CartService
class CartService
Methods
                    __construct(Session $session, EntityManager $entityManager)
        
                                            
                
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                    save()
        
                                            
                
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                    unlock()
        
                                            
                
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                    lock()
        
                                            
                
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                    bool
                
                
                    isLocked()
        
                                            
                
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                    setPreOrderId(string $pre_order_id)
        
                                            
                
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                    string
                
                
                    getPreOrderId()
        
                                            
                
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                    clear()
        
                                            
                
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                    getCart()
        
                                            
                
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                    boolean
                
                
                    canAddProduct(string $productClassId)
        
                                            
                
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                    getCanAddProductType()
        
                                            
                
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                    addProduct(string $productClassId, integer $quantity = 1)
        
                                            
                
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                    integer
                
                
                    getProductQuantity(string $productClassId)
        
                                            
                
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                    upProductQuantity(string $productClassId)
        
                                            
                
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                    downProductQuantity(string $productClassId)
        
                                            
                
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                    removeProduct(string $productClassId)
        
                                            
                
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                    string[]
                
                
                    getErrors()
        
                                            
                
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                    addError(string $error = null)
        
                                            
                
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                    string[]
                
                
                    getMessages()
        
                                            
                
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                    setMessage(string $message)
        
                                            
                
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