NickKalar/LMS-APIs
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added bulk library GET

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This commit is contained in:
Nick Kalar
2025-08-13 15:12:10 -04:00
parent 0e06cbaa1b
commit 6ec3894025
2 changed files with 26 additions and 8 deletions
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12
src/main/kotlin/routes/LibraryRoutes.kt
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@@ -11,7 +11,6 @@ import io.ktor.server.request.*
import io.ktor.server.response.*
import io.ktor.server.routing.*
import java.sql.Connection
import java.sql.SQLException
fun Application.configureLibraryRoutes(dbConnection: Connection) {
val libraryService = LibraryService(dbConnection)
@@ -19,9 +18,14 @@ fun Application.configureLibraryRoutes(dbConnection: Connection) {
routing {
get("/libraries") {
try {
val id = call.parameters["id"]?.toLong() ?: throw IllegalArgumentException("query parameter required")
val library = libraryService.read(id)
call.respond(HttpStatusCode.OK, library.toString())
val id = call.parameters["id"]?.toLong()
if (id != null) {
val library = libraryService.readLibraryById(id)
call.respond(HttpStatusCode.OK, library)
} else {
val libraries = libraryService.readAllLibraries()
call.respond(HttpStatusCode.OK, libraries)
}
} catch (cause: DbElementNotFoundException) {
call.respond(HttpStatusCode.BadRequest, cause.message ?: "Unable to find Library.")
} catch (cause: IllegalArgumentException) {

22
src/main/kotlin/service/LibraryService.kt
View File

@@ -4,15 +4,15 @@ import codes.kalar.exception.DbElementInsertionException
import codes.kalar.exception.DbElementNotFoundException
import codes.kalar.model.Library
import codes.kalar.model.NewLibrary
import kotlinx.serialization.json.Json
import java.sql.*
class LibraryService(private val connection: Connection) {
companion object {
private const val SELECT_LIBRARY_BY_ID = "SELECT * FROM library WHERE id = ?"
private const val SELECT_ALL_LIBRARIES = "SELECT * FROM library"
private const val SELECT_LIBRARY_ALL = "SELECT * FROM library ORDER BY id DESC LIMIT 25"
private const val INSERT_LIBRARY = "INSERT INTO library (name, address) VALUES (?, ?)"
private const val INSERT_LIBRARY = "INSERT INTO library (name, address, is_archived) VALUES (?, ?, ?)"
private const val UPDATE_LIBRARY_BY_ID = ""
// In the event are "deleted" erroneously, having a flag set instead of actually removing the entry allows
// for quick reversal.
@@ -23,6 +23,7 @@ class LibraryService(private val connection: Connection) {
val statement = connection.prepareStatement(INSERT_LIBRARY, Statement.RETURN_GENERATED_KEYS)
statement.setString(1, library.name)
statement.setString(2, library.address)
statement.setBoolean(3, library.isArchived)
try {
statement.execute()
val key = statement.generatedKeys
@@ -35,12 +36,12 @@ class LibraryService(private val connection: Connection) {
}
}
suspend fun read(id: Long): Library {
suspend fun readLibraryById(id: Long): Library {
val statement = connection.prepareStatement(SELECT_LIBRARY_BY_ID)
statement.setLong(1, id)
try {
val resultSet = statement.executeQuery()
if (resultSet.next() && resultSet.getBoolean("is_archived")) {
if (resultSet.next() && !resultSet.getBoolean("is_archived")) {
return createLibraryFromResult(resultSet)
} else {
throw DbElementNotFoundException("Could not find collection item. resultSet: $resultSet")
@@ -50,6 +51,19 @@ class LibraryService(private val connection: Connection) {
}
}
fun readAllLibraries(): List<Library> {
val libraries = ArrayList<Library>()
val statement = connection.prepareStatement(SELECT_ALL_LIBRARIES)
val resultSet = statement.executeQuery()
while (resultSet.next()) {
if (!resultSet.getBoolean("is_archived")) {
val library = createLibraryFromResult(resultSet)
libraries.add(library)
}
}
return libraries
}
suspend fun update(library: Library) {}
suspend fun delete(id: String) {}