diff options
Diffstat (limited to 'activerecord/lib/active_record/calculations.rb')
| -rw-r--r-- | activerecord/lib/active_record/calculations.rb | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/activerecord/lib/active_record/calculations.rb b/activerecord/lib/active_record/calculations.rb index 7a9377587f..e08520f15f 100644 --- a/activerecord/lib/active_record/calculations.rb +++ b/activerecord/lib/active_record/calculations.rb @@ -15,12 +15,10 @@ module ActiveRecord # The third approach, count using options, accepts an option hash as the only parameter. The options are: # # * <tt>:conditions</tt>: An SQL fragment like "administrator = 1" or [ "user_name = ?", username ]. See conditions in the intro. - # * <tt>:joins</tt>: Either an SQL fragment for additional joins like "LEFT JOIN comments ON comments.post_id = id". (Rarely needed). - # or names associations in the same form used for the :include option. + # * <tt>:joins</tt>: Either an SQL fragment for additional joins like "LEFT JOIN comments ON comments.post_id = id" (rarely needed) + # or named associations in the same form used for the :include option, which will perform an INNER JOIN on the associated table(s). # If the value is a string, then the records will be returned read-only since they will have attributes that do not correspond to the table's columns. # Pass :readonly => false to override. - # See adding joins for associations under Associations. - # # * <tt>:include</tt>: Named associations that should be loaded alongside using LEFT OUTER JOINs. The symbols named refer # to already defined associations. When using named associations, count returns the number of DISTINCT items for the model you're counting. # See eager loading under Associations. |