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Merge pull request #2799 from tomstuart/3-1-stable

Never return stored content from content_for when a block is given
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spastorino committed Sep 5, 2011
2 parents 0b7a1f8 + f49faeb commit a2baf03d8ac3468348515c904a9ef15b003d3ac5
@@ -134,9 +134,9 @@ def capture(*args)
# WARNING: content_for is ignored in caches. So you shouldn't use it
# for elements that will be fragment cached.
def content_for(name, content = nil, &block)
- content = capture(&block) if block_given?
- if content
- @view_flow.append(name, content)
+ if content || block_given?
+ content = capture(&block) if block_given?
+ @view_flow.append(name, content) if content
nil
else
@view_flow.get(name)
@@ -46,6 +46,42 @@ def test_capture_used_for_read
assert_equal "bar", content_for(:bar)
end
+ def test_content_for_with_multiple_calls
+ assert ! content_for?(:title)
+ content_for :title, 'foo'
+ content_for :title, 'bar'
+ assert_equal 'foobar', content_for(:title)
+ end
+
+ def test_content_for_with_block
+ assert ! content_for?(:title)
+ content_for :title do
+ output_buffer << 'foo'
+ output_buffer << 'bar'
+ nil
+ end
+ assert_equal 'foobar', content_for(:title)
+ end
+
+ def test_content_for_with_whitespace_block
+ assert ! content_for?(:title)
+ content_for :title, 'foo'
+ content_for :title do
+ output_buffer << " \n "
+ nil
+ end
+ content_for :title, 'bar'
+ assert_equal 'foobar', content_for(:title)
+ end
+
+ def test_content_for_returns_nil_when_writing
+ assert ! content_for?(:title)
+ assert_equal nil, content_for(:title, 'foo')
+ assert_equal nil, content_for(:title) { output_buffer << 'bar'; nil }
+ assert_equal nil, content_for(:title) { output_buffer << " \n "; nil }
+ assert_equal 'foobar', content_for(:title)
+ end
+
def test_content_for_question_mark
assert ! content_for?(:title)
content_for :title, 'title'

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