function context_respect_reaction_block::get_blocks in Context Respect 6

Override of get_blocks(). Helper function to generate a list of blocks from a specified region. If provided a context object, will generate a full list of blocks for that region distinguishing between system blocks and context-provided blocks.

Parameters

$region: The string identifier for a theme region. e.g. "left"

$context: A context object.

Return value

A keyed (by "module_delta" convention) array of blocks.

1 call to context_respect_reaction_block::get_blocks()

context_respect_reaction_block::block_list in plugins/context_respect_reaction_block.inc

Override of block_list(). An alternative version of block_list() that provides any context enabled blocks.

File

plugins/context_respect_reaction_block.inc, line 137

Context Respect reaction plugin file.

Class

context_respect_reaction_block

Expose permissions as context reactions.

Code

function get_blocks($region = NULL, $context = NULL, $reset = FALSE) {
  static $block_info;
  global $user;
  $rids = array_keys($user->roles);
  if (!isset($block_info) || $reset) {
    $block_info = array();
    if (!$reset) {
      $block_info = context_cache_get('block_info');
    }
    if (empty($block_info)) {
      $block_info = array();
      foreach (module_implements('block') as $module) {
        $module_blocks = module_invoke($module, 'block', 'list');
        if (!empty($module_blocks)) {
          foreach ($module_blocks as $delta => $block) {
            $block = (object) $block;
            $block->module = $module;
            $block->delta = $delta;
            $block->bid = "{$block->module}-{$block->delta}";
            $page_match = TRUE;
            $role_match = TRUE;

            // check role access
            if (!drupal_match_path($_GET['q'], 'admin/build/context/*')) {
              $block_rids = db_query("SELECT rid FROM {blocks_roles} WHERE module = '%s' AND delta = '%s'", $block->module, $block->delta);
              while ($block_rid = db_result($block_rids)) {
                if (in_array($block_rid, $rids)) {

                  // found a matching role
                  $role_match = TRUE;
                  break;
                }
                else {

                  // didn't match the role
                  $role_match = FALSE;
                }
              }
            }

            // check page access
            $block_data = db_fetch_object(db_query("SELECT pages, visibility FROM {blocks} WHERE module = '%s' AND delta = '%s'", $block->module, $block->delta));
            if ($block_data->pages && !drupal_match_path($_GET['q'], 'admin/build/context/*')) {
              if ($block_data->visibility < 2) {
                $path = drupal_get_path_alias($_GET['q']);

                // Compare with the internal and path alias (if any).
                $page_match = drupal_match_path($path, $block_data->pages);
                if ($path != $_GET['q']) {
                  $page_match = $page_match || drupal_match_path($_GET['q'], $block_data->pages);
                }

                // 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_data->visibility xor $page_match);
              }
              else {
                $page_match = drupal_eval($block_data->pages);
              }
            }

            // add to region
            if ($page_match && $role_match) {
              $block_info[$block->bid] = $block;
            }
          }
        }
      }
      context_cache_set('block_info', $block_info);
    }

    // Allow other modules that may declare blocks dynamically to alter
    // this list.
    drupal_alter('context_block_info', $block_info);

    // Gather only region info from the database.
    $theme_key = variable_get('theme_default', 'garland');
    $result = db_query("SELECT module,weight,delta,region,status FROM {blocks} WHERE theme = '%s' ORDER BY weight ASC", $theme_key);
    while ($row = db_fetch_object($result)) {
      if ($row->status && isset($block_info["{$row->module}-{$row->delta}"])) {
        $block_info["{$row->module}-{$row->delta}"]->weight = $row->weight;
        $block_info["{$row->module}-{$row->delta}"]->region = $row->region;
      }
    }
  }
  $blocks = array();

  // No region specified, provide all blocks.
  if (!isset($region)) {
    $blocks = $block_info;
  }
  else {
    foreach ($block_info as $bid => $block) {
      if (isset($block->region) && $block->region == $region) {
        $blocks[$bid] = $block;
      }
    }
  }

  // Add context blocks if provided.
  if (is_object($context) && ($options = $this
    ->fetch_from_context($context))) {
    if (!empty($options['blocks'])) {
      foreach ($options['blocks'] as $block) {
        if (isset($block_info["{$block['module']}-{$block['delta']}"]) && (!isset($region) || !empty($region) && $block['region'] == $region)) {
          $context_block = $block_info["{$block['module']}-{$block['delta']}"];
          $context_block->weight = $block['weight'];
          $context_block->region = $block['region'];
          $context_block->context = $context->name;
          $blocks[$context_block->bid] = $context_block;
        }
      }
    }
    uasort($blocks, array(
      'context_respect_reaction_block',
      'block_sort',
    ));
  }
  return $blocks;
}