mutants-appfx/src/datamodels/DataList.js

appfx module

import {
  action,
  computed,
  observable,
} from 'mobx';
import SearchPlan from './SearchPlan';
import DataProviderManager from '../DataProviderManager';

export default class DataList {
  // 这里还需要做些数据优化处理，加载过多数据时释放部分数据
  @observable items = [];
  @observable currentIndex;
  @observable searchPlanId;
  @observable maxCount;
  sysid;
  mid;

  constructor({
    sysid,
    mid
  }) {
    this.sysid = sysid;
    this.mid = mid;
  }

  @computed get searchPlan() {
    if (!this.searchPlanId) {
      return null;
    }
    return new SearchPlan(this.searchPlanId);
  }

  @computed get current() {
    return this.items[this.currentIndex] || null;
  }

  @action setCurrent(index) {
    this.currentIndex = index;
  }

  @action setSearchPlan(id) {
    this.searchPlanId = id;
  }

  @action async load(index = 0, limit = 100) {
    this.items.splice(index, 0, ...await DataProviderManager.getDataList({
      sysid: this.sysid,
      mid: this.mid,
      index,
      limit,
      searchPlanId: this.searchPlanId
    }));
  }
}