gassafety.js

/**
 * 通用js方法封装处理
 * Copyright (c) 2021 gassafety
 */

const baseURL = process.env.VUE_APP_BASE_API;

// 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), "/");
    }
    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) {
  var search = params;
  search.params = {};
  if (null != 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) {
  var actions = [];
  Object.keys(datas).some(key => {
    if (datas[key].dictValue == "" + value) {
      actions.push(datas[key].dictLabel);
      return true;
    }
  });
  return actions.join("");
}

// 回显数据字典（字符串数组）
export function selectDictLabels(datas, value, separator) {
  var actions = [];
  var currentSeparator = undefined === separator ? "," : separator;
  var temp = value.split(currentSeparator);
  Object.keys(value.split(currentSeparator)).some(val => {
    Object.keys(datas).some(key => {
      if (datas[key].dictValue == "" + temp[val]) {
        actions.push(datas[key].dictLabel + currentSeparator);
      }
    });
  });
  return actions.join("").substring(0, actions.join("").length - 1);
}

// 通用下载方法
export function download(fileName) {
  window.location.href =
    baseURL +
    "/common/download?fileName=" +
    encodeURI(fileName) +
    "&delete=" +
    true;
}

// 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 praseStrEmpty(str) {
  if (!str || str == "undefined" || str == "null") {
    return "";
  }
  return str;
}

/**
 * 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;
}
// 二维数组转字符串
export const getString = objarr => {
  const typeNO = objarr.length;
  let tree = "[";
  for (var i = 0; i < typeNO; i++) {
    tree += "[";
    tree += "'" + objarr[i][0] + "',";
    tree += "'" + objarr[i][1] + "'";
    tree += "]";
    if (i < typeNO - 1) {
      tree += ",";
    }
  }
  tree += "]";
  return tree;
};

// 二维数组字符串转回数组
export const getArray = str => {
  let newArr = str.slice(1, str.length - 1);
  newArr = newArr.split("],")
  return newArr.map((item, index, own) => {
    let str = "",
      arr = [];
    str = item.replace(/\[/g, "");
    str = str.replace(/]/g, "");
    arr = str.split(",");
    arr = arr.map(item => {
      return Number(item);
    });
    return arr;
  });
  
};