diff options
Diffstat (limited to 'actionview/lib/action_view/base.rb')
| -rw-r--r-- | actionview/lib/action_view/base.rb | 19 |
1 files changed, 7 insertions, 12 deletions
diff --git a/actionview/lib/action_view/base.rb b/actionview/lib/action_view/base.rb index 900f96255e..3071a13655 100644 --- a/actionview/lib/action_view/base.rb +++ b/actionview/lib/action_view/base.rb @@ -10,8 +10,10 @@ require 'action_view/lookup_context' module ActionView #:nodoc: # = Action View Base # - # Action View templates can be written in several ways. If the template file has a <tt>.erb</tt> extension then it uses a mixture of ERB - # (included in Ruby) and HTML. If the template file has a <tt>.builder</tt> extension then Jim Weirich's Builder::XmlMarkup library is used. + # Action View templates can be written in several ways. + # If the template file has a <tt>.erb</tt> extension, then it uses the erubis[https://rubygems.org/gems/erubis] + # template system which can embed Ruby into an HTML document. + # If the template file has a <tt>.builder</tt> extension, then Jim Weirich's Builder::XmlMarkup library is used. # # == ERB # @@ -31,7 +33,9 @@ module ActionView #:nodoc: # # If you absolutely must write from within a function use +concat+. # - # <%- and -%> suppress leading and trailing whitespace, including the trailing newline, and can be used interchangeably with <% and %>. + # When on a line that only contains whitespaces except for the tag, <% %> suppress leading and trailing whitespace, + # including the trailing newline. <% %> and <%- -%> are the same. + # Note however that <%= %> and <%= -%> are different: only the latter removes trailing whitespaces. # # === Using sub templates # @@ -66,15 +70,6 @@ module ActionView #:nodoc: # Headline: <%= headline %> # First name: <%= person.first_name %> # - # If you need to find out whether a certain local variable has been assigned a value in a particular render call, - # you need to use the following pattern: - # - # <% if local_assigns.has_key? :headline %> - # Headline: <%= headline %> - # <% end %> - # - # Testing using <tt>defined? headline</tt> will not work. This is an implementation restriction. - # # === Template caching # # By default, Rails will compile each template to a method in order to render it. When you alter a template, |