export default class Utils {
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/**
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* @description 生成32位uuid string + 时间
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* @return {String} uuid
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*/
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static getuuid () {
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let uuid = []
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let timestamp = new Date().getTime()
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let options = '0123456789abcdefghigklmnopqrstuv'
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for (let i = 0; i < 19; i++) {
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uuid.push(options.substr(Math.floor(Math.random() * 0x20), 1))
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}
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uuid = uuid.join('') + timestamp
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return uuid
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}
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/**
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* @description 生成GUID
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* @return {String} guid
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*/
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static getguid () {
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// 产生一个新的GUID值
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let uuid = 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, (c) => {
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let r = Math.random() * 16 | 0
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// eslint-disable-next-line
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let v = (c === 'x') ? r : (r & 0x3 | 0x8)
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return v.toString(16)
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})
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return uuid
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}
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/**
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* @description 拼接搜索条件
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* @param {Array} searches 搜索条件
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* @return {String} searchText 拼接结果
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* ---过滤条件（未使用）---
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* greaterorequal: ' >= '
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* lessorequal: ' <= '
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* like: ' LIKE '
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* less: ' < '
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* greater: ' > '
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* equal: ' = '
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* notlike: ' notlike '
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* in: ' in '
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* notin: ' notin '
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* leftlike/startwith
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* rightlike/endwith
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* rightnotlike/endnotwith
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* leftnotlike/startnotwith
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*/
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static jointsearchkey (searches) {
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if (!searches || searches.length === 0) return ''
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let searchText = ''
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searches.forEach(item => {
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if (!item.value) return
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// eslint-disable-next-line
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searchText += (searchText !== '' ? ' ' + 'AND' + ' ' : '')
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if (item.type === 'text') {
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let options = item.key.split(',').map(op => {
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// equal时不添加%
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// eslint-disable-next-line
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let str = item.op === 'equal' ? '' : '%'
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// eslint-disable-next-line
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return op + ' ' + item.op + ' ' + '"' + str + item.value + str + '"'
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})
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// eslint-disable-next-line
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searchText += '(' + options.join(' ' + 'OR' + ' ') + ')'
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} else if (item.type === 'date') {
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// eslint-disable-next-line
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searchText += '(' + item.key + ' ' + item.op + ' ' + '"' + item.value + '")'
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} else {
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// eslint-disable-next-line
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searchText += '(' + item.key + ' ' + item.op + ' ' + '"' + item.value + '")'
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}
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})
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return searchText
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}
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}
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