mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/TemplateData
synced 2024-11-25 08:15:24 +00:00
830 lines
22 KiB
PHP
830 lines
22 KiB
PHP
<?php
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/**
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* @file
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* @ingroup Extensions
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*/
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/**
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* Represents the information about a template,
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* coming from the JSON blob in the <templatedata> tags
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* on wiki pages.
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*
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* @class
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*/
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class TemplateDataBlob {
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// Size of MySQL 'blob' field; page_props table where the data is stored uses one.
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const MAX_LENGTH = 65535;
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/**
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* @var stdClass
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*/
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private $data;
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/**
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* @var Status: Cache of TemplateDataBlob::parse
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*/
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private $status;
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/**
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* Parse and validate passed JSON and create a TemplateDataBlob object.
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* Accepts and handles user-provided data.
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*
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* @param string $json
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* @throws Exception
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* @return TemplateDataBlob
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*/
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public static function newFromJSON( $json ) {
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$tdb = new self( json_decode( $json ) );
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$status = $tdb->parse();
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if ( !$status->isOK() ) {
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// If data is invalid, replace with the minimal valid blob.
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// This is to make sure that, if something forgets to check the status first,
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// we don't end up with invalid data in the database.
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$tdb->data = new stdClass();
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$tdb->data->description = null;
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$tdb->data->params = new stdClass();
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$tdb->data->paramOrder = array();
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$tdb->data->sets = array();
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$tdb->data->maps = new stdClass();
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}
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$tdb->status = $status;
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return $tdb;
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}
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/**
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* Parse and validate passed JSON (possibly gzip-compressed) and create a TemplateDataBlob object.
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*
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* @param string $json
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* @return TemplateDataBlob
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*/
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public static function newFromDatabase( $json ) {
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// Handle GZIP compression. \037\213 is the header for GZIP files.
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if ( substr( $json, 0, 2 ) === "\037\213" ) {
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$json = gzdecode( $json );
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}
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return self::newFromJSON( $json );
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}
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/**
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* Parse the data, normalise it and validate it.
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*
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* See spec.templatedata.json for the expected format of the JSON object.
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* @return Status
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*/
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private function parse() {
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$data = $this->data;
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static $rootKeys = array(
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'description',
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'params',
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'paramOrder',
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'sets',
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'maps',
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);
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static $paramKeys = array(
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'label',
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'required',
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'suggested',
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'description',
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'example',
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'deprecated',
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'aliases',
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'autovalue',
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'default',
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'inherits',
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'type',
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);
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static $types = array(
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'content',
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'line',
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'number',
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'boolean',
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'string',
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'date',
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'unbalanced-wikitext',
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'unknown',
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'wiki-page-name',
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'wiki-user-name',
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'wiki-file-name',
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'wiki-template-name',
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);
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static $typeCompatMap = array(
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'string/line' => 'line',
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'string/wiki-page-name' => 'wiki-page-name',
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'string/wiki-user-name' => 'wiki-user-name',
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'string/wiki-file-name' => 'wiki-file-name',
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);
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if ( $data === null ) {
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return Status::newFatal( 'templatedata-invalid-parse' );
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}
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if ( !is_object( $data ) ) {
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return Status::newFatal( 'templatedata-invalid-type', 'templatedata', 'object' );
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}
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foreach ( $data as $key => $value ) {
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if ( !in_array( $key, $rootKeys ) ) {
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return Status::newFatal( 'templatedata-invalid-unknown', $key );
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}
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}
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// Root.description
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if ( isset( $data->description ) ) {
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if ( !is_object( $data->description ) && !is_string( $data->description ) ) {
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return Status::newFatal( 'templatedata-invalid-type', 'description', 'string|object' );
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}
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$data->description = self::normaliseInterfaceText( $data->description );
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} else {
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$data->description = null;
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}
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// Root.params
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if ( !isset( $data->params ) ) {
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return Status::newFatal( 'templatedata-invalid-missing', 'params', 'object' );
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}
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if ( !is_object( $data->params ) ) {
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return Status::newFatal( 'templatedata-invalid-type', 'params', 'object' );
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}
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// Deep clone
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// We need this to determine whether a property was originally set
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// to decide whether 'inherits' will add it or not.
