PeerTube/server/models/video/video-channel.ts

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import { FindOptions, Includeable, literal, Op, QueryTypes, ScopeOptions, Transaction, WhereOptions } from 'sequelize'
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import {
AllowNull,
BeforeDestroy,
BelongsTo,
Column,
CreatedAt,
DataType,
Default,
DefaultScope,
ForeignKey,
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HasMany,
Is,
Model,
Scopes,
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Sequelize,
Table,
UpdatedAt
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} from 'sequelize-typescript'
import { MAccountActor } from '@server/types/models'
import { AttributesOnly, pick } from '@shared/core-utils'
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import { ActivityPubActor } from '../../../shared/models/activitypub'
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import { VideoChannel, VideoChannelSummary } from '../../../shared/models/videos'
import {
isVideoChannelDescriptionValid,
isVideoChannelDisplayNameValid,
isVideoChannelSupportValid
} from '../../helpers/custom-validators/video-channels'
import { CONSTRAINTS_FIELDS, WEBSERVER } from '../../initializers/constants'
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import { sendDeleteActor } from '../../lib/activitypub/send'
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import {
MChannelActor,
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MChannelAP,
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MChannelBannerAccountDefault,
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MChannelFormattable,
MChannelSummaryFormattable
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} from '../../types/models/video'
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import { AccountModel, ScopeNames as AccountModelScopeNames, SummaryOptions as AccountSummaryOptions } from '../account/account'
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import { ActorModel, unusedActorAttributesForAPI } from '../actor/actor'
import { ActorFollowModel } from '../actor/actor-follow'
import { ActorImageModel } from '../actor/actor-image'
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import { ServerModel } from '../server/server'
import { setAsUpdated } from '../shared'
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import { buildServerIdsFollowedBy, buildTrigramSearchIndex, createSimilarityAttribute, getSort, throwIfNotValid } from '../utils'
import { VideoModel } from './video'
import { VideoPlaylistModel } from './video-playlist'
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export enum ScopeNames {
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FOR_API = 'FOR_API',
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SUMMARY = 'SUMMARY',
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WITH_ACCOUNT = 'WITH_ACCOUNT',
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WITH_ACTOR = 'WITH_ACTOR',
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WITH_ACTOR_BANNER = 'WITH_ACTOR_BANNER',
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WITH_VIDEOS = 'WITH_VIDEOS',
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WITH_STATS = 'WITH_STATS'
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}
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type AvailableForListOptions = {
actorId: number
search?: string
host?: string
handles?: string[]
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}
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type AvailableWithStatsOptions = {
daysPrior: number
}
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export type SummaryOptions = {
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actorRequired?: boolean // Default: true
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withAccount?: boolean // Default: false
withAccountBlockerIds?: number[]
}
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@DefaultScope(() => ({
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include: [
{
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model: ActorModel,
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required: true
}
]
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}))
@Scopes(() => ({
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[ScopeNames.FOR_API]: (options: AvailableForListOptions) => {
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// Only list local channels OR channels that are on an instance followed by actorId
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const inQueryInstanceFollow = buildServerIdsFollowedBy(options.actorId)
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const whereActorAnd: WhereOptions[] = [
{
[Op.or]: [
{
serverId: null
},
{
serverId: {
[Op.in]: Sequelize.literal(inQueryInstanceFollow)
}
}
]
}
]
let serverRequired = false
let whereServer: WhereOptions
if (options.host && options.host !== WEBSERVER.HOST) {
serverRequired = true
whereServer = { host: options.host }
}
if (options.host === WEBSERVER.HOST) {
whereActorAnd.push({
serverId: null
})
}
let rootWhere: WhereOptions
if (options.handles) {
const or: WhereOptions[] = []
for (const handle of options.handles || []) {
const [ preferredUsername, host ] = handle.split('@')
if (!host) {
