fix task date validation

entity/Task_entity/Task_entity.aod

@@ -5,6 +5,7 @@
   <documentation>%aditoprj%/entity/Task_entity/documentation.adoc</documentation>
   <title>Task</title>
   <afterUiInit>%aditoprj%/entity/Task_entity/afterUiInit.js</afterUiInit>
+  <onValidation>%aditoprj%/entity/Task_entity/onValidation.js</onValidation>
   <iconId>VAADIN:TASKS</iconId>
   <iconIdProcess>%aditoprj%/entity/Task_entity/iconIdProcess.js</iconIdProcess>
   <titlePlural>Tasks</titlePlural>
@@ -73,7 +74,6 @@
       <inputFormat>dd.MM.yyyy HH:mm</inputFormat>
       <groupable v="true" />
       <valueProcess>%aditoprj%/entity/Task_entity/entityfields/start_date/valueProcess.js</valueProcess>
-      <onValidation>%aditoprj%/entity/Task_entity/entityfields/start_date/onValidation.js</onValidation>
     </entityField>
     <entityField>
       <name>MATURITY_DATE</name>
@@ -83,7 +83,6 @@
       <outputFormat>dd.MM.yyyy HH:mm</outputFormat>
       <inputFormat>dd.MM.yyyy HH:mm</inputFormat>
       <valueProcess>%aditoprj%/entity/Task_entity/entityfields/maturity_date/valueProcess.js</valueProcess>
-      <onValidation>%aditoprj%/entity/Task_entity/entityfields/maturity_date/onValidation.js</onValidation>
     </entityField>
     <entityField>
       <name>TYPE</name>

entity/Task_entity/entityfields/start_date/onValidation.js

-import("system.neon");
-import("system.result");
-import("system.vars");
-import("Date_lib");
-import("Entity_lib");
-
-var cStart = ProcessHandlingUtils.getOnValidationValue(vars.get("$field.START_DATE"));
-
-if (DateUtils.validateBeginnBeforeEnd(cStart, vars.get("$field.MATURITY_DATE")) === false)
-    result.string(DateUtils.getValidationFailString());
\ No newline at end of file

entity/Task_entity/entityfields/maturity_date/onValidation.js → entity/Task_entity/onValidation.js

-import("system.result");
-import("system.vars");
-import("Date_lib");
-import("Entity_lib");
-
-var cEnd = ProcessHandlingUtils.getOnValidationValue(vars.get("$field.MATURITY_DATE"));
-
-if (DateUtils.validateBeginnBeforeEnd(vars.get("$field.START_DATE"), cEnd) === false)
+import("system.result");
+import("Date_lib");
+import("system.vars");
+
+var startDate = vars.get("$field.START_DATE");
+var endDate = vars.get("$field.MATURITY_DATE");
+
+if (!DateUtils.validateBeginnBeforeEnd(startDate, endDate))
     result.string(DateUtils.getValidationFailString());
\ No newline at end of file