Utilizing ng-repeat and ng-controller for displaying individual items

Question

Utilizing ng-repeat and ng-controller for displaying individual items

I am currently working on assigning a controller to each item in a list in order to manipulate the data of each list item individually. The information displayed will vary for each item.

<div ng-repeat="item in items" ng-controller="ItemController">
    {{item.name}}
    <select ng-model="selectedSystem" ng-options="system.name for system in systems">
    <button ng-click="dosomething()">do something</button>
</div>

Is there a way to access the item within the ItemController? I want to be able to customize the list of systems based on the specific item being accessed inside the ItemController.

Is it possible to move all the content inside the divs into a template when using ng-repeat?

Thank you!

javascript angularjs angularjs-ng-repeat angularjs-controller

Answer 1

Answer №1

Thanks to the directive solution recommended by (@charlietfl and eddiec), I was able to successfully resolve the problem.

Answer 2

Thanks to the directive solution recommended by (@charlietfl and eddiec), I was able to successfully resolve the problem.

Answer 3

Answer №2

In my experience, it's not recommended to add multiple controllers for each item in an array. It's important to consider where your items are defined. You likely have a parent controller where the array is requested from a service or statically defined.

If you need access to the item inside the item controller, you can simply pass it into your "doSomething()" function. Here is an example of how you could structure your Controller:

$scope.items = [
  {
    name: "Name1",
    systems: [
      {name: 'System 1'},
      {name: 'System 2'},
      {name: 'System 3'}
    ]
  },
  {
    name: "Name2",
    systems: [
      {name: 'System 4'},
      {name: 'System 5'},
      {name: 'System 6'}
    ]
  }
];

$scope.doSomething = function(item){
  console.log(item);
}

And here is the corresponding HTML code:

<div ng-controller="someController">
  <div ng-repeat="item in items">
      {{item.name}}
      <select ng-model="selectedSystem" ng-options="system.name for system in item.systems"></select>
      <button ng-click="doSomething(item)">do something</button>
  </div>
</div>

This setup will display a list of drop-down menus with corresponding systems and buttons that print out the selected item. Avoid using a controller per item and remember to maintain proper indentation and use camelCase for functions for readability.

Answer 4

In my experience, it's not recommended to add multiple controllers for each item in an array. It's important to consider where your items are defined. You likely have a parent controller where the array is requested from a service or statically defined.

If you need access to the item inside the item controller, you can simply pass it into your "doSomething()" function. Here is an example of how you could structure your Controller:

$scope.items = [
  {
    name: "Name1",
    systems: [
      {name: 'System 1'},
      {name: 'System 2'},
      {name: 'System 3'}
    ]
  },
  {
    name: "Name2",
    systems: [
      {name: 'System 4'},
      {name: 'System 5'},
      {name: 'System 6'}
    ]
  }
];

$scope.doSomething = function(item){
  console.log(item);
}

And here is the corresponding HTML code:

<div ng-controller="someController">
  <div ng-repeat="item in items">
      {{item.name}}
      <select ng-model="selectedSystem" ng-options="system.name for system in item.systems"></select>
      <button ng-click="doSomething(item)">do something</button>
  </div>
</div>

This setup will display a list of drop-down menus with corresponding systems and buttons that print out the selected item. Avoid using a controller per item and remember to maintain proper indentation and use camelCase for functions for readability.

Utilizing ng-repeat and ng-controller for displaying individual items

Answer №1

Answer №2

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