What is the best way to bind a model to a directive in Angular.js?

Question

What is the best way to bind a model to a directive in Angular.js?

I have been experimenting with different methods to create a two-way binding between my directive and repeater, but so far I haven't been successful. Although I have tried various strategies suggested online, the current setup does not pass item.myDate to the template as required.

How can this be achieved?

HTML

<tr ng-repeat="item in items">          
    <td>
        <mydirective dateModel="item.myDate"></mydirective>
    </td>
</tr>

JS

app.directive("mydirective", function(){
   return {
      restrict:'E',
      scope:{dateModel: "&"},
      template:'<input class="date" ng-model="{{dateModel}}">',
   };
});

javascript angularjs

Answer 1

Answer №1

Make the following modifications.

1.

<mydirective date-model="item.myDate"></mydirective>

2.

app.directive("mydirective", function(){
   return {
      restrict:'E',
      scope:{dateModel: "="},
      template:'<input class="date" ng-model="dateModel">',
   };
});

For more information, please check out this Plunker link

Answer 2

Make the following modifications.

1.

<mydirective date-model="item.myDate"></mydirective>

2.

app.directive("mydirective", function(){
   return {
      restrict:'E',
      scope:{dateModel: "="},
      template:'<input class="date" ng-model="dateModel">',
   };
});

For more information, please check out this Plunker link

Answer 3

Answer №2

app.directive("customdirective", function(){
   return {
      restrict:'E',
      scope:{newDateModel: '='},// Make sure to update this part of your script
      template:'<input class="date-input" ng-model="{{newDateModel}}">',
   };
});

Answer 4

app.directive("customdirective", function(){
   return {
      restrict:'E',
      scope:{newDateModel: '='},// Make sure to update this part of your script
      template:'<input class="date-input" ng-model="{{newDateModel}}">',
   };
});

Answer 5

Answer №3

You can make it work by updating the scope variable to: {dateModel: "="}.

Answer 6

You can make it work by updating the scope variable to: {dateModel: "="}.

Answer 7

Answer №4

When creating a directive, you can customize it to have a different name for the template. Here's an example:

app.directive("customDirective", function(){
   return {
      restrict:'E',
      scope:{customDate: '@'},
      template:'<input class="date" ng-model="customDate">',
   };
});

If you want to use this directive with a different name in your HTML, like myCustomDate, follow this format:

HTML

<tr ng-repeat="item in items">          
    <td>
        <customDirective myCustomDate="item.myCustomDate"></customDirective>
    </td>
</tr>

JS

app.directive("customDirective", function(){
   return {
      restrict:'E',
      scope:{customDate: '@myCustomDate'},
      template:'<input class="date" ng-model="customDate">',
   };
});

Answer 8

When creating a directive, you can customize it to have a different name for the template. Here's an example:

app.directive("customDirective", function(){
   return {
      restrict:'E',
      scope:{customDate: '@'},
      template:'<input class="date" ng-model="customDate">',
   };
});

If you want to use this directive with a different name in your HTML, like myCustomDate, follow this format:

HTML

<tr ng-repeat="item in items">          
    <td>
        <customDirective myCustomDate="item.myCustomDate"></customDirective>
    </td>
</tr>

JS

app.directive("customDirective", function(){
   return {
      restrict:'E',
      scope:{customDate: '@myCustomDate'},
      template:'<input class="date" ng-model="customDate">',
   };
});

Answer 9

Answer №5

Kindly review this and also take a look at an interesting article on the same topic here. It will provide clarity on what you may be overlooking at the moment! This example effectively illustrates the distinctions:

