add inventory admin fix, add procurement update

backend/models/ProcurementUpdate.php

@@ -0,0 +1,49 @@
+<?php
+namespace backend\models;
+
+
+
+use common\models\Procurement;
+use common\models\Product;
+use yii\helpers\VarDumper;
+use common\models\Log;
+
+
+class ProcurementUpdate extends Procurement{
+
+	private $oldCount;
+	
+	public function rules( ) {
+		return [
+				[ ['count', 'purchase_price' ], 'integer'],	
+				[ ['count', 'purchase_price' ], 'required'],	
+		]; 
+	}
+
+	public function beforeSave($insert){
+		if ( !$insert ){
+			$changed = $this->getOldAttribute('count');
+// 				VarDumper::dump($changed);
+// 			VarDumper::dump($this->getDirtyAttributes(['count']));
+			$this->oldCount = $this->getOldAttribute('count'); 
+			
+		}
+		return true;
+	}
+	
+	public function afterSave($insert, $changedAttributes){
+		$product = Product::findOne($this->id_product);
+		
+		$product->stock = $product->stock - $this->oldCount + $this->count;
+		
+		$product->save(false);
+		
+		Log::log([
+					'id_product' => $this->product->id_product,
+        			'type' =>Log::$TYPE_PROCUREMENT_UPDATE,
+        			'message' => "Beszerzés(#".$this->id_procurement.") módosítva. Beszerzett mennyiség: " . $this->oldCount . " > " .$this->count,
+        	]);
+	}
+	
+	
+}