lib/mongoid/finders.rb in mongoid-1.2.8 vs lib/mongoid/finders.rb in mongoid-1.2.9

@@ -1,8 +1,18 @@
 # encoding: utf-8
 module Mongoid #:nodoc:
   module Finders #:nodoc:
+
+    # Delegate to the criteria methods that are natural for creating a new
+    # criteria.
+    [ :all_in, :any_in, :excludes, :limit, :max, :min,
+      :not_in, :only, :order_by, :skip, :sum, :where ].each do |name|
+      define_method(name) do |*args|
+        criteria.send(name, *args)
+      end
+    end
+
     # Find +Documents+ given the conditions.
     #
     # Options:
     #
     # args: A +Hash+ with a conditions key and other options
@@ -98,40 +108,10 @@
     # <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.max(field)
-    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.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.
     #
     # Options:
     #
@@ -143,59 +123,9 @@
     # :per_page => 20)</tt>
     #
     # Returns paginated array of docs.
     def paginate(params = {})
       Criteria.translate(self, params).paginate
-    end
-
-    # Entry point for creating a new criteria from a Document. This will
-    # instantiate a new +Criteria+ object with the supplied select criterion
-    # already added to it.
-    #
-    # Options:
-    #
-    # args: A list of field names to retrict the returned fields to.
-    #
-    # Example:
-    #
-    # <tt>Person.only(:field1, :field2, :field3)</tt>
-    #
-    # Returns: <tt>Criteria</tt>
-    def only(*args)
-      criteria.only(*args)
-    end
-
-    # Convenience method for returning the sum of a specified field for all
-    # documents in the database.
-    #
-    # Options:
-    #
-    # field: The field to use when calculating the sum.
-    #
-    # Example:
-    #
-    # <tt>Person.sum(:age)</tt>
-    #
-    # Returns: <tt>Float</tt> of the sum.
-    def sum(field)
-      criteria.sum(field)
-    end
-
-    # Entry point for creating a new criteria from a Document. This will
-    # instantiate a new +Criteria+ object with the supplied select criterion
-    # already added to it.
-    #
-    # Options:
-    #
-    # selector: A where criteria to initialize.
-    #
-    # Example:
-    #
-    # <tt>Person.where(:field1 => "Value")</tt>
-    #
-    # Returns: <tt>Criteria</tt>
-    def where(selector = nil)
-      criteria.where(selector)
     end
 
     protected
     # Find the first object or create/initialize it.
     def find_or(method, attrs = {})