lib/imigrate.rb in imigrate-0.9.1 vs lib/imigrate.rb in imigrate-0.9.2

@@ -1,9 +1,15 @@
 require_relative 'imigrate/railtie'
 require_relative 'generators/imigrate'
 
 module Imigrate
-  mattr_accessor :env_prefix
+  mattr_reader :env_prefix
   mattr_accessor :activated
+
+  def self.env_prefix=(number)
+    return if number.blank?
+    raise 'env_prefix must be a number' unless number.is_a?(Integer)
+    @@env_prefix = number
+  end
   SCHEMA_MIGRATIONS_TABLE_NAME = 'data_migrations'
   MIGRATION_PATH = 'db/data'
 end