require 'abstract_unit'
require 'fixtures/post'
require 'fixtures/comment'
require 'fixtures/author'
require 'fixtures/category'
require 'fixtures/categorization'
require 'fixtures/company'
require 'fixtures/topic'
require 'fixtures/reply'
require 'fixtures/developer'
require 'fixtures/project'
class ArJoinsTest < Test::Unit::TestCase
fixtures :authors, :posts, :comments, :categories, :categories_posts, :people,
:developers, :projects, :developers_projects,
:categorizations, :companies, :accounts, :topics
def test_ar_joins
authors = Author.find(:all, :joins => :posts, :conditions => ['posts.type = ?', "Post"])
assert_not_equal(0 , authors.length)
authors.each do |author|
assert !(author.send(:instance_variables).include? "@posts")
assert(!author.readonly?, "non-string join value produced read-only result.")
end
end
def test_ar_joins_with_cascaded_two_levels
authors = Author.find(:all, :joins=>{:posts=>:comments})
assert_equal(2, authors.length)
authors.each do |author|
assert !(author.send(:instance_variables).include? "@posts")
assert(!author.readonly?, "non-string join value produced read-only result.")
end
authors = Author.find(:all, :joins=>{:posts=>:comments}, :conditions => ["comments.body = ?", "go crazy" ])
assert_equal(1, authors.length)
authors.each do |author|
assert !(author.send(:instance_variables).include? "@posts")
assert(!author.readonly?, "non-string join value produced read-only result.")
end
end
def test_ar_joins_with_complex_conditions
authors = Author.find(:all, :joins=>{:posts=>[:comments, :categories]},
:conditions => ["categories.name = ? AND posts.title = ?", "General", "So I was thinking"]
)
assert_equal(1, authors.length)
authors.each do |author|
assert !(author.send(:instance_variables).include? "@posts")
assert(!author.readonly?, "non-string join value produced read-only result.")
end
assert_equal("David", authors.first.name)
end
def test_ar_join_with_has_many_and_limit_and_scoped_and_explicit_conditions
Post.with_scope(:find => { :conditions => "1=1" }) do
posts = authors(:david).posts.find(:all,
:joins => :comments,
:conditions => "comments.body like 'Normal%' OR comments.#{QUOTED_TYPE}= 'SpecialComment'",
:limit => 2
)
assert_equal 2, posts.size
count = Post.count(
:joins => [ :comments, :author ],
:conditions => "authors.name = 'David' AND (comments.body like 'Normal%' OR comments.#{QUOTED_TYPE}= 'SpecialComment')",
:limit => 2
)
assert_equal count, posts.size
end
end
def test_ar_join_with_scoped_order_using_association_limiting_without_explicit_scope
posts_with_explicit_order = Post.find(:all, :conditions => 'comments.id is not null', :joins => :comments, :order => 'posts.id DESC', :limit => 2)
posts_with_scoped_order = Post.with_scope(:find => {:order => 'posts.id DESC'}) do
Post.find(:all, :conditions => 'comments.id is not null', :joins => :comments, :limit => 2)
end
assert_equal posts_with_explicit_order, posts_with_scoped_order
end
def test_scoped_find_include
# with the include, will retrieve only developers for the given project
scoped_developers = Developer.with_scope(:find => { :joins => :projects }) do
Developer.find(:all, :conditions => 'projects.id = 2')
end
assert scoped_developers.include?(developers(:david))
assert !scoped_developers.include?(developers(:jamis))
assert_equal 1, scoped_developers.size
end
def test_nested_scoped_find_ar_join
Developer.with_scope(:find => { :joins => :projects }) do
Developer.with_scope(:find => { :conditions => "projects.id = 2" }) do
assert_equal('David', Developer.find(:first).name)
end
end
end
def test_nested_scoped_find_merged_ar_join
# :include's remain unique and don't "double up" when merging
Developer.with_scope(:find => { :joins => :projects, :conditions => "projects.id = 2" }) do
Developer.with_scope(:find => { :joins => :projects }) do
assert_equal 1, Developer.instance_eval('current_scoped_methods')[:find][:ar_joins].length
assert_equal('David', Developer.find(:first).name)
end
end
# the nested scope doesn't remove the first :include
Developer.with_scope(:find => { :joins => :projects, :conditions => "projects.id = 2" }) do
Developer.with_scope(:find => { :joins => [] }) do
assert_equal 1, Developer.instance_eval('current_scoped_methods')[:find][:ar_joins].length
assert_equal('David', Developer.find(:first).name)
end
end
# mixing array and symbol include's will merge correctly
Developer.with_scope(:find => { :joins => [:projects], :conditions => "projects.id = 2" }) do
Developer.with_scope(:find => { :joins => :projects }) do
assert_equal 1, Developer.instance_eval('current_scoped_methods')[:find][:ar_joins].length
assert_equal('David', Developer.find(:first).name)
end
end
end
def test_nested_scoped_find_replace_include
Developer.with_scope(:find => { :joins => :projects }) do
Developer.with_exclusive_scope(:find => { :joins => [] }) do
assert_equal 0, Developer.instance_eval('current_scoped_methods')[:find][:ar_joins].length
end
end
end
#
# Calculations
#
def test_count_with_ar_joins
assert_equal(2, Author.count(:joins => :posts, :conditions => ['posts.type = ?', "Post"]))
assert_equal(1, Author.count(:joins => :posts, :conditions => ['posts.type = ?', "SpecialPost"]))
end
def test_should_get_maximum_of_field_with_joins
assert_equal 50, Account.maximum(:credit_limit, :joins=> :firm, :conditions => "companies.name != 'Summit'")
end
def test_should_get_maximum_of_field_with_scoped_include
Account.with_scope :find => { :joins => :firm, :conditions => "companies.name != 'Summit'" } do
assert_equal 50, Account.maximum(:credit_limit)
end
end
def test_should_not_modify_options_when_using_ar_joins_on_count
options = {:conditions => 'companies.id > 1', :joins => :firm}
options_copy = options.dup
Account.count(:all, options)
assert_equal options_copy, options
end
end
