04.12 php saved
mariano_iglesias
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Modified version of the Slug Behavior that uses more than one field as label to be used when generating a slug.
  1. <?php
  2.  /**
  3. * Slug Behavior class file.
  4. *
  5. * Model Behavior to support slugs.
  6. *
  7. * @filesource
  8. * @package    app
  9. * @subpackage    models.behaviors
  10. */
  11.  
  12. /**
  13. * Add slug behavior to a model.
  14. * 
  15. * @author    Mariano Iglesias
  16. * @package    app
  17. * @subpackage    models.behaviors
  18. */
  19. class SlugBehavior extends ModelBehavior {
  20.     /**
  21.      * Initiate behaviour for the model using specified settings.
  22.      *
  23.      * @param object $model    Model using the behaviour
  24.      * @param array $settings    Settings to override for model.
  25.      *
  26.      * @access public
  27.      */
  28.     function setup(&$model, $settings = array()) {
  29.         $default = array( 'label' => array('title'), 'slug' => 'slug', 'separator' => '-', 'length' => 100, 'overwrite' => false );
  30.          
  31.         if (!isset($this->settings[$model->name])) {
  32.             $this->settings[$model->name] = $default;
  33.         }
  34.        
  35.         if (isset($settings) && is_array($settings) && isset($settings['label']) && !is_array($settings['label'])) {
  36.             $settings['label'] = array( $settings['label'] );
  37.         }
  38.          
  39.         $this->settings[$model->name] = array_merge($this->settings[$model->name], ife(is_array($settings), $settings, array()));
  40.     }
  41.      
  42.     /**
  43.      * Run before a model is saved, used to set up slug for model.
  44.      *
  45.      * @param object $model    Model about to be saved.
  46.      *
  47.      * @access public
  48.      * @since 1.0
  49.      */
  50.     function beforeSave(&$model) {
  51.             foreach($this->settings[$model->name]['label'] as $field) {
  52.                 if (!$model->hasField($field)) {
  53.                     return;
  54.                 }
  55.             }
  56.            
  57.         if ($model->hasField($this->settings[$model->name]['slug'])) {
  58.             if (($this->settings[$model->name]['overwrite'] || empty($model->{$model->primaryKey}))) {
  59.                 $label = '';
  60.                
  61.                 foreach($this->settings[$model->name]['label'] as $field) {
  62.                     $label .= ife(!empty($label), ' ', '');
  63.                     $label .= $model->data[$model->name][$field];
  64.                 }
  65.                
  66.                 if (empty($label)) {
  67.                     return;
  68.                 }
  69.                
  70.                 $slug = $this->_slug($label, $this->settings[$model->name]);
  71.                  
  72.                 $conditions = array($model->name . '.' . $this->settings[$model->name]['slug'] => 'LIKE ' . $slug . '%');
  73.                  
  74.                 if (!empty($model->{$model->primaryKey})) {
  75.                     $conditions[$model->name . '.' . $model->primaryKey] = '!= ' . $model->{$model->primaryKey};
  76.                 }
  77.                  
  78.                 $result = $model->findAll($conditions, $model->name . '.*', null, null, 1, 0);
  79.                  
  80.                 if ($result !== false && count($result) > 0) {
  81.                     $slugs = Set::extract($result, '{n}.' . $this->settings[$model->name]['slug']);
  82.                 }
  83.              
  84.                 if (isset($slugs) && count($slugs) > 0) {
  85.                     $begginingSlug = $slug;
  86.                     $index = 1;
  87.              
  88.                     while($index > 0) {
  89.                         if (!in_array($begginingSlug . $this->settings[$model->name]['separator'] . $index, $slugs)) {
  90.                             $slug = $begginingSlug . $this->settings[$model->name]['separator'] . $index;
  91.                             $index = -1;
  92.                         }
  93.                         $index++;
  94.                     }
  95.                 }
  96.                  
  97.                 $model->data[$model->name][$this->settings[$model->name]['slug']] = $slug;
  98.             }
  99.         }
  100.     }
  101.      
  102.     /**
  103.      * Generate a slug for the given strung using specified settings.
  104.      *
  105.      * @param string $string    String.
  106.      * @param array $settings    Settings to use (looks for 'separator' and 'length')
  107.      *
  108.      * @return string    Slug for given string.
  109.      *
  110.      * @access private
  111.      */
  112.     function _slug($string, $settings) {
  113.         $string = strtolower($string);
  114.          
  115.         $string = preg_replace('/[^a-z0-9' . $settings['separator'] . ']/i', $settings['separator'], $string);
  116.         $string = preg_replace('/' . $settings['separator'] . '[' . $settings['separator'] . ']*/', $settings['separator'], $string);
  117.          
  118.         if (strlen($string) > $settings['length']) {
  119.             $string = substr($string, 0, $settings['length']);
  120.         }
  121.          
  122.         $string = preg_replace('/' . $settings['separator'] . '$/', '', $string);
  123.         $string = preg_replace('/^' . $settings['separator'] . '/', '', $string);
  124.          
  125.         return $string;
  126.     }
  127. }
  128. ?>
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