added some comments

materio_search_api.pages.inc

@@ -189,47 +189,52 @@ function materio_search_api_results_search(){
     // TODO:  cache the results with cache graceful : http://drupal.org/project/cache_graceful
     try {
 
-      $viewmode = isset($user->data['materiosearchapi_viewmode']) ? $user->data['materiosearchapi_viewmode'] : variable_get('defaultviewmode', 'full');
-      // dsm($viewmode, 'viewmode');
+      # retrieve viewmode and then use it to define the query range
+      $viewmode = isset($user->data['materiosearchapi_viewmode'])
+        ? $user->data['materiosearchapi_viewmode']
+        : variable_get('defaultviewmode', 'full');
 
       $limit = variable_get($viewmode.'_limite', '10');
       $offset = pager_find_page() * $limit; //$page*$limit;//
 
       if(isset($index)){
 
-        // $index_machine_name = variable_get('brevessearchindex_'.$language->language, -1);
-        // dsm($index_machine_name, '$index_machine_name');
+        # define default bundle option (materiaux, breves)
         $default_bundles = array();
         if(isset($index->options['data_alter_callbacks']['search_api_alter_bundle_filter']['settings']['bundles'])){
           $indexed_bundles = $index->options['data_alter_callbacks']['search_api_alter_bundle_filter']['settings']['bundles'];
           foreach ($indexed_bundles as $bundle) { $default_bundles[] = $bundle; }
         }
+        # choose solr query bundle option
+        $bundles_filter = isset($user->data['materiosearchapi_bundlesfilter'])
+          ? $user->data['materiosearchapi_bundlesfilter']
+          : $default_bundles;
 
-        $bundles_filter = isset($user->data['materiosearchapi_bundlesfilter']) ? $user->data['materiosearchapi_bundlesfilter'] : $default_bundles;
-        // dsm($bundles_filter, 'bundles_filter');
-        if($advanced){
-          $query_options = array('conjunction'=>'AND', 'parse mode'=>'direct');
-        }
-        else{
-          $query_options = array('conjunction'=>'OR', 'parse mode'=>'direct');
-        }
+        # choose solr query options
+        $query_options = $advanced
+          ? array('conjunction'=>'AND', 'parse mode'=>'direct')
+          : array('conjunction'=>'OR', 'parse mode'=>'direct');
 
+        #create the solr query
         $query = search_api_query($index_machine_name, $query_options)
           ->keys($typed)
           ->range($offset, $limit);
 
+        # apply bundle options to solr query if usefull
         if(count($bundles_filter)){
           $filter = $query->createFilter('OR');
-          foreach ($bundles_filter as $type) {
+          foreach ($bundles_filter as $type)
             $filter->condition('type', $type, '=');
-          }
-          // dsm($filter, 'filter');
+
           $query->filter($filter);
         }
 
         // $query->setOption('search_api_bypass_access', true);
+
+        # add user access solr query option
         $query->setOption('search_api_access_account', $user);
 
+        # execute solr query and record results
         $results = $query->execute();
       }