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author | Vijay Dev <vijaydev.cse@gmail.com> | 2012-12-04 22:26:16 +0530 |
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committer | Vijay Dev <vijaydev.cse@gmail.com> | 2012-12-04 22:26:16 +0530 |
commit | 40e16121c05f10f9b75b6cd68c32092876142861 (patch) | |
tree | ef029336773e706cad2442d232a184ff0db38efe /activerecord/lib/active_record/relation/calculations.rb | |
parent | 9d3ce6c7d24fb8fe63f4bde4718e6af6225e5a98 (diff) | |
parent | 2b847a0a9b56c7ede40012c7b3bd8ec90d6c111c (diff) | |
download | rails-40e16121c05f10f9b75b6cd68c32092876142861.tar.gz rails-40e16121c05f10f9b75b6cd68c32092876142861.tar.bz2 rails-40e16121c05f10f9b75b6cd68c32092876142861.zip |
Merge branch 'master' of github.com:lifo/docrails
Conflicts:
guides/source/migrations.md
Diffstat (limited to 'activerecord/lib/active_record/relation/calculations.rb')
-rw-r--r-- | activerecord/lib/active_record/relation/calculations.rb | 9 |
1 files changed, 2 insertions, 7 deletions
diff --git a/activerecord/lib/active_record/relation/calculations.rb b/activerecord/lib/active_record/relation/calculations.rb index 99e77e007a..ccc14dddeb 100644 --- a/activerecord/lib/active_record/relation/calculations.rb +++ b/activerecord/lib/active_record/relation/calculations.rb @@ -76,18 +76,17 @@ module ActiveRecord # # values = Person.group('last_name').maximum(:age) # puts values["Drake"] - # => 43 + # # => 43 # # drake = Family.find_by_last_name('Drake') # values = Person.group(:family).maximum(:age) # Person belongs_to :family # puts values[drake] - # => 43 + # # => 43 # # values.each do |family, max_age| # ... # end # - # Examples: # Person.calculate(:count, :all) # The same as Person.count # Person.average(:age) # SELECT AVG(age) FROM people... # @@ -124,8 +123,6 @@ module ActiveRecord # the plucked column names, if they can be deduced. Plucking an SQL fragment # returns String values by default. # - # Examples: - # # Person.pluck(:id) # # SELECT people.id FROM people # # => [1, 2, 3] @@ -182,8 +179,6 @@ module ActiveRecord # Pluck all the ID's for the relation using the table's primary key # - # Examples: - # # Person.ids # SELECT people.id FROM people # Person.joins(:companies).ids # SELECT people.id FROM people INNER JOIN companies ON companies.person_id = people.id def ids |