MediaWiki REL1_39
ApiQueryQueryPage Class Reference

Query module to get the results of a QueryPage-based special page. More...

Inheritance diagram for ApiQueryQueryPage:
Collaboration diagram for ApiQueryQueryPage:

Public Member Functions

 __construct (ApiQuery $query, $moduleName, SpecialPageFactory $specialPageFactory)
 
 execute ()
 Evaluates the parameters, performs the requested query, and sets up the result.
 
 executeGenerator ( $resultPageSet)
 Execute this module as a generator.
 
 getAllowedParams ()
 Returns an array of allowed parameters (parameter name) => (default value) or (parameter name) => (array with PARAM_* constants as keys) Don't call this function directly: use getFinalParams() to allow hooks to modify parameters as needed.
 
 getCacheMode ( $params)
 Get the cache mode for the data generated by this module.
 
 getHelpUrls ()
 Return links to more detailed help pages about the module.
 
 run ( $resultPageSet=null)
 
- Public Member Functions inherited from ApiQueryGeneratorBase
 encodeParamName ( $paramName)
 Overrides ApiBase to prepend 'g' to every generator parameter.
 
 isInGeneratorMode ()
 Indicate whether the module is in generator mode.
 
 setGeneratorMode (ApiPageSet $generatorPageSet)
 Switch this module to generator mode.
 
- Public Member Functions inherited from ApiQueryBase
 __construct (ApiQuery $queryModule, $moduleName, $paramPrefix='')
 
 requestExtraData ( $pageSet)
 Override this method to request extra fields from the pageSet using $pageSet->requestField('fieldName')
 
 getQuery ()
 Get the main Query module.
 
 getParent ()
 Get the parent of this module.
Stability: stable
to override
Since
1.25
Returns
ApiBase|null

 
 selectNamedDB ( $name, $db, $groups)
 Change the database connection for subsequent calls to getDB().
 
 titlePartToKey ( $titlePart, $namespace=NS_MAIN)
 Convert an input title or title prefix into a dbkey.
 
 validateSha1Hash ( $hash)
 
 validateSha1Base36Hash ( $hash)
 
 userCanSeeRevDel ()
 Check whether the current user has permission to view revision-deleted fields.
 
- Public Member Functions inherited from ApiBase
 __construct (ApiMain $mainModule, $moduleName, $modulePrefix='')
 
 getModuleManager ()
 Get the module manager, or null if this module has no sub-modules.
 
 getCustomPrinter ()
 If the module may only be used with a certain format module, it should override this method to return an instance of that formatter.
 
 shouldCheckMaxlag ()
 Indicates if this module needs maxlag to be checked.
 
 isReadMode ()
 Indicates whether this module requires read rights.
 
 isWriteMode ()
 Indicates whether this module requires write mode.
 
 mustBePosted ()
 Indicates whether this module must be called with a POST request.
 
 isDeprecated ()
 Indicates whether this module is deprecated.
 
 isInternal ()
 Indicates whether this module is "internal" Internal API modules are not (yet) intended for 3rd party use and may be unstable.
 
 needsToken ()
 Returns the token type this module requires in order to execute.
 
 getConditionalRequestData ( $condition)
 Returns data for HTTP conditional request mechanisms.
 
 getModuleName ()
 Get the name of the module being executed by this instance.
 
 getModulePrefix ()
 Get parameter prefix (usually two letters or an empty string).
 
 getMain ()
 Get the main module.
 
 isMain ()
 Returns true if this module is the main module ($this === $this->mMainModule), false otherwise.
 
 lacksSameOriginSecurity ()
 Returns true if the current request breaks the same-origin policy.
 
 getModulePath ()
 Get the path to this module.
 
 getModuleFromPath ( $path)
 Get a module from its module path.
 
 getResult ()
 Get the result object.
 
 getErrorFormatter ()
 
 getContinuationManager ()
 
 setContinuationManager (ApiContinuationManager $manager=null)
 
 dynamicParameterDocumentation ()
 Indicate if the module supports dynamically-determined parameters that cannot be included in self::getAllowedParams().
 
