November 10, 2018

Angular 6 CRUD Operations Application Tutorials

By admin AngularJs, Technology 0 Comments

Today, We want to share with you Angular 6 CRUD Operations Application.
In this post we will show you MEAN Stack Angular 6 CRUD Web Application, hear for Angular 6 CRUD Example Tutorials from Scratch we will give you demo and example for implement.
In this post, we will learn about Angular 6 CRUD Example Using MySQLi Database with an example.

Angular 6 CRUD Operations Application

There are the Following The simple About Angular 6 CRUD Operations Application Full Information With Example and source code.

This Lovely Post is about simple building Angular 6 CRUD application easy way to step by step.I shall be creating a sample authentication login application with angular 6 CRUD operations post-login with database sample main service REST APIs.I shall be also some methods integrating POST and GET HttpClientModule and angular 6 RouterModule.

Angular 6 CRUD Project

Generating Angular 6 Project

ng new angular6-example

Angular 6 Project Structure

I shall have multiple angular 6 components create such as signin and add-student, edit-student, create-student. Once an admin signin sucessfully,and then he can perform student Angular 6 CRUD operation.Following are the run this commands to generate our angular 6 components.For More Details Angular 6 Folder Project Structure

ng g component signin
ng g component add-student
ng g component edit-student
ng g component list-student

Angular CLI Useful Commands

ng g class my-new-class
ng g component my-new-component
ng g directive my-new-directive
ng g enum my-new-enum
ng g guard my-new-guard
ng g interface my-new-interface
ng g module my-module
ng g pipe my-new-pipe
ng g service my-new-service

Angular 6 Routing

There Following is our angular 6 routing configurtion with Angular 6 Components

app.routing.ts

import { RouterModule, Routes } from '@angular/router';
import {SigninComponent} from "./signin/signin.component";
import {AddStudentComponent} from "./add-student/add-student.component";
import {ListStudentComponent} from "./list-student/list-student.component";
import {EditStudentComponent} from "./edit-student/edit-student.component";

const routes: Routes = [
  { path: 'signin', component: SigninComponent },
  { path: 'add-student', component: AddStudentComponent },
  { path: 'list-student', component: ListStudentComponent },
  { path: 'edit-student', component: EditStudentComponent },
  {path : '', component : SigninComponent}
];

export const routing = RouterModule.forRoot(routes);

AuthenticationService in Angular 6

app.module.ts

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';

import { AppComponent } from './app.component';
import { SigninComponent } from './signin/signin.component';
import {routing} from "./app.routing";
import {AuthenticationService} from "./service/auth.service";
import {ReactiveFormsModule} from "@angular/forms";
import {HttpClientModule} from "@angular/common/http";
import { AddStudentComponent } from './add-student/add-student.component';
import { EditStudentComponent } from './edit-student/edit-student.component';
import {ListStudentComponent} from "./list-student/list-student.component";
import {StudentService} from "./service/student.service";

@NgModule({
  declarations: [
    AppComponent,
    SigninComponent,
    ListStudentComponent,
    AddStudentComponent,
    EditStudentComponent
  ],
  imports: [
    BrowserModule,
    routing,
    ReactiveFormsModule,
    HttpClientModule
  ],
  providers: [AuthenticationService, StudentService],
  bootstrap: [AppComponent]
})
export class AppModule { }

Service in Angular 6 Application

There Following is the angular 6 implementation of our StudentService

let fakeStudents = [{id: 1, studentName: 'jdpatel', sirname: 'Ray', email: '[email protected]'},
      {id: 1, studentName: 'jaydeep', sirname: 'Jac', email: '[email protected]'},
      {id: 1, studentName: 'krunal', sirname: 'Pan', email: '[email protected]'},
      {id: 1, studentName: 'ankit', sirname: 'pb', email: '[email protected]'},
    ];
    return Observable.of(fakeStudents).delay(5000);

student.service.ts

import { Injectable } from '@angular/core';
import { HttpClient } from '@angular/common/http';
import {Student} from "../model/student.model";

@Injectable()
export class StudentService {
  constructor(private http: HttpClient) { }
  baseUrl: string = 'http://localhost:8080/student-portal/students';

  getStudents() {
    return this.http.get(this.baseUrl);
  }

  getStudentById(id: number) {
    return this.http.get(this.baseUrl + '/' + id);
  }

  createStudent(student: Student) {
    return this.http.post(this.baseUrl, student);
  }

  updateStudent(student: Student) {
    return this.http.put(this.baseUrl + '/' + student.id, student);
  }

  deleteStudent(id: number) {
    return this.http.delete(this.baseUrl + '/' + id);
  }
}

Creating Components in Angular 6

First of all I shall have a signin component in Angular 6 CRUD Operations Application.and then if student successfull then listing pages display.

