abp/docs/en/Tutorials/Part-2.md

ASP.NET Core {{UI_Value}} Tutorial - Part 2

//[doc-params]
{
    "UI": ["MVC","NG"]
}

{{ if UI == "MVC" DB="ef" DB_Text="Entity Framework Core" UI_Text="mvc" else if UI == "NG" DB="mongodb" DB_Text="MongoDB" UI_Text="angular" else DB ="?" UI_Text="?" end }}

About This Tutorial

In this tutorial series, you will build an ABP based web application named Acme.BookStore. This application is used to manage a list of books and their authors. It is developed using the following technologies:

• {{DB_Text}} as the ORM provider.
• {{UI_Value}} as the UI Framework.

This tutorial is organized as the following parts;

• Part I: Creating the project and book list page
• Part-2: Creating, updating and deleting books (this part)
• Part-3: Integration tests

{{if UI == "MVC"}}

Creating a New Book

In this section, you will learn how to create a new modal dialog form to create a new book. The modal dialog will look like in the image below:

Create the Modal Form

Create a new razor page, named CreateModal.cshtml under the Pages/Books folder of the Acme.BookStore.Web project.

CreateModal.cshtml.cs

Open the CreateModal.cshtml.cs file (CreateModalModel class) and replace with the following code:

using System.Threading.Tasks;
using Acme.BookStore.Books;
using Microsoft.AspNetCore.Mvc;

namespace Acme.BookStore.Web.Pages.Books
{
    public class CreateModalModel : BookStorePageModel
    {
        [BindProperty]
        public CreateUpdateBookDto Book { get; set; }

        private readonly IBookAppService _bookAppService;

        public CreateModalModel(IBookAppService bookAppService)
        {
            _bookAppService = bookAppService;
        }

        public void OnGet()
        {
            Book = new CreateUpdateBookDto();
        }

        public async Task<IActionResult> OnPostAsync()
        {
            await _bookAppService.CreateAsync(Book);
            return NoContent();
        }
    }
}

• This class is derived from the BookStorePageModel instead of standard PageModel. BookStorePageModel indirectly inherits the PageModel and adds some common properties & methods that can be shared in your page model classes.
• [BindProperty] attribute on the Book property binds post request data to this property.
• This class simply injects the IBookAppService in the constructor and calls the CreateAsync method in the OnPostAsync handler.
• It creates a new CreateUpdateBookDto object in the OnGet method. ASP.NET Core can work without creating a new instance like that. However, it doesn't create an instance for you and if your class has some default value assignments or code execution in the class constructor, they won't work. For this case, we set default values for some of the CreateUpdateBookDto properties.

CreateModal.cshtml

Open the CreateModal.cshtml file and paste the code below:

@page
@using Acme.BookStore.Localization
@using Acme.BookStore.Web.Pages.Books
@using Microsoft.Extensions.Localization
@using Volo.Abp.AspNetCore.Mvc.UI.Bootstrap.TagHelpers.Modal
@model CreateModalModel
@inject IStringLocalizer<BookStoreResource> L
@{
    Layout = null;
}
<abp-dynamic-form abp-model="Book" asp-page="/Books/CreateModal">
    <abp-modal>
        <abp-modal-header title="@L["NewBook"].Value"></abp-modal-header>
        <abp-modal-body>
            <abp-form-content />
        </abp-modal-body>
        <abp-modal-footer buttons="@(AbpModalButtons.Cancel|AbpModalButtons.Save)"></abp-modal-footer>
    </abp-modal>
</abp-dynamic-form>

• This modal uses abp-dynamic-form tag helper to automatically create the form from the CreateBookViewModel model class.
• abp-model attribute indicates the model object where it's the Book property in this case.
• abp-form-content tag helper is a placeholder to render the form controls (it is optional and needed only if you have added some other content in the abp-dynamic-form tag, just like in this page).

Tip: Layout should be null just as done in this example since we don't want to include all the layout for the modals when they are loaded via AJAX.

