Creating bespoke form components with AngularJS

Question

Creating bespoke form components with AngularJS

I am looking to develop a unique form element that functions in the same way as traditional form elements in terms of validation and value, but with an object as its value.

For instance, I want to create a "birthday element" that, when clicked, displays a popup with two selects for month and day (similar to a date picker). The value retrieved from this element should be in the format {month: 8, day: 21}. Furthermore, when submitted to the server, the data should be sent as multiple fields.

Other potential use cases include personName (firstName, lastName) and price (amount, currency).

How can I approach implementing such a feature in AngularJS?

The examples, tutorials, and documentation I have come across so far do not address this specific and complex task.

javascript angularjs angularjs-directive

Answer 1

Answer №1

If you want to efficiently manage the data (state) for your form, consider using a dedicated service like this:

angular.module('myAppName').service('myFormService', ['$http', function($http){

    var formState = {
        FirstName: '',
        LastName: '',
        Birthday: null
    };

    // You can include additional methods such as reset and save here
    function reset() { formState.FirstName = ''; etc... }
    function save() { $http.post(...); }

    // This creates a singleton that remains active across all pages
    return {
        FormState: formState,
        Reset: reset,
        Save: save
    };

}]);

To handle different sections of your form, create directives like this:

angular.module('myAppName').directive('birthdayPicker', ['myFormService', function(myFormService){

    function link(scope, element, attrs){
        // Bind data to this in your HTML
        scope.birthday = myFormService.Birthday
    }

    return {
        restrict: 'A',
        templateUrl: 'path/to/birthdayPicker.html',
        link: link
    };
}]);

In your template HTML file:

<div>
    <input type="text" data-ng-model="birthday" />
</div>

Include your directive in your main HTML file like so:

<div>
    <div data-birthday-picker=""></div>
</div>

When you're ready to submit the form state to the server, simply use:

$http.post('/someUrl', myFormService.FormState).success(successCallback);

Some additional tips:

Consider using require.js for module separation and script tag management
Test your code regularly - a test-first approach often leads to better designs

Answer 2

If you want to efficiently manage the data (state) for your form, consider using a dedicated service like this:

angular.module('myAppName').service('myFormService', ['$http', function($http){

    var formState = {
        FirstName: '',
        LastName: '',
        Birthday: null
    };

    // You can include additional methods such as reset and save here
    function reset() { formState.FirstName = ''; etc... }
    function save() { $http.post(...); }

    // This creates a singleton that remains active across all pages
    return {
        FormState: formState,
        Reset: reset,
        Save: save
    };

}]);

To handle different sections of your form, create directives like this:

angular.module('myAppName').directive('birthdayPicker', ['myFormService', function(myFormService){

    function link(scope, element, attrs){
        // Bind data to this in your HTML
        scope.birthday = myFormService.Birthday
    }

    return {
        restrict: 'A',
        templateUrl: 'path/to/birthdayPicker.html',
        link: link
    };
}]);

In your template HTML file:

<div>
    <input type="text" data-ng-model="birthday" />
</div>

Include your directive in your main HTML file like so:

<div>
    <div data-birthday-picker=""></div>
</div>

When you're ready to submit the form state to the server, simply use:

$http.post('/someUrl', myFormService.FormState).success(successCallback);

Some additional tips:

Consider using require.js for module separation and script tag management
Test your code regularly - a test-first approach often leads to better designs

Creating bespoke form components with AngularJS

Answer №1

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