method

image_tag

v1.0.0 - Show latest stable - Class: ActionView::Helpers::AssetTagHelper

image_tag(source, options = {})

public

Returns an image tag converting the options into html options on the tag, but with these special cases:

:alt - If no alt text is given, the file name part of the src is used (capitalized and without the extension)
:size - Supplied as "XxY", so "30x45" becomes width="30" and height="45"

The src can be supplied as a…

full path, like "/my_images/image.gif"
file name, like "rss.gif", that gets expanded to "/images/rss.gif"
file name without extension, like "logo", that gets expanded to "/images/logo.png"

# File actionpack/lib/action_view/helpers/asset_tag_helper.rb, line 133
      def image_tag(source, options = {})
        options.symbolize_keys
                
        options[:src] = image_path(source)
        options[:alt] ||= File.basename(options[:src], '.*').split('.').first.capitalize
        
        if options[:size]
          options[:width], options[:height] = options[:size].split("x")
          options.delete :size
        end

        tag("img", options)
      end

3Notes

watch out for urls with &

grosser · Jul 10, 2008

image_tag('x.com/aaa?a=1&b=2') = x.com/aaa?a=1&b=2

By images's sub dirctionary to img tag

RobinWu · Oct 31, 2008

=== image_tag("icons/edit.png") # => edit

Specify your own template

Ramon · Mar 10, 2010

You can specify you own template this way:

def notice
...
@template = "some_other_name.html.erb"
end

image_tag

3Notes

watch out for urls with &

By images's sub dirctionary to img tag

Specify your own template

Related methods