From 7b1b56c8995d752bbb3bb87216bb16bd8bcd3a78 Mon Sep 17 00:00:00 2001
From: Korina Cordero <cordero.korina@gmail.com>
Date: Wed, 29 Jun 2022 08:31:56 +0000
Subject: [PATCH] Add event listener to job order to clear the jo json cache
 when updating or deleting a JO. #689

---
 config/services.yaml                          | 11 ++++++
 .../JobOrderJsonCacheListener.php             | 37 +++++++++++++++++++
 src/Service/JobOrderJsonCache.php             | 12 ++++++
 3 files changed, 60 insertions(+)
 create mode 100644 src/EventListener/JobOrderJsonCacheListener.php

diff --git a/config/services.yaml b/config/services.yaml
index 50791ba1..180c5602 100644
--- a/config/services.yaml
+++ b/config/services.yaml
@@ -221,6 +221,17 @@ services:
               event: 'postPersist'
               entity: 'App\Entity\JobOrder'
 
+    App\EventListener\JobOrderJsonCacheListener:
+        arguments:
+            $json_cache: "@App\\Service\\JobOrderJsonCache"
+        tags:
+            - name: 'doctrine.orm.entity_listener'
+              event: 'postUpdate'
+              entity: 'App\Entity\JobOrder'
+            - name: 'doctrine.orm.entity_listener'
+              event: 'postRemove'
+              entity: 'App\Entity\JobOrder'
+
     App\Service\JobOrderCache:
         arguments:
             $redis_prov: "@App\\Service\\RedisClientProvider"
diff --git a/src/EventListener/JobOrderJsonCacheListener.php b/src/EventListener/JobOrderJsonCacheListener.php
new file mode 100644
index 00000000..e2410468
--- /dev/null
+++ b/src/EventListener/JobOrderJsonCacheListener.php
@@ -0,0 +1,37 @@
+<?php
+
+namespace App\EventListener;
+
+use Doctrine\Common\Persistence\Event\LifecycleEventArgs;
+
+use App\Service\JobOrderJsonCache;
+
+use App\Entity\JobOrder;
+
+class JobOrderJsonCacheListener
+{
+    protected $json_cache;
+
+    public function __construct(JobOrderJsonCache $json_cache)
+    {
+        $this->json_cache = $json_cache;
+    }
+
+    // when a job order is updated
+    public function postUpdate(JobOrder $jo, LifecycleEventArgs $args)
+    {
+        // get JO id
+        $id = $jo->getID();
+
+        $this->json_cache->removeJOJsonInfo($id);
+    }
+
+    // when a job order is deleted
+    public function postRemove(JobOrder $jo, LifecycleEventArgs $args)
+    {
+        // get JO id
+        $id = $jo->getID();
+
+        $this->json_cache->removeJOJsonInfo($id);
+    }
+}
diff --git a/src/Service/JobOrderJsonCache.php b/src/Service/JobOrderJsonCache.php
index 414bdb52..31e155d5 100644
--- a/src/Service/JobOrderJsonCache.php
+++ b/src/Service/JobOrderJsonCache.php
@@ -38,4 +38,16 @@ class JobOrderJsonCache
 
         return $jo_data;
     }
+
+    public function removeJOJsonInfo($jo_id)
+    {
+        $key = $jo_id;
+
+        // check if JO id is in redis hash
+        $is_exist = $this->redis->hexists($this->jo_json_info_key, $key);
+        if ($is_exist)
+        {
+            $this->redis->hdel($this->jo_json_info_key, $key);
+        }    
+    }
 }