Class: Tapioca::Compilers::Dsl::ActiveRecordColumns

Inherits:
Base
  • Object
show all
Extended by:
T::Sig
Defined in:
lib/tapioca/compilers/dsl/active_record_columns.rb

Overview

‘Tapioca::Compilers::Dsl::ActiveRecordColumns` refines RBI files for subclasses of [`ActiveRecord::Base`](api.rubyonrails.org/classes/ActiveRecord/Base.html). This generator is only responsible for defining the attribute methods that would be created for the columns that are defined in the Active Record model.

For example, with the following model class: ~~~rb class Post < ActiveRecord::Base end ~~~

and the following database schema:

~~~rb # db/schema.rb create_table :posts do |t|

t.string :title, null: false
t.string :body
t.boolean :published
t.timestamps

end ~~~

this generator will produce the following methods in the RBI file ‘post.rbi`:

~~~rbi # post.rbi # typed: true class Post

include GeneratedAttributeMethods

module GeneratedAttributeMethods
  sig { returns(T.nilable(::String)) }
  def body; end

  sig { params(value: T.nilable(::String)).returns(T.nilable(::String)) }
  def body=; end

  sig { returns(T::Boolean) }
  def body?; end

  sig { returns(T.nilable(::ActiveSupport::TimeWithZone)) }
  def created_at; end

  sig { params(value: ::ActiveSupport::TimeWithZone).returns(::ActiveSupport::TimeWithZone) }
  def created_at=; end

  sig { returns(T::Boolean) }
  def created_at?; end

  sig { returns(T.nilable(T::Boolean)) }
  def published; end

  sig { params(value: T::Boolean).returns(T::Boolean) }
  def published=; end

  sig { returns(T::Boolean) }
  def published?; end

  sig { returns(::String) }
  def title; end

  sig { params(value: ::String).returns(::String) }
  def title=(value); end

  sig { returns(T::Boolean) }
  def title?; end

  sig { returns(T.nilable(::ActiveSupport::TimeWithZone)) }
  def updated_at; end

  sig { params(value: ::ActiveSupport::TimeWithZone).returns(::ActiveSupport::TimeWithZone) }
  def updated_at=; end

  sig { returns(T::Boolean) }
  def updated_at?; end

  ## Also the methods added by https://api.rubyonrails.org/classes/ActiveRecord/AttributeMethods/Dirty.html
  ## Also the methods added by https://api.rubyonrails.org/classes/ActiveModel/Dirty.html
  ## Also the methods added by https://api.rubyonrails.org/classes/ActiveRecord/AttributeMethods/BeforeTypeCast.html
end

end ~~~

Instance Attribute Summary

Attributes inherited from Base

#processable_constants

Instance Method Summary collapse

Methods inherited from Base

#handles?, #initialize

Constructor Details

This class inherits a constructor from Tapioca::Compilers::Dsl::Base

Instance Method Details

#decorate(root, constant) ⇒ Object 



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# File 'lib/tapioca/compilers/dsl/active_record_columns.rb', line 103

def decorate(root, constant)
  return unless constant.table_exists?

  root.path(constant) do |model|
    module_name = "GeneratedAttributeMethods"

    model.create_module(module_name) do |mod|
      constant.columns_hash.each_key do |column_name|
        column_name = column_name.to_s
        add_methods_for_attribute(mod, constant, column_name)
      end

      constant.attribute_aliases.each do |attribute_name, column_name|
        attribute_name = attribute_name.to_s
        column_name = column_name.to_s
        new_method_names = constant.attribute_method_matchers.map { |m| m.method_name(attribute_name) }
        old_method_names = constant.attribute_method_matchers.map { |m| m.method_name(column_name) }
        methods_to_add = new_method_names - old_method_names

        add_methods_for_attribute(mod, constant, column_name, attribute_name, methods_to_add)
      end
    end

    model.create_include(module_name)
  end
end

#gather_constants ⇒ Object 



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# File 'lib/tapioca/compilers/dsl/active_record_columns.rb', line 131

def gather_constants
  ActiveRecord::Base.descendants.reject(&:abstract_class?)
end