Add the "New book" Button

Open the Pages/Books/Index.cshtml and set the content of abp-card-header tag as below:

<abp-card-header>
    <abp-row>
        <abp-column size-md="_6">
            <abp-card-title>@L["Books"]</abp-card-title>
        </abp-column>
        <abp-column size-md="_6" class="text-right">
            <abp-button id="NewBookButton"
                        text="@L["NewBook"].Value"
                        icon="plus"
                        button-type="Primary"/>
        </abp-column>
    </abp-row>
</abp-card-header>

The final content of the Index.cshtml is shown below:

@page
@using Acme.BookStore.Localization
@using Acme.BookStore.Web.Pages.Books
@using Microsoft.Extensions.Localization
@model IndexModel
@inject IStringLocalizer<BookStoreResource> L
@section scripts
{
    <abp-script src="/Pages/Books/Index.js"/>
}

<abp-card>
    <abp-card-header>
        <abp-row>
            <abp-column size-md="_6">
                <abp-card-title>@L["Books"]</abp-card-title>
            </abp-column>
            <abp-column size-md="_6" class="text-right">
                <abp-button id="NewBookButton"
                            text="@L["NewBook"].Value"
                            icon="plus"
                            button-type="Primary"/>
            </abp-column>
        </abp-row>
    </abp-card-header>
    <abp-card-body>
        <abp-table striped-rows="true" id="BooksTable"></abp-table>
    </abp-card-body>
</abp-card>

This adds a new button called New book to the top-right of the table:

Open the Pages/Books/Index.js and add the following code just after the Datatable configuration:

var createModal = new abp.ModalManager(abp.appPath + 'Books/CreateModal');

createModal.onResult(function () {
    dataTable.ajax.reload();
});

$('#NewBookButton').click(function (e) {
    e.preventDefault();
    createModal.open();
});

• abp.ModalManager is a helper class to manage modals in the client side. It internally uses Twitter Bootstrap's standard modal, but abstracts many details by providing a simple API.
• createModal.onResult(...) used to refresh the data table after creating a new book.
• createModal.open(); is used to open the model to create a new book.

The final content of the Index.js should be like that:

$(function () {
    var l = abp.localization.getResource('BookStore');

    var dataTable = $('#BooksTable').DataTable(
        abp.libs.datatables.normalizeConfiguration({
                ajax: abp.libs.datatables.createAjax(acme.bookStore.books.book.getList),
                columnDefs: [
                    {
                        title: l('Name'),
                        data: "name"
                    },
                    {
                        title: l('Type'),
                        data: "type",
                        render: function (data) {
                            return l('Enum:BookType:' + data);
                        }
                    },
                    {
                        title: l('PublishDate'),
                        data: "publishDate",
                        render: function (data) {
                            return luxon
                                .DateTime
                                .fromISO(data, {
                                    locale: abp.localization.currentCulture.name
                                }).toLocaleString();
                        }
                    },
                    {
                        title: l('Price'),
                        data: "price"
                    },
                    {
                        title: l('CreationTime'), data: "creationTime",
                        render: function (data) {
                            return luxon
                                .DateTime
                                .fromISO(data, {
                                    locale: abp.localization.currentCulture.name
                                }).toLocaleString(luxon.DateTime.DATETIME_SHORT);
                        }
                    }
                ]
            }
        )
    );

    var createModal = new abp.ModalManager(abp.appPath + 'Books/CreateModal');

    createModal.onResult(function () {
        dataTable.ajax.reload();
    });

    $('#NewBookButton').click(function (e) {
        e.preventDefault();
        createModal.open();
    });

});

Now, you can run the application and add some new books using the new modal form.

Updating a Book

Create a new razor page, named EditModal.cshtml under the Pages/Books folder of the Acme.BookStore.Web project:

EditModal.cshtml.cs

Open the EditModal.cshtml.cs file (EditModalModel class) and replace with the following code:

using System;
using System.Threading.Tasks;
using Acme.BookStore.Books;
using Microsoft.AspNetCore.Mvc;

namespace Acme.BookStore.Web.Pages.Books
{
    public class EditModalModel : BookStorePageModel
    {
        [HiddenInput]
        [BindProperty(SupportsGet = true)]
        public Guid Id { get; set; }

        [BindProperty]
        public CreateUpdateBookDto Book { get; set; }

        private readonly IBookAppService _bookAppService;

        public EditModalModel(IBookAppService bookAppService)
        {
            _bookAppService = bookAppService;
        }

        public async Task OnGetAsync()
        {
            var bookDto = await _bookAppService.GetAsync(Id);
            Book = ObjectMapper.Map<BookDto, CreateUpdateBookDto>(bookDto);
        }

        public async Task<IActionResult> OnPostAsync()
        {
            await _bookAppService.UpdateAsync(Id, Book);
            return NoContent();
        }
    }
}

• [HiddenInput] and [BindProperty] are standard ASP.NET Core MVC attributes. SupportsGet is used to be able to get Id value from query string parameter of the request.
• In the OnGetAsync method, we get BookDto from the BookAppService and this is being mapped to the DTO object CreateUpdateBookDto.
• The OnPostAsync uses BookAppService.UpdateAsync(...) to update the entity.

