hook_views_data_alter(array &$data)
Alter the table and field information from hook_views_data().
Parameters
array $data: An array of all information about Views tables and fields, collected from hook_views_data(), passed by reference.
See also
Related topics
- Hooks
- Define functions that alter the behavior of Drupal core.
File
- core/modules/views/views.api.php, line 451
- Describes hooks and plugins provided by the Views module.
Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 | function hook_views_data_alter(array &$data) { // Alter the title of the node_field_data:nid field in the Views UI. $data['node_field_data']['nid']['title'] = t('Node-Nid'); // Add an additional field to the users_field_data table. $data['users_field_data']['example_field'] = array( 'title' => t('Example field'), 'help' => t('Some example content that references a user'), 'field' => array( // ID of the field handler to use. 'id' => 'example_field', ), ); // Change the handler of the node title field, presumably to a handler plugin // you define in your module. Give the ID of this plugin. $data['node_field_data']['title']['field']['id'] = 'node_title'; // Add a relationship that will allow a view whose base table is 'foo' (from // another module) to have a relationship to 'example_table' (from my module), // via joining foo.fid to example_table.eid. // // This relationship has to be added to the 'foo' Views data, which my module // does not control, so it must be done in hook_views_data_alter(), not // hook_views_data(). // // In Views data definitions, each field can have only one relationship. So // rather than adding this relationship directly to the $data['foo']['fid'] // field entry, which could overwrite an existing relationship, we define // a dummy field key to handle the relationship. $data['foo']['unique_dummy_name'] = array( 'title' => t('Title seen while adding relationship'), 'help' => t('More information about the relationship'), 'relationship' => array( // Views name of the table being joined to from foo. 'base' => 'example_table', // Database field name in example_table for the join. 'base field' => 'eid', // Real database field name in foo for the join, to override // 'unique_dummy_name'. 'field' => 'fid', // ID of relationship handler plugin to use. 'id' => 'standard', 'label' => t('Default label for relationship'), ), ); // Note that the $data array is not returned – it is modified by reference.} |
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