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  • Rails:Populating Select boxes with model data

    @saikat.chakraborty
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    In model specific form we use select method to display a select box and populate it with model data.

    Example:

    #controller
@location = Location.new()

#view
<%= select(:location,:city_id,City.all.collect {|p| [ p.name, p.id ] }) %>
or
<%= f.select(:city_id,City.all.collect {|p| [ p.name, p.id ] }) %>

where f is the form object.

    select tag also takes optional arguments . They are :

    :multiple - When set to true we can select more than one option.

    :disabled - When set to true the select box will be disabled in the web page

    :include_blank - When set to true an empty option will be created

    :prompt - When a string is passed to this option it is displayed as option without any value in the web page.

    Populating Select boxes with model data Ruby Ruby on Rails
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