Mapping from BookDto to CreateUpdateBookDto

To be able to map the BookDto to CreateUpdateBookDto, configure a new mapping. To do this, open the BookStoreWebAutoMapperProfile.cs in the Acme.BookStore.Web project and change it as shown below:

using AutoMapper;

namespace Acme.BookStore.Web
{
    public class BookStoreWebAutoMapperProfile : Profile
    {
        public BookStoreWebAutoMapperProfile()
        {
            CreateMap<BookDto, CreateUpdateBookDto>();
        }
    }
}

• We have just added CreateMap<BookDto, CreateUpdateBookDto>(); to define this mapping.

Notice that we do the mapping definition in the web layer as a best practice since it is only needed in this layer.

EditModal.cshtml

Replace EditModal.cshtml content with the following content:

@page
@using Acme.BookStore.Localization
@using Acme.BookStore.Web.Pages.Books
@using Microsoft.Extensions.Localization
@using Volo.Abp.AspNetCore.Mvc.UI.Bootstrap.TagHelpers.Modal
@model EditModalModel
@inject IStringLocalizer<BookStoreResource> L
@{
    Layout = null;
}
<abp-dynamic-form abp-model="Book" asp-page="/Books/EditModal">
    <abp-modal>
        <abp-modal-header title="@L["Update"].Value"></abp-modal-header>
        <abp-modal-body>
            <abp-input asp-for="Id" />
            <abp-form-content />
        </abp-modal-body>
        <abp-modal-footer buttons="@(AbpModalButtons.Cancel|AbpModalButtons.Save)"></abp-modal-footer>
    </abp-modal>
</abp-dynamic-form>

This page is very similar to the CreateModal.cshtml, except:

• It includes an abp-input for the Id property to store Id of the editing book (which is a hidden input).
• It uses Books/EditModal as the post URL.

Add "Actions" Dropdown to the Table

We will add a dropdown button to the table named Actions.

Open the Pages/Books/Index.js and replace the content as below:

$(function () {
    var l = abp.localization.getResource('BookStore');
    var createModal = new abp.ModalManager(abp.appPath + 'Books/CreateModal');
    var editModal = new abp.ModalManager(abp.appPath + 'Books/EditModal');

    var dataTable = $('#BooksTable').DataTable(
        abp.libs.datatables.normalizeConfiguration({
                ajax: abp.libs.datatables.createAjax(acme.bookStore.books.book.getList),
                columnDefs: [
                    {
                        title: l('Actions'),
                        rowAction: {
                            items:
                                [
                                    {
                                        text: l('Edit'),
                                        action: function (data) {
                                            editModal.open({ id: data.record.id });
                                        }
                                    }
                                ]
                        }
                    },
                    {
                        title: l('Name'),
                        data: "name"
                    },
                    {
                        title: l('Type'),
                        data: "type",
                        render: function (data) {
                            return l('Enum:BookType:' + data);
                        }
                    },
                    {
                        title: l('PublishDate'),
                        data: "publishDate",
                        render: function (data) {
                            return luxon
                                .DateTime
                                .fromISO(data, {
                                    locale: abp.localization.currentCulture.name
                                }).toLocaleString();
                        }
                    },
                    {
                        title: l('Price'),
                        data: "price"
                    },
                    {
                        title: l('CreationTime'), data: "creationTime",
                        render: function (data) {
                            return luxon
                                .DateTime
                                .fromISO(data, {
                                    locale: abp.localization.currentCulture.name
                                }).toLocaleString(luxon.DateTime.DATETIME_SHORT);
                        }
                    }
                ]
            }
        )
    );

    createModal.onResult(function () {
        dataTable.ajax.reload();
    });

    editModal.onResult(function () {
        dataTable.ajax.reload();
    });

    $('#NewBookButton').click(function (e) {
        e.preventDefault();
        createModal.open();
    });
});

• Added a new ModalManager named editModal to open the edit modal dialog.
• Added a new column at the beginning of the columnDefs section. This column is used for the "Actions" dropdown button.
• "Edit" action simply calls editModal.open() to open the edit dialog.
• editModal.onResult(...) callback refreshes the data table when you close the edit modal.

You can run the application and edit any book by selecting the edit action on a book.

The final UI looks as below:

Deleting a Book

Open the Pages/Books/Index.js and add a new item to the rowAction items:

{
    text: l('Delete'),
    confirmMessage: function (data) {
        return l('BookDeletionConfirmationMessage', data.record.name);
    },
    action: function (data) {
        acme.bookStore.books.book
            .delete(data.record.id)
            .then(function() {
                abp.notify.info(l('SuccessfullyDeleted'));
                dataTable.ajax.reload();
            });
    }
}

• confirmMessage option is used to ask a confirmation question before executing the action.
• acme.bookStore.books.book.delete(...) method makes an AJAX request to the server to delete a book.
• abp.notify.info() shows a notification after the delete operation.