 extractRequestParams ( $options=[])
 Using getAllowedParams(), this function makes an array of the values provided by the user, with key being the name of the variable, and value - validated value from user or default.
 
 requireOnlyOneParameter ( $params,... $required)
 Die if none or more than one of a certain set of parameters is set and not false.
 
 requireMaxOneParameter ( $params,... $required)
 Die if more than one of a certain set of parameters is set and not false.
 
 requireAtLeastOneParameter ( $params,... $required)
 Die if none of a certain set of parameters is set and not false.
 
 requirePostedParameters ( $params, $prefix='prefix')
 Die if any of the specified parameters were found in the query part of the URL rather than the post body.
 
 getTitleOrPageId ( $params, $load=false)
 Get a WikiPage object from a title or pageid param, if possible.
 
 getTitleFromTitleOrPageId ( $params)
 Get a Title object from a title or pageid param, if possible.
 
 handleParamNormalization ( $paramName, $value, $rawValue)
 Handle when a parameter was Unicode-normalized.
 
 validateToken ( $token, array $params)
 Validate the supplied token.
 
 getWatchlistUser ( $params)
 Gets the user for whom to get the watchlist.
 
 errorArrayToStatus (array $errors, User $user=null)
 Turn an array of message keys or key+param arrays into a Status.
 
 addBlockInfoToStatus (StatusValue $status, Authority $user=null)
 Add block info to block messages in a Status.
 
 addWarning ( $msg, $code=null, $data=null)
 Add a warning for this module.
 
 addDeprecation ( $msg, $feature, $data=[])
 Add a deprecation warning for this module.
 
 addError ( $msg, $code=null, $data=null)
 Add an error for this module without aborting.
 
 addMessagesFromStatus (StatusValue $status, $types=[ 'warning', 'error'], array $filter=[])
 Add warnings and/or errors from a Status.
 
 dieWithError ( $msg, $code=null, $data=null, $httpCode=0)
 Abort execution with an error.
 
 dieWithException (Throwable $exception, array $options=[])
 Abort execution with an error derived from a throwable.
 
 dieBlocked (Block $block)
 Throw an ApiUsageException, which will (if uncaught) call the main module's error handler and die with an error message including block info.
 
 dieStatus (StatusValue $status)
 Throw an ApiUsageException based on the Status object.
 
 dieReadOnly ()
 Helper function for readonly errors.
 
 checkUserRightsAny ( $rights, $user=null)
 Helper function for permission-denied errors.
 
 checkTitleUserPermissions ( $pageIdentity, $actions, array $options=[])
 Helper function for permission-denied errors.
 
 dieWithErrorOrDebug ( $msg, $code=null, $data=null, $httpCode=null)
 Will only set a warning instead of failing if the global $wgDebugAPI is set to true.
 
 logFeatureUsage ( $feature)
 Write logging information for API features to a debug log, for usage analysis.
 
 getFinalSummary ()
 Get final module summary.
 
 getFinalDescription ()
 Get final module description, after hooks have had a chance to tweak it as needed.
 
 getFinalParams ( $flags=0)
 Get final list of parameters, after hooks have had a chance to tweak it as needed.
 
 getFinalParamDescription ()
 Get final parameter descriptions, after hooks have had a chance to tweak it as needed.
 
 modifyHelp (array &$help, array $options, array &$tocData)
 Called from ApiHelp before the pieces are joined together and returned.
 
- Public Member Functions inherited from ContextSource
 canUseWikiPage ()
 Check whether a WikiPage object can be get with getWikiPage().
 
 exportSession ()
 Export the resolved user IP, HTTP headers, user ID, and session ID.
 
 getActionName ()
 Get the action name for the current web request.
 
 getAuthority ()
 
 getConfig ()
 
 getContext ()
 Get the base IContextSource object.
 
 getCsrfTokenSet ()
 Get a repository to obtain and match CSRF tokens.
 
 getLanguage ()
 
 getOutput ()
 
 getRequest ()
 
 getSkin ()
 
 getStats ()
 
 getTiming ()
 
 getTitle ()
 
 getUser ()
 
 getWikiPage ()
 Get the WikiPage object.
 
 msg ( $key,... $params)
 Get a Message object with context set Parameters are the same as wfMessage()
 
 setContext (IContextSource $context)
 

Protected Member Functions

 getExamplesMessages ()
 Returns usage examples for this module.
 
