Raised when connection to the database could not been established (for example when ActiveRecord::Base.connection= is given a nil object).

Methods

Class Public methods

new(message = nil, connection_pool: nil)

📝 Source code 
# File activerecord/lib/active_record/errors.rb, line 72
    def initialize(message = nil, connection_pool: nil)
      super(message, connection_pool: connection_pool)
    end
🔎 See on GitHub

Instance Public methods

set_pool(connection_pool)

📝 Source code 
# File activerecord/lib/active_record/errors.rb, line 76
    def set_pool(connection_pool)
      unless @connection_pool
        @connection_pool = connection_pool
      end

      self
    end
🔎 See on GitHub