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Improve description of :allow_destroy option for nested attributes in getting started guide

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Carlos Antonio da Silva 2012-01-15 14:30:23 -02:00
parent 04a05e5899
commit 2d76d1f475
1 changed files with 7 additions and 7 deletions
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14
railties/guides/source/getting_started.textile
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@ -447,11 +447,11 @@ start a web server on your development machine. You can do this by running:
$ rails server
</shell>
TIP: Compiling CoffeeScript to JavaScript requires a JavaScript runtime and
the absence of a runtime will give you an +execjs+ error. Usually Mac OS X
TIP: Compiling CoffeeScript to JavaScript requires a JavaScript runtime and
the absence of a runtime will give you an +execjs+ error. Usually Mac OS X
and Windows come with a JavaScript runtime installed. +therubyracer+ gem is
added commented to Gemfile for new apps and you can uncomment if you need it.
+therubyrhino+ is the recommended runtime for JRuby users and is added by default
+therubyrhino+ is the recommended runtime for JRuby users and is added by default
to Gemfile in apps generated under JRuby. You can investigate about all the
supported runtimes at "ExecJS":https://github.com/sstephenson/execjs#readme.
@ -1695,10 +1695,10 @@ class Post < ActiveRecord::Base
end
</ruby>
The +:allow_destroy+ option on the nested attribute declaration tells Rails to
display a "remove" checkbox on the view that you'll build shortly. The
+:reject_if+ option prevents saving new tags that do not have any attributes
filled in.
The +:allow_destroy+ option tells Rails to enable destroying tags through the
nested attributes (you'll handle that by displaying a "remove" checkbox on the
view that you'll build shortly). The +:reject_if+ option prevents saving new
tags that do not have any attributes filled in.
We will modify +views/posts/_form.html.erb+ to render a partial to make a tag: