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require "cases/helper"
require 'models/developer'
require 'models/project'
require 'models/company'
require 'models/customer'
require 'models/order'
require 'models/categorization'
require 'models/category'
require 'models/post'
require 'models/author'
require 'models/tag'
require 'models/tagging'
require 'models/parrot'
require 'models/pirate'
require 'models/treasure'
require 'models/price_estimate'
require 'models/club'
require 'models/member'
require 'models/membership'
require 'models/sponsor'
require 'models/country'
require 'models/treaty'
require 'active_support/core_ext/string/conversions'
class ProjectWithAfterCreateHook < ActiveRecord::Base
self.table_name = 'projects'
has_and_belongs_to_many :developers,
:class_name => "DeveloperForProjectWithAfterCreateHook",
:join_table => "developers_projects",
:foreign_key => "project_id",
:association_foreign_key => "developer_id"
after_create :add_david
def add_david
david = DeveloperForProjectWithAfterCreateHook.find_by_name('David')
david.projects << self
end
end
class DeveloperForProjectWithAfterCreateHook < ActiveRecord::Base
self.table_name = 'developers'
has_and_belongs_to_many :projects,
:class_name => "ProjectWithAfterCreateHook",
:join_table => "developers_projects",
:association_foreign_key => "project_id",
:foreign_key => "developer_id"
end
class ProjectWithSymbolsForKeys < ActiveRecord::Base
self.table_name = 'projects'
has_and_belongs_to_many :developers,
:class_name => "DeveloperWithSymbolsForKeys",
:join_table => :developers_projects,
:foreign_key => :project_id,
:association_foreign_key => "developer_id"
end
class DeveloperWithSymbolsForKeys < ActiveRecord::Base
self.table_name = 'developers'
has_and_belongs_to_many :projects,
:class_name => "ProjectWithSymbolsForKeys",
:join_table => :developers_projects,
:association_foreign_key => :project_id,
:foreign_key => "developer_id"
end
class HasAndBelongsToManyAssociationsTest < ActiveRecord::TestCase
fixtures :accounts, :companies, :categories, :posts, :categories_posts, :developers, :projects, :developers_projects,
:parrots, :pirates, :parrots_pirates, :treasures, :price_estimates, :tags, :taggings
def setup_data_for_habtm_case
ActiveRecord::Base.connection.execute('delete from countries_treaties')
country = Country.new(:name => 'India')
country.country_id = 'c1'
country.save!
treaty = Treaty.new(:name => 'peace')
treaty.treaty_id = 't1'
country.treaties << treaty
end
def test_should_property_quote_string_primary_keys
setup_data_for_habtm_case
con = ActiveRecord::Base.connection
sql = 'select * from countries_treaties'
record = con.select_rows(sql).last
assert_equal 'c1', record[0]
assert_equal 't1', record[1]
end
def test_proper_usage_of_primary_keys_and_join_table
setup_data_for_habtm_case
assert_equal 'country_id', Country.primary_key
assert_equal 'treaty_id', Treaty.primary_key
country = Country.first
assert_equal 1, country.treaties.count
end
def test_has_and_belongs_to_many
david = Developer.find(1)
assert !david.projects.empty?
assert_equal 2, david.projects.size
active_record = Project.find(1)
assert !active_record.developers.empty?
