Facet Checked

facet_test.rb

class Facet
  def checked_one_liner?(field,value,params)
    params['f'] && params['f'][field] && params['f'][field].include?(value)
  end

  def checked?(field,value,params)
    params.has_key?('f') && params['f'].has_key?(field) && params['f'][field].include?(value)
  end
end

params = {"f"=>{"unit_sim"=>["Library Digital Collections"]}, "q"=>"fish", "spellcheck.q"=>"fish", "utf8"=>"✓", "action"=>"index", "controller"=>"catalog"}
params_without_f = {"g"=>{"unit_sim"=>["Library Digital Collections"]}, "q"=>"fish", "spellcheck.q"=>"fish", "utf8"=>"✓", "action"=>"index", "controller"=>"catalog"}

f = Facet.new

puts "Using checked?"
puts f.checked?('unit_sim','Library Digital Collections',params)
puts f.checked?('unit_sim','Research Collections',params)
puts f.checked?('unit_sim','',params)
puts f.checked?('unit_sim',nil,params)
puts f.checked?('collection_sim','Library Digital Collections',params)
puts f.checked?('collection_sim','Library Digital Collections',params_without_f)
puts f.checked?('unit_sim','Library Digital Collections',params_without_f)

puts "\nUsing checked_one_liner?"
puts f.checked_one_liner?('unit_sim','Library Digital Collections',params)
puts f.checked_one_liner?('unit_sim','Research Collections',params)
puts f.checked_one_liner?('unit_sim','',params)
puts f.checked_one_liner?('unit_sim',nil,params)
# none of these return false
puts f.checked_one_liner?('collection_sim','Library Digital Collections',params)
puts f.checked_one_liner?('collection_sim','Library Digital Collections',params_without_f)
puts f.checked_one_liner?('unit_sim','Library Digital Collections',params_without_f)

output

$ ruby facet.rb 
Using checked?
true
false
false
false
false
false
false

Using checked_one_liner?
true
false
false
false