ng-change is getting called when ng-model loads value from DB - angularjs

Question

<div class="row" ng-repeat="dev in devs track by $index">
<div class="form-group col-md-2">
<select class="form-control form-control-sm"
ng-change="Function1(null)"
ng-model="dev.name" ng-required="true">
<option ng-repeat="item in dev.resc"
value="{{item.Id}}">{{item.name}}</option>
</select>
</div>
<div class="form-group col-md-2">
<input type="text"
ng-change="Function2(some value)"
ng-model="dev.startDate">
</div>
<div class="form-group col-md-2">
<input type="text" my-date-picker
class="form-control form-control-sm"
placeholder="Eg. 01/01/2018" ng-required="true"
ng-change="Function2(some value)"
ng-model="dev.endDate"
>
</div>
<div class="form-group col-md-2">
<input type="number"
class="form-control form-control-sm"
placeholder="Eg. 100"
ng-change="Function3(some value)"
ng-model="dev.loc"
ng-required=true>
</div>
<div class="form-group input-group col-md-2">
<input type="number" placeholder="Eg. 100"
class="form-control form-control-sm"
ng-change="Function3(some value)"
ng-model="dev.Add"
ng-required="true">
</div>
</div>
In above code when I iterate through devs FUNCTION2 is getting called everytime ng-model loads value, but FUNCTION1 and FUNCTION3 are not getting called. I do not want FUNCTION2 to get called, how do I achieve this? what is wrong in above code? Hope my doubt is understandable.

Answer 1

It seems you are formatting the input model value in my-date-picker directive that triggers ng-change event. You need to handle it accordingly. Either use $watch or handle same inside directive itself.