meteor__coursera-meteor-1/client/website_item.js

/**
 * Client code for the website_item template.
 */

/**
 * Template events
 */

Template.website_item.events({
  "click .js-upvote": function () {
    // Example of how you can access the id for the website in the database
    // (this is the data context for the template)
    const websiteId = this._id;
    console.log("Up voting website with id " + websiteId);
    // Put the code in here to add a vote to a website!
    const userId = Meteor.userId();
    const modifiers = {
      $addToSet: {
        plus: userId
      },
      $pull: {
        minus: userId
      }
    };
    Websites.update({ _id: websiteId }, modifiers);

    // Prevent the button from reloading the page.
    return false;
  },

  "click .js-downvote": function () {
    // example of how you can access the id for the website in the database
    // (this is the data context for the template)
    const websiteId = this._id;
    console.log("Down voting website with id " + websiteId);

    // Put the code in here to remove a vote from a website!
    const userId = Meteor.userId();
    const modifiers = {
      $addToSet: {
        minus: userId
      },
      $pull: {
        plus: userId
      }
    };
    Websites.update({ _id: websiteId }, modifiers);

    // Prevent the button from reloading the page
    return false;
  }
});

Template.website_item.helpers({
  upVoted: function () {
    return _.contains(this.plus, Meteor.userId()) ? "btn-success" : "";
  },

  downVoted: function () {
    return _.contains(this.minus, Meteor.userId()) ? "btn-danger" : "";
  }
});