assert_equal 3, active_record.developers.size
assert active_record.developers.include?(david)
end
def test_adding_single
jamis = Developer.find(2)
jamis.projects.reload # causing the collection to load
action_controller = Project.find(2)
assert_equal 1, jamis.projects.size
assert_equal 1, action_controller.developers.size
jamis.projects << action_controller
assert_equal 2, jamis.projects.size
assert_equal 2, jamis.projects(true).size
assert_equal 2, action_controller.developers(true).size
end
def test_adding_type_mismatch
jamis = Developer.find(2)
assert_raise(ActiveRecord::AssociationTypeMismatch) { jamis.projects << nil }
assert_raise(ActiveRecord::AssociationTypeMismatch) { jamis.projects << 1 }
end
def test_adding_from_the_project
jamis = Developer.find(2)
action_controller = Project.find(2)
action_controller.developers.reload
assert_equal 1, jamis.projects.size
assert_equal 1, action_controller.developers.size
action_controller.developers << jamis
assert_equal 2, jamis.projects(true).size
assert_equal 2, action_controller.developers.size
assert_equal 2, action_controller.developers(true).size
end
def test_adding_from_the_project_fixed_timestamp
jamis = Developer.find(2)
action_controller = Project.find(2)
action_controller.developers.reload
assert_equal 1, jamis.projects.size
assert_equal 1, action_controller.developers.size
updated_at = jamis.updated_at
action_controller.developers << jamis
assert_equal updated_at, jamis.updated_at
assert_equal 2, jamis.projects(true).size
assert_equal 2, action_controller.developers.size
assert_equal 2, action_controller.developers(true).size
end
def test_adding_multiple
aredridel = Developer.new("name" => "Aredridel")
aredridel.save
aredridel.projects.reload
aredridel.projects.push(Project.find(1), Project.find(2))
assert_equal 2, aredridel.projects.size
assert_equal 2, aredridel.projects(true).size
end
def test_adding_a_collection
aredridel = Developer.new("name" => "Aredridel")
aredridel.save
aredridel.projects.reload
aredridel.projects.concat([Project.find(1), Project.find(2)])
assert_equal 2, aredridel.projects.size
assert_equal 2, aredridel.projects(true).size
end
def test_habtm_adding_before_save
no_of_devels = Developer.count
no_of_projects = Project.count
aredridel = Developer.new("name" => "Aredridel")
aredridel.projects.concat([Project.find(1), p = Project.new("name" => "Projekt")])
assert !aredridel.persisted?
assert !p.persisted?
assert aredridel.save
assert aredridel.persisted?
assert_equal no_of_devels+1, Developer.count
assert_equal no_of_projects+1, Project.count
assert_equal 2, aredridel.projects.size
assert_equal 2, aredridel.projects(true).size
end
def test_habtm_saving_multiple_relationships
new_project = Project.new("name" => "Grimetime")
amount_of_developers = 4
developers = (0...amount_of_developers).collect {|i| Developer.create(:name => "JME #{i}") }.reverse
new_project.developer_ids = [developers[0].id, developers[1].id]
new_project.developers_with_callback_ids = [developers[2].id, developers[3].id]
assert new_project.save
new_project.reload
assert_equal amount_of_developers, new_project.developers.size
assert_equal developers, new_project.developers
end
def test_habtm_unique_order_preserved
assert_equal developers(:poor_jamis, :jamis, :david), projects(:active_record).non_unique_developers
assert_equal developers(:poor_jamis, :jamis, :david), projects(:active_record).developers
end
def test_build
devel = Developer.find(1)
proj = assert_no_queries { devel.projects.build("name" => "Projekt") }
assert !devel.projects.loaded?
assert_equal devel.projects.last, proj
assert devel.projects.loaded?
assert !proj.persisted?
devel.save
assert proj.persisted?
assert_equal devel.projects.last, proj
assert_equal Developer.find(1).projects.sort_by(&:id).last, proj # prove join table is updated
end
def test_new_aliased_to_build
devel = Developer.find(1)
proj = assert_no_queries { devel.projects.new("name" => "Projekt") }
assert !devel.projects.loaded?
assert_equal devel.projects.last, proj
assert devel.projects.loaded?
assert !proj.persisted?
devel.save
assert proj.persisted?
assert_equal devel.projects.last, proj
assert_equal Developer.find(1).projects.sort_by(&:id).last, proj # prove join table is updated
end
def test_build_by_new_record
devel = Developer.new(:name => "Marcel", :salary => 75000)
devel.projects.build(:name => "Make bed")
proj2 = devel.projects.build(:name => "Lie in it")
assert_equal devel.projects.last, proj2
assert !proj2.persisted?
devel.save
assert devel.persisted?
assert proj2.persisted?
assert_equal devel.projects.last, proj2
assert_equal Developer.find_by_name("Marcel").projects.last, proj2 # prove join table is updated
end
def test_create
devel = Developer.find(1)
proj = devel.projects.create("name" => "Projekt")
assert !devel.projects.loaded?
