radhames brito wrote: > show the code where you are trying to access, ill see whats wrong with > it
Thanks @radhames. The main issue is how to make a call to the height() and width() methods in the model in this line in "show.html.erb": <canvas id="draw" height = "?????" width= "?????"> </canvas> This is my model"dicom.rb": class Dicom < ActiveRecord::Base has_attached_file :photo, :styles => { :original => ["100%", :jpg], } def height() uploaded_file = photo.queued_for_write[:original] dimensions = Paperclip::Geometry.from_file(uploaded_file) return dimensions.height end def width() uploaded_file = photo.queued_for_write[:original] dimensions = Paperclip::Geometry.from_file(uploaded_file) return dimensions.width end end And, this is my "show.html.erb": <%= javascript_include_tag "coordinate" %> <canvas id="draw" height = "" width= ""> </canvas> <p id="notice"><%= notice %></p> <p> <b> Name </b> <%= @dicom.name %> </p> <p> <b> Image </b> </p> <div id="image_element" style="display: none;"> <p> <%= image_tag @dicom.photo.url , :id => 'dicom_image' %> </p> </div> <%= update_page_tag do |page| page << "drawImg();" end %> <%= update_page_tag do |page| page << "drawLine();" end %> <%= link_to 'Edit', edit_dicom_path(@dicom) %> <%= link_to 'Back', dicoms_path %> Thanks a lot. -- Posted via http://www.ruby-forum.com/. -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-t...@googlegroups.com. To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.