READ : MVC Framework PHP Tutorial with Example

signin.component.html

<div class="row">

  <div class="col-md-6 col-md-offset-2">
    <h1>Signin </h1>
    <form>
      <div class="gst form-group">
        <label for="email">Email address:</label>
        
        <div class="error">
          <div>Email is required</div>
        </div>
      </div>
      <div class="gst form-group">
        <label for="pwd">Password:</label>
        
        <div class="error">
          <div>Password is required</div>
        </div>
      </div>
      <button class="btn btn-default">Signin</button>
      <div class="error">
        <div>Invalid credentials.</div>
      </div>
    </form>
  </div>
</div>

signin.component.ts

import { Component, OnInit } from '@angular/core';
import {FormBuilder, FormGroup, Validators} from "@angular/forms";
import {Router} from "@angular/router";
import {first} from "rxjs/operators";
import {AuthenticationService} from "../service/auth.service";

@Component({
  selector: 'app-signin',
  templateUrl: './signin.component.html',
  styleUrls: ['./signin.component.css']
})
export class SigninComponent implements OnInit {

  signinForm: FormGroup;
  submitted: boolean = false;
  invalidSignin: boolean = false;
  constructor(private formBuilder: FormBuilder, private router: Router, private authService: AuthenticationService) { }

  onSubmit() {
    this.submitted = true;
    if (this.signinForm.invalid) {
      return;
    }
    if(this.signinForm.controls.email.value == '[email protected]' && this.signinForm.controls.password.value == 'password') {
        this.router.navigate(['list-student']);
    }else {
      this.invalidSignin = true;
    }
  }

  ngOnInit() {
    this.signinForm = this.formBuilder.group({
      email: ['', Validators.required],
      password: ['', Validators.required]
    });
  }



}

list-student.component.html

Angular 6 CRUD Operations Application for Display Listing Students.

<div class="col-md-6">
  <h2> Student Details</h2>
  <button class="btn btn-danger"> Add Student</button>
  <table class="table table-striped">
    <thead>
    <tr>
      <th class="hidden">Id</th>
      <th>FirstName</th>
      <th>LastName</th>
      <th>Email</th>
      <th>Action</th>
    </tr>
    </thead>
    <tbody>
    <tr>
      <td class="hidden"></td>
      <td></td>
      <td></td>
      <td></td>
      <td><button class="btn btn-danger"> Delete</button>
        <button class="btn btn-danger" style="margin-left: 20px"> Edit</button></td>
    </tr>
    </tbody>
  </table>
</div>

list-student.component.ts

import { Component, OnInit } from '@angular/core';
import {Router} from "@angular/router";
import {StudentService} from "../service/student.service";
import {Student} from "../model/student.model";

@Component({
  selector: 'app-list-student',
  templateUrl: './list-student.component.html',
  styleUrls: ['./list-student.component.css']
})
export class ListStudentComponent implements OnInit {

  students: Student[];

  constructor(private router: Router, private studentService: StudentService) { }

  ngOnInit() {
    this.studentService.getStudents()
      .subscribe( data => {
        this.students = data;
      });
  }

  deleteStudent(student: Student): void {
    this.studentService.deleteStudent(student.id)
      .subscribe( data => {
        this.students = this.students.filter(u => u !== student);
      })
  };

  editStudent(student: Student): void {
    localStorage.removeItem("editStudentId");
    localStorage.setItem("editStudentId", student.id.toString());
    this.router.navigate(['edit-student']);
  };

  addStudent(): void {
    this.router.navigate(['add-student']);
  };
}

add-student.component.html

<div class="col-md-6">
  <h2 class="text-center">Add Student</h2>
  <form>
    <div class="gst form-group">
      <label for="email">Email address:</label>
      
    </div>

    <div class="gst form-group">
      <label for="studentName">Student Name:</label>
      
    </div>

    <div class="gst form-group">
      <label for="sirname">Sir Name:</label>
      
    </div>

    <button class="btn btn-success">Update</button>
  </form>
</div>

add-student.component.ts

import { Component, OnInit } from '@angular/core';
import {FormBuilder, FormGroup, Validators} from "@angular/forms";
import {StudentService} from "../service/student.service";
import {first} from "rxjs/operators";
import {Router} from "@angular/router";

@Component({
  selector: 'app-add-student',
  templateUrl: './add-student.component.html',
  styleUrls: ['./add-student.component.css']
})
export class AddStudentComponent implements OnInit {

  constructor(private formBuilder: FormBuilder,private router: Router, private studentService: StudentService) { }

  addForm: FormGroup;

  ngOnInit() {

    this.addForm = this.formBuilder.group({
      id: [],
      email: ['', Validators.required],
      studentName: ['', Validators.required],
      sirname: ['', Validators.required]
    });

