Added Modify Subnet Group

lib/fog/aws/parsers/rds/modify_db_subnet_group.rb

@@ -0,0 +1,24 @@
+module Fog
+  module Parsers
+    module AWS
+      module RDS
+        class ModifyDBSubnetGroup < Fog::Parsers::Base
+          def reset
+            @response = { 'ModifyDBSubnetGrouptAttributeResult' => {}, 'ResponseMetadata' => {} }
+          end
+
+          def start_element(name, attrs = [])
+            super
+          end
+
+          def end_element(name)
+            case name
+            when 'RequestId'
+              @response['ResponseMetadata'][name] = value
+            end
+          end
+        end
+      end
+    end
+  end
+end

lib/fog/aws/rds.rb

@@ -51,7 +51,7 @@ module Fog
       request :create_db_subnet_group
       request :describe_db_subnet_groups
       request :delete_db_subnet_group
-      # TODO: :modify_db_subnet_group
+      request :modify_db_subnet_group
 
       request :describe_orderable_db_instance_options
 

lib/fog/aws/requests/rds/modify_db_subnet_group.rb

@@ -0,0 +1,44 @@
+module Fog
+  module AWS
+    class RDS
+      class Real
+        require 'fog/aws/parsers/rds/modify_db_subnet_group.rb'
+
+        # Creates a db subnet group
+        # http://docs.aws.amazon.com/AmazonRDS/2012-01-15/APIReference/API_ModifyDBSubnetGroup.html
+        # ==== Parameters
+        # * DBSubnetGroupName <~String> - The name for the DB Subnet Group. This value is stored as a lowercase string. Must contain no more than 255 alphanumeric characters or hyphens. Must not be "Default".
+        # * SubnetIds <~Array> - The EC2 Subnet IDs for the DB Subnet Group.
+        # * DBSubnetGroupDescription <~String> - The description for the DB Subnet Group
+        # ==== Returns
+        # * response<~Excon::Response>:
+        #   * body<~Hash>:
+        def modify_db_subnet_group(name, subnet_ids, description = nil)
+          params = { 'Action'  => 'ModifyDBSubnetGroup',
+            'DBSubnetGroupName' => name,
+            'DBSubnetGroupDescription' => description,
+            :parser   => Fog::Parsers::AWS::RDS::ModifyDBSubnetGroup.new }
+          params.merge!(Fog::AWS.indexed_param("SubnetIds.member", Array(subnet_ids)))
+          request(params)
+        end
+      end
+    end
+  end
+end
+
+=begin
+rds.modify_db_subnet_group('kd-subnet-group', ['subnet-5259d03a', 'subnet-eb518f83'], 'hahaha!') #=>
+  {:subnets=>
+    [{:availability_zone=>
+       {:name=>"us-east-1d", :provisioned_iops_capable=>false},
+      :status=>"Active",
+      :subnet_id=>"subnet-5259d03a"},
+     {:availability_zone=>
+       {:name=>"us-east-1a", :provisioned_iops_capable=>false},
+      :status=>"Active",
+      :subnet_id=>"subnet-eb518f83"}],
+   :vpc_id=>"vpc-10518f78",
+   :status=>"Complete",
+   :description=>"hahaha!",
+   :name=>"kd-subnet-group"}
+=end