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| 1 | <?php |
| 2 | |
| 3 | namespace MediaWiki\Extension\PageAssessments\Api; |
| 4 | |
| 5 | use ApiBase; |
| 6 | use ApiPageSet; |
| 7 | use ApiQuery; |
| 8 | use ApiQueryGeneratorBase; |
| 9 | use MediaWiki\Extension\PageAssessments\PageAssessmentsDAO; |
| 10 | use MediaWiki\Title\Title; |
| 11 | use Wikimedia\ParamValidator\ParamValidator; |
| 12 | use Wikimedia\ParamValidator\TypeDef\IntegerDef; |
| 13 | |
| 14 | /* |
| 15 | * API module for retrieving all the pages associated with a project, for example, |
| 16 | * WikiProject Medicine. (T119997) |
| 17 | */ |
| 18 | class ApiQueryProjectPages extends ApiQueryGeneratorBase { |
| 19 | |
| 20 | /** |
| 21 | * Array of project IDs for the projects listed in the API query |
| 22 | * @var array |
| 23 | */ |
| 24 | private $projectIds = []; |
| 25 | |
| 26 | /** @inheritDoc */ |
| 27 | public function __construct( ApiQuery $query, $moduleName ) { |
| 28 | // The prefix pp is already used by the pageprops module, so using wpp instead. |
| 29 | parent::__construct( $query, $moduleName, 'wpp' ); |
| 30 | } |
| 31 | |
| 32 | /** |
| 33 | * Evaluate the parameters, perform the requested query, and set up the result |
| 34 | */ |
| 35 | public function execute() { |
| 36 | $this->run(); |
| 37 | } |
| 38 | |
| 39 | /** |
| 40 | * Evaluate the parameters, perform the requested query, and set up the result for generator mode |
| 41 | * @param ApiPageSet $resultPageSet |
| 42 | */ |
| 43 | public function executeGenerator( $resultPageSet ) { |
| 44 | $this->run( $resultPageSet ); |
| 45 | } |
| 46 | |
| 47 | /** |
| 48 | * @param ApiPageSet|null $resultPageSet |
| 49 | */ |
| 50 | private function run( $resultPageSet = null ) { |
| 51 | $params = $this->extractRequestParams(); |
| 52 | |
| 53 | if ( $params['assessments'] && $resultPageSet !== null ) { |
| 54 | $this->addWarning( 'apiwarn-pageassessments-nogeneratorassessments' ); |
| 55 | } |
| 56 | |
| 57 | $this->buildDbQuery( $params, $resultPageSet ); |
| 58 | |
| 59 | // If matching projects were found, run the query. |
| 60 | if ( $this->projectIds ) { |
| 61 | $db_res = $this->select( __METHOD__ ); |
| 62 | // Otherwise, just set the result to an empty array (still works with foreach). |
| 63 | } else { |
| 64 | $db_res = []; |
| 65 | } |
| 66 | |
| 67 | if ( $resultPageSet === null ) { |
| 68 | $result = $this->getResult(); |
| 69 | $count = 0; |
| 70 | foreach ( $db_res as $row ) { |
| 71 | if ( ++$count > $params['limit'] ) { |
| 72 | $this->setContinueEnumParameter( 'continue', "$row->project_id|$row->page_id" ); |
| 73 | break; |
| 74 | } |
| 75 | |
| 76 | // Change project id back into its corresponding project title |
| 77 | $projectTitle = $row->project_name; |
| 78 | if ( !$projectTitle ) { |
| 79 | continue; |
| 80 | } |
| 81 | |
| 82 | // Add information to result |
| 83 | $vals = $this->generateResultVals( $row ); |
| 84 | $fit = $result->addValue( |
| 85 | [ 'query', 'projects', $projectTitle ], $row->page_id, $vals |