  }

  onSubmit() {
    this.studentService.createStudent(this.addForm.value)
      .subscribe( data => {
        this.router.navigate(['list-student']);
      });
  }

}

edit-student.component.html

<div class="col-md-6">
  <h2 class="text-center">Edit Student</h2>
  <form>
    <div class="gst form-group">
      <label for="email">Email address:</label>
      
    </div>

    <div class="gst form-group">
      <label for="studentName">Student Name:</label>
      
    </div>

    <div class="gst form-group">
      <label for="sirname">Sir Name:</label>
      
    </div>

    <button class="btn btn-success">Update</button>
  </form>
</div>

edit-student.component.ts

import { Component, OnInit } from '@angular/core';
import {StudentService} from "../service/student.service";
import {Router} from "@angular/router";
import {Student} from "../model/student.model";
import {FormBuilder, FormGroup, Validators} from "@angular/forms";
import {first} from "rxjs/operators";

@Component({
  selector: 'app-edit-student',
  templateUrl: './edit-student.component.html',
  styleUrls: ['./edit-student.component.css']
})
export class EditStudentComponent implements OnInit {

  student: Student;
  editForm: FormGroup;
  constructor(private formBuilder: FormBuilder,private router: Router, private studentService: StudentService) { }

  ngOnInit() {
    let studentId = localStorage.getItem("editStudentId");
    if(!studentId) {
      alert("Invalid action.")
      this.router.navigate(['list-student']);
      return;
    }
    this.editForm = this.formBuilder.group({
      id: [],
      email: ['', Validators.required],
      studentName: ['', Validators.required],
      sirname: ['', Validators.required]
    });
    this.studentService.getStudentById(+studentId)
      .subscribe( data => {
        this.editForm.setValue(data);
      });
  }

  onSubmit() {
    this.studentService.updateStudent(this.editForm.value)
      .pipe(first())
      .subscribe(
        data => {
          this.router.navigate(['list-student']);
        },
        error => {
          alert(error);
        });
  }

}

Testing Angular 6 Application

run the command ng serve and browser this url

localhost:4200

Adding Material Design in Angular 6 App

in angular 6, run ng add @angular/material command

<a href="http://jquery/3.3.1/jquery.min.js">http://jquery/3.3.1/jquery.min.js</a>
<a href="http://4.0.0/js/bootstrap.min.js">http://4.0.0/js/bootstrap.min.js</a>

material.module.ts

import {NgModule} from '@angular/core';
import { CommonModule } from '@angular/common';
import {
  MatButtonModule, MatCardModule, MatDialogModule, MatInputModule, MatTableModule,
  MatToolbarModule
} from '@angular/material';

@NgModule({
  imports: [CommonModule, MatToolbarModule, MatButtonModule, MatCardModule, MatInputModule, MatDialogModule, MatTableModule],
  exports: [CommonModule, MatToolbarModule, MatButtonModule, MatCardModule, MatInputModule, MatDialogModule, MatTableModule],
})
export class CustomMaterialModule { }

signin.component.html

  
    <span><img src="./assets/infinityknow_logo.png"></span>
    <span class="example-fill-remaining-space"></span>
    <span class="example-spacer"></span>

    <button>About</button>
    <button>Contact</button>
  



  
    Signin
  
  
    <form>
      <table class="example-full-width" cellspacing="0">
        <tr>
          <td>
            
              
              Password is required
            
          </td>
        </tr>
        <tr>
          <td>
            
            Email is required
          </td>
        </tr></table>
    </form>
  
  
    <button>Signin</button>

Lastly, you can all the source code Angular 6 CRUD Operations Application full Working compare the difference between our signin page styling. You can here download the all source code from free githubhere.

READ : C# SortedSet Tutorial with Examples

Angular 6 Example – Angular 6 CRUD Operations Application

Angular Latest My Previous Post With Source code Read more…..

Read :

Summary

You can also read about AngularJS, ASP.NET, VueJs, PHP.

I hope you get an idea about Angular 6 CRUD Application Tutorials step By Step.
I would like to have feedback on my Infinityknow.com blog.
Your valuable feedback, question, or comments about this article are always welcome.
If you enjoyed and liked this post, don’t forget to share.

READ : AngularJS Directive ng-keydown ng-keyup ng-keypress events

We hope you get an idea about
We would like to have feedback on my Information blog .
Your valuable any feedback, Good question, Inspirational Quotes, or Motivational comments about this article are always welcome.
If you liked this post, Please don’t forget to share this as Well as Like FaceBook Page.

https://pakainfo.com/

Post Views: 6,426

Tags:angular 6, Angular 6 Class Binding, Angular 6 CLI Installation, Angular 6 Components, angular 6 crud, Angular 6 HTTP, Angular 6 HttpClient Tutorial, Angular 6 Module, angular 6 project structure, angular 6 routing, Angular 6 services, Angular 6 Templating, Animation