I think you need to add :tag_attributes to attr_accessible in your model –
would this fix the problem?
Lasse
2010/2/14 Greg Ma <li...@ruby-forum.com>
> Hi,
> I added a textarea to my edit student form, to be able to add tags to
> this student. I did the simple code below, and this is the error i get.
> I can't see what i did wrong...
>
> #Error message
> Processing StudentsController#update (for 127.0.0.1 at 2010-02-14
> 10:13:22) [PUT]
> Parameters: {"commit"=>"Submit",
> "authenticity_token"=>"PNvzBi6Ro1XJg0c6CfgKsEw+wfg6DwZfnV2FUpRgqPs=",
> "id"=>"1", "student"=>{"full_name"=>"Gregory ", "cb_id"=>"68",
> "tag_attributes"=>"greg,toto", "description"=>"voila une jolie
> description"}}
> Student Columns (12.8ms) SHOW FIELDS FROM `students`
> Student Load (0.3ms) SELECT * FROM `students` WHERE (`students`.`id`
> = 1)
> WARNING: Can't mass-assign these protected attributes: tag_attributes
>
>
> #Html form
> <% form_for @student do |f| %>
> <%= f.error_messages %>
> <p>
> <%= f.label :cb_id %><br />
> <%= f.text_field :cb_id %>
> </p>
> <p>
> <%= f.label :full_name %><br />
> <%= f.text_field :full_name %>
> </p>
> <p>
> <%= f.label :description%><br />
> <%= f.text_area :description %>
> </p>
> <p>
> <%= text_area_tag "student[tag_attributes]" %>
>
> <p><%= f.submit "Submit" %></p>
> <% end %>
> #END
>
>
> #Student Class
> class Student < ActiveRecord::Base
> has_and_belongs_to_many :data_files
> has_and_belongs_to_many :tags
>
> attr_accessible :cb_id, :full_name, :description
>
> validates_uniqueness_of :cb_id
>
> def tag_attributes=(tags)
> splits = tags.split(',')
> splits.each do |tag|
> Tag.build(tag)
> end
> end
> end
> #END
>
> Thanks for your help
> Greg
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> Posted via http://www.ruby-forum.com/.
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