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<?php
namespace Illuminate\Database\Schema\Grammars;
use Doctrine\DBAL\Schema\AbstractSchemaManager as SchemaManager;
use Doctrine\DBAL\Schema\Column;
use Doctrine\DBAL\Schema\TableDiff;
use Illuminate\Database\Connection;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Support\Fluent;
class RenameColumn
{
/**
* Compile a rename column command.
*
* @param \Illuminate\Database\Schema\Grammars\Grammar $grammar
* @param \Illuminate\Database\Schema\Blueprint $blueprint
* @param \Illuminate\Support\Fluent $command
* @param \Illuminate\Database\Connection $connection
* @return array
*/
public static function compile(Grammar $grammar, Blueprint $blueprint, Fluent $command, Connection $connection)
{
$schema = $connection->getDoctrineSchemaManager();
$databasePlatform = $schema->getDatabasePlatform();
$databasePlatform->registerDoctrineTypeMapping('enum', 'string');
$column = $connection->getDoctrineColumn(
$grammar->getTablePrefix().$blueprint->getTable(), $command->from
);
return (array) $databasePlatform->getAlterTableSQL(static::getRenamedDiff(
$grammar, $blueprint, $command, $column, $schema
));
}
/**
* Get a new column instance with the new column name.
*
* @param \Illuminate\Database\Schema\Grammars\Grammar $grammar
* @param \Illuminate\Database\Schema\Blueprint $blueprint
* @param \Illuminate\Support\Fluent $command
* @param \Doctrine\DBAL\Schema\Column $column
* @param \Doctrine\DBAL\Schema\AbstractSchemaManager $schema
* @return \Doctrine\DBAL\Schema\TableDiff
*/
protected static function getRenamedDiff(Grammar $grammar, Blueprint $blueprint, Fluent $command, Column $column, SchemaManager $schema)
{
return static::setRenamedColumns(
$grammar->getDoctrineTableDiff($blueprint, $schema), $command, $column
);
}
/**
* Set the renamed columns on the table diff.
*
* @param \Doctrine\DBAL\Schema\TableDiff $tableDiff
* @param \Illuminate\Support\Fluent $command
* @param \Doctrine\DBAL\Schema\Column $column
* @return \Doctrine\DBAL\Schema\TableDiff
*/
protected static function setRenamedColumns(TableDiff $tableDiff, Fluent $command, Column $column)
{
$tableDiff->renamedColumns = [
$command->from => new Column($command->to, $column->getType(), self::getWritableColumnOptions($column)),
];
return $tableDiff;
}
/**
* Get the writable column options.
*
* @param \Doctrine\DBAL\Schema\Column $column
* @return array
*/
private static function getWritableColumnOptions(Column $column)
{
return array_filter($column->toArray(), function (string $name) use ($column) {
return method_exists($column, 'set'.$name);
}, ARRAY_FILTER_USE_KEY);
}
}
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