Vulcan/packages/example-forum/lib/modules/voting/custom_fields.js

import Posts from '../posts/index.js';
import Comments from '../comments/index.js';

Posts.addField([
  /**
    How many upvotes the post has received
  */
  {
    fieldName: 'upvotes',
    fieldSchema: {
      type: Number,
      optional: true,
      defaultValue: 0,
      viewableBy: ['guests'],
    }
  },
  /**
    An array containing the `_id`s of the post's upvoters
  */
  {
    fieldName: 'upvoters',
    fieldSchema: {
      type: Array,
      optional: true,
      viewableBy: ['guests'],
      resolveAs: {
        fieldName: 'upvoters',
        type: '[User]',
        resolver: async (post, args, {currentUser, Users}) => {
          if (!post.upvoters) return [];
          const upvoters = await Users.loader.loadMany(post.upvoters);
          return Users.restrictViewableFields(currentUser, Users, upvoters);
        },
      },
    }
  },
  {
    fieldName: 'upvoters.$',
    fieldSchema: {
      type: String,
      optional: true
    }
  },
  /**
    How many downvotes the post has received
  */
  {
    fieldName: 'downvotes',
    fieldSchema: {
      type: Number,
      optional: true,
      defaultValue: 0,
      viewableBy: ['guests'],
    }
  },
  /**
    An array containing the `_id`s of the post's downvoters
  */
  {
    fieldName: 'downvoters',
    fieldSchema: {
      type: Array,
      optional: true,
      viewableBy: ['guests'],
      resolveAs: {
        fieldName: 'downvoters',
        type: '[User]',
        resolver: async (post, args, {currentUser, Users}) => {
          if (!post.downvoters) return [];
          const downvoters = await Users.loader.loadMany(post.downvoters);
          return Users.restrictViewableFields(currentUser, Users, downvoters);
        },
      },
    }
  },
  {
    fieldName: 'downvoters.$',
    fieldSchema: {
      type: String,
      optional: true,
    }
  },
  /**
    The post's base score (not factoring in the post's age)
  */
  {
    fieldName: 'baseScore',
    fieldSchema: {
      type: Number,
      optional: true,
      defaultValue: 0,
      viewableBy: ['guests'],
    }
  },
  /**
    The post's current score (factoring in age)
  */
  {
    fieldName: 'score',
    fieldSchema: {
      type: Number,
      optional: true,
      defaultValue: 0,
      viewableBy: ['guests'],
    }
  },
]);

Comments.addField([
  /**
    The number of upvotes the comment has received
  */
  {
    fieldName: 'upvotes',
    fieldSchema: {
      type: Number,
      optional: true,
      defaultValue: 0,
      viewableBy: ['guests'],
    }
  },
  /**
    An array containing the `_id`s of upvoters
  */
  {
    fieldName: 'upvoters',
    fieldSchema: {
      type: Array,
      optional: true,
      viewableBy: ['guests'],
      resolveAs: {
        fieldName: 'upvoters',
        type: '[User]',
        resolver: async (comment, args, {currentUser, Users}) => {
          if (!comment.upvoters) return [];
          const upvoters = await Users.loader.loadMany(comment.upvoters);
          return Users.restrictViewableFields(currentUser, Users, upvoters);
        },
      },
    }
  },
  {
    fieldName: 'upvoters.$',
    fieldSchema: {
      type: String,
      optional: true
    }
  },
  /**
    The number of downvotes the comment has received
  */
  {
    fieldName: 'downvotes',
    fieldSchema: {
      type: Number,
      optional: true,
      defaultValue: 0,
      viewableBy: ['guests'],
    }
  },
  /**
    An array containing the `_id`s of downvoters
  */
  {
    fieldName: 'downvoters',
    fieldSchema: {
      type: Array,
      optional: true,
      viewableBy: ['guests'],
      resolveAs: {
        fieldName:'downvoters',
        type: '[User]',
        resolver: async (comment, args, {currentUser, Users}) => {
          if (!comment.downvoters) return [];
          const downvoters = await Users.loader.loadMany(comment.downvoters);
          return Users.restrictViewableFields(currentUser, Users, downvoters);
        },
      },
    }
  },
  {
    fieldName: 'downvoters.$',
    fieldSchema: {
      type: String,
      optional: true,
    }
  },
  /**
    The comment's base score (not factoring in the comment's age)
  */
  {
    fieldName: 'baseScore',
    fieldSchema: {
      type: Number,
      optional: true,
      defaultValue: 0,
      viewableBy: ['guests'],
    }
  },
  /**
    The comment's current score (factoring in age)
  */
  {
    fieldName: 'score',
    fieldSchema: {
      type: Number,
      optional: true,
      defaultValue: 0,
      viewableBy: ['guests'],
    }
  },
]);