or.push({
'$Actor.preferredUsername$': preferredUsername,
'$Actor.serverId$': null
})
} else {
or.push({
'$Actor.preferredUsername$': preferredUsername,
'$Actor.Server.host$': host
})
}
}
rootWhere = {
[Op.or]: or
}
}
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return {
where: rootWhere,
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include: [
{
attributes: {
exclude: unusedActorAttributesForAPI
},
model: ActorModel,
where: {
[Op.and]: whereActorAnd
},
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include: [
{
model: ServerModel,
required: serverRequired,
where: whereServer
},
{
model: ActorImageModel,
as: 'Avatar',
required: false
},
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{
model: ActorImageModel,
as: 'Banner',
required: false
}
]
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},
{
model: AccountModel,
required: true,
include: [
{
attributes: {
exclude: unusedActorAttributesForAPI
},
model: ActorModel, // Default scope includes avatar and server
required: true
}
]
}
]
}
},
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[ScopeNames.SUMMARY]: (options: SummaryOptions = {}) => {
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const include: Includeable[] = [
{
attributes: [ 'id', 'preferredUsername', 'url', 'serverId', 'avatarId' ],
model: ActorModel.unscoped(),
required: options.actorRequired ?? true,
include: [
{
attributes: [ 'host' ],
model: ServerModel.unscoped(),
required: false
},
{
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model: ActorImageModel.unscoped(),
as: 'Avatar',
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required: false
}
]
}
]
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const base: FindOptions = {
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attributes: [ 'id', 'name', 'description', 'actorId' ]
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}
if (options.withAccount === true) {
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include.push({
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model: AccountModel.scope({
method: [ AccountModelScopeNames.SUMMARY, { withAccountBlockerIds: options.withAccountBlockerIds } as AccountSummaryOptions ]
}),
required: true
})
}
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base.include = include
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return base
},
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[ScopeNames.WITH_ACCOUNT]: {
include: [
{
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model: AccountModel,
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required: true
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}
]
},
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[ScopeNames.WITH_ACTOR]: {
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include: [
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ActorModel
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]
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},
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[ScopeNames.WITH_ACTOR_BANNER]: {
include: [
{
model: ActorModel,
include: [
{
model: ActorImageModel,
required: false,
as: 'Banner'
}
]
}
]
},
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[ScopeNames.WITH_VIDEOS]: {
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include: [
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VideoModel
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]
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},
[ScopeNames.WITH_STATS]: (options: AvailableWithStatsOptions = { daysPrior: 30 }) => {
const daysPrior = parseInt(options.daysPrior + '', 10)
return {
attributes: {
include: [
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[
literal('(SELECT COUNT(*) FROM "video" WHERE "channelId" = "VideoChannelModel"."id")'),
'videosCount'
],
[
literal(
'(' +
`SELECT string_agg(concat_ws('|', t.day, t.views), ',') ` +
'FROM ( ' +
'WITH ' +
'days AS ( ' +
`SELECT generate_series(date_trunc('day', now()) - '${daysPrior} day'::interval, ` +
`date_trunc('day', now()), '1 day'::interval) AS day ` +
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') ' +
'SELECT days.day AS day, COALESCE(SUM("videoView".views), 0) AS views ' +
'FROM days ' +
'LEFT JOIN (' +
'"videoView" INNER JOIN "video" ON "videoView"."videoId" = "video"."id" ' +
'AND "video"."channelId" = "VideoChannelModel"."id"' +
`) ON date_trunc('day', "videoView"."startDate") = date_trunc('day', days.day) ` +
'GROUP BY day ' +
'ORDER BY day ' +
') t' +
')'
),
'viewsPerDay'
]
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]
}
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}
}
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}))
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@Table({
tableName: 'videoChannel',
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indexes: [
buildTrigramSearchIndex('video_channel_name_trigram', 'name'),
{
fields: [ 'accountId' ]
},
{
fields: [ 'actorId' ]
}
]
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})
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export class VideoChannelModel extends Model<Partial<AttributesOnly<VideoChannelModel>>> {
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@AllowNull(false)
