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Saturday, October 16, 2021
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Angular 11Bootstrap 4DatatableMysqlPhp

Angular 11 Crud Tutorial with Service

Angular 11 Crud Tutorial with Service

Hello friends, welcome back to my blog. Today in this blog post, I am going to tell you, Angular 11 Crud Tutorial with Service.

Angular 11 Crud

Angular 11 came and if you are new then you must check below link:

  1. Angular11 Basic Tutorials

Friends now I proceed onwards and here is the working code snippet for Angular 11 Crud Tutorial with Service and please use carefully this to avoid the mistakes:

1. Firstly friends we need fresh angular 11 setup and for this we need to run below commands but if you already have angular 11 setup then you can avoid below commands. Secondly we should also have latest node version installed on our system:

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 datatable modules, bootstrap(for good looks), jquery, sweetalert  modules into our angular application:

npm install jquery --save

npm install datatables.net --save

npm install datatables.net-dt --save

npm install angular-datatables --save

npm install @types/jquery --save-dev

npm install @types/datatables.net --save-dev

npm install --save sweetalert2

npm install bootstrap --save

 

3. After done with commands add below code into you angular.json file:

 "styles": [
              ...
              "src/styles.css",
              "node_modules/datatables.net-dt/css/jquery.dataTables.css",
              "node_modules/bootstrap/dist/css/bootstrap.min.css",
              "node_modules/sweetalert2/src/sweetalert2.scss"
           ],
"scripts": [
              ...
              "node_modules/jquery/dist/jquery.js",
              "node_modules/datatables.net/js/jquery.dataTables.js",
              "node_modules/bootstrap/dist/js/bootstrap.js",
              "node_modules/sweetalert2/dist/sweetalert2.js"
           ]

 

4. Now friends, we need to run below commands to create service file and run our angular project:

ng g service crud

ng serve --o

 

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

...
import { ReactiveFormsModule } from '@angular/forms';
import { HttpClientModule } from '@angular/common/http';
...
imports: [
...
ReactiveFormsModule
HttpClientModule
]

 

6. Now friends we just need to add below code into src/app/crud.service.ts file:

import { Injectable } from '@angular/core';
import { HttpClient } from '@angular/common/http';
@Injectable({
  providedIn: 'root'
})
export class CrudService {
  userData:any;
  userid:any;
  singleuserdata:any;
  constructor(private http:HttpClient) { }

  //get all users  details
  public getusers()
      {
        
          return this.http.get('http://localhost/users.php');
      }

  //add new user    
  public adduser(userData)
  {
    return this.http.post('http://localhost/users.php/'
  , userData).subscribe((res: Response) => {});
  }

  //get single user
  public getsingleuser(userid)
  {
    return this.http.post('http://localhost/users.php/'
    , userid).subscribe((res: Response) => {
      this.singleuserdata = res[0];
      
      
    });
  }

  //delete user
  public deleteuser(userid)
  {
    return this.http.post('http://localhost/users.php/'
    , userid).subscribe((res: Response) => {});
  }

  //update user
  public updateuser(userid)
  {
    return this.http.post('http://localhost/users.php/'
    , userid).subscribe((res: Response) => {});
  }

    
}

 

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

import { Component } from '@angular/core';
import { FormBuilder, FormGroup, Validators } from '@angular/forms';
import Swal from 'sweetalert2/dist/sweetalert2.js';
import { CrudService } from './crud.service'; 
declare let $: any;
@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.css']
})
export class AppComponent  {
  constructor(private crudservice: CrudService, private formBuilder: FormBuilder) {}
  data = [];
  userdata:any
  //Add Form
  addForm: FormGroup;
  submitted = false;
  
  get f() { return this.addForm.controls; }
  onSubmit() {
    
    this.submitted = true;
    // stop here if form is invalid
    if (this.addForm.invalid) {
        return;
    }
    if(this.submitted)
    {
      
