# Activate the gem you are reporting the issue against.
gem 'activerecord', '4.1.9'
gem 'minitest'
gem 'logger'
gem 'squeel', '1.2.2'
require 'active_record'
require 'minitest/autorun'
require 'logger'
require 'squeel'

# This connection will do for database-independent bug reports.
ActiveRecord::Base.establish_connection({
  adapter: 'mysql2',
  database: 'kliendikaardid_test',
  username: 'vagrant',
  password: 'vagrant',
  host: 'localhost'
})
ActiveRecord::Base.logger = Logger.new(STDOUT)

ActiveRecord::Schema.define do
  create_table :trees, force: true do |t|
  end

  create_table :branches, force: true do |t|
    t.belongs_to :tree
  end

  create_table :leafs, force: true do |t|
    t.belongs_to :branch
    t.boolean    :broken
    t.boolean    :some_bool
  end
end

module SomeModule

  def default_scope_from_module
    default_scope { where('leafs.broken IS NULL') }
  end

end

ActiveRecord::Base.send :extend, SomeModule

class Tree < ActiveRecord::Base
  has_many :branches
end

class Branch < ActiveRecord::Base
  belongs_to :tree, inverse_of: :branches
  has_many :leafs
end

class Leaf < ActiveRecord::Base
  default_scope_from_module
  default_scope { where('leafs.some_bool = 1') }

  belongs_to :branch, inverse_of: :leafs
end

class BugTest < Minitest::Test
  def test_default_scope_from_extend
    tree = Tree.create!()
    tree.branches.joins(:leafs).each do ||
      # error already met before this step
    end
  end
end

ActiveRecord::StatementInvalid: Mysql2::Error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '1) WHERE `branches`.`tree_id` = 1' at line 1: SELECT `branches`.* FROM `branches` INNER JOIN `leafs` ON `leafs`.`branch_id` = `branches`.`id` AND (leafs.broken IS NULL), (leafs.some_bool = 1) WHERE `branches`.`tree_id` = 1