Created
May 17, 2018 18:28
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begin | |
require 'bundler/inline' | |
rescue LoadError => e | |
$stderr.puts 'Bundler version 1.10 or later is required. Please update your Bundler' | |
raise e | |
end | |
gemfile(true) do | |
source 'https://rubygems.org' | |
gem 'rails', '5.1.0' # use correct rails version | |
gem 'cancancan' # use correct cancancan version | |
gem 'sqlite3' # use another DB if necessary | |
end | |
require 'active_record' | |
require 'cancancan' | |
require 'cancan/model_adapters/active_record_adapter' | |
require 'cancan/model_adapters/active_record_4_adapter' | |
require 'cancan/model_adapters/active_record_5_adapter' | |
require 'minitest/autorun' | |
require 'logger' | |
# This connection will do for database-independent bug reports. | |
ActiveRecord::Base.establish_connection(adapter: 'sqlite3', database: ':memory:') | |
ActiveRecord::Base.logger = Logger.new(STDOUT) | |
# create your tables here | |
ActiveRecord::Schema.define do | |
create_table :users, force: true do |t| | |
t.string :name | |
end | |
create_table :companies, force: true do |t| | |
t.string :name | |
end | |
create_table :user_companies, force: true do |t| | |
t.references :user | |
t.references :company | |
end | |
end | |
class User < ActiveRecord::Base | |
has_many :user_companies | |
has_many :companies, through: :user_companies | |
end | |
class Company < ActiveRecord::Base | |
has_many :user_companies | |
has_many :users, through: :user_companies | |
end | |
class UserCompany < ActiveRecord::Base | |
belongs_to :user | |
belongs_to :company | |
end | |
class Ability | |
include CanCan::Ability | |
def initialize(user) | |
can :manage, User, User.joins(companies: :users).where(companies: { users: { id: user.id } }) | |
end | |
end | |
class BugTest < Minitest::Test | |
def test_bug | |
user1 = User.create! | |
user2 = User.create! | |
user3 = User.create! | |
user4 = User.create! | |
company1 = Company.create! | |
company2 = Company.create! | |
UserCompany.create!(user: user1, company: company1) | |
UserCompany.create!(user: user2, company: company1) | |
UserCompany.create!(user: user3, company: company1) | |
UserCompany.create!(user: user4, company: company2) | |
ability = Ability.new(user1) | |
users = User.accessible_by(ability, :read).count | |
assert_equal 3, users | |
end | |
end |
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