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| author | Genadi Samokovarov <gsamokovarov@gmail.com> | 2016-05-30 14:53:03 +0300 |
|---|---|---|
| committer | Genadi Samokovarov <gsamokovarov@gmail.com> | 2016-05-30 14:53:03 +0300 |
| commit | a11a3861b474ef642ac48796572d6276436c7eb0 (patch) | |
| tree | 5e7da0567079981991e9a23696c7d20faf4c9f2b /activerecord/lib/active_record/associations/collection_proxy.rb | |
| parent | e6ed3aaf437887bc25a1f715f21c5ca3ebbc966f (diff) | |
| parent | 3f2e83d964fcb4cd7f7f2ed8fb2b2592ffc57647 (diff) | |
| download | rails-a11a3861b474ef642ac48796572d6276436c7eb0.tar.gz rails-a11a3861b474ef642ac48796572d6276436c7eb0.tar.bz2 rails-a11a3861b474ef642ac48796572d6276436c7eb0.zip | |
Merge branch 'master' into always-inherit-from-application-record
Diffstat (limited to 'activerecord/lib/active_record/associations/collection_proxy.rb')
| -rw-r--r-- | activerecord/lib/active_record/associations/collection_proxy.rb | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/activerecord/lib/active_record/associations/collection_proxy.rb b/activerecord/lib/active_record/associations/collection_proxy.rb index b9aed05135..5d1e7ffb73 100644 --- a/activerecord/lib/active_record/associations/collection_proxy.rb +++ b/activerecord/lib/active_record/associations/collection_proxy.rb @@ -597,7 +597,7 @@ module ActiveRecord # Pet.find(1) # # => ActiveRecord::RecordNotFound: Couldn't find Pet with 'id'=1 # - # You can pass +Fixnum+ or +String+ values, it finds the records + # You can pass +Integer+ or +String+ values, it finds the records # responding to the +id+ and executes delete on them. # # class Person < ActiveRecord::Base @@ -661,7 +661,7 @@ module ActiveRecord # # Pet.find(1, 2, 3) # => ActiveRecord::RecordNotFound: Couldn't find all Pets with 'id': (1, 2, 3) # - # You can pass +Fixnum+ or +String+ values, it finds the records + # You can pass +Integer+ or +String+ values, it finds the records # responding to the +id+ and then deletes them from the database. # # person.pets.size # => 3 @@ -715,12 +715,13 @@ module ActiveRecord end alias uniq distinct - # Count all records using SQL. + # Count all records. # # class Person < ActiveRecord::Base # has_many :pets # end # + # # This will perform the count using SQL. # person.pets.count # => 3 # person.pets # # => [ @@ -728,8 +729,13 @@ module ActiveRecord # # #<Pet id: 2, name: "Spook", person_id: 1>, # # #<Pet id: 3, name: "Choo-Choo", person_id: 1> # # ] - def count(column_name = nil) - @association.count(column_name) + # + # Passing a block will select all of a person's pets in SQL and then + # perform the count using Ruby. + # + # person.pets.count { |pet| pet.name.include?('-') } # => 2 + def count(column_name = nil, &block) + @association.count(column_name, &block) end # Returns the size of the collection. If the collection hasn't been loaded, |