add ticket original end and original price

add helper links to related object in admin

common/components/DateUtil.php

@@ -101,4 +101,11 @@ class DateUtil
         return $formatter->asDatetime($dateTimeObject);
     }
 
+    public static function parseDate($dateString){
+
+        $date =  \DateTime::createFromFormat("Y.m.d",  $dateString, new \DateTimeZone( 'UTC'));
+        $date->setTime(0, 0, 0);
+        return $date;
+    }
+
 }

common/components/Helper.php

@@ -2,6 +2,7 @@
 
 namespace common\components;
 
+use common\models\TicketType;
 use common\models\Transfer;
 use \Yii;
 
@@ -493,5 +494,40 @@ class Helper {
 			}
 		}
 	}
+
+    /**
+     * @param $start \DateTime datetime
+     * @param $ticketType \common\models\TicketType the ticket type
+     */
+	public static function getTicketExpirationDate($start,$ticketType){
+	    $result = new \DateTime();
+	    $result->setTimezone(new \DateTimeZone("UTC") );
+	    $result->setTimestamp($start->getTimestamp());
+
+
+	    $unitCount = $ticketType->time_unit_count;
+	    $unitType = $ticketType->time_unit_type;
+
+	    switch ($unitType){
+            case TicketType::TIME_UNIT_DAY:
+                    $result->add(new \DateInterval("P".$unitCount."D"));
+                    $result->sub(new \DateInterval("P1D"));
+                break;
+            case TicketType::TIME_UNIT_MONTH:
+                $result->add(new \DateInterval("P".$unitCount."M"));
+                $result->sub(new \DateInterval("P1D"));
+                break;
+            case TicketType::TIME_UNIT_MONTH_REFERENCE:
+                if ( $unitCount > 1 ){
+                    $result->add(new \DateInterval("P". ($unitCount -1 )."M"));
+                }
+                $result->sub(new \DateInterval("P1D"));
+                break;
+        }
+
+        $result->setTime(0, 0, 0);
+
+        return $result;
+    }
 		
 }