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体验新版 GitCode,发现更多精彩内容 >>
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c8317cd1
编写于
7月 31, 2014
作者:
R
Rafael Mendonça França
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差异文件
Merge pull request #16363 from arthurnn/null_transaction
Null transaction
上级
88882964
057c2371
变更
2
隐藏空白更改
内联
并排
Showing
2 changed file
with
67 addition
and
70 deletion
+67
-70
activerecord/lib/active_record/connection_adapters/abstract/transaction.rb
...active_record/connection_adapters/abstract/transaction.rb
+66
-69
activerecord/lib/active_record/connection_adapters/abstract_adapter.rb
...lib/active_record/connection_adapters/abstract_adapter.rb
+1
-1
未找到文件。
activerecord/lib/active_record/connection_adapters/abstract/transaction.rb
浏览文件 @
c8317cd1
module
ActiveRecord
module
ConnectionAdapters
class
TransactionManager
#:nodoc:
def
initialize
(
connection
)
@stack
=
[]
@connection
=
connection
end
def
begin_transaction
(
options
=
{})
transaction_class
=
@stack
.
empty?
?
RealTransaction
:
SavepointTransaction
transaction
=
transaction_class
.
new
(
@connection
,
"active_record_
#{
@stack
.
size
}
"
,
options
)
@stack
.
push
(
transaction
)
transaction
end
def
commit_transaction
@stack
.
pop
.
commit
end
def
rollback_transaction
@stack
.
pop
.
rollback
end
def
within_new_transaction
(
options
=
{})
transaction
=
begin_transaction
options
yield
rescue
Exception
=>
error
transaction
.
rollback
if
transaction
raise
ensure
begin
transaction
.
commit
unless
error
rescue
Exception
transaction
.
rollback
raise
ensure
@stack
.
pop
if
transaction
end
end
def
open_transactions
@stack
.
size
end
def
current_transaction
@stack
.
last
||
closed_transaction
end
private
def
closed_transaction
@closed_transaction
||=
ClosedTransaction
.
new
end
end
class
Transaction
#:nodoc:
attr_reader
:connection
,
:state
def
initialize
(
connection
)
@connection
=
connection
@state
=
TransactionState
.
new
end
def
savepoint_name
nil
end
end
class
TransactionState
attr_reader
:parent
...
...
@@ -97,8 +30,21 @@ def set_state(state)
end
end
class
ClosedTransaction
<
Transaction
#:nodoc:
def
initialize
;
super
(
nil
);
end
class
Transaction
#:nodoc:
attr_reader
:connection
,
:state
def
initialize
(
connection
)
@connection
=
connection
@state
=
TransactionState
.
new
end
def
savepoint_name
nil
end
end
class
NullTransaction
<
Transaction
#:nodoc:
def
initialize
;
end
def
closed?
;
true
;
end
def
open?
;
false
;
end
def
joinable?
;
false
;
end
...
...
@@ -212,5 +158,56 @@ def perform_commit
connection
.
release_savepoint
(
savepoint_name
)
end
end
class
TransactionManager
#:nodoc:
def
initialize
(
connection
)
@stack
=
[]
@connection
=
connection
end
def
begin_transaction
(
options
=
{})
transaction_class
=
@stack
.
empty?
?
RealTransaction
:
SavepointTransaction
transaction
=
transaction_class
.
new
(
@connection
,
"active_record_
#{
@stack
.
size
}
"
,
options
)
@stack
.
push
(
transaction
)
transaction
end
def
commit_transaction
@stack
.
pop
.
commit
end
def
rollback_transaction
@stack
.
pop
.
rollback
end
def
within_new_transaction
(
options
=
{})
transaction
=
begin_transaction
options
yield
rescue
Exception
=>
error
transaction
.
rollback
if
transaction
raise
ensure
begin
transaction
.
commit
unless
error
rescue
Exception
transaction
.
rollback
raise
ensure
@stack
.
pop
if
transaction
end
end
def
open_transactions
@stack
.
size
end
def
current_transaction
@stack
.
last
||
NULL_TRANSACTION
end
private
NULL_TRANSACTION
=
NullTransaction
.
new
end
end
end
activerecord/lib/active_record/connection_adapters/abstract_adapter.rb
浏览文件 @
c8317cd1
...
...
@@ -46,7 +46,7 @@ module ConnectionAdapters # :nodoc:
autoload_at
'active_record/connection_adapters/abstract/transaction'
do
autoload
:TransactionManager
autoload
:
Closed
Transaction
autoload
:
Null
Transaction
autoload
:RealTransaction
autoload
:SavepointTransaction
autoload
:TransactionState
...
...
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