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$unnormalizedParams = unserialize( serialize( $data->params ) );
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$paramNames = array();
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foreach ( $data->params as $paramName => $paramObj ) {
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if ( !is_object( $paramObj ) ) {
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return Status::newFatal(
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'templatedata-invalid-type',
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"params.{$paramName}",
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'object'
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);
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}
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foreach ( $paramObj as $key => $value ) {
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if ( !in_array( $key, $paramKeys ) ) {
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return Status::newFatal(
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'templatedata-invalid-unknown',
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"params.{$paramName}.{$key}"
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);
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}
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}
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// Param.label
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if ( isset( $paramObj->label ) ) {
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if ( !is_object( $paramObj->label ) && !is_string( $paramObj->label ) ) {
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// TODO: Also validate that the keys are valid lang codes and the values strings.
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return Status::newFatal(
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'templatedata-invalid-type',
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"params.{$paramName}.label",
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'string|object'
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);
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}
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$paramObj->label = self::normaliseInterfaceText( $paramObj->label );
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} else {
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$paramObj->label = null;
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}
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// Param.required
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if ( isset( $paramObj->required ) ) {
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if ( !is_bool( $paramObj->required ) ) {
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return Status::newFatal(
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'templatedata-invalid-type',
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"params.{$paramName}.required",
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'boolean'
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);
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}
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} else {
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$paramObj->required = false;
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}
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// Param.suggested
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if ( isset( $paramObj->suggested ) ) {
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if ( !is_bool( $paramObj->suggested ) ) {
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return Status::newFatal(
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'templatedata-invalid-type',
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"params.{$paramName}.suggested",
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'boolean'
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);
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}
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} else {
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$paramObj->suggested = false;
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}
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// Param.description
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if ( isset( $paramObj->description ) ) {
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if ( !is_object( $paramObj->description ) && !is_string( $paramObj->description ) ) {
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// TODO: Also validate that the keys are valid lang codes and the values strings.
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return Status::newFatal(
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'templatedata-invalid-type',
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"params.{$paramName}.description",
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'string|object'
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);
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}
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$paramObj->description = self::normaliseInterfaceText( $paramObj->description );
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} else {
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$paramObj->description = null;
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}
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// Param.example
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if ( isset( $paramObj->example ) ) {
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if ( !is_object( $paramObj->example ) && !is_string( $paramObj->example ) ) {
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// TODO: Also validate that the keys are valid lang codes and the values strings.
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return Status::newFatal(
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'templatedata-invalid-type',
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"params.{$paramName}.example",
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'string|object'
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);
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}
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$paramObj->example = self::normaliseInterfaceText( $paramObj->example );
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} else {
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$paramObj->example = null;
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}
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// Param.deprecated
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if ( isset( $paramObj->deprecated ) ) {
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if ( !is_bool( $paramObj->deprecated ) && !is_string( $paramObj->deprecated ) ) {
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return Status::newFatal(
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'templatedata-invalid-type',
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"params.{$paramName}.deprecated",
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'boolean|string'
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);
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}
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} else {
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$paramObj->deprecated = false;
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}
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// Param.aliases
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if ( isset( $paramObj->aliases ) ) {
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if ( !is_array( $paramObj->aliases ) ) {
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// TODO: Validate the array values.
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return Status::newFatal(
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'templatedata-invalid-type',
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"params.{$paramName}.aliases",
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'array'
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);
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}
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} else {
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$paramObj->aliases = array();
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}
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// Param.autovalue
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if ( isset( $paramObj->autovalue ) ) {
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if ( !is_string( $paramObj->autovalue ) ) {
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// TODO: Validate the autovalue values.
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return Status::newFatal(
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'templatedata-invalid-type',
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"params.{$paramName}.autovalue",
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'string'
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);
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}
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} else {
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$paramObj->autovalue = null;
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}
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// Param.default
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if ( isset( $paramObj->default ) ) {
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if ( !is_object( $paramObj->default ) && !is_string( $paramObj->default ) ) {
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// TODO: Also validate that the keys are valid lang codes and the values strings.
