SQLite Remove Row Using AngularJS Source Code

Submitted by razormist on Tuesday, March 10, 2020 - 15:14.

In this tutorial we will create a SQLite Remove Row using AngularJS. This code will remove table row data with the use of Angular directive when the user click the delete button. The code use angular directives to remove table row that will send a GET request to the SQLite query in order to remove the data in the database server. This a user-friendly program feel free to modify and use it to your system. We will be using AngularJS as a framework which has additional custom HTML attributes embedded into it. It can interprets those attributes as directives to bind inputted parts of the page to a model that represent as a standard JavaScript variables.

Getting Started:

First you have to download & install XAMPP or any local server that run PHP scripts. Here's the link for XAMPP server https://www.apachefriends.org/index.html. And this is the link for the bootstrap that i used for the layout design https://getbootstrap.com/. Lastly, this is the link for the AngularJS https://angularjs.org/. Installing SQLite Browser We will now then install the SQLite data viewer, here's the link for the DB Browser for SQLite http://sqlitebrowser.org/.

Setting Up SQLite

First, we are going to enable SQLite 3 in our PHP.

Open localhost server folder XAMPP, etc and locate php.ini.
Open php.ini and enable sqlite3 by removing the semicolon in the line.
Save changes and Restart Server.

Creating the database connection

Open your any kind of text editor(notepad++, etc..). Then just copy/paste the code below then name it conn.php.

<?php
        $conn=new SQLite3('db/db_member') or die("Unable to open database!");
        $query="CREATE TABLE IF NOT EXISTS `member`(mem_id INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, firstname TEXT, lastname TEXT, address TEXT)";
        
        $conn->exec($query);
?>

Creating The Interface

This is where we will create a simple form for our application. To create the forms simply copy and write it into you text editor, then save it as index.php.

<!DOCTYPE html>
<html lang="en" ng-app="myModule">
        <head>
                <meta charset="UTF-8" name="viewport" content="width=device-width, initial-scale=1"/>
                <link rel="stylesheet" type="text/css" href="css/bootstrap.css"/>
        </head>
<body ng-controller="myController">
        <nav class="navbar navbar-default">
                <div class="container-fluid">
                        <a class="navbar-brand" href="https://sourcecodester.com">Sourcecodester</a>
                </div>
        </nav>
        <div class="col-md-3"></div>
        <div class="col-md-6 well">     
                <h3 class="text-primary">SQLite Remove Row Using AngularJS Source Code</h3> 
                <hr style="border-top:1px dotted #ccc;"/>
                <div class="col-md-4">
                        <form>
                                <div class="form-group">
                                        <label>Firstname</label>
                                        <input type="text" class="form-control" ng-model="firstname"/>
                                </div>
                                <div class="form-group">
                                        <label>Lastname</label>
                                        <input type="text" class="form-control" ng-model="lastname"/>
                                </div>
                                <div class="form-group">
                                        <label>Address</label>
                                        <input type="text" class="form-control" ng-model="address"/>
                                </div>
                                <center><button type = "button" class = "btn btn-primary" ng-click = "saveData()" ><span class = "glyphicon glyphicon-save"></span> Save</button></center>
                        </form>
                </div>
                <div class="col-md-8">
                <table class="table table-bordered">
                        <thead class="alert-info">
                                <tr>
                                        <th>Firstname</th>
                                        <th>Lastname</th>
                                        <th>Address</th>
                                        <th>Action</th>
                                </tr>
                        </thead>
                        <tbody>
                                <tr ng-repeat="member in members | orderBy: 'lastname'">
                                        <td>{{member.firstname}}</td>
                                        <td>{{member.lastname}}</td>
                                        <td>{{member.address}}</td>
                                        <td><button class="btn btn-danger" ng-click="removeRow(member.mem_id)">Delete</button></td>
                                </tr>
                        </tbody>
                </table>
                </div>
        </div>
<script src="js/angular.js"></script>
<script src="js/script.js"></script>
</body>
</html>

Creating the Main Function

This code contains the main function of the application. This code will update a table row with AngularJS directive when the button is clicked. To do this just copy and write these block of codes as shown below inside the text editor and save it as shown below. save.php

<?php
        require_once'conn.php';
        $data = json_decode(file_get_contents("php://input"));
        
        $firstname = $data->firstname;
        $lastname = $data->lastname;
        $address = $data->address;
        
        $query="INSERT INTO `member` (firstname, lastname, address) VALUES('$firstname', '$lastname', '$address')";
                
        $conn->exec($query);
        
?>

remove.php

<?php
        require_once'conn.php';
        $data = json_decode(file_get_contents("php://input"));
        
        $mem_id = $data->mem_id;
        
        
        $conn->query("DELETE FROM `member` WHERE `mem_id`='$mem_id'") or die("Failed to delete a row!");
        
?>
\

data.php

<?php
        require_once 'conn.php';
 
        $data = array();
 
                                                
        $query=$conn->query("SELECT * FROM `member`") or die("Failed to fetch row!");
        while($fetch=$query->fetchArray()){
                $data[] = $fetch;
        }
        echo json_encode($data);
 
?>

script.js Note: Make sure you save this file inside the js directory in order the script works.

var app = angular.module("myModule", [])
                        .controller("myController", function($scope, $http){
                                $http.get('data.php').then(function(response){
                                        $scope.members = response.data;
                                });
                                
                                $scope.init;
                        
                                
                                $scope.getData = function(){
                                        $http.get('data.php').then(function(response){
                                                $scope.members = response.data;
                                        });
                                }
                        
                                
                                $scope.saveData = function(){
                                        if($scope.firstname == null || $scope.lastname == null || $scope.address == null){
                                                alert("Please complete the required field");
                                        }else{
                                                $http.post("save.php", {firstname: $scope.firstname, lastname: $scope.lastname, address: $scope.address})
                                                .then(function(){
                                                        $scope.firstname = "";
                                                        $scope.lastname = "";
                                                        $scope.address = "";
                                                        $scope.getData();
                                                });     
                                        }
                                        
                                }
                                        
                                $scope.removeRow = function(id){
                                        $http.post("remove.php", {mem_id: id})
                                                .then(function(){
                                                        $scope.getData();
                                                });     
                                }       
                        
                        });

There you have it we successfully created a SQLite Remove Row using AngularJS. I hope that this simple tutorial help you to what you are looking for. For more updates and tutorials just kindly visit this site. Enjoy Coding!!

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