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前往新版Gitcode,体验更适合开发者的 AI 搜索 >>
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d326b029
编写于
5月 05, 2020
作者:
R
Ryuta Kamizono
提交者:
GitHub
5月 05, 2020
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差异文件
Merge pull request #39051 from kamipo/more_concise_or_ast
More concise Arel `Or` ast and make `Or` visitor non recursive
上级
f3382bfb
7d3bff1f
变更
3
隐藏空白更改
内联
并排
Showing
3 changed file
with
40 addition
and
9 deletion
+40
-9
activerecord/lib/active_record/relation/where_clause.rb
activerecord/lib/active_record/relation/where_clause.rb
+10
-4
activerecord/lib/arel/visitors/to_sql.rb
activerecord/lib/arel/visitors/to_sql.rb
+12
-3
activerecord/test/cases/relation/or_test.rb
activerecord/test/cases/relation/or_test.rb
+18
-2
未找到文件。
activerecord/lib/active_record/relation/where_clause.rb
浏览文件 @
d326b029
...
...
@@ -39,10 +39,16 @@ def or(other)
if
left
.
empty?
||
right
.
empty?
common
else
or_clause
=
WhereClause
.
new
(
[
left
.
ast
.
or
(
right
.
ast
)],
)
common
+
or_clause
left
=
left
.
ast
left
=
left
.
expr
if
left
.
is_a?
(
Arel
::
Nodes
::
Grouping
)
right
=
right
.
ast
right
=
right
.
expr
if
right
.
is_a?
(
Arel
::
Nodes
::
Grouping
)
or_clause
=
Arel
::
Nodes
::
Or
.
new
(
left
,
right
)
common
.
predicates
<<
Arel
::
Nodes
::
Grouping
.
new
(
or_clause
)
common
end
end
...
...
activerecord/lib/arel/visitors/to_sql.rb
浏览文件 @
d326b029
...
...
@@ -546,9 +546,18 @@ def visit_Arel_Nodes_And(o, collector)
end
def
visit_Arel_Nodes_Or
(
o
,
collector
)
collector
=
visit
o
.
left
,
collector
collector
<<
" OR "
visit
o
.
right
,
collector
stack
=
[
o
.
right
,
o
.
left
]
while
o
=
stack
.
pop
if
o
.
is_a?
(
Arel
::
Nodes
::
Or
)
stack
.
push
o
.
right
,
o
.
left
else
visit
o
,
collector
collector
<<
" OR "
unless
stack
.
empty?
end
end
collector
end
def
visit_Arel_Nodes_Assignment
(
o
,
collector
)
...
...
activerecord/test/cases/relation/or_test.rb
浏览文件 @
d326b029
...
...
@@ -4,11 +4,11 @@
require
"models/author"
require
"models/categorization"
require
"models/post"
require
"models/citation"
module
ActiveRecord
class
OrTest
<
ActiveRecord
::
TestCase
fixtures
:posts
fixtures
:authors
,
:author_addresses
fixtures
:posts
,
:authors
,
:author_addresses
def
test_or_with_relation
expected
=
Post
.
where
(
"id = 1 or id = 2"
).
to_a
...
...
@@ -151,4 +151,20 @@ def test_structurally_incompatible_values
end
end
end
# The maximum expression tree depth is 1000 by default for SQLite3.
# https://www.sqlite.org/limits.html#max_expr_depth
unless
current_adapter?
(
:SQLite3Adapter
)
class
TooManyOrTest
<
ActiveRecord
::
TestCase
fixtures
:citations
def
test_too_many_or
citations
=
6000
.
times
.
map
do
|
i
|
Citation
.
where
(
id:
i
,
book2_id:
i
*
i
)
end
assert_equal
6000
,
citations
.
inject
(
&
:or
).
count
end
end
end
end
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