Exception: ActiveRecord::UnknownPrimaryKey

Inherits:

ActiveRecordError

• Object
• StandardError
• ActiveRecordError
• ActiveRecord::UnknownPrimaryKey

Defined in:

activerecord/lib/active_record/errors.rb

Overview

Raised when a primary key is needed, but there is not one specified in the schema or model.

Instance Attribute Summary

• #model ⇒ Object readonly

  Returns the value of attribute model.

Instance Method Summary

• #initialize(model) ⇒ UnknownPrimaryKey constructor

  A new instance of UnknownPrimaryKey.

• #message ⇒ Object

Constructor Details

#initialize(model) ⇒ UnknownPrimaryKey

Returns a new instance of UnknownPrimaryKey.

# File 'activerecord/lib/active_record/errors.rb', line 177

def initialize(model)
  @model = model
end

Instance Attribute Details

#model ⇒ Object (readonly)

Returns the value of attribute model

# File 'activerecord/lib/active_record/errors.rb', line 175

def model
  @model
end

Instance Method Details

#message ⇒ Object

# File 'activerecord/lib/active_record/errors.rb', line 181

def message
  "Unknown primary key for table #{model.table_name} in model #{model}."
end