add pagination and device id query

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)