From 33f073749968ec653555386a35a017d0f3378923 Mon Sep 17 00:00:00 2001
From: "deb.monish" <monish.deb@jmaconsulting.biz>
Date: Tue, 24 Oct 2017 17:59:25 +0530
Subject: [PATCH] CRM-21322: create hook to modify entityRef fields

---
 CRM/Core/Form.php  |  1 +
 CRM/Utils/Hook.php | 14 ++++++++++++++
 2 files changed, 15 insertions(+)

diff --git a/CRM/Core/Form.php b/CRM/Core/Form.php
index 99a091d64f..a4e328cb4d 100644
--- a/CRM/Core/Form.php
+++ b/CRM/Core/Form.php
@@ -1873,6 +1873,7 @@ class CRM_Core_Form extends HTML_QuickForm_Page {
    * @param $props
    */
   private function formatReferenceFieldAttributes(&$props) {
+    CRM_Utils_Hook::alterEntityRefParams($props);
     $props['data-select-params'] = json_encode($props['select']);
     $props['data-api-params'] = $props['api'] ? json_encode($props['api']) : NULL;
     $props['data-api-entity'] = $props['entity'];
diff --git a/CRM/Utils/Hook.php b/CRM/Utils/Hook.php
index 4f0b0c3713..78ae0bc6b1 100644
--- a/CRM/Utils/Hook.php
+++ b/CRM/Utils/Hook.php
@@ -2382,4 +2382,18 @@ abstract class CRM_Utils_Hook {
     return self::singleton()->invoke(array('message'), $message, self::$_nullObject, self::$_nullObject, self::$_nullObject, self::$_nullObject, self::$_nullObject, 'civicrm_inboundSMS');
   }
 
+  /**
+   * This hook is called to modify api params of EntityRef form field
+   *
+   * @param array $params
+   *
+   * @return mixed
+   */
+  public static function alterEntityRefParams(&$params) {
+    return self::singleton()->invoke(array('params'), $params, self::$_nullObject,
+      self::$_nullObject, self::$_nullObject, self::$_nullObject, self::$_nullObject,
+      'civicrm_alterEntityRefParams'
+    );
+  }
+
 }
-- 
2.25.1