SemanticMediaWiki/includes/datavalues/SMW_DV_Bool.php

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<?php
class SMWBoolValue extends SMWDataValue {

        protected $m_truecaption;

        protected $m_falsecaption;

        protected function parseUserValue( $value ) {
                $value = trim( $value );
                if ( $this->m_caption === false ) {
                        $this->m_caption = $value;
                }

                $lcv = strtolower( $value );
                $boolvalue = false;
                if ( $lcv === '1' ) {
                        $boolvalue = true;
                } elseif ( $lcv === '0' ) {
                        $boolvalue = false;
                } elseif ( in_array( $lcv, explode( ',', wfMsgForContent( 'smw_true_words' ) ), true ) ) {
                        $boolvalue = true;
                } elseif ( in_array( $lcv, explode( ',', wfMsgForContent( 'smw_false_words' ) ), true ) ) {
                        $boolvalue = false;
                } else {
                        $this->addError( wfMsgForContent( 'smw_noboolean', $value ) );
                }
                $this->m_dataitem = new SMWDIBoolean( $boolvalue, $this->m_typeid );
        }

        protected function loadDataItem( SMWDataItem $dataItem ) {
                if ( $dataItem->getDIType() == SMWDataItem::TYPE_BOOLEAN ) {
                        $this->m_dataitem = $dataItem;
                        $this->m_caption = $this->getStandardCaption( true ); // use default for this language
                        return true;
                } else {
                        return false;
                }
        }

        public function setOutputFormat( $formatstring ) {
                if ( $formatstring == $this->m_outformat ) return;
                unset( $this->m_truecaption );
                unset( $this->m_falsecaption );
                if ( $formatstring === '' ) { // no format
                        // (unsetting the captions is exactly the right thing here)
                } elseif ( strtolower( $formatstring ) == '-' ) { // "plain" format
                        $this->m_truecaption = 'true';
                        $this->m_falsecaption = 'false';
                } elseif ( strtolower( $formatstring ) == 'x' ) { // X format
                        $this->m_truecaption = '<span style="font-family: sans-serif; ">X</span>';
                        $this->m_falsecaption = '';
                } else { // format "truelabel, falselabel" (hopefully)
                        $captions = explode( ',', $formatstring, 2 );
                        if ( count( $captions ) == 2 ) { // note: escaping needed to be safe; MW-sanitising would be an alternative
                                $this->m_truecaption = htmlspecialchars( trim( $captions[0] ) );
                                $this->m_falsecaption = htmlspecialchars( trim( $captions[1] ) );
                        } // else: no format that is recognised, ignore
                }
                $this->m_caption = $this->getStandardCaption( true );
                $this->m_outformat = $formatstring;
        }

        public function getShortWikiText( $linked = null ) {
                return $this->m_caption;
        }

        public function getShortHTMLText( $linker = null ) {
                return $this->m_caption;
        }

        public function getLongWikiText( $linked = null ) {
                return $this->isValid() ? $this->getStandardCaption( true ) : $this->getErrorText();
        }

        public function getLongHTMLText( $linker = null ) {
                return $this->isValid() ? $this->getStandardCaption( true ) : $this->getErrorText();
        }

        public function getWikiValue() {
                return $this->getStandardCaption( false );
        }

        public function getBoolean() {
                return $this->m_dataitem->getBoolean();
        }

        protected function getStandardCaption( $useformat ) {
                if ( !$this->isValid() ) return false;
                if ( $useformat && ( isset( $this->m_truecaption ) ) ) {
                        return $this->m_dataitem->getBoolean() ? $this->m_truecaption : $this->m_falsecaption;
                } else {
                        $vals = explode( ',', wfMsgForContent( $this->m_dataitem->getBoolean() ? 'smw_true_words' : 'smw_false_words' ) );
                        return reset( $vals );
                }
        }

}

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