[magick-users] RMagick Rails morph and save to database

[Victor Rosillo]

Hi;
I am using Ruby on Rails, I have uploaded 2 images in jpeg format to  
a database model called Imagen
via Rails using the acts_as_attachment plugin, I can generate  
thiumbs, display them, etc... so far so good...

Now, once uploaded to the database, I need to use this two images to  
generate a morph using RMagick
and have it's result as an animated "GIF" image; then I want to  
display it in a view.

This is what I have but it is not working, I would appreciate help in  
finishing this code:

In the controller I have this:

def create_preview

   imagenleft = Imagen.find(:first, :conditions  => ["parent_id = ?  
and thumbnail = 'normal'", 5])
   imagenright = Imagen.find(:first, :conditions  => ["parent_id = ?  
and thumbnail = 'normal'", 7])

   imagenleftdata = DbFile.find(imagenleft.db_file_id).data
   imagenrightdata = DbFile.find(imagenright.db_file_id).data
   @imagenes = [imagenleft, imagenright]

   i = Magick::ImageList.new

   i.push.from_blob(imagenleftdata).format = "GIF"
   i.push.from_blob(imagenrightdata).format = "GIF"

   morph = i.morph 8
   morph.delay = 12
   morph.iterations = 10000

   @imagenpreview = morph

end


This is what I have in the create_preview.rhtml view:

<h1>Show Morph: </h1>

<% @imagenes.each do |imagen| -%>
    Name: <%= link_to (imagen.filename, :action => 'show_photo', :id  
=> imagen) %> <br/>
   <img src="<%= url_for(:action => 'render_photo', :id => imagen.id)  
%>" />
<% end -%>


<img src="<%= @imagenpreviewtest %>" />