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return Status::newFatal(
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'templatedata-invalid-type',
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"params.{$paramName}.default",
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'string|object'
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);
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}
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$paramObj->default = self::normaliseInterfaceText( $paramObj->default );
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} else {
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$paramObj->default = null;
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}
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// Param.type
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if ( isset( $paramObj->type ) ) {
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if ( !is_string( $paramObj->type ) ) {
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return Status::newFatal(
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'templatedata-invalid-type',
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"params.{$paramName}.type",
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'string'
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);
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}
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// Map deprecated types to newer versions
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if ( isset( $typeCompatMap[ $paramObj->type ] ) ) {
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$paramObj->type = $typeCompatMap[ $paramObj->type ];
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}
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if ( !in_array( $paramObj->type, $types ) ) {
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return Status::newFatal(
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'templatedata-invalid-value',
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'params.' . $paramName . '.type'
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);
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}
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} else {
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$paramObj->type = 'unknown';
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}
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$paramNames[] = $paramName;
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}
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// Param.inherits
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// Done afterwards to avoid code duplication
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foreach ( $data->params as $paramName => $paramObj ) {
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if ( isset( $paramObj->inherits ) ) {
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if ( !isset( $data->params->{ $paramObj->inherits } ) ) {
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return Status::newFatal(
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'templatedata-invalid-missing',
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"params.{$paramObj->inherits}"
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);
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}
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$parentParamObj = $data->params->{ $paramObj->inherits };
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foreach ( $parentParamObj as $key => $value ) {
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if ( !in_array( $key, $paramKeys ) ) {
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return Status::newFatal( 'templatedata-invalid-unknown', $key );
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}
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if ( !isset( $unnormalizedParams->$paramName->$key ) ) {
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$paramObj->$key = is_object( $parentParamObj->$key ) ?
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clone $parentParamObj->$key :
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$parentParamObj->$key;
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}
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}
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unset( $paramObj->inherits );
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}
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}
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// Root.paramOrder
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if ( isset( $data->paramOrder ) ) {
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if ( !is_array( $data->paramOrder ) ) {
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return Status::newFatal( 'templatedata-invalid-type', 'paramOrder', 'array' );
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}
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if ( count( $data->paramOrder ) < count( $paramNames ) ) {
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$i = count( $data->paramOrder );
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return Status::newFatal( 'templatedata-invalid-missing', "paramOrder[$i]" );
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}
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// Validate each of the values corresponds to a parameter and that there are no
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// duplicates
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$seen = array();
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foreach ( $data->paramOrder as $i => $param ) {
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if ( !isset( $data->params->$param ) ) {
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return Status::newFatal( 'templatedata-invalid-value', "paramOrder[$i]" );
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}
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if ( isset( $seen[$param] ) ) {
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return Status::newFatal(
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'templatedata-invalid-duplicate-value',
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"paramOrder[$i]",
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"paramOrder[{$seen[$param]}]",
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$param
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);
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}
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$seen[$param] = $i;
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}
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} else {
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$data->paramOrder = $paramNames;
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}
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// Root.sets
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if ( isset( $data->sets ) ) {
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if ( !is_array( $data->sets ) ) {
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return Status::newFatal( 'templatedata-invalid-type', 'sets', 'array' );
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}
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} else {
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$data->sets = array();
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}
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foreach ( $data->sets as $setNr => $setObj ) {
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if ( !is_object( $setObj ) ) {
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return Status::newFatal( 'templatedata-invalid-value', "sets.{$setNr}" );
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}
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if ( !isset( $setObj->label ) ) {
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return Status::newFatal(
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'templatedata-invalid-missing',
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"sets.{$setNr}.label",
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'string|object'
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);
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}
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if ( !is_object( $setObj->label ) && !is_string( $setObj->label ) ) {
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// TODO: Also validate that the keys are valid lang codes and the values strings.
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return Status::newFatal(
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'templatedata-invalid-type',
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"sets.{$setNr}.label",
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'string|object'
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);
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}
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$setObj->label = self::normaliseInterfaceText( $setObj->label );
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if ( !isset( $setObj->params ) ) {
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return Status::newFatal( 'templatedata-invalid-missing', "sets.{$setNr}.params", 'array' );
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}
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if ( !is_array( $setObj->params ) ) {
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return Status::newFatal( 'templatedata-invalid-type', "sets.{$setNr}.params", 'array' );
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}
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if ( !count( $setObj->params ) ) {
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return Status::newFatal( 'templatedata-invalid-empty-array', "sets.{$setNr}.params" );
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}
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foreach ( $setObj->params as $i => $param ) {
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if ( !isset( $data->params->$param ) ) {
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return Status::newFatal( 'templatedata-invalid-value', "sets.{$setNr}.params[$i]" );
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}
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}
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}
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// Root.maps
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if ( isset( $data->maps ) ) {
