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