linkmore-design/es/lm-table/expression.js

🌈 🚀lm组件库。🚀

import _slicedToArray from "@babel/runtime/helpers/esm/slicedToArray";
function getSum(item, dataIndex) {
  var sum = 0;
  item.children.forEach(function (subItem) {
    var value;
    if (/\%/.test("".concat(subItem[dataIndex]))) {
      value = Number(subItem["".concat(dataIndex, "_sum")]);
    } else {
      value = Number(subItem[dataIndex]);
    }
    if (Number.isNaN(value)) {
      return;
    }
    sum += value;
  });
  return sum;
}

// 分组求和计算
export default function calc(item, needCalcKeys, history) {
  var _item$children;
  if (item !== null && item !== void 0 && (_item$children = item.children) !== null && _item$children !== void 0 && _item$children.length) {
    needCalcKeys.forEach(function (dkey) {
      if (!item.children || !item.children.length) {
        return;
      }
      var _dkey = _slicedToArray(dkey, 2),
        dataIndex = _dkey[0],
        expression = _dkey[1];
      item["".concat(dataIndex, "_exp")] = expression;
      if (expression === 'sum') {
        var sum = getSum(item, dataIndex);
        item[dataIndex] = Number(sum).toFixed(2);
      } else if (expression === 'average') {
        var _sum = getSum(item, dataIndex);
        item[dataIndex] = (_sum / item.children.length).toFixed(2);
      } else if (expression === 'max') {
        var max = -Number.MAX_VALUE;
        item.children.forEach(function (subItem) {
          var value = Number(subItem[dataIndex]);
          if (Number.isNaN(value)) {
            return;
          }
          if (value > max) {
            max = value;
          }
        });
        if (max === -Number.MAX_VALUE) {
          max = 0;
        }
        item[dataIndex] = max;
      } else if (expression === 'min') {
        var min = Number.MAX_VALUE;
        item.children.forEach(function (subItem) {
          var value = Number(subItem[dataIndex]);
          if (Number.isNaN(value)) {
            return;
          }
          if (value < min) {
            min = value;
          }
        });
        if (min === Number.MAX_VALUE) {
          min = 0;
        }
        item[dataIndex] = min;
      } else if (expression === 'percent') {
        var _sum2 = getSum(item, dataIndex);
        history.push({
          item: item,
          dataIndex: dataIndex,
          sum: _sum2
        });
      }
    });
  }
}
export var reset = function reset(arr, dataIndex) {
  arr === null || arr === void 0 ? void 0 : arr.forEach(function (item) {
    if (item !== null && item !== void 0 && item.children) {
      reset(item === null || item === void 0 ? void 0 : item.children, dataIndex);
    }
    if (item.children) {
      delete item[dataIndex];
      delete item["".concat(dataIndex, "_exp")];
    }
  });
};