migratedb.v1.integrationtest.database.mutation.BasicCreateTableMutation.kt Maven / Gradle / Ivy
The newest version!
/*
* Copyright 2022-2024 The MigrateDB contributors
*
* 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 migratedb.v1.integrationtest.database.mutation
import migratedb.v1.integrationtest.util.base.SafeIdentifier
import migratedb.v1.integrationtest.util.base.work
import java.sql.Connection
/**
* Creates / drops a table in a schema. Works with SQL databases that support `information_schema.tables`.
*/
class BasicCreateTableMutation(private val normalizedSchema: SafeIdentifier?, private val normalizedTable: SafeIdentifier) :
IndependentDatabaseMutation {
private val qualifiedTable = when (normalizedSchema) {
null -> normalizedTable
else -> "$normalizedSchema.$normalizedTable"
}
override fun isApplied(connection: Connection): Boolean {
return connection.work(commit = false) {
var query = "select table_name from information_schema.tables where table_name = '$normalizedTable'"
if (normalizedSchema != null) {
query += " and table_schema = '$normalizedSchema'"
}
it.query(query) { _, _ -> true }.isNotEmpty()
}
}
override fun apply(connection: Connection) {
connection.work(commit = true) {
it.execute("create table $qualifiedTable(id int not null primary key)")
}
}
override fun undo(connection: Connection) {
connection.work(commit = true) {
it.execute("drop table $qualifiedTable")
}
}
}