AgileBoot-Front-End-Basic/src/utils/common.js

import store from '@/store';
import defaultSettings from '@/config/defaultSettings';
/**
 * 通用js方法封装处理
 * Copyright (c) 2019 ruoyi
 */

/**
 * 动态修改标题
 */
export function useDynamicTitle() {
  if (store.state.settings.dynamicTitle) {
    document.title = `${store.state.settings.title} - ${defaultSettings.title}`;
  } else {
    document.title = defaultSettings.title;
  }
}

/**
 * @param {Array} actual
 * @returns {Array}
 */
export function trimArray(actual) {
  const newArray = [];
  for (let i = 0; i < actual.length; i++) {
    if (actual[i]) {
      newArray.push(actual[i]);
    }
  }
  return newArray;
}

/**
 * @param {Array} arr
 * @returns {Array}
 */
export function arrayToSet(arr) {
  return Array.from(new Set(arr));
}

// 表单重置
export function resetForm(refName) {
  if (this.$refs[refName]) {
    this.$refs[refName].resetFields();
  }
}

// 添加时间查询参数
export function addTimeRange(params, dateRange) {
  if (dateRange != null) {
    const [beginTime, endTime] = dateRange;
    params.beginTime = beginTime;
    params.endTime = endTime;
  } else {
    params.beginTime = null;
    params.endTime = null;
  }
  return params;
}

// 转换字符串，undefined,null等转化为""
export function parseStrEmpty(str) {
  if (!str || str === 'undefined' || str === 'null' || str === null) {
    return '';
  }
  return str;
}

// 数据合并
export function mergeRecursive(source, target) {
  for (const 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;
}

/**
 * Merges two objects, giving the last one precedence
 * @param {Object} target
 * @param {(Object|Array)} source
 * @returns {Object}
 */
export function objectMerge(target, source) {
  if (typeof target !== 'object') {
    target = {};
  }
  if (Array.isArray(source)) {
    return source.slice();
  }
  Object.keys(source).forEach((property) => {
    const sourceProperty = source[property];
    if (typeof sourceProperty === 'object') {
      target[property] = objectMerge(target[property], sourceProperty);
    } else {
      target[property] = sourceProperty;
    }
  });
  return target;
}

/**
 * This is just a simple version of deep copy
 * Has a lot of edge cases bug
 * If you want to use a perfect deep copy, use lodash's _.cloneDeep
 * @param {Object} source
 * @returns {Object}
 */
export function deepClone(source) {
  if (!source && typeof source !== 'object') {
    throw new Error('error arguments', 'deepClone');
  }
  const targetObj = source.constructor === Array ? [] : {};
  Object.keys(source).forEach((keys) => {
    if (source[keys] && typeof source[keys] === 'object') {
      targetObj[keys] = deepClone(source[keys]);
    } else {
      targetObj[keys] = source[keys];
    }
  });
  return targetObj;
}

/**
 * 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) {
  const config = {
    id: id || 'id',
    parentId: parentId || 'parentId',
    childrenList: children || 'children',
  };

  const childrenListMap = {};
  const nodeIds = {};
  const tree = [];

  for (const d of data) {
    const parentId = d[config.parentId];
    if (childrenListMap[parentId] == null) {
      childrenListMap[parentId] = [];
    }
    nodeIds[d[config.id]] = d;
    childrenListMap[parentId].push(d);
  }

  for (const d of data) {
    const parentId = d[config.parentId];
    if (nodeIds[parentId] == null) {
      tree.push(d);
    }
  }

  for (const 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 (const c of o[config.childrenList]) {
        adaptToChildrenList(c);
      }
    }
  }
  return tree;
}

// 返回项目路径
export function getNormalPath(p) {
  if (p.length === 0 || !p || p === undefined) {
    return p;
  }
  const 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 isBlobData(data) {
  try {
    const text = await data.text();
    JSON.parse(text);
    return false;
  } catch (error) {
    return true;
  }
}