@Is('VideoChannelName', value => throwIfNotValid(value, isVideoChannelDisplayNameValid, 'name'))
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@Column
name: string
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@AllowNull(true)
@Default(null)
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@Is('VideoChannelDescription', value => throwIfNotValid(value, isVideoChannelDescriptionValid, 'description', true))
@Column(DataType.STRING(CONSTRAINTS_FIELDS.VIDEO_CHANNELS.DESCRIPTION.max))
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description: string
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@AllowNull(true)
@Default(null)
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@Is('VideoChannelSupport', value => throwIfNotValid(value, isVideoChannelSupportValid, 'support', true))
@Column(DataType.STRING(CONSTRAINTS_FIELDS.VIDEO_CHANNELS.SUPPORT.max))
support: string
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@CreatedAt
createdAt: Date
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@UpdatedAt
updatedAt: Date
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@ForeignKey(() => ActorModel)
@Column
actorId: number
@BelongsTo(() => ActorModel, {
foreignKey: {
allowNull: false
},
onDelete: 'cascade'
})
Actor: ActorModel
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@ForeignKey(() => AccountModel)
@Column
accountId: number
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@BelongsTo(() => AccountModel, {
foreignKey: {
allowNull: false
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}
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})
Account: AccountModel
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@HasMany(() => VideoModel, {
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foreignKey: {
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name: 'channelId',
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allowNull: false
},
onDelete: 'CASCADE',
hooks: true
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})
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Videos: VideoModel[]
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@HasMany(() => VideoPlaylistModel, {
foreignKey: {
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allowNull: true
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},
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onDelete: 'CASCADE',
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hooks: true
})
VideoPlaylists: VideoPlaylistModel[]
@BeforeDestroy
static async sendDeleteIfOwned (instance: VideoChannelModel, options) {
if (!instance.Actor) {
instance.Actor = await instance.$get('Actor', { transaction: options.transaction })
}
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await ActorFollowModel.removeFollowsOf(instance.Actor.id, options.transaction)
if (instance.Actor.isOwned()) {
return sendDeleteActor(instance.Actor, options.transaction)
}
return undefined
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}
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static countByAccount (accountId: number) {
const query = {
where: {
accountId
}
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}
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return VideoChannelModel.count(query)
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}
static async getStats () {
function getActiveVideoChannels (days: number) {
const options = {
type: QueryTypes.SELECT as QueryTypes.SELECT,
raw: true
}
const query = `
SELECT COUNT(DISTINCT("VideoChannelModel"."id")) AS "count"
FROM "videoChannel" AS "VideoChannelModel"
INNER JOIN "video" AS "Videos"
ON "VideoChannelModel"."id" = "Videos"."channelId"
AND ("Videos"."publishedAt" > Now() - interval '${days}d')
INNER JOIN "account" AS "Account"
ON "VideoChannelModel"."accountId" = "Account"."id"
INNER JOIN "actor" AS "Account->Actor"
ON "Account"."actorId" = "Account->Actor"."id"
AND "Account->Actor"."serverId" IS NULL
LEFT OUTER JOIN "server" AS "Account->Actor->Server"
ON "Account->Actor"."serverId" = "Account->Actor->Server"."id"`
return VideoChannelModel.sequelize.query<{ count: string }>(query, options)
.then(r => parseInt(r[0].count, 10))
}
const totalLocalVideoChannels = await VideoChannelModel.count()
const totalLocalDailyActiveVideoChannels = await getActiveVideoChannels(1)
const totalLocalWeeklyActiveVideoChannels = await getActiveVideoChannels(7)
const totalLocalMonthlyActiveVideoChannels = await getActiveVideoChannels(30)
const totalHalfYearActiveVideoChannels = await getActiveVideoChannels(180)
return {
totalLocalVideoChannels,
totalLocalDailyActiveVideoChannels,
totalLocalWeeklyActiveVideoChannels,
totalLocalMonthlyActiveVideoChannels,
totalHalfYearActiveVideoChannels
}
}
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static listLocalsForSitemap (sort: string): Promise<MChannelActor[]> {
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const query = {
attributes: [ ],
offset: 0,
order: getSort(sort),
include: [
{
attributes: [ 'preferredUsername', 'serverId' ],
model: ActorModel.unscoped(),
where: {
serverId: null
}
}
]
}
return VideoChannelModel
.unscoped()
.findAll(query)
}
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static listForApi (parameters: Pick<AvailableForListOptions, 'actorId'> & {
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start: number
