PHP Class CI_DB_pdo_mysql_driver, TastyIgniter

Note: _DB is an extender class that the app controller creates dynamically based on whether the query builder class is being used or not.

See link: https://codeigniter.com/user_guide/database/

Author: EllisLab Dev Team

Inheritance: extends CI_DB_pdo_driver

显示文件 Open project: tastyigniter/tastyigniter

Public Properties

Property	Type	Description
$compress	boolean	Compression flag
$stricton	boolean	Whether we're running in strict SQL mode.
$subdriver	string	Sub-driver

Protected Properties

Property	Type	Description
$_escape_char	string	Identifier escape character

Public Methods

Method	Description
__construct ( array $params ) : void	Class constructor
db_connect ( boolean $persistent = FALSE ) : object	Database connection
db_select ( string $database = '' ) : boolean	Select the database
field_data ( string $table ) : array	Returns an object with field data

Protected Methods

Method	Description
_from_tables ( ) : string	FROM tables
_list_columns ( string $table = '' ) : string	Show column query
_list_tables ( boolean $prefix_limit = FALSE ) : string	Show table query
_truncate ( string $table ) : string	Truncate statement

Method Details

__construct() public method

Builds the DSN if not already set.

public __construct ( array $params ) : void
$params	array
return	void

_from_tables() protected method

Groups tables in FROM clauses if needed, so there is no confusion about operator precedence.

protected _from_tables ( ) : string
return	string

_list_columns() protected method

Generates a platform-specific query string so that the column names can be fetched

protected _list_columns ( string $table = '' ) : string
$table	string
return	string

_list_tables() protected method

Generates a platform-specific query string so that the table names can be fetched

protected _list_tables ( boolean $prefix_limit = FALSE ) : string
$prefix_limit	boolean
return	string

_truncate() protected method

Generates a platform-specific truncate string from the supplied data If the database does not support the TRUNCATE statement, then this method maps to 'DELETE FROM table'

protected _truncate ( string $table ) : string
$table	string
return	string

db_connect() public method

Database connection

public db_connect ( boolean $persistent = FALSE ) : object
$persistent	boolean
return	object

db_select() public method

Select the database

public db_select ( string $database = '' ) : boolean
$database	string
return	boolean

field_data() public method

Returns an object with field data

public field_data ( string $table ) : array
$table	string
return	array

Property Details

$_escape_char protected_oe property

Identifier escape character

protected string $_escape_char
return	string

$compress public_oe property

Compression flag

public bool $compress
return	boolean

$stricton public_oe property

Whether we're running in strict SQL mode.

public bool $stricton
return	boolean

$subdriver public_oe property

Sub-driver

public string $subdriver
return	string