user422831 user422831 - 5 months ago 376
AngularJS Question

Add, Remove & Update specific data In JSON in AngularJS

I have pulled data from json file. Now its displayed over DOM.
On HTML Page, I have three option 1) Edit Data 2) Delete Particular Data & 3) Add New Data.

How to perform this using AngularJS Code? i.e. on editing name, it should update my JSON object. On Deleting row, it should delete that row in JSON data. and also If I click on Add New, then entered data will be added to JSON.

My Code is as below.
Importing data through json file and displaying on DOM

.controller('MainCtrl', function ($scope, $http) {
$http.get('data/home.json').
success(function(data, status, headers, config) {
$scope.details = data;
}).
error(function(data, status, headers, config) {
// log error
});
});


Output of this code is correct as below image.
enter image description here
JSON Object as below.

{
"status":"success",
"adformat":[
{
"adformat_id":1,
"name":"Format 1",
"size":"300x250"
},
{
"adformat_id":2,
"name":"Format 2",
"size":"320x250"
},
{
"adformat_id":3,
"name":"Format 3",
"size":"320x480"
}
]
}

Answer

I would do it like this:

MainCtrl.js

(function () {
    'use strict';

    angular
            .module('app')
            .controller('MainCtrl', MainCtrl);

    MainCtrl.$inject = ['$scope', 'MainFactory'];

    function MainCtrl($scope, MainFactory) {

        $scope.details = MainFactory.details;

        function init() {
            MainFactory.get();
        }

        init();

        $scope.detailsModel = {
            "adformat_id": 1,
            "name": "Format 1",
            "size": "300x250"
        };

        $scope.add = function () {
            $scope.details.push($scope.detailsModel);
        };

        $scope.delete = function (index) {
            $scope.details.splice(index, 1);
        };

        $scope.edited = -1;
        $scope.editedModel = {
            "adformat_id": 0,
            "name": "",
            "size": ""
        };

        $scope.edit = function (index) {
            $scope.edited = index;
        };

        $scope.finishEdit = function (index) {
            $scope.details[index] = $scope.editedModel;
            $scope.edited = -1;
        };
    }
})();

MainFactory.js

(function () {
    'use strict';

    angular
            .module('app')
            .factory('MainFactory', MainFactory);

    MainFactory.$inject = [];

    function MainFactory() {

        var self = this;

        self.details = [];
        self.get = $http.get('data/home.json')
                .then(function (response) {
                    self.details = response.data;
                }).catch(function (error) {
                    // log error
                });

        return self;
    }
})();

index.html

<div ng-app="app">
    <div ng-controller="MainCtrl">
        <table>
            <tbody>
            <tr ng-repeat="details in detail">
                <!-- show-->
                <td ng-hide="edited === $index">{{detail.adformat_id}}</td>
                <td ng-hide="edited === $index">{{detail.name}}</td>
                <td ng-hide="edited === $index">{{detail.size}}</td>
                <td ng-hide="edited === $index">
                    <button ng-click="edit($index)">Edit</button>
                    <button ng-click="delete($index)">Detele</button>
                </td>
                <!-- Edit-->
                <td ng-show="edited === $index">{{detail.adformat_id}}</td>
                <td ng-show="edited === $index"><input type="text" ng-model="editedModel.name"></td>
                <td ng-show="edited === $index"><input type="number" ng-model="editedModel.size"></td>
                <td ng-show="edited === $index">
                    <button ng-click="finishEdit($index, editedModel)">Save</button>
                    <button ng-click="delete($index)">Detele</button>
                </td>
            </tr>
            </tbody>
            <tfoot>
            <tr>
                <td>
                    <button ng-click="add()">Add</button>
                </td>
            </tr>
            </tfoot>
        </table>
    </div>
</div>

It is just prototype, not tested, but it should help you to understand idea o two way binding in angular.