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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace yentu\database;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use yentu\Parameters;  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                class Column extends DatabaseItem implements Commitable, Changeable, Initializable  | 
            
            
                                                                        
                            
            
                                    
            
            
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                { | 
            
            
                                                                        
                            
            
                                    
            
            
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                    private $type;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    private $table;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    private $length;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    // Description items  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    private $nulls;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    private $name;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    private $default;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    #[\Override]  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    public function buildDescription()  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    { | 
            
            
                                                                        
                            
            
                                    
            
            
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                        return array(  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            'name' => $this->name,  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            'type' => $this->type,  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            'table' => $this->table->getName(),  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            'schema' => $this->table->getSchema()->getName(),  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            'nulls' => $this->nulls,  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            'length' => $this->length,  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            'default' => $this->default  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        );  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    public function __construct($name, $table)  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    { | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $this->table = $table;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $this->name = $name;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    #[\Override]  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    public function initialize()  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    { | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $column = Parameters::wrap($this->getChangeLogger()->doesColumnExist(  | 
            
                            
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                                array(  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                    'table' => $this->table->getName(),  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                    'schema' => $this->table->getSchema()->getName(),  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                    'name' => $this->name  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                )  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            ),  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            ['default', 'length', 'nulls', 'type']  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        );  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        if($column === false) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                            $this->new = true;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        } else { | 
            
            
                                                                        
                            
            
                                    
            
            
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                            $this->default = $column['default'];  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            $this->length = $column['length'];  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            $this->type = $column['type'];  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            $this->nulls = $column['nulls'];  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        }          | 
            
            
                                                                        
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    public function type($type)  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    { | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $this->type = $type;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        return $this;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    public function nulls($nulls)  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    { | 
            
            
                                                                        
                            
            
                                    
            
            
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                       return $this->addChange('nulls', 'nulls', $nulls); | 
            
            
                                                                        
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    public function required(bool $required)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                        return $this->addChange('nulls', 'nulls', !$required); | 
            
            
                                                                        
                                                                
            
                                    
            
            
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                    }  | 
            
            
                                                                        
                                                                
            
                                    
            
            
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                    public function defaultValue($default)  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    { | 
            
            
                                                                        
                            
            
                                    
            
            
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                        return $this->addChange('default', 'default', $default); | 
            
            
                                                                        
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    #[\Override]  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function commitNew()   | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                        $this->getChangeLogger()->addColumn($this->buildDescription());  | 
            
                            
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                    }  | 
            
            
                                                                        
                                                                
            
                                    
            
            
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                    public function length($length)  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    { | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $this->length = $length;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        return $this;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    public function drop()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->getChangeLogger()->dropColumn($this->buildDescription());  | 
            
                            
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                        return $this;  | 
            
            
                                                                        
                                                                
            
                                    
            
            
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                    }  | 
            
            
                                                                        
                                                                
            
                                    
            
            
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                }  | 
            
            
                                                                        
                                                                
            
                                    
            
            
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