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                <?php  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                class SEOToolboxSiteTreeExtension extends DataExtension { | 
            
            
                                                                        
                            
            
                                    
            
            
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                    private static $db = array(  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        'MetaTitle' => 'VARCHAR(255)'  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    );  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    public function MetaTags($tags) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $tags = preg_replace('/<title(.*?)<\/title>/im', '', $tags); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $title = ($this->owner->MetaTitle) ? $this->owner->MetaTitle : $this->owner->Title;  | 
            
                            
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                        $tags .= "<title>{$title}</title>"; | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return $tags;  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                    }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    public function updateCMSFields(FieldList $fields) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $fields->removeByName('Metadata'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $fields->addFieldsToTab('Root.SEO', array( | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            TextField::create("MetaTitle", | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                _t('SEOToolbox.SEOMetaTitle', 'Meta title') | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            )->setRightTitle(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                _t('SEOToolbox.SEOMetaTitleHelp', | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    'Name of the page, search engines use this as title of search results.   | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    If unset, the page title will be used.')  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            ),  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            TextareaField::create("MetaDescription", $this->owner->fieldLabel('MetaDescription')) | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                ->setRightTitle(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    _t('SEOToolbox.METADESCHELP', | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                        "Search engines use this content for displaying search results   | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                        (although it will not influence their ranking).")  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                )->addExtraClass('help'), | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            TextareaField::create("ExtraMeta", $this->owner->fieldLabel('ExtraMeta')) | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                ->setRightTitle(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    _t('SEOToolbox.METAEXTRAHELP', | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                        "HTML tags for additional meta information. For example <meta name=\"customName\"   | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                        content=\"your custom content here\" />")  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                )->addExtraClass('help'), | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            SEOToolboxAnalyzerField::create('Analyzer', $this->owner->URLSegment), | 
            
                            
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                        ));  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                    }  | 
            
            
                                                        
            
                                    
            
            
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                }  | 
            
            
                                                        
            
                                    
            
            
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An attempt at access to an undefined property has been detected. This may either be a typographical error or the property has been renamed but there are still references to its old name.
If you really want to allow access to undefined properties, you can define magic methods to allow access. See the php core documentation on Overloading.