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<?php |
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namespace Rentgen\Database\Constraint; |
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use Rentgen\Database\Table; |
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class PrimaryKey implements ConstraintInterface |
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{ |
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private $columns; |
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private $isAutoIncrement = true; |
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private $autoCreateColumn = false; |
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private $table; |
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/** |
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* Constructor. |
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* |
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* @param array|string $columns Column names. |
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* @param Table $table Table instance. |
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*/ |
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public function __construct($columns = null, Table $table = null) |
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{ |
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$this->columns = is_string($columns) ? array($columns) : $columns; |
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if (empty($this->columns)) { |
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$this->autoCreateColumn = true; |
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} |
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$this->table = $table; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getName() |
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{ |
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return $this->table->getName() . '_pkey'; |
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} |
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// TODO hmmmmmm.... |
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public function getColumns() |
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{ |
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return empty($this->columns) |
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? $this->table->getName() . '_id' |
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: implode(',', $this->columns); |
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} |
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/** |
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* Return true if the primary key is auto create column. |
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* |
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* @return bool Auto create column |
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*/ |
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public function isAutoCreateColumn() |
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{ |
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return $this->autoCreateColumn; |
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} |
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/** |
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* Return true if the primary key is multi. |
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* |
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* @return bool Multi columns. |
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*/ |
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public function isMulti() |
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{ |
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return count($this->columns) > 1; |
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} |
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/** |
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* Disable auto increment. |
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* |
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* @return PrimaryKey Self. |
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*/ |
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public function disableAutoIncrement() |
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{ |
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$this->isAutoIncrement = false; |
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return $this; |
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} |
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/** |
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* Return true if the primary key is auto increment. |
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* |
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* @return bool Auto increment. |
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*/ |
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public function isAutoIncrement() |
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{ |
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return true === $this->isAutoIncrement; |
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} |
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// TODO Remove this code |
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public function __toString() |
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{ |
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return sprintf('CONSTRAINT %s PRIMARY KEY (%s)' |
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, $this->getName() |
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, $this->getColumns() |
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); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getTable() |
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{ |
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return $this->table; |
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} |
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/** |
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* Set table instance. |
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* |
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* @param Table $table Table instance. |
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* |
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* @return PrimaryKey Self. |
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*/ |
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public function setTable(Table $table) |
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{ |
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$this->table = $table; |
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return $this; |
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} |
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} |
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czogori /
Rentgen
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