/**
  * determines if the field should be wrapped in a link and sets the link property of the field object
  * 
  * sets the link property of the field, right now only for the single record link
  * 
  * @param object $field field data object
  */
 protected function _set_field_link($field)
 {
     $link = '';
     //check for single record link
     if (!in_array($this->module, array('single', 'signup')) && Participants_Db::is_single_record_link($field) && isset($this->participant_values['id'])) {
         $url = get_permalink(Participants_Db::plugin_setting('single_record_page'));
         $link = Participants_Db::add_uri_conjunction($url) . 'pdb=' . $this->participant_values['id'];
     }
     $field->link = $link;
 }
 /**
  * are we setting the single record link?
  * 
  * @return bool true if the current field is the designated single record link field
  */
 public function is_single_record_link($column)
 {
     return Participants_Db::is_single_record_link($column) && false !== $this->single_record_url && !in_array($this->get_field_type($column), array('rich-text', 'link'));
 }
 /**
  * is this the single record link?
  * returns boolean
  */
 private function _is_single_record_link()
 {
     return Participants_Db::is_single_record_link($this) && !in_array($this->form_element, array('rich-text', 'link')) && $this->record_id;
 }
    /**
     * prints the main body of the list, including headers
     *
     * @param string $mode dtermines the print mode: 'noheader' skips headers, (other choices to be determined)
     */
    private static function _main_table($mode = '')
    {
        $hscroll = Participants_Db::plugin_setting_is_true('admin_horiz_scroll');
        ?>
            <?php 
        if ($hscroll) {
            ?>
            <div class="pdb-horiz-scroll-scroller">
              <div class="pdb-horiz-scroll-width" style="width: <?php 
            echo count(self::$display_columns) * 10;
            ?>
em">
    <?php 
        }
        ?>
        <table class="wp-list-table widefat fixed pages pdb-list stuffbox" cellspacing="0" >
          <?php 
        $PID_pattern = '<td><a href="%2$s">%1$s</a></td>';
        //template for outputting a column
        $col_pattern = '<td>%s</td>';
        if (count(self::$participants) > 0) {
            if ($mode != 'noheader') {
                ?>
              <thead>
                <tr>
        <?php 
                self::_print_header_row();
                ?>
                </tr>
              </thead>
              <?php 
            }
            // table header row
            // print the table footer row if there is a long list
            if ($mode != 'noheader' && count(self::$participants) > 10) {
                ?>
              <tfoot>
                <tr>
        <?php 
                self::_print_header_row();
                ?>
                </tr>
              </tfoot>
              <?php 
            }
            // table footer row
            ?>
            <tbody>
            <?php 
            // output the main list
            foreach (self::$participants as $value) {
                ?>
                <tr>
        <?php 
                // print delete check
                ?>
                  <td>
                          <?php 
                if (current_user_can(Participants_Db::plugin_capability('plugin_admin_capability', 'delete participants'))) {
                    ?>
                            <input type="checkbox" class="delete-check" name="pid[]" value="<?php 
                    echo $value['id'];
                    ?>
" />
                    <?php 
                }
                ?>
                            <a href="admin.php?page=<?php 
                echo 'participants-database';
                ?>
-edit_participant&amp;action=edit&amp;id=<?php 
                echo $value['id'];
                ?>
" title="<?php 
                _e('Edit', 'participants-database');
                ?>
"><span class="glyphicon glyphicon-edit"></span></a>
                  </td>
              <?php 
                foreach (self::$display_columns as $column) {
                    // this is where we place form-element-specific text transformations for display
                    switch ($column->form_element) {
                        case 'image-upload':
                            $image_params = array('filename' => basename($value[$column->name]), 'link' => '', 'mode' => Participants_Db::plugin_setting_is_true('admin_thumbnails') ? 'image' : 'filename');
                            if (Participants_Db::is_single_record_link($column)) {
                                $page_link = get_permalink(Participants_Db::plugin_setting('single_record_page'));
                                $image_params['link'] = Participants_Db::add_uri_conjunction($page_link) . 'pdb=' . $value['id'];
                            }
                            // this is to display the image as a linked thumbnail
                            $image = new PDb_Image($image_params);
                            $display_value = $image->get_image_html();
                            break;
