[Rails] Re: Re: Re: How to access a model method from within a view?

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.
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