267 lines
7.3 KiB
JavaScript
267 lines
7.3 KiB
JavaScript
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/**
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* 通用js方法封装处理
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* Copyright (c) 2019 ruoyi
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*/
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// 日期格式化
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export function parseTime(time, pattern) {
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if (arguments.length === 0 || !time) {
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return null
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}
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const format = pattern || '{y}-{m}-{d} {h}:{i}:{s}'
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let date
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if (typeof time === 'object') {
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date = time
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} else {
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if ((typeof time === 'string') && (/^[0-9]+$/.test(time))) {
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time = parseInt(time)
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} else if (typeof time === 'string') {
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time = time.replace(new RegExp(/-/gm), '/').replace('T', ' ').replace(new RegExp(/\.[\d]{3}/gm), '')
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}
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if ((typeof time === 'number') && (time.toString().length === 10)) {
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time = time * 1000
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}
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date = new Date(time)
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}
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const formatObj = {
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y: date.getFullYear(),
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m: date.getMonth() + 1,
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d: date.getDate(),
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h: date.getHours(),
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i: date.getMinutes(),
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s: date.getSeconds(),
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a: date.getDay()
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}
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const time_str = format.replace(/{(y|m|d|h|i|s|a)+}/g, (result, key) => {
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let value = formatObj[key]
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// Note: getDay() returns 0 on Sunday
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if (key === 'a') { return ['日', '一', '二', '三', '四', '五', '六'][value] }
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if (result.length > 0 && value < 10) {
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value = '0' + value
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}
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return value || 0
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})
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return time_str
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}
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// 表单重置
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export function resetForm(refName) {
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if (this.$refs[refName]) {
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this.$refs[refName].resetFields()
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}
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}
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// 添加日期范围
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export function addDateRange(params, dateRange, propName) {
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const search = params
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search.params = typeof (search.params) === 'object' && search.params !== null && !Array.isArray(search.params) ? search.params : {}
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dateRange = Array.isArray(dateRange) ? dateRange : []
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if (typeof (propName) === 'undefined') {
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search.params['beginTime'] = dateRange[0]
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search.params['endTime'] = dateRange[1]
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} else {
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search.params['begin' + propName] = dateRange[0]
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search.params['end' + propName] = dateRange[1]
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}
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return search
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}
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// 回显数据字典
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export function selectDictLabel(datas, value) {
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var actions = []
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Object.keys(datas).some((key) => {
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if (datas[key].value == ('' + value)) {
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actions.push(datas[key].label)
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return true
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}
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})
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return actions.join('')
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}
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// 回显数据字典（字符串数组）
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export function selectDictLabels(datas, value, separator) {
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if (value === undefined) {
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return ''
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}
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var actions = []
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var currentSeparator = undefined === separator ? ',' : separator
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var temp = value.split(currentSeparator)
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Object.keys(value.split(currentSeparator)).some((val) => {
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Object.keys(datas).some((key) => {
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if (datas[key].value == ('' + temp[val])) {
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actions.push(datas[key].label + currentSeparator)
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}
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})
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})
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return actions.join('').substring(0, actions.join('').length - 1)
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}
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// 字符串格式化(%s )
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export function sprintf(str) {
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var args = arguments; var flag = true; var i = 1
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str = str.replace(/%s/g, function() {
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var arg = args[i++]
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if (typeof arg === 'undefined') {
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flag = false
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return ''
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}
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return arg
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})
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return flag ? str : ''
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}
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// 转换字符串，undefined,null等转化为""
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export function parseStrEmpty(str) {
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if (!str || str == 'undefined' || str == 'null') {
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return ''
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}
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return str
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}
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// 数据合并
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export function mergeRecursive(source, target) {
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for (var p in target) {
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try {
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if (target[p].constructor == Object) {
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source[p] = mergeRecursive(source[p], target[p])
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} else {
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source[p] = target[p]
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}
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} catch (e) {
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source[p] = target[p]
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}
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}
