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<?php |
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namespace Classes\Db\Iterators; |
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use Classes\Db\DbTable; |
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use Classes\Maker\AbstractMaker; |
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class DbTables implements \ArrayAccess , \SeekableIterator , \Countable |
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{ |
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/** |
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* @type DbTable[] |
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*/ |
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private $objDbTables = array (); |
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private $position = 0; |
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public function offsetExists ( $offset ) |
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{ |
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return isset( $this->objDbTables[ trim ( $offset ) ] ); |
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} |
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public function offsetGet ( $offset ) |
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{ |
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return $this->objDbTables[ trim ( $offset ) ]; |
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} |
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public function offsetSet ( $offset , $value ) |
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{ |
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return $this->objDbTables[ trim ( $offset ) ] = $value; |
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} |
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public function offsetUnset ( $offset ) |
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{ |
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unset( $this->objDbTables[ trim ( $offset ) ] ); |
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return $this; |
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} |
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public function count () |
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{ |
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return count ( $this->objDbTables ); |
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} |
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/** |
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* convert array |
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*/ |
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public function toArrayFileName () |
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{ |
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if ( ! empty( $this->toArrayFileName ) ) |
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{ |
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return $this->toArrayFileName; |
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} |
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foreach ( $this->objDbTables as $objDbTable ) |
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{ |
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$this->toArrayFileName[] = AbstractMaker::getClassName ( $objDbTable->getName () ) |
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. '.php'; |
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} |
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return $this->toArrayFileName; |
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} |
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/* Method required for SeekableIterator interface */ |
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public function seek ( $position ) |
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{ |
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$current = array_keys ( $this->objDbTables ); |
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if ( ! isset( $this->objDbTables[ $current[ $position ] ] ) ) |
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{ |
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throw new OutOfBoundsException( "invalid seek position ($position)" ); |
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} |
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$this->position = $position; |
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} |
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/* Methods required for Iterator interface */ |
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public function rewind () |
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{ |
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$this->position = 0; |
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} |
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public function current () |
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{ |
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$current = array_keys ( $this->objDbTables ); |
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return $this->objDbTables[ $current[ $this->position ] ]; |
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} |
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public function key () |
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{ |
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$current = array_keys ( $this->objDbTables ); |
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return $current[ $this->position ]; |
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} |
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public function next () |
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{ |
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++ $this->position; |
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} |
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public function valid () |
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{ |
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$current = array_keys ( $this->objDbTables ); |
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return isset( $current[ $this->position ] ); |
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} |
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} |