views_handler_field_serialized.inc

<?php


/**
 * @file
 * Definition of views_handler_field_serialized.
 */

/**
 * Field handler to show data of serialized fields.
 *
 * @ingroup views_field_handlers
 */
class views_handler_field_serialized extends views_handler_field {
    
    /**
     * {@inheritdoc}
     */
    public function option_definition() {
        $options = parent::option_definition();
        $options['format'] = array(
            'default' => 'unserialized',
        );
        $options['key'] = array(
            'default' => '',
        );
        return $options;
    }
    
    /**
     * {@inheritdoc}
     */
    public function options_form(&$form, &$form_state) {
        parent::options_form($form, $form_state);
        $form['format'] = array(
            '#type' => 'select',
            '#title' => t('Display format'),
            '#description' => t('How should the serialized data be displayed. You can choose a custom array/object key or a print_r on the full output.'),
            '#options' => array(
                'unserialized' => t('Full data (unserialized)'),
                'serialized' => t('Full data (serialized)'),
                'key' => t('A certain key'),
            ),
            '#default_value' => $this->options['format'],
        );
        $form['key'] = array(
            '#type' => 'textfield',
            '#title' => t('Which key should be displayed'),
            '#default_value' => $this->options['key'],
            '#dependency' => array(
                'edit-options-format' => array(
                    'key',
                ),
            ),
        );
    }
    
    /**
     * {@inheritdoc}
     */
    public function options_validate(&$form, &$form_state) {
        // Require a key if the format is key.
        if ($form_state['values']['options']['format'] == 'key' && $form_state['values']['options']['key'] == '') {
            form_error($form['key'], t('You have to enter a key if you want to display a key of the data.'));
        }
    }
    
    /**
     * {@inheritdoc}
     */
    public function render($values) {
        $value = $values->{$this->field_alias};
        if ($this->options['format'] == 'unserialized') {
            return check_plain(print_r(unserialize($value), TRUE));
        }
        elseif ($this->options['format'] == 'key' && !empty($this->options['key'])) {
            $value = (array) unserialize($value);
            return check_plain($value[$this->options['key']]);
        }
        return check_plain($value);
    }

}