How to implement a system for user feedback and rating in AngularJS?
13/03/2024
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5
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Here is a step-by-step guide to implementing a system for user feedback and rating in AngularJS:
Step 1: Include AngularJS and ngRateIt external library in your HTML file
First up, we need to include AngularJS library and an external library ngRateIt, which will enable the rating functionality for us. Add these lines of code to your HTML file:
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.9/angular.min.js"></script>
<script src="https://raw.githubusercontent.com/akempes/angular-rateit/master/dist/angular-rateit.min.js"></script>
<link rel="stylesheet" href="https://raw.githubusercontent.com/gjunge/rateit.js/master/scripts/rateit.css" type="text/css" media="screen" />
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Please note that the versions of the libraries might change, so you need to use the latest versions available.
Step 2: Initialize an AngularJS application
The next step is to initialize an AngularJS application using ng-app directive:
<body ng-app="feedbackApp">
Step 3: Create and define an AngularJS module
Now, you need to create an AngularJS module and define the feedbackApp (as mentioned in ng-app) and the dependencies ngRateIt in a script tag:
<script>
var app = angular.module('feedbackApp', ['ngRateIt']);
</script>
Step 4: Create and define an AngularJS controller
Add a controller to the AngularJS module, and define a model for rating and an array for feedback in the controller's scope:
<script>
app.controller('feedbackCtrl', function($scope) {
$scope.rating = 0;
$scope.feedback = [];
$scope.submitFeedback = function() {
$scope.feedback.push({rate: $scope.rating, comment: $scope.comment});
$scope.rating = 0;
$scope.comment = "";
}
});
</script>
In the above code, submitFeedback function is used to push the rating and comments to feedback array, and then reset the rating and comment field.
Step 5: Create HTML form for feedback
Below the script tag, create a div with the controller directive and create a form inside of it for feedback:
<div ng-controller="feedbackCtrl">
<form name="feedbackForm" ng-submit="feedbackForm.$valid && submitFeedback()" novalidate>
<div>
<h3>Rate Us:</h3>
<input rate-it ng-model="rating" max="5"></input>
</div>
<h3>Your Comments:</h3>
<textarea ng-model="comment" required></textarea>
<button type="submit">Submit</button>
</form>
</div>
In the form, we have a rating field with ngRateIt directive and a comment textarea.
When user clicks on the 'Submit' button, it will only submit if the form is valid (i.e., the comment textarea is not empty because it's required) and submitFeedback function is called.
Step 6: Display the feedback
To display the feedback, you can simply use the ng-repeat directive to loop through the feedback array:
<div ng-controller="feedbackCtrl">
<!-- feedback form code -->
<h3>Feedback:</h3>
<div ng-repeat="item in feedback track by $index">
<p>Rating: {{item.rate}} Comment: {{item.comment}}</p>
</div>
</div>
With these steps, you can create a basic user feedback and rating system using AngularJS and ngRateIt library.
Note: This is a basic and rudimentary implementation and in actual applications, you would probably use a backend server to persist the ratings and feedback data.
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