- Protected Member Functions inherited from ApiQueryGeneratorBase
 getHelpFlags ()
 Generates the list of flags for the help screen and for action=paraminfo.Corresponding messages: api-help-flag-deprecated, api-help-flag-internal, api-help-flag-readrights, api-help-flag-writerights, api-help-flag-mustbeposted
Returns
string[]

 
 getPageSet ()
 Get the PageSet object to work on.
 
 setContinueEnumParameter ( $paramName, $paramValue)
 Overridden to set the generator param if in generator mode.
 
- Protected Member Functions inherited from ApiQueryBase
 resetQueryParams ()
 Blank the internal arrays with query parameters.
 
 getQueryBuilder ()
 Get the SelectQueryBuilder.
 
 addTables ( $tables, $alias=null)
 Add a set of tables to the internal array.
 
 addJoinConds ( $join_conds)
 Add a set of JOIN conditions to the internal array.
 
 addFields ( $value)
 Add a set of fields to select to the internal array.
 
 addFieldsIf ( $value, $condition)
 Same as addFields(), but add the fields only if a condition is met.
 
 addWhere ( $value)
 Add a set of WHERE clauses to the internal array.
 
 addWhereIf ( $value, $condition)
 Same as addWhere(), but add the WHERE clauses only if a condition is met.
 
 addWhereFld ( $field, $value)
 Equivalent to addWhere( [ $field => $value ] )
 
 addWhereIDsFld ( $table, $field, $ids)
 Like addWhereFld for an integer list of IDs.
 
 addWhereRange ( $field, $dir, $start, $end, $sort=true)
 Add a WHERE clause corresponding to a range, and an ORDER BY clause to sort in the right direction.
 
 addTimestampWhereRange ( $field, $dir, $start, $end, $sort=true)
 Add a WHERE clause corresponding to a range, similar to addWhereRange, but converts $start and $end to database timestamps.
 
 addOption ( $name, $value=null)
 Add an option such as LIMIT or USE INDEX.
 
 select ( $method, $extraQuery=[], array &$hookData=null)
 Execute a SELECT query based on the values in the internal arrays.
 
 processRow ( $row, array &$data, array &$hookData)
 Call the ApiQueryBaseProcessRow hook.
 
 getDB ()
 Get the Query database connection (read-only)
 
 addPageSubItems ( $pageId, $data)
 Add a sub-element under the page element with the given page ID.
 
 addPageSubItem ( $pageId, $item, $elemname=null)
 Same as addPageSubItems(), but one element of $data at a time.
 
 parsePrefixedTitlePart ( $titlePart, $defaultNamespace=NS_MAIN)
 Convert an input title or title prefix into a TitleValue.
 
 executeGenderCacheFromResultWrapper (IResultWrapper $res, $fname=__METHOD__, $fieldPrefix='page')
 Preprocess the result set to fill the GenderCache with the necessary information before using self::addTitleInfo.
 
- Protected Member Functions inherited from ApiBase
 getWebUITokenSalt (array $params)
 Fetch the salt used in the Web UI corresponding to this module.
 
 getPermissionManager ()
 Obtain a PermissionManager instance that subclasses may use in their authorization checks.
 
 getHookContainer ()
 Get a HookContainer, for running extension hooks or for hook metadata.
 
 getHookRunner ()
 Get an ApiHookRunner for running core API hooks.
 
 getParameter ( $paramName, $parseLimit=true)
 Get a value for the given parameter.
 
 getParameterFromSettings ( $name, $settings, $parseLimit)
 Using the settings determine the value for the given parameter.
 
 useTransactionalTimeLimit ()
 Call wfTransactionalTimeLimit() if this request was POSTed.
 
 filterIDs ( $fields, array $ids)
 Filter out-of-range values from a list of positive integer IDs.
 
 dieContinueUsageIf ( $condition)
 Die with the 'badcontinue' error.
 
 getSummaryMessage ()
 Return the summary message.
 
 getExtendedDescription ()
 Return the extended help text message.
 
 getModuleSourceInfo ()
 Returns information about the source of this module, if known.
 

