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feat: EXPOSED-47 Add support for SET DEFAULT reference option (#1744)
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27 changes: 27 additions & 0 deletions
27
exposed-tests/src/main/kotlin/org/jetbrains/exposed/sql/tests/shared/ForeignKeyTables.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,27 @@ | ||
| package org.jetbrains.exposed.sql.tests.shared | ||
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| import org.jetbrains.exposed.sql.ReferenceOption | ||
| import org.jetbrains.exposed.sql.Table | ||
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| object Category : Table("Category") { | ||
| val id = integer("id") | ||
| val name = varchar(name = "name", length = 20) | ||
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| override val primaryKey = PrimaryKey(id) | ||
| } | ||
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| const val DEFAULT_CATEGORY_ID = 0 | ||
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| object Item : Table("Item") { | ||
| val id = integer("id") | ||
| val name = varchar(name = "name", length = 20) | ||
| val categoryId = integer("categoryId") | ||
| .default(DEFAULT_CATEGORY_ID) | ||
| .references( | ||
| Category.id, | ||
| onDelete = ReferenceOption.SET_DEFAULT, | ||
| onUpdate = ReferenceOption.NO_ACTION | ||
| ) | ||
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| override val primaryKey = PrimaryKey(id) | ||
| } |
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73
...tests/src/test/kotlin/org/jetbrains/exposed/sql/tests/sqlite/ForeignKeyConstraintTests.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,73 @@ | ||
| package org.jetbrains.exposed.sql.tests.sqlite | ||
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| import org.jetbrains.exposed.sql.Database | ||
| import org.jetbrains.exposed.sql.SchemaUtils | ||
| import org.jetbrains.exposed.sql.SqlExpressionBuilder.eq | ||
| import org.jetbrains.exposed.sql.Transaction | ||
| import org.jetbrains.exposed.sql.deleteWhere | ||
| import org.jetbrains.exposed.sql.insert | ||
| import org.jetbrains.exposed.sql.select | ||
| import org.jetbrains.exposed.sql.tests.DatabaseTestsBase | ||
| import org.jetbrains.exposed.sql.tests.TestDB | ||
| import org.jetbrains.exposed.sql.tests.shared.Category | ||
| import org.jetbrains.exposed.sql.tests.shared.DEFAULT_CATEGORY_ID | ||
| import org.jetbrains.exposed.sql.tests.shared.Item | ||
| import org.jetbrains.exposed.sql.tests.shared.assertEquals | ||
| import org.jetbrains.exposed.sql.transactions.transaction | ||
| import org.junit.Assume | ||
| import org.junit.Test | ||
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| class ForeignKeyConstraintTests : DatabaseTestsBase() { | ||
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| @Test | ||
| fun `test ON DELETE SET DEFAULT for databases that support it without SQLite`() { | ||
| withDb(excludeSettings = listOf(TestDB.MARIADB, TestDB.MYSQL, TestDB.SQLITE)) { | ||
| testOnDeleteSetDefault() | ||
| } | ||
| } | ||
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| @Test | ||
| fun `test ON DELETE SET DEFAULT for SQLite`() { | ||
| Assume.assumeTrue(TestDB.SQLITE in TestDB.enabledInTests()) | ||
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| transaction(Database.connect("jdbc:sqlite:file:test?mode=memory&cache=shared&foreign_keys=on", user = "root", driver = "org.sqlite.JDBC")) { | ||
| testOnDeleteSetDefault() | ||
| } | ||
| } | ||
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| private fun Transaction.testOnDeleteSetDefault() { | ||
| SchemaUtils.create(Category, Item) | ||
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| Category.insert { | ||
| it[id] = DEFAULT_CATEGORY_ID | ||
| it[name] = "Default" | ||
| } | ||
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| val saladsId = 1 | ||
| Category.insert { | ||
| it[id] = saladsId | ||
| it[name] = "Salads" | ||
| } | ||
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| val tabboulehId = 0 | ||
| Item.insert { | ||
| it[id] = tabboulehId | ||
| it[name] = "Tabbouleh" | ||
| it[categoryId] = saladsId | ||
| } | ||
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| assertEquals( | ||
| saladsId, | ||
| Item.select { Item.id eq tabboulehId }.single().also { | ||
| println("SELECT result = $it") | ||
| }[Item.categoryId] | ||
| ) | ||
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| Category.deleteWhere { id eq saladsId } | ||
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| assertEquals( | ||
| DEFAULT_CATEGORY_ID, | ||
| Item.select { Item.id eq tabboulehId }.single()[Item.categoryId] | ||
| ) | ||
| } | ||
| } |