<div ng-controller="MyCtrl">
  <h2>Parent Scope</h2>
  <input ng-model="foo"> <i>// Observe how parent scope interacts with component scope upon update.</i>
   <!-- attribute-foo binds to a DOM attribute which is always a string.
     Hence, we enclose it in curly braces for interpolation.-->
   <my-component attribute-foo="{{foo}}" binding-foo="foo"
    isolated-expression-foo="updateFoo(newFoo)" >
    <h2>Attribute</h2>
    <div>
        <strong>get:</strong> {{isolatedAttributeFoo}}
    </div>
    <div>
        <strong>set:</strong> <input ng-model="isolatedAttributeFoo">
        <i>// Changes here do not reflect in the parent scope.</i>
    </div>
    <h2>Binding</h2>
    <div>
        <strong>get:</strong> {{isolatedBindingFoo}}
    </div>
    <div>
        <strong>set:</strong> <input ng-model="isolatedBindingFoo">
        <i>// These updates do apply to the parent scope.</i>
    </div>
    <h2>Expression</h2>    
    <div>
        <input ng-model="isolatedFoo">
        <button class="btn" ng-click="isolatedExpressionFoo({newFoo:isolatedFoo})">Submit</button>
        <i>// This triggers a function call in the parent scope as well.</i>
    </div>
  </my-component>
 </div>

var myModule = angular.module('myModule', [])
  .directive('myComponent', function () {
    return {
        restrict:'E',
        scope:{
            /* NOTE: Usually, attributes and bindings are named identically,
            but here they are distinguished between
            parent and isolated scope. */                
            isolatedAttributeFoo:'@attributeFoo',
            isolatedBindingFoo:'=bindingFoo',
            isolatedExpressionFoo:'&'
        }        
    };
   })
   .controller('MyCtrl', ['$scope', function ($scope) {
    $scope.foo = 'Hello!';
    $scope.updateFoo = function (newFoo) {
        $scope.foo = newFoo;
    }
}]);

Answer 10

Kindly review this and also take a look at an interesting article on the same topic here. It will provide clarity on what you may be overlooking at the moment! This example effectively illustrates the distinctions:

<div ng-controller="MyCtrl">
  <h2>Parent Scope</h2>
  <input ng-model="foo"> <i>// Observe how parent scope interacts with component scope upon update.</i>
   <!-- attribute-foo binds to a DOM attribute which is always a string.
     Hence, we enclose it in curly braces for interpolation.-->
   <my-component attribute-foo="{{foo}}" binding-foo="foo"
    isolated-expression-foo="updateFoo(newFoo)" >
    <h2>Attribute</h2>
    <div>
        <strong>get:</strong> {{isolatedAttributeFoo}}
    </div>
    <div>
        <strong>set:</strong> <input ng-model="isolatedAttributeFoo">
        <i>// Changes here do not reflect in the parent scope.</i>
    </div>
    <h2>Binding</h2>
    <div>
        <strong>get:</strong> {{isolatedBindingFoo}}
    </div>
    <div>
        <strong>set:</strong> <input ng-model="isolatedBindingFoo">
        <i>// These updates do apply to the parent scope.</i>
    </div>
    <h2>Expression</h2>    
    <div>
        <input ng-model="isolatedFoo">
        <button class="btn" ng-click="isolatedExpressionFoo({newFoo:isolatedFoo})">Submit</button>
        <i>// This triggers a function call in the parent scope as well.</i>
    </div>
  </my-component>
 </div>

var myModule = angular.module('myModule', [])
  .directive('myComponent', function () {
    return {
        restrict:'E',
        scope:{
            /* NOTE: Usually, attributes and bindings are named identically,
            but here they are distinguished between
            parent and isolated scope. */                
            isolatedAttributeFoo:'@attributeFoo',
            isolatedBindingFoo:'=bindingFoo',
            isolatedExpressionFoo:'&'
        }        
    };
   })
   .controller('MyCtrl', ['$scope', function ($scope) {
    $scope.foo = 'Hello!';
    $scope.updateFoo = function (newFoo) {
        $scope.foo = newFoo;
    }
}]);

What is the best way to bind a model to a directive in Angular.js?

Answer №1

Answer №2

Answer №3

Answer №4

Answer №5

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