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体验新版 GitCode,发现更多精彩内容 >>
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f855090a
编写于
12月 25, 2010
作者:
A
Aaron Patterson
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电子邮件补丁
差异文件
use arel to compile SQL statements
上级
ec13305b
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并排
Showing
1 changed file
with
15 addition
and
6 deletion
+15
-6
activerecord/lib/active_record/association_preload.rb
activerecord/lib/active_record/association_preload.rb
+15
-6
未找到文件。
activerecord/lib/active_record/association_preload.rb
浏览文件 @
f855090a
...
...
@@ -193,14 +193,15 @@ def preload_has_and_belongs_to_many_association(records, reflection, preload_opt
records
.
each
{
|
record
|
record
.
send
(
reflection
.
name
).
loaded
}
options
=
reflection
.
options
conditions
=
"t0.
#{
reflection
.
primary_key_name
}
#{
in_or_equals_for_ids
(
ids
)
}
"
conditions
<<
append_conditions
(
reflection
,
preload_options
)
right
=
Arel
::
Table
.
new
(
options
[
:join_table
]).
alias
(
't0'
)
condition
=
left
[
reflection
.
klass
.
primary_key
].
eq
(
custom_conditions
=
append_conditions
(
reflection
,
preload_options
)
join_condition
=
left
[
reflection
.
klass
.
primary_key
].
eq
(
right
[
reflection
.
association_foreign_key
])
join
=
left
.
create_join
(
right
,
left
.
create_on
(
condition
))
join
=
left
.
create_join
(
right
,
left
.
create_on
(
join_
condition
))
select
=
[
# FIXME: options[:select] is always nil in the tests. Do we really
# need it?
...
...
@@ -216,8 +217,16 @@ def preload_has_and_belongs_to_many_association(records, reflection, preload_opt
associated_records_proxy
.
joins_values
=
[
join
]
associated_records_proxy
.
select_values
=
select
method
=
ids
.
length
>
1
?
'in'
:
'eq'
all_associated_records
=
associated_records
(
ids
)
do
|
some_ids
|
associated_records_proxy
.
where
([
conditions
,
some_ids
]).
to_a
conditions
=
right
[
reflection
.
primary_key_name
].
send
(
method
,
some_ids
.
length
==
1
?
some_ids
.
first
:
some_ids
)
conditions
=
conditions
.
and
(
custom_conditions
)
unless
custom_conditions
.
empty?
associated_records_proxy
.
where
(
conditions
).
to_a
end
set_association_collection_records
(
id_to_record_map
,
reflection
.
name
,
all_associated_records
,
'the_parent_record_id'
)
...
...
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