Replace Room with SQLDelight

Author: mitrejcevski

build.gradle.kts

@@ -8,4 +8,5 @@ plugins {
     alias(libs.plugins.kapt) apply false
     alias(libs.plugins.parcelable) apply false
     alias(libs.plugins.paparazzi) apply false
+    alias(libs.plugins.sql.delight) apply false
 }

gradle/libs.versions.toml

@@ -3,7 +3,7 @@
     compileSdkVersion = "35"
     javaVersion = "17"
     gradlePluginVersion = "8.8.2"
-    roomVersion = "2.6.1"
+    sqlDelightVersion = "2.0.2"
     truthVersion = "1.1.5"
     kotlinVersion = "2.0.20"
     androidxCoreKtxVersion = "1.15.0"
@@ -39,9 +39,7 @@
 
     coil-compose = { module = "io.coil-kt:coil-compose", version.ref = "coilVersion" }
 
-    room-ktx = { module = "androidx.room:room-ktx", version.ref = "roomVersion" }
-    room-runtime = { module = "androidx.room:room-runtime", version.ref = "roomVersion" }
-    room-compiler = { module = "androidx.room:room-compiler", version.ref = "roomVersion" }
+    sql-delight-android = { module = "app.cash.sqldelight:android-driver", version.ref = "sqlDelightVersion" }
 
     hilt-android = { module = "com.google.dagger:hilt-android", version.ref = "hiltVersion" }
     hilt-navigation = { module = "androidx.hilt:hilt-navigation-compose", version.ref = "hiltNavigationVersion" }
@@ -70,7 +68,6 @@
     compose = ["compose-activity", "compose-ui", "compose-graphics", "compose-preview", "compose-material3", "compose-navigation", "compose-lifecycle-runtime", "compose-material-icons", "network-serialization"]
     compose-debug = ["compose-ui-tooling", "compose-ui-test-manifest"]
     hilt = ["hilt-android", "hilt-navigation"]
-    room = ["room-ktx", "room-runtime"]
     retrofit = ["network-okhttp", "network-retrofit", "network-serialization", "network-serialization-converter"]
     ui-testing = ["androidx-junit", "androidx-espresso", "androidx-compose-test", "hilt-android-test"]
     unit-testing = ["jupiter", "jupiter-params", "truth", "jupiter-vintage", "test-coroutines", "test-okhttp-mockserver"]
@@ -85,3 +82,4 @@
     hilt-android = { id = "com.google.dagger.hilt.android", version.ref = "hiltVersion" }
     paparazzi = { id = "app.cash.paparazzi", version.ref = "paparazziVersion" }
     parcelable = { id = "org.jetbrains.kotlin.plugin.parcelize", version.ref = "kotlinVersion" }
+    sql-delight = { id = "app.cash.sqldelight", version.ref = "sqlDelightVersion" }

shared/database/build.gradle.kts

@@ -1,7 +1,7 @@
 plugins {
     alias(libs.plugins.android.library)
     alias(libs.plugins.kotlin.android)
-    alias(libs.plugins.kapt)
+    alias(libs.plugins.sql.delight)
 }
 
 android {
@@ -46,11 +46,17 @@ android {
     }
 }
 
+sqldelight {
+    databases {
+        create("UsersDatabase") {
+            packageName.set("nl.jovmit.androiddevs.core.database")
+        }
+    }
+}
+
 dependencies {
     implementation(libs.bundles.hilt)
-    implementation(libs.bundles.room)
-
-    kapt(libs.room.compiler)
+    implementation(libs.sql.delight.android)
 
     testImplementation(libs.bundles.unit.testing)
 

shared/database/src/main/java/nl/jovmit/androiddevs/core/database/AppDatabase.kt

@@ -1,7 +1,8 @@
 package nl.jovmit.androiddevs.core.database
 
 import android.content.Context
-import androidx.room.Room
+import app.cash.sqldelight.db.SqlDriver
+import app.cash.sqldelight.driver.android.AndroidSqliteDriver
 import dagger.Module
 import dagger.Provides
 import dagger.hilt.InstallIn
@@ -13,24 +14,27 @@ import javax.inject.Singleton
 @InstallIn(SingletonComponent::class)
 object DatabaseModule {
 
-    private const val DATABASE_NAME = "android_devs"
+    @Provides
+    @Singleton
+    fun provideSqlDriver(
+        @ApplicationContext context: Context
+    ): SqlDriver {
+        return AndroidSqliteDriver(UsersDatabase.Schema, context, "users.db")
+    }
 
     @Provides
     @Singleton
-    fun provideDatabase(
-        @ApplicationContext appContext: Context
-    ): AppDatabase {
-        return Room
-            .databaseBuilder(
-                context = appContext,
-                klass = AppDatabase::class.java,
-                name = DATABASE_NAME
-            ).build()
+    fun provideUsersDatabase(
+        driver: SqlDriver
+    ): UsersDatabase {
+        return UsersDatabase(driver)
     }
 
     @Provides
     @Singleton
-    fun provideUserDao(database: AppDatabase): UserDao {
-        return database.userDao()
+    fun provideUsersQueries(
+        database: UsersDatabase
+    ): UserEntityQueries {
+        return database.userEntityQueries
     }
 }

shared/database/src/main/java/nl/jovmit/androiddevs/core/database/DatabaseModule.kt

@@ -0,0 +1,19 @@
+CREATE TABLE UserEntity (
+    uid TEXT PRIMARY KEY NOT NULL,
+    email TEXT NOT NULL,
+    about TEXT NOT NULL
+);
+
+fetchAll:
+SELECT * FROM UserEntity;
+
+addUser:
+INSERT INTO UserEntity(uid, email, about)
+VALUES (?, ?, ?);
+
+addFullUser:
+INSERT INTO UserEntity(uid, email, about)
+VALUES ?;
+
+deleteUser:
+DELETE FROM UserEntity WHERE uid IN :uid;