79 lines
1.9 KiB
JavaScript
79 lines
1.9 KiB
JavaScript
const {
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findIssueByPageDao,
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findIssueByIdDao,
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addIssueDao,
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deleteIssueDao,
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updateIssueDao,
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searchIssueByPageDao
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} = require("../dao/issueDao");
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const {
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findIssueCommentByIdDao,
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deleteCommentDao,
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} = require("../dao/commentDao");
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const { validate } = require("validate.js");
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const { issueRule } = require("./rules");
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const { ValidationError } = require("../utils/errors");
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/**
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* 按分页查询问答
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*/
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module.exports.findIssueByPageService = async function (queryObj) {
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return await findIssueByPageDao(queryObj);
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};
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/**
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* 根据 id 获取其中一个问答信息
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*/
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module.exports.findIssueByIdService = async function (id) {
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return await findIssueByIdDao(id);
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};
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/**
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* 新增问答
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*/
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module.exports.addIssueService = async function (newIssueInfo) {
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// 首先进行同步的数据验证
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const validateResult = validate.validate(newIssueInfo, issueRule);
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if (!validateResult) {
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// 验证通过
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// 添加其他信息
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newIssueInfo.scanNumber = 0; // 浏览数，默认为 0
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newIssueInfo.commentNumber = 0; // 评论数，默认为 0
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// 上架日期
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newIssueInfo.issueDate = new Date().getTime().toString();
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// 添加状态，默认是未过审状态
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newIssueInfo.issueStatus = false;
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return await addIssueDao(newIssueInfo);
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} else {
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// 数据验证失败
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return new ValidationError("数据验证失败");
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}
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};
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/**
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* 删除某一个问答
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*/
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module.exports.deleteIssueService = async function (id) {
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// 首先需要删除该问答对应的评论
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// 获取该 issueId 对应的所有评论
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const commentResult = await findIssueCommentByIdDao(id);
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for (let i = 0; i < commentResult.length; i++) {
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await deleteCommentDao(commentResult[i]._id);
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}
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// 接下来再删除该问答
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return await deleteIssueDao(id);
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};
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/**
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* 修改某一个问答
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*/
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module.exports.updateIssueService = async function (id, newInfo) {
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return await updateIssueDao(id, newInfo);
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};
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