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My Sluggable Behaviour for CakePHP based on Mariano Iglesias' behaviour
<?php
App::import('Inflector');
class SluggableBehavior extends ModelBehavior {
private $_settings = array();
function setup(&$model, $settings = array()) {
$default = array(
'fields' => 'title',
'scope' => false,
'conditions' => false,
'slugfield' => 'slug',
'separator' => '-',
'overwrite' => false,
'length' => 256,
'lower' => true
);
$this->_settings[$model->alias] = (!empty($settings)) ? $settings + $default : $default;
}
function beforeSave(&$model) {
$fields = (array) $this->_settings[$model->alias]['fields'];
$scope = (array) $this->_settings[$model->alias]['scope'];
$conditions = !empty($this->_settings[$model->alias]['conditions']) ? (array) $this->_settings[$model->alias]['conditions'] : array();
$slugfield = $this->_settings[$model->alias]['slugfield'];
$hasFields = true;
foreach ($fields as $field) {
if (!$model->hasField($field)) {
$hasFields = false;
}
if (!isset($model->data[$model->alias][$field])) {
$hasFields = false;
}
}
if ($hasFields && $model->hasField($slugfield) && ($this->_settings[$model->alias]['overwrite'] || empty($model->id))) {
$toSlug = array();
foreach ($fields as $field) {
$toSlug[] = $model->data[$model->alias][$field];
}
$toSlug = join(' ', $toSlug);
$slug = Inflector::slug($toSlug, $this->_settings[$model->alias]['separator']);
if ($this->_settings[$model->alias]['lower']) {
$slug = strtolower($slug);
}
if (strlen($slug) > $this->_settings[$model->alias]['length']) {
$slug = substr($slug, 0, $this->_settings[$model->alias]['length']);
}
$conditions[$model->alias . '.' . $slugfield . ' LIKE'] = $slug . '%';
if (!empty($model->id)) {
$conditions[$model->alias . '.' . $model->primaryKey . ' !='] = $model->id;
}
if (!empty($scope)) {
foreach ($scope as $s) {
if (isset($model->data[$model->alias][$s]) && !empty($model->data[$model->alias][$s])) {
$conditions[$model->alias . '.' . $s] = $model->data[$model->alias][$s];
}
}
}
$sameUrls = $model->find('all', array(
'recursive' => -1,
'conditions' => $conditions
));
$sameUrls = (!empty($sameUrls)) ?
Set::extract($sameUrls, '{n}.' . $model->alias . '.' . $slugfield) :
null;
if ($sameUrls) {
if (in_array($slug, $sameUrls)) {
$begginingSlug = $slug;
$index = 1;
while ($index > 0) {
if (!in_array($begginingSlug . $this->_settings[$model->alias]['separator'] . $index, $sameUrls)) {
$slug = $begginingSlug . $this->_settings[$model->alias]['separator'] . $index;
$index = -1;
}
$index++;
}
}
}
if (!empty($model->whitelist) && !in_array($slugfield, $model->whitelist)) {
$model->whitelist[] = $slugfield;
}
$model->data[$model->alias][$slugfield] = $slug;
}
return parent::beforeSave($model);
}
}
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