Edit paper page should allow to select 5 authors from 5 separate drop downs

[swt2public]

Scenario

Given a paper
When a user visits the paper's edit page
Then it should have a select box for the first author

Hints

Create a <label> for each <select> and set the for attribute of the label to the id of the select. For example

f.label "Author 1", for: "paper_author_id_1"
f.collection_select :author_ids, authors, :id, :name, {selected: @paper.author_ids[1], include_blank: '(none)'}, {name: "paper[author_ids][]", id: "paper_author_id_1"}

See collection_select

Error

Expected to find field "author 1" but there were no matches

Estimated progress: 92% complete