database_mover Class Reference

Inheritance diagram for database_mover:

Public Member Functions
	__construct (moodle_database $mdb_source, moodle_database $mdb_target, $check_schema=true, progress_trace $feedback=null)
	Object constructor. More...
	begin_database_export ($version, $release, $timestamp, $description)
	Callback function. More...
	begin_table_export (xmldb_table $table)
	Callback function. More...
	export_database ($description=null)
	Generic method to export the database. More...
	export_table_data (xmldb_table $table, $data)
	Callback function. More...
	finish_database_export ()
	Callback function. More...
	finish_table_export (xmldb_table $table)
	Callback function. More...
	set_transaction_mode ($mode)
	How to use transactions during the transfer. More...

Protected Attributes
bool	$check_schema
	Boolean flag - whether or not to check that XML database schema matches the RDBMS database schema before exporting (used by. More...
progress_trace	$feedback
	Progress tracing object.
database_importer	$importer
	Importer object used to transfer data.
database_manager	$manager
	Database manager of the source database (a. More...
moodle_database	$mdb
	Connection to the source database (a. More...
xmldb_structure	$schema
	Source database schema in XMLDB format (a. More...

Constructor & Destructor Documentation

__construct()

database_mover::__construct	(	moodle_database	$mdb_source,
		moodle_database	$mdb_target,
			$check_schema = true,
		progress_trace	$feedback = null
	)

Object constructor.

Parameters

moodle_database

$mdb_source

Connection to the source database (a

See also

moodle_database object).

Parameters

moodle_database

$mdb_target

Connection to the target database (a

See also

moodle_database object).

Parameters

boolean	$check_schema	- whether or not to check that XML database schema matches the RDBMS database schema before exporting (used by
progress_trace	$feedback	Progress tracing object

See also

export_database).

Member Function Documentation

begin_database_export()

database_mover::begin_database_export	(		$version,
			$release,
			$timestamp,
			$description
	)

Callback function.

Calls importer's begin_database_import callback method.

Parameters

float	$version	the version of the system which generating the data
string	$release	moodle release info
string	$timestamp	the timestamp of the data (in ISO 8601) format.
string	$description	a user description of the data.

Return values

void

Reimplemented from database_exporter.

begin_table_export()

database_mover::begin_table_export

(

xmldb_table

$table

)

Callback function.

Calls importer's begin_table_import callback method.

Parameters

xmldb_table

$table

- XMLDB object for the exported table

Return values

void

Reimplemented from database_exporter.

export_database()

database_exporter::export_database (   $description = null )

inherited

Generic method to export the database.

It checks the schema (if

See also

$check_schema is true), queries the database and calls appropriate callbacks.

Exceptions

dbtransfer_exception

if any checking (e.g. database schema) fails

Parameters

string

$description

a user description of the data.

Reimplemented in string_xml_database_exporter, and file_xml_database_exporter.

export_table_data()

database_mover::export_table_data	(	xmldb_table	$table,
			$data
	)

Callback function.

Calls importer's import_table_data callback method.

Parameters

xmldb_table	$table	- XMLDB object of the table from which data was retrieved
object	$data	- data object (fields and values from record)

Return values

void

Reimplemented from database_exporter.

finish_database_export()

database_mover::finish_database_export

(

)

Callback function.

Calls importer's finish_database_import callback method.

Return values

void

Reimplemented from database_exporter.

finish_table_export()

database_mover::finish_table_export

(

xmldb_table

$table

)

Callback function.

Calls importer's finish_table_import callback method.

Parameters

xmldb_table

$table

- XMLDB object for the exported table

Return values

void

Reimplemented from database_exporter.

set_transaction_mode()

database_mover::set_transaction_mode

(

$mode

)

How to use transactions during the transfer.

Parameters

string

$mode

'pertable', 'allinone' or 'none'.

Member Data Documentation

$check_schema

bool database_exporter::$check_schema

protectedinherited

Boolean flag - whether or not to check that XML database schema matches the RDBMS database schema before exporting (used by.

See also

export_database).

$manager

database_manager database_exporter::$manager

protectedinherited

Database manager of the source database (a.

See also

database_manager object).

$mdb

moodle_database database_exporter::$mdb

protectedinherited

Connection to the source database (a.

See also

moodle_database object).

$schema

xmldb_structure database_exporter::$schema

protectedinherited

Source database schema in XMLDB format (a.

See also

xmldb_structure object).

---

The documentation for this class was generated from the following file:

• lib/dtl/database_mover.php