PreMcrSchemaOverride.php

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<?php
namespace MediaWiki\Tests\Revision;
 
use Wikimedia\Rdbms\IMaintainableDatabase;
use MediaWiki\DB\PatchFileLocation;
 
trait PreMcrSchemaOverride {
 
    use PatchFileLocation;
    use McrSchemaDetection;
 
    protected function getMcrMigrationStage() {
        return MIGRATION_OLD;
    }
 
    protected function getMcrTablesToReset() {
        return [];
    }
 
    protected function getSchemaOverrides( IMaintainableDatabase $db ) {
        $overrides = [
            'scripts' => [],
            'drop' => [],
            'create' => [],
            'alter' => [],
        ];
 
        if ( $this->hasMcrTables( $db ) ) {
            $overrides['drop'] = [ 'slots', 'content', 'slot_roles', 'content_models', ];
            $overrides['scripts'][] = $this->getSqlPatchPath( $db, '/drop-mcr-tables', __DIR__ );
        }
 
        if ( !$this->hasPreMcrFields( $db ) ) {
            $overrides['alter'][] = 'revision';
            $overrides['scripts'][] = $this->getSqlPatchPath( $db, '/create-pre-mcr-fields', __DIR__ );
        }
 
        return $overrides;
    }
 
}