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| 1 | <?php |
| 2 | |
| 3 | namespace MediaWiki\Extension\PageAssessments\Api; |
| 4 | |
| 5 | use ApiBase; |
| 6 | use ApiQuery; |
| 7 | use ApiQueryBase; |
| 8 | use Wikimedia\ParamValidator\ParamValidator; |
| 9 | use Wikimedia\ParamValidator\TypeDef\IntegerDef; |
| 10 | |
| 11 | /* |
| 12 | * API query module that returns associated projects and assessment data for a given set |
| 13 | * of pages. (T119997) |
| 14 | */ |
| 15 | class ApiQueryPageAssessments extends ApiQueryBase { |
| 16 | |
| 17 | /** @inheritDoc */ |
| 18 | public function __construct( ApiQuery $query, $moduleName ) { |
| 19 | parent::__construct( $query, $moduleName, 'pa' ); |
| 20 | } |
| 21 | |
| 22 | /** |
| 23 | * Evaluate the parameters, perform the requested query, and set up the result |
| 24 | */ |
| 25 | public function execute() { |
| 26 | $params = $this->extractRequestParams(); |
| 27 | $pages = $this->getPageSet()->getGoodTitles(); |
| 28 | // are there pages to get project/assessment info for? |
| 29 | if ( !count( $pages ) ) { |
| 30 | return; // If not, return so other prop modules can run |
| 31 | } |
| 32 | |
| 33 | $this->buildDbQuery( $pages, $params ); |
| 34 | $db_res = $this->select( __METHOD__ ); |
| 35 | |
| 36 | // API result |
| 37 | $result = $this->getResult(); |
| 38 | |
| 39 | $count = 0; |
| 40 | foreach ( $db_res as $row ) { |
| 41 | // One more than limit, so there are additional projects in the list |
| 42 | if ( ++$count > $params['limit'] ) { |
| 43 | $this->setContinueEnumParameter( 'continue', "$row->page_id|$row->project_id" ); |
| 44 | break; |
| 45 | } |
| 46 | |
| 47 | $projectValues = [ |
| 48 | 'class' => $row->class, |
| 49 | 'importance' => $row->importance, |
| 50 | ]; |
| 51 | |
| 52 | $projectName = $row->project_name; |
| 53 | // If the project name can't be found, skip adding it to the results. |
| 54 | if ( !$projectName ) { |
| 55 | continue; |
| 56 | } |
| 57 | |
| 58 | $fit = $result->addValue( |
| 59 | [ 'query', 'pages', $row->page_id, $this->getModuleName() ], |
| 60 | $projectName, |
| 61 | $projectValues |
| 62 | ); |
| 63 | |
| 64 | if ( !$fit ) { |
| 65 | $this->setContinueEnumParameter( 'continue', "$row->page_id|$row->project_id" ); |
| 66 | break; |
| 67 | } |
| 68 | |
| 69 | // Make it easier to parse XML-formatted results |
| 70 | $result->addArrayType( |
| 71 | [ 'query', 'pages', $row->page_id, $this->getModuleName() ], 'kvp', 'project' |
| 72 | ); |
| 73 | $result->addIndexedTagName( |
| 74 | [ 'query', 'pages', $row->page_id, $this->getModuleName() ], 'p' |
| 75 | ); |
| 76 | } |
| 77 | } |
| 78 | |
| 79 | /** |
| 80 | * @param array $pages |
| 81 | * @param array $params |
| 82 | */ |
| 83 | private function buildDbQuery( array $pages, array $params ) { |
| 84 | global $wgPageAssessmentsSubprojects; |
| 85 | |
| 86 | // build basic DB query |
| 87 | $this->addTables( [ 'page_assessments', 'page_assessments_projects' ] ); |
| 88 | $this->addFields( [ |
| 89 | 'project_id' => 'pa_project_id', |
| 90 | 'class' => 'pa_class', |
| 91 | 'importance' => 'pa_importance', |
| 92 | 'page_id' => 'pa_page_id', |
| 93 | 'project_name' => 'pap_project_title' |
| 94 | ] ); |
| 95 | $this->addJoinConds( [ |
