text: var keystone = require("keystone");
  var Types = keystone.Field.Types;
  
  var Source = new keystone.List("Source", {
  	map: { name: "title" },
  	nodelete: true
  });
  
  Source.add({
  	title: { type: String, required: true, initial: true, label: "Source name" },
  	oldEPiServerId: {
  		label: "Old EPiServer ID",
  		type: Types.Number,
  		required: false
  	}
  });
  
  Source.relationship({
  	ref: "Item",
  	path: "items",
  	refPath: "source"
  });
  
  Source.defaultColumns = "title";
  
  Source.register();
  