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体验新版 GitCode,发现更多精彩内容 >>
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2f5ceffd
编写于
10月 08, 2015
作者:
R
Rafael Mendonça França
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Merge pull request #21911 from tommyblue/master
Modify the scope method documentation
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a7bd1c7c
e2a42243
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+8
-3
activerecord/lib/active_record/scoping/named.rb
activerecord/lib/active_record/scoping/named.rb
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activerecord/lib/active_record/scoping/named.rb
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@@ -39,8 +39,12 @@ def default_scoped # :nodoc:
end
end
# Adds a class method for retrieving and querying objects. A \scope
# represents a narrowing of a database query, such as
# Adds a class method for retrieving and querying objects.
# The method is intended to return an <tt>ActiveRecord::Relation</tt>
# object, which is composable with other scopes.
# If it returns +nil+ or +false+, an <tt>all</tt> scope is returned instead.
#
# A \scope represents a narrowing of a database query, such as
# <tt>where(color: :red).select('shirts.*').includes(:washing_instructions)</tt>.
#
# class Shirt < ActiveRecord::Base
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@@ -66,7 +70,8 @@ def default_scoped # :nodoc:
# end
#
# Unlike <tt>Shirt.find(...)</tt>, however, the object returned by
# <tt>Shirt.red</tt> is not an Array; it resembles the association object
# <tt>Shirt.red</tt> is not an Array but an <tt>ActiveRecord::Relation</tt>,
# which is composable with other scopes; it resembles the association object
# constructed by a +has_many+ declaration. For instance, you can invoke
# <tt>Shirt.red.first</tt>, <tt>Shirt.red.count</tt>,
# <tt>Shirt.red.where(size: 'small')</tt>. Also, just as with the
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