Class for exporting field data. More...

Inheritance diagram for mod_data\external\field_exporter:

Public Member Functions
	export (renderer_base $output)
	Function to export the renderer data in a format that is suitable for a mustache template. More...

Static Public Member Functions
static	format_properties ($properties)
	Recursively formats a given property definition with the default fields required. More...

static	get_create_structure ()
	Returns the create structure. More...

static	get_read_structure ()
	Returns the read structure. More...

static	get_update_structure ()
	Returns the update structure. More...

static	properties_definition ()
	Get the properties definition of this exporter used for create, and update structures. More...

static	read_properties_definition ()
	Get the read properties definition of this exporter. More...

Protected Member Functions
	get_format_parameters ($property)
	Get the format parameters. More...

	get_other_values (renderer_base $output)
	Get the additional values to inject while exporting. More...

Static Protected Member Functions
static	define_other_properties ()
	Return the list of additional properties used only for display. More...

static	define_properties ()
	Return the list of properties. More...

static	define_related ()
	Returns a list of objects that are related to this persistent. More...

static	get_context_structure ()
	Get the context structure. More...

static	get_format_field ($definitions, $property)
	Get the format field name. More...

static	get_format_structure ($property, $definition, $required=VALUE_REQUIRED)
	Get the format structure. More...

static	get_read_structure_from_properties ($properties, $required=VALUE_REQUIRED, $default=null)
	Returns the read structure from a set of properties (recursive). More...

Protected Attributes
stdClass array	$data = null
	The data of this exporter.

array	$related = array()
	$related List of related objects used to avoid DB queries.

Detailed Description

Class for exporting field data.

Copyright: 2017 Juan Leyva juan@.nosp@m.mood.nosp@m.le.co.nosp@m.m

License: http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

Member Function Documentation

◆ define_other_properties()

static core\external\exporter::define_other_properties ( )

staticprotectedinherited

Return the list of additional properties used only for display.

Additional properties are only ever used for the read structure, and during export of the persistent data.

The format of the array returned by this method has to match the structure defined in (). The display properties can however do some more fancy things. They can define 'multiple' => true to wrap values in an external_multiple_structure automatically - or they can define the type as a nested array of more properties in order to generate a nested external_single_structure.

You can specify an array of values by including a 'multiple' => true array value. This will result in a nested external_multiple_structure. E.g.

  'arrayofbools' => array(
      'type' => PARAM_BOOL,
      'multiple' => true
  ),

You can return a nested array in the type field, which will result in a nested external_single_structure. E.g. 'competency' => array( 'type' => competency_exporter::read_properties_definition() ),

Other properties can be specifically marked as optional, in which case they do not need to be included in the export in self::get_other_values(). This is useful when exporting a substructure which cannot be set as null due to webservices protocol constraints. E.g. 'competency' => array( 'type' => competency_exporter::read_properties_definition(), 'optional' => true ),

Return values

array

◆ define_properties()

static mod_data\external\field_exporter::define_properties ( )

staticprotected

Return the list of properties.

The format of the array returned by this method has to match the structure defined in (). Howewer you can add a new attribute "description" to describe the parameter for documenting the API.

Note that the type PARAM_TEXT should ONLY be used for strings which need to go through filters (multilang, etc...) and do not have a FORMAT_* associated to them. Typically strings passed through to format_string().

Other filtered strings which use a FORMAT_* constant (hear used with format_text) must be defined as PARAM_RAW.

Return values

array

Reimplemented from core\external\exporter.

◆ define_related()

static mod_data\external\field_exporter::define_related ( )

staticprotected

Returns a list of objects that are related to this persistent.

Only objects listed here can be cached in this object.

The class name can be suffixed:

with [] to indicate an array of values.
with ? to indicate that 'null' is allowed.

Return values

array of 'propertyname' => array('type' => classname, 'required' => true)

Reimplemented from core\external\exporter.

◆ export()

core\external\exporter::export ( renderer_base $output )

finalinherited

Function to export the renderer data in a format that is suitable for a mustache template.

This means raw records are generated as in to_record, but all strings are correctly passed through external_format_text (or external_format_string).

Parameters

renderer_base $output Used to do a final render of any components that need to be rendered for export.

Return values

stdClass

◆ format_properties()

static core\external\exporter::format_properties ( $properties )

staticfinalinherited

Recursively formats a given property definition with the default fields required.

