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体验新版 GitCode,发现更多精彩内容 >>
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ff594b2b
编写于
11月 16, 2008
作者:
D
David Heinemeier Hansson
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差异文件
Added default_scope to Base [#1381 state:committed] (Paweł Kondzior)
上级
c5448c75
变更
4
隐藏空白更改
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并排
Showing
4 changed file
with
76 addition
and
0 deletion
+76
-0
activerecord/CHANGELOG
activerecord/CHANGELOG
+16
-0
activerecord/lib/active_record/base.rb
activerecord/lib/active_record/base.rb
+10
-0
activerecord/test/cases/method_scoping_test.rb
activerecord/test/cases/method_scoping_test.rb
+38
-0
activerecord/test/models/developer.rb
activerecord/test/models/developer.rb
+12
-0
未找到文件。
activerecord/CHANGELOG
浏览文件 @
ff594b2b
*2.3.0/3.0*
* Added default_scope to Base #1381 [Paweł Kondzior]. Example:
class Person < ActiveRecord::Base
default_scope :order => 'last_name, first_name'
end
class Company < ActiveRecord::Base
has_many :people
end
Person.all # => Person.find(:all, :order => 'last_name, first_name')
Company.find(1).people # => Person.find(:all, :order => 'last_name, first_name', :conditions => { :company_id => 1 })
*2.2.1 [RC2] (November 14th, 2008)*
* Ensure indices don't flip order in schema.rb #1266 [Jordi Bunster]
...
...
activerecord/lib/active_record/base.rb
浏览文件 @
ff594b2b
...
...
@@ -2016,6 +2016,16 @@ def subclasses #:nodoc:
@@subclasses
[
self
]
+
extra
=
@@subclasses
[
self
].
inject
([])
{
|
list
,
subclass
|
list
+
subclass
.
subclasses
}
end
# Sets the default options for the model. The format of the
# <tt>method_scoping</tt> argument is the same as in with_scope.
#
# class Person << ActiveRecord::Base
# default_scope :find => { :order => 'last_name, first_name' }
# end
def
default_scope
(
options
=
{})
self
.
scoped_methods
<<
{
:find
=>
options
,
:create
=>
options
.
is_a?
(
Hash
)
?
options
[
:conditions
]
:
{}
}
end
# Test whether the given method and optional key are scoped.
def
scoped?
(
method
,
key
=
nil
)
#:nodoc:
if
current_scoped_methods
&&
(
scope
=
current_scoped_methods
[
method
])
...
...
activerecord/test/cases/method_scoping_test.rb
浏览文件 @
ff594b2b
...
...
@@ -522,6 +522,44 @@ def test_nested_scope
end
class
DefaultScopingTest
<
ActiveRecord
::
TestCase
fixtures
:developers
def
test_default_scope
expected
=
Developer
.
find
(
:all
,
:order
=>
'salary DESC'
).
collect
{
|
dev
|
dev
.
salary
}
received
=
DeveloperOrderedBySalary
.
find
(
:all
).
collect
{
|
dev
|
dev
.
salary
}
assert_equal
expected
,
received
end
def
test_method_scope
expected
=
Developer
.
find
(
:all
,
:order
=>
'name DESC'
).
collect
{
|
dev
|
dev
.
salary
}
received
=
DeveloperOrderedBySalary
.
all_ordered_by_name
.
collect
{
|
dev
|
dev
.
salary
}
assert_equal
expected
,
received
end
def
test_nested_scope
expected
=
Developer
.
find
(
:all
,
:order
=>
'name DESC'
).
collect
{
|
dev
|
dev
.
salary
}
received
=
DeveloperOrderedBySalary
.
with_scope
(
:find
=>
{
:order
=>
'name DESC'
})
do
DeveloperOrderedBySalary
.
find
(
:all
).
collect
{
|
dev
|
dev
.
salary
}
end
assert_equal
expected
,
received
end
def
test_nested_exclusive_scope
expected
=
Developer
.
find
(
:all
,
:limit
=>
100
).
collect
{
|
dev
|
dev
.
salary
}
received
=
DeveloperOrderedBySalary
.
with_exclusive_scope
(
:find
=>
{
:limit
=>
100
})
do
DeveloperOrderedBySalary
.
find
(
:all
).
collect
{
|
dev
|
dev
.
salary
}
end
assert_equal
expected
,
received
end
def
test_overwriting_default_scope
expected
=
Developer
.
find
(
:all
,
:order
=>
'salary'
).
collect
{
|
dev
|
dev
.
salary
}
received
=
DeveloperOrderedBySalary
.
find
(
:all
,
:order
=>
'salary'
).
collect
{
|
dev
|
dev
.
salary
}
assert_equal
expected
,
received
end
end
=begin
# We disabled the scoping for has_one and belongs_to as we can't think of a proper use case
...
...
activerecord/test/models/developer.rb
浏览文件 @
ff594b2b
...
...
@@ -77,3 +77,15 @@ def raise_if_projects_empty!
raise
if
projects
.
empty?
end
end
class
DeveloperOrderedBySalary
<
ActiveRecord
::
Base
self
.
table_name
=
'developers'
default_scope
:order
=>
"salary DESC"
def
self
.
all_ordered_by_name
with_scope
(
:find
=>
{
:order
=>
"name DESC"
})
do
find
(
:all
)
end
end
end
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