      // Initialize Params Object
      var myFormData = new FormData();
      // Begin assigning parameters
  
      myFormData.append('myUsername', this.addForm.value.firstname);
      myFormData.append('myEmail', this.addForm.value.email);
      this.crudservice.adduser(myFormData);
      this.crudservice.getusers().subscribe((ret: any[])=>{
        
        this.data = ret;
        $("#addUser").modal("hide");
        //sweetalert message popup
        Swal.fire({
          title: 'Hurray!!',
          text:   "User has been added successfully",
          icon: 'success'
        });
        $('#datatableexample').DataTable().destroy();
        this.crudservice.getusers().subscribe((ret: any[])=>{
        
          this.data = ret;
         
          setTimeout(()=>{                          
            $('#datatableexample').DataTable( {
              pagingType: 'full_numbers',
              pageLength: 5,
              processing: true,
              lengthMenu : [5, 10, 25],
              order:[0,"desc"]
          } );
          }, 500);
          
          
      });
    });
    }
  }
    

  ngOnInit() {
  
   //Add form validations
    this.addForm = this.formBuilder.group({
      email: ['', [Validators.required, Validators.email]],
    
      firstname: ['', [Validators.required]]
      });

    //Get all usera details  
    this.crudservice.getusers().subscribe((ret: any[])=>{
          
            this.data = ret;
          
            setTimeout(()=>{                          
              $('#datatableexample').DataTable( {
                pagingType: 'full_numbers',
                pageLength: 5,
                processing: true,
                lengthMenu : [5, 10, 25],
                order:[0,"desc"]
            } );
            }, 100);
            
            
        });

      //Edit form validations
      this.editForm = this.formBuilder.group({
        email: ['', [Validators.required, Validators.email]],
      
        firstname: ['', [Validators.required]]
        });

      
    }

    //Add New User Function
    addnewuser()
    {
      $("#addUser").modal("show");
    }

    //View User
    
    //For modal popup hiding first time
    showuser = false;
    openuser(id)
    {
        // Initialize Params Object
        var myFormData = new FormData();
       
        // Begin assigning parameters
      
        myFormData.append('userid', id);
      
        //user details post request

        this.crudservice.getsingleuser(myFormData);
        setTimeout(()=>{ 
        this.userdata = this.crudservice.singleuserdata;
        this.showuser = true;
      }, 500);
        setTimeout(()=>{ 
        $("#showuser").modal("show");
        }, 800);
      
    }

    //Delete User
    deleteuser(id)
    {
      // Initialize Params Object
      var myFormData = new FormData();
   
      
      // Begin assigning parameters
      myFormData.append('deleteid', id);
      this.crudservice.deleteuser(myFormData);
      //sweetalert message popup
      Swal.fire({
        title: 'Hurray!!',
        text:   "User has been deleted successfully",
        icon: 'success'
      });
      $('#datatableexample').DataTable().destroy();
        this.crudservice.getusers().subscribe((ret: any[])=>{
        
          this.data = ret;
         
          setTimeout(()=>{                          
            $('#datatableexample').DataTable( {
              pagingType: 'full_numbers',
              pageLength: 5,
              processing: true,
              lengthMenu : [5, 10, 25],
              order:[0,"desc"]
          } );
          }, 500);
          
          
      });
        

    }

    //Edit User code starts
    get fe() { return this.editForm.controls; }
    onSubmitEdit() {
      
      this.submitted = true;
      // stop here if form is invalid
      if (this.editForm.invalid) {
          return;
      }
      //True if all the fields are filled
      if(this.submitted)
      {
        
        // Initialize Params Object
        var myFormData = new FormData();
      
      // Begin assigning parameters
      
      myFormData.append('updateUsername', this.editForm.value.firstname);
      myFormData.append('updateEmail', this.editForm.value.email);
      myFormData.append('updateid', this.userID);
      this.crudservice.updateuser(myFormData);
      //sweetalert message popup
      $("#editModal").modal("hide");
      Swal.fire({
        title: 'Hurray!!',
        text:   "User has been updated successfully",
        icon: 'success'
      });
      $('#datatableexample').DataTable().destroy();
        this.crudservice.getusers().subscribe((ret: any[])=>{
        
          this.data = ret;
         
          setTimeout(()=>{                          
            $('#datatableexample').DataTable( {
              pagingType: 'full_numbers',
              pageLength: 5,
              processing: true,
              lengthMenu : [5, 10, 25],
              order:[0,"desc"]
          } );
          }, 500);
          
