Add value to select in rails

Question

i have a select that take values from database.

<%= select_tag :location, options_from_collection_for_select(Country.all, :id, :country_name), { :class => 'selectpicker' } %>

So i get all countries from database. How i can do for add a custom value(for example Any, with value 0), to this select list taken from database ? For example now i have:

<select>
<option value="UK">UK</option>
</select>

and i want get this:

<select>
<option value="0">Any</option>
<option value="UK">UK</option>
</select>

Thanks.

vee · Accepted Answer · 2013-08-25 11:08:35Z

2

You can use the either prompt or include_blank options (FormOptionsHelper) as follows:

<%= select_tag :location, options_from_collection_for_select(Country.all, :id, :country_name), :prompt => 'Any', :class => 'selectpicker' %>

edited Aug 25, 2013 at 11:08

answered Aug 25, 2013 at 10:45

vee

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5 Comments

Richard Over a year ago

It say: wrong number of arguments (4 for 3), anyway i don't want only show "Any", but also assign a value to this prompt...example Any have value 0.

vee Over a year ago

@Richard, please see the updated answer that fixes the wrong number of arguments. When I tested this I was using f.select which eventually led to copy/paste error. Why do you need this value to be zero, do you want it to be stored in db?

Richard Over a year ago

No, i don't store in db...but i want know if the user have choice Any(it's a search form).

Richard Over a year ago

Now give me in params: "location"=>"", (when i choice any).

vee Over a year ago

You probably want to add presence validation on that field?

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