Implementing "OR filter relationships" in DateQuery.php

[eartahhj]

Hello, I was trying to understand why my date_query was not working with ElasticPress. When disabling the EP plugin the query works, when activating it, the query does not work correctly.

After debugging and researching, I came up to this file: includes/classes/Indexable/Post/DateQuery.php

Which, as of today, contains this comment:

// @todo implement OR filter relationships.

Is there a plan to implement this soon?

Here is an example of my date_query, obtained in the debugging addon:

'date_query' => 
  array (
    0 => 
    array (
      'year' => '2019',
    ),
    1 => 
    array (
      'year' => '2016',
    ),
    2 => 
    array (
      'year' => '2015',
    ),
    'relation' => 'OR',
  ),

Another example:

  'date_query' => 
  array (
    0 => 
    array (
      'after' => '2019-01-01 00:00:00',
      'before' => '2019-12-31 23:59:59',
    ),
    1 => 
    array (
      'after' => '2016-01-01 00:00:00',
      'before' => '2016-12-31 23:59:59',
    ),
    2 => 
    array (
      'after' => '2015-01-01 00:00:00',
      'before' => '2015-12-31 23:59:59',
    ),
    'relation' => 'OR',
    'inclusive' => true,
  ),

When using the OR relation and analyzing the resulting CURL request with the debugging tool, I can see that the "post_filter" parameter has nothing about years or date ranges, because that relationship has not been implemented yet.

I don't know EP plugin code much so I am not sure I could help with this. But maybe you have already planned to release this soon.

Thank you and kind regards