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体验新版 GitCode,发现更多精彩内容 >>
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141d864e
编写于
8月 29, 2014
作者:
D
David Heinemeier Hansson
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电子邮件补丁
差异文件
Added yield to Object#presence
上级
7475b43c
变更
3
显示空白变更内容
内联
并排
Showing
3 changed file
with
23 addition
and
1 deletion
+23
-1
activesupport/CHANGELOG.md
activesupport/CHANGELOG.md
+6
-0
activesupport/lib/active_support/core_ext/object/blank.rb
activesupport/lib/active_support/core_ext/object/blank.rb
+12
-1
activesupport/test/core_ext/object/blank_test.rb
activesupport/test/core_ext/object/blank_test.rb
+5
-0
未找到文件。
activesupport/CHANGELOG.md
浏览文件 @
141d864e
*
Added yield to Object#presence, so you can do this:
person.presence { |p| p.name.first } || 'Nobody'
*DHH*
*
Fix the
`ActiveSupport::Duration#instance_of?`
method to return the right
*
Fix the
`ActiveSupport::Duration#instance_of?`
method to return the right
value with the class itself since it was previously delegated to the
value with the class itself since it was previously delegated to the
internal value.
internal value.
...
...
activesupport/lib/active_support/core_ext/object/blank.rb
浏览文件 @
141d864e
...
@@ -39,9 +39,20 @@ def present?
...
@@ -39,9 +39,20 @@ def present?
#
#
# region = params[:state].presence || params[:country].presence || 'US'
# region = params[:state].presence || params[:country].presence || 'US'
#
#
# You can also use this with a block that will be yielded if the object is present
# and the result of that block will then be returned
#
# person.presence { |p| p.name.first } || 'Nobody'
#
# @return [Object]
# @return [Object]
def
presence
def
presence
self
if
present?
if
present?
if
block_given?
yield
self
else
self
end
end
end
end
end
end
...
...
activesupport/test/core_ext/object/blank_test.rb
浏览文件 @
141d864e
...
@@ -33,4 +33,9 @@ def test_presence
...
@@ -33,4 +33,9 @@ def test_presence
BLANK
.
each
{
|
v
|
assert_equal
nil
,
v
.
presence
,
"
#{
v
.
inspect
}
.presence should return nil"
}
BLANK
.
each
{
|
v
|
assert_equal
nil
,
v
.
presence
,
"
#{
v
.
inspect
}
.presence should return nil"
}
NOT
.
each
{
|
v
|
assert_equal
v
,
v
.
presence
,
"
#{
v
.
inspect
}
.presence should return self"
}
NOT
.
each
{
|
v
|
assert_equal
v
,
v
.
presence
,
"
#{
v
.
inspect
}
.presence should return self"
}
end
end
def
test_presence_with_a_block
assert_equal
"SALLY"
,
"sally"
.
presence
(
&
:upcase
)
||
"Nobody"
assert_equal
"Nobody"
,
nil
.
presence
(
&
:upcase
)
||
"Nobody"
end
end
end
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