard by setting a value of a filter. Here are my dashboards:

- dashboard: summary_report
  title: Summary Report
  layout: newspaper
  extension: required
  - elements:
    - title: Blab
      ...
      listen:
        Filter: some_field
  - name: Channel
    title: Channel
      type: field_filter
      allow_multiple_values: false
      required: false
      explore: explore
      field: some_field
      model: app
      listens_to_filters: []

- dashboard: specific_report
  title: Specific Report
  extends: summary_report
  - elements:
    - title: Another element
      ...
      listen:
        Filter: some_field
  - name: Channel
    title: Channel
      (here I would like to extend Channel filter)
      default_value: DEFAULT_VALUE

Any idea how I can do this? I don’t know where to put ${EXTENDED} in this case

[izzymiller]

I’m not totally sure what you meant by ${EXTENDED}— Is that the field you want to filter on? You should be able to declare the updated filter in specific_report by adding a listen: block like your example shows

listen:
  User ID: user.id

and then have a filter defined for User ID:

filters:
  - name: User ID
    title: User ID
    type: field_filter
    default_value: "{{ _user_attributes['user_id'] }}"
    allow_multiple_values: false
    required: false
    model: rock_climbing
    explore: ascent
    listens_to_filters: []
    field: user.id

Generally, with LookML dashboards, I personally find it easiest to build really simple dashboards and then use the “Get Dashboard LookML” option from the settings menu on the dashboard to see what those UI changes are actually doing to the LookML.