Select from hash

gistfile1.txt

# select_from_hash location_size 
	def select_from_hash(object, name, args, options={}) 
		selected = []
		include_blank = false
		
		if (!options[:selected].nil?)
			selected = options[:selected]
		end
		
		if (!options[:include_blank].nil?)
			include_blank = options[:include_blank]
		end
		
		select = "<select id=\"#{object}_#{name}\" name=\"#{object}[#{name}]\">" 
		
		if include_blank == true
			select += %(<option value=""></option>)
		end
		
		args.each do |arg|
			  is_selected = selected.include?(arg[:id])
			  s_selected = is_selected ? "selected='selected'" : ""
			  select += %(<option value="#{arg[:id]}" #{s_selected}>#{arg[:value]}</option>) 
		end 
		
		select += "</select>" 
	end


# usage in html
<%= raw select_from_hash :location, :size ,[
			{ :id => 0, :value => :little},
			{ :id => 1, :value => :visible},
			{ :id => 2, :value => :landmark},
			{ :id => 3, :value => :supermark}
		], { :selected => [:little], :include_blank => true } %>