In Laravel 6’s database migration, Doctrine\dbal\Exception : unknown database type enum requested when updating field properties, Doctrine\DBAL\Platforms\MySQL57Platform May not support it.
1. Doctrine\dbal\exception : unknown database type enum requested, doctrine\dbal\platforms\mysql57platform may not support it.. as shown in Figure 1
Figure 1
PS E:\wwwroot\object> php artisan module:migrate ThemeStoreDB
Migrating: 2022_12_08_173303_alter_theme_store_theme_version_semantic_on_theme_installation_version_preset_table
Doctrine\DBAL\Exception : Unknown database type enum requested, Doctrine\DBAL\Platforms\MySQL57Platform may not support it.
at E:\wwwroot\object\vendor\doctrine\dbal\lib\Doctrine\DBAL\Platforms\AbstractPlatform.php:454
450|
451| $dbType = strtolower($dbType);
452|
453| if (! isset($this->doctrineTypeMapping[$dbType])) {
> 454| throw new Exception(
455| 'Unknown database type ' . $dbType . ' requested, ' . static::class . ' may not support it.'
456| );
457| }
458|
Exception trace:
1 Doctrine\DBAL\Platforms\AbstractPlatform::getDoctrineTypeMapping("enum")
E:\wwwroot\object\vendor\doctrine\dbal\lib\Doctrine\DBAL\Schema\MySqlSchemaManager.php:134
2 Doctrine\DBAL\Schema\MySqlSchemaManager::_getPortableTableColumnDefinition()
E:\wwwroot\object\vendor\doctrine\dbal\lib\Doctrine\DBAL\Schema\AbstractSchemaManager.php:820
Please use the argument -v to see more details.
2. View the migration file, enum does not exist in the updated field type
/**
* Run the migrations.
*
* @return void
*/
public function up()
{
Schema::table('theme_installation_version_preset', function (Blueprint $table) {
$table->string('theme_store_theme_version_semantic', 64)->comment('主题商店的主题版本的语义化')->change();
});
}
3. The reason for the final determination may be that in the table involved in this migration file, the type of other fields is enum. as shown in Figure 2
Figure 2
4. Reference:https://www.shuijingwanwq.com/2022/06/02/6483/, use db::statement. The migration was successful. as shown in Figure 3
Figure 3
/**
* Run the migrations.
*
* @return void
*/
public function up()
{
$fullTableName = DB::connection()->getTablePrefix() . 'theme_installation_version_preset';
DB::statement("ALTER TABLE $fullTableName modify theme_store_theme_version_semantic varchar(64) COLLATE utf8mb4_unicode_ci NOT NULL COMMENT '主题商店的主题版本的语义化'");
}