                        case 'date':
                        case 'timestamp':
                            if (!empty($value[$column->name])) {
                                $format = Participants_Db::$date_format;
                                if (Participants_Db::plugin_setting_is_true('show_time') and $column->form_element == 'timestamp') {
                                    // replace spaces with &nbsp; so the time value stays together on a broken line
                                    $format .= ' ' . str_replace(' ', '&\\nb\\sp;', get_option('time_format'));
                                }
                                $time = Participants_Db::is_valid_timestamp($value[$column->name]) ? (int) $value[$column->name] : Participants_Db::parse_date($value[$column->name], $column->name, $column->form_element == 'date');
                                $display_value = $value[$column->name] == '0000-00-00 00:00:00' ? '' : date_i18n($format, $time);
                                //$display_value = date_i18n($format, $time);
                            } else {
                                $display_value = '';
                            }
                            break;
                        case 'multi-select-other':
                        case 'multi-checkbox':
                            // multi selects are displayed as comma separated lists
                            $column->value = $value[$column->name];
                            $display_value = PDb_FormElement::get_field_value_display($column, false);
                            //$display_value = is_serialized($value[$column->name]) ? implode(', ', unserialize($value[$column->name])) : $value[$column->name];
                            break;
                        case 'link':
                            $link_value = maybe_unserialize($value[$column->name]);
                            if (count($link_value) === 1) {
                                $link_value = array_fill(0, 2, current((array) $link_value));
                            }
                            $display_value = Participants_Db::make_link($link_value[0], $link_value[1]);
                            break;
                        case 'rich-text':
                            if (!empty($value[$column->name])) {
                                $display_value = '<span class="textarea">' . $value[$column->name] . '</span>';
                            } else {
                                $display_value = '';
                            }
                            break;
                        case 'text-line':
                            if (Participants_Db::is_single_record_link($column)) {
                                $url = get_permalink(Participants_Db::plugin_setting('single_record_page'));
                                $template = '<a href="%1$s" >%2$s</a>';
                                $delimiter = false !== strpos($url, '?') ? '&' : '?';
                                $url = $url . $delimiter . 'pdb=' . $value['id'];
                                $display_value = sprintf($template, $url, $value[$column->name]);
                            } elseif (Participants_Db::plugin_setting_is_true('make_links')) {
                                $field = new stdClass();
                                $field->value = $value[$column->name];
                                $display_value = PDb_FormElement::make_link($field);
                            } else {
                                $display_value = $value[$column->name] === '' ? $column->default : esc_html($value[$column->name]);
                            }
                            break;
                        case 'hidden':
                            $display_value = $value[$column->name] === '' ? '' : esc_html($value[$column->name]);
                            break;
                        default:
                            $column->value = $value[$column->name];
                            $display_value = PDb_FormElement::get_field_value_display($column, false);
                    }
                    if ($column->name === 'private_id' && Participants_Db::plugin_setting_is_set('registration_page')) {
                        printf($PID_pattern, $display_value, Participants_Db::get_record_link($display_value));
                    } else {
                        printf($col_pattern, $display_value);
                    }
                }
                ?>
                </tr>
                <?php 
            }
            ?>
            </tbody>

              <?php 
        } else {
            // if there are no records to show; do this
            ?>
            <tbody>
              <tr>
                <td><?php 
            _e('No records found', 'participants-database');
            ?>
</td>
              </tr>
            </tbody>
              <?php 
        }
        // participants array
        ?>
        </table>
                  <?php 
        if ($hscroll) {
            ?>
              </div>
            </div>
    <?php 
        }
        ?>
      </form>
              <?php 
    }