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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * This field lets you put an arbitrary message into your backend.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * <code>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * Message::generic(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *    $content = 'your message'  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * )  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * </code>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * or with the optional name parameter  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * <code>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * Message::generic(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *    $content = 'your message',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *    $CSSClass = null,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *    $name = 'fieldName'  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * )  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * </code>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                class Message  | 
            
                            
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                { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * Creates a error message.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param string $message  | 
            
                            
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                     * @param string $CSSClass (optional)  | 
            
                            
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                     * @param string $name (optional)  | 
            
                            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return MessageBoxField  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public static function generic($message = null, $CSSClass = null, $name = null)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        // ensure that we are having a name as well as keeping it consistent with the original behaviour  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if ($name == null) { | 
            
                            
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                            $name = md5($message);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return MessageBoxField::create(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $name,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $message  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        )->addCSSClass($CSSClass);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * Creates a error message.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param string $message  | 
            
                            
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                     * @param string $name (optional)  | 
            
                            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return MessageBoxField  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public static function error($message = null, $name = null)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return self::generic($message, ErrorMessage::$CSSClass, $name);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * Creates a warning message.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param string $message  | 
            
                            
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                     * @param string $name (optional)  | 
            
                            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return MessageBoxField  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public static function warning($message = null, $name = null)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return self::generic($message, WarningMessage::$CSSClass, $name);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * Creates a success message.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param string $message  | 
            
                            
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                     * @param string $name (optional)  | 
            
                            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return MessageBoxField  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public static function success($message = null, $name = null)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return self::generic($message, SuccessMessage::$CSSClass, $name);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * Creates a notice message.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @param string $message  | 
            
                            
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                     * @param string $name (optional)  | 
            
                            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @return MessageBoxField  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                     */  | 
            
            
                                                        
            
                                    
            
            
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                    public static function notice($message = null, $name = null)  | 
            
            
                                                        
            
                                    
            
            
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                        return self::generic($message, NoticeMessage::$CSSClass, $name);  | 
            
            
                                                        
            
                                    
            
            
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                    }  | 
            
            
                                                        
            
                                    
            
            
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                }  | 
            
            
                                                        
            
                                    
            
            
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You can fix this by adding a namespace to your class:
When choosing a vendor namespace, try to pick something that is not too generic to avoid conflicts with other libraries.