count: number
sort: string
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}) {
const { actorId } = parameters
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const query = {
offset: parameters.start,
limit: parameters.count,
order: getSort(parameters.sort)
}
return VideoChannelModel
.scope({
method: [ ScopeNames.FOR_API, { actorId } as AvailableForListOptions ]
})
.findAndCountAll(query)
.then(({ rows, count }) => {
return { total: count, data: rows }
})
}
static searchForApi (options: Pick<AvailableForListOptions, 'actorId' | 'search' | 'host' | 'handles'> & {
start: number
count: number
sort: string
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}) {
let attributesInclude: any[] = [ literal('0 as similarity') ]
let where: WhereOptions
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if (options.search) {
const escapedSearch = VideoChannelModel.sequelize.escape(options.search)
const escapedLikeSearch = VideoChannelModel.sequelize.escape('%' + options.search + '%')
attributesInclude = [ createSimilarityAttribute('VideoChannelModel.name', options.search) ]
where = {
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[Op.or]: [
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Sequelize.literal(
'lower(immutable_unaccent("VideoChannelModel"."name")) % lower(immutable_unaccent(' + escapedSearch + '))'
),
Sequelize.literal(
'lower(immutable_unaccent("VideoChannelModel"."name")) LIKE lower(immutable_unaccent(' + escapedLikeSearch + '))'
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)
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]
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}
}
const query = {
attributes: {
include: attributesInclude
},
offset: options.start,
limit: options.count,
order: getSort(options.sort),
where
}
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return VideoChannelModel
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.scope({
method: [ ScopeNames.FOR_API, pick(options, [ 'actorId', 'host', 'handles' ]) as AvailableForListOptions ]
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})
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.findAndCountAll(query)
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.then(({ rows, count }) => {
return { total: count, data: rows }
})
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}
static listByAccount (options: {
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accountId: number
start: number
count: number
sort: string
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withStats?: boolean
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search?: string
}) {
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const escapedSearch = VideoModel.sequelize.escape(options.search)
const escapedLikeSearch = VideoModel.sequelize.escape('%' + options.search + '%')
const where = options.search
? {
[Op.or]: [
Sequelize.literal(
'lower(immutable_unaccent("VideoChannelModel"."name")) % lower(immutable_unaccent(' + escapedSearch + '))'
),
Sequelize.literal(
'lower(immutable_unaccent("VideoChannelModel"."name")) LIKE lower(immutable_unaccent(' + escapedLikeSearch + '))'
)
]
}
: null
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const query = {
offset: options.start,
limit: options.count,
order: getSort(options.sort),
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include: [
{
model: AccountModel,
where: {
id: options.accountId
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},
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required: true
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}
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],
where
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}
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const scopes: string | ScopeOptions | (string | ScopeOptions)[] = [ ScopeNames.WITH_ACTOR_BANNER ]
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if (options.withStats === true) {
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scopes.push({
method: [ ScopeNames.WITH_STATS, { daysPrior: 30 } as AvailableWithStatsOptions ]
})
}
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return VideoChannelModel
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.scope(scopes)
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.findAndCountAll(query)
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.then(({ rows, count }) => {
return { total: count, data: rows }
})
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}
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static loadAndPopulateAccount (id: number, transaction?: Transaction): Promise<MChannelBannerAccountDefault> {
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return VideoChannelModel.unscoped()
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.scope([ ScopeNames.WITH_ACTOR_BANNER, ScopeNames.WITH_ACCOUNT ])
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.findByPk(id, { transaction })
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}
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static loadByUrlAndPopulateAccount (url: string): Promise<MChannelBannerAccountDefault> {
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const query = {
include: [
{
model: ActorModel,