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if ( !is_object( $data->maps ) ) {
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return Status::newFatal( 'templatedata-invalid-type', 'maps', 'object' );
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}
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} else {
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$data->maps = new stdClass();
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}
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foreach ( $data->maps as $consumerId => $map ) {
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if ( !is_object( $map ) ) {
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return Status::newFatal( 'templatedata-invalid-type', 'maps', 'object' );
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}
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foreach ( $map as $key => $value ) {
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// Key is not validated as this is used by a third-party application
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// Value must be 2d array of parameter names, 1d array of parameter names, or valid
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// parameter name
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if ( is_array( $value ) ) {
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foreach ( $value as $key2 => $value2 ) {
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if ( is_array( $value2 ) ) {
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foreach ( $value2 as $key3 => $value3 ) {
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if ( !is_string( $value3 ) ) {
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return Status::newFatal(
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'templatedata-invalid-type',
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"maps.{$consumerId}.{$key}[$key2][$key3]",
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'string'
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);
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}
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if ( !isset( $data->params->$value3 ) ) {
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return Status::newFatal(
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'templatedata-invalid-param',
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$value3,
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"maps.{$consumerId}.{$key}"
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);
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}
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}
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} elseif ( is_string( $value2 ) ){
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if ( !isset( $data->params->$value2 ) ) {
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return Status::newFatal(
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'templatedata-invalid-param',
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$value2,
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"maps.{$consumerId}.{$key}"
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);
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}
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} else {
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return Status::newFatal(
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'templatedata-invalid-type',
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"maps.{$consumerId}.{$key}[$key2]",
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'string|array'
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);
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}
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}
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} elseif ( is_string( $value ) ) {
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if ( !isset( $data->params->$value ) ) {
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return Status::newFatal(
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'templatedata-invalid-param',
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$value,
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"maps.{$consumerId}.{$key}"
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);
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}
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} else {
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return Status::newFatal(
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'templatedata-invalid-type',
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"maps.{$consumerId}.{$key}",
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'string|array'
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);
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}
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}
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}
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$length = strlen( $this->getJSONForDatabase() );
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if ( $length > self::MAX_LENGTH ) {
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return Status::newFatal( 'templatedata-invalid-length', $length, self::MAX_LENGTH );
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}
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return Status::newGood();
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}
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|
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/**
|
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* Normalise a InterfaceText field in the TemplateData blob.
|
|
* @return stdClass|string $text
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*/
|
|
protected static function normaliseInterfaceText( $text ) {
|
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if ( is_string( $text ) ) {
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global $wgContLang;
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$ret = new stdClass();
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$ret->{ $wgContLang->getCode() } = $text;
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return $ret;
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}
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return $text;
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}
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|
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/**
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|
* Get a single localized string from an InterfaceText object.
|
|
*
|
|
* Uses the preferred language passed to this function, or one of its fallbacks,
|
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* or the site content language, or its fallbacks.
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|
*
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* @param stdClass $text An InterfaceText object
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|
* @param string $langCode Preferred language
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|
* @return null|string Text value from the InterfaceText object or null if no suitable
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|
* match was found
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|
*/
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|
protected static function getInterfaceTextInLanguage( stdClass $text, $langCode ) {
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|
if ( isset( $text->$langCode ) ) {
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return $text->$langCode;
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|
}
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|
|
|
list( $userlangs, $sitelangs ) = Language::getFallbacksIncludingSiteLanguage( $langCode );
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|
|
|
foreach ( $userlangs as $lang ) {
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|
if ( isset( $text->$lang ) ) {
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|
return $text->$lang;
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|
}
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|
}
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|
|
|
foreach ( $sitelangs as $lang ) {
|
|
if ( isset( $text->$lang ) ) {
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|
return $text->$lang;
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|
}
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|
}
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|
|
|
// If none of the languages are found fallback to null. Alternatively we could fallback to
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|
// reset( $text ) which will return whatever key there is, but we should't give the user a
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// "random" language with no context (e.g. could be RTL/Hebrew for an LTR/Japanese user).
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|
return null;
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|
}
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|
|
|
/**
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|
* @return Status
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|
*/
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|
public function getStatus() {
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|
return $this->status;
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|
}
|
|
|
|
/**
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|
* @return object
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|
*/
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|
public function getData() {
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|
// TODO: Returned by reference. Data is a private member. Use clone instead?
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|
return $this->data;
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|
}
|
|
|
|
/**
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|
* Get data with all InterfaceText objects resolved to a single string to the
|
|
* appropriate language.
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|
*
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|
* @param string $langCode Preferred language
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|
* @return object
|
|
*/
|
|
public function getDataInLanguage( $langCode ) {
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|
// Deep clone, also need to clone ->params and all interfacetext objects
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|
// within param properties.
