create new option values when custom field is changed

CRM/TwingleCampaign/BAO/CustomField.php

@@ -62,10 +62,11 @@ class CRM_TwingleCampaign_BAO_CustomField {
    * @param bool $upgrade
    * If true: Does not show UF message if custom field already exists
    *
-   * @returns array Result of custom field creation api call
+   * @returns array|False Result of custom field creation api call. False if
+   *  field already existed und wasn't upgraded.
    * @throws \CiviCRM_API3_Exception
    */
-  public function create(bool $upgrade = FALSE): ?array {
+  public function create(bool $upgrade = FALSE) {
 
     // Check if the field already exists
     $field = civicrm_api3(
@@ -129,17 +130,36 @@ class CRM_TwingleCampaign_BAO_CustomField {
       return NULL;
     }
     else {
-      return NULL;
+      $this->id = $field['values'][0]['id'];
+      $this->custom_group_id = $field['values'][0]['custom_group_id'];
+      return $this->upgrade($field['values'][0]);
     }
   }
 
   /**
-   * Update an existing custom field
+   * Upgrade an existing custom field
    *
-   * @returns array Result of custom field creation api call
+   * @param $attributes
+   *  Custom Field data
+   * @returns array|False Result of custom field creation api call, False if
+   *  field was not upgraded
    */
-  public function update(): array {
+  private function upgrade($attributes) {
+    $upgrade_necessary = False;
 
+    if (key_exists('option_group_id', $attributes)) {
+      $this->addOptions($attributes);
+    }
+
+    foreach ($this as $var => $value) {
+      // put array items into attributes
+      if (array_key_exists($var, $attributes) && $attributes[$var] != $value) {
+        $this->$var = $attributes[$var];
+        $upgrade_necessary = True;
+      }
+    }
+
+    if ($upgrade_necessary) {
       try {
         $this->result = civicrm_api3(
           'CustomField',
@@ -159,7 +179,8 @@ class CRM_TwingleCampaign_BAO_CustomField {
         else {
           throw new CiviCRM_API3_Exception($this->result['error_message']);
         }
-    } catch (CiviCRM_API3_Exception $e) {
+      }
+      catch (CiviCRM_API3_Exception $e) {
         // If the field could not get created: log error
         $errorMessage = $e->getMessage();
         if ($this->name && $this->custom_group_id) {
@@ -176,6 +197,8 @@ class CRM_TwingleCampaign_BAO_CustomField {
         return $this->result;
       }
     }
+    return False;
+  }
 
   /**
    * Add additional options to custom field
@@ -188,30 +211,14 @@ class CRM_TwingleCampaign_BAO_CustomField {
     $result = [];
 
     try {
-      $option_group_id = civicrm_api3(
+      foreach ($this->option_values as $key => $value) {
-        'CustomField',
-        'getsingle',
-        ['id' => $this->id]
-      )['option_group_id'];
-    } catch (CiviCRM_API3_Exception $e) {
-      $errorMessage = $e->getMessage();
-      Civi::log()
-        ->error("$this->extensionName could not get get option group id for custom field \"$this->name\": $errorMessage");
-      CRM_Utils_System::setUFMessage(
-        E::ts('%1 could not get option group id for custom field \'%2\'. Find more information in the logs.',
-          [1 => $this->extensionName, 2 => $this->name])
-      );
-    }
-
-    try {
-      foreach ($options as $key => $value) {
 
         $option_value_exists = civicrm_api3(
           'OptionValue',
           'get',
           [
             'sequential'      => 1,
-            'option_group_id' => $option_group_id,
+            'option_group_id' => $options['option_group_id'],
             'value'           => $key,
           ]
         );
@@ -222,7 +229,7 @@ class CRM_TwingleCampaign_BAO_CustomField {
             'OptionValue',
             'create',
             [
-              'option_group_id' => $option_group_id,
+              'option_group_id' => $options['option_group_id'],
               'value'           => $key,
               'label'           => $value,
             ]