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b49f22d8 | 1 | import { col, fn, QueryTypes, Transaction } from 'sequelize' |
3fd3ab2d | 2 | import { AllowNull, BelongsToMany, Column, CreatedAt, Is, Model, Table, UpdatedAt } from 'sequelize-typescript' |
b49f22d8 C |
3 | import { MTag } from '@server/types/models' |
4 | import { VideoPrivacy, VideoState } from '../../../shared/models/videos' | |
3fd3ab2d C |
5 | import { isVideoTagValid } from '../../helpers/custom-validators/videos' |
6 | import { throwIfNotValid } from '../utils' | |
7 | import { VideoModel } from './video' | |
8 | import { VideoTagModel } from './video-tag' | |
9 | ||
10 | @Table({ | |
11 | tableName: 'tag', | |
12 | timestamps: false, | |
13 | indexes: [ | |
7920c273 | 14 | { |
3fd3ab2d C |
15 | fields: [ 'name' ], |
16 | unique: true | |
4b1f1b81 C |
17 | }, |
18 | { | |
19 | name: 'tag_lower_name', | |
20 | fields: [ fn('lower', col('name')) ] as any // FIXME: typings | |
7920c273 | 21 | } |
e02643f3 | 22 | ] |
3fd3ab2d | 23 | }) |
b49f22d8 | 24 | export class TagModel extends Model { |
e02643f3 | 25 | |
3fd3ab2d C |
26 | @AllowNull(false) |
27 | @Is('VideoTag', value => throwIfNotValid(value, isVideoTagValid, 'tag')) | |
28 | @Column | |
29 | name: string | |
7920c273 | 30 | |
3fd3ab2d C |
31 | @CreatedAt |
32 | createdAt: Date | |
7920c273 | 33 | |
3fd3ab2d C |
34 | @UpdatedAt |
35 | updatedAt: Date | |
36 | ||
37 | @BelongsToMany(() => VideoModel, { | |
7920c273 | 38 | foreignKey: 'tagId', |
3fd3ab2d | 39 | through: () => VideoTagModel, |
0a6658fd | 40 | onDelete: 'CASCADE' |
7920c273 | 41 | }) |
3fd3ab2d C |
42 | Videos: VideoModel[] |
43 | ||
96ca24f0 C |
44 | static findOrCreateTags (tags: string[], transaction: Transaction): Promise<MTag[]> { |
45 | if (tags === null) return Promise.resolve([]) | |
2efd32f6 | 46 | |
b49f22d8 | 47 | const tasks: Promise<MTag>[] = [] |
3fd3ab2d C |
48 | tags.forEach(tag => { |
49 | const query = { | |
50 | where: { | |
51 | name: tag | |
52 | }, | |
53 | defaults: { | |
54 | name: tag | |
d9bdd007 C |
55 | }, |
56 | transaction | |
4ff0d862 | 57 | } |
4ff0d862 | 58 | |
96ca24f0 | 59 | const promise = TagModel.findOrCreate<MTag>(query) |
3fd3ab2d C |
60 | .then(([ tagInstance ]) => tagInstance) |
61 | tasks.push(promise) | |
62 | }) | |
6fcd19ba | 63 | |
3fd3ab2d C |
64 | return Promise.all(tasks) |
65 | } | |
2d3741d6 C |
66 | |
67 | // threshold corresponds to how many video the field should have to be returned | |
b49f22d8 | 68 | static getRandomSamples (threshold: number, count: number): Promise<string[]> { |
2d3741d6 C |
69 | const query = 'SELECT tag.name FROM tag ' + |
70 | 'INNER JOIN "videoTag" ON "videoTag"."tagId" = tag.id ' + | |
71 | 'INNER JOIN video ON video.id = "videoTag"."videoId" ' + | |
72 | 'WHERE video.privacy = $videoPrivacy AND video.state = $videoState ' + | |
73 | 'GROUP BY tag.name HAVING COUNT(tag.name) >= $threshold ' + | |
74 | 'ORDER BY random() ' + | |
75 | 'LIMIT $count' | |
76 | ||
77 | const options = { | |
78 | bind: { threshold, count, videoPrivacy: VideoPrivacy.PUBLIC, videoState: VideoState.PUBLISHED }, | |
1735c825 | 79 | type: QueryTypes.SELECT as QueryTypes.SELECT |
2d3741d6 C |
80 | } |
81 | ||
3acc5084 | 82 | return TagModel.sequelize.query<{ name: string }>(query, options) |
2d3741d6 C |
83 | .then(data => data.map(d => d.name)) |
84 | } | |
4ff0d862 | 85 | } |