import { Table } from "./interface";
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import { reactive, computed, toRefs } from "vue";
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/**
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* @description table 页面操作方法封装
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* @param {Function} api 获取表格数据 api 方法 (必传)
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* @param {Object} initParam 获取数据初始化参数 (非必传，默认为{})
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* @param {Boolean} isPageable 是否有分页 (非必传，默认为true)
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* @param {Function} dataCallBack 对后台返回的数据进行处理的方法 (非必传)
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* */
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export const useTable = (
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api?: (params: any) => Promise<any>,
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initParam: object = {},
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isPageable: boolean = true,
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dataCallBack?: (data: any) => any,
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requestError?: (error: any) => void
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) => {
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const state = reactive<Table.StateProps>({
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// 表格数据
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tableData: [],
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// 分页数据
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pageable: {
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// 当前页数
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pageNum: 1,
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// 每页显示条数
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pageSize: 10,
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// 总条数
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total: 0
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},
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// 查询参数(只包括查询)
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searchParam: {},
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// 初始化默认的查询参数
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searchInitParam: {},
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// 总参数(包含分页和查询参数)
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totalParam: {}
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});
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/**
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* @description 分页查询参数(只包括分页和表格字段排序,其他排序方式可自行配置)
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* */
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const pageParam = computed({
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get: () => {
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return {
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pageNum: state.pageable.pageNum,
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pageSize: state.pageable.pageSize
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};
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},
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set: (newVal: any) => {
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console.log("我是分页更新之后的值", newVal);
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}
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});
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/**
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* @description 获取表格数据
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* @return void
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* */
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const getTableList = async () => {
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if (!api) return;
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try {
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// 先把初始化参数和分页参数放到总参数里面
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Object.assign(state.totalParam, initParam, isPageable ? pageParam.value : {});
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let { data } = await api({ ...state.searchInitParam, ...state.totalParam });
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dataCallBack && (data = dataCallBack(data));
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state.tableData = isPageable ? data.list : data;
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// 解构后台返回的分页数据 (如果有分页更新分页信息)
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if (isPageable) {
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state.pageable.total = data.total;
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}
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} catch (error) {
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requestError && requestError(error);
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}
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};
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/**
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* @description 更新查询参数
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* @return void
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* */
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const updatedTotalParam = () => {
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state.totalParam = {};
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// 处理查询参数，可以给查询参数加自定义前缀操作
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let nowSearchParam: Table.StateProps["searchParam"] = {};
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// 防止手动清空输入框携带参数（这里可以自定义查询参数前缀）
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for (let key in state.searchParam) {
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// 某些情况下参数为 false/0 也应该携带参数
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if (state.searchParam[key] || state.searchParam[key] === false || state.searchParam[key] === 0) {
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nowSearchParam[key] = state.searchParam[key];
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}
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}
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Object.assign(state.totalParam, nowSearchParam);
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};
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/**
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* @description 表格数据查询
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* @return void
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* */
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const search = () => {
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state.pageable.pageNum = 1;
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updatedTotalParam();
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getTableList();
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};
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/**
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* @description 表格数据重置
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* @return void
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* */
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const reset = () => {
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state.pageable.pageNum = 1;
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// 重置搜索表单的时，如果有默认搜索参数，则重置默认的搜索参数
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state.searchParam = { ...state.searchInitParam };
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updatedTotalParam();
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getTableList();
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};
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/**
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* @description 每页条数改变
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* @param {Number} val 当前条数
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* @return void
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* */
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const handleSizeChange = (val: number) => {
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state.pageable.pageNum = 1;
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state.pageable.pageSize = val;
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getTableList();
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};
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/**
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* @description 当前页改变
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* @param {Number} val 当前页
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* @return void
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* */
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const handleCurrentChange = (val: number) => {
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state.pageable.pageNum = val;
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getTableList();
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};
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return {
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...toRefs(state),
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getTableList,
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search,
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reset,
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handleSizeChange,
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handleCurrentChange,
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updatedTotalParam
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};
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};
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