restore_step Class Reference

Abstract class defining the needed stuf for one restore step. More...

Inheritance diagram for restore_step:

Public Member Functions
	__construct ($name, $task=null)
	Constructor - instantiates one object of this class.
	apply_date_offset ($value)
	Apply course startdate offset based in original course startdate and course_offset_startdate setting Note we are using one static cache here, but by restoreid, so it's ok for concurrence/multiple executions in the same request. More...
	decrypt ($value)
	Returns symmetric-key AES-256 decryption of base64 encoded contents. More...
	destroy ()
	Destroy all circular references. More...
	execute ()
	This function will perform all the actions necessary to achieve the execution of the plan/part/task.
	get_name ()
	log ($message, $level, $a=null, $depth=null, $display=false)
	This function will be responsible for handling the params, and to call to the corresponding logger->process() once all modifications in params have been performed.
	set_task ($task)

Protected Member Functions
	get_basepath ()
	get_courseid ()
	get_logger ()
	get_restoreid ()
	get_setting ($name)
	get_setting_value ($name)
	get_settings ()
	Protected API starts here.
	setting_exists ($name)

Protected Attributes
	$name
	$task

Detailed Description

Abstract class defining the needed stuf for one restore step.

TODO: Finish phpdocs

Member Function Documentation

apply_date_offset()

restore_step::apply_date_offset

(

$value

)

Apply course startdate offset based in original course startdate and course_offset_startdate setting Note we are using one static cache here, but by restoreid, so it's ok for concurrence/multiple executions in the same request.

Note: The policy is to roll date only for configurations and not for user data. see MDL-9367.

Parameters

int

$value

Time value (seconds since epoch), or empty for nothing

Return values

int	Time value after applying the date offset, or empty for nothing

decrypt()

restore_step::decrypt

(

$value

)

Returns symmetric-key AES-256 decryption of base64 encoded contents.

This method is used in restore operations to decrypt contents encrypted with encrypted_final_element automatically decoding (base64) and decrypting contents using the key stored in backup_encryptkey config.

Requires openssl, cipher availability, and key existence (backup automatically sets it if missing). Integrity is provided via HMAC.

Parameters

string

$value

encrypted_final_element value to decode and decrypt.

Return values

string|null

decoded and decrypted value or null if the operation can not be performed.

destroy()

base_step::destroy ( )

inherited

Destroy all circular references.

It helps PHP 5.2 a lot!

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

• backup/util/plan/restore_step.class.php