website/vendor/illuminate/database/Schema/Grammars/MySqlGrammar.php

653 lines
15 KiB
PHP
Executable File

<?php namespace Illuminate\Database\Schema\Grammars;
use Illuminate\Support\Fluent;
use Illuminate\Database\Connection;
use Illuminate\Database\Schema\Blueprint;
class MySqlGrammar extends Grammar {
/**
* The possible column modifiers.
*
* @var array
*/
protected $modifiers = array('Unsigned', 'Nullable', 'Default', 'Increment', 'Comment', 'After');
/**
* The possible column serials.
*
* @var array
*/
protected $serials = array('bigInteger', 'integer', 'mediumInteger', 'smallInteger', 'tinyInteger');
/**
* Compile the query to determine the list of tables.
*
* @return string
*/
public function compileTableExists()
{
return 'select * from information_schema.tables where table_schema = ? and table_name = ?';
}
/**
* Compile the query to determine the list of columns.
*
* @return string
*/
public function compileColumnExists()
{
return "select column_name from information_schema.columns where table_schema = ? and table_name = ?";
}
/**
* Compile a create table command.
*
* @param \Illuminate\Database\Schema\Blueprint $blueprint
* @param \Illuminate\Support\Fluent $command
* @param \Illuminate\Database\Connection $connection
* @return string
*/
public function compileCreate(Blueprint $blueprint, Fluent $command, Connection $connection)
{
$columns = implode(', ', $this->getColumns($blueprint));
$sql = 'create table '.$this->wrapTable($blueprint)." ($columns)";
// Once we have the primary SQL, we can add the encoding option to the SQL for
// the table. Then, we can check if a storage engine has been supplied for
// the table. If so, we will add the engine declaration to the SQL query.
$sql = $this->compileCreateEncoding($sql, $connection);
if (isset($blueprint->engine))
{
$sql .= ' engine = '.$blueprint->engine;
}
return $sql;
}
/**
* Append the character set specifications to a command.
*
* @param string $sql
* @param \Illuminate\Database\Connection $connection
* @return string
*/
protected function compileCreateEncoding($sql, Connection $connection)
{
if ( ! is_null($charset = $connection->getConfig('charset')))
{
$sql .= ' default character set '.$charset;
}
if ( ! is_null($collation = $connection->getConfig('collation')))
{
$sql .= ' collate '.$collation;
}
return $sql;
}
/**
* Compile an add column command.
*
* @param \Illuminate\Database\Schema\Blueprint $blueprint
* @param \Illuminate\Support\Fluent $command
* @return string
*/
public function compileAdd(Blueprint $blueprint, Fluent $command)
{
$table = $this->wrapTable($blueprint);
$columns = $this->prefixArray('add', $this->getColumns($blueprint));
return 'alter table '.$table.' '.implode(', ', $columns);
}
/**
* Compile a primary key command.
*
* @param \Illuminate\Database\Schema\Blueprint $blueprint
* @param \Illuminate\Support\Fluent $command
* @return string
*/
public function compilePrimary(Blueprint $blueprint, Fluent $command)
{
$command->name(null);
return $this->compileKey($blueprint, $command, 'primary key');
}
/**
* Compile a unique key command.
*
* @param \Illuminate\Database\Schema\Blueprint $blueprint
* @param \Illuminate\Support\Fluent $command
* @return string
*/
public function compileUnique(Blueprint $blueprint, Fluent $command)
{
return $this->compileKey($blueprint, $command, 'unique');
}
/**
* Compile a plain index key command.
*
* @param \Illuminate\Database\Schema\Blueprint $blueprint
* @param \Illuminate\Support\Fluent $command
* @return string
*/
public function compileIndex(Blueprint $blueprint, Fluent $command)
{
return $this->compileKey($blueprint, $command, 'index');
}
/**
* Compile an index creation command.
*
* @param \Illuminate\Database\Schema\Blueprint $blueprint
* @param \Illuminate\Support\Fluent $command
* @param string $type
* @return string
*/
protected function compileKey(Blueprint $blueprint, Fluent $command, $type)
{
$columns = $this->columnize($command->columns);
$table = $this->wrapTable($blueprint);
return "alter table {$table} add {$type} {$command->index}($columns)";
}
/**
* Compile a drop table command.
*
* @param \Illuminate\Database\Schema\Blueprint $blueprint
* @param \Illuminate\Support\Fluent $command
* @return string
*/
public function compileDrop(Blueprint $blueprint, Fluent $command)
{
return 'drop table '.$this->wrapTable($blueprint);
}
/**
* Compile a drop table (if exists) command.
*
* @param \Illuminate\Database\Schema\Blueprint $blueprint
* @param \Illuminate\Support\Fluent $command
* @return string
*/
public function compileDropIfExists(Blueprint $blueprint, Fluent $command)
{
return 'drop table if exists '.$this->wrapTable($blueprint);
}
/**
* Compile a drop column command.
