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体验新版 GitCode,发现更多精彩内容 >>
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51924d49
编写于
7月 28, 2010
作者:
N
Neeraj Singh
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more documentation for update_attribute
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activerecord/lib/active_record/persistence.rb
activerecord/lib/active_record/persistence.rb
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activerecord/lib/active_record/persistence.rb
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51924d49
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@@ -105,13 +105,14 @@ def becomes(klass)
# Updates a single attribute and saves the record.
# This is especially useful for boolean flags on existing records. Also note that
#
# * validation is skipped
# * The attribute being updated must be a column name.
# * Validation is skipped
# * No callbacks are invoked
# * updated_at/updated_on column is updated if that column is available
# *
d
oes not work on associations
# *
does not work on attr_accessor attributes. The attribute that is being updated must be column name.
# *
d
oes not work on new record. <tt>record.new_record?</tt> should return false for this method to work.
# *
u
pdates only the attribute that is input to the method. If there are other changed attributes then
# *
D
oes not work on associations
# *
Does not work on attr_accessor attributes.
# *
D
oes not work on new record. <tt>record.new_record?</tt> should return false for this method to work.
# *
U
pdates only the attribute that is input to the method. If there are other changed attributes then
# those attributes are left alone. In that case even after this method has done its work <tt>record.changed?</tt>
# will return true.
#
...
...
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