Dynamically changing name of ng-show and scope variable - angularjs

Question

I have retrieving the contents from database using $http.get api and displaying each record using ng-repeat. For each record i have a like and comment button. On clicking on comment button, i will show input box with send button previously it will be hidden(using ng-show). The problem is- on clicking any one of the record comment button,all other records input box with send button will be shown including clicked.
<div ng-repeat="dat in details">
<ul>
<li><b>Product:</b><span> {{dat.product_name}}</span></li>
</ul>
<button style="background-color:#4C97C8;color:white;height:30px" class="btn buttonlike" ng-click="likebtn(dat.id,loginname)"><span class="glyphicon glyphicon-hand-right"></span><strong> Like</strong></button>
<button style="background-color:#4C97C8;color:white;height:30px" class="btn" ng-click="mycomment()"><span class="glyphicon glyphicon-comment"></span><strong> Comment</strong></button>
<div class="input-group" ng-show="comment1">
<input type="text" class="form-control" placeholder="comment" aria-describedby="basic-addon2">
<span class="input-group-addon" id="basic-addon2"><span class="glyphicon glyphicon-send"></span></span>
</div>
</div>
mycomment() method in script looks like-
$scope.comment1= false;
$scope.mycomment = function() {
$scope.comment1= true;
}
How can i change the name of ng-show-"comment1" dynamically(if I change, I have to change the name in script too) ?? is there any other way?

Answer 1

Try this:
<div ng-repeat="dat in details | filter : { product_name : textname} as results">
<hr/>
<p style="color:#4C97C8;" class="lead"><strong>{{dat.summary}}</strong></p>
<ul>
<li><b>Product:</b><span> {{dat.product_name}}</span></li>
<li><b>Product Manager:</b><span> {{dat.first_name}} {{dat.last_name}}</span></li>
<li><b>Description:</b><span> {{dat.description}}</span></li>
</ul>
<button style="background-color:#4C97C8;color:white;height:30px" class="btn buttonlike" ng-click="likebtn(dat.id,loginname)"><span class="glyphicon glyphicon-hand-right"></span><strong> Like</strong></button>
<button style="background-color:#4C97C8;color:white;height:30px" class="btn" ng-click="comment=true"><span class="glyphicon glyphicon-comment"></span><strong> Comment</strong></button>
<div class="input-group" ng-show="comment">
<input type="text" class="form-control" placeholder="comment" aria-describedby="basic-addon2">
<span class="input-group-addon" id="basic-addon2"><span class="glyphicon glyphicon-send"></span></span>
</div>
</div>
Instead of ng-click="mycomment()" and ng-show="comment1": ng-click="comment=true" and ng-show="comment" accordingly. $scope.comment1 and $scope.mycomment are not needed.