ids in crud repos

CHANGELOG.md

@@ -2,6 +2,18 @@
 
 ## 0.15.0
 
+* `Repos`:
+    * `CRUD`:
+        * `Common`:
+            * New method `ReadCRUDRepo#getIdsByPagination`
+        * `Android`:
+            * `AbstractAndroidCRUDRepo` got new abstract method `toId`
+        * `Exposed`:
+            * `CommonExposedRepo` new abstract property `asId`
+        * `Ktor`:
+            * `Client`:
+                * `KtorReadCRUDRepoClient` now requires `paginationIdType`
+
 ## 0.14.4
 
 * `Common`:

repos/cache/src/commonMain/kotlin/dev/inmo/micro_utils/repos/cache/full/FullCRUDCacheRepo.kt

@@ -46,6 +46,12 @@ open class FullReadCRUDCacheRepo<ObjectType, IdType>(
         { if (it.results.isNotEmpty()) actualizeAll() }
     )
 
+    override suspend fun getIdsByPagination(pagination: Pagination): PaginationResult<IdType> = doOrTakeAndActualize(
+        { keys(pagination).takeIf { it.results.isNotEmpty() }.optionalOrAbsentIfNull },
+        { getIdsByPagination(pagination) },
+        { if (it.results.isNotEmpty()) actualizeAll() }
+    )
+
     override suspend fun count(): Long = doOrTakeAndActualize(
         { count().takeIf { it != 0L }.optionalOrAbsentIfNull },
         { count() },

repos/common/src/commonMain/kotlin/dev/inmo/micro_utils/repos/StandartCRUDRepo.kt

@@ -6,6 +6,7 @@ import kotlinx.coroutines.flow.Flow
 
 interface ReadCRUDRepo<ObjectType, IdType> : Repo {
     suspend fun getByPagination(pagination: Pagination): PaginationResult<ObjectType>
+    suspend fun getIdsByPagination(pagination: Pagination): PaginationResult<IdType>
     suspend fun getById(id: IdType): ObjectType?
     suspend fun contains(id: IdType): Boolean
     suspend fun count(): Long

repos/common/src/commonMain/kotlin/dev/inmo/micro_utils/repos/mappers/CRUDMappers.kt

@@ -20,6 +20,14 @@ open class MapperReadCRUDRepo<FromId, FromRegistered, ToId, ToRegistered>(
         )
     }
 
+    override suspend fun getIdsByPagination(pagination: Pagination): PaginationResult<FromId> = to.getIdsByPagination(
+        pagination
+    ).let {
+        it.changeResultsUnchecked(
+            it.results.map { it.toInnerKey() }
+        )
+    }
+
     override suspend fun count(): Long = to.count()
 
     override suspend fun contains(id: FromId): Boolean = to.contains(id.toOutKey())

repos/common/src/main/kotlin/dev/inmo/micro_utils/repos/crud/AbstractAndroidCRUDRepo.kt

@@ -16,6 +16,7 @@ abstract class AbstractAndroidCRUDRepo<ObjectType, IdType>(
     protected abstract val tableName: String
     protected abstract val idColumnName: String
     protected abstract suspend fun Cursor.toObject(): ObjectType
+    protected abstract suspend fun Cursor.toId(): IdType
     protected fun SQLiteDatabase.count(): Long = select(tableName).use {
         it.count
     }.toLong()
@@ -64,4 +65,23 @@ abstract class AbstractAndroidCRUDRepo<ObjectType, IdType>(
             }
         }
     }
+
+    override suspend fun getIdsByPagination(pagination: Pagination): PaginationResult<IdType> {
+        return helper.readableTransaction {
+            select(
+                tableName,
+                limit = pagination.limitClause()
+            ).use {
+                if (it.moveToFirst()) {
+                    val resultList = mutableListOf(it.toId())
+                    while (it.moveToNext()) {
+                        resultList.add(it.toId())
+                    }
+                    resultList.createPaginationResult(pagination, count())
+                } else {
+                    emptyList<IdType>().createPaginationResult(pagination, 0)
+                }
+            }
+        }
+    }
 }

repos/exposed/src/jvmMain/kotlin/dev/inmo/micro_utils/repos/exposed/AbstractExposedReadCRUDRepo.kt

@@ -22,6 +22,17 @@ abstract class AbstractExposedReadCRUDRepo<ObjectType, IdType>(
             )
         }
     }
+
+    override suspend fun getIdsByPagination(pagination: Pagination): PaginationResult<IdType> {
+        return transaction(db = database) {
+            selectAll().paginate(pagination).map {
+                it.asId
+            }.createPaginationResult(
+                pagination,
+                selectAll().count()
+            )
+        }
+    }
     override suspend fun getById(id: IdType): ObjectType? {
         return transaction(db = database) {
             select {

repos/exposed/src/jvmMain/kotlin/dev/inmo/micro_utils/repos/exposed/CommonExposedRepo.kt

@@ -4,6 +4,7 @@ import org.jetbrains.exposed.sql.*
 
 interface CommonExposedRepo<IdType, ObjectType> : ExposedRepo {
     val ResultRow.asObject: ObjectType
+    val ResultRow.asId: IdType
     val selectById: ISqlExpressionBuilder.(IdType) -> Op<Boolean>
     val selectByIds: ISqlExpressionBuilder.(List<IdType>) -> Op<Boolean>
         get() = { list ->

repos/exposed/src/jvmMain/kotlin/dev/inmo/micro_utils/repos/exposed/keyvalue/AbstractExposedReadKeyValueRepo.kt

