MediaWiki  REL1_31
SearchApi.php
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1 <?php
3 
28 trait SearchApi {
29 
36  private static $BACKEND_NULL_PARAM = 'database-backed';
37 
46  public function buildCommonApiParams( $isScrollable = true ) {
47  $params = [
48  'search' => [
49  ApiBase::PARAM_TYPE => 'string',
51  ],
52  'namespace' => [
54  ApiBase::PARAM_TYPE => 'namespace',
55  ApiBase::PARAM_ISMULTI => true,
56  ],
57  'limit' => [
58  ApiBase::PARAM_DFLT => 10,
59  ApiBase::PARAM_TYPE => 'limit',
60  ApiBase::PARAM_MIN => 1,
63  ],
64  ];
65  if ( $isScrollable ) {
66  $params['offset'] = [
68  ApiBase::PARAM_TYPE => 'integer',
69  ApiBase::PARAM_HELP_MSG => 'api-help-param-continue',
70  ];
71  }
72 
73  $searchConfig = MediaWikiServices::getInstance()->getSearchEngineConfig();
74  $alternatives = $searchConfig->getSearchTypes();
75  if ( count( $alternatives ) > 1 ) {
76  if ( $alternatives[0] === null ) {
77  $alternatives[0] = self::$BACKEND_NULL_PARAM;
78  }
79  $this->allowedParams['backend'] = [
80  ApiBase::PARAM_DFLT => $searchConfig->getSearchType(),
81  ApiBase::PARAM_TYPE => $alternatives,
82  ];
83  // @todo: support profile selection when multiple
84  // backends are available. The solution could be to
85  // merge all possible profiles and let ApiBase
86  // subclasses do the check. Making ApiHelp and ApiSandbox
87  // comprehensive might be more difficult.
88  } else {
89  $params += $this->buildProfileApiParam();
90  }
91 
92  return $params;
93  }
94 
102  private function buildProfileApiParam() {
103  $configs = $this->getSearchProfileParams();
104  $searchEngine = MediaWikiServices::getInstance()->newSearchEngine();
105  $params = [];
106  foreach ( $configs as $paramName => $paramConfig ) {
107  $profiles = $searchEngine->getProfiles( $paramConfig['profile-type'],
108  $this->getContext()->getUser() );
109  if ( !$profiles ) {
110  continue;
111  }
112 
113  $types = [];
114  $helpMessages = [];
115  $defaultProfile = null;
116  foreach ( $profiles as $profile ) {
117  $types[] = $profile['name'];
118  if ( isset( $profile['desc-message'] ) ) {
119  $helpMessages[$profile['name']] = $profile['desc-message'];
120  }
121  if ( !empty( $profile['default'] ) ) {
122  $defaultProfile = $profile['name'];
123  }
124  }
125 
126  $params[$paramName] = [
127  ApiBase::PARAM_TYPE => $types,
128  ApiBase::PARAM_HELP_MSG => $paramConfig['help-message'],
129  ApiBase::PARAM_HELP_MSG_PER_VALUE => $helpMessages,
130  ApiBase::PARAM_DFLT => $defaultProfile,
131  ];
132  }
133 
134  return $params;
135  }
136 
151  public function buildSearchEngine( array $params = null ) {
152  if ( $params != null ) {
153  $type = isset( $params['backend'] ) ? $params['backend'] : null;
154  if ( $type === self::$BACKEND_NULL_PARAM ) {
155  $type = null;
156  }
157  $searchEngine = MediaWikiServices::getInstance()->getSearchEngineFactory()->create( $type );
158  $limit = $params['limit'];
159  $searchEngine->setNamespaces( $params['namespace'] );
160  $offset = null;
161  if ( isset( $params['offset'] ) ) {
162  // If the API supports offset then it probably
163  // wants to fetch limit+1 so it can check if
164  // more results are available to properly set
165  // the continue param
166  $offset = $params['offset'];
167  $limit += 1;
168  }
169  $searchEngine->setLimitOffset( $limit, $offset );
170 
171  // Initialize requested search profiles.
172  $configs = $this->getSearchProfileParams();
173  foreach ( $configs as $paramName => $paramConfig ) {
174  if ( isset( $params[$paramName] ) ) {
175  $searchEngine->setFeatureData(
176  $paramConfig['profile-type'],
177  $params[$paramName]
178  );
179  }
180  }
181  } else {
182  $searchEngine = MediaWikiServices::getInstance()->newSearchEngine();
183  }
184  return $searchEngine;
185  }
186 
191  abstract public function getSearchProfileParams();
192 
196  abstract public function getContext();
197 }
use
Apache License January AND DISTRIBUTION Definitions License shall mean the terms and conditions for use
Definition: APACHE-LICENSE-2.0.txt:10
ApiBase\PARAM_REQUIRED
const PARAM_REQUIRED
(boolean) Is the parameter required?
