1 files changed, 47 insertions, 0 deletions
diff --git a/framework/Web/Javascripts/prototype/hash.js b/framework/Web/Javascripts/prototype/hash.js
new file mode 100644
index 00000000..81a77f1c
--- /dev/null
+++ b/framework/Web/Javascripts/prototype/hash.js
@@ -0,0 +1,47 @@
+var Hash = {
+  _each: function(iterator) {
+    for (key in this) {
+      var value = this[key];
+      if (typeof value == 'function') continue;
+      
+      var pair = [key, value];
+      pair.key = key;
+      pair.value = value;
+      iterator(pair);
+    }
+  },
+  
+  keys: function() {
+    return this.pluck('key');
+  },
+  
+  values: function() {
+    return this.pluck('value');
+  },
+  
+  merge: function(hash) {
+    return $H(hash).inject($H(this), function(mergedHash, pair) {
+      mergedHash[pair.key] = pair.value;
+      return mergedHash;
+    });
+  },
+  
+  toQueryString: function() {
+    return this.map(function(pair) {
+      return pair.map(encodeURIComponent).join('=');
+    }).join('&');
+  },
+  
+  inspect: function() {
+    return '#<Hash:{' + this.map(function(pair) {
+      return pair.map(Object.inspect).join(': ');
+    }).join(', ') + '}>';
+  }
+}
+
+function $H(object) {
+  var hash = Object.extend({}, object || {});
+  Object.extend(hash, Enumerable);
+  Object.extend(hash, Hash);
+  return hash;
+}