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Simplify keyset pagination

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This commit is contained in:
Syer10
2023-04-08 15:27:18 -04:00
parent 58a623d44d
commit 891fb0b479
4 changed files with 34 additions and 58 deletions
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41
server/src/main/kotlin/suwayomi/tachidesk/graphql/queries/MangaQuery.kt
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@@ -12,12 +12,9 @@ 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.SqlExpressionBuilder.eq
import org.jetbrains.exposed.sql.SqlExpressionBuilder.greater
import org.jetbrains.exposed.sql.SqlExpressionBuilder.less
import org.jetbrains.exposed.sql.and
import org.jetbrains.exposed.sql.andWhere
import org.jetbrains.exposed.sql.or
import org.jetbrains.exposed.sql.select
import org.jetbrains.exposed.sql.selectAll
import org.jetbrains.exposed.sql.transactions.transaction
@@ -37,6 +34,8 @@ import suwayomi.tachidesk.graphql.server.primitives.Cursor
import suwayomi.tachidesk.graphql.server.primitives.OrderBy
import suwayomi.tachidesk.graphql.server.primitives.PageInfo
import suwayomi.tachidesk.graphql.server.primitives.QueryResults
import suwayomi.tachidesk.graphql.server.primitives.greaterNotUnique
import suwayomi.tachidesk.graphql.server.primitives.lessNotUnique
import suwayomi.tachidesk.graphql.server.primitives.maybeSwap
import suwayomi.tachidesk.graphql.types.MangaNodeList
import suwayomi.tachidesk.graphql.types.MangaType
@@ -73,42 +72,18 @@ class MangaQuery {
override fun greater(cursor: Cursor): Op<Boolean> {
return when (this) {
ID -> MangaTable.id greater cursor.value.toInt()
TITLE -> {
val id = cursor.value.substringBefore('-').toInt()
val value = cursor.value.substringAfter('-')
(MangaTable.title greater value) or ((MangaTable.title eq value) and (MangaTable.id greater id))
}
IN_LIBRARY_AT -> {
val id = cursor.value.substringBefore('-').toInt()
val value = cursor.value.substringAfter('-').toLong()
(MangaTable.inLibraryAt greater value) or ((MangaTable.inLibraryAt eq value) and (MangaTable.id greater id))
}
LAST_FETCHED_AT -> {
val id = cursor.value.substringBefore('-').toInt()
val value = cursor.value.substringAfter('-').toLong()
(MangaTable.lastFetchedAt greater value) or ((MangaTable.lastFetchedAt eq value) and (MangaTable.id greater id))
}
TITLE -> greaterNotUnique(MangaTable.title, MangaTable.id, cursor, String::toString)
IN_LIBRARY_AT -> greaterNotUnique(MangaTable.inLibraryAt, MangaTable.id, cursor, String::toLong)
LAST_FETCHED_AT -> greaterNotUnique(MangaTable.lastFetchedAt, MangaTable.id, cursor, String::toLong)
}
}
override fun less(cursor: Cursor): Op<Boolean> {
return when (this) {
ID -> MangaTable.id less cursor.value.toInt()
TITLE -> {
val id = cursor.value.substringBefore('-').toInt()
val value = cursor.value.substringAfter('-')
(MangaTable.title less value) or ((MangaTable.title eq value) and (MangaTable.id less id))
}
IN_LIBRARY_AT -> {
val id = cursor.value.substringBefore('-').toInt()
val value = cursor.value.substringAfter('-').toLong()
(MangaTable.inLibraryAt less value) or ((MangaTable.inLibraryAt eq value) and (MangaTable.id less id))
}
LAST_FETCHED_AT -> {
val id = cursor.value.substringBefore('-').toInt()
val value = cursor.value.substringAfter('-').toLong()
(MangaTable.lastFetchedAt less value) or ((MangaTable.lastFetchedAt eq value) and (MangaTable.id less id))
}
TITLE -> lessNotUnique(MangaTable.title, MangaTable.id, cursor, String::toString)
IN_LIBRARY_AT -> lessNotUnique(MangaTable.inLibraryAt, MangaTable.id, cursor, String::toLong)
LAST_FETCHED_AT -> lessNotUnique(MangaTable.lastFetchedAt, MangaTable.id, cursor, String::toLong)
}
}