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|
$data = unserialize( serialize( $this->data ) );
|
|
|
|
// Root.description
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|
if ( $data->description !== null ) {
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|
$data->description = self::getInterfaceTextInLanguage( $data->description, $langCode );
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|
}
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|
|
|
foreach ( $data->params as $paramObj ) {
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|
// Param.label
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|
if ( $paramObj->label !== null ) {
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|
$paramObj->label = self::getInterfaceTextInLanguage( $paramObj->label, $langCode );
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|
}
|
|
|
|
// Param.description
|
|
if ( $paramObj->description !== null ) {
|
|
$paramObj->description = self::getInterfaceTextInLanguage( $paramObj->description, $langCode );
|
|
}
|
|
|
|
// Param.default
|
|
if ( $paramObj->default !== null ) {
|
|
$paramObj->default = self::getInterfaceTextInLanguage( $paramObj->default, $langCode );
|
|
}
|
|
|
|
// Param.example
|
|
if ( $paramObj->example !== null ) {
|
|
$paramObj->example = self::getInterfaceTextInLanguage( $paramObj->example, $langCode );
|
|
}
|
|
}
|
|
|
|
foreach ( $data->sets as $setObj ) {
|
|
$label = self::getInterfaceTextInLanguage( $setObj->label, $langCode );
|
|
if ( $label === null ) {
|
|
// Contrary to other InterfaceTexts, set label is not optional. If we're here it
|
|
// means the template data from the wiki doesn't contain either the user language,
|
|
// site language or any of its fallbacks. Wikis should fix data that is in this
|
|
// condition (TODO: Disallow during saving?). For now, fallback to whatever we can
|
|
// get that does exist in the text object.
|
|
$arr = (array)$setObj->label;
|
|
$label = reset( $arr );
|
|
}
|
|
|
|
$setObj->label = $label;
|
|
}
|
|
|
|
return $data;
|
|
}
|
|
|
|
/**
|
|
* @return string JSON
|
|
*/
|
|
public function getJSON() {
|
|
return json_encode( $this->data );
|
|
}
|
|
|
|
/**
|
|
* @return string JSON, gzip-compressed
|
|
*/
|
|
public function getJSONForDatabase() {
|
|
return gzencode( $this->getJSON() );
|
|
}
|
|
|
|
public function getHtml( Language $lang ) {
|
|
$data = $this->getDataInLanguage( $lang->getCode() );
|
|
$html =
|
|
Html::openElement( 'div', array( 'class' => 'mw-templatedata-doc-wrap' ) )
|
|
. Html::element(
|
|
'p',
|
|
array(
|
|
'class' => array(
|
|
'mw-templatedata-doc-desc',
|
|
'mw-templatedata-doc-muted' => $data->description === null,
|
|
)
|
|
),
|
|
$data->description !== null ?
|
|
$data->description :
|
|
wfMessage( 'templatedata-doc-desc-empty' )->inLanguage( $lang )->text()
|
|
)
|
|
. '<table class="wikitable mw-templatedata-doc-params sortable">'
|
|
. Html::element(
|
|
'caption',
|
|
array(),
|
|
wfMessage( 'templatedata-doc-params' )->inLanguage( $lang )->text()
|
|
)
|
|
. '<thead><tr>'
|
|
. Html::element(
|
|
'th',
|
|
array( 'colspan' => 2 ),
|
|
wfMessage( 'templatedata-doc-param-name' )->inLanguage( $lang )->text()
|
|
)
|
|
. Html::element(
|
|
'th',
|
|
array(),
|
|
wfMessage( 'templatedata-doc-param-desc' )->inLanguage( $lang )->text()
|
|
)
|
|
. Html::element(
|
|
'th',
|
|
array(),
|
|
wfMessage( 'templatedata-doc-param-type' )->inLanguage( $lang )->text()
|
|
)
|
|
. Html::element(
|
|
'th',
|
|
array(),
|
|
wfMessage( 'templatedata-doc-param-status' )->inLanguage( $lang )->text()
|
|
)
|
|
. '</tr></thead>'
|
|
. '<tbody>';
|
|
|
|
if ( count( (array)$data->params ) === 0 ) {
|
|
// Display no parameters message
|
|
$html .= '<tr>'
|
|
. Html::element( 'td',
|
|
array(
|
|
'class' => 'mw-templatedata-doc-muted',
|
|
'colspan' => 7
|
|
),
|
|
wfMessage( 'templatedata-doc-no-params-set' )->inLanguage( $lang )->text()
|
|
)
|
|
. '</tr>';
|
|
}
|
|
foreach ( $data->paramOrder as $paramName ) {
|
|
$paramObj = $data->params->$paramName;
|
|
$description = '';
|
|
$default = '';
|
|
|
|
$aliases = '';
|
|
if ( count( $paramObj->aliases ) ) {
|
|
foreach ( $paramObj->aliases as $alias ) {
|
|
$aliases .= Html::element( 'code', array(
|
|
'class' => 'mw-templatedata-doc-param-alias'
|
|
), $alias );
|
|
}
|
|
}
|
|
|
|
if ( $paramObj->deprecated ) {
|
|
$status = 'templatedata-doc-param-status-deprecated';
|
|
} elseif ( $paramObj->required ) {
|
|
$status = 'templatedata-doc-param-status-required';
|
|
} elseif ( $paramObj->suggested ) {
|
|
$status = 'templatedata-doc-param-status-suggested';
|
|
} else {
|
|
$status = 'templatedata-doc-param-status-optional';
|
|
}
|
|
|
|
$html .= '<tr>'
|
|
// Label
|
|
. Html::element( 'th', array(),
|
|
$paramObj->label !== null ?
