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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace Dynamic\DynamicBlocks\Block;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Dynamic\DynamicBlocks\Model\PromoObject;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use SheaDawson\Blocks\Model\Block;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use SilverStripe\Forms\GridField\GridField;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use SilverStripe\Forms\GridField\GridFieldConfig_RelationEditor;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Symbiote\GridFieldExtensions\GridFieldAddExistingSearchButton;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Symbiote\GridFieldExtensions\GridFieldOrderableRows;  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                class PromoBlock extends Block  | 
            
            
                                                                        
                            
            
                                    
            
            
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                { | 
            
            
                                                                        
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @return string  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function singular_name()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return _t('PromoBlock.SINGULARNAME', 'Promos Block'); | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                    }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @return string  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function plural_name()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return _t('PromoBlock.PLURALNAME', 'Promos Blocks'); | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                    }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @var array  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    private static $many_many = array(  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        'Promos' => PromoObject::class,  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    );  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @var array  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    private static $many_many_extraFields = array(  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        'Promos' => array(  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            'SortOrder' => 'Int',  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        ),  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    );  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @return FieldList  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function getCMSFields()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $fields = parent::getCMSFields();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $fields->removeByName(array(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            'Promos',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        ));  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if ($this->ID) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $config = GridFieldConfig_RelationEditor::create();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $config->addComponent(new GridFieldOrderableRows('SortOrder')); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $config->removeComponentsByType('GridFieldAddExistingAutocompleter'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $config->addComponent(new GridFieldAddExistingSearchButton());  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $promos = $this->Promos()->sort('SortOrder'); | 
            
                            
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                            $promoField = GridField::create('Promos', 'Promos', $promos, $config); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $fields->addFieldsToTab('Root.Promos', array( | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $promoField,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            ));  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return $fields;  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                    }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @return mixed  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function getPromoList()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return $this->Promos()->sort('SortOrder'); | 
            
                            
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                    }  | 
            
            
                                                        
            
                                    
            
            
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                }  | 
            
            
                        
If you implement
__calland you know which methods are available, you can improve IDE auto-completion and static analysis by adding a @method annotation to the class.This is often the case, when
__callis implemented by a parent class and only the child class knows which methods exist: