wikimedia / mediawiki

		$fld_title = isset( $prop['title'] );

		$fld_value = isset( $prop['value'] );

		if ( $resultPageSet === null ) {

			$this->addFields( [ 'page_id' ] );

			$this->addFieldsIf( [ 'page_title', 'page_namespace' ], $fld_title );

			$this->addFieldsIf( 'pp_value', $fld_value );

		} else {

			$this->addFields( $resultPageSet->getPageTableFields() );

		}

		$this->addTables( [ 'page_props', 'page' ] );

		$this->addWhere( 'pp_page=page_id' );

		$this->addWhereFld( 'pp_propname', $params['propname'] );

		$fld_title = isset( $prop['title'] );

		$fld_url = isset( $prop['url'] );

		if ( is_null( $resultPageSet ) ) {

			$this->addFields( [

				'page_id',

				'page_namespace',

				'page_title'

			] );

			$this->addFieldsIf( 'el_to', $fld_url );

		} else {

			$this->addFields( $resultPageSet->getPageTableFields() );

		}

		$limit = $params['limit'];

		$offset = $params['offset'];