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体验新版 GitCode,发现更多精彩内容 >>
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f0bf1cf7
编写于
9月 28, 2010
作者:
A
Aaron Patterson
浏览文件
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差异文件
refactoring join_sql to return nil if there are no sources
上级
f4c12fcc
变更
4
隐藏空白更改
内联
并排
Showing
4 changed file
with
24 addition
and
11 deletion
+24
-11
lib/arel/select_manager.rb
lib/arel/select_manager.rb
+2
-0
lib/arel/table.rb
lib/arel/table.rb
+10
-11
spec/select_manager_spec.rb
spec/select_manager_spec.rb
+5
-0
spec/table_spec.rb
spec/table_spec.rb
+7
-0
未找到文件。
lib/arel/select_manager.rb
浏览文件 @
f0bf1cf7
...
...
@@ -128,6 +128,8 @@ def take limit
end
def
join_sql
return
nil
unless
@ctx
.
froms
viz
=
Visitors
::
JoinSql
.
new
@engine
Nodes
::
SqlLiteral
.
new
viz
.
accept
@ctx
end
...
...
lib/arel/table.rb
浏览文件 @
f0bf1cf7
...
...
@@ -49,40 +49,39 @@ def joins manager
end
def
join
relation
,
klass
=
Nodes
::
InnerJoin
return
select_manager
unless
relation
return
from
(
self
)
unless
relation
sm
=
SelectManager
.
new
(
@engine
)
case
relation
when
String
,
Nodes
::
SqlLiteral
raise
if
relation
.
blank?
sm
.
from
Nodes
::
StringJoin
.
new
(
self
,
relation
)
from
Nodes
::
StringJoin
.
new
(
self
,
relation
)
else
sm
.
from
klass
.
new
(
self
,
relation
,
nil
)
from
klass
.
new
(
self
,
relation
,
nil
)
end
end
def
group
*
columns
select_manager
.
group
(
*
columns
)
from
(
self
)
.
group
(
*
columns
)
end
def
order
*
expr
select_manager
.
order
(
*
expr
)
from
(
self
)
.
order
(
*
expr
)
end
def
where
condition
select_manager
.
where
condition
from
(
self
)
.
where
condition
end
def
project
*
things
select_manager
.
project
(
*
things
)
from
(
self
)
.
project
(
*
things
)
end
def
take
amount
select_manager
.
take
amount
from
(
self
)
.
take
amount
end
def
having
expr
select_manager
.
having
expr
from
(
self
)
.
having
expr
end
def
columns
...
...
@@ -98,7 +97,7 @@ def [] name
end
def
select_manager
SelectManager
.
new
(
@engine
,
self
)
SelectManager
.
new
(
@engine
)
end
private
...
...
spec/select_manager_spec.rb
浏览文件 @
f0bf1cf7
...
...
@@ -299,6 +299,11 @@ def execute sql, name = nil, *args
manager
.
join_sql
.
should
be_like
%{ 'hello' }
check
manager
.
joins
(
manager
).
should
==
manager
.
join_sql
end
it
'returns nil join sql'
do
manager
=
Arel
::
SelectManager
.
new
Table
.
engine
manager
.
join_sql
.
should
be_nil
end
end
describe
'order_clauses'
do
...
...
spec/table_spec.rb
浏览文件 @
f0bf1cf7
...
...
@@ -12,6 +12,13 @@ module Arel
end
end
describe
'select_manager'
do
it
'should return an empty select manager'
do
sm
=
@relation
.
select_manager
sm
.
to_sql
.
should
be_like
'SELECT'
end
end
describe
'having'
do
it
'adds a having clause'
do
mgr
=
@relation
.
having
@relation
[
:id
].
eq
(
10
)
...
...
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