Since we've used two new localization texts (BookDeletionConfirmationMessage and SuccessfullyDeleted) you need to add these to the localization file (en.json under the Localization/BookStore folder of the Acme.BookStore.Domain.Shared project):

"BookDeletionConfirmationMessage": "Are you sure to delete the book '{0}'?",
"SuccessfullyDeleted": "Successfully deleted!"

The final Index.js content is shown below:

$(function () {
    var l = abp.localization.getResource('BookStore');
    var createModal = new abp.ModalManager(abp.appPath + 'Books/CreateModal');
    var editModal = new abp.ModalManager(abp.appPath + 'Books/EditModal');

    var dataTable = $('#BooksTable').DataTable(
        abp.libs.datatables.normalizeConfiguration({
                ajax: abp.libs.datatables.createAjax(acme.bookStore.books.book.getList),
                columnDefs: [
                    {
                        title: l('Actions'),
                        rowAction: {
                            items:
                                [
                                    {
                                        text: l('Edit'),
                                        action: function (data) {
                                            editModal.open({ id: data.record.id });
                                        }
                                    },
                                    {
                                        text: l('Delete'),
                                        confirmMessage: function (data) {
                                            return l(
                                                'BookDeletionConfirmationMessage',
                                                data.record.name
                                            );
                                        },
                                        action: function (data) {
                                            acme.bookStore.books.book
                                                .delete(data.record.id)
                                                .then(function() {
                                                    abp.notify.info(
                                                        l('SuccessfullyDeleted')
                                                    );
                                                    dataTable.ajax.reload();
                                                });
                                        }
                                    }
                                ]
                        }
                    },
                    {
                        title: l('Name'),
                        data: "name"
                    },
                    {
                        title: l('Type'),
                        data: "type",
                        render: function (data) {
                            return l('Enum:BookType:' + data);
                        }
                    },
                    {
                        title: l('PublishDate'),
                        data: "publishDate",
                        render: function (data) {
                            return luxon
                                .DateTime
                                .fromISO(data, {
                                    locale: abp.localization.currentCulture.name
                                }).toLocaleString();
                        }
                    },
                    {
                        title: l('Price'),
                        data: "price"
                    },
                    {
                        title: l('CreationTime'), data: "creationTime",
                        render: function (data) {
                            return luxon
                                .DateTime
                                .fromISO(data, {
                                    locale: abp.localization.currentCulture.name
                                }).toLocaleString(luxon.DateTime.DATETIME_SHORT);
                        }
                    }
                ]
            }
        )
    );

    createModal.onResult(function () {
        dataTable.ajax.reload();
    });

    editModal.onResult(function () {
        dataTable.ajax.reload();
    });

    $('#NewBookButton').click(function (e) {
        e.preventDefault();
        createModal.open();
    });
});

You can run the application and try to delete a book.

{{end}}

{{if UI == "NG"}}

Creating a new book

In this section, you will learn how to create a new modal dialog form to create a new book.

Add a modal to BookListComponent

Open book-list.component.ts file in app\book\book-list folder and replace the content as below:

import { ListService, PagedResultDto } from '@abp/ng.core';
import { Component, OnInit } from '@angular/core';
import { BookDto, BookType } from '../models';
import { BookService } from '../services';

@Component({
  selector: 'app-book-list',
  templateUrl: './book-list.component.html',
  styleUrls: ['./book-list.component.scss'],
  providers: [ListService],
})
export class BookListComponent implements OnInit {
  book = { items: [], totalCount: 0 } as PagedResultDto<BookDto>;

  booksType = BookType;

  isModalOpen = false; // <== added this line ==>

  constructor(public readonly list: ListService, private bookService: BookService) {}

  ngOnInit() {
    const bookStreamCreator = (query) => this.bookService.getListByInput(query);

    this.list.hookToQuery(bookStreamCreator).subscribe((response) => {
      this.book = response;
    });
  }

  // added createBook method
  createBook() {
    this.isModalOpen = true;
  }
}

• We defined a variable called isModalOpen and createBook method.
• We added the createBook method.

