proginn-frontend/components/learn/dealSeoDetail.js

export default class DealSeoData {
    constructor({$axios, req, app, redirect, error}) {
        this.$axios = $axios
        this.req = req
        this.app = app
        this.redirect = redirect
        this.error = error
        this.learnDetail = {}
        this.isExist = true
    }

    async dealData() {
      let {
          name,
          query: { act },
          path,
          params,
          fullPath
      } = this.app.context.route
      const sale_id = params.id || ''
      // 重定向
      if (path.indexOf('/frontend/learn/detail') > -1) {
          this.redirect(301, '/l/' + sale_id)
      }

      const learnDetail = await this._getLearnDetail(sale_id)
      const collectObj = await this._getLearnDetailCollected(sale_id)
        return {
          isExist: this.isExist,
          sale_id,
          learnDetail,
          collectObj,
          mobile: this.app.$deviceType.isMobile(),
          head: this.dealThisMeta(),
          act
        }
    }

    /** 获取课程详情 */
    async _getLearnDetail (sale_id="999") {
      let res = await this.$axios.$post('/sapi/learn/info', { sale_id })
      let learnDetail = {}
      // console.log(res)
      if (Number(res.status) === 1) {
          learnDetail = res.data
      } else if (Number(res.status) === 40001) {
          this.isExist = false
      }
      this.learnDetail=learnDetail;
      return learnDetail
    }

    async _getLearnDetailCollected(sale_id){
      let params = {
        type: '100',
        item_id: sale_id+''
      }
      let collectObj = {}
      let res = await this.$axios.$post('/uapi/collection/check', params)
      if(res.status==1){
        collectObj = res.data
      }
      return collectObj
    }

    dealThisMeta() {
        if (!this.isExist) {
            // 页面不存在时
            return {
                title: "页面不存在-程序员客栈",
                keyword: "",
                description: "",
                h1: "",
                canonical: "",
                metaLocation: ""
            }
        }

        let head = {
            title: `客栈学院`,
            keyword: `客栈学院`,
            description: `客栈学院`,
            h1: "",
            canonical: "",
            metaLocation: ""
        }
        head.title = `${this.learnDetail.seo.title}`
        head.keyword = `${this.learnDetail.seo.keywords}`;
        head.description = `${this.learnDetail.seo.description}`;
        return head
    }
}