Module: HasImage::ViewHelpers

Defined in:
lib/has_image/view_helpers.rb

Overview

Some helpers to make working with HasImage models in views a little easier.

Instance Method Summary collapse

Instance Method Details

#image_tag_for(object, options = {}) ⇒ Object

Wraps the image_tag helper from Rails. Instead of passing the path to an image, you can pass any object that uses HasImage. The options can include the name of one of your thumbnails, for example:

image_tag_for(@photo)
image_tag_for(@photo, :thumb => :square)

If your object uses fixed dimensions (i.e., “200x200” as opposed to “200x200>”), then the height and width properties will automatically be added to the resulting img tag unless you explicitly specify the size in the options.

All arguments other than :thumb will simply be passed along to the Rails image_tag helper without modification.

See also: HasImage::ModelInstanceMethods#public_path



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# File 'lib/has_image/view_helpers.rb', line 22

def image_tag_for(object, options = {})
  thumb = options.delete(:thumb)
  if !options[:size]
    if thumb
      size = object.class.thumbnails[thumb.to_sym]
      options[:size] = size if size =~ /\A[\d]*x[\d]*\Z/
    else
      size = object.class.has_image_options[:resize_to]
      options[:size] = size if size =~ /\A[\d]*x[\d]*\Z/
    end
  end
  image_tag(object.public_path(thumb), options)
end