Parameters

array $properties List of properties to format

Return values

array Formatted array

◆ get_context_structure()

static core\external\exporter::get_context_structure ( )

staticfinalprotectedinherited

Get the context structure.

Return values

external_single_structure

◆ get_create_structure()

static core\external\exporter::get_create_structure ( )

staticfinalinherited

Returns the create structure.

Return values

external_single_structure

◆ get_format_field()

static core\external\exporter::get_format_field	(	$definitions,
		$property
	)

staticfinalprotectedinherited

Get the format field name.

Parameters

array	$definitions	List of properties definitions.
string	$property	The name of the property that may have a format field.

Return values

bool|string False, or the name of the format property.

◆ get_format_parameters()

core\external\exporter::get_format_parameters ( $property )

finalprotectedinherited

Get the format parameters.

This method returns the parameters to use with the functions external_format_text(), and external_format_string(). To override the default parameters, you can define a protected method called 'get_format_parameters_for_<propertyName>'. For example, 'get_format_parameters_for_description', if your property is 'description'.

Your method must return an array containing any of the following keys:

context: The context to use. Defaults to $this->related['context'] if defined, else throws an exception.
component: The component to use with external_format_text(). Defaults to null.
filearea: The filearea to use with external_format_text(). Defaults to null.
itemid: The itemid to use with external_format_text(). Defaults to null.
options: An array of options accepted by external_format_text() or external_format_string(). Defaults to [].
striplinks: Whether to strip the links with external_format_string(). Defaults to true.

Parameters

string $property The property to get the parameters for.

Return values

array

◆ get_format_structure()

static core\external\exporter::get_format_structure	(	$property,
		$definition,
		$required = `VALUE_REQUIRED`
	)

staticfinalprotectedinherited

Get the format structure.

Parameters

string	$property	The name of the property on which the format applies.
array	$definition	The definition of the format property.
int	$required	Constant VALUE_*.

Return values

external_format_value

◆ get_other_values()

core\external\exporter::get_other_values ( renderer_base $output )

protectedinherited

Get the additional values to inject while exporting.

These are additional generated values that are not passed in through $data to the exporter. For a persistent exporter - these are generated values that do not exist in the persistent class. For your convenience the format_text or format_string functions do not need to be applied to PARAM_TEXT fields, it will be done automatically during export.

These values are only used when returning data via self::export(), they are not used when generating any of the different external structures.

Note: These must be defined in self::define_other_properties().

Parameters

renderer_base $output The renderer.

Return values

array Keys are the property names, values are their values.

◆ get_read_structure()

static core\external\exporter::get_read_structure ( )

staticfinalinherited

Returns the read structure.

Return values

external_single_structure

◆ get_read_structure_from_properties()

static core\external\exporter::get_read_structure_from_properties	(	$properties,
		$required = `VALUE_REQUIRED`,
		$default = `null`
	)

staticfinalprotectedinherited

Returns the read structure from a set of properties (recursive).

Parameters

array	$properties	The properties.
int	$required	Whether is required.
mixed	$default	The default value.

Return values

external_single_structure

◆ get_update_structure()

static core\external\exporter::get_update_structure ( )

staticfinalinherited

Returns the update structure.

This structure can never be included at the top level for an external function signature because it contains optional parameters.

Return values

external_single_structure

◆ properties_definition()

static core\external\exporter::properties_definition ( )

staticfinalinherited

Get the properties definition of this exporter used for create, and update structures.

The read structures are returned by: self::read_properties_definition().

Return values

array Keys are the property names, and value their definition.

◆ read_properties_definition()

static core\external\exporter::read_properties_definition ( )

staticfinalinherited

Get the read properties definition of this exporter.

Read properties combines the default properties from the model (persistent or stdClass) with the properties defined by self::define_other_properties().

Return values

array Keys are the property names, and value their definition.

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

mod/data/classes/external/field_exporter.php

Public Member Functions

Static Public Member Functions

Protected Member Functions

Static Protected Member Functions

Protected Attributes

Detailed Description

Member Function Documentation

◆ define_other_properties()

◆ define_properties()

◆ define_related()

◆ export()

◆ format_properties()

◆ get_context_structure()

◆ get_create_structure()

◆ get_format_field()

◆ get_format_parameters()

◆ get_format_structure()

◆ get_other_values()

◆ get_read_structure()

◆ get_read_structure_from_properties()

◆ get_update_structure()

◆ properties_definition()

◆ read_properties_definition()