blob: 5b0a56f35662b6cf412c1fa80720e514e9657769 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
|
'use strict';
/**
* Module dependencies
*/
import it from '../../it';
import Post from '../../models/post';
import serialize from '../../serializers/post';
/**
* Show a context of a post
*
* @param {any} params
* @param {any} user
* @return {Promise<any>}
*/
module.exports = (params, user) =>
new Promise(async (res, rej) =>
{
// Get 'post_id' parameter
const [postId, postIdErr] = it(params.post_id, 'id', true);
if (postIdErr) return rej('invalid post_id param');
// Get 'limit' parameter
const [limit, limitErr] = it(params.limit).expect.number().range(1, 100).default(10).qed();
if (limitErr) return rej('invalid limit param');
// Get 'offset' parameter
const [offset, offsetErr] = it(params.offset).expect.number().min(0).default(0).qed();
if (offsetErr) return rej('invalid offset param');
// Lookup post
const post = await Post.findOne({
_id: postId
});
if (post === null) {
return rej('post not found');
}
const context = [];
let i = 0;
async function get(id) {
i++;
const p = await Post.findOne({ _id: id });
if (i > offset) {
context.push(p);
}
if (context.length == limit) {
return;
}
if (p.reply_to_id) {
await get(p.reply_to_id);
}
}
if (post.reply_to_id) {
await get(post.reply_to_id);
}
// Serialize
res(await Promise.all(context.map(async post =>
await serialize(post, user))));
});
|
