Query for mangas in specific categories (#712)

Author: schroda

server/src/main/kotlin/suwayomi/tachidesk/graphql/queries/MangaQuery.kt

@@ -44,6 +44,7 @@ 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
+import suwayomi.tachidesk.manga.model.table.CategoryMangaTable
 import suwayomi.tachidesk.manga.model.table.MangaStatus
 import suwayomi.tachidesk.manga.model.table.MangaTable
 import java.util.concurrent.CompletableFuture
@@ -110,6 +111,7 @@ class MangaQuery {
         val realUrl: String? = null,
         val lastFetchedAt: Long? = null,
         val chaptersLastFetchedAt: Long? = null,
+        val categoryIds: List<Int>? = null,
     ) : HasGetOp {
         override fun getOp(): Op<Boolean>? {
             val opAnd = OpAnd()
@@ -129,6 +131,7 @@ class MangaQuery {
             opAnd.eq(realUrl, MangaTable.realUrl)
             opAnd.eq(lastFetchedAt, MangaTable.lastFetchedAt)
             opAnd.eq(chaptersLastFetchedAt, MangaTable.chaptersLastFetchedAt)
+            opAnd.inList(categoryIds, CategoryMangaTable.category)
 
             return opAnd.op
         }
@@ -179,6 +182,7 @@ class MangaQuery {
         val realUrl: StringFilter? = null,
         val lastFetchedAt: LongFilter? = null,
         val chaptersLastFetchedAt: LongFilter? = null,
+        val categoryId: IntFilter? = null,
         override val and: List<MangaFilter>? = null,
         override val or: List<MangaFilter>? = null,
         override val not: MangaFilter? = null,
@@ -201,6 +205,7 @@ class MangaQuery {
                 andFilterWithCompareString(MangaTable.realUrl, realUrl),
                 andFilterWithCompare(MangaTable.lastFetchedAt, lastFetchedAt),
                 andFilterWithCompare(MangaTable.chaptersLastFetchedAt, chaptersLastFetchedAt),
+                andFilterWithCompareEntity(CategoryMangaTable.category, categoryId),
             )
         }
     }
@@ -218,7 +223,7 @@ class MangaQuery {
     ): MangaNodeList {
         val queryResults =
             transaction {
-                val res = MangaTable.selectAll()
+                val res = MangaTable.leftJoin(CategoryMangaTable).selectAll()
 
                 res.applyOps(condition, filter)
 

server/src/main/kotlin/suwayomi/tachidesk/graphql/queries/filter/Filter.kt

@@ -382,6 +382,15 @@ class OpAnd(var op: Op<Boolean>? = null) {
         op = if (op == null) expr else (op!! and expr)
     }
 
+    fun <T : Any> andWhere(
+        values: List<T>?,
+        andPart: SqlExpressionBuilder.(List<T>) -> Op<Boolean>,
+    ) {
+        values ?: return
+        val expr = Op.build { andPart(values) }
+        op = if (op == null) expr else (op!! and expr)
+    }
+
     fun <T> eq(
         value: T?,
         column: Column<T>,
@@ -392,10 +401,22 @@ class OpAnd(var op: Op<Boolean>? = null) {
         column: Column<EntityID<T>>,
     ) = andWhere(value) { column eq it }
 
+    fun <T> inList(
+        values: List<T>?,
+        column: Column<T>,
+    ) = andWhere(values) { column inList it }
+
+    @JvmName("inListComparable")
+    fun <T : Comparable<T>> inList(
+        values: List<T>?,
+        column: Column<EntityID<T>>,
+    ) = andWhere(values) { column inList it }
+
     fun like(
         value: String?,
         column: Column<String?>,
     ) = andWhere(value) { column like it }
+
 }
 
 fun <T : Comparable<T>> andFilterWithCompare(