fitness-coach/miniprogram/pages/collection-detail/collection-detail.js

const app = getApp();
const planSvc = require('../../services/plan');
const favSvc = require('../../services/favorite');
const auth = require('../../utils/auth');

Page({
  data: {
    statusBarHeight: 20,
    slug: '',
    collection: null,
    exercises: [],
    total: 0,
    loading: true,
    favorited: false
  },

  onLoad(query) {
    const slug = query.slug || '';
    this.setData({ statusBarHeight: app.globalData.statusBarHeight || 20, slug });
    this.load();
    if (auth.isLogin()) {
      favSvc.planStatus(slug).then((r) => {
        this.setData({ favorited: !!(r && r.favorited) });
      }).catch(() => {});
    }
  },

  load() {
    this.setData({ loading: true });
    planSvc.officialExercises(this.data.slug, 1, 60).then((res) => {
      this.setData({
        collection: res.collection,
        exercises: (res && res.items) || [],
        total: (res && res.total) || 0,
        loading: false
      });
    }).catch(() => {
      this.setData({ loading: false });
    });
  },

  // 收藏 / 取消收藏官方计划
  onToggleFav() {
    auth.ensureLogin().then(() => {
      const slug = this.data.slug;
      const wasFav = this.data.favorited;
      const op = wasFav ? favSvc.removePlan(slug) : favSvc.addPlan(slug);
      op.then(() => {
        this.setData({ favorited: !wasFav });
        wx.showToast({ title: wasFav ? '已取消收藏' : '已收藏', icon: 'none' });
      }).catch(() => {});
    }).catch(() => {});
  },

  // 导入到我的计划
  onImport() {
    auth.ensureLogin().then(() => {
      wx.showLoading({ title: '导入中…', mask: true });
      planSvc.importOfficial(this.data.slug).then(() => {
        wx.hideLoading();
        wx.showToast({ title: '已导入到我的计划', icon: 'success' });
        setTimeout(() => {
          wx.navigateTo({ url: '/pages/my-plans/my-plans' });
        }, 600);
      }).catch(() => {
        wx.hideLoading();
      });
    }).catch(() => {});
  },

  onExercise(e) {
    wx.navigateTo({
      url: '/pages/detail/detail?from=collection&slug=' +
        encodeURIComponent(this.data.slug) + '&id=' + encodeURIComponent(e.detail.id)
    });
  }
});