source: extensions/Extended_author/image.php @ 25035

<?php

// Add an event handler for a prefilter
add_event_handler('loc_begin_picture', 'EA_set_prefilter_add_to_pic_info', 55 );

// Change the variables used by the function that changes the template
add_event_handler('loc_begin_picture', 'EA_add_image_vars_to_template');

// Add the prefilter to the template
function EA_set_prefilter_add_to_pic_info()
{
        global $template;
        $template->set_prefilter('picture', 'EA_add_to_pic_info');
}

// Insert the template for the author display
function EA_add_to_pic_info($content, &$smarty)
{
        // Add the information after the author - so before the createdate
        $search = '/<tr id="Author">.*?<\/tr>/is';
        
        $replacement = '
        <tr id="extended_author">
                <td class="label">{\'Author\'|@translate}</td>
                <td class="value">
                {if $EA_INFO_NAME}
                        {if $EA_INFO_URL}
                                <a target="_blanc" href="{$EA_INFO_URL}" title="{$EA_INFO_NAME}">
                        {/if}
                        {$EA_INFO_NAME}
                        {if $EA_INFO_URL}
                                </a>
                        {/if}
                {else}
                        {\'N/A\'|@translate}
                {/if}
                </td>
        </tr>';

        return preg_replace($search, $replacement, $content);
}

// Assign values to the variables in the template
function EA_add_image_vars_to_template()
{
        global $page, $template;

        // Show block only on the photo page
        if ( !empty($page['image_id']) )
        {
                // Get the author name and url that belongs to the current media_item
                $query = sprintf('
                        select a.name, a.url
                        FROM %s i, %s a
                        WHERE i.author = a.name
                        AND i.id = %d
                ;',
                IMAGES, AUTHORS, $page['image_id']);
                $result = pwg_query($query);
                $row = pwg_db_fetch_row($result);
                $name = '';
                $url = '';
                if(count($row) > 0) {
                        $name = $row[0];
                        $url = $row[1];
                }
                        
                // Sending data to the template
                $template->assign(
                        array(
                                'EA_INFO_NAME' => $name,
                                'EA_INFO_URL' => $url
                        )
                );
        }
}

?>