Module: ActiveRecord::AttributeMethods::PrimaryKey::ClassMethods
- Defined in:
- lib/active_record/attribute_methods/primary_key.rb
Instance Method Summary collapse
-
#get_primary_key(base_name) ⇒ Object
:nodoc:.
-
#primary_key ⇒ Object
Defines the primary key field – can be overridden in subclasses.
-
#reset_primary_key ⇒ Object
:nodoc:.
-
#set_primary_key(value = nil, &block) ⇒ Object
(also: #primary_key=)
Sets the name of the primary key column to use to the given value, or (if the value is nil or false) to the value returned by the given block.
Instance Method Details
#get_primary_key(base_name) ⇒ Object
:nodoc:
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# File 'lib/active_record/attribute_methods/primary_key.rb', line 26 def get_primary_key(base_name) #:nodoc: key = 'id' case primary_key_prefix_type when :table_name key = base_name.to_s.foreign_key(false) when :table_name_with_underscore key = base_name.to_s.foreign_key end key end |
#primary_key ⇒ Object
Defines the primary key field – can be overridden in subclasses. Overwriting will negate any effect of the primary_key_prefix_type setting, though.
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# File 'lib/active_record/attribute_methods/primary_key.rb', line 16 def primary_key reset_primary_key end |
#reset_primary_key ⇒ Object
:nodoc:
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# File 'lib/active_record/attribute_methods/primary_key.rb', line 20 def reset_primary_key #:nodoc: key = get_primary_key(base_class.name) set_primary_key(key) key end |
#set_primary_key(value = nil, &block) ⇒ Object Also known as: primary_key=
Sets the name of the primary key column to use to the given value, or (if the value is nil or false) to the value returned by the given block.
class Project < ActiveRecord::Base
set_primary_key "sysid"
end
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# File 'lib/active_record/attribute_methods/primary_key.rb', line 44 def set_primary_key(value = nil, &block) define_attr_method :primary_key, value, &block end |