Fixed bug with model orders as Strings rather than Arrays

lib/models.rb

@@ -24,7 +24,7 @@ class Ward
   property :name,           String,   :required => true
   property :constituency_id, Integer, :required => true
      
-  has n, :councilcandidates, :order => 'surname'
+  has n, :councilcandidates, :order => [ 'surname' ]
   belongs_to :constituency
   
   def self.slugify(name)
@@ -39,8 +39,8 @@ class Party
   property :id,             Serial
   property :name,           String,   :required => true
   
-  has n, :councilcandidates, :order => 'surname'
-  has n, :parliamentcandidates, :order => 'surname'
+  has n, :councilcandidates, :order => [ 'surname' ]
+  has n, :parliamentcandidates, :order => [ 'surname' ]
 end
 
 class Councilcandidate
@@ -80,7 +80,7 @@ class Constituency
   property :name,           String,   :required => true
   
   has n, :wards, :order => 'name'
-  has n, :parliamentcandidates, :order => 'surname'
+  has n, :parliamentcandidates, :order => [ 'surname' ]
 end
 
 DataMapper.setup(:default, ENV['DATABASE_URL'] || "sqlite3://#{Dir.pwd}/db.sqlite3")