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return source
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}
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/**
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* 构造树型结构数据
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* @param {*} data 数据源
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* @param {*} id id字段 默认 'id'
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* @param {*} parentId 父节点字段 默认 'parentId'
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* @param {*} children 孩子节点字段 默认 'children'
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*/
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export function handleTree(data, id, parentId, children) {
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const config = {
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id: id || 'id',
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parentId: parentId || 'parentId',
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childrenList: children || 'children'
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}
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var childrenListMap = {}
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var nodeIds = {}
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var tree = []
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for (const d of data) {
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const parentId = d[config.parentId]
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if (childrenListMap[parentId] == null) {
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childrenListMap[parentId] = []
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}
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nodeIds[d[config.id]] = d
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childrenListMap[parentId].push(d)
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}
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for (const d of data) {
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const parentId = d[config.parentId]
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if (nodeIds[parentId] == null) {
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tree.push(d)
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}
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}
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for (const t of tree) {
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adaptToChildrenList(t)
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}
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function adaptToChildrenList(o) {
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if (childrenListMap[o[config.id]] !== null) {
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o[config.childrenList] = childrenListMap[o[config.id]]
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}
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if (o[config.childrenList]) {
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for (const c of o[config.childrenList]) {
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adaptToChildrenList(c)
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}
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}
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}
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return tree
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}
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/**
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* 参数处理
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* @param {*} params 参数
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*/
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export function tansParams(params) {
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let result = ''
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for (const propName of Object.keys(params)) {
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const value = params[propName]
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var part = encodeURIComponent(propName) + '='
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if (value !== null && typeof (value) !== 'undefined') {
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if (typeof value === 'object') {
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for (const key of Object.keys(value)) {
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if (value[key] !== null && typeof (value[key]) !== 'undefined') {
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const params = propName + '[' + key + ']'
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var subPart = encodeURIComponent(params) + '='
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result += subPart + encodeURIComponent(value[key]) + '&'
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}
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}
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} else {
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result += part + encodeURIComponent(value) + '&'
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}
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}
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}
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return result
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}
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// 验证是否为blob格式
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export async function blobValidate(data) {
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try {
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const text = await data.text()
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JSON.parse(text)
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return false
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} catch (error) {
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return true
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}
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}
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/**
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* 自动列宽
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* flexWidth: https://blog.csdn.net/luoyumeiluoyumei/article/details/125853152?utm_medium=distribute.pc_relevant.none-task-blog-2~default~baidujs_baidulandingword~default-1-125853152-blog-123421632.pc_relevant_recovery_v2&spm=1001.2101.3001.4242.2&utm_relevant_index=4
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* @param prop 每列的prop 不能为空
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* @param tableData 表格数据
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* @param title 标题长内容短的，传标题 不能为空
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* @param num 列中有标签等加的富余量
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* @returns 列的宽度
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* 注：prop,title有一个必传
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*/
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export function flexWidth(prop, tableData, title, num = 0) {
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let flexWidth = 0// 初始化表格列宽
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let columnContent = ''// 占位最宽的内容
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const canvas = document.createElement('canvas')
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const context = canvas.getContext('2d')
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context.font = '14px Microsoft YaHei'
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if (tableData.length === 0) { // 表格没数据不做处理
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return context.measureText(title).width + 20 + num + 'px'
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}
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// 获取占位最宽的内容
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let index = 0
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for (let i = 0; i < tableData.length; i++) { // 循环表格内容，获取表格内容中最长的数据
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const now_temp = tableData[i][prop] + ''
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const max_temp = tableData[index][prop] + ''
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const now_temp_w = context.measureText(now_temp).width
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const max_temp_w = context.measureText(max_temp).width
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if (now_temp_w > max_temp_w) {
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index = i
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}
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}
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columnContent = tableData[index][prop]
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const column_w = context.measureText(columnContent).width
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const title_w = context.measureText(title).width
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if (column_w < title_w) {
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columnContent = title || '留四个字'
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}
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// 计算最宽内容的列宽
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const width = context.measureText(columnContent)
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flexWidth = width.width + 20 + num
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return flexWidth + 'px'
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}
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