X-Git-Url: https://git.mdrn.pl/fnpeditor.git/blobdiff_plain/16c90b3616f1645aab9fe284fd3b89641dfb42f2..67d116b3f6f2b4a62f31433bd7b3cb85ecc0c171:/src/wlxml/extensions/metadata/metadata.js

diff --git a/src/wlxml/extensions/metadata/metadata.js b/src/wlxml/extensions/metadata/metadata.js
index 54b3f96..acd404c 100644
--- a/src/wlxml/extensions/metadata/metadata.js
+++ b/src/wlxml/extensions/metadata/metadata.js
@@ -8,8 +8,8 @@ var _ = require('libs/underscore'),
 
 
 var Row = function(key, value, metadata) {
-    this.key = key;
-    this.value  = value;
+    this.key = key || '';
+    this.value  = value || '';
     this.metadata = metadata;
 };
 
@@ -85,13 +85,23 @@ _.extend(Metadata.prototype, {
             this.triggerChangeEvent('metadataRemoved', {row: t.row});
         },
         undo: function(t) {
-            var metadata = this.getMetadata();
-            metadata._rows.splice(t.rowIdx, 0, new Row(t.row.getKey(), t.row.getValue(), metadata));
+            var metadata = this.getMetadata(),
+                row = new Row(t.row.getKey(), t.row.getValue(), metadata);
+            metadata._rows.splice(t.rowIdx, 0, row);
+            this.triggerChangeEvent('metadataAdded', {row: row});
         }
     }),
 
-    forEach: function(callback) {
-        return this._rows.forEach(callback);
+    _iter: function(method, callback, key) {
+        return this._rows
+            .filter(function(row) { return !key || row.getKey() === key; })
+            [method](function(row) { return callback(row); });
+    },
+    forEach: function(callback, key) {
+        return this._iter('forEach', callback, key);
+    },
+    some: function(callback, key) {
+        return this._iter('some', callback, key);
     },
     add: function(rowDesc, options) {
         var row;