/** * 通用js方法封装处理 * Copyright (c) 2019 newfiber */ /** * 遍历字典 * @param {String, Number} dic - 目标哦字典 * @param {String} targetField - 需要和树结构里哪个字段比较 * @param {Array} value - 根据此值去树结构里遍历 */ export const findDictObj = (value, targetField, dic) => { for (let i = 0; i < dic.length; i++) { if (dic[i][targetField] == value) { return dic[i]; } } return {}; }; /** * 遍历树结构 * @param {String, Number} value - 根据此值去树结构里遍历 * @param {String} targetField - 需要和树结构里哪个字段比较 * @param {Array} arr - 目标树结构 */ export function findTreeItem(value, targetField, arr) { for (let i = 0; i < arr.length; i++) { let item = arr[i]; if (item[targetField] === value) { return item; } else { if (item.children && item.children.length > 0) { let res = findTreeItem(value, targetField, item.children); if (res) { return res; } } } } } // 日期格式化 export function parseTime(time, pattern) { if (arguments.length === 0 || !time) { return null; } const format = pattern || "{y}-{m}-{d} {h}:{i}:{s}"; let date; if (typeof time === "object") { date = time; } else { if (typeof time === "string" && /^[0-9]+$/.test(time)) { time = parseInt(time); } else if (typeof time === "string") { time = time .replace(new RegExp(/-/gm), "/") .replace("T", " ") .replace(new RegExp(/\.[\d]{3}/gm), ""); } if (typeof time === "number" && time.toString().length === 10) { time = time * 1000; } date = new Date(time); } const formatObj = { y: date.getFullYear(), m: date.getMonth() + 1, d: date.getDate(), h: date.getHours(), i: date.getMinutes(), s: date.getSeconds(), a: date.getDay(), }; const time_str = format.replace(/{(y|m|d|h|i|s|a)+}/g, (result, key) => { let value = formatObj[key]; // Note: getDay() returns 0 on Sunday if (key === "a") { return ["日", "一", "二", "三", "四", "五", "六"][value]; } if (result.length > 0 && value < 10) { value = "0" + value; } return value || 0; }); return time_str; } // 表单重置 export function resetForm(refName) { if (this.$refs[refName]) { this.$refs[refName].resetFields(); } } // 添加日期范围 export function addDateRange(params, dateRange, propName) { let search = params; search.params = typeof search.params === "object" && search.params !== null && !Array.isArray(search.params) ? search.params : {}; dateRange = Array.isArray(dateRange) ? dateRange : []; if (typeof propName === "undefined") { search.params["beginTime"] = dateRange[0]; search.params["endTime"] = dateRange[1]; } else { search.params["begin" + propName] = dateRange[0]; search.params["end" + propName] = dateRange[1]; } return search; } // 回显数据字典 export function selectDictLabel(datas, value) { if (value === undefined) { return ""; } var actions = []; Object.keys(datas).some((key) => { if (datas[key].value == "" + value) { actions.push(datas[key].label); return true; } }); if (actions.length === 0) { actions.push(value); } return actions.join(""); } // 回显数据字典(字符串数组) export function selectDictLabels(datas, value, separator) { if (value === undefined || value.length === 0) { return ""; } if (Array.isArray(value)) { value = value.join(","); } var actions = []; var currentSeparator = undefined === separator ? "," : separator; var temp = value.split(currentSeparator); Object.keys(value.split(currentSeparator)).some((val) => { var match = false; Object.keys(datas).some((key) => { if (datas[key].value == "" + temp[val]) { actions.push(datas[key].label + currentSeparator); match = true; } }); if (!match) { actions.push(temp[val] + currentSeparator); } }); return actions.join("").substring(0, actions.join("").length - 1); } // 字符串格式化(%s ) export function sprintf(str) { var args = arguments, flag = true, i = 1; str = str.replace(/%s/g, function () { var arg = args[i++]; if (typeof arg === "undefined") { flag = false; return ""; } return arg; }); return flag ? str : ""; } // 转换字符串,undefined,null等转化为"" export function parseStrEmpty(str) { if (!str || str == "undefined" || str == "null") { return ""; } return str; } // 数据合并 export function mergeRecursive(source, target) { for (var p in target) { try { if (target[p].constructor == Object) { source[p] = mergeRecursive(source[p], target[p]); } else { source[p] = target[p]; } } catch (e) { source[p] = target[p]; } } return source; } /** * 构造树型结构数据 * @param {*} data 数据源 * @param {*} id id字段 默认 'id' * @param {*} parentId 父节点字段 默认 'parentId' * @param {*} children 孩子节点字段 默认 'children' */ export function handleTree(data, id, parentId, children) { let config = { id: id || "id", parentId: parentId || "parentId", childrenList: children || "children", }; var childrenListMap = {}; var nodeIds = {}; var tree = []; for (let d of data) { let parentId = d[config.parentId]; if (childrenListMap[parentId] == null) { childrenListMap[parentId] = []; } nodeIds[d[config.id]] = d; childrenListMap[parentId].push(d); } for (let d of data) { let parentId = d[config.parentId]; if (nodeIds[parentId] == null) { tree.push(d); } } for (let t of tree) { adaptToChildrenList(t); } function adaptToChildrenList(o) { if (childrenListMap[o[config.id]] !== null) { o[config.childrenList] = childrenListMap[o[config.id]]; } if (o[config.childrenList]) { for (let c of o[config.childrenList]) { adaptToChildrenList(c); } } } return tree; } /** * 参数处理 * @param {*} params 参数 */ export function tansParams(params) { let result = ""; for (const propName of Object.keys(params)) { const value = params[propName]; var part = encodeURIComponent(propName) + "="; if (value !== null && value !== "" && typeof value !== "undefined") { if (typeof value === "object") { for (const key of Object.keys(value)) { if ( value[key] !== null && value[key] !== "" && typeof value[key] !== "undefined" ) { let params = propName + "[" + key + "]"; var subPart = encodeURIComponent(params) + "="; result += subPart + encodeURIComponent(value[key]) + "&"; } } } else { result += part + encodeURIComponent(value) + "&"; } } } return result; } // 返回项目路径 export function getNormalPath(p) { if (p.length === 0 || !p || p == "undefined") { return p; } let res = p.replace("//", "/"); if (res[res.length - 1] === "/") { return res.slice(0, res.length - 1); } return res; } // 验证是否为blob格式 export async function blobValidate(data) { try { const text = await data.text(); JSON.parse(text); return false; } catch (error) { return true; } } //空间数据转换,type: 1 2 3 4 5分别代表点击的是点、线、面,返回坐标格式里的wkt export function getCellwkt(coords, type) { console.log("coords", coords); console.log("type", type); var wktAll = ""; var wkt = ""; for (var m = 0; m < coords.length; m++) { var coord = coords[m]; if (type == 5 || type == 4) { var result = ""; for (var i = 0; i < coord.length; i++) { if (i % 2 == 0) { result += coord[i] + " "; } else { result += coord[i] + ","; } } result = result.slice(0, result.length - 1); wkt = "((" + result + "))"; wktAll += wkt + ","; } else if (type == 3 || type == 2) { var result = ""; for (var i = 0; i < coord.length; i++) { if (i % 2 == 0) { result += coord[i] + " "; } else { result += coord[i] + ","; } } result = result.slice(0, result.length - 1); wkt = "(" + result + ")"; wktAll += wkt + ","; } else { wkt = coord[0] + " " + coord[1]; wktAll += wkt + ","; } } wktAll = wktAll.slice(0, wktAll.length - 1); //处理头 if (type == 5 || type == 4) { wktAll = `multipolygon(${wktAll})`; } else if (type == 3 || type == 2) { wktAll = `MultiLineString(${wktAll})`; } else { wktAll = "POINT(" + wktAll + ")"; } return wktAll; } //计算取值 export const getDivisionResult = (a, b) => { if (!Number(a) || !Number(b)) { return "--"; } return `${parseInt(a / b)}%`; }; //guid export const guid = () => { const s4 = () => Math.floor((1 + Math.random()) * 0x10000) .toString(16) .substring(1); return (() => `${s4() + s4()}-${s4()}-${s4()}-${s4()}-${s4()}${s4()}${s4()}`)(); };