Exception: ActiveRecord::NoDatabaseError

Inherits:

StatementInvalid

• Object
• StandardError
• ActiveRecordError
• AdapterError
• StatementInvalid
• ActiveRecord::NoDatabaseError

Includes:

ActiveSupport::ActionableError

Defined in:

activerecord/lib/active_record/errors.rb

Overview

Raised when a given database does not exist.

Instance Attribute Summary

Attributes inherited from StatementInvalid

#binds, #sql

Attributes inherited from AdapterError

#connection_pool

Class Method Summary

• .db_error(db_name) ⇒ Object

Instance Method Summary

• #initialize(message = nil, connection_pool: nil) ⇒ NoDatabaseError constructor

  A new instance of NoDatabaseError.

Methods included from ActiveSupport::ActionableError

actions, dispatch

Methods included from ActiveSupport::Concern

#append_features, #class_methods, extended, #included, #prepend_features, #prepended

Methods inherited from StatementInvalid

#set_query

Constructor Details

#initialize(message = nil, connection_pool: nil) ⇒ NoDatabaseError

Returns a new instance of NoDatabaseError.

# File 'activerecord/lib/active_record/errors.rb', line 334

def initialize(message = nil, connection_pool: nil)
  super(message || "Database not found", connection_pool: connection_pool)
end

Class Method Details

.db_error(db_name) ⇒ Object

# File 'activerecord/lib/active_record/errors.rb', line 339

def db_error(db_name)
  NoDatabaseError.new(<<~MSG)
    Database not found: #{db_name}. Available database configurations can be found in config/database.yml.

    To resolve this error:

    - Create the database by running:

        bin/rails db:create

    - Verify that config/database.yml contains the correct database name.
  MSG
end