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<?php |
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namespace donatj\MySqlSchema\Columns; |
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use donatj\MySqlSchema\Columns\Interfaces\CharsetColumnInterface; |
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use donatj\MySqlSchema\Columns\Interfaces\OptionalLengthInterface; |
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use donatj\MySqlSchema\Columns\Interfaces\RequiredLengthInterface; |
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use donatj\MySqlSchema\Columns\Interfaces\SignedInterface; |
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use donatj\MySqlSchema\Columns\Numeric\AbstractIntegerColumn; |
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use donatj\MySqlSchema\Table; |
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use donatj\MySqlSchema\Traits\EscapeTrait; |
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abstract class AbstractColumn { |
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use EscapeTrait; |
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/** |
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* @var \donatj\MySqlSchema\Table[] |
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*/ |
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protected $tables = [ ]; |
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/** |
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* @var string |
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*/ |
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protected $name; |
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/** |
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* @var string |
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*/ |
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protected $comment = ''; |
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/** |
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* @var bool |
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*/ |
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protected $nullable = false; |
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/** |
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* @var mixed |
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*/ |
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protected $default; |
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/** |
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* @param string $name |
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*/ |
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public function __construct( $name ) { |
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$this->name = $name; |
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} |
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/** |
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* @access private |
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* @param \donatj\MySqlSchema\Table $table |
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*/ |
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public function addTable( Table $table ) { |
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$this->tables[spl_object_hash($table)] = $table; |
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} |
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/** |
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* @return \donatj\MySqlSchema\Table[] |
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*/ |
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public function getTables() { |
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return array_values($this->tables); |
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} |
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/** |
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* @return string |
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*/ |
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public function getComment() { |
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return $this->comment; |
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} |
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/** |
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* @param string $comment |
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*/ |
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public function setComment( $comment ) { |
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$this->comment = $comment; |
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} |
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/** |
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* @return boolean |
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*/ |
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public function isNullable() { |
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return $this->nullable; |
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} |
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/** |
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* @param boolean $nullable |
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*/ |
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public function setNullable( $nullable ) { |
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$this->nullable = $nullable; |
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} |
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/** |
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* @return string |
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*/ |
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public function getName() { |
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return $this->name; |
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} |
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/** |
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* @param string $name |
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*/ |
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public function setName( $name ) { |
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$this->name = $name; |
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} |
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/** |
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* @param \donatj\MySqlSchema\Table $table |
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* @return string |
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*/ |
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public function toString( Table $table ) { |
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$type = $this->getTypeName(); |
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$nullable = ''; |
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if( !$this->nullable ) { |
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$nullable = ' NOT NULL'; |
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} |
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$length = ''; |
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if( $this instanceof RequiredLengthInterface || |
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($this instanceof OptionalLengthInterface && $this->getLength()) |
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) { |
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$l = intval($this->getLength()); |
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$length = "($l)"; |
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} |
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$signed = ''; |
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if( $this instanceof SignedInterface ) { |
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if( !$this->isSigned() ) { |
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$signed = " unsigned"; |
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} |
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} |
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$default = ''; |
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if( !is_null($this->default) ) { |
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$default = ' DEFAULT ' . $this->mkString($this->default, "'");; |
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} |
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$charset = ''; |
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$collation = ''; |
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View Code Duplication |
if( $this instanceof CharsetColumnInterface ) { |
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if( $this->getCharset() ) { |
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$charset = ' CHARACTER SET ' . $this->getCharset(); |
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if( $this->getCollation() ) { |
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$collation = ' COLLATE ' . $this->getCollation(); |
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} |
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} |
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} |
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$comment = ''; |
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if( $this->comment ) { |
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$comment = ' COMMENT ' . $this->mkString($this->comment, "'"); |
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} |
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$autoIncrement = ''; |
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if( $this instanceof AbstractIntegerColumn ) { |
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if( $table->isAutoIncrement($this) ) { |
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$autoIncrement = ' AUTO_INCREMENT'; |
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} |
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} |
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$name = $this->mkString($this->name); |
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return "{$name} {$type}{$length}{$signed}{$charset}{$collation}{$nullable}{$default}{$autoIncrement}{$comment}"; |
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} |
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/** |
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* @return string |
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*/ |
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abstract public function getTypeName(); |
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/** |
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* @return mixed |
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*/ |
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public function getDefault() { |
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return $this->default; |
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} |
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/** |
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* @param mixed $default |
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*/ |
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public function setDefault( $default ) { |
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$this->default = $default; |
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} |
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} |
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Let’s take a look at an example:
In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different sub-classes of User which does not have a getDisplayName() method, the code will break.
Available Fixes
Change the type-hint for the parameter:
Add an additional type-check:
Add the method to the parent class: