[devhelp] search: Improve performance when filtering by book

[Aleksander Morgado <aleksm src gnome org>]

commit 298a9e26105b24b8ac018b9efd230614c25670e9
Author: Aleksander Morgado <aleksander lanedo com>
Date:   Wed Dec 15 00:17:06 2010 +0100

    search: Improve performance when filtering by book

 src/dh-keyword-model.c |   11 +++++------
 1 files changed, 5 insertions(+), 6 deletions(-)
---
diff --git a/src/dh-keyword-model.c b/src/dh-keyword-model.c
index 3ff7b7a..37bd24f 100644
--- a/src/dh-keyword-model.c
+++ b/src/dh-keyword-model.c
@@ -370,6 +370,11 @@ keyword_model_search (DhKeywordModel  *model,
 
                 book = DH_BOOK (b->data);
 
+                if (book_id &&
+                    g_strcmp0 (book_id, dh_book_get_name (book)) != 0) {
+                        continue;
+                }
+
                 for (l = dh_book_get_keywords (book);
                      l && hits < MAX_HITS;
                      l = g_list_next (l)) {
@@ -380,12 +385,6 @@ keyword_model_search (DhKeywordModel  *model,
                         link = l->data;
                         found = FALSE;
 
-                        if (book_id &&
-                            dh_link_get_book_id (link) &&
-                            strcmp (dh_link_get_book_id (link), book_id) != 0) {
-                                continue;
-                        }
-
                         if (page_id &&
                             (dh_link_get_link_type (link) != DH_LINK_TYPE_PAGE &&
                              !g_str_has_prefix (dh_link_get_file_name (link), page_filename_prefix))) {