require "cases/helper" require 'models/post' require 'models/topic' require 'models/comment' require 'models/reply' require 'models/author' require 'models/comment' require 'models/entrant' require 'models/developer' require 'models/company' class RelationTest < ActiveRecord::TestCase fixtures :authors, :topics, :entrants, :developers, :companies, :developers_projects, :accounts, :categories, :categorizations, :posts, :comments def test_scoped topics = Topic.scoped assert_kind_of ActiveRecord::Relation, topics assert_equal 4, topics.size end def test_scoped_all topics = Topic.scoped.all assert_kind_of Array, topics assert_no_queries { assert_equal 4, topics.size } end def test_loaded_all topics = Topic.scoped assert_queries(1) do 2.times { assert_equal 4, topics.all.size } end assert topics.loaded? end def test_scoped_first topics = Topic.scoped assert_queries(1) do 2.times { assert_equal "The First Topic", topics.first.title } end assert ! topics.loaded? end def test_loaded_first topics = Topic.scoped assert_queries(1) do topics.all # force load 2.times { assert_equal "The First Topic", topics.first.title } end assert topics.loaded? end def test_reload topics = Topic.scoped assert_queries(1) do 2.times { topics.to_a } end assert topics.loaded? topics.reload assert ! topics.loaded? assert_queries(1) { topics.to_a } end def test_finding_with_conditions assert_equal ["David"], Author.where(:name => 'David').map(&:name) assert_equal ['Mary'], Author.where(["name = ?", 'Mary']).map(&:name) assert_equal ['Mary'], Author.where("name = ?", 'Mary').map(&:name) end def test_finding_with_order topics = Topic.order('id') assert_equal 4, topics.size assert_equal topics(:first).title, topics.first.title end def test_finding_with_order_and_take entrants = Entrant.order("id ASC").limit(2).to_a assert_equal 2, entrants.size assert_equal entrants(:first).name, entrants.first.name end def test_finding_with_order_limit_and_offset entrants = Entrant.order("id ASC").limit(2).offset(1) assert_equal 2, entrants.size assert_equal entrants(:second).name, entrants.first.name entrants = Entrant.order("id ASC").limit(2).offset(2) assert_equal 1, entrants.size assert_equal entrants(:third).name, entrants.first.name end def test_finding_with_group developers = Developer.group("salary").select("salary").to_a assert_equal 4, developers.size assert_equal 4, developers.map(&:salary).uniq.size end def test_finding_with_hash_conditions_on_joined_table firms = DependentFirm.joins(:account).where({:name => 'RailsCore', :accounts => { :credit_limit => 55..60 }}).to_a assert_equal 1, firms.size assert_equal companies(:rails_core), firms.first end def test_find_all_with_join developers_on_project_one = Developer.joins('LEFT JOIN developers_projects ON developers.id = developers_projects.developer_id'). where('project_id=1').to_a assert_equal 3, developers_on_project_one.length developer_names = developers_on_project_one.map { |d| d.name } assert developer_names.include?('David') assert developer_names.include?('Jamis') end def test_find_on_hash_conditions assert_equal Topic.find(:all, :conditions => {:approved => false}), Topic.where({ :approved => false }).to_a end def test_joins_with_string_array person_with_reader_and_post = Post.joins([ "INNER JOIN categorizations ON categorizations.post_id = posts.id", "INNER JOIN categories ON categories.id = categorizations.category_id AND categories.type = 'SpecialCategory'" ] ).to_a assert_equal 1, person_with_reader_and_post.size end def test_scoped