Additional Inherited Members

- Static Public Member Functions inherited from ApiQueryBase
static addTitleInfo (&$arr, $title, $prefix='')
 Add information (title and namespace) about a Title object to a result array.
 
- Static Public Member Functions inherited from ApiBase
static makeMessage ( $msg, IContextSource $context, array $params=null)
 Create a Message from a string or array.
 
static clearCacheForTest ()
 Reset static caches of database state.
 
- Public Attributes inherited from ApiBase
const PARAM_RANGE_ENFORCE = 'api-param-range-enforce'
 (boolean) Inverse of IntegerDef::PARAM_IGNORE_RANGE
 
const PARAM_DFLT = ParamValidator::PARAM_DEFAULT
 
const PARAM_ISMULTI = ParamValidator::PARAM_ISMULTI
 
const PARAM_TYPE = ParamValidator::PARAM_TYPE
 
const PARAM_MAX = IntegerDef::PARAM_MAX
 
const PARAM_MAX2 = IntegerDef::PARAM_MAX2
 
const PARAM_MIN = IntegerDef::PARAM_MIN
 
const PARAM_ALLOW_DUPLICATES = ParamValidator::PARAM_ALLOW_DUPLICATES
 
const PARAM_DEPRECATED = ParamValidator::PARAM_DEPRECATED
 
const PARAM_REQUIRED = ParamValidator::PARAM_REQUIRED
 
const PARAM_SUBMODULE_MAP = SubmoduleDef::PARAM_SUBMODULE_MAP
 
const PARAM_SUBMODULE_PARAM_PREFIX = SubmoduleDef::PARAM_SUBMODULE_PARAM_PREFIX
 
const PARAM_ALL = ParamValidator::PARAM_ALL
 
const PARAM_EXTRA_NAMESPACES = NamespaceDef::PARAM_EXTRA_NAMESPACES
 
const PARAM_SENSITIVE = ParamValidator::PARAM_SENSITIVE
 
const PARAM_DEPRECATED_VALUES = EnumDef::PARAM_DEPRECATED_VALUES
 
const PARAM_ISMULTI_LIMIT1 = ParamValidator::PARAM_ISMULTI_LIMIT1
 
const PARAM_ISMULTI_LIMIT2 = ParamValidator::PARAM_ISMULTI_LIMIT2
 
const PARAM_MAX_BYTES = StringDef::PARAM_MAX_BYTES
 
const PARAM_MAX_CHARS = StringDef::PARAM_MAX_CHARS
 
const PARAM_HELP_MSG = 'api-param-help-msg'
 (string|array|Message) Specify an alternative i18n documentation message for this parameter.
 
const PARAM_HELP_MSG_APPEND = 'api-param-help-msg-append'
 ((string|array|Message)[]) Specify additional i18n messages to append to the normal message for this parameter.
 
const PARAM_HELP_MSG_INFO = 'api-param-help-msg-info'
 (array) Specify additional information tags for the parameter.
 
const PARAM_VALUE_LINKS = 'api-param-value-links'
 Deprecated and unused.
 
const PARAM_HELP_MSG_PER_VALUE = 'api-param-help-msg-per-value'
 ((string|array|Message)[]) When PARAM_TYPE is an array, this is an array mapping those values to $msg for ApiBase::makeMessage().
 
const PARAM_TEMPLATE_VARS = 'param-template-vars'
 (array) Indicate that this is a templated parameter, and specify replacements.
 
const ALL_DEFAULT_STRING = '*'
 (string|array|Message) Specify an alternative i18n documentation message for this parameter.
 
const LIMIT_BIG1 = 500
 Fast query, standard limit.
 
const LIMIT_BIG2 = 5000
 Fast query, apihighlimits limit.
 
const LIMIT_SML1 = 50
 Slow query, standard limit.
 
const LIMIT_SML2 = 500
 Slow query, apihighlimits limit.
 
const GET_VALUES_FOR_HELP = 1
 getAllowedParams() flag: When set, the result could take longer to generate, but should be more thorough.
 
