From 52a234410d9337b812e6b1ef615850c0b3df3f7a Mon Sep 17 00:00:00 2001
From: Guy Marriott <guy@scopey.co.nz>
Date: Tue, 20 Nov 2018 17:52:48 +1300
Subject: [PATCH] NEW Extracting out the method to determine parameters
 (filters) for update the report sourceRecords

---
 code/Report.php | 26 ++++++++++++++++++++------
 1 file changed, 20 insertions(+), 6 deletions(-)

diff --git a/code/Report.php b/code/Report.php
index 3a87e659..5eee3d0c 100644
--- a/code/Report.php
+++ b/code/Report.php
@@ -346,12 +346,7 @@ class Report extends ViewableData
      */
     public function getReportField()
     {
-        $params = [];
-        if (Injector::inst()->has(HTTPRequest::class)) {
-            /** @var HTTPRequest $request */
-            $request = Injector::inst()->get(HTTPRequest::class);
-            $params = $request->param('filters') ?: $request->requestVar('filters') ?: [];
-        }
+        $params = $this->getSourceParams();
         $items = $this->sourceRecords($params, null, null);
 
         $gridFieldConfig = GridFieldConfig::create()->addComponents(
@@ -484,4 +479,23 @@ class Report extends ViewableData
     {
         return [];
     }
+
+    /**
+     * Get source params for the report to filter by
+     *
+     * @return array
+     */
+    protected function getSourceParams()
+    {
+        $params = [];
+        if (Injector::inst()->has(HTTPRequest::class)) {
+            /** @var HTTPRequest $request */
+            $request = Injector::inst()->get(HTTPRequest::class);
+            $params = $request->param('filters') ?: $request->requestVar('filters') ?: [];
+        }
+
+        $this->extend('updateSourceParams', $params);
+
+        return $params;
+    }
 }