parameter.js
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/**
* 静态化路由参数处理
* @author: yyq<yanqing.yang@yoho.cn>
* @date: 2017/11/24
*/
'use strict';
const _ = require('lodash');
// const logger = global.yoho.logger;
const queryString = require('querystring');
const minToFullMap = {
ag: 'age_level',
bd: 'brand',
cc: 'coupon_code',
cd: 'coupon_id',
ci: 'category_id',
cl: 'color',
cn: 'channel',
fp: 'filter_poolId',
gd: 'gender',
ld: 'limited',
lt: 'limit',
mi: 'misort',
ms: 'msort',
nw: 'new',
od: 'order',
ol: 'outlets',
pc: 'price',
pd: 'p_d',
pg: 'page',
pm: 'promotion',
pp: 'productPool',
qr: 'query',
sd: 'standard',
se: 'shelveTime',
sf: 'specialoffer',
sh: 'shop_id',
si: 'specialsale_id',
sn: 'sort_name',
so: 'sort',
sp: 'saleType',
st: 'style',
sz: 'size',
tp: 'type'
};
const fullToMinMap = _.transform(minToFullMap, (result, value, key) => {
result[value] = key;
}, {});
const transformKey = (params, isFull) => {
if (_.isEmpty(params)) {
return params;
}
let matchParams = {},
extraParams = {};
let map = isFull ? fullToMinMap : minToFullMap;
_.forEach(params, (value, key) => {
let name = map[key];
if (name) {
matchParams[name] = value;
} else {
extraParams[key] = value;
// logger.info(`list parameter [${key}] map value not found`);
}
});
return {
matchParams,
extraParams
};
};
const minPathToFullParam = (path) => {
let obj = {};
_.forEach(_.split(path, '-'), splitValue => {
if (!splitValue) {
return;
}
let minKey = splitValue.substr(0, 2);
let fullKey = minToFullMap[minKey];
if (fullKey) {
obj[fullKey] = _.replace(_.replace(splitValue, minKey, ''), '__', '-'); // 替换value中__
}
});
return obj;
};
/**
* 筛选参数
* @param originParam 当前 URL 中的参数
* @param newParam 要拼接的 参数
* @returns {string}
*/
const fullParamToMinPath = (uri, params, newObj, delObj = {}) => {
let obj = _.assign({}, params, newObj);
let pathArr = [];
let extraQs = '';
Object.assign(delObj, {uid: true});
_.forEach(delObj, (value, key) => {
_.has(obj, key) && _.unset(obj, key);
});
let transParams = transformKey(obj, true);
_.forEach(transParams.matchParams, (value, key) => {
if (value) {
pathArr.push(`${key}${_.replace(value, '-', '__')}`); // 替换value中-
}
});
if (!_.isEmpty(transParams.extraParams)) {
extraQs = '?' + queryString.stringify(transParams.extraParams);
}
return _.trimEnd(uri, '/') + '/' + _.sortBy(pathArr).join('-') + extraQs;
};
module.exports = {
transformKey,
fullParamToMinPath,
minPathToFullParam
};