class ActiveRecord::Migration::CheckPending

Parent:: Object

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

Public Class Methods

new(app) Show source

# File activerecord/lib/active_record/migration.rb, line 540
def initialize(app)
  @app = app
  @last_check = 0
end

Public Instance Methods

call(env) Show source

# File activerecord/lib/active_record/migration.rb, line 545
def call(env)
  if connection.supports_migrations?
    mtime = ActiveRecord::Migrator.last_migration.mtime.to_i
    if @last_check < mtime
      ActiveRecord::Migration.check_pending!(connection)
      @last_check = mtime
    end
  end
  @app.call(env)
end