AngularJS ng-options to exclude specific object

Question

I'm using angular ng-options to show a with several options as the choices of parent category of the current category, basically these options contain all the existing categories, and I need to exclude the current category from ng-options, which quite make sense because a category cannot be the parent category of itself. So how do I do that? Currently I have the following code:

<tr ng-repeat="category in allCategories">
    <th ng-bind="category.name"></th>
    <th>
        <select ng-options="everyCategory.name for everyCategory in allCategories">
            <option value="">Select parent category</option>
        </select>
    </th>
</tr>

Answer 1

You should use filter.

<select ng-options="everyCategory.name for everyCategory in allCategories | filter: { name: '!' + category.name }">...</select>

Answer 2

You could use a filter

<tr ng-repeat="category in allCategories">
  <th>{{category.name}}</th>
  <th>
    <select ng-options="everyCategory.name for everyCategory in allCategories | filter: {name: '!' + category.name}" ng-model="somthing">
      <option value="">Select parent category</option>
    </select>
  </th>
</tr>

I've created a small fiddle with a exmaple of how to use it: http://jsfiddle.net/krausekjaer/tnqrqk2w/3/