ActiveRecord::AttributeMethods::PrimaryKey::ClassMethods (original) (raw)

Methods

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Constants

ID_ATTRIBUTE_METHODS = %w(id id= id? id_before_type_cast id_was id_in_database id_for_database).to_set
PRIMARY_KEY_NOT_SET = BasicObject.new

Instance Public methods

Source: show | on GitHub

def dangerous_attribute_method?(method_name) super && !ID_ATTRIBUTE_METHODS.include?(method_name) end

Source: show | on GitHub

def instance_method_already_implemented?(method_name) super || primary_key && ID_ATTRIBUTE_METHODS.include?(method_name) end

Defines the primary key field – can be overridden in subclasses. Overwriting will negate any effect of the primary_key_prefix_type setting, though.

Source: show | on GitHub

def primary_key reset_primary_key if PRIMARY_KEY_NOT_SET.equal?(@primary_key) @primary_key end

Sets the name of the primary key column.

class Project < ActiveRecord::Base
  self.primary_key = 'sysid'
end

You can also define the primary_key method yourself:

class Project < ActiveRecord::Base
  def self.primary_key
    'foo_' + super
  end
end

Project.primary_key # => "foo_id"

Source: show | on GitHub

def primary_key=(value) @primary_key = if value.is_a?(Array) include CompositePrimaryKey @primary_key = value.map { |v| -v.to_s }.freeze elsif value -value.to_s end

@composite_primary_key = value.is_a?(Array) @attributes_builder = nil end

Returns a quoted version of the primary key name.

Source: show | on GitHub

def quoted_primary_key adapter_class.quote_column_name(primary_key) end