lib/mongoid/finders.rb in mongoid-0.11.7 vs lib/mongoid/finders.rb in mongoid-0.11.8

@@ -74,10 +74,25 @@
     # <tt>Person.last(:conditions => { :attribute => "value" })</tt>
     def last(*args)
       find(:last, *args)
     end
 
+    # Convenience method for returning the max value of a field.
+    #
+    # Options:
+    #
+    # field: The field to use when calculating the max.
+    #
+    # Example:
+    #
+    # <tt>Person.max(:age)</tt>
+    #
+    # Returns: <tt>Float</tt> max value.
+    def max(field)
+      Criteria.new(self).max(field)
+    end
+
     # Will execute a +Criteria+ based on the +DynamicFinder+ that gets
     # generated.
     #
     # Options:
     #
@@ -90,9 +105,24 @@
     def method_missing(name, *args)
       dyna = DynamicFinder.new(name, *args)
       finder, conditions = dyna.finder, dyna.conditions
       results = find(finder, :conditions => conditions)
       results ? results : dyna.create(self)
+    end
+
+    # Convenience method for returning the min value of a field.
+    #
+    # Options:
+    #
+    # field: The field to use when calculating the min.
+    #
+    # Example:
+    #
+    # <tt>Person.min(:age)</tt>
+    #
+    # Returns: <tt>Float</tt> min value.
+    def min(field)
+      Criteria.new(self).min(field)
     end
 
     # Find all documents in paginated fashion given the supplied arguments.
     # If no parameters are passed just default to offset 0 and limit 20.
     #