| 96 | 'page_assessments_projects' => [ |
| 97 | 'JOIN', |
| 98 | [ 'pa_project_id = pap_project_id' ], |
| 99 | ] |
| 100 | ] ); |
| 101 | $this->addWhereFld( 'pa_page_id', array_keys( $pages ) ); |
| 102 | // If this wiki distinguishes between projects and subprojects, exclude |
| 103 | // subprojects (i.e. projects with parents) unless explicitly asked for. |
| 104 | if ( $wgPageAssessmentsSubprojects && !$params['subprojects'] ) { |
| 105 | $this->addWhere( [ 'pap_parent_id' => null ] ); |
| 106 | } |
| 107 | $this->addOption( 'LIMIT', $params['limit'] + 1 ); |
| 108 | |
| 109 | // handle continuation if present |
| 110 | if ( $params['continue'] !== null ) { |
| 111 | $this->handleQueryContinuation( $params['continue'] ); |
| 112 | } |
| 113 | |
| 114 | // assure strict ordering, but mysql gets cranky if you order by a field |
| 115 | // when there's only one to sort |
| 116 | if ( count( $pages ) > 1 ) { |
| 117 | $this->addOption( 'ORDER BY', [ 'pa_page_id', 'pa_project_id' ] ); |
| 118 | } else { |
| 119 | $this->addOption( 'ORDER BY', 'pa_project_id' ); |
| 120 | } |
| 121 | } |
| 122 | |
| 123 | /** |
| 124 | * @param string $continueParam |
| 125 | */ |
| 126 | private function handleQueryContinuation( $continueParam ) { |
| 127 | $continues = $this->parseContinueParamOrDie( $continueParam, [ 'int', 'int' ] ); |
| 128 | $this->addWhere( $this->getDB()->buildComparison( '>=', [ |
| 129 | 'pa_page_id' => $continues[0], |
| 130 | 'pa_project_id' => $continues[1], |
| 131 | ] ) ); |
| 132 | } |
| 133 | |
| 134 | /** @inheritDoc */ |
| 135 | public function getAllowedParams() { |
| 136 | global $wgPageAssessmentsSubprojects; |
| 137 | |
| 138 | $allowedParams = [ |
| 139 | 'continue' => [ ApiBase::PARAM_HELP_MSG => 'api-help-param-continue' ], |
| 140 | 'limit' => [ |
| 141 | ParamValidator::PARAM_DEFAULT => 10, |
| 142 | ParamValidator::PARAM_TYPE => 'limit', |
| 143 | IntegerDef::PARAM_MIN => 1, |
| 144 | IntegerDef::PARAM_MAX => ApiBase::LIMIT_BIG1, |
| 145 | IntegerDef::PARAM_MAX2 => ApiBase::LIMIT_BIG2, |
| 146 | ], |
| 147 | ]; |
| 148 | if ( $wgPageAssessmentsSubprojects ) { |
| 149 | $allowedParams[ 'subprojects' ] = [ |
| 150 | ParamValidator::PARAM_DEFAULT => false, |
| 151 | ParamValidator::PARAM_TYPE => 'boolean', |
| 152 | ]; |
| 153 | } |
| 154 | return $allowedParams; |
| 155 | } |
| 156 | |
| 157 | /** @inheritDoc */ |
| 158 | public function getExamplesMessages() { |
| 159 | global $wgPageAssessmentsSubprojects; |
| 160 | |
| 161 | $exampleMessages = [ |
| 162 | 'action=query&prop=pageassessments&titles=Apple|Pear&formatversion=2' |
| 163 | => 'apihelp-query+pageassessments-example-formatversion', |
| 164 | 'action=query&prop=pageassessments&titles=Apple' |
| 165 | => 'apihelp-query+pageassessments-example-simple', |
| 166 | ]; |
| 167 | if ( $wgPageAssessmentsSubprojects ) { |
| 168 | $exampleMessages['action=query&prop=pageassessments&titles=Apple&pasubprojects=true'] = |
| 169 | 'apihelp-query+pageassessments-example-subprojects'; |
| 170 | } |
| 171 | return $exampleMessages; |
| 172 | } |
| 173 | |
| 174 | /** @inheritDoc */ |
| 175 | public function getHelpUrls() { |
| 176 | return 'https://www.mediawiki.org/wiki/Special:MyLanguage/Extension:PageAssessments'; |
| 177 | } |
| 178 | } |