lib/mongoid/finders.rb in mongoid-0.8.9 vs lib/mongoid/finders.rb in mongoid-0.8.10

@@ -34,23 +34,48 @@
     # <tt>Person.find(Mongo::ObjectID.new.to_s)</tt>
     def find(*args)
       Criteria.translate(*args).execute(self)
     end
 
-    # Find a +Document+ by its id.
-    def find_by_id(id)
-      find(id)
-    end
-
     # Find the first +Document+ given the conditions.
     #
     # Options:
     #
     # args: A +Hash+ with a conditions key and other options
     #
     # <tt>Person.first(:conditions => { :attribute => "value" })</tt>
     def first(*args)
       find(:first, *args)
+    end
+
+    # Find the last +Document+ given the conditions.
+    #
+    # Options:
+    #
+    # args: A +Hash+ with a conditions key and other options
+    #
+    # <tt>Person.last(:conditions => { :attribute => "value" })</tt>
+    def last(*args)
+      return find(:last, :conditions => {}, :sort => [[:_id, :desc]]) if args.empty?
+      return find(:last, *args) unless args.empty?
+    end
+
+    # Will execute a +Criteria+ based on the +DynamicFinder+ that gets
+    # generated.
+    #
+    # Options:
+    #
+    # name: The finder method name
+    # args: The arguments to pass to the method.
+    #
+    # Example:
+    #
+    # <tt>Person.find_all_by_title_and_age("Sir", 30)</tt>
+    def method_missing(name, *args)
+      dyna = DynamicFinder.new(name, *args)
+      finder, conditions = dyna.finder, dyna.conditions
+      results = Criteria.translate(finder, :conditions => conditions).execute(self)
+      results ? results : dyna.create(self)
     end
 
     # Find all documents in paginated fashion given the supplied arguments.
     # If no parameters are passed just default to offset 0 and limit 20.
     #