71 lines
2.4 KiB
Kotlin
71 lines
2.4 KiB
Kotlin
// app/src/main/java/com/example/mobilepos/data/AppDatabase.kt
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package com.example.mobilepos.data
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import android.content.Context
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import androidx.room.Database
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import androidx.room.Room
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import androidx.room.RoomDatabase
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import androidx.room.migration.Migration
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import androidx.sqlite.db.SupportSQLiteDatabase
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import com.example.mobilepos.data.dao.*
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import com.example.mobilepos.data.models.*
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@Database(
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entities = [
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CustomerEntity::class,
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DocumentEntity::class,
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PaymentTermsEntity::class,
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SyncLogEntity::class
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],
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version = 2,
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exportSchema = true
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)
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abstract class AppDatabase : RoomDatabase() {
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abstract fun customerDao(): CustomerDao
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abstract fun documentDao(): DocumentDao
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abstract fun paymentTermsDao(): PaymentTermsDao
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abstract fun syncLogDao(): SyncLogDao
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companion object {
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@Volatile
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private var INSTANCE: AppDatabase? = null
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fun getInstance(context: Context): AppDatabase {
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return INSTANCE ?: synchronized(this) {
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val instance = Room.databaseBuilder(
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context.applicationContext,
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AppDatabase::class.java,
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"mobile_pos_database"
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)
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.addMigrations(MIGRATION_1_2)
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.build()
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INSTANCE = instance
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instance
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}
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}
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// マイグレーション: v1 -> v2
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private val MIGRATION_1_2 = object : Migration(1, 2) {
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override fun migrate(database: SupportSQLiteDatabase) {
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// syncTimestamp カラムを追加
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database.execSQL(
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"ALTER TABLE documents ADD COLUMN syncTimestamp INTEGER"
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)
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// インデックスを追加（パフォーマンス向上）
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database.execSQL(
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"CREATE INDEX IF NOT EXISTS idx_documents_customerId ON documents(customerId)"
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)
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database.execSQL(
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"CREATE INDEX IF NOT EXISTS idx_documents_docType ON documents(docType)"
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)
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database.execSQL(
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"CREATE INDEX IF NOT EXISTS idx_documents_status ON documents(status)"
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)
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database.execSQL(
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"CREATE INDEX IF NOT EXISTS idx_documents_synced ON documents(synced)"
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)
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}
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}
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}
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}
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