What is the best way to include a Bootstrap CSS class in a select field using a loop within a Rails application?

Question

What is the best way to include a Bootstrap CSS class in a select field using a loop within a Rails application?

Currently, I am dealing with a select field setup in the following way:

<%= f.select(:avaliador_id) do %>
  <% @usuarios_array.each do |u| %>
    <%= content_tag(:option, u.first, value: u.last) %>
  <% end %>
<% end %>

My query is related to adding a css class (specifically Bootstrap's form-control) to this select menu. Can anyone guide me on how to achieve this?

Your help is much appreciated.

Please note that I came across a solution for a similar question, which doesn't involve an each loop. However, in my scenario, I have a loop and struggle to apply the css class as intended.

html css ruby-on-rails twitter-bootstrap loops

Answer 1

Answer №1

After reviewing the documentation at: http://api.rubyonrails.org/classes/ActionView/Helpers/FormOptionsHelper.html#method-i-select The method can be implemented as shown below: select(object, method, choices = nil, options = {}, html_options = {}, &block) Given that a block is being passed and the object argument is f variable, the following code snippet should be effective:

<%= f.select(:avaliador_id, {}, {class: "form-control"}) do %>
  <% @usuarios_array.each do |u| %>
    <%= content_tag(:option, u.first, value: u.last) %>
  <% end %>
<% end %>

There might be a need to consider the choices argument, so an alternative approach could be:

<%= f.select(:avaliador_id, nil, {}, {class: "form-control"}) do %>
  <% @usuarios_array.each do |u| %>
    <%= content_tag(:option, u.first, value: u.last) %>
  <% end %>
<% end %>

Answer 2

After reviewing the documentation at: http://api.rubyonrails.org/classes/ActionView/Helpers/FormOptionsHelper.html#method-i-select The method can be implemented as shown below: select(object, method, choices = nil, options = {}, html_options = {}, &block) Given that a block is being passed and the object argument is f variable, the following code snippet should be effective:

<%= f.select(:avaliador_id, {}, {class: "form-control"}) do %>
  <% @usuarios_array.each do |u| %>
    <%= content_tag(:option, u.first, value: u.last) %>
  <% end %>
<% end %>

There might be a need to consider the choices argument, so an alternative approach could be:

<%= f.select(:avaliador_id, nil, {}, {class: "form-control"}) do %>
  <% @usuarios_array.each do |u| %>
    <%= content_tag(:option, u.first, value: u.last) %>
  <% end %>
<% end %>

Answer 3

Answer №2

A better alternative to a loop is:

<%= f.select(:user_id, options_for_select(@users_array)), {}, {class: "custom-select"}) %>

Answer 4

A better alternative to a loop is:

<%= f.select(:user_id, options_for_select(@users_array)), {}, {class: "custom-select"}) %>

What is the best way to include a Bootstrap CSS class in a select field using a loop within a Rails application?

Answer №1

Answer №2

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