Add, Remove & Update specific data In JSON in AngularJS

Question

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. 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 1

Here is my approach to this requirement. Let me know if any further improvement can be added. The entire code can be found at the below URL:

Angular Save, Update and Delete

The sample screenshots from the code can be found here...

controller:


'use strict';

function MainController($scope, SharedService, ngDialog) {

  $scope.account_type_selected = "Savings";
  $scope.sharedService = SharedService;
  $scope.savingsMain = [];
  $scope.checkingsMain = [];
  $scope.addToCheckingsAccounts = {};
  $scope.addToSavingsAccounts = {};


  $scope.setAccountType = function (type) {
    if (type === "allAccounts") {
      $scope.showSavings = true;
      $scope.showCheckings = true;
    } else if (type === "savingsAccounts") {
      $scope.showSavings = true;
      $scope.showCheckings = false;
    } else if (type === "checkingAccounts") {
      $scope.showSavings = false;
      $scope.showCheckings = true;
    }
    $scope.account_type_selected = type;
  };

  $scope.$watch('savingsMain', function ($scope) {
    return $scope.savingsMain;
  });

  $scope.selectedAccountType = function (showAccount) {
    console.log(showAccount);
    if (showAccount === "Savings") {
      $scope.sharedService.accountType = "Savings";
    } else {
      $scope.sharedService.accountType = "Checkings";
    }
  };


  $scope.saveAccounts = function () {
    if ($scope.sharedService.accountType === "Savings") {
      $scope.addToSavingsAccounts = {
        "account_type": $scope.sharedService.accountType,
        "amount": $scope.sharedService.amount,
        "date": $scope.sharedService.date,
        "maturity": $scope.sharedService.maturity
      };
      $scope.showSavings = true;

      $scope.savingsMain.push($scope.addToSavingsAccounts);
    } else {
      $scope.addToCheckingsAccounts = {
        "account_type": $scope.sharedService.accountType,
        "amount": $scope.sharedService.amount,
        "bic": $scope.sharedService.BIC,
        "iban": $scope.sharedService.IBAN
      };
      $scope.showCheckings = true;
      $scope.checkingsMain.push($scope.addToCheckingsAccounts);

    }
    ngDialog.close();

  };

  $scope.deleteDataFromSharedService = function (accountType, item) {
    if (accountType === "Savings") {
      $scope.savingsMain = _.without($scope.savingsMain, _.findWhere($scope.savingsMain, { date: item }));
    } else if (accountType === "Checkings") {
      $scope.checkingsMain = _.without($scope.checkingsMain, _.findWhere($scope.checkingsMain, { bic: item }));
    }
  };

  $scope.closeDialog = function () {
    ngDialog.close();
  };

  $scope.accountTypeModel = [];


  $scope.prop = {
    "type": "select",
    "name": "account_type",
    "value": $scope.sharedService.accountType,
    "accountTypeData": ["Savings", "Checkings"]
  };

}

<form ng-controller="MainController">
  <div class="page-header">
    <h1>Angular-Save-Update-Delete</h1>
  </div>
  <div class="content-wrapper">
    <div class="sidebar">
      <table>
        <tbody>
          <tr>
            <td>
              <button ng-click="setAccountType('allAccounts')" ng-model="allAccounts" class="ng-pristine ng-untouched ng-valid ng-empty">All</button>
            </td>
          </tr>

          <tr>
            <td>
              <button ng-click="setAccountType('savingsAccounts')" ng-model="savingsMain" class="ng-pristine ng-valid ng-not-empty ng-touched">Savings</button>
            </td>
          </tr>
          <tr>
            <td>
              <button ng-click="setAccountType('checkingAccounts')" ng-model="checkingsMain" class="ng-pristine ng-untouched ng-valid ng-not-empty">Checkings</button>
            </td>
          </tr>
          <tr>
            <td>
              <button class="create-account-btn-class" 
              type="button" 
              ng-dialog="app/views/create-account-template.html" 
              ng-dialog-data="" 
              ng-dialog-class="ngdialog-theme-default" 
              ng-dialog-scope="this" 
              plain=false
              showClose=true
              closeByDocument=true
              closeByEscape=true
              ng-dialog-show-close="false">New Account</button>
            </td>
          </tr>
        </tbody>
      </table>
    </div>
    <div class="right-content">
      <div id="savingsTemplate" templateurl="app/views/savings.html" ng-show="showSavings" include-template=""></div>
      <div id="checkingsTemplate" templateurl="app/views/checkings.html" ng-show="showCheckings" include-template=""></div>

    </div>
  </div>


</form>

Answer 2

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.