*
* @param \Illuminate\Database\Schema\Blueprint $blueprint
* @param \Illuminate\Support\Fluent $command
* @return string
*/
public function compileDropColumn(Blueprint $blueprint, Fluent $command)
{
$columns = $this->prefixArray('drop', $this->wrapArray($command->columns));
$table = $this->wrapTable($blueprint);
return 'alter table '.$table.' '.implode(', ', $columns);
}
/**
* Compile a drop primary key command.
*
* @param \Illuminate\Database\Schema\Blueprint $blueprint
* @param \Illuminate\Support\Fluent $command
* @return string
*/
public function compileDropPrimary(Blueprint $blueprint, Fluent $command)
{
return 'alter table '.$this->wrapTable($blueprint).' drop primary key';
}
/**
* Compile a drop unique key command.
*
* @param \Illuminate\Database\Schema\Blueprint $blueprint
* @param \Illuminate\Support\Fluent $command
* @return string
*/
public function compileDropUnique(Blueprint $blueprint, Fluent $command)
{
$table = $this->wrapTable($blueprint);
return "alter table {$table} drop index {$command->index}";
}
/**
* Compile a drop index command.
*
* @param \Illuminate\Database\Schema\Blueprint $blueprint
* @param \Illuminate\Support\Fluent $command
* @return string
*/
public function compileDropIndex(Blueprint $blueprint, Fluent $command)
{
$table = $this->wrapTable($blueprint);
return "alter table {$table} drop index {$command->index}";
}
/**
* Compile a drop foreign key command.
*
* @param \Illuminate\Database\Schema\Blueprint $blueprint
* @param \Illuminate\Support\Fluent $command
* @return string
*/
public function compileDropForeign(Blueprint $blueprint, Fluent $command)
{
$table = $this->wrapTable($blueprint);
return "alter table {$table} drop foreign key {$command->index}";
}
/**
* Compile a rename table command.
*
* @param \Illuminate\Database\Schema\Blueprint $blueprint
* @param \Illuminate\Support\Fluent $command
* @return string
*/
public function compileRename(Blueprint $blueprint, Fluent $command)
{
$from = $this->wrapTable($blueprint);
return "rename table {$from} to ".$this->wrapTable($command->to);
}
/**
* Create the column definition for a char type.
*
* @param \Illuminate\Support\Fluent $column
* @return string
*/
protected function typeChar(Fluent $column)
{
return "char({$column->length})";
}
/**
* Create the column definition for a string type.
*
* @param \Illuminate\Support\Fluent $column
* @return string
*/
protected function typeString(Fluent $column)
{
return "varchar({$column->length})";
}
/**
* Create the column definition for a text type.
*
* @param \Illuminate\Support\Fluent $column
* @return string
*/
protected function typeText(Fluent $column)
{
return 'text';
}
/**
* Create the column definition for a medium text type.
*
* @param \Illuminate\Support\Fluent $column
* @return string
*/
protected function typeMediumText(Fluent $column)
{
return 'mediumtext';
}
/**
* Create the column definition for a long text type.
*
* @param \Illuminate\Support\Fluent $column
* @return string
*/
protected function typeLongText(Fluent $column)
{
return 'longtext';
}
/**
* Create the column definition for a big integer type.
*
* @param \Illuminate\Support\Fluent $column
* @return string
*/
protected function typeBigInteger(Fluent $column)
{
return 'bigint';
}
/**
* Create the column definition for a integer type.
*
* @param \Illuminate\Support\Fluent $column
* @return string
*/
protected function typeInteger(Fluent $column)
{
return 'int';
}
/**
* Create the column definition for a medium integer type.
*
* @param \Illuminate\Support\Fluent $column
* @return string
*/
protected function typeMediumInteger(Fluent $column)
{
return 'mediumint';
}
/**
* Create the column definition for a tiny integer type.
*
* @param \Illuminate\Support\Fluent $column
* @return string
*/
protected function typeTinyInteger(Fluent $column)
{
return 'tinyint';
}
/**
* Create the column definition for a small integer type.
*
* @param \Illuminate\Support\Fluent $column
* @return string
*/
protected function typeSmallInteger(Fluent $column)
{
return 'smallint';
}
/**
* Create the column definition for a float type.
*
* @param \Illuminate\Support\Fluent $column
* @return string
*/
protected function typeFloat(Fluent $column)
{
return $this->typeDouble($column);
}
/**
* Create the column definition for a double type.
*
* @param \Illuminate\Support\Fluent $column
* @return string
*/
protected function typeDouble(Fluent $column)
{
if ($column->total && $column->places)
{
return "double({$column->total}, {$column->places})";
}
return 'double';
}
/**
* Create the column definition for a decimal type.
*
* @param \Illuminate\Support\Fluent $column
* @return string
*/
protected function typeDecimal(Fluent $column)
{
return "decimal({$column->total}, {$column->places})";
}
/**
* Create the column definition for a boolean type.
