Mercurial > browser-couch

changeset 1:972d973433c7

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Documents is now an array, and an index mapping document IDs to their position in the array is maintained.
author Atul Varma <varmaa@toolness.com>
date Thu, 09 Apr 2009 17:20:10 -0700
parents 3c23e383cd32
children 3997e13ca428
files browser-couch.js
diffstat 1 files changed, 19 insertions(+), 9 deletions(-) [+]
line wrap: on
line diff
--- a/browser-couch.js	Thu Apr 09 16:17:58 2009 -0700
+++ b/browser-couch.js	Thu Apr 09 17:20:10 2009 -0700
@@ -1,12 +1,24 @@
 var BrowserCouch = {
   get: function BC_get(name, cb) {
-    cb(new this._DB(name, new Object()));
+    cb(new this._DB(name, []));
   },
 
   _DB: function BC__DB(name, documents) {
+    var docIdIndex = {};
+
+    function putSingleDocument(doc) {
+      if (doc.id in docIdIndex)
+        documents[docIdIndex[doc.id]] = doc;
+      else
+        docIdIndex[doc.id] = documents.push(doc);
+    }
+
+    for (var i = 0; i < documents.length; i++)
+      putSingleDocument(documents[i]);
+
     this.get = function DB_get(id, cb) {
-      if (documents[id])
-        cb(documents[id]);
+      if (id in docIdIndex)
+        cb(documents[docIdIndex[id]]);
       else
         cb(null);
     };
@@ -14,9 +26,9 @@
     this.put = function DB_put(document, cb) {
       if (document.constructor.name == "Array") {
         for (var i = 0; i < document.length; i++)
-          documents[document[i].id] = document[i];
+          putSingleDocument(document[i]);
       } else
-        documents[document.id] = document;
+        putSingleDocument(document);
       cb();
     };
 
@@ -38,10 +50,8 @@
         mapResult[key].push(value);
       }
 
-      for (id in documents) {
-        var document = documents[id];
-        map(document, emit);
-      }
+      for (var i = 0; i < documents.length; i++)
+        map(documents[i], emit);
 
       if (reduce) {
         var keys = [];