Rails help looping trough has one and belongs to association -

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this kategori controller show action:

  def show     @kategori = kategori.find(params[:id])     @konkurrancer = @kategori.konkurrancer      respond_to |format|       format.html # show.html.erb       format.xml  { render :xml => @kategori }     end   end

this kategori view show file:

<% @konkurrancer.each |vind| %>       <td><%= vind.name %></td>       <td>4 ud af 5</td>       <td><%= number_to_currency(vind.vaerdi, :unit => "dkk", :separator => ".", :delimiter => ".", :format => "%n %u", :precision => 0) %></td>       <td>2 min</td>       <td>nyhedsbrev</td>       <td><%= vind.udtraekkes.strftime("%d %b") %></td>    </tr> <% end %>

my kategori model:

class kategori < activerecord::base has_one :konkurrancer end

my konkurrancer model:

class konkurrancer < activerecord::base belongs_to :kategori end

i want show of konkurrancer have association kategori model

with code following error: nomethoderror in kategoris#show

showing c:/rails/konkurranceportalen/app/views/kategoris/show.html.erb line #12 raised:

undefined method `each' "#":konkurrancer

the problem trying loop on has_one association. has_one means - has one, can't call each on because there one. can 1 of following things solve problem in code:

use has_many association:

class kategori < activerecord::base   has_many :konkurrancers end

use has_one association , modify view:

<tr>   <td><%= @konkurrancer.name %></td>   <td>4 ud af 5</td>   <td><%= number_to_currency(@konkurrancer.vaerdi, :unit => "dkk", :separator => ".", :delimiter => ".", :format => "%n %u", :precision => 0) %></td>   <td>2 min</td>   <td>nyhedsbrev</td>   <td><%= @konkurrancer.udtraekkes.strftime("%d %b") %></td> </tr>

which 1 use depends on data model. if kategori have many konkurrancers use first example. if kategori has 1 konkurrancer, use second example. both valid.


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