Newbea Selection question

least could somebody tell me where is my mistake.

controller

@site_id="id"+current_hierarchy.site_id.to_s
@get_config=YAML.load(File.open("#{PATH_IM}/config/template.yml"))
@get_config == Hash
@merge==Hash
@merge==@get_config[@site_id]

view
<%
            templateOptions = ""
            @merge.each do |key,value|
                templateOptions = templateOptions + "<option
value=#{key}>#{value}</option>"
            end
            %>

ok
this one will be more clear.
I have a template.yml file, like this
template:

  templatename1: template_of_roster
  templatename2: template_of_roster1
  templatename3: template_of_roster2

template1:

  templatename1: template_of_roster32
  templatename2: template_of_roster143
  templatename3: template_of_roster2423

I want to use yaml keys and values in my selection. like,

@get_config=YAML.load(File.open("#{PATH_IM}/config/template.yml"))
@get_config == Hash

<select id="templates">
    <option
value="<%=@get_config[template].keys%>"><%=@get_config[template].values%></option>

  </select>

this one is not my problem actually, I can do it, my problem is

I have two hashes one is

@hash1==Hash
@hash1=@get_config[template]

other one is

@hash2==Hash
@hash2=@get_config[template1]

I want to merge these two hashes in one and create selection like above.