|
|
$paramObj->label :
|
|
ucfirst( $paramName )
|
|
)
|
|
// Parameters and aliases
|
|
. Html::rawElement( 'td', array( 'class' => 'mw-templatedata-doc-param-name' ),
|
|
Html::element( 'code', array(), $paramName ) . $aliases
|
|
)
|
|
// Description
|
|
. Html::rawElement( 'td', array(
|
|
'class' => array(
|
|
'mw-templatedata-doc-muted' => ( $paramObj->description === null )
|
|
)
|
|
),
|
|
Html::rawElement( 'p', array(),
|
|
$paramObj->description !== null ?
|
|
$paramObj->description :
|
|
wfMessage( 'templatedata-doc-param-desc-empty' )->inLanguage( $lang )->text()
|
|
)
|
|
. Html::rawElement( 'dl', array(),
|
|
Html::element( 'dt', array(),
|
|
wfMessage( 'templatedata-doc-param-default' )->inLanguage( $lang )->text()
|
|
)
|
|
// Default
|
|
. Html::element( 'dd', array(
|
|
'class' => array(
|
|
'mw-templatedata-doc-muted' => $paramObj->default === null
|
|
)
|
|
),
|
|
$paramObj->default !== null ?
|
|
$paramObj->default :
|
|
wfMessage( 'templatedata-doc-param-default-empty' )->inLanguage( $lang )->text()
|
|
)
|
|
// Example
|
|
. Html::element( 'dt', array(),
|
|
wfMessage( 'templatedata-doc-param-example' )->inLanguage( $lang )->text()
|
|
)
|
|
. Html::element( 'dd', array(
|
|
'class' => array(
|
|
'mw-templatedata-doc-muted' => $paramObj->example === null
|
|
)
|
|
),
|
|
$paramObj->example !== null ?
|
|
$paramObj->example :
|
|
wfMessage( 'templatedata-doc-param-example-empty' )->inLanguage( $lang )->text()
|
|
)
|
|
// Auto value
|
|
. Html::element( 'dt', array(),
|
|
wfMessage( 'templatedata-doc-param-autovalue' )->inLanguage( $lang )->text()
|
|
)
|
|
. Html::rawElement( 'dd', array(
|
|
'class' => array(
|
|
'mw-templatedata-doc-muted' => $paramObj->autovalue === null
|
|
)
|
|
),
|
|
$paramObj->autovalue !== null ?
|
|
Html::element( 'code', array(), $paramObj->autovalue ) :
|
|
wfMessage( 'templatedata-doc-param-autovalue-empty' )->inLanguage( $lang )->escaped()
|
|
)
|
|
)
|
|
)
|
|
// Type
|
|
. Html::rawElement( 'td', array(
|
|
'class' => array(
|
|
'mw-templatedata-doc-param-type',
|
|
'mw-templatedata-doc-muted' => $paramObj->type === 'unknown'
|
|
)
|
|
),
|
|
Html::element( 'code', array(), $paramObj->type )
|
|
)
|
|
// Status
|
|
. Html::element( 'td', array(), wfMessage( $status )->inLanguage( $lang )->text() )
|
|
. '</tr>';
|
|
}
|
|
$html .= '</tbody></table>'
|
|
. Html::closeElement( 'div' );
|
|
|
|
return $html;
|
|
}
|
|
|
|
private function __construct( $data = null ) {
|
|
$this->data = $data;
|
|
}
|
|
|
|
}
|