| 86 | ); |
| 87 | |
| 88 | if ( !$fit ) { |
| 89 | $this->setContinueEnumParameter( 'continue', "$row->project_id|$row->page_id" ); |
| 90 | break; |
| 91 | } |
| 92 | |
| 93 | // Add metadata to make XML results for pages parse better |
| 94 | $result->addIndexedTagName( [ 'query', 'projects', $projectTitle ], 'page' ); |
| 95 | $result->addArrayType( [ 'query', 'projects', $projectTitle ], 'array' ); |
| 96 | } |
| 97 | // Add metadata to make XML results for projects parse better |
| 98 | $result->addIndexedTagName( [ 'query', 'projects' ], 'project' ); |
| 99 | $result->addArrayType( [ 'query', 'projects' ], 'kvp', 'name' ); |
| 100 | } else { |
| 101 | $count = 0; |
| 102 | foreach ( $db_res as $row ) { |
| 103 | if ( ++$count > $params['limit'] ) { |
| 104 | $this->setContinueEnumParameter( 'continue', "$row->project_id|$row->page_id" ); |
| 105 | break; |
| 106 | } |
| 107 | |
| 108 | $resultPageSet->processDbRow( $row ); |
| 109 | } |
| 110 | } |
| 111 | } |
| 112 | |
| 113 | /** |
| 114 | * @param array $params |
| 115 | * @param ApiPageSet|null $resultPageSet |
| 116 | */ |
| 117 | private function buildDbQuery( array $params, $resultPageSet ) { |
| 118 | $this->addTables( [ 'page', 'page_assessments' ] ); |
| 119 | $this->addFields( [ |
| 120 | 'page_id' => 'pa_page_id', |
| 121 | 'project_id' => 'pa_project_id', |
| 122 | ] ); |
| 123 | $this->addJoinConds( [ |
| 124 | 'page' => [ |
| 125 | 'JOIN', |
| 126 | [ 'page_id = pa_page_id' ], |
| 127 | ] |
| 128 | ] ); |
| 129 | |
| 130 | if ( $resultPageSet === null ) { |
| 131 | $this->addTables( 'page_assessments_projects' ); |
| 132 | $this->addFields( [ |
| 133 | 'title' => 'page_title', |
| 134 | 'namespace' => 'page_namespace', |
| 135 | 'project_name' => 'pap_project_title' |
| 136 | ] ); |
| 137 | $this->addJoinConds( [ |
| 138 | 'page_assessments_projects' => [ |
| 139 | 'JOIN', |
| 140 | [ 'pa_project_id = pap_project_id' ], |
| 141 | ] |
| 142 | ] ); |
| 143 | if ( $params['assessments'] ) { |
| 144 | $this->addFields( [ |
| 145 | 'class' => 'pa_class', |
| 146 | 'importance' => 'pa_importance' |
| 147 | ] ); |
| 148 | } |
| 149 | } else { |
| 150 | $this->addFields( $resultPageSet->getPageTableFields() ); |
| 151 | } |
| 152 | |
| 153 | if ( isset( $params['projects'] ) ) { |
| 154 | // Convert the project names into corresponding IDs |
| 155 | foreach ( $params['projects'] as $project ) { |
| 156 | $id = PageAssessmentsDAO::getProjectId( $project ); |
| 157 | if ( $id ) { |
| 158 | $this->projectIds[] = $id; |
| 159 | } else { |
| 160 | $this->addWarning( [ 'apiwarn-pageassessments-badproject', |
| 161 | wfEscapeWikiText( $project ) ] ); |
| 162 | } |
| 163 | } |
| 164 | } |
| 165 | |
| 166 | // DB stores project IDs, so that's what goes into the where field |
| 167 | $this->addWhereFld( 'pa_project_id', $this->projectIds ); |
| 168 | $this->addOption( 'LIMIT', $params['limit'] + 1 ); |
| 169 | |
| 170 | if ( $params['continue'] !== null ) { |
| 171 | $this->handleQueryContinuation( $params['continue'] ); |
| 172 | } |
| 173 | |
| 174 | // If more than 1 project is requested, order by project first. |
| 175 | if ( count( $this->projectIds ) > 1 ) { |
| 176 | $this->addOption( 'ORDER BY', [ 'pa_project_id', 'pa_page_id' ] ); |
| 177 | } else { |
| 178 | $this->addOption( 'ORDER BY', 'pa_page_id' ); |
| 179 | } |
| 180 | } |
| 181 | |
| 182 | /** |
| 183 | * @param string $continueParam |
| 184 | */ |
| 185 | private function handleQueryContinuation( $continueParam ) { |
| 186 | $continues = $this->parseContinueParamOrDie( $continueParam, [ 'int', 'int' ] ); |
| 187 | $this->addWhere( $this->getDB()->buildComparison( '>=', [ |
| 188 | 'pa_project_id' => $continues[0], |
| 189 | 'pa_page_id' => $continues[1], |
| 190 | ] ) ); |
| 191 | } |
| 192 | |
| 193 | /** |
| 194 | * @param \stdClass $row |
| 195 | * @return array |
| 196 | */ |
| 197 | private function generateResultVals( $row ) { |
| 198 | $title = Title::makeTitle( $row->namespace, $row->title ); |
| 199 | |
| 200 | $vals = [ |
| 201 | 'pageid' => (int)$row->page_id, |
| 202 | 'ns' => (int)$row->namespace, |
| 203 | 'title' => $title->getPrefixedText(), |
| 204 | ]; |
| 205 | |
| 206 | if ( isset( $row->class ) && isset( $row->importance ) ) { |
| 207 | $vals['assessment'] = [ |
| 208 | 'class' => $row->class, |
| 209 | 'importance' => $row->importance, |
| 210 | ]; |
| 211 | } |
| 212 | |
| 213 | return $vals; |
| 214 | } |
| 215 | |
| 216 | /** @inheritDoc */ |
| 217 | public function getAllowedParams() { |
| 218 | return [ |
| 219 | 'assessments' => [ |
| 220 | ParamValidator::PARAM_DEFAULT => false, |
| 221 | ParamValidator::PARAM_TYPE => 'boolean', |
| 222 | ], |
| 223 | 'projects' => [ |
| 224 | ParamValidator::PARAM_ISMULTI => true, |
| 225 | ParamValidator::PARAM_REQUIRED => true, |
| 226 | ], |
| 227 | 'limit' => [ |
| 228 | ParamValidator::PARAM_DEFAULT => 10, |
| 229 | ParamValidator::PARAM_TYPE => 'limit', |
| 230 | IntegerDef::PARAM_MIN => 1, |
| 231 | IntegerDef::PARAM_MAX => ApiBase::LIMIT_BIG1, |
| 232 | IntegerDef::PARAM_MAX2 => ApiBase::LIMIT_BIG2, |
| 233 | ], |
| 234 | 'continue' => [ |
| 235 | ApiBase::PARAM_HELP_MSG => 'api-help-param-continue', |
| 236 | ], |
| 237 | ]; |
| 238 | } |
| 239 | |
| 240 | /** @inheritDoc */ |
| 241 | public function getExamplesMessages() { |
| 242 | return [ |
| 243 | 'action=query&list=projectpages&wppprojects=Medicine|Anatomy' |
| 244 | => 'apihelp-query+projectpages-example-simple-1', |
| 245 | 'action=query&list=projectpages&wppprojects=Medicine&wppassessments=true' |
| 246 | => 'apihelp-query+projectpages-example-simple-2', |
| 247 | 'action=query&generator=projectpages&prop=info&gwppprojects=Textile%20Arts' |
| 248 | => 'apihelp-query+projectpages-example-generator', |
| 249 | ]; |
| 250 | } |
| 251 | |
| 252 | /** @inheritDoc */ |
| 253 | public function getHelpUrls() { |
| 254 | return 'https://www.mediawiki.org/wiki/Special:MyLanguage/Extension:PageAssessments'; |
| 255 | } |
| 256 | } |