assert_equal devel.projects.last, proj
assert !devel.projects.loaded?
assert proj.persisted?
assert_equal Developer.find(1).projects.sort_by(&:id).last, proj # prove join table is updated
end
def test_create_by_new_record
devel = Developer.new(:name => "Marcel", :salary => 75000)
devel.projects.build(:name => "Make bed")
proj2 = devel.projects.build(:name => "Lie in it")
assert_equal devel.projects.last, proj2
assert !proj2.persisted?
devel.save
assert devel.persisted?
assert proj2.persisted?
assert_equal devel.projects.last, proj2
assert_equal Developer.find_by_name("Marcel").projects.last, proj2 # prove join table is updated
end
def test_creation_respects_hash_condition
# in Oracle '' is saved as null therefore need to save ' ' in not null column
post = categories(:general).post_with_conditions.build(:body => ' ')
assert post.save
assert_equal 'Yet Another Testing Title', post.title
# in Oracle '' is saved as null therefore need to save ' ' in not null column
another_post = categories(:general).post_with_conditions.create(:body => ' ')
assert another_post.persisted?
assert_equal 'Yet Another Testing Title', another_post.title
end
def test_uniq_after_the_fact
dev = developers(:jamis)
dev.projects << projects(:active_record)
dev.projects << projects(:active_record)
assert_equal 3, dev.projects.size
assert_equal 1, dev.projects.distinct.size
end
def test_uniq_before_the_fact
projects(:active_record).developers << developers(:jamis)
projects(:active_record).developers << developers(:david)
assert_equal 3, projects(:active_record, :reload).developers.size
end
def test_uniq_option_prevents_duplicate_push
project = projects(:active_record)
project.developers << developers(:jamis)
project.developers << developers(:david)
assert_equal 3, project.developers.size
project.developers << developers(:david)
project.developers << developers(:jamis)
assert_equal 3, project.developers.size
end
def test_uniq_when_association_already_loaded
project = projects(:active_record)
project.developers << [ developers(:jamis), developers(:david), developers(:jamis), developers(:david) ]
assert_equal 3, Project.includes(:developers).find(project.id).developers.size
end
def test_deleting
david = Developer.find(1)
active_record = Project.find(1)
david.projects.reload
assert_equal 2, david.projects.size
assert_equal 3, active_record.developers.size
david.projects.delete(active_record)
assert_equal 1, david.projects.size
assert_equal 1, david.projects(true).size
assert_equal 2, active_record.developers(true).size
end
def test_deleting_array
david = Developer.find(1)
david.projects.reload
david.projects.delete(Project.all.to_a)
assert_equal 0, david.projects.size
assert_equal 0, david.projects(true).size
end
def test_deleting_all
david = Developer.find(1)
david.projects.reload
david.projects.clear
assert_equal 0, david.projects.size
assert_equal 0, david.projects(true).size
end
def test_removing_associations_on_destroy
david = DeveloperWithBeforeDestroyRaise.find(1)
assert !david.projects.empty?
david.destroy
assert david.projects.empty?
assert DeveloperWithBeforeDestroyRaise.connection.select_all("SELECT * FROM developers_projects WHERE developer_id = 1").empty?
end
def test_destroying
david = Developer.find(1)
project = Project.find(1)
david.projects.reload
assert_equal 2, david.projects.size
assert_equal 3, project.developers.size
assert_no_difference "Project.count" do
david.projects.destroy(project)
end
join_records = Developer.connection.select_all("SELECT * FROM developers_projects WHERE developer_id = #{david.id} AND project_id = #{project.id}")
assert join_records.empty?
assert_equal 1, david.reload.projects.size
assert_equal 1, david.projects(true).size
end
def test_destroying_many
david = Developer.find(1)
david.projects.reload
projects = Project.all.to_a
assert_no_difference "Project.count" do
david.projects.destroy(*projects)
end
join_records = Developer.connection.select_all("SELECT * FROM developers_projects WHERE developer_id = #{david.id}")
assert join_records.empty?
