未選擇默認值

Question

任何人都可以看到爲什麼在此選擇中未選擇「9:00」？

=f.fields_for :hours do |hours_form| 
    = hours_form.text_field :start_time # outputs "9:00" 

    =hours_form.select :start_time, possible_hours_stop() # outputs a select including one where value="9:00" 

不應該選擇「9:00」，因爲它的值是：start_time？

Answer 1

我想試試這個：

=hours_form.select :start_time, options_for_select(possible_hours_stop(), hours_form.object.start_time)