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Correctly select results using cursors while sorting (#696)

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When using cursors for pagination while sorting, the sort order was inverted (desc -> asc, asc -> desc).
However, this was then not considered when selecting results based on the cursor.
For before/after results where always selected via greater/less.
Due to inverting the sort order, this also needs to be inverted depending on the sort order (desc or asc).
This commit is contained in:
schroda
2023-10-02 23:46:26 +02:00
committed by GitHub
parent 9430c8c580
commit be2628875f
6 changed files with 85 additions and 12 deletions
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16
server/src/main/kotlin/suwayomi/tachidesk/graphql/queries/MangaQuery.kt
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@@ -12,6 +12,12 @@ import graphql.schema.DataFetchingEnvironment
import org.jetbrains.exposed.sql.Column
import org.jetbrains.exposed.sql.Op
import org.jetbrains.exposed.sql.SortOrder
import org.jetbrains.exposed.sql.SortOrder.ASC
import org.jetbrains.exposed.sql.SortOrder.ASC_NULLS_FIRST
import org.jetbrains.exposed.sql.SortOrder.ASC_NULLS_LAST
import org.jetbrains.exposed.sql.SortOrder.DESC
import org.jetbrains.exposed.sql.SortOrder.DESC_NULLS_FIRST
import org.jetbrains.exposed.sql.SortOrder.DESC_NULLS_LAST
import org.jetbrains.exposed.sql.SqlExpressionBuilder.greater
import org.jetbrains.exposed.sql.SqlExpressionBuilder.less
import org.jetbrains.exposed.sql.andWhere
@@ -229,11 +235,17 @@ class MangaQuery {
if (after != null) {
res.andWhere {
(orderBy ?: MangaOrderBy.ID).greater(after)
when (orderByType) {
DESC, DESC_NULLS_FIRST, DESC_NULLS_LAST -> (orderBy ?: MangaOrderBy.ID).less(after)
null, ASC, ASC_NULLS_FIRST, ASC_NULLS_LAST -> (orderBy ?: MangaOrderBy.ID).greater(after)
}
}
} else if (before != null) {
res.andWhere {
(orderBy ?: MangaOrderBy.ID).less(before)
when (orderByType) {
DESC, DESC_NULLS_FIRST, DESC_NULLS_LAST -> (orderBy ?: MangaOrderBy.ID).greater(before)
null, ASC, ASC_NULLS_FIRST, ASC_NULLS_LAST -> (orderBy ?: MangaOrderBy.ID).less(before)
}
}
}