PHP Class CI_DB_postgre_driver, TastyIgniter

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

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

Author: ExpressionEngine Dev Team

Inheritance: extends CI_DB

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Public Properties

Property	Type	Description
$dbdriver	string	Database driver
$schema	string	Database schema

Protected Properties

Property	Type	Description
$_random_keyword	array	ORDER BY random keyword

Public Methods

Method	Description
__construct ( array $params ) : void	Class constructor
affected_rows ( ) : integer	Affected Rows
db_connect ( boolean $persistent = FALSE ) : resource	Database connection
error ( ) : array	Error
escape ( string $str ) : mixed	"Smart" Escape String
field_data ( string $table ) : array	Returns an object with field data
insert_id ( ) : string	Insert ID
is_write_type ( $sql ) : boolean	Determines if a query is a "write" type.
order_by ( string $orderby, string $direction = '', boolean $escape = NULL ) : object	ORDER BY
reconnect ( ) : void	Reconnect
version ( ) : string	Database version number

Protected Methods

Method	Description
_close ( ) : void	Close DB Connection
_db_set_charset ( string $charset ) : boolean	Set client character set
_delete ( string $table ) : string	Delete statement
_escape_str ( $str ) : string	Platform-dependant string escape
_execute ( string $sql ) : resource	Execute the query
_limit ( string $sql ) : string	LIMIT
_list_columns ( string $table = '' ) : string	List column query
_list_tables ( boolean $prefix_limit = FALSE ) : string	Show table query
_trans_begin ( ) : boolean	Begin Transaction
_trans_commit ( ) : boolean	Commit Transaction
_trans_rollback ( ) : boolean	Rollback Transaction
_update ( string $table, array $values ) : string	Update statement
_update_batch ( string $table, array $values, string $index ) : string	Update_Batch statement

Method Details

__construct() public method

Creates a DSN string to be used for db_connect() and db_pconnect()

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

_close() protected method

Close DB Connection

protected _close ( ) : void
return	void

_db_set_charset() protected method

Set client character set

protected _db_set_charset ( string $charset ) : boolean
$charset	string
return	boolean

_delete() protected method

Generates a platform-specific delete string from the supplied data

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

_escape_str() protected method

Platform-dependant string escape

protected _escape_str ( $str ) : string
return	string

_execute() protected method

Execute the query

protected _execute ( string $sql ) : resource
$sql	string	an SQL query
return	resource

_limit() protected method

Generates a platform-specific LIMIT clause

protected _limit ( string $sql ) : string
$sql	string	SQL Query
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

_trans_begin() protected method

Begin Transaction

protected _trans_begin ( ) : boolean
return	boolean

_trans_commit() protected method

Commit Transaction

protected _trans_commit ( ) : boolean
return	boolean

_trans_rollback() protected method

Rollback Transaction

protected _trans_rollback ( ) : boolean
return	boolean

_update() protected method

Generates a platform-specific update string from the supplied data

protected _update ( string $table, array $values ) : string
$table	string
$values	array
return	string

_update_batch() protected method

Generates a platform-specific batch update string from the supplied data

protected _update_batch ( string $table, array $values, string $index ) : string
$table	string	Table name
$values	array	Update data
$index	string	WHERE key
return	string

affected_rows() public method

Affected Rows

public affected_rows ( ) : integer
return	integer

db_connect() public method

Database connection

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

error() public method

Returns an array containing code and message of the last database error that has occured.

public error ( ) : array
return	array

escape() public method

Escapes data based on type

public escape ( string $str ) : mixed
$str	string
return	mixed

field_data() public method

Returns an object with field data

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

insert_id() public method

Insert ID

public insert_id ( ) : string
return	string

is_write_type() public method

Determines if a query is a "write" type.

public is_write_type ( $sql ) : boolean
return	boolean

order_by() public method

ORDER BY

public order_by ( string $orderby, string $direction = '', boolean $escape = NULL ) : object
$orderby	string
$direction	string	ASC, DESC or RANDOM
$escape	boolean
return	object

reconnect() public method

Keep / reestablish the db connection if no queries have been sent for a length of time exceeding the server's idle timeout

public reconnect ( ) : void
return	void

version() public method

Database version number

public version ( ) : string
return	string

Property Details

$_random_keyword protected_oe property

ORDER BY random keyword

protected array $_random_keyword
return	array

$dbdriver public_oe property

Database driver

public string $dbdriver
return	string

$schema public_oe property

Database schema

public string $schema
return	string