Skip to Content Skip to Search
Methods
D
I
P
Q

Constants

ID_ATTRIBUTE_METHODS = %w(id id= id? id_before_type_cast id_was id_in_database id_for_database).to_set.freeze
 

Instance Public methods

dangerous_attribute_method?(method_name)

Source: show | on GitHub 

# File activerecord/lib/active_record/attribute_methods/primary_key.rb, line 77
def dangerous_attribute_method?(method_name)
  super && !ID_ATTRIBUTE_METHODS.include?(method_name)
end

instance_method_already_implemented?(method_name)

Source: show | on GitHub 

# File activerecord/lib/active_record/attribute_methods/primary_key.rb, line 73
def instance_method_already_implemented?(method_name)
  super || primary_key && ID_ATTRIBUTE_METHODS.include?(method_name)
end

primary_key()

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 

# File activerecord/lib/active_record/attribute_methods/primary_key.rb, line 84
def primary_key
  if table = loaded_mapped_table
    table._primary_key
  elsif @schema_context
    schema_context.primary_key
  elsif definition = configured_primary_key_definition
    definition.name
  else
    schema_context.primary_key
  end
end

primary_key=(value)

Sets the name of the primary key column.

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

Source: show | on GitHub 

# File activerecord/lib/active_record/attribute_methods/primary_key.rb, line 151
def primary_key=(value)
  definition = ActiveRecord::Key.for(value)
  @primary_key_definition = definition
  include CompositePrimaryKey if definition.composite?
  reload_schema_from_cache
  # Regenerate so the id_value reader is replaced by an alias.
  if definition.composite?
    ([self] + descendants).each do |model|
      model.undefine_attribute_methods if model.attribute_methods_generated?
    end
  end
end

quoted_primary_key()

Returns a quoted version of the primary key name.

Source: show | on GitHub 

# File activerecord/lib/active_record/attribute_methods/primary_key.rb, line 132
def quoted_primary_key
  adapter_class.quote_column_name(primary_key)
end