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体验新版 GitCode,发现更多精彩内容 >>
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64454412
编写于
6月 16, 2010
作者:
R
Rizwan Reza
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差异文件
Adds title to the rest of the files in activerecord/lib
上级
4e3eec3d
变更
2
隐藏空白更改
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Showing
2 changed file
with
7 addition
and
2 deletion
+7
-2
activerecord/lib/active_record/transactions.rb
activerecord/lib/active_record/transactions.rb
+4
-2
activerecord/lib/active_record/validations.rb
activerecord/lib/active_record/validations.rb
+3
-0
未找到文件。
activerecord/lib/active_record/transactions.rb
浏览文件 @
64454412
...
...
@@ -11,7 +11,8 @@ class TransactionError < ActiveRecordError # :nodoc:
included
do
define_callbacks
:commit
,
:rollback
,
:terminator
=>
"result == false"
,
:scope
=>
[
:kind
,
:name
]
end
# = Active Record Transactions
#
# Transactions are protective blocks where SQL statements are only permanent
# if they can all succeed as one atomic action. The classic example is a
# transfer between two accounts where you can only have a deposit if the
...
...
@@ -19,7 +20,8 @@ class TransactionError < ActiveRecordError # :nodoc:
# the database and guard the data against program errors or database
# break-downs. So basically you should use transaction blocks whenever you
# have a number of statements that must be executed together or not at all.
# Example:
#
# For example:
#
# ActiveRecord::Base.transaction do
# david.withdrawal(100)
...
...
activerecord/lib/active_record/validations.rb
浏览文件 @
64454412
module
ActiveRecord
# = Active Record Validations
#
# Raised by <tt>save!</tt> and <tt>create!</tt> when the record is invalid. Use the
# +record+ method to retrieve the record which did not validate.
#
# begin
# complex_operation_that_calls_save!_internally
# rescue ActiveRecord::RecordInvalid => invalid
...
...
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