Angular 10 Crud Tutorial – Delete User

Hello friends, welcome back to my blog. Today in this blog post, I am going to tell you, Angular 10 Crud Tutorial – Delete User.

Guys before starting this, I must say, you have to follow below tutorial links to understand this post:
Angular Crud Tutorial – Add User
Angular Crud Tutorial – View user

Angular10 came and if you are new then you must check below two links:

1. Angular10 for beginners
2. Angular10 Basic Tutorials

Friends now I proceed onwards and here is the working code snippet for Angular 10 Crud Tutorial – Delete User and please use carefully this to avoid the mistakes:

1. Firstly friends we need fresh angular 10 setup and for this we need to run below commands but if you already have angular 10 setup then you can avoid below commands. Secondly we should also have latest node version installed on our system:

Guys, you can skip this step if you already have angular 10 fresh setup:

npm install -g @angular/cli 

ng new angularcrud //Create new Angular Project

cd angularcrud // Go inside the Angular Project Folder

ng serve --open // Run and Open the Angular Project

http://localhost:4200/ // Working Angular Project Url

2. Now friends, here we need to run below commands into our project terminal to install bootstrap(for good looks), jquery to support bootstrap  modules into our angular application:

Guys, you can skip this step if you already have these modules:

npm i bootstrap --save

npm i jquery --save

npm install --save sweetalert2

ng serve --o

3. Now friends, here we need to add below  into our angular.json file to get modules styles and scripts:

...
"styles": [
              ...
              "node_modules/bootstrap/dist/css/bootstrap.min.css",
               "node_modules/sweetalert2/src/sweetalert2.scss",
              
            ],
            "scripts": [
              ...
              "node_modules/jquery/dist/jquery.min.js", 
              "node_modules/bootstrap/dist/js/bootstrap.min.js", 
              "node_modules/sweetalert2/dist/sweetalert2.js", 
              
            ]
...

4. Now friends we just need to add below code into src/app/app.module.ts file:

...

import { HttpClientModule } from '@angular/common/http';

@NgModule({
  imports: [
    
    HttpClientModule
  ],
...

5. Now friends we just need to add below code into src/app/app.component.ts file:

...
import { HttpClient } from '@angular/common/http';
export class AppComponent {
...

//Declare data storing variables

data:any;

constructor(private http: HttpClient){
  //get request
  this.http.get('http://localhost/save.php').subscribe(data => {
    this.data = data;
        }, error => console.error(error));
}
deleteuser(id)
{
  // Initialize Params Object
  var myFormData = new FormData();
  
  // Begin assigning parameters

  myFormData.append('deleteid', id);


return this.http.post('http://localhost/save.php/'
  , myFormData).subscribe((res: Response) => {
   
    
    //sweetalert message popup
    Swal.fire({
      title: 'Hurray!!',
      text:   "User has been deleted successfully.",
      icon: 'success'
    });

    return this.http.get('http://localhost/save.php').subscribe(data => {
    this.data = data;
    
   
    console.log(this.data);
    }, error => console.error(error));
    
  });
}
}

6. Now friends we just need to add below code into src/app/app.component.html file to see the output on browser:

<table class="table table-hover table-bordered">
        <thead>
          <tr>
            <th>ID</th>
            <th>Email</th>
            <th>Username</th>
            <th>Actions</th>
          </tr>
        </thead>
        <tbody>
       
           
              <tr *ngFor="let group of data">
                <td>{{group.id}}</td>
                <td>{{group.email}}</td>
                <td>{{group.username}}</td>
       
                <td>
                  <button class="bg-info"> <i class="fas fa-eye"></i> </button>
                  <button class="bg-warning"> <i class="fas fa-edit"></i> </button>
                  <button class="bg-danger"> <i class="fas fa-trash" (click)="deleteuser(group.id)"></i> </button>
                </td>
              </tr>
           
         
         
          
        </tbody>
      </table>

7. Now friends we just need to add below code into src/index.html file to add font-awesome icons and some custom styling:

<head>
  ...
  <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css">
  <link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.6.3/css/all.css">
  <style>
   .bg-primary, .bg-warning, .bg-danger, .bg-info{border:none; margin-right: 3px;}
   .fa-edit:before,  .fa-user:before, .fa-trash:before, .fa-eye:before{color: #fff;}
   .btn{margin-right: 3px;}
  </style>
</head>

8. Now friends here is my php code snippet to fetch data and show  into angular 10  and I added this code into my xampp/htdocs/save.php file:

//Please create users database inside phpmysql admin and create userdetails tabel and create id, email and username fields:

<?php
//Please create users database inside phpmysql admin and create userdetails tabel and create id, email and username fields

$servername = "localhost";
$username   = "root";
$password   = "";
$dbname     = "users";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
} 

//Delete user
if(isset($_POST['deleteid']))
{
    $sql = mysqli_query($conn, "DELETE from userdetails where id =".$_POST['deleteid']);
    if ($sql) {
        
        $data = array("data" => "Record deleted successfully");
        echo json_encode($data);
      } else {
      
        $data = array("data" =>"Error deleting record: " . mysqli_error($conn));
        echo json_encode($data);
      }
}
else
{
    //get all users details
    $trp = mysqli_query($conn, "SELECT * from userdetails");
    $rows = array();
    while($r = mysqli_fetch_assoc($trp)) {
        $rows[] = $r;
    }
    print json_encode($rows);
}
?>

Now we are done friends. If you have any kind of query or suggestion or any requirement then feel free to comment below.

In next post, I will tell you, Angular 10 Crud Tutorials – Edit User.

Note: Friends, I just tell the basic setup and things, you can change the code according to your requirements. For better understanding must watch video above.

I will appreciate that if you will tell your views for this post. Nothing matters if your views will be good or bad.

Jassa

Thanks