- Static Protected Member Functions inherited from ApiBase
static dieDebug ( $method, $message)
 Internal code errors should be reported with this method.
 

Detailed Description

Query module to get the results of a QueryPage-based special page.

Definition at line 33 of file ApiQueryQueryPage.php.

Constructor & Destructor Documentation

◆ __construct()

ApiQueryQueryPage::__construct ( ApiQuery $query,
$moduleName,
SpecialPageFactory $specialPageFactory )
Parameters
ApiQuery$query
string$moduleName
SpecialPageFactory$specialPageFactory

Definition at line 50 of file ApiQueryQueryPage.php.

References ContextSource\getConfig(), and QueryPage\getPages().

Member Function Documentation

◆ execute()

ApiQueryQueryPage::execute ( )

Evaluates the parameters, performs the requested query, and sets up the result.

Concrete implementations of ApiBase must override this method to provide whatever functionality their module offers. Implementations must not produce any output on their own and are not expected to handle any errors.

The execute() method will be invoked directly by ApiMain immediately before the result of the module is output. Aside from the constructor, implementations should assume that no other methods will be called externally on the module before the result is processed.

The result data should be stored in the ApiResult object available through getResult().

Reimplemented from ApiBase.

Definition at line 63 of file ApiQueryQueryPage.php.

References run().

◆ executeGenerator()

ApiQueryQueryPage::executeGenerator ( $resultPageSet)

Execute this module as a generator.

Parameters
ApiPageSet$resultPageSetAll output should be appended to this object

Reimplemented from ApiQueryGeneratorBase.

Definition at line 67 of file ApiQueryQueryPage.php.

References run().

◆ getAllowedParams()

ApiQueryQueryPage::getAllowedParams ( )

Returns an array of allowed parameters (parameter name) => (default value) or (parameter name) => (array with PARAM_* constants as keys) Don't call this function directly: use getFinalParams() to allow hooks to modify parameters as needed.

Some derived classes may choose to handle an integer $flags parameter in the overriding methods. Callers of this method can pass zero or more OR-ed flags like GET_VALUES_FOR_HELP.

Stability: stable
to override
Returns
array

Reimplemented from ApiBase.

Definition at line 180 of file ApiQueryQueryPage.php.

References ApiBase\LIMIT_BIG1, ApiBase\LIMIT_BIG2, ApiBase\PARAM_HELP_MSG, and true.

◆ getCacheMode()

ApiQueryQueryPage::getCacheMode ( $params)

Get the cache mode for the data generated by this module.

Override this in the module subclass. For possible return values and other details about cache modes, see ApiMain::setCacheMode()

Public caching will only be allowed if all the modules that supply data for a given request return a cache mode of public.

Stability: stable
to override
Parameters
array$params
Returns
string

Reimplemented from ApiQueryBase.

Definition at line 171 of file ApiQueryQueryPage.php.

◆ getExamplesMessages()

ApiQueryQueryPage::getExamplesMessages ( )
protected

Returns usage examples for this module.

Return value has query strings as keys, with values being either strings (message key), arrays (message key + parameter), or Message objects.

Do not call this base class implementation when overriding this method.

Since
1.25
Stability: stable
to override
Returns
array

Reimplemented from ApiBase.

Definition at line 200 of file ApiQueryQueryPage.php.

◆ getHelpUrls()

ApiQueryQueryPage::getHelpUrls ( )

Return links to more detailed help pages about the module.

Since
1.25, returning boolean false is deprecated
Stability: stable
to override
Returns
string|array

Reimplemented from ApiBase.

Definition at line 207 of file ApiQueryQueryPage.php.

◆ run()

ApiQueryQueryPage::run ( $resultPageSet = null)
Parameters
ApiPageSet | null$resultPageSet

Definition at line 96 of file ApiQueryQueryPage.php.

References $res, $title, and wfTimestamp().

Referenced by execute(), and executeGenerator().


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