          
      });

      
        }
      }
    showedituser = false;
    editForm: FormGroup;
    userID:any;
    edituser(id)
    {
      // Initialize Params Object
      var myFormData = new FormData();
       
      // Begin assigning parameters
    
      myFormData.append('userid', id);
    
      //user details post request

      this.crudservice.getsingleuser(myFormData);
      setTimeout(()=>{ 
      this.userdata = this.crudservice.singleuserdata;
      this.editForm.controls["firstname"].setValue(this.userdata.username);
      this.editForm.controls["email"].setValue(this.userdata.email);
      this.userID = this.userdata.id;
      this.showedituser = true;
    }, 500);
      setTimeout(()=>{ 
        $("#editModal").modal("show");
      }, 800);
      // Initialize Params Object
      var myFormData = new FormData();
      
      // Begin assigning parameters
      myFormData.append('userid', id);
      
    
    }
}

 

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

<h1>therichpost.com</h1>

<div class="container mt-5 mb-5">
  <!--Add User Button-->
  <button class="btn btn-primary mb-5" (click)="addnewuser()">Add New User</button>

  <!--Datatable with User Details-->
  <table class="table table-hover table-bordered" id="datatableexample">
    <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" (click)="openuser(group.id)"> <i class="fas fa-eye"></i> </button>
              <button class="bg-warning" (click)="edituser(group.id)"> <i class="fas fa-edit"></i> </button>
              <button class="bg-danger" (click)="deleteuser(group.id)"> <i class="fas fa-trash"></i> </button>
            </td>
          </tr>
       
     
     
      
    </tbody>
  </table>
  </div>


<!--Add User Modal-->
<div class="modal" id="addUser">
  <div class="modal-dialog">
    <div class="modal-content">
    
      <div class="modal-header">
        <h4 class="modal-title align-center">Add User Details</h4>
        <button type="button" class="close" data-dismiss="modal">&times;</button>
      </div>
      
      <div class="modal-body">
      
        <form [formGroup]="addForm" (ngSubmit)="onSubmit()">
          <div class="row">
             <div class="col-sm-6">
            
             
                <div class="form-group">
                      <label>Username</label>
                      <input type="text"  formControlName="firstname" class="form-control" [ngClass]="{ 'is-invalid': submitted && f.firstname.errors }" />
                      <div *ngIf="submitted && f.firstname.errors" class="invalid-feedback">
                            <div *ngIf="f.firstname.errors.required">Name is required</div>
                      </div>
                   </div>
             </div> 
             <div class="col-sm-6">
                <div class="form-group">
                   <label>Email</label>
                   <input type="text"  formControlName="email" class="form-control" [ngClass]="{ 'is-invalid': submitted && f.email.errors }" />
                   <div *ngIf="submitted && f.email.errors" class="invalid-feedback">
                      <div *ngIf="f.email.errors.required">Email is required</div>
                      <div *ngIf="f.email.errors.email">Email must be a valid email address</div>
                   </div>
                </div>
             </div>
             
             
            </div>
            <button type="submit" class="btn btn-primary">Add</button>
          </form>

      </div>
    
      <div class="modal-footer">
        <button type="button" class="btn btn-danger" data-dismiss="modal">Close</button>
      </div>
    </div>
  </div>
</div>

<!--View User Details-->
<div class="modal" id="showuser" *ngIf="showuser">
  <div class="modal-dialog">
    <div class="modal-content">
    
      <div class="modal-header">
        <h4 class="modal-title align-center">User : {{userdata.username}}</h4>
        <button type="button" class="close" data-dismiss="modal">&times;</button>
      </div>
      
      <div class="modal-body text-center">
        <table class="table table-hover table-bordered">
        <thead>
          <tr>
            <th>ID</th>
            <th>Email</th>
            <th>Username</th>
            
          </tr>
        </thead>
        <tbody>
            
          <!-- User Dynamic data-->     
          <tr>
          <td>{{userdata.id}}</td>
          <td>{{userdata.email}}</td>
          <td>{{userdata.username}}</td>
          </tr>


