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[yaffs-website] / vendor / chi-teck / drupal-code-generator / templates / d8 / hook / views_data_alter.twig

diff --git a/vendor/chi-teck/drupal-code-generator/templates/d8/hook/views_data_alter.twig b/vendor/chi-teck/drupal-code-generator/templates/d8/hook/views_data_alter.twig
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+/**
+ * Implements hook_views_data_alter().
+ */
+function {{ machine_name }}_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'] = [
+    'title' => t('Example field'),
+    'help' => t('Some example content that references a user'),
+
+    'field' => [
+      // 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'] = [
+    'title' => t('Title seen while adding relationship'),
+    'help' => t('More information about the relationship'),
+
+    'relationship' => [
+      // 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.
+}