@@ -15,7 +15,13 @@ abstract class AbstractExposedReadKeyValueRepo<Key, Value>(
     CommonExposedRepo<Key, Value>,
     Table(tableName ?: "") {
     abstract val keyColumn: Column<*>
+
+    /**
+     * Same as [asId] in context of KeyValue repo
+     */
     abstract val ResultRow.asKey: Key
+    override val ResultRow.asId: Key
+        get() = asKey
     abstract val selectByValue: ISqlExpressionBuilder.(Value) -> Op<Boolean>
 
     override suspend fun get(k: Key): Value? = transaction(database) {

repos/exposed/src/jvmMain/kotlin/dev/inmo/micro_utils/repos/exposed/onetomany/AbstractExposedReadKeyValueRepo.kt

@@ -17,6 +17,8 @@ abstract class AbstractExposedReadKeyValuesRepo<Key, Value>(
     Table(tableName ?: "") {
     abstract val keyColumn: Column<*>
     abstract val ResultRow.asKey: Key
+    override val ResultRow.asId: Key
+        get() = asKey
     abstract val selectByValue: ISqlExpressionBuilder.(Value) -> Op<Boolean>
 
     override suspend fun count(k: Key): Long = transaction(database) { select { selectById(k) }.count() }

repos/inmemory/src/commonMain/kotlin/dev/inmo/micro_utils/repos/MapCRUDRepo.kt

@@ -15,6 +15,13 @@ class ReadMapCRUDRepo<ObjectType, IdType>(
         )
     }
 
+    override suspend fun getIdsByPagination(pagination: Pagination): PaginationResult<IdType> {
+        return map.keys.drop(pagination.firstIndex).take(pagination.size).createPaginationResult(
+            pagination,
+            count()
+        )
+    }
+
     override suspend fun getById(id: IdType): ObjectType? = map[id]
 
     override suspend fun contains(id: IdType): Boolean = map.containsKey(id)

repos/ktor/client/src/commonMain/kotlin/dev/inmo/micro_utils/repos/ktor/client/crud/KtorCRUDRepoClient.kt

@@ -28,6 +28,7 @@ class KtorCRUDRepoClient<ObjectType, IdType, InputValue> (
                 httpClient,
                 typeInfo<ObjectType>(),
                 typeInfo<PaginationResult<ObjectType>>(),
+                typeInfo<PaginationResult<IdType>>(),
                 contentType,
                 idSerializer
             ),

repos/ktor/client/src/commonMain/kotlin/dev/inmo/micro_utils/repos/ktor/client/crud/KtorReadCRUDRepoClient.kt

@@ -19,6 +19,7 @@ class KtorReadCRUDRepoClient<ObjectType, IdType> (
     private val httpClient: HttpClient,
     private val objectType: TypeInfo,
     private val paginationObjectType: TypeInfo,
+    private val paginationIdType: TypeInfo,
     private val contentType: ContentType,
     private val idSerializer: suspend (IdType) -> String
 ) : ReadCRUDRepo<ObjectType, IdType> {
@@ -27,6 +28,11 @@ class KtorReadCRUDRepoClient<ObjectType, IdType> (
     ) {
         contentType(contentType)
     }.body(paginationObjectType)
+    override suspend fun getIdsByPagination(pagination: Pagination): PaginationResult<IdType> = httpClient.get(
+        buildStandardUrl(baseUrl, getIdsByPaginationRouting, pagination.asUrlQueryParts)
+    ) {
+        contentType(contentType)
+    }.body(paginationIdType)
 
     override suspend fun getById(id: IdType): ObjectType? = httpClient.get(
         buildStandardUrl(
@@ -72,6 +78,7 @@ inline fun <reified ObjectType, IdType> KtorReadCRUDRepoClient(
     httpClient,
     typeInfo<ObjectType>(),
     typeInfo<PaginationResult<ObjectType>>(),
+    typeInfo<PaginationResult<IdType>>(),
     contentType,
     idSerializer
 )

repos/ktor/common/src/commonMain/kotlin/dev/inmo/micro_utils/repos/ktor/common/crud/CrudReadRoutes.kt

@@ -1,5 +1,6 @@
 package dev.inmo.micro_utils.repos.ktor.common.crud
 
 const val getByPaginationRouting = "getByPagination"
+const val getIdsByPaginationRouting = "getIdsByPagination"
 const val getByIdRouting = "getById"
 const val containsRouting = "contains"

repos/ktor/server/src/jvmMain/kotlin/dev/inmo/micro_utils/repos/ktor/server/crud/KtorReadCRUDRepoRoutes.kt

@@ -23,6 +23,11 @@ inline fun <reified ObjectType, reified IdType> Route.configureReadCRUDRepoRoute
 
         call.respond(originalRepo.getByPagination(pagination))
     }
+    get(getIdsByPaginationRouting) {
+        val pagination = call.request.queryParameters.extractPagination
+
+        call.respond(originalRepo.getIdsByPagination(pagination))
+    }
 
     get(getByIdRouting) {
         val id = idDeserializer(