ruby - Rails - Is it hacky to manually list my form options as strings within the select_tag helper? -

is hacky manually list form options strings within select_tag helper?

also, i'm wondering--how use selected value update database?

  <div class="form-group">     <%= f.label :sex %><br />     <%= select_tag(:sex_id, options_for_select(       [         ["not known", 0], ["male", 1], ["female", 2], ["not applicable", 3]       ]     )) %> 

this question outlines process of using enum in activerecord (rails 4.1+) mapping integers.

an attribute of type integer in database can declared in corresponding model (i assume user):

enum gender: [:not_known, :male, :female, :not_applicable] 

in view, may rely on fact system wants corresponding strings, not integers:

<%= f.input :gender, as: :select, collection: user.genders.keys %> 

or map them generate want: "human-readable names" or i18n keys:

<%= f.input :gender, as: :select,       collection: user.genders.keys.map { |w| [w.humanize, w] } %> <%= f.input :gender, as: :select,       collection: user.genders.keys.map { |w| [(t ".w"), w] } %>