assert_equal 0, david.reload.projects.size
assert_equal 0, david.projects(true).size
end
def test_destroy_all
david = Developer.find(1)
david.projects.reload
assert !david.projects.empty?
assert_no_difference "Project.count" do
david.projects.destroy_all
end
join_records = Developer.connection.select_all("SELECT * FROM developers_projects WHERE developer_id = #{david.id}")
assert join_records.empty?
assert david.projects.empty?
assert david.projects(true).empty?
end
def test_destroy_associations_destroys_multiple_associations
george = parrots(:george)
assert !george.pirates.empty?
assert !george.treasures.empty?
assert_no_difference "Pirate.count" do
assert_no_difference "Treasure.count" do
george.destroy_associations
end
end
join_records = Parrot.connection.select_all("SELECT * FROM parrots_pirates WHERE parrot_id = #{george.id}")
assert join_records.empty?
assert george.pirates(true).empty?
join_records = Parrot.connection.select_all("SELECT * FROM parrots_treasures WHERE parrot_id = #{george.id}")
assert join_records.empty?
assert george.treasures(true).empty?
end
def test_associations_with_conditions
assert_equal 3, projects(:active_record).developers.size
assert_equal 1, projects(:active_record).developers_named_david.size
assert_equal 1, projects(:active_record).developers_named_david_with_hash_conditions.size
assert_equal developers(:david), projects(:active_record).developers_named_david.find(developers(:david).id)
assert_equal developers(:david), projects(:active_record).developers_named_david_with_hash_conditions.find(developers(:david).id)
assert_equal developers(:david), projects(:active_record).salaried_developers.find(developers(:david).id)
projects(:active_record).developers_named_david.clear
assert_equal 2, projects(:active_record, :reload).developers.size
end
def test_find_in_association
# Using sql
assert_equal developers(:david), projects(:active_record).developers.find(developers(:david).id), "SQL find"
# Using ruby
active_record = projects(:active_record)
active_record.developers.reload
assert_equal developers(:david), active_record.developers.find(developers(:david).id), "Ruby find"
end
def test_include_uses_array_include_after_loaded
project = projects(:active_record)
project.developers.load_target
developer = project.developers.first
assert_no_queries do
assert project.developers.loaded?
assert project.developers.include?(developer)
end
end
def test_include_checks_if_record_exists_if_target_not_loaded
project = projects(:active_record)
developer = project.developers.first
project.reload
assert ! project.developers.loaded?
assert_queries(1) do
assert project.developers.include?(developer)
end
assert ! project.developers.loaded?
end
def test_include_returns_false_for_non_matching_record_to_verify_scoping
project = projects(:active_record)
developer = Developer.create :name => "Bryan", :salary => 50_000
assert ! project.developers.loaded?
assert ! project.developers.include?(developer)
end
def test_find_with_merged_options
assert_equal 1, projects(:active_record).limited_developers.size
assert_equal 1, projects(:active_record).limited_developers.to_a.size
assert_equal 3, projects(:active_record).limited_developers.limit(nil).to_a.size
end
def test_dynamic_find_should_respect_association_order
# Developers are ordered 'name DESC, id DESC'
high_id_jamis = projects(:active_record).developers.create(:name => 'Jamis')
assert_equal high_id_jamis, projects(:active_record).developers.merge(:where => "name = 'Jamis'").first
assert_equal high_id_jamis, projects(:active_record).developers.find_by_name('Jamis')
end
def test_find_should_append_to_association_order
ordered_developers = projects(:active_record).developers.order('projects.id')
assert_equal ['developers.name desc, developers.id desc', 'projects.id'], ordered_developers.order_values
end
def test_dynamic_find_all_should_respect_readonly_access
projects(:active_record).readonly_developers.each { |d| assert_raise(ActiveRecord::ReadOnlyRecord) { d.save! } if d.valid?}
projects(:active_record).readonly_developers.each { |d| d.readonly? }
end
def test_new_with_values_in_collection
jamis = DeveloperForProjectWithAfterCreateHook.find_by_name('Jamis')
david = DeveloperForProjectWithAfterCreateHook.find_by_name('David')
project = ProjectWithAfterCreateHook.new(:name => "Cooking with Bertie")
project.developers << jamis
project.save!
