block_list
modules/block/block.module, строка 638
- Версии
- 5 – 6
block_list($region)
Return all blocks in the specified region for the current user.
@todo Add a proper primary key (bid) to the blocks table so we don't have to mess around with this <i>module</i>_<i>delta</i> construct. Currently, the blocks table has no primary key defined!
Параметры
$region
The name of a region.
Возвращаемое значение
An array of block objects, indexed with <i>module</i>_<i>delta</i>. If you are displaying your blocks in one or two sidebars, you may check whether this array is empty to see how many columns are going to be displayed.
Код
<?php
function block_list($region) {
global $user, $theme_key;
static $blocks = array();
if (!count($blocks)) {
$rids = array_keys($user->roles);
$placeholders = implode(',', array_fill(0, count($rids), '%d'));
$result = db_query("SELECT DISTINCT b.* FROM {blocks} b LEFT JOIN {blocks_roles} r ON b.module = r.module AND b.delta = r.delta WHERE b.theme = '%s' AND b.status = 1 AND (r.rid IN ($placeholders) OR r.rid IS NULL) ORDER BY b.region, b.weight, b.module", array_merge(array($theme_key), $rids));
while ($block = db_fetch_object($result)) {
if (!isset($blocks[$block->region])) {
$blocks[$block->region] = array();
}
// Use the user's block visibility setting, if necessary
if ($block->custom != 0) {
if ($user->uid && isset($user->block[$block->module][$block->delta])) {
$enabled = $user->block[$block->module][$block->delta];
}
else {
$enabled = ($block->custom == 1);
}
}
else {
$enabled = TRUE;
}
// Match path if necessary
if ($block->pages) {
if ($block->visibility < 2) {
$path = drupal_get_path_alias($_GET['q']);
$regexp = '/^('. preg_replace(array('/(\r\n?|\n)/', '/\\\\\*/', '/(^|\|)\\\\<front\\\\>($|\|)/'), array('|', '.*', '\1'. preg_quote(variable_get('site_frontpage', 'node'), '/') .'\2'), preg_quote($block->pages, '/')) .')$/';
// Compare with the internal and path alias (if any).
$page_match = preg_match($regexp, $path);
if ($path != $_GET['q']) {
$page_match = $page_match || preg_match($regexp, $_GET['q']);
}
// When $block->visibility has a value of 0, the block is displayed on
// all pages except those listed in $block->pages. When set to 1, it
// is displayed only on those pages listed in $block->pages.
$page_match = !($block->visibility xor $page_match);
}
else {
$page_match = drupal_eval($block->pages);
}
}
else {
$page_match = TRUE;
}
$block->enabled = $enabled;
$block->page_match = $page_match;
$blocks[$block->region]["{$block->module}_{$block->delta}"] = $block;
}
}
// Create an empty array if there were no entries
if (!isset($blocks[$region])) {
$blocks[$region] = array();
}
foreach ($blocks[$region] as $key => $block) {
// Render the block content if it has not been created already.
if (!isset($block->content)) {
// Erase the block from the static array - we'll put it back if it has content.
unset($blocks[$region][$key]);
if ($block->enabled && $block->page_match) {
// Check the current throttle status and see if block should be displayed
// based on server load.
if (!($block->throttle && (module_invoke('throttle', 'status') > 0))) {
$array = module_invoke($block->module, 'block', 'view', $block->delta);
if (isset($array) && is_array($array)) {
foreach ($array as $k => $v) {
$block->$k = $v;
}
}
}
if (isset($block->content) && $block->content) {
// Override default block title if a custom display title is present.
if ($block->title) {
// Check plain here to allow module generated titles to keep any markup.
$block->subject = $block->title == '<none>' ? '' : check_plain($block->title);
}
$blocks[$block->region]["{$block->module}_{$block->delta}"] = $block;
}
}
}
}
return $blocks[$region];
}
?>
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