diff options
Diffstat (limited to 'activerecord/lib/active_record')
-rw-r--r-- | activerecord/lib/active_record/relation/query_methods.rb | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/relation/query_methods.rb b/activerecord/lib/active_record/relation/query_methods.rb index f69b85af66..f88493df8a 100644 --- a/activerecord/lib/active_record/relation/query_methods.rb +++ b/activerecord/lib/active_record/relation/query_methods.rb @@ -240,6 +240,27 @@ module ActiveRecord self end + # Allows you to change a previously set select statement. + # + # Post.select(:title, :body) + # # SELECT `posts.title`, `posts.body` FROM `posts` + # + # Post.select(:title, :body).reselect(:created_at) + # # SELECT `posts.created_at` FROM `posts` + # + # This is short-hand for <tt>unscope(:select).select(fields)</tt>. + # Note that we're unscoping the entire select statement. + def reselect(*args) + check_if_method_has_arguments!(:reselect, args) + spawn.reselect!(*args) + end + + # Same as #reselect but operates on relation in-place instead of copying. + def reselect!(*args) # :nodoc: + self.select_values = args + self + end + # Allows to specify a group attribute: # # User.group(:name) |