fix entities

Signed-off-by: ale <ale@manalejandro.com>

app/src/main/java/com/manalejandro/odb2bluetooth/data/database/ObdDatabase.kt

@@ -24,7 +24,7 @@ import com.manalejandro.odb2bluetooth.data.database.entities.ObdSignal
         ObdSignal::class,
         DtcCode::class
     ],
-    version = 1,
+    version = 2,
     exportSchema = false
 )
 abstract class ObdDatabase : RoomDatabase() {

app/src/main/java/com/manalejandro/odb2bluetooth/data/database/entities/Brand.kt

@@ -9,7 +9,7 @@ import androidx.room.PrimaryKey
 @Entity(tableName = "brands")
 data class Brand(
     @PrimaryKey(autoGenerate = true)
-    val id: Int = 0,
+    val id: Int? = null,
     val name: String
 )
 

app/src/main/java/com/manalejandro/odb2bluetooth/data/database/entities/Generation.kt

@@ -23,7 +23,7 @@ import androidx.room.PrimaryKey
 )
 data class Generation(
     @PrimaryKey(autoGenerate = true)
-    val id: Int = 0,
+    val id: Int? = null,
     @ColumnInfo(name = "model_id")
     val modelId: Int,
     val name: String,

app/src/main/java/com/manalejandro/odb2bluetooth/data/database/entities/Model.kt

@@ -23,7 +23,7 @@ import androidx.room.PrimaryKey
 )
 data class Model(
     @PrimaryKey(autoGenerate = true)
-    val id: Int = 0,
+    val id: Int? = null,
     @ColumnInfo(name = "brand_id")
     val brandId: Int,
     val name: String,

app/src/main/java/com/manalejandro/odb2bluetooth/data/database/entities/ObdSignal.kt

@@ -23,7 +23,7 @@ import androidx.room.PrimaryKey
 )
 data class ObdSignal(
     @PrimaryKey(autoGenerate = true)
-    val id: Int = 0,
+    val id: Int? = null,
     @ColumnInfo(name = "model_id")
     val modelId: Int,
     @ColumnInfo(name = "signal_id")