controller.js

'use strict';

angular.module('app')
  .controller('CreateWorkflowCtrl', function($scope, $location, Workflow, Category) {
    $scope.workflow = new Workflow();
    $scope.page = 0;
    
    $scope.create = function() {
      $scope.workflow.$save(function(data) {
        $location.path("/workflow/" + data.id);
      }, function(err) {
        $scope.$broadcast('error', error);
      });
    };
    
    $scope.updateCategories = function() {
      Category.query({ page: $scope.page }, function(data) {
        $scope.categories = data;
      }, function(err) {
        $scope.$broadcast('error', err);
      });
    }
    
    $scope.$watch('page', $scope.updateCategories);
    
    $scope.$on('error', function(error) {
      // TO DO: add validation warnings.
    });
  });

form.html

<form class="form-horizontal container" role="form" ng-submit="create()">
    <div class="form-group">
      <label for="name">Name</label>
      <input type="text" name="name" id="name" class="form-control"
        ng-model="workflow.name" ng-required ng-maxlength="1024"
      />
    </div>
    <h4>Categories</h4>
    <hr/>
    <div ng-switch="categories.num_results">
      <div ng-switch-when="0" class="text-center">
        <p class="text-muted">
          There are currently no categories available.
          You must make a category before you can make a workflow.
        </p>
        <a class="btn btn-default btn-large" href="/#/create/category">
          Make one now
        </a>
      </div>

      <div ng-switch-default>
        <div class="row">
          <div class="col-md-4">
            <div class="form-group" ng-repeat="category in categories.objects">
              <!-- HERE BE THE PROBLEM -->
            </div>
          </div>
        </div>
      </div>

    </div>

    <div class="text-center paging">
      <pagination
        ng-model="page"
        num-pages="categories.total_pages"
        total-items="categories.num_results"
      >
      </pagination>
    </div>

    <button type="submit" class="btn btn-large btn-success pull-right">
      Create
    </button>