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   1  <?php
   2  // $Id: link_views_handler_argument_target.inc,v 1.1.4.3 2010/06/14 15:59:35 jcfiala Exp $
   3  
   4  /**
   5   * @file
   6   * Argument handler to filter results by target.
   7   */
   8  
   9  /**
  10   * Argument handler to filter results by target.
  11   */
  12  class link_views_handler_argument_target extends views_handler_argument {
  13  
  14    /**
  15     * Provide a default options form for the argument.
  16     */
  17    function options_form(&$form, &$form_state) {
  18      $defaults = $this->default_actions();
  19  
  20      $form['title'] = array(
  21        '#prefix' => '<div class="clear-block">',
  22        '#suffix' => '</div>',
  23        '#type' => 'textfield',
  24        '#title' => t('Title'),
  25        '#default_value' => $this->options['title'],
  26        '#description' => t('The title to use when this argument is present; it will override the title of the view and titles from previous arguments. You can use percent substitution here to replace with argument titles. Use "%1" for the first argument, "%2" for the second, etc.'),
  27      );
  28  
  29      $form['clear_start'] = array(
  30        '#value' => '<div class="clear-block">',
  31      );
  32  
  33      $form['defaults_start'] = array(
  34        '#value' => '<div class="views-left-50">',
  35      );
  36  
  37      $form['default_action'] = array(
  38        '#type' => 'radios',
  39        '#title' => t('Action to take if argument is not present'),
  40        '#default_value' => $this->options['default_action'],
  41      );
  42  
  43      $form['defaults_stop'] = array(
  44        '#value' => '</div>',
  45      );
  46  
  47      $form['wildcard'] = array(
  48        '#prefix' => '<div class="views-right-50">',
  49        // prefix and no suffix means these two items will be grouped together.
  50        '#type' => 'textfield',
  51        '#title' => t('Wildcard'),
  52        '#size' => 20,
  53        '#default_value' => $this->options['wildcard'],
  54        '#description' => t('If this value is received as an argument, the argument will be ignored; i.e, "all values"'),
  55      );
  56  
  57      $form['wildcard_substitution'] = array(
  58        '#suffix' => '</div>',
  59        '#type' => 'textfield',
  60        '#title' => t('Wildcard title'),
  61        '#size' => 20,
  62        '#default_value' => $this->options['wildcard_substitution'],
  63        '#description' => t('The title to use for the wildcard in substitutions elsewhere.'),
  64      );
  65  
  66      $form['clear_stop'] = array(
  67        '#value' => '</div>',
  68      );
  69  
  70      $options = array();
  71      $validate_options = array();
  72      foreach ($defaults as $id => $info) {
  73        $options[$id] = $info['title'];
  74        if (empty($info['default only'])) {
  75          $validate_options[$id] = $info['title'];
  76        }
  77        if (!empty($info['form method'])) {
  78          $this->{$info['form method']}($form, $form_state);
  79        }
  80      }
  81  
  82      $form['default_action']['#options'] = $options;
  83  
  84      $form['validate_type'] = array(
  85        '#type' => 'select',
  86        '#title' => t('Validator'),
  87        '#default_value' => $this->options['validate_type'],
  88      );
  89  
  90      $validate_types = array('none' => t('<Basic validation>'));
  91      $plugins = views_fetch_plugin_data('argument validator');
  92      foreach ($plugins as $id => $info) {
  93        $valid = TRUE;
  94        if (!empty($info['type'])) {
  95          $valid = FALSE;
  96          if (empty($this->definition['validate type'])) {
  97            continue;
  98          }
  99          foreach ((array) $info['type'] as $type) {
 100            if ($type == $this->definition['validate type']) {
 101              $valid = TRUE;
 102              break;
 103            }
 104          }
 105        }
 106  
 107        // If we decide this validator is ok, add it to the list.
 108        if ($valid) {
 109          $plugin = views_get_plugin('argument validator', $id);
 110          if ($plugin) {
 111            $plugin->init($this->view, $this, $id);
 112            if ($plugin->access()) {
 113              $plugin->validate_form($form, $form_state, $id);
 114              $validate_types[$id] = $info['title'];
 115            }
 116          }
 117        }
 118      }
 119  
 120      asort($validate_types);
 121      $form['validate_type']['#options'] = $validate_types;
 122      // Show this gadget if *anything* but 'none' is selected
 123  
 124      $form['validate_fail'] = array(
 125        '#type' => 'select',
 126        '#title' => t('Action to take if argument does not validate'),
 127        '#default_value' => $this->options['validate_fail'],
 128        '#options' => $validate_options,
 129      );
 130    }
 131  
 132    /**
 133     * Set up the query for this argument.
 134     *
 135     * The argument sent may be found at $this->argument.
 136     */
 137    function query() {
 138      $this->ensure_my_table();
 139      // Because attributes are stored serialized, our only option is to also
 140      // serialize the data we're searching for and use LIKE to find similar data.
 141      $this->query->add_where(0, $this->table_alias .'.'. $this->real_field ." LIKE '%%%s%'", serialize(array('target' => $this->argument)));
 142    }
 143  }