collection can't handle symbols

[aaronchi]

When specifying a collection to select, if the collection is an array of symbols, the form will generate ids for the symbol instead of using the string:

<%= f.input :gender, :as => :select, :collection => [:male, :female], :include_blank => false %>

<select name="user[gender]" id="user_gender" class="select optional">
    <option value="1637780">male</option>
    <option value="1637876">female</option>
</select>

[carlosantoniodasilva]

Could you provide a patch with tests for this?
You're probably gonna have to change here just to accept symbols:
http://github.com/plataformatec/simple_form/blob/master/lib/simple_form/inputs/collection_input.rb#L49
Thanks.

[carlosantoniodasilva]

Allow collection input to accept a collection of symbols, closed by cf99793