add pagination and device id query

src/api/route/SampleServiceServer.kt

@@ -25,6 +25,22 @@ class SampleServiceServer {
             call.respond(sampleObjectService.getAllSampleObjects())
         }
 
+        get("/sample/count") {
+            call.respond(sampleObjectService.getCount())
+        }
+
+        get("/sample/page/{page}") {
+            val page = call.parameters["page"] ?: error(HttpStatusCode.NotAcceptable)
+            val pageNum = page.toLong()
+            call.respond(sampleObjectService.getPage(pageNum))
+        }
+
+        get("/sample/device/{device_id}") {
+            val deviceId = call.parameters["device_id"] ?: error(HttpStatusCode.NotAcceptable)
+            val deviceIdNum = deviceId.toInt()
+            call.respond(sampleObjectService.getSampleObjectbyDeviceID(deviceIdNum))
+        }
+
         get("/sample/after/{dateAfter}") {
             val dateAfter = call.parameters["dateAfter"] ?: error(HttpStatusCode.NotAcceptable)
             val dateTimeFormatter: DateTimeFormatter = DateTimeFormatter.ISO_LOCAL_DATE

src/database/service/ISampleObjectService.kt

@@ -7,6 +7,9 @@ import java.util.*
 interface ISampleObjectService{
     fun addOne(apiObject: ApiObject)
     suspend fun getAllSampleObjects(): List<ApiObject>
+    suspend fun getCount(): Long
+    suspend fun getPage(page: Long): List<ApiObject>
+    suspend fun getSampleObjectbyDeviceID(device_id: Int): List<ApiObject>
     suspend fun getSampleObjectbyTag(tag: String): ApiObject?
     suspend fun getSampleObjectbyDate(date: LocalDate): List<ApiObject>
     suspend fun getSampleObjectbeforeDate(date: LocalDate): List<ApiObject>

src/database/service/SampleObjectService.kt

@@ -29,6 +29,20 @@ class SampleObjectService : ISampleObjectService {
         SampleObjects.selectAll().map { toSampleObject(it) }
     }
 
+    override suspend fun getCount(): Long = dbQuery {
+        SampleObjects.selectAll().count()
+    }
+
+    override suspend fun getPage(page: Long): List<ApiObject> = dbQuery {
+        SampleObjects.selectAll().limit(10, page * 10).map { toSampleObject(it) }
+    }
+
+    override suspend fun getSampleObjectbyDeviceID(device_id: Int): List<ApiObject> = dbQuery {
+        SampleObjects.select {
+            (SampleObjects.device_id eq device_id)
+        }.mapNotNull { toSampleObject(it) }
+    }
+
     override suspend fun getSampleObjectbyTag(tag: String): ApiObject? = dbQuery {
         SampleObjects.select {
             (SampleObjects.tag eq tag)