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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace StoutLogic\AcfBuilder;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                class FlexibleContentBuilder extends Builder  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private $config = [];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private $layouts = [];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private $name;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function __construct($name, $args = [])  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->name = $name;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->config = array_merge(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            [  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                'key' => $name,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                'name' => $name,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                'label' => $this->generateLabel($name),  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                'type' => 'flexible_content',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            ],  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $args  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if (!isset($this->config['button'])) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $this->config['button'] = 'Add '.rtrim($this->config['label'], 's');  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function build()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return array_merge($this->config, [  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            'layouts' => $this->buildLayouts(),  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        ]);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private function buildLayouts()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return array_map(function($layout) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $layout = ($layout instanceof Builder) ? $layout->build() : $layout;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            return $this->transformLayout($layout);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }, $this->getLayouts());  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private function transformLayout($layout)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $layoutTransform = new Transform\FlexibleContentLayout($this);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $namespaceTransform = new Transform\NamespaceFieldKey($this);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $namespaceTransform->transform(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                $layoutTransform->transform($layout)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function getName()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return $this->name;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function addLayout($layout, $args = [])  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if ($layout instanceof Builder) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $layout = clone $layout;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        } else { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $layout = new FieldsBuilder($layout, $args);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $layout->setGroupConfig('name', $layout->getName()); | 
            
                            
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                        $layout->setGroupConfig('display', 'block'); | 
            
                            
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                        foreach ($args as $key => $value) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $layout->setGroupConfig($key, $value);  | 
            
                            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $layout->setParentContext($this);  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $this->pushLayout($layout);  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        return $layout;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    public function endFlexibleContent()  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    { | 
            
            
                                                                        
                            
            
                                    
            
            
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                        return $this->getParentContext();  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    protected function pushLayout($layout)  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->layouts[] = $layout;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function getLayouts()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return $this->layouts;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    protected function generateLabel($name)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return ucwords(str_replace("_", " ", $name)); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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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: