What is the best way to create a directive that wraps the div elements utilized in an ng-repeat loop?

Question

What is the best way to create a directive that wraps the div elements utilized in an ng-repeat loop?

When working on my application, I utilize this HTML snippet for an ng-repeat:

    <div class="gridBody">
        <div ng-class="{clicked: row.current == true}"
             ng-click="home.rowClicked($index)"
             ng-dblclick="ctrl.rowDoubleClicked(row)"
             ng-repeat="row in home.grid.view = (home.grid.data | orderBy:ctrl.examOrderBy[ctrl.configService.admin.examOrderBy].key:ctrl.configService.admin.examSortDirection) track by row.examId">

While I am familiar with creating template directives, I am unsure if it's possible to create a directive that calls another directive like how ng-repeat is called here. How would I go about creating a directive that allows me to use the code block in this manner:

    <div grid-body
         order="ctrl.examOrderBy[ctrl.configService.admin.examOrderBy].key"
         direction="ctrl.configService.admin.examSortDirection)"
         track="examId">

Essentially, I want a directive that combines the two <div>'s above into one. It seems like using transclude might be necessary, but I am unsure of how to implement it in this context as I couldn't find any relevant examples.

javascript angularjs angularjs-directive

Answer 1

Answer №1

If you want to achieve isolation, Isolate Scope is the way to go

Feel free to take a look at my Plunker example

In my code, I also utilize ng-repeat:

<div employeeform ng-repeat="emp in emplList" passed-model="emp">
</div>

I've created an attribute directive called employeeform with its own isolated scope and controller:

empApp.directive('employeeform', [
  function($compile) {

    function RowController($scope) {
      $scope.smyClass = "none";
      $scope.clickMe = function() {
        if ($scope.smyClass == "none") {
          $scope.smyClass = "clicked";
        } else {
          $scope.smyClass = "none";
        }
      };    
    }

    return {
      restrict: "A",
      controller: RowController,
      replace: true,
      scope: {
        passedModel: '='
      },
      templateUrl: "Employee.html"
    };
  }
]);

The template Employee.html contains references to the controller's local scope functions and smyClass property:

<div class="{{smyClass}}" ng-click="clickMe()" >
  <div style="display:inline-block; width: 100px;">{{ passedModel.name }}</div>
  <div style="display:inline-block; width: 100px;">{{ passedModel.position }}</div>
  <div style="display:inline-block; width: 100px;">{{ passedModel.salary }}</div>
</div>

In the absence of your data, I have constructed a basic tabular report. Clicking on a row changes its background to yellow, providing a simulation of toggling.

To summarize:

When a directive boasts a distinct local scope:

  scope: {
    passedModel: '='
  },

it remains independent from the parent scope except for the specified parameters (such as passedModel). This setup allows for the use of local variables to define the characteristics of each individual row (directive).

Answer 2

If you want to achieve isolation, Isolate Scope is the way to go

Feel free to take a look at my Plunker example

In my code, I also utilize ng-repeat:

<div employeeform ng-repeat="emp in emplList" passed-model="emp">
</div>

I've created an attribute directive called employeeform with its own isolated scope and controller:

empApp.directive('employeeform', [
  function($compile) {

    function RowController($scope) {
      $scope.smyClass = "none";
      $scope.clickMe = function() {
        if ($scope.smyClass == "none") {
          $scope.smyClass = "clicked";
        } else {
          $scope.smyClass = "none";
        }
      };    
    }

    return {
      restrict: "A",
      controller: RowController,
      replace: true,
      scope: {
        passedModel: '='
      },
      templateUrl: "Employee.html"
    };
  }
]);

The template Employee.html contains references to the controller's local scope functions and smyClass property:

<div class="{{smyClass}}" ng-click="clickMe()" >
  <div style="display:inline-block; width: 100px;">{{ passedModel.name }}</div>
  <div style="display:inline-block; width: 100px;">{{ passedModel.position }}</div>
  <div style="display:inline-block; width: 100px;">{{ passedModel.salary }}</div>
</div>

In the absence of your data, I have constructed a basic tabular report. Clicking on a row changes its background to yellow, providing a simulation of toggling.

To summarize:

When a directive boasts a distinct local scope:

  scope: {
    passedModel: '='
  },

it remains independent from the parent scope except for the specified parameters (such as passedModel). This setup allows for the use of local variables to define the characteristics of each individual row (directive).

What is the best way to create a directive that wraps the div elements utilized in an ng-repeat loop?

Answer №1

Feel free to take a look at my Plunker example

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