Web Development Tips

When you going to add or edit path / menu in your site, it is necessary to check the menu are already taken by the site, other wise it will conflict.
When you create internal menu the drupal system automatically check with you site. but when you create external or via coding the below code will help to validate the path already taken or not.

All the internal or external menus are stored in the table “menu_router”.

/*
* Find the path is available
* Parameter menu path
* return TRUE if menu exists else return FALSE
*/

function is_path_exists($path) {
return (db_fetch_array(db_query("SELECT * FROM {menu_router} where path = '%s' ", $path))) ? TRUE : FALSE;
}


Drupal template system is very interesting because you can call any of page template as to your decided page. The following way you can call page template in drupal.
1) As per node or content type
2) As per menu
3) As per your argument in menu

The above three categories are covers your all drupal pages. So the following code will used to get template suggestion as per node or menu or argument.


/**
* Override or insert PHPTemplate variables into the templates.
*/
function phptemplate_preprocess_page(&$vars) {
// first, proceed with a modifed version of the standard
// Drupal template suggestion calls
$i = 0;
$suggestions = array();
$suggestion = 'page';
while ($arg = arg($i++)) {
$suggestions[] = $suggestion .'-'. $arg;
if (!is_numeric($arg)) {
$suggestion .= '-'. $arg;
}
}
if (drupal_is_front_page()) {
$suggestions[] = 'page-front';
}
// next, check for templates that use the path alias
if (module_exists('path')) {
$alias = drupal_get_path_alias(str_replace('/edit','',$_GET['q']));
if ($alias != $_GET['q']) {
$template_filename = 'page';
foreach (explode('/', $alias) as $path_part) {
$template_filename = $template_filename . '-' . $path_part;
$suggestions[] = $template_filename;
}
}
$vars['template_files'] = $suggestions;
} // end path alias template check
if ($suggestions) {
$vars['template_files'] = $suggestions;
}

if (isset($vars['node'])) {
// When viewing a node focused as a full "page", it will suggest the node type.
// For example, a node type of "some_foo" will search for "page-some-foo.tpl.php".
$vars['template_files'][] = 'page-'. str_replace('_', '-', $vars['node']->type);
}
}


The phptemplate_page_preprocess used to override drupal variables. The template file have been override the above code.

The same way you can user node template also.

The following code used to get sub-menu item of their parent menu.
Syntax:
$menu = menu_get_item(”);

Example:

$menu = menu_get_item('admin/store/export');
$content = system_admin_menu_block($menu);
$output = theme('admin_block_content', $content);

The above code get all the sub-menus under export parent menu.

Problem definition:

Drupal is the best CMS with building media related sites. Galleria is the best module for image gallery in drupal, the galleria module did not support caption when you use image filefield because the gallery module get caption for field description. When you use filefield it is support title and alt input field.

So here is the solution for getting caption for image in title tag.

1) In the content type manage fields enable alt and title tags.
2) Add the following coding in your galleria.module file function theme_galleria_formatter_imagefield_galleria end the “alt” text.
‘title’ => $element[$key]['#item']['data']['title']
3) Replace the coding in the function “template_preprocess_galleria”
$caption = ($image->title != $image->filename) ? $image->description : ”;
to
$caption = ($image->title != $image->filename) ? $image->title : ”;

Now view your galleria image gallery, caption will dispaly.

Cheers!

Menu breadcrumb has problem in views page. Having spend some times customized in template pages.

Add the below code in your template.php them file.

function phptemplate_preprocess_page(&$variables) {
$breadcrumb = drupal_set_breadcrumb();
if($breadcrumb[1]==”"){
$breadcrumb[1] = $variables["title"];
$variables['breadcrumb'] = theme(‘breadcrumb’, $breadcrumb);
}
}