我有一个 ngx-pagination 的自定义分页模板实现,它可以正常工作。但是,当我尝试使用带有分页的过滤器管道时,分页中断:分页控件与应用过滤器之前保持相同,并且过滤后的数据集不再分页(屏幕上出现 11 个项目而不是 10 个) . 过滤后,分页控件在页面底部仍然可见,但不影响过滤后的数据,即没有页面更改。
组件 HTML
<task-manager-record *ngFor="let record of filteredDraftRecords | draftFilter: draftFilterArg | paginate: getPaginationOptions(tabIndex); let i = index;" [record]="record"></oir-task-manager-record>
<div class="totalRecords">
<label>Total </label>
{{ (filteredDraftRecords | draftFilter:draftFilterArg)?.length }}
</div>
<pagination *ngIf="(filteredDraftRecords | draftFilter:draftFilterArg)?.length > getPaginationOptions(tabIndex).itemsPerPage"
(pageChange)="onChangePage($event)"
[options]="getPaginationOptions(tabIndex)">
</pagination>
组件 ts
import { Component, OnInit } from '@angular/core';
import { RecordViewModel } from '../models/app.models';
import { MotionStatus } from '../models/enum.model';
import { PaginationOptions } from 'proceduralsystem-clientcomponents';
import { SelectItem } from '@motions/motions.model';
import { TaskManagerService } from './task-manager.service';
@Component({
selector: 'task-manager',
templateUrl: './task-manager.component.html',
styleUrls: ['./task-manager.component.less']
})
export class TaskManagerComponent implements OnInit {
draftrecords = new Array<RecordViewModel>();
filteredDraftRecords = new Array<RecordViewModel>();
motionStatus = MotionStatus;
draftFilterArg = 0;
tabIndex = 0;
page: { [id: string]: number} = {};
currentPage = 1;
constructor(
public taskManagerService: TaskManagerService
) {
}
ngOnInit(): void {
this.loadDraftRecords();
}
loadDraftRecords(): void {
this.taskManagerService.getDraftMotions().subscribe(m => {
this.draftRecords = m.Records;
this.filteredDraftRecords = this.draftRecords;
});
}
// Pagination functions
getPaginationOptions(tabIndex: number): PaginationOptions {
const paginationId = `tab${tabIndex}`;
return {
id: 'tab',
itemsPerPage: 10,
currentPage: this.page[paginationId],
totalItems: this.draftRecords.length
};
}
onChangePage(pageNumber) {
this.page[`tab${this.tabIndex}`] = pageNumber;
}
}
过滤管道导入 { Pipe, PipeTransform } from '@angular/core';
@Pipe({
name: 'draftFilter'
})
export class DraftFilterPipe implements PipeTransform {
transform(value: any, args?: any): any {
if(args) {
return value.filter(item => item.status.id === args);
} else {
return value;
}
}
}
编辑:添加演示。代码有点不同,经过重构以删除不需要的代码。https://stackblitz.com/edit/angular-fnbnaw