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Contents
# frozen_string_literal: true
module EacRailsUtils
module CommonFormHelper
class FormBuilder
module AssociationSelectField
def association_select_field(field_name, options = {})
options = options.dup
methods = extract_methods(options)
select_options = extract_select_options(options)
collection = extract_association_key(field_name, options, :collection, :all)
foreign_key = extract_association_key(field_name, options, :foreign_key,
:association_foreign_key)
field(field_name, options) do
form.collection_select(foreign_key, collection, methods[:value], methods[:text],
select_options, class: 'form-control')
end
end
private
def extract_methods(options)
{ value: options.delete(:value_method) || :id, text:
options.delete(:text_method) || :to_s }
end
def extract_select_options(options)
options.extract!(:prompt, :include_blank)
end
def extract_association_key(field_name, options, key, method)
return options.delete(key) if options.key?(key)
if model_instance.class.respond_to?(:reflect_on_association)
return model_instance.class.reflect_on_association(field_name).send(method)
end
raise "#{model_instance.class} não possui um método \"reflect_on_association\". " \
"Defina explicitamente a opção :#{key}"
end
end
end
end
end
Version data entries
18 entries across 18 versions & 1 rubygems