*
* @param \Illuminate\Support\Fluent $column
* @return string
*/
protected function typeBoolean(Fluent $column)
{
return 'tinyint(1)';
}
/**
* Create the column definition for an enum type.
*
* @param \Illuminate\Support\Fluent $column
* @return string
*/
protected function typeEnum(Fluent $column)
{
return "enum('".implode("', '", $column->allowed)."')";
}
/**
* Create the column definition for a json type.
*
* @param \Illuminate\Support\Fluent $column
* @return string
*/
protected function typeJson(Fluent $column)
{
return 'text';
}
/**
* Create the column definition for a jsonb type.
*
* @param \Illuminate\Support\Fluent $column
* @return string
*/
protected function typeJsonb(Fluent $column)
{
return "text";
}
/**
* Create the column definition for a date type.
*
* @param \Illuminate\Support\Fluent $column
* @return string
*/
protected function typeDate(Fluent $column)
{
return 'date';
}
/**
* Create the column definition for a date-time type.
*
* @param \Illuminate\Support\Fluent $column
* @return string
*/
protected function typeDateTime(Fluent $column)
{
return 'datetime';
}
/**
* Create the column definition for a date-time type.
*
* @param \Illuminate\Support\Fluent $column
* @return string
*/
protected function typeDateTimeTz(Fluent $column)
{
return 'datetime';
}
/**
* Create the column definition for a time type.
*
* @param \Illuminate\Support\Fluent $column
* @return string
*/
protected function typeTime(Fluent $column)
{
return 'time';
}
/**
* Create the column definition for a time type.
*
* @param \Illuminate\Support\Fluent $column
* @return string
*/
protected function typeTimeTz(Fluent $column)
{
return 'time';
}
/**
* Create the column definition for a timestamp type.
*
* @param \Illuminate\Support\Fluent $column
* @return string
*/
protected function typeTimestamp(Fluent $column)
{
if ( ! $column->nullable) return 'timestamp default 0';
return 'timestamp';
}
/**
* Create the column definition for a timestamp type.
*
* @param \Illuminate\Support\Fluent $column
* @return string
*/
protected function typeTimestampTz(Fluent $column)
{
if ( ! $column->nullable) return 'timestamp default 0';
return 'timestamp';
}
/**
* Create the column definition for a binary type.
*
* @param \Illuminate\Support\Fluent $column
* @return string
*/
protected function typeBinary(Fluent $column)
{
return 'blob';
}
/**
* Get the SQL for an unsigned column modifier.
*
* @param \Illuminate\Database\Schema\Blueprint $blueprint
* @param \Illuminate\Support\Fluent $column
* @return string|null
*/
protected function modifyUnsigned(Blueprint $blueprint, Fluent $column)
{
if ($column->unsigned) return ' unsigned';
}
/**
* Get the SQL for a nullable column modifier.
*
* @param \Illuminate\Database\Schema\Blueprint $blueprint
* @param \Illuminate\Support\Fluent $column
* @return string|null
*/
protected function modifyNullable(Blueprint $blueprint, Fluent $column)
{
return $column->nullable ? ' null' : ' not null';
}
/**
* Get the SQL for a default column modifier.
*
* @param \Illuminate\Database\Schema\Blueprint $blueprint
* @param \Illuminate\Support\Fluent $column
* @return string|null
*/
protected function modifyDefault(Blueprint $blueprint, Fluent $column)
{
if ( ! is_null($column->default))
{
return " default ".$this->getDefaultValue($column->default);
}
}
/**
* Get the SQL for an auto-increment column modifier.
*
* @param \Illuminate\Database\Schema\Blueprint $blueprint
* @param \Illuminate\Support\Fluent $column
* @return string|null
*/
protected function modifyIncrement(Blueprint $blueprint, Fluent $column)
{
if (in_array($column->type, $this->serials) && $column->autoIncrement)
{
return ' auto_increment primary key';
}
}
/**
* Get the SQL for an "after" column modifier.
*
* @param \Illuminate\Database\Schema\Blueprint $blueprint
* @param \Illuminate\Support\Fluent $column
* @return string|null
*/
protected function modifyAfter(Blueprint $blueprint, Fluent $column)
{
if ( ! is_null($column->after))
{
return ' after '.$this->wrap($column->after);
}
}
/**
* Get the SQL for an "comment" column modifier.
*
* @param \Illuminate\Database\Schema\Blueprint $blueprint
* @param \Illuminate\Support\Fluent $column
* @return string|null
*/
protected function modifyComment(Blueprint $blueprint, Fluent $column)
{
if ( ! is_null($column->comment))
{
return ' comment "'.$column->comment.'"';
}
}
/**
* Wrap a single string in keyword identifiers.
*
* @param string $value
* @return string
*/
protected function wrapValue($value)
{
if ($value === '*') return $value;
return '`'.str_replace('`', '``', $value).'`';
}
}