96 lines
3.4 KiB
Kotlin
96 lines
3.4 KiB
Kotlin
/*
|
|
* Copyright 2015 Christian Basler
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
package ch.dissem.apps.abit.repository
|
|
|
|
import android.content.ContentValues
|
|
import android.content.Context
|
|
import android.database.sqlite.SQLiteDatabase
|
|
import android.database.sqlite.SQLiteOpenHelper
|
|
import ch.dissem.apps.abit.util.Assets
|
|
import ch.dissem.apps.abit.util.UuidUtils
|
|
import java.util.*
|
|
|
|
/**
|
|
* Handles database migration and provides access.
|
|
*/
|
|
class SqlHelper(private val ctx: Context) : SQLiteOpenHelper(ctx, DATABASE_NAME, null, DATABASE_VERSION) {
|
|
|
|
override fun onCreate(db: SQLiteDatabase) = onUpgrade(db, 0, DATABASE_VERSION)
|
|
|
|
override fun onUpgrade(db: SQLiteDatabase, oldVersion: Int, newVersion: Int) = mapOf(
|
|
0 to {
|
|
executeMigration(db, "V1.0__Create_table_inventory")
|
|
executeMigration(db, "V1.1__Create_table_address")
|
|
executeMigration(db, "V1.2__Create_table_message")
|
|
},
|
|
1 to {
|
|
// executeMigration(db, "V2.0__Update_table_message");
|
|
executeMigration(db, "V2.1__Create_table_POW")
|
|
},
|
|
2 to {
|
|
executeMigration(db, "V3.0__Update_table_address")
|
|
},
|
|
3 to {
|
|
executeMigration(db, "V3.1__Update_table_POW")
|
|
executeMigration(db, "V3.2__Update_table_message")
|
|
},
|
|
4 to {
|
|
executeMigration(db, "V3.3__Create_table_node")
|
|
},
|
|
5 to {
|
|
executeMigration(db, "V3.4__Add_label_outbox")
|
|
},
|
|
6 to {
|
|
executeMigration(db, "V4.0__Create_table_message_parent")
|
|
},
|
|
7 to {
|
|
setMissingConversationIds(db)
|
|
}
|
|
).filterKeys { it in oldVersion until newVersion }.forEach { (_, v) -> v.invoke() }
|
|
|
|
/**
|
|
* Set UUIDs for all messages that have no conversation ID
|
|
*/
|
|
private fun setMissingConversationIds(db: SQLiteDatabase) = db.query(
|
|
"Message", arrayOf("id"),
|
|
"conversation IS NULL", null, null, null, null
|
|
).use { c ->
|
|
while (c.moveToNext()) {
|
|
val id = c.getLong(0)
|
|
setMissingConversationId(id, db)
|
|
}
|
|
}
|
|
|
|
private fun setMissingConversationId(id: Long, db: SQLiteDatabase) {
|
|
val values = ContentValues(1)
|
|
values.put("conversation", UuidUtils.asBytes(UUID.randomUUID()))
|
|
db.update("Message", values, "id=?", arrayOf(id.toString()))
|
|
}
|
|
|
|
private fun executeMigration(db: SQLiteDatabase, name: String) {
|
|
for (statement in Assets.readSqlStatements(ctx, "db/migration/$name.sql")) {
|
|
db.execSQL(statement)
|
|
}
|
|
}
|
|
|
|
companion object {
|
|
// If you change the database schema, you must increment the database version.
|
|
private val DATABASE_VERSION = 7
|
|
val DATABASE_NAME = "jabit.db"
|
|
}
|
|
}
|