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class ActiveRecord::DatabaseConnectionError

Raised when connection to the database could not been established because it was not able to connect to the host or when the authorization failed.

Inherits From

Public class methods

hostname_error(hostname)

Source code GitHub 
# File activerecord/lib/active_record/errors.rb, line 108
      def hostname_error(hostname)
        DatabaseConnectionError.new(<<~MSG)
          There is an issue connecting with your hostname: #{hostname}.\n
          Please check your database configuration and ensure there is a valid connection to your database.
        MSG
      end

new(message = nil)

Source code GitHub 
# File activerecord/lib/active_record/errors.rb, line 103
def initialize(message = nil)
  super(message || "Database connection error")
end

username_error(username)

Source code GitHub 
# File activerecord/lib/active_record/errors.rb, line 115
      def username_error(username)
        DatabaseConnectionError.new(<<~MSG)
          There is an issue connecting to your database with your username/password, username: #{username}.\n
          Please check your database configuration to ensure the username/password are valid.
        MSG
      end

Definition files