Open book-list.component.html file in books\book-list folder and replace the content as below:

<div class="card">
  <div class="card-header">
    <div class="row">
      <div class="col col-md-6">
        <h5 class="card-title">{%{{{ '::Menu:Books' | abpLocalization }}}%}</h5>
      </div>
      <!--Added new book button -->
      <div class="text-right col col-md-6">
        <div class="text-lg-right pt-2">
          <button id="create" class="btn btn-primary" type="button" (click)="createBook()">
            <i class="fa fa-plus mr-1"></i>
            <span>{%{{{ "::NewBook" | abpLocalization }}}%}</span>
          </button>
        </div>
      </div>
    </div>
  </div>
  <div class="card-body">
    <ngx-datatable [rows]="book.items" [count]="book.totalCount" [list]="list" default>
      <ngx-datatable-column [name]="'::Name' | abpLocalization" prop="name"></ngx-datatable-column>
      <ngx-datatable-column [name]="'::Type' | abpLocalization" prop="type">
        <ng-template let-row="row" ngx-datatable-cell-template>
          {%{{{ booksType[row.type] }}}%}
        </ng-template>
      </ngx-datatable-column>
      <ngx-datatable-column [name]="'::PublishDate' | abpLocalization" prop="publishDate">
        <ng-template let-row="row" ngx-datatable-cell-template>
          {%{{{ row.publishDate | date }}}%}
        </ng-template>
      </ngx-datatable-column>
      <ngx-datatable-column [name]="'::Price' | abpLocalization" prop="price">
        <ng-template let-row="row" ngx-datatable-cell-template>
          {%{{{ row.price | currency }}}%}
        </ng-template>
      </ngx-datatable-column>
    </ngx-datatable>
  </div>
</div>

<!--added modal-->
<abp-modal [(visible)]="isModalOpen">
  <ng-template #abpHeader>
    <h3>{%{{{ '::NewBook' | abpLocalization }}}%}</h3>
  </ng-template>

  <ng-template #abpBody> </ng-template>

  <ng-template #abpFooter>
    <button type="button" class="btn btn-secondary" #abpClose>
      {%{{{ 'AbpAccount::Close' | abpLocalization }}}%}
    </button>
  </ng-template>
</abp-modal>

• We added the abp-modal which renders a modal to allow user to create a new book.
• abp-modal is a pre-built component to show modals. While you could use another approach to show a modal, abp-modal provides additional benefits.
• We added New book button to the AbpContentToolbar.

You can open your browser and click New book button to see the new modal.

Create a reactive form

Reactive forms provide a model-driven approach to handling form inputs whose values change over time.

Open book-list.component.ts file in app\book\book-list folder and replace the content as below:

import { ListService, PagedResultDto } from '@abp/ng.core';
import { Component, OnInit } from '@angular/core';
import { BookDto, BookType } from '../models';
import { BookService } from '../services';
import { FormGroup, FormBuilder, Validators } from '@angular/forms'; // <== added this line ==>

@Component({
  selector: 'app-book-list',
  templateUrl: './book-list.component.html',
  styleUrls: ['./book-list.component.scss'],
  providers: [ListService],
})
export class BookListComponent implements OnInit {
  book = { items: [], totalCount: 0 } as PagedResultDto<BookDto>;

  booksType = BookType;

  isModalOpen = false;

  form: FormGroup; // <== added this line ==>

  constructor(
    public readonly list: ListService,
    private bookService: BookService,
    private fb: FormBuilder // <== injected FormBuilder ==>
  ) {}

  ngOnInit() {
    const bookStreamCreator = (query) => this.bookService.getListByInput(query);

    this.list.hookToQuery(bookStreamCreator).subscribe((response) => {
      this.book = response;
    });
  }

  createBook() {
    this.buildForm(); // <== added this line ==>
    this.isModalOpen = true;
  }

  // added buildForm method
  buildForm() {
    this.form = this.fb.group({
      name: ['', Validators.required],
      type: [null, Validators.required],
      publishDate: [null, Validators.required],
      price: [null, Validators.required],
    });
  }
}

• We imported FormGroup, FormBuilder and Validators.
• We added form: FormGroup variable.
• We injected fb: FormBuilder service to the constructor. The FormBuilder service provides convenient methods for generating controls. It reduces the amount of boilerplate needed to build complex forms.
• We added buildForm method to the end of the file and executed buildForm() in the createBook method. This method creates a reactive form to be able to create a new book.
  • The group method of FormBuilder, fb creates a FormGroup.
  • Added Validators.required static method which validates the relevant form element.

