In Rails 3: Can a template image be associated with the view that's being displayed? -

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sorry, i'm new @ rails i'll try specific can be.

in template have large "header" style image. swap image out image associated view being displayed. maybe can done using helper? don't know begin this.

i know make bunch of template pages , load each of them desired view, think thats lot of repeated lines of code load when want swap 1 image. have idea?

there few options depending on needs. first thing comes head create couple of helper methods. 1 call custom views , 1 call global layout.

for example, create file app/helpers/layout_helper.rb

module layouthelper   def header_image_tag     @header_image ||= 'whatever-my-default-image-is.png'     image_tag @header_image   end    def header_image(image_path)     @header_image = image_path   end end

in layout file... e.g app/views/application.html.erb. like:

<div id='banner'>   <%= header_image_tag %> </div>

in individual view files don't want default image:

<% header_image 'other-image.png' %>

that should started. may want allow header_image_tag take options pass onto image_tag, or set defaults can overridden.

the other thing can take advantage of content_for , yield blocks.

example... in custom views, put @ top of view:

<% content_for :banner %>   <%= image_tag 'blah.png' %> <% end %>

and in layout

<div id='banner'>   <%= yield :banner || image_tag 'my-default.png' %> </div>

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