project.reload
assert project.developers.include?(jamis)
assert project.developers.include?(david)
end
def test_find_in_association_with_options
developers = projects(:active_record).developers.to_a
assert_equal 3, developers.size
assert_equal developers(:poor_jamis), projects(:active_record).developers.where("salary < 10000").first
end
def test_replace_with_less
david = developers(:david)
david.projects = [projects(:action_controller)]
assert david.save
assert_equal 1, david.projects.length
end
def test_replace_with_new
david = developers(:david)
david.projects = [projects(:action_controller), Project.new("name" => "ActionWebSearch")]
david.save
assert_equal 2, david.projects.length
assert !david.projects.include?(projects(:active_record))
end
def test_replace_on_new_object
new_developer = Developer.new("name" => "Matz")
new_developer.projects = [projects(:action_controller), Project.new("name" => "ActionWebSearch")]
new_developer.save
assert_equal 2, new_developer.projects.length
end
def test_consider_type
developer = Developer.first
special_project = SpecialProject.create("name" => "Special Project")
other_project = developer.projects.first
developer.special_projects << special_project
developer.reload
assert developer.projects.include?(special_project)
assert developer.special_projects.include?(special_project)
assert !developer.special_projects.include?(other_project)
end
def test_update_attributes_after_push_without_duplicate_join_table_rows
developer = Developer.new("name" => "Kano")
project = SpecialProject.create("name" => "Special Project")
assert developer.save
developer.projects << project
developer.update_columns("name" => "Bruza")
assert_equal 1, Developer.connection.select_value(<<-end_sql).to_i
SELECT count(*) FROM developers_projects
WHERE project_id = #{project.id}
AND developer_id = #{developer.id}
end_sql
end
def test_updating_attributes_on_non_rich_associations
welcome = categories(:technology).posts.first
welcome.title = "Something else"
assert welcome.save!
end
def test_habtm_respects_select
categories(:technology).select_testing_posts(true).each do |o|
assert_respond_to o, :correctness_marker
end
assert_respond_to categories(:technology).select_testing_posts.first, :correctness_marker
end
def test_habtm_selects_all_columns_by_default
assert_equal Project.column_names.sort, developers(:david).projects.first.attributes.keys.sort
end
def test_habtm_respects_select_query_method
assert_equal ['id'], developers(:david).projects.select(:id).first.attributes.keys
end
def test_join_table_alias
# FIXME: `references` has no impact on the aliases generated for the join
# query. The fact that we pass `:developers_projects_join` to `references`
# and that the SQL string contains `developers_projects_join` is merely a
# coincidence.
assert_equal(
3,
Developer.references(:developers_projects_join).merge(
:includes => {:projects => :developers},
:where => 'projects_developers_projects_join.joined_on IS NOT NULL'
).to_a.size
)
end
def test_join_with_group
# FIXME: `references` has no impact on the aliases generated for the join
# query. The fact that we pass `:developers_projects_join` to `references`
# and that the SQL string contains `developers_projects_join` is merely a
# coincidence.
group = Developer.columns.inject([]) do |g, c|
g << "developers.#{c.name}"
g << "developers_projects_2.#{c.name}"
end
Project.columns.each { |c| group << "projects.#{c.name}" }
assert_equal(
3,
Developer.references(:developers_projects_join).merge(
:includes => {:projects => :developers}, :where => 'projects_developers_projects_join.joined_on IS NOT NULL',
:group => group.join(",")
).to_a.size
)
end
def test_find_grouped
all_posts_from_category1 = Post.all.merge!(:where => "category_id = 1", :joins => :categories).to_a
grouped_posts_of_category1 = Post.all.merge!(:where => "category_id = 1", :group => "author_id", :select => 'count(posts.id) as posts_count', :joins => :categories).to_a
assert_equal 5, all_posts_from_category1.size
assert_equal 2, grouped_posts_of_category1.size
end
def test_find_scoped_grouped
assert_equal 5, categories(:general).posts_grouped_by_title.to_a.size
assert_equal 1, categories(:technology).posts_grouped_by_title.to_a.size
end
def test_find_scoped_grouped_having
assert_equal 2, projects(:active_record).well_payed_salary_groups.to_a.size
assert projects(:active_record).well_payed_salary_groups.all? { |g| g.salary > 10000 }
end
def test_get_ids
assert_equal projects(:active_record, :action_controller).map(&:id).sort, developers(:david).project_ids.sort
assert_equal [projects(:active_record).id], developers(:jamis).project_ids
end
def test_get_ids_for_loaded_associations
developer = developers(:david)
developer.projects(true)
assert_queries(0) do
developer.project_ids
developer.project_ids
end
end
def test_get_ids_for_unloaded_associations_does_not_load_them
developer = developers(:david)
assert !developer.projects.loaded?