        </tbody>
        </table>
      </div>
    </div>
  </div>
</div>

<!--Edit User-->
<div class="modal" id="editModal" *ngIf="showedituser">
  <div class="modal-dialog">
    <div class="modal-content">
    
      <div class="modal-header">
        <h4 class="modal-title align-center">Edit : {{userdata.username}}</h4>
        <button type="button" class="close" data-dismiss="modal">&times;</button>
      </div>
      
      <div class="modal-body">
      
        <form [formGroup]="editForm" (ngSubmit)="onSubmitEdit()">
          <div class="row">
             <div class="col-sm-6">
            
             
                <div class="form-group">
                      <label>Username</label>
                      <input type="text"  formControlName="firstname" class="form-control" [ngClass]="{ 'is-invalid': submitted && fe.firstname.errors }" />
                      <div *ngIf="submitted && fe.firstname.errors" class="invalid-feedback">
                            <div *ngIf="fe.firstname.errors.required">Name is required</div>
                      </div>
                   </div>
             </div> 
             <div class="col-sm-6">
                <div class="form-group">
                   <label>Email</label>
                   <input type="text"  formControlName="email" class="form-control" [ngClass]="{ 'is-invalid': submitted && fe.email.errors }" />
                   <div *ngIf="submitted && fe.email.errors" class="invalid-feedback">
                      <div *ngIf="fe.email.errors.required">Email is required</div>
                      <div *ngIf="fe.email.errors.email">Email must be a valid email address</div>
                   </div>
                </div>
             </div>
             
             
            </div>
            <button type="submit" class="btn btn-primary">Update</button>
          </form>
       
              
      
        
     
      </div>
    
      <div class="modal-footer">
        <button type="button" class="btn btn-danger" data-dismiss="modal">Close</button>
      </div>
    </div>
  </div>
</div>

 

9. Now friends, we have to add some code into our src/index.html file for font icons:

<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>
   .fa-eye:before{color: #fff;}
   
  </style>
</head>

 

10. Now friends here is my php code snippet to fetch and save data and show  into angular 11  and I added this code into my xampp/htdocs/users.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);
} 

//Add user
if(isset($_POST['myEmail']))
{
    $sql = "INSERT INTO userdetails (email, username)
        VALUES ('".$_POST['myEmail']."', '".$_POST['myUsername']."')";
    if (mysqli_query($conn,$sql)) {
    $data = array("data" => "You Data added successfully");
        echo json_encode($data);
    } else {
        $data = array("data" => "Error: " . $sql . "<br>" . $conn->error);
        echo json_encode($data);
        
    }
}

//Get single user details
elseif(isset($_POST['userid']))
{
    $trp = mysqli_query($conn, "SELECT * from userdetails where id =".$_POST['userid']);
    $rows = array();
    while($r = mysqli_fetch_assoc($trp)) {
        $rows[] = $r;
    }
    print json_encode($rows);
}
//Delete user
elseif(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($data);
      }
}
//Update user
elseif(isset($_POST["updateid"]))
{
    $sql = "UPDATE userdetails SET email='".$_POST["updateEmail"]."', username='".$_POST["updateUsername"]."'  WHERE id=".$_POST["updateid"];

    if ($conn->query($sql) === TRUE) {
    
       $data = array("data" => "Record updated successfully");
        echo json_encode($data);
    } else {
    
    $data = array("data" => "Error updating record: " . $conn->error);
    echo json_encode($data);
    }
}
else
{
    //get all users details
    $trp = mysqli_query($conn, "SELECT * from userdetails ORDER BY id DESC");
    $rows = array();
    while($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.

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

Ajay Malhotra
the authorAjay Malhotra
Hello to all. Welcome to therichpost.com. Myself Ajay Malhotra and I am freelance full stack developer. I love coding. I know WordPress, Core php, Angularjs, Angular 2, Angular 6, Angular 7, Angular 8, Angular 9, Angular 10, Angular 11, Angular12, Bootstrap 5, Nodejs, Laravel, Codeigniter, Shopify, Squarespace, jQuery, Google Map Api, Vuejs, Reactjs, Big commerce etc.

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