I use habtm and a mulitline select to select which publications a
journalist works on.
class Journalist < ActiveRecord::Base
has_and_belongs_to_many :publications
end
AND
class Publication < ActiveRecord::Base
has_and_belongs_to_many :journalists
end
When I make changes in the select, only the first selected item gets a
record in the habtm table:
>From the log:
Parameters: {"commit"=>"Update Journalist",
"journalist"=>{"publication_ids"=>["3,5,4,1"], },
"authenticity_token"=>"a7Lws3tWNS+FczclJEYuu4EusVINUsuy6rwLVagMdLk=",
"utf8"=>"✓", "id"=>"7"}
Then some rows down(!?):
INSERT INTO "journalists_publications" ("publication_id",
"journalist_id") VALUES (3, 7)
So, what happened to (5,7), (4,7) and (1,7)????
Migration:
def self.up
create_table :journalists_publications, :id => false do |t|
t.references :journalist, :publication
end
add_index :journalists_publications, :journalist_id
add_index :journalists_publications, :publication_id
end
Form:
<%= form_for(@publication, :remote => true) do |f| %>
<%= f.collection_select(:journalist_ids,
Journalist.limit(20).order('id'), :id, :name, {}, {:multiple => true})
%>
<% end %>
Controller:
@journalist = Journalist.find(params[:id])
if @journalist.update_attributes(params[:journalist])
...
Does anyone have a clue?
Rails 3.0.5
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