fix #120 CNAME record length restriction

app/models/cname.rb

@@ -9,7 +9,7 @@
 #
 class CNAME < Record
   validates :name, :hostname =>  {:allow_underscore => true, :allow_wildcard_hostname => true}
-  validates :content, :presence => true, :length => { :maximum => 1024 }, :hostname2 => true
+  validates :content, :presence => true, :length => { :maximum => 20000 }, :hostname2 => true
 
 end
 

db/migrate/20130918144521_change_records_content_length.rb

@@ -0,0 +1,5 @@
+class ChangeRecordsContentLength < ActiveRecord::Migration
+  def change
+    change_column :records, :content, :string, limit: 20000
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20130824171517) do
+ActiveRecord::Schema.define(version: 20130918144521) do
 
   create_table "admins", force: true do |t|
     t.string   "email",                  default: "",    null: false
@@ -98,7 +98,7 @@ ActiveRecord::Schema.define(version: 20130824171517) do
     t.integer  "domain_id"
     t.string   "name"
     t.string   "type",                 limit: 10
-    t.string   "content"
+    t.string   "content",              limit: 20000
     t.integer  "ttl"
     t.integer  "prio"
     t.integer  "change_date"