ruby-on-rails - Rails: render a form with predefined values

Question

I would like to modify default method for rendering form (produced automatically using scaffold) so that it would fill certain field with a predefined value passed in a parameter.

I imagine the view line responsible for form rendering could look like this

<% render 'form' arg %>

Then I would like to be able to access arg in _from.html.erb so that I could insert it in one of the fields.

Answer 1

<% render 'form', :arg => @arg %>

然后在您的部分中，您可以访问 value arg。

向下滚动到Layouts and Rendering Guide中的“3.4.4 传递局部变量” 。