diff options
Diffstat (limited to 'activerecord/lib/active_record/migration.rb')
-rw-r--r-- | activerecord/lib/active_record/migration.rb | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/migration.rb b/activerecord/lib/active_record/migration.rb index ac4f53c774..a0169203b0 100644 --- a/activerecord/lib/active_record/migration.rb +++ b/activerecord/lib/active_record/migration.rb @@ -32,6 +32,12 @@ module ActiveRecord end end + class PendingMigrationError < ActiveRecordError#:nodoc: + def initialize + super("Migrations are pending run 'bundle exec rake db:migrate RAILS_ENV=#{ENV['RAILS_ENV']}' to resolve the issue") + end + end + # = Active Record Migrations # # Migrations can manage the evolution of a schema used by several physical @@ -326,10 +332,28 @@ module ActiveRecord class Migration autoload :CommandRecorder, 'active_record/migration/command_recorder' + + # This class is used to verify that all migrations have been run before + # loading a web page if config.active_record.migration_error is set to :page_load + class CheckPending + def initialize(app) + @app = app + end + + def call(env) + ActiveRecord::Migration.check_pending! + status, headers, body = @app.call(env) + end + end + class << self attr_accessor :delegate # :nodoc: end + def self.check_pending! + raise ActiveRecord::PendingMigrationError if ActiveRecord::Migrator::needs_migrations? + end + def self.method_missing(name, *args, &block) # :nodoc: (delegate || superclass.delegate).send(name, *args, &block) end @@ -605,6 +629,14 @@ module ActiveRecord end end + def needs_migrations? + current_version < last_version + end + + def last_version + migrations(migrations_paths).last.try(:version)||0 + end + def proper_table_name(name) # Use the Active Record objects own table_name, or pre/suffix from ActiveRecord::Base if name is a symbol/string name.table_name rescue "#{ActiveRecord::Base.table_name_prefix}#{name}#{ActiveRecord::Base.table_name_suffix}" |