assert_equal projects(:active_record, :action_controller).map(&:id).sort, developer.project_ids.sort
assert !developer.projects.loaded?
end
def test_assign_ids
developer = Developer.new("name" => "Joe")
developer.project_ids = projects(:active_record, :action_controller).map(&:id)
developer.save
developer.reload
assert_equal 2, developer.projects.length
assert_equal [projects(:active_record), projects(:action_controller)].map(&:id).sort, developer.project_ids.sort
end
def test_assign_ids_ignoring_blanks
developer = Developer.new("name" => "Joe")
developer.project_ids = [projects(:active_record).id, nil, projects(:action_controller).id, '']
developer.save
developer.reload
assert_equal 2, developer.projects.length
assert_equal [projects(:active_record), projects(:action_controller)].map(&:id).sort, developer.project_ids.sort
end
def test_scoped_find_on_through_association_doesnt_return_read_only_records
tag = Post.find(1).tags.find_by_name("General")
assert_nothing_raised do
tag.save!
end
end
def test_has_many_through_polymorphic_has_manys_works
assert_equal [10, 20].to_set, pirates(:redbeard).treasure_estimates.map(&:price).to_set
end
def test_symbols_as_keys
developer = DeveloperWithSymbolsForKeys.new(:name => 'David')
project = ProjectWithSymbolsForKeys.new(:name => 'Rails Testing')
project.developers << developer
project.save!
assert_equal 1, project.developers.size
assert_equal 1, developer.projects.size
assert_equal developer, project.developers.first
assert_equal project, developer.projects.first
end
def test_dynamic_find_should_respect_association_include
# SQL error in sort clause if :include is not included
# due to Unknown column 'authors.id'
assert Category.find(1).posts_with_authors_sorted_by_author_id.find_by_title('Welcome to the weblog')
end
def test_count
david = Developer.find(1)
assert_equal 2, david.projects.count
end
def test_association_proxy_transaction_method_starts_transaction_in_association_class
Post.expects(:transaction)
Category.first.posts.transaction do
# nothing
end
end
def test_caching_of_columns
david = Developer.find(1)
# clear cache possibly created by other tests
david.projects.reset_column_information
assert_queries(:any) { david.projects.columns }
assert_no_queries { david.projects.columns }
## and again to verify that reset_column_information clears the cache correctly
david.projects.reset_column_information
assert_queries(:any) { david.projects.columns }
assert_no_queries { david.projects.columns }
end
def test_attributes_are_being_set_when_initialized_from_habm_association_with_where_clause
new_developer = projects(:action_controller).developers.where(:name => "Marcelo").build
assert_equal new_developer.name, "Marcelo"
end
def test_attributes_are_being_set_when_initialized_from_habm_association_with_multiple_where_clauses
new_developer = projects(:action_controller).developers.where(:name => "Marcelo").where(:salary => 90_000).build
assert_equal new_developer.name, "Marcelo"
assert_equal new_developer.salary, 90_000
end
def test_include_method_in_has_and_belongs_to_many_association_should_return_true_for_instance_added_with_build
project = Project.new
developer = project.developers.build
assert project.developers.include?(developer)
end
test "has and belongs to many associations on new records use null relations" do
projects = Developer.new.projects
assert_no_queries do
assert_equal [], projects
assert_equal [], projects.where(title: 'omg')
assert_equal [], projects.pluck(:title)
assert_equal 0, projects.count
end
end
end
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