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author | Jacob Mattingley <jem@ubalo.com> | 2011-08-15 16:00:53 -0700 |
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committer | Jacob Mattingley <jem@ubalo.com> | 2011-08-15 16:00:53 -0700 |
commit | 583d7c15c301f15f1e997a06e15b55a2e7bf794f (patch) | |
tree | 38a288f866ecef1edc628ab7904f5ca5f67d3f97 /railties/guides | |
parent | f7626ea38ebf1a6efdd8b059204aa2d22e096f39 (diff) | |
download | rails-583d7c15c301f15f1e997a06e15b55a2e7bf794f.tar.gz rails-583d7c15c301f15f1e997a06e15b55a2e7bf794f.tar.bz2 rails-583d7c15c301f15f1e997a06e15b55a2e7bf794f.zip |
Fixed mistakes in layouts/rendering guide about yield
yield(:unspecified_block) actually returns true even if :unspecified_block never
exists. This means you can't use the form yield(:unspecified_block) or yield.
Diffstat (limited to 'railties/guides')
-rw-r--r-- | railties/guides/source/layouts_and_rendering.textile | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/railties/guides/source/layouts_and_rendering.textile b/railties/guides/source/layouts_and_rendering.textile index 57485e8986..87ba8ab82d 100644 --- a/railties/guides/source/layouts_and_rendering.textile +++ b/railties/guides/source/layouts_and_rendering.textile @@ -1179,14 +1179,14 @@ On pages generated by +NewsController+, you want to hide the top menu and add a <% end %> <% content_for :content do %> <div id="right_menu">Right menu items here</div> - <%= yield(:news_content) or yield %> + <%= content_for?(:news_content) ? yield(:news_content) : yield %> <% end %> <%= render :template => 'layouts/application' %> </erb> That's it. The News views will use the new layout, hiding the top menu and adding a new right menu inside the "content" div. -There are several ways of getting similar results with different sub-templating schemes using this technique. Note that there is no limit in nesting levels. One can use the +ActionView::render+ method via +render :template => 'layouts/news'+ to base a new layout on the News layout. If you are sure you will not subtemplate the +News+ layout, you can replace the +yield(:news_content) or yield+ with simply +yield+. +There are several ways of getting similar results with different sub-templating schemes using this technique. Note that there is no limit in nesting levels. One can use the +ActionView::render+ method via +render :template => 'layouts/news'+ to base a new layout on the News layout. If you are sure you will not subtemplate the +News+ layout, you can replace the +content_for?(:news_content) ? yield(:news_content) : yield+ with simply +yield+. h3. Changelog |