warn SOA#primary_ns not in domain's NSs

app/controllers/ns_controller.rb

@@ -35,6 +35,14 @@ class NsController < ApplicationController
     nested_singular_association? # || params[:parent_sti]
   end
   
+  def after_update_save(record)
+    domain = @record.domain
+    soa_record = domain.soa_record
+    unless domain.ns_records.any? {|ns_record| soa_record.primary_ns == ns_record.content}
+      flash.now[:warning] = "SOA record's primary NS is no longer among this domain's NS records"
+    end
+  end
+  
   def do_destroy
     super
     if successful? && nested_parent_record.ns_records.count == 0

app/controllers/soas_controller.rb

@@ -27,4 +27,10 @@ class SoasController < ApplicationController
     nested_singular_association? # || params[:parent_sti]
   end
   
+  def after_update_save(record)
+    unless @record.domain.ns_records.any? {|ns_record| @record.primary_ns == ns_record.content}
+      flash.now[:warning] = "SOA record's primary NS is no longer among this domain's NS records"
+    end
+  end
+  
 end

app/models/domain.rb

@@ -31,8 +31,7 @@ class Domain < ActiveRecord::Base
   validates :soa_record, :presence => {:unless => :slave?}
   validates_associated :soa_record #, :allow_nil => true
   validates :ns_records, :on => :create, :presence => true, :length => {
-    :minimum => 2, :maximum => 10,
-    :message => "must have be at least 2, at most 10"}
+    :minimum => 2, :maximum => 10, :message => "must have be at least 2, at most 10"}
   validates_associated :records
   
   def slave?; self.type == 'SLAVE' end