diff options
Diffstat (limited to 'server/models/video/video-query-builder.ts')
-rw-r--r-- | server/models/video/video-query-builder.ts | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/server/models/video/video-query-builder.ts b/server/models/video/video-query-builder.ts index af1878e7a..96df0a7f8 100644 --- a/server/models/video/video-query-builder.ts +++ b/server/models/video/video-query-builder.ts | |||
@@ -266,13 +266,14 @@ function buildListQuery (model: typeof Model, options: BuildVideosQueryOptions) | |||
266 | * - weights and base score are in number of half-days. | 266 | * - weights and base score are in number of half-days. |
267 | * - all comments are counted, regardless of being written by the video author or not | 267 | * - all comments are counted, regardless of being written by the video author or not |
268 | * see https://github.com/reddit-archive/reddit/blob/master/r2/r2/lib/db/_sorts.pyx#L47-L58 | 268 | * see https://github.com/reddit-archive/reddit/blob/master/r2/r2/lib/db/_sorts.pyx#L47-L58 |
269 | * - we have less interactions than on reddit, so multiply weights by an arbitrary factor | ||
269 | */ | 270 | */ |
270 | const weights = { | 271 | const weights = { |
271 | like: 3, | 272 | like: 3 * 50, |
272 | dislike: -3, | 273 | dislike: -3 * 50, |
273 | view: 1 / 12, | 274 | view: Math.floor((1 / 3) * 50), |
274 | comment: 2, // a comment takes more time than a like to do, but can be done multiple times | 275 | comment: 2 * 50, // a comment takes more time than a like to do, but can be done multiple times |
275 | history: -2 | 276 | history: -2 * 50 |
276 | } | 277 | } |
277 | 278 | ||
278 | joins.push('LEFT JOIN "videoComment" ON "video"."id" = "videoComment"."videoId"') | 279 | joins.push('LEFT JOIN "videoComment" ON "video"."id" = "videoComment"."videoId"') |
@@ -282,7 +283,7 @@ function buildListQuery (model: typeof Model, options: BuildVideosQueryOptions) | |||
282 | `+ LOG(GREATEST(1, "video"."dislikes" - 1)) * ${weights.dislike} ` + // dislikes (-) | 283 | `+ LOG(GREATEST(1, "video"."dislikes" - 1)) * ${weights.dislike} ` + // dislikes (-) |
283 | `+ LOG("video"."views" + 1) * ${weights.view} ` + // views (+) | 284 | `+ LOG("video"."views" + 1) * ${weights.view} ` + // views (+) |
284 | `+ LOG(GREATEST(1, COUNT(DISTINCT "videoComment"."id"))) * ${weights.comment} ` + // comments (+) | 285 | `+ LOG(GREATEST(1, COUNT(DISTINCT "videoComment"."id"))) * ${weights.comment} ` + // comments (+) |
285 | '+ (SELECT EXTRACT(epoch FROM "video"."publishedAt") / 47000) ' // base score (in number of half-days) | 286 | '+ (SELECT (EXTRACT(epoch FROM "video"."publishedAt") - 1446156582) / 47000) ' // base score (in number of half-days) |
286 | 287 | ||
287 | if (options.trendingAlgorithm === 'best' && options.user) { | 288 | if (options.trendingAlgorithm === 'best' && options.user) { |
288 | joins.push( | 289 | joins.push( |