Definition: ApiBase.php:111
array
the array() calling protocol came about after MediaWiki 1.4rc1.
ApiBase\PARAM_HELP_MSG
const PARAM_HELP_MSG
(string|array|Message) Specify an alternative i18n documentation message for this parameter.
Definition: ApiBase.php:124
ApiBase\PARAM_TYPE
const PARAM_TYPE
(string|string[]) Either an array of allowed value strings, or a string type as described below.
Definition: ApiBase.php:87
$params
$params
Definition: styleTest.css.php:40
getContext
getContext()
php
injection txt This is an overview of how MediaWiki makes use of dependency injection The design described here grew from the discussion of RFC T384 The term dependency this means that anything an object needs to operate should be injected from the the object itself should only know narrow no concrete implementation of the logic it relies on The requirement to inject everything typically results in an architecture that based on two main types of and essentially stateless service objects that use other service objects to operate on the value objects As of the beginning MediaWiki is only starting to use the DI approach Much of the code still relies on global state or direct resulting in a highly cyclical dependency which acts as the top level factory for services in MediaWiki which can be used to gain access to default instances of various services MediaWikiServices however also allows new services to be defined and default services to be redefined Services are defined or redefined by providing a callback the instantiator that will return a new instance of the service When it will create an instance of MediaWikiServices and populate it with the services defined in the files listed by thereby bootstrapping the DI framework Per $wgServiceWiringFiles lists includes ServiceWiring php
Definition: injection.txt:37
NS_MAIN
const NS_MAIN
Definition: Defines.php:74
ApiBase\PARAM_MIN
const PARAM_MIN
(integer) Lowest value allowed for the parameter, for PARAM_TYPE 'integer' and 'limit'.
Definition: ApiBase.php:99
ApiBase\LIMIT_BIG1
const LIMIT_BIG1
Fast query, standard limit.
Definition: ApiBase.php:234
buildSearchEngine
buildSearchEngine(array $params=null)
Build the search engine to use.
Definition: SearchApi.php:151
ApiBase\PARAM_MAX
const PARAM_MAX
(integer) Max value allowed for the parameter, for PARAM_TYPE 'integer' and 'limit'.
Definition: ApiBase.php:90
buildProfileApiParam
buildProfileApiParam()
Build the profile api param definitions.
Definition: SearchApi.php:102
ApiBase\LIMIT_BIG2
const LIMIT_BIG2
Fast query, apihighlimits limit.
Definition: ApiBase.php:236
ApiBase\PARAM_DFLT
const PARAM_DFLT
(null|boolean|integer|string) Default value of the parameter.
Definition: ApiBase.php:48
as
This document is intended to provide useful advice for parties seeking to redistribute MediaWiki to end users It s targeted particularly at maintainers for Linux since it s been observed that distribution packages of MediaWiki often break We ve consistently had to recommend that users seeking support use official tarballs instead of their distribution s and this often solves whatever problem the user is having It would be nice if this could such as
Definition: distributors.txt:22
ApiBase\PARAM_ISMULTI
const PARAM_ISMULTI
(boolean) Accept multiple pipe-separated values for this parameter (e.g.
Definition: ApiBase.php:51
ApiBase\PARAM_MAX2
const PARAM_MAX2
(integer) Max value allowed for the parameter for users with the apihighlimits right,...
Definition: ApiBase.php:96
MediaWikiServices
injection txt This is an overview of how MediaWiki makes use of dependency injection The design described here grew from the discussion of RFC T384 The term dependency this means that anything an object needs to operate should be injected from the the object itself should only know narrow no concrete implementation of the logic it relies on The requirement to inject everything typically results in an architecture that based on two main types of and essentially stateless service objects that use other service objects to operate on the value objects As of the beginning MediaWiki is only starting to use the DI approach Much of the code still relies on global state or direct resulting in a highly cyclical dependency MediaWikiServices
Definition: injection.txt:25
ApiBase\PARAM_HELP_MSG_PER_VALUE
const PARAM_HELP_MSG_PER_VALUE
((string|array|Message)[]) When PARAM_TYPE is an array, this is an array mapping those values to $msg...
Definition: ApiBase.php:157
SearchApi
trait SearchApi
Traits for API components that use a SearchEngine.
Definition: SearchApi.php:28
getSearchProfileParams
getSearchProfileParams()
buildCommonApiParams
buildCommonApiParams( $isScrollable=true)
The set of api parameters that are shared between api calls that call the SearchEngine.
Definition: SearchApi.php:46
$type
$type
Definition: testCompression.php:48