Fixed bug in with new shared multiple suppliers feature.

app/controllers/suppliers_controller.rb

@@ -18,7 +18,7 @@ class SuppliersController < ApplicationController
   def new
     if params[:shared_supplier_id]
       shared_supplier =  SharedSupplier.find(params[:shared_supplier_id])
-      @supplier = shared_supplier.build_supplier(shared_supplier.autofill_attributes)
+      @supplier = shared_supplier.suppliers.new(shared_supplier.autofill_attributes)
     else
       @supplier = Supplier.new
     end

app/helpers/suppliers_helper.rb

@@ -0,0 +1,6 @@
+module SuppliersHelper
+
+  def associated_supplier_names(shared_supplier)
+    "(#{shared_supplier.suppliers.map(&:name).join(', ')})"
+  end
+end

app/views/suppliers/shared_suppliers.haml

@@ -22,9 +22,9 @@
         %td= shared_supplier.note
         %td= shared_supplier.delivery_days
         %td
-          - if shared_supplier.suppliers
+          - if shared_supplier.suppliers.any?
             %i.icon-ok
-            = '(' + shared_supplier.suppliers.map{|s| s.name}.join(', ') + ')'
-            = link_to "abonnieren", new_supplier_path(:shared_supplier_id => shared_supplier), class: 'btn'
+            = associated_supplier_names(shared_supplier)
+            = link_to "erneut abonnieren", new_supplier_path(:shared_supplier_id => shared_supplier), class: 'btn'
           - else
             = link_to "abonnieren", new_supplier_path(:shared_supplier_id => shared_supplier), class: 'btn'