Create the DOM elements of the form

Open book-list.component.html in app\books\book-list folder and replace <ng-template #abpBody> </ng-template> with the following code part:

<ng-template #abpBody>
  <form [formGroup]="form">
    <div class="form-group">
      <label for="book-name">Name</label><span> * </span>
      <input type="text" id="book-name" class="form-control" formControlName="name" autofocus />
    </div>

    <div class="form-group">
      <label for="book-price">Price</label><span> * </span>
      <input type="number" id="book-price" class="form-control" formControlName="price" />
    </div>

    <div class="form-group">
      <label for="book-type">Type</label><span> * </span>
      <select class="form-control" id="book-type" formControlName="type">
        <option [ngValue]="null">Select a book type</option>
        <option [ngValue]="booksType[type]" *ngFor="let type of bookTypeArr"> {%{{{ type }}}%}</option>
      </select>
    </div>

    <div class="form-group">
      <label>Publish date</label><span> * </span>
      <input
        #datepicker="ngbDatepicker"
        class="form-control"
        name="datepicker"
        formControlName="publishDate"
        ngbDatepicker
        (click)="datepicker.toggle()"
      />
    </div>
  </form>
</ng-template>

• This template creates a form with Name, Price, Type and Publish date fields.
• We've used NgBootstrap datepicker in this component.

Datepicker requirements

Open book.module.ts file in app\book folder and replace the content as below:

import { NgModule } from '@angular/core';
import { CommonModule } from '@angular/common';
import { BookRoutingModule } from './book-routing.module';
import { BookListComponent } from './book-list/book-list.component';
import { SharedModule } from '../shared/shared.module';
import { NgbDatepickerModule } from '@ng-bootstrap/ng-bootstrap'; //<== added this line ==>

@NgModule({
  declarations: [BookListComponent],
  imports: [
    CommonModule,
    BookRoutingModule,
    SharedModule,
    NgbDatepickerModule, //<== added this line ==>
  ],
})
export class BookModule {}

• We imported NgbDatepickerModule to be able to use the date picker.

Open book-list.component.ts file in app\book\book-list folder and replace the content as below:

import { ListService, PagedResultDto } from '@abp/ng.core';
import { Component, OnInit } from '@angular/core';
import { BookDto, BookType } from '../models';
import { BookService } from '../services';
import { FormGroup, FormBuilder, Validators } from '@angular/forms';
import { NgbDateNativeAdapter, NgbDateAdapter } from '@ng-bootstrap/ng-bootstrap'; // <== added this line ==>

@Component({
  selector: 'app-book-list',
  templateUrl: './book-list.component.html',
  styleUrls: ['./book-list.component.scss'],
  providers: [ListService, { provide: NgbDateAdapter, useClass: NgbDateNativeAdapter }], // <== added a provide ==>
})
export class BookListComponent implements OnInit {
  book = { items: [], totalCount: 0 } as PagedResultDto<BookDto>;

  booksType = BookType;

  // <== added bookTypeArr array ==>
  bookTypeArr = Object.keys(BookType).filter(
    (bookType) => typeof this.booksType[bookType] === 'number'
  );

  isModalOpen = false;

  form: FormGroup;

  constructor(
    public readonly list: ListService,
    private bookService: BookService,
    private fb: FormBuilder
  ) {}

  ngOnInit() {
    const bookStreamCreator = (query) => this.bookService.getListByInput(query);

    this.list.hookToQuery(bookStreamCreator).subscribe((response) => {
      this.book = response;
    });
  }

  createBook() {
    this.buildForm();
    this.isModalOpen = true;
  }

  buildForm() {
    this.form = this.fb.group({
      name: ['', Validators.required],
      type: [null, Validators.required],
      publishDate: [null, Validators.required],
      price: [null, Validators.required],
    });
  }
}

• We imported NgbDateNativeAdapter, NgbDateAdapter

• We added a new provider NgbDateAdapter that converts Datepicker value to Date type. See the datepicker adapters for more details.

• We added bookTypeArr array to be able to use it in the combobox values. The bookTypeArr contains the fields of the BookType enum. Resulting array is shown below:

  ['Adventure', 'Biography', 'Dystopia', 'Fantastic' ...]
  

  This array was used in the previous form template in the ngFor loop.

Now, you can open your browser to see the changes:

Saving the book

Open book-list.component.ts file in app\book\book-list folder and replace the content as below:

import { ListService, PagedResultDto } from '@abp/ng.core';
import { Component, OnInit } from '@angular/core';
import { BookDto, BookType } from '../models';
import { BookService } from '../services';
import { FormGroup, FormBuilder, Validators } from '@angular/forms';
import { NgbDateNativeAdapter, NgbDateAdapter } from '@ng-bootstrap/ng-bootstrap';

@Component({
  selector: 'app-book-list',
  templateUrl: './book-list.component.html',
  styleUrls: ['./book-list.component.scss'],
  providers: [ListService, { provide: NgbDateAdapter, useClass: NgbDateNativeAdapter }],
})
export class BookListComponent implements OnInit {
  book = { items: [], totalCount: 0 } as PagedResultDto<BookDto>;

  booksType = BookType;

  bookTypeArr = Object.keys(BookType).filter(
    (bookType) => typeof this.booksType[bookType] === 'number'
  );

  isModalOpen = false;

  form: FormGroup;

  constructor(
    public readonly list: ListService,
    private bookService: BookService,
    private fb: FormBuilder
  ) {}

  ngOnInit() {
    const bookStreamCreator = (query) => this.bookService.getListByInput(query);

    this.list.hookToQuery(bookStreamCreator).subscribe((response) => {
      this.book = response;
    });
  }

  createBook() {
    this.buildForm();
    this.isModalOpen = true;
  }

  buildForm() {
    this.form = this.fb.group({
      name: ['', Validators.required],
      type: [null, Validators.required],
      publishDate: [null, Validators.required],
      price: [null, Validators.required],
    });
  }

  // <== added save ==>
  save() {
    if (this.form.invalid) {
      return;
    }

    this.bookService.createByInput(this.form.value).subscribe(() => {
      this.isModalOpen = false;
      this.form.reset();
      this.list.get();
    });
  }
}

• We added save method

Open book-list.component.html in app\book\book-list folder, find the <ng-template #abpFooter> element and replace this element with the following to create a new book.

<ng-template #abpFooter>
  <button type="button" class="btn btn-secondary" #abpClose>
      {%{{{ 'AbpAccount::Close' | abpLocalization }}}%}
  </button>

  <!--added save button-->
  <button class="btn btn-primary" (click)="save()" [disabled]="form.invalid">
        <i class="fa fa-check mr-1"></i>
        {%{{{ 'AbpAccount::Save' | abpLocalization }}}%}
  </button>
</ng-template>

Find the <form [formGroup]="form"> tag and replace below content:

<form [formGroup]="form" (ngSubmit)="save()"> <!-- added the ngSubmit -->

• We added the (ngSubmit)="save()" to <form> element to save a new book by pressing the enter.
• We added abp-button to the bottom area of the modal to save a new book.

The final modal UI looks like below:

Updating a book

Open book-list.component.ts in app\book\book-list folder and add a variable named selectedBook.

import { ListService, PagedResultDto } from '@abp/ng.core';
import { Component, OnInit } from '@angular/core';
import { BookDto, BookType } from '../models';
import { BookService } from '../services';
import { FormGroup, FormBuilder, Validators } from '@angular/forms';
import { NgbDateNativeAdapter, NgbDateAdapter } from '@ng-bootstrap/ng-bootstrap';

@Component({
  selector: 'app-book-list',
  templateUrl: './book-list.component.html',
  styleUrls: ['./book-list.component.scss'],
  providers: [ListService, { provide: NgbDateAdapter, useClass: NgbDateNativeAdapter }],
})
export class BookListComponent implements OnInit {
  book = { items: [], totalCount: 0 } as PagedResultDto<BookDto>;

  booksType = BookType;

  bookTypeArr = Object.keys(BookType).filter(
    (bookType) => typeof this.booksType[bookType] === 'number'
  );

  isModalOpen = false;

  form: FormGroup;

  selectedBook = {} as BookDto; // <== declared selectedBook ==>

  constructor(
    public readonly list: ListService,
    private bookService: BookService,
    private fb: FormBuilder
  ) {}

  ngOnInit() {
    const bookStreamCreator = (query) => this.bookService.getListByInput(query);

    this.list.hookToQuery(bookStreamCreator).subscribe((response) => {
      this.book = response;
    });
  }

  // <== this method is replaced ==>
  createBook() {
    this.selectedBook = {} as BookDto; // <== added ==>
    this.buildForm();
    this.isModalOpen = true;
  }

  // <== added editBook method ==>
  editBook(id: string) {
    this.bookService.getById(id).subscribe((book) => {
      this.selectedBook = book;
      this.buildForm();
      this.isModalOpen = true;
    });
  }

  // <== this method is replaced ==>
  buildForm() {
    this.form = this.fb.group({
      name: [this.selectedBook.name || '', Validators.required],
      type: [this.selectedBook.type || null, Validators.required],
      publishDate: [
        this.selectedBook.publishDate ? new Date(this.selectedBook.publishDate) : null,
        Validators.required,
      ],
      price: [this.selectedBook.price || null, Validators.required],
    });
  }

  // <== this method is replaced ==>
  save() {
    if (this.form.invalid) {
      return;
    }

    // <== added request ==>
    const request = this.selectedBook.id
      ? this.bookService.updateByIdAndInput(this.form.value, this.selectedBook.id)
      : this.bookService.createByInput(this.form.value);

    request.subscribe(() => {
      this.isModalOpen = false;
      this.form.reset();
      this.list.get();
    });
  }
}

• We declared a variable named selectedBook as BookDto.
• We added editBook method. This method fetches the book with the given Id and sets it to selectedBook object.
• We replaced the buildForm method so that it creates the form with the selectedBook data.
• We replaced the createBook method so it sets selectedBook to an empty object.
• We replaced the save method.

