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Vijay Dev 2011-09-20 19:39:46 +05:30
parent 7ed97bc814
commit ed1ada84ac
1 changed files with 4 additions and 4 deletions
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8
activerecord/lib/active_record/relation/query_methods.rb
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@ -47,21 +47,21 @@ module ActiveRecord
# converting them into an array and iterating through them using Array#select.
#
# Second: Modifies the SELECT statement for the query so that only certain
# fields are retreived:
# fields are retrieved:
#
# >> Model.select(:field)
# => [#<Model field:value>]
#
# Although in the above example it looks as though this method returns an
# array, in actual fact it returns a relation object and can have other query
# array, it actually returns a relation object and can have other query
# methods appended to it, such as the other methods in ActiveRecord::QueryMethods.
#
# This method will also take multiple parameters:
#
# >> Model.select(:field, :other_field, :and_one_more)
# => [#<Model field: "value", other_field: "value", :and_one_more: "value">]
# => [#<Model field: "value", other_field: "value", and_one_more: "value">]
#
# Any attributes that do not have fields retreived by a select
# Any attributes that do not have fields retrieved by a select
# will return `nil` when the getter method for that attribute is used:
#
# >> Model.select(:field).first.other_field