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<?php
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namespace PointedEars\PHPX;
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/**
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* Interface to be implemented if the model should be localizable
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*/
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interface ILocalizable
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{
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  /**
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   * Localizes this model.  The actual implementation is left to
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   * the model class implementing this interface.
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   */
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  function localize ();
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}
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/**
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 * Abstract model class
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 *
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 * Provides a constructor to initialize properties using setters and getters.
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 *
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 * @author Thomas Lahn
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 */
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abstract class AbstractModel extends Base
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{
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  /**
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   * Creates a new model object
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   *
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   * @param array $data
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   *   Initialization data (optional)
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   * @param array $mapping
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   *   Mapping for initialization data (optional)
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   * @param bool  $exclusiveMapping
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   *   Exclusive mapping (optional; default: inclusive)
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   * @see AbstractModel::map()
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   */
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  protected function __construct (
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    array $data = null, array $mapping = null, $exclusiveMapping = false)
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  {
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    if (!is_null($data))
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    {
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      $this->map($data, $mapping, $exclusiveMapping);
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    }
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  }
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  /**
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   * Returns <code>true</code> if a variable name is a property variable name
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   * (starts with <tt>$_</tt>), <code>false</code> otherwise.
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   *
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   * @param string $varName
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   * @return boolean
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   * @see getPropertyVars()
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   */
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  private static function _isPropertyVar ($varName)
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  {
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    return preg_match('/^_\\w/', $varName) > 0;
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  }
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  /**
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   * Returns <code>true</code> if a variable name is a property variable name
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   * (starts with <tt>$_</tt>), <code>false</code> otherwise.
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   *
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   * @param string $varName
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   * @return string
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   * @see getPropertyVars()
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   */
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  private static function _toPropertyVar ($varName)
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  {
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    return preg_replace('/^_(\\w)/', '\\1', $varName);
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  }
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  /**
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   * Returns the public names of the property variables of a {@link Model}
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   * as an array of strings
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   *
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   * @return array
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   */
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  public function getPropertyVars ()
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  {
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    return array_map(
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      array('self', '_toPropertyVar'),
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      array_filter(
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        array_keys(get_object_vars($this)),
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        array('self', '_isPropertyVar')
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      )
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    );
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  }
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  /**
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   * Maps the values of an associative array to a model object
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   *
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   * @param array $data
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   *   Data to be mapped to properties of the object
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   * @param array $mapping = null
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   *   <p>If <var>$mapping</var> is not provided, or <code>null</code> (default),
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   *   the values of <var>$data</var> are mapped to properties of
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   *   the model object as specified by the keys of <var>$data</var>.</p>
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   *   <p>If <var>$mapping</var> is provided and an array, the keys of
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   *   <var>$data</var> are mapped to properties as specified by
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   *   the corresponding values of <var>$mapping</var>.  If a value of
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   *   <var>$mapping</var> is <code>null</code>, the corresponding value
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   *   in <var>$data</var> is not mapped; if a key is missing in
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   *   <var>$mapping</var>, the value is mapped as if <var>$mapping</var>
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   *   was <code>null</code>.</p>
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   * @param bool $exclusive = false
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   *   <p>If <code>true</code>, <em>only</em> the keys of <var>$data</var>
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   *   that are present in <var>$mapping</var> are mapped.</p>
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   * @return AbstractModel
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   *   The modified object
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   */
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  public function map (array $data, array $mapping = null, $exclusive = false)
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  {
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    if (is_null($mapping))
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    {
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      foreach ($data as $key => $value)
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      {
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        $this->$key = $value;
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      }
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    }
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    else
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    {
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      foreach ($data as $key => $value)
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      {
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        if (array_key_exists($key, $mapping))
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        {
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          if ($exclusive || !is_null($mapping[$key]))
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          {
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            $this->{$mapping[$key]} = $value;
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          }
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        }
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        else
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        {
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          $this->$key = $value;
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        }
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      }
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    }
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    return $this;
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  }
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}