Add "Actions" dropdown to the table

Open the book-list.component.html in app\book\book-list folder and replace the <div class="card-body"> tag as below:

<div class="card-body">
  <ngx-datatable [rows]="book.items" [count]="book.totalCount" [list]="list" default>
    <!-- added actions column -->
    <ngx-datatable-column
      [name]="'::Actions' | abpLocalization"
      [maxWidth]="150"
      [sortable]="false"
    >
      <ng-template let-row="row" ngx-datatable-cell-template>
        <div ngbDropdown container="body" class="d-inline-block">
          <button
            class="btn btn-primary btn-sm dropdown-toggle"
            data-toggle="dropdown"
            aria-haspopup="true"
            ngbDropdownToggle
          >
            <i class="fa fa-cog mr-1"></i>{%{{{ '::Actions' | abpLocalization }}}%}
          </button>
          <div ngbDropdownMenu>
            <button ngbDropdownItem (click)="editBook(row.id)">
              {%{{{ '::Edit' | abpLocalization }}}%}
            </button>
          </div>
        </div>
      </ng-template>
    </ngx-datatable-column>
    <ngx-datatable-column [name]="'::Name' | abpLocalization" prop="name"></ngx-datatable-column>
    <ngx-datatable-column [name]="'::Type' | abpLocalization" prop="type">
      <ng-template let-row="row" ngx-datatable-cell-template>
        {%{{{ booksType[row.type] }}}%}
      </ng-template>
    </ngx-datatable-column>
    <ngx-datatable-column [name]="'::PublishDate' | abpLocalization" prop="publishDate">
      <ng-template let-row="row" ngx-datatable-cell-template>
        {%{{{ row.publishDate | date }}}%}
      </ng-template>
    </ngx-datatable-column>
    <ngx-datatable-column [name]="'::Price' | abpLocalization" prop="price">
      <ng-template let-row="row" ngx-datatable-cell-template>
        {%{{{ row.price | currency }}}%}
      </ng-template>
    </ngx-datatable-column>
  </ngx-datatable>
</div>

• We added a ngx-datatable-column for the "Actions" column.
• We added button with ngbDropdownToggle to open actions when clicked the button.
• We have used to NgbDropdown for the dropdown menu of actions.

The final UI looks like as below:

Open book-list.component.html in app\book\book-list folder and find the <ng-template #abpHeader> tag and replace the content as below.

<ng-template #abpHeader>
    <h3>{%{{{ (selectedBook.id ? '::Edit' : '::NewBook' ) | abpLocalization }}}%}</h3>
</ng-template>

• This template will show Edit text for edit record operation, New Book for new record operation in the title.

Deleting a book

Delete confirmation popup

Open book-list.component.ts in app\book\book-list folder and inject the ConfirmationService.

Replace the constructor as below:

import { ConfirmationService } from '@abp/ng.theme.shared';
//...

constructor(
  public readonly list: ListService,
  private bookService: BookService,
  private fb: FormBuilder,
  private confirmation: ConfirmationService // <== added this line ==>
) {}

• We imported ConfirmationService.
• We injected ConfirmationService to the constructor.

See the Confirmation Popup documentation

In the book-list.component.ts add a delete method:

import { ConfirmationService, Confirmation } from '@abp/ng.theme.shared'; //<== imported Confirmation namespace ==>

//...

delete(id: string) {
  this.confirmation.warn('::AreYouSureToDelete', 'AbpAccount::AreYouSure').subscribe((status) => {
    if (status === Confirmation.Status.confirm) {
      this.bookService.deleteById(id).subscribe(() => this.list.get());
    }
  });
}

The delete method shows a confirmation popup and subscribes for the user response. The deleteById method of BookService called only if user clicks to the Yes button. The confirmation popup looks like below:

Add a delete button

Open book-list.component.html in app\book\book-list folder and modify the ngbDropdownMenu to add the delete button as shown below:

<div ngbDropdownMenu>
  <!-- added Delete button -->
    <button ngbDropdownItem (click)="delete(row.id)">
        {%{{{ 'AbpAccount::Delete' | abpLocalization }}}%}
    </button>
</div>

The final actions dropdown UI looks like below:

{{end}}

Next Part

See the next part of this tutorial.