required: true,
where: {
url
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},
include: [
{
model: ActorImageModel,
required: false,
as: 'Banner'
}
]
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}
]
}
return VideoChannelModel
.scope([ ScopeNames.WITH_ACCOUNT ])
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.findOne(query)
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}
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static loadByNameWithHostAndPopulateAccount (nameWithHost: string) {
const [ name, host ] = nameWithHost.split('@')
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if (!host || host === WEBSERVER.HOST) return VideoChannelModel.loadLocalByNameAndPopulateAccount(name)
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return VideoChannelModel.loadByNameAndHostAndPopulateAccount(name, host)
}
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static loadLocalByNameAndPopulateAccount (name: string): Promise<MChannelBannerAccountDefault> {
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const query = {
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include: [
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{
model: ActorModel,
required: true,
where: {
preferredUsername: name,
serverId: null
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},
include: [
{
model: ActorImageModel,
required: false,
as: 'Banner'
}
]
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}
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]
}
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return VideoChannelModel.unscoped()
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.scope([ ScopeNames.WITH_ACCOUNT ])
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.findOne(query)
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}
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static loadByNameAndHostAndPopulateAccount (name: string, host: string): Promise<MChannelBannerAccountDefault> {
const query = {
include: [
{
model: ActorModel,
required: true,
where: {
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preferredUsername: name
},
include: [
{
model: ServerModel,
required: true,
where: { host }
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},
{
model: ActorImageModel,
required: false,
as: 'Banner'
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}
]
}
]
}
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return VideoChannelModel.unscoped()
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.scope([ ScopeNames.WITH_ACCOUNT ])
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.findOne(query)
}
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toFormattedSummaryJSON (this: MChannelSummaryFormattable): VideoChannelSummary {
const actor = this.Actor.toFormattedSummaryJSON()
return {
id: this.id,
name: actor.name,
displayName: this.getDisplayName(),
url: actor.url,
host: actor.host,
avatar: actor.avatar
}
}
toFormattedJSON (this: MChannelFormattable): VideoChannel {
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const viewsPerDayString = this.get('viewsPerDay') as string
const videosCount = this.get('videosCount') as number
let viewsPerDay: { date: Date, views: number }[]
if (viewsPerDayString) {
viewsPerDay = viewsPerDayString.split(',')
.map(v => {
const [ dateString, amount ] = v.split('|')
return {
date: new Date(dateString),
views: +amount
}
})
}
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const actor = this.Actor.toFormattedJSON()
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const videoChannel = {
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id: this.id,
displayName: this.getDisplayName(),
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description: this.description,
support: this.support,
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isLocal: this.Actor.isOwned(),
updatedAt: this.updatedAt,
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ownerAccount: undefined,
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videosCount,
viewsPerDay
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}
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if (this.Account) videoChannel.ownerAccount = this.Account.toFormattedJSON()
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return Object.assign(actor, videoChannel)
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}
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toActivityPubObject (this: MChannelAP): ActivityPubActor {
const obj = this.Actor.toActivityPubObject(this.name)
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return Object.assign(obj, {
summary: this.description,
support: this.support,
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attributedTo: [
{
type: 'Person' as 'Person',
id: this.Account.Actor.url
}
]
})
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}
getLocalUrl (this: MAccountActor | MChannelActor) {
return WEBSERVER.URL + `/video-channels/` + this.Actor.preferredUsername
}
getDisplayName () {
return this.name
}
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isOutdated () {
return this.Actor.isOutdated()
}
setAsUpdated (transaction: Transaction) {
return setAsUpdated('videoChannel', this.id, transaction)
}
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}