Product Group renamed to Menu Category

Extracted Product Group -> Group_type to a a new object called Sale Category.
Moved tax from product to Sale Category for uniform taxes on types of sales.

bookie/src/app/sale-category/sale-category-detail/sale-category-detail.component.css

@@ -0,0 +1,3 @@
+.example-card {
+  max-width: 400px;
+}

bookie/src/app/sale-category/sale-category-detail/sale-category-detail.component.html

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+<div fxLayout="row" fxFlex="50%" fxLayoutAlign="space-around center" class="example-card">
+  <mat-card fxFlex>
+    <mat-card-title-group>
+      <mat-card-title>Sale Category</mat-card-title>
+    </mat-card-title-group>
+    <mat-card-content>
+      <form [formGroup]="form" fxLayout="column">
+        <div fxLayout="row" fxLayoutAlign="space-around start" fxLayout.lt-md="column" fxLayoutGap="20px"
+             fxLayoutGap.lt-md="0px">
+          <mat-form-field fxFlex>
+            <mat-label>Name</mat-label>
+            <input matInput #nameElement placeholder="Name" formControlName="name">
+          </mat-form-field>
+        </div>
+        <div fxLayout="row" fxLayoutAlign="space-around start" fxLayout.lt-md="column" fxLayoutGap="20px"
+             fxLayoutGap.lt-md="0px">
+          <mat-form-field fxFlex>
+            <mat-label>Tax</mat-label>
+            <mat-select placeholder="Tax" formControlName="tax">
+              <mat-option *ngFor="let t of taxes" [value]="t.id">
+                {{ t.name }}
+               </mat-option>
+             </mat-select>
+           </mat-form-field>
+        </div>
+      </form>
+    </mat-card-content>
+    <mat-card-actions>
+      <button mat-raised-button [disabled]="item.isFixture" color="primary" (click)="save()">Save</button>
+      <button mat-raised-button [disabled]="item.isFixture" color="warn" (click)="confirmDelete()" *ngIf="!!item.id">Delete</button>
+    </mat-card-actions>
+  </mat-card>
+</div>

bookie/src/app/sale-category/sale-category-detail/sale-category-detail.component.spec.ts

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+import {async, ComponentFixture, TestBed} from '@angular/core/testing';
+
+import {SaleCategoryDetailComponent} from './sale-category-detail.component';
+
+describe('SaleCategoryDetailComponent', () => {
+  let component: SaleCategoryDetailComponent;
+  let fixture: ComponentFixture<SaleCategoryDetailComponent>;
+
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [SaleCategoryDetailComponent]
+    })
+      .compileComponents();
+  }));
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(SaleCategoryDetailComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

bookie/src/app/sale-category/sale-category-detail/sale-category-detail.component.ts

@@ -0,0 +1,108 @@
+import { AfterViewInit, Component, ElementRef, OnInit, ViewChild } from '@angular/core';
+import { FormBuilder, FormGroup } from '@angular/forms';
+import { ActivatedRoute, Router } from '@angular/router';
+import { MatDialog } from "@angular/material";
+
+import { SaleCategoryService } from '../sale-category.service';
+import { SaleCategory } from '../../core/sale-category';
+import { ToasterService } from '../../core/toaster.service';
+import { ConfirmDialogComponent } from "../../shared/confirm-dialog/confirm-dialog.component";
+import { Tax } from "../../core/tax";
+
+@Component({
+  selector: 'app-sale-category-detail',
+  templateUrl: './sale-category-detail.component.html',
+  styleUrls: ['./sale-category-detail.component.css']
+})
+export class SaleCategoryDetailComponent implements OnInit, AfterViewInit {
+  @ViewChild('nameElement', { static: true }) nameElement: ElementRef;
+  form: FormGroup;
+  taxes: Tax[];
+  item: SaleCategory;
+
+  constructor(
+    private route: ActivatedRoute,
+    private router: Router,
+    private dialog: MatDialog,
+    private fb: FormBuilder,
+    private toaster: ToasterService,
+    private ser: SaleCategoryService
+  ) {
+    this.createForm();
+  }
+
+  createForm() {
+    this.form = this.fb.group({
+      name: '',
+      tax: ''
+    });
+  }
+
+  ngOnInit() {
+    this.route.data
+      .subscribe((data: { item: SaleCategory, taxes: Tax[] }) => {
+        this.showItem(data.item);
+        this.taxes = data.taxes;
+      });
+  }
+
+  showItem(item: SaleCategory) {
+    this.item = item;
+    this.form.setValue({
+      name: this.item.name,
+      tax: this.item.tax.id ? this.item.tax.id : ''
+    });
+  }
+
+  ngAfterViewInit() {
+    setTimeout(() => {
+      this.nameElement.nativeElement.focus();
+    }, 0);
+  }
+
+  save() {
+    this.ser.saveOrUpdate(this.getItem())
+      .subscribe(
+        (result) => {
+          this.toaster.show('Success', '');
+          this.router.navigateByUrl('/sale-categories');
+        },
+        (error) => {
+          this.toaster.show('Danger', error.error);
+        }
+      );
+  }
+
+  delete() {
+    this.ser.delete(this.item.id)
+      .subscribe(
+        (result) => {
+          this.toaster.show('Success', '');
+          this.router.navigateByUrl('/sale-categories');
+        },
+        (error) => {
+          this.toaster.show('Danger', error.error);
+        }
+      );
+  }
+
+  confirmDelete(): void {
+    const dialogRef = this.dialog.open(ConfirmDialogComponent, {
+      width: '250px',
+      data: {title: 'Delete Sale Category?', content: 'Are you sure? This cannot be undone.'}
+    });
+
+    dialogRef.afterClosed().subscribe((result: boolean) => {
+      if (result) {
+        this.delete();
+      }
+    });
+  }
+
+  getItem(): SaleCategory {
+    const formModel = this.form.value;
+    this.item.name = formModel.name;
+    this.item.tax.id = formModel.tax;
+    return this.item;
+  }
+}