Add support for silverstripe 5

composer.json

@@ -22,23 +22,26 @@
     }
   ],
   "require": {
-    "php": ">=5.6.0",
-    "silverstripe/framework": "^4@dev"
+    "php": "^8.1",
+    "silverstripe/framework": "^5"
   },
   "autoload": {
     "psr-4": {
       "SilverWare\\Calendar\\": "src/"
     }
   },
   "extra": {
-    "branch-alias": {
-      "dev-master": "1.0.x-dev"
-    },
     "expose": [
       "admin/client/dist",
       "client/dist"
     ]
   },
   "minimum-stability": "dev",
-  "prefer-stable": true
+  "prefer-stable": true,
+  "config": {
+    "allow-plugins": {
+      "composer/installers": true,
+      "silverstripe/vendor-plugin": true
+    }
+  }
 }

src/Extensions/FormFieldExtension.php

@@ -17,7 +17,6 @@
 
 namespace SilverWare\Calendar\Extensions;
 
-use SilverStripe\Core\Convert;
 use SilverStripe\Core\Extension;
 use SilverStripe\Forms\FormField;
 
@@ -38,14 +37,14 @@ class FormFieldExtension extends Extension
      * @var array
      */
     protected $calendarConfig = [];
-    
+
     /**
      * If set to true, disables the calendar picker for the extended object.
      *
      * @var boolean
      */
     protected $calendarDisabled = false;
-    
+
     /**
      * Defines either the named calendar config value, or the calendar config array.
      *
@@ -61,10 +60,10 @@ public function setCalendarConfig($arg1, $arg2 = null)
         } else {
             $this->calendarConfig[$arg1] = $arg2;
         }
-        
+
         return $this;
     }
-    
+
     /**
      * Answers either the named calendar config value, or the calendar config array.
      *
@@ -77,10 +76,10 @@ public function getCalendarConfig($name = null)
         if (!is_null($name)) {
             return isset($this->calendarConfig[$name]) ? $this->calendarConfig[$name] : null;
         }
-        
+
         return $this->calendarConfig;
     }
-    
+
     /**
      * Defines the value of the calendarDisabled attribute.
      *
@@ -91,10 +90,10 @@ public function getCalendarConfig($name = null)
     public function setCalendarDisabled($calendarDisabled)
     {
         $this->calendarDisabled = (boolean) $calendarDisabled;
-        
+
         return $this;
     }
-    
+
     /**
      * Answers the value of the calendarDisabled attribute.
      *
@@ -104,7 +103,7 @@ public function getCalendarDisabled()
     {
         return $this->calendarDisabled;
     }
-    
+
     /**
      * Event method called before the field is rendered.
      *
@@ -118,7 +117,7 @@ public function onBeforeRender(FormField $field)
             $field->addExtraClass($class);
         }
     }
-    
+
     /**
      * Updates the given array of HTML attributes from the extended object.
      *
@@ -131,7 +130,7 @@ public function updateAttributes(&$attributes)
         $attributes['data-calendar-config']  = $this->owner->getCalendarConfigJSON();
         $attributes['data-calendar-enabled'] = $this->owner->getCalendarEnabled();
     }
-    
+
     /**
      * Answers 'true' if the calendar is enabled for the extended object.
      *
@@ -142,17 +141,18 @@ public function getCalendarEnabled()
         if ($this->owner->isReadonly() || $this->owner->isDisabled()) {
             return 'false';
         }
-        
+
         return ($this->calendarDisabled || $this->owner->config()->calendar_disabled) ? 'false' : 'true';
     }
-    
+
     /**
      * Answers a JSON-encoded string containing the config for the calendar.
      *
      * @return string
+     * @throws \JsonException
      */
     public function getCalendarConfigJSON()
     {
-        return Convert::array2json($this->owner->getCalendarConfig(), JSON_FORCE_OBJECT);
+        return json_encode($this->owner->getCalendarConfig(), JSON_THROW_ON_ERROR | JSON_FORCE_OBJECT);
     }
 }