Utilizing AngularJS with multiple dynamically generated forms on a webpage: Extracting data from each form

Question

Utilizing AngularJS with multiple dynamically generated forms on a webpage: Extracting data from each form

I am facing a challenge with a web page I have created that uses PHP to generate forms for updating information via a REST API on a remote server.

The structure of the forms is as follows:

Textfield: name
textfield: description
select: type (ng-model="selection")
  option a
  option b
  option c
textfields f1, f2, f3: some may be hidden based on selection.
button triggers AngularJS function update() when clicked.

There are several of these forms scattered throughout the page. How can I retrieve the data entered into these fields to pass it to the update() function using AngularJS? My initial thought was to use JavaScript getElementById method, but I believe there must be a more elegant solution available.

javascript angularjs forms

Answer 1

Answer №1

When working with AngularJS, you have the ability to connect data to your form using the ng-model attribute.

Take a look at this example snippet from the documentation:

<form novalidate class="simple-form">
    Name: <input type="text" ng-model="user.name" /><br />
    E-mail: <input type="email" ng-model="user.email" /><br />
    Gender: <input type="radio" ng-model="user.gender" value="male" />male
    <input type="radio" ng-model="user.gender" value="female" />female<br />
    <input type="button" ng-click="reset()" value="Reset" />
    <input type="submit" ng-click="update(user)" value="Save" />
  </form>

http://plnkr.co/edit/qr1HdCqgr7jvf5aR0Gb2?p=preview

It is recommended to have models structured within one object, where each field represents a property of that object (for instance, user.email in the above example).

Subsequently, within your controller, you can easily access the form values by referencing the corresponding scope variable (e.g., $scope.user).

Answer 2

When working with AngularJS, you have the ability to connect data to your form using the ng-model attribute.

Take a look at this example snippet from the documentation:

<form novalidate class="simple-form">
    Name: <input type="text" ng-model="user.name" /><br />
    E-mail: <input type="email" ng-model="user.email" /><br />
    Gender: <input type="radio" ng-model="user.gender" value="male" />male
    <input type="radio" ng-model="user.gender" value="female" />female<br />
    <input type="button" ng-click="reset()" value="Reset" />
    <input type="submit" ng-click="update(user)" value="Save" />
  </form>

http://plnkr.co/edit/qr1HdCqgr7jvf5aR0Gb2?p=preview

It is recommended to have models structured within one object, where each field represents a property of that object (for instance, user.email in the above example).

Subsequently, within your controller, you can easily access the form values by referencing the corresponding scope variable (e.g., $scope.user).

Answer 3

Answer №2

To assign data to each field in a form, you can utilize the ng-model directive. When updating, you can retrieve this data from the $scope object.

For example:

<input type="text" ng-model="form1.name">
<input type="text" ng-model="form1.description">
...
...

<input type="text" ng-model="form2.name">
<input type="text" ng-model="form2.description">

JavaScript:

Within the update method, you can access the data using $scope.form1.name, $scope.form1.description.

Answer 4

To assign data to each field in a form, you can utilize the ng-model directive. When updating, you can retrieve this data from the $scope object.

For example:

<input type="text" ng-model="form1.name">
<input type="text" ng-model="form1.description">
...
...

<input type="text" ng-model="form2.name">
<input type="text" ng-model="form2.description">

JavaScript:

Within the update method, you can access the data using $scope.form1.name, $scope.form1.description.

Answer 5

Answer №3

If you want to create tabs for each form, where clicking on a tab opens the corresponding element for editing without knowing the total number of elements in advance, you can use this approach.

<div ng-app>
    <article ng-controller="AplicationCtrl">
        <ul>
            <li ng-repeat="item in items">
                <a href="javascript:;" ng-click="changeSelected($index)">Tabs {{$index}}</a>
            </li>
        </ul>
        <br/>
       <div>
           <input ng-model="selectedItem.name"/>
           <input ng-model="selectedItem.description"/>
        </div>

        <a href="javascript:;" ng-click="update()">Update values</a>
    </article>
</div>

function AplicationCtrl($scope) {
    $scope.items = [
        {
            name: 'this is name1',
            description: 'desc 1'
        },
        {
            name: 'this is name 2',
            description: 'desc 2'
        },
        {
            name: 'this is name 3',
            description: 'desc 4'
        }
    ]

    $scope.changeSelected = function (index) {
        $scope.selectedItem = $scope.items[index];
    }

    $scope.changeSelected(0);

    $scope.update = function () {
        console.log($scope.items);
    }
}

You can view an example here: http://jsfiddle.net/9c567te7/

Answer 6

If you want to create tabs for each form, where clicking on a tab opens the corresponding element for editing without knowing the total number of elements in advance, you can use this approach.

<div ng-app>
    <article ng-controller="AplicationCtrl">
        <ul>
            <li ng-repeat="item in items">
                <a href="javascript:;" ng-click="changeSelected($index)">Tabs {{$index}}</a>
            </li>
        </ul>
        <br/>
       <div>
           <input ng-model="selectedItem.name"/>
           <input ng-model="selectedItem.description"/>
        </div>

        <a href="javascript:;" ng-click="update()">Update values</a>
    </article>
</div>

function AplicationCtrl($scope) {
    $scope.items = [
        {
            name: 'this is name1',
            description: 'desc 1'
        },
        {
            name: 'this is name 2',
            description: 'desc 2'
        },
        {
            name: 'this is name 3',
            description: 'desc 4'
        }
    ]

    $scope.changeSelected = function (index) {
        $scope.selectedItem = $scope.items[index];
    }

    $scope.changeSelected(0);

    $scope.update = function () {
        console.log($scope.items);
    }
}

You can view an example here: http://jsfiddle.net/9c567te7/

Utilizing AngularJS with multiple dynamically generated forms on a webpage: Extracting data from each form

Answer №1

Answer №2

Answer №3

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