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<?php
namespace Illuminate\Database;
use Exception;
use Illuminate\Database\Query\Grammars\PostgresGrammar as QueryGrammar;
use Illuminate\Database\Query\Processors\PostgresProcessor;
use Illuminate\Database\Schema\Grammars\PostgresGrammar as SchemaGrammar;
use Illuminate\Database\Schema\PostgresBuilder;
use Illuminate\Database\Schema\PostgresSchemaState;
use Illuminate\Filesystem\Filesystem;
class PostgresConnection extends Connection
{
/**
* {@inheritdoc}
*/
public function getDriverTitle()
{
return 'PostgreSQL';
}
/**
* Escape a binary value for safe SQL embedding.
*
* @param string $value
* @return string
*/
protected function escapeBinary($value)
{
$hex = bin2hex($value);
return "'\x{$hex}'::bytea";
}
/**
* Escape a bool value for safe SQL embedding.
*
* @param bool $value
* @return string
*/
protected function escapeBool($value)
{
return $value ? 'true' : 'false';
}
/**
* Determine if the given database exception was caused by a unique constraint violation.
*
* @param \Exception $exception
* @return bool
*/
protected function isUniqueConstraintError(Exception $exception)
{
return '23505' === $exception->getCode();
}
/**
* Get the default query grammar instance.
*
* @return \Illuminate\Database\Query\Grammars\PostgresGrammar
*/
protected function getDefaultQueryGrammar()
{
return new QueryGrammar($this);
}
/**
* Get a schema builder instance for the connection.
*
* @return \Illuminate\Database\Schema\PostgresBuilder
*/
public function getSchemaBuilder()
{
if (is_null($this->schemaGrammar)) {
$this->useDefaultSchemaGrammar();
}
return new PostgresBuilder($this);
}
/**
* Get the default schema grammar instance.
*
* @return \Illuminate\Database\Schema\Grammars\PostgresGrammar
*/
protected function getDefaultSchemaGrammar()
{
return new SchemaGrammar($this);
}
/**
* Get the schema state for the connection.
*
* @param \Illuminate\Filesystem\Filesystem|null $files
* @param callable|null $processFactory
* @return \Illuminate\Database\Schema\PostgresSchemaState
*/
public function getSchemaState(?Filesystem $files = null, ?callable $processFactory = null)
{
return new PostgresSchemaState($this, $files, $processFactory);
}
/**
* Get the default post processor instance.
*
* @return \Illuminate\Database\Query\Processors\PostgresProcessor
*/
protected function getDefaultPostProcessor()
{
return new PostgresProcessor;
}
}