support query splitting and quoting and search content and tags

[grauphel.git] / lib / search / provider.php

diff --git a/lib/search/provider.php b/lib/search/provider.php
index 5b42bb70f9c6c6ce1e0b5864c7cf59d04cd999a6..8b867bb91bb5e7f2a41c6f2ea2a30ea46d4a09c0 100644 (file)
--- a/lib/search/provider.php
+++ b/lib/search/provider.php
@@ -40,13 +40,13 @@ class Provider extends \OCP\Search\Provider
         $urlGen = \OC::$server->getURLGenerator();
         $notes  = new NoteStorage($urlGen);
         $notes->setUsername(\OC_User::getUser());
-        $rows = $notes->search($query);
+        $rows = $notes->search($this->parseQuery($query));
 
         $results = array();
         foreach ($rows as $row) {
             $res = new Note();
             $res->id   = $row['note_guid'];
-            $res->name = $row['note_title'];
+            $res->name = htmlspecialchars_decode($row['note_title']);
             $res->link = $urlGen->linkToRoute(
                 'grauphel.gui.note', array('guid' => $row['note_guid'])
             );
@@ -54,5 +54,48 @@ class Provider extends \OCP\Search\Provider
         }
         return $results;
     }
+
+    /**
+     * Splits the user's query string up into several keywords
+     * that all have to be within the note (AND).
+     *
+     * Split by space, quotes are supported:
+     * - foo bar
+     *   -> searches for notes that contain "foo" and "bar"
+     * - foo "bar baz"
+     *   -> searches for notes that contain "foo" and "bar baz"
+     *
+     * @param string $query User-given query string
+     *
+     * @return array Array of keywords
+     */
+    protected function parseQuery($query)
+    {
+        $keywords = explode(' ', $query);
+        array_map('trim', $keywords);
+        $loop = 0;
+        do {
+            $changed = false;
+            foreach ($keywords as $key => &$keyword) {
+                if ($keyword{0} != '"') {
+                    continue;
+                }
+                if (substr($keyword, -1) == '"') {
+                    // "foo"
+                    $keyword = trim($keyword, '"');
+                    continue;
+                }
+                if ($key < count($keywords) -1) {
+                    //not at the end
+                    $keyword .= ' ' . $keywords[$key + 1];
+                    unset($keywords[$key + 1]);
+                    $changed = true;
+                    break;
+                }
+            }
+        } while ($changed && ++$loop < 20);
+
+        return $keywords;
+    }
 }
 ?>