lib/rocket_chat/util.rb in rocketchat-0.0.2 vs lib/rocket_chat/util.rb in rocketchat-0.0.3

@@ -7,14 +7,39 @@
     # Stringify symbolized hash keys
     # @param [Hash] hash A string/symbol keyed hash
     # @return Stringified hash
     #
     def stringify_hash_keys(hash)
-      newhash = {}
+      new_hash = {}
+      hash.each { |key, value| new_hash[key.to_s] = value }
+      new_hash
+    end
+    module_function :stringify_hash_keys
+
+    #
+    # Slice keys from hash
+    # @param [Hash] hash A hash to slice key/value pairs from
+    # @param [Array] *keys The keys to be sliced
+    # @return Hash filtered by keys
+    #
+    def slice_hash(hash, *keys)
+      return {} if keys.length.zero?
+
+      new_hash = {}
       hash.each do |key, value|
-        newhash[key.to_s] = value
+        new_hash[key] = value if keys.include? key
       end
-      newhash
+      new_hash
     end
-    module_function :stringify_hash_keys
+    module_function :slice_hash
+
+    #
+    # Camelize a string or symbol
+    # @param [String/Symbol] string A string or symbol
+    # @return a camelized string
+    #
+    def camelize(string)
+      string.to_s.gsub(/_([a-z])/) { $1.upcase }
+    end
+    module_function :camelize
   end
 end