If this is only in the show method - one record, I assume, why not
pass the height and width as instance variables in the method call
which are then available in the view?
On Sep 19, 10:11 am, Abder-Rahman Ali <li...@ruby-forum.com> wrote:
> 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 viahttp://www.ruby-forum.com/.
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