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体验新版 GitCode,发现更多精彩内容 >>
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161ab28b
编写于
6月 20, 2008
作者:
D
David Heinemeier Hansson
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差异文件
Added block-handling to Enumerable#many? (Damian Janowski) [#452 state:resolved]
上级
00ba4c0c
变更
3
隐藏空白更改
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并排
Showing
3 changed file
with
11 addition
and
4 deletion
+11
-4
activesupport/CHANGELOG
activesupport/CHANGELOG
+1
-1
activesupport/lib/active_support/core_ext/enumerable.rb
activesupport/lib/active_support/core_ext/enumerable.rb
+3
-1
activesupport/test/core_ext/enumerable_test.rb
activesupport/test/core_ext/enumerable_test.rb
+7
-2
未找到文件。
activesupport/CHANGELOG
浏览文件 @
161ab28b
...
@@ -6,7 +6,7 @@
...
@@ -6,7 +6,7 @@
* Added Object#present? which is equivalent to !Object#blank? [DHH]
* Added Object#present? which is equivalent to !Object#blank? [DHH]
* Added Enumberable#many? to encapsulate collection.size > 1 [DHH]
* Added Enumberable#many? to encapsulate collection.size > 1 [DHH
/Damian Janowski
]
* Add more standard Hash methods to ActiveSupport::OrderedHash [Steve Purcell]
* Add more standard Hash methods to ActiveSupport::OrderedHash [Steve Purcell]
...
...
activesupport/lib/active_support/core_ext/enumerable.rb
浏览文件 @
161ab28b
...
@@ -79,7 +79,9 @@ def index_by
...
@@ -79,7 +79,9 @@ def index_by
end
end
# Returns true if the collection has more than 1 element. Functionally equivalent to collection.size > 1.
# Returns true if the collection has more than 1 element. Functionally equivalent to collection.size > 1.
def
many?
# Works with a block too ala any?, so people.many? { |p| p.age > 26 } # => returns true if more than 1 person is over 26.
def
many?
(
&
block
)
size
=
block_given?
?
select
(
&
block
).
size
:
self
.
size
size
>
1
size
>
1
end
end
end
end
activesupport/test/core_ext/enumerable_test.rb
浏览文件 @
161ab28b
...
@@ -63,10 +63,15 @@ def test_index_by
...
@@ -63,10 +63,15 @@ def test_index_by
assert_equal
({
5
=>
payments
[
0
],
15
=>
payments
[
1
],
10
=>
payments
[
2
]
},
assert_equal
({
5
=>
payments
[
0
],
15
=>
payments
[
1
],
10
=>
payments
[
2
]
},
payments
.
index_by
{
|
p
|
p
.
price
})
payments
.
index_by
{
|
p
|
p
.
price
})
end
end
def
test_
several
def
test_
many
assert
!
[].
many?
assert
!
[].
many?
assert
!
[
1
].
many?
assert
!
[
1
].
many?
assert
[
1
,
2
].
many?
assert
[
1
,
2
].
many?
assert
!
[].
many?
{
|
x
|
x
>
1
}
assert
!
[
2
].
many?
{
|
x
|
x
>
1
}
assert
!
[
1
,
2
].
many?
{
|
x
|
x
>
1
}
assert
[
1
,
2
,
2
].
many?
{
|
x
|
x
>
1
}
end
end
end
end
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