I have a web application developed using AngularJS and Rails that carries out RESTful operations like create, read, and delete.
After deleting an item, I need to refresh the page and update the view asynchronously. However, I am facing challenges in implementing this due to an error:
Cannot read property 'success' of undefinedHere is a snippet from my app.js file:
//= require angular-rails-templates
//= require_tree .
angular.module('d-angular', ['ui.router', 'templates'])
// Set routing/configuration
// ------------------------------
.config(['$stateProvider', '$urlRouterProvider',
// Setting up state providers
function($stateProvider, $urlRouterProvider) {$stateProvider
// Home state
.state('home', {
url: '/home',
templateUrl: 'home.html',
controller: 'MainCtrl',
resolve: {
listPromise: ['lists', function(lists){
return lists.getAll();
}]
}
})
$urlRouterProvider.otherwise('home');
}
])
// Lists factory section
.factory('lists', ['$http',
function($http){
var o = { lists: [] };
o.getAll = function() {
return $http.get('/lists.json').success(function(data){
angular.copy(data, o.lists);
});
};
o.get = function(id) {
return $http.get('/lists/' + id + '.json').then(function(res){
return res.data;
});
};
o.create = function(post) {
return $http.post('/lists.json', post).success(function(data){
o.lists.push(data);
});
};
o.delete = function(id) {
$http.delete('/lists/' + id + '.json');
}
o.addWord = function(id, word) {
return $http.post('/lists/' + id + '/words.json', word);
};
o.deleteWord = function(id, word) {
$http.delete('/lists/' + id + '/words/' + word + '.json');
}
return o;
}
])
// Main controller section
.controller('MainCtrl', ['$scope', '$stateParams', 'lists', '$http',
function($scope, $stateParams, lists, $http) {
$scope.lists = lists.lists;
$scope.list = lists.lists[$stateParams.id];
$scope.addList = function(){
if(!$scope.title || $scope.title === '') {
return;
}
lists.create({
title: $scope.title,
date: new Date().toJSON().slice(0,10),
});
$scope.title = '';
};
$scope.deleteList = function() {
lists.delete($scope.list.id).then(function(){
$scope.lists.splice(index, 1)
});
};
$scope.addWord = function(){
lists.addWord($scope.list.id, {
title: $scope.word,
date: new Date().toJSON().slice(0,10),
})
.success(function(word) {
$scope.list.words.push(word);
});
});
};
$scope.deleteWord = function(word_id) {
lists.deleteWord($scope.list.id, word_id);
};
}
]);
View Section:
<div ng-controller="MainCtrl">
<form ng-submit="addList()">
<input type="text" ng-model="title" placeholder="Enter list"></input>
<button type="submit">Add</button>
</form>
<select ng-model="list" ng-options="list as list.title for list in lists">
<option value="">Select List</option>
</select>
<form ng-submit="deleteList()">
<button type="submit">Delete</button>
</form>
<hr>
{{list.id}}
<form ng-submit="addWord()">
<input type="text" ng-model="word"></input>
<button type="submit">Add</button>
</form>
<div ng-repeat="word in list.words">
{{word.title}}
{{word.id}}
<form ng-submit="deleteWord(word.id)">
<button type="submit">Delete</button>
</form>
</div>