weapp_bbs/components/attentionBtn/attentionBtn.js

const net = require("../../utils/net.js");
const {
  api_user_attention,
  api_topic_attention,
} = require("../../utils/api.js");
Component({
  /**
   * 组件的属性列表
   */
  properties: {
    isAttention: {
      type: Boolean,
      value: false,
      observer: function (newVal, oldVal) {
        // 属性值变化时执行
        this.setData({
          isLike: newVal,
        });
      },
    },
    type: {
      type: Number,
      value: 1, // 1 是用户,2 是话题
    },
    attentionId: {
      type: Number,
      value: 0,
    },
    index: {
      type: Number,
      value: 0,
    },
  },

  /**
   * 组件的初始数据
   */
  data: {
    isLike: false,
  },

  /**
   * 组件的方法列表
   */
  methods: {
    tapAttentionAction(e) {
      const { type, attentionId, index } = this.properties;
      const userInfo = wx.getStorageSync("USERINFO");
      if (userInfo) {
        let params = {};
        if (parseInt(type) == 1) {
          params.url = api_user_attention;
          params.data = {
            targetUserId: attentionId,
          };
        } else {
          params.url = api_topic_attention;
          params.data = {
            id: attentionId,
          };
        }
        net.req(params, true).then(
          (data) => {
            const { isAttention, attentionNum } = data;
            this.setData({
              isLike: !!isAttention,
            });
            this.triggerEvent("attention", {
              index: index,
              isAttention: isAttention,
              attentionNum: attentionNum,
            });
          },
          (e) => {
            wx.showToast({
              title: e.msg,
            });
          }
        );
      } else {
        wx.navigateTo({ url: `/pages/login/login` });
      }
    },
  },
});