Updated to Drupal 8.5. Core Media not yet in use.

[yaffs-website] / vendor / chi-teck / drupal-code-generator / templates / d7 / hook / field_update_forbid.twig

diff --git a/vendor/chi-teck/drupal-code-generator/templates/d7/hook/field_update_forbid.twig b/vendor/chi-teck/drupal-code-generator/templates/d7/hook/field_update_forbid.twig
new file mode 100644 (file)
index 0000000..dd1e03e
--- /dev/null
+++ b/vendor/chi-teck/drupal-code-generator/templates/d7/hook/field_update_forbid.twig
@@ -0,0 +1,22 @@
+/**
+ * Implements hook_field_update_forbid().
+ */
+function {{ machine_name }}_field_update_forbid($field, $prior_field, $has_data) {
+  // A 'list' field stores integer keys mapped to display values. If
+  // the new field will have fewer values, and any data exists for the
+  // abandoned keys, the field will have no way to display them. So,
+  // forbid such an update.
+  if ($has_data && count($field['settings']['allowed_values']) < count($prior_field['settings']['allowed_values'])) {
+    // Identify the keys that will be lost.
+    $lost_keys = array_diff(array_keys($field['settings']['allowed_values']), array_keys($prior_field['settings']['allowed_values']));
+    // If any data exist for those keys, forbid the update.
+    $query = new EntityFieldQuery();
+    $found = $query
+      ->fieldCondition($prior_field['field_name'], 'value', $lost_keys)
+      ->range(0, 1)
+      ->execute();
+    if ($found) {
+      throw new FieldUpdateForbiddenException("Cannot update a list field not to include keys with existing data");
+    }
+  }
+}