diff options
Diffstat (limited to 'activerecord/lib/active_record/base.rb')
| -rwxr-xr-x | activerecord/lib/active_record/base.rb | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/base.rb b/activerecord/lib/active_record/base.rb index 616b164b13..dad0573d88 100755 --- a/activerecord/lib/active_record/base.rb +++ b/activerecord/lib/active_record/base.rb @@ -574,7 +574,19 @@ module ActiveRecord #:nodoc: # with the given ID, altering the given hash of counters by the amount # given by the corresponding value: # + # ==== Options + # + # +id+ The id of the object you wish to update a counter on + # +counters+ An Array of Hashes containing the names of the fields + # to update as keys and the amount to update the field by as + # values + # + # ==== Examples + # + # # For the Post with id of 5, decrement the comment_count by 1, and + # # increment the action_count by 1 # Post.update_counters 5, :comment_count => -1, :action_count => 1 + # # Executes the following SQL: # # UPDATE posts # # SET comment_count = comment_count - 1, # # action_count = action_count + 1 |