[5.3] Offer an "Attribute Casting" of encrypt

src/Illuminate/Database/Eloquent/Model.php

@@ -2793,6 +2793,17 @@ protected function isJsonCastable($key)
         return $this->hasCast($key, ['array', 'json', 'object', 'collection']);
     }
 
+    /**
+     * Determine whether a value should be encrypted.
+     *
+     * @param string $key
+     * @return bool
+     */
+    protected function isEncryptCastable($key)
+    {
+        return $this->hasCast($key, ['encrypt']);
+    }
+
     /**
      * Get the type of cast for a model attribute.
      *
@@ -2842,6 +2853,8 @@ protected function castAttribute($key, $value)
                 return $this->asDateTime($value);
             case 'timestamp':
                 return $this->asTimeStamp($value);
+            case 'encrypt':
+                return decrypt($value);
             default:
                 return $value;
         }
@@ -2872,6 +2885,10 @@ public function setAttribute($key, $value)
             $value = $this->fromDateTime($value);
         }
 
+        if ($this->isEncryptCastable($key) && ! is_null($value)) {
+            $value = $this->asEncrypted($value);
+        }
+
         if ($this->isJsonCastable($key) && ! is_null($value)) {
             $value = $this->asJson($value);
         }
@@ -3058,6 +3075,17 @@ public function fromJson($value, $asObject = false)
         return json_decode($value, ! $asObject);
     }
 
+    /**
+     * Encrypt to given value.
+     *
+     * @param mixed $value
+     * @return string
+     */
+    protected function asEncrypted($value)
+    {
+        return encrypt($value);
+    }
+
     /**
      * Clone the model into a new, non-existing instance.
      *