@itexpert-dev/base-universal-table/src/baseComponents/universalTablePagination/BaseUniversalTablePaginator.ts

base universal table for build tables

import {BaseUniversalTableComponent} from "../common/baseUniversalTableComponent";
import {isNullOrUndefined} from "@itexpert-dev/tiny-helpers";
import {IUniversalTableCtrl} from "../../../contracts/IUniversalTableCtrl";

abstract class BaseUniversalTablePaginator extends BaseUniversalTableComponent{
    public offset: number;
    public count: number;
    public limitSteps: number[];
    public limit: number;

    public page:number = null;

    constructor(tableCtrl: IUniversalTableCtrl){
        super(tableCtrl);
        this.limitSteps = this.tableCtrl.config.getDefaultLimitSteps();
        let stateStream = this.tableCtrl.stateStream;

        stateStream.filter(next=>next.hasOwnProperty('offset'))
            .subscribe(
                next=>{
                    this.offset = next.offset
                }
            );

        stateStream.filter(next=>next.hasOwnProperty('limit'))
            .subscribe(
                next=>{
                    this.limit = next.limit
                }
            );
        stateStream.filter(next=>next.hasOwnProperty('totalResult'))
            .subscribe(
                next=>{
                    this.count = next.totalResult
                }
            );

    }

    public changeLimit(newValue: string){
        this.limit = parseInt(newValue);
        this.changePage(1);
    }
    public changePage(newPage: number){
        if(!isNullOrUndefined(this.limit)){
            this.page = newPage;
            this.offset = ((newPage-1)*this.limit);

            this.tableCtrl.updateState({
                offset: this.offset,
                limit: this.limit
            }).subscribe();
        }
    }
}

export {BaseUniversalTablePaginator}