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rails--rails/activerecord/test/models/topic.rb
Ryuta Kamizono 8589e8c236 Allow define scope for Ruby reserved keywords
For now argument forwarding doesn't allow some keywords like `true` as a
method name.

To bypass the issue, fallback to `define_method` if method names are
Ruby reserved keywords.

https://bugs.ruby-lang.org/issues/16854

```ruby
class Works
  def true(*args)
    puts(*args)
  end
end

Works.new.true 1, 2, 3
# => 1, 2, 3

class WontWork
  def true(...)
    puts(...)
  end
end
```

```
% ruby a.rb
a.rb:12: syntax error, unexpected ..., expecting ')'
  def true(...)
a.rb:13: unexpected ...
a.rb:15: syntax error, unexpected `end', expecting end-of-input
```
2020-05-14 21:39:39 +09:00

150 lines
3.6 KiB
Ruby

# frozen_string_literal: true
class Topic < ActiveRecord::Base
scope :base, -> { all }
scope :written_before, lambda { |time|
if time
where "written_on < ?", time
end
}
scope :approved, -> { where(approved: true) }
scope :rejected, -> { where(approved: false) }
scope :true, -> { where(approved: true) }
scope :false, -> { where(approved: false) }
scope :scope_with_lambda, lambda { all }
scope :by_lifo, -> { where(author_name: "lifo") }
scope :replied, -> { where "replies_count > 0" }
scope "approved_as_string", -> { where(approved: true) }
scope :anonymous_extension, -> { } do
def one
1
end
end
scope :scope_stats, -> stats { stats[:count] = count; self }
def self.klass_stats(stats); stats[:count] = count; self; end
scope :with_object, Class.new(Struct.new(:klass)) {
def call
klass.where(approved: true)
end
}.new(self)
scope :with_kwargs, ->(approved: false) { where(approved: approved) }
module NamedExtension
def two
2
end
end
has_many :replies, dependent: :destroy, foreign_key: "parent_id", autosave: true
has_many :approved_replies, -> { approved }, class_name: "Reply", foreign_key: "parent_id", counter_cache: "replies_count"
has_many :open_replies, -> { open }, class_name: "Reply", foreign_key: "parent_id"
has_many :unique_replies, dependent: :destroy, foreign_key: "parent_id"
has_many :silly_unique_replies, dependent: :destroy, foreign_key: "parent_id"
serialize :content
before_create :default_written_on
before_destroy :destroy_children
def parent
Topic.find(parent_id)
end
# trivial method for testing Array#to_xml with :methods
def topic_id
id
end
alias_attribute :heading, :title
before_validation :before_validation_for_transaction
before_save :before_save_for_transaction
before_destroy :before_destroy_for_transaction
after_save :after_save_for_transaction
after_create :after_create_for_transaction
after_initialize :set_email_address
attr_accessor :change_approved_before_save
before_save :change_approved_callback
class_attribute :after_initialize_called
after_initialize do
self.class.after_initialize_called = true
end
attr_accessor :after_touch_called
after_initialize do
self.after_touch_called = 0
end
after_touch do
self.after_touch_called += 1
end
def approved=(val)
@custom_approved = val
write_attribute(:approved, val)
end
def self.nested_scoping(scope)
scope.base
end
private
def default_written_on
self.written_on = Time.now unless attribute_present?("written_on")
end
def destroy_children
self.class.delete_by(parent_id: id)
end
def set_email_address
unless persisted? || will_save_change_to_author_email_address?
self.author_email_address = "test@test.com"
end
end
def before_validation_for_transaction; end
def before_save_for_transaction; end
def before_destroy_for_transaction; end
def after_save_for_transaction; end
def after_create_for_transaction; end
def change_approved_callback
self.approved = change_approved_before_save unless change_approved_before_save.nil?
end
end
class DefaultRejectedTopic < Topic
default_scope -> { where(approved: false) }
end
class BlankTopic < Topic
# declared here to make sure that dynamic finder with a bang can find a model that responds to `blank?`
def blank?
true
end
end
class TitlePrimaryKeyTopic < Topic
self.primary_key = :title
end
module Web
class Topic < ActiveRecord::Base
has_many :replies, dependent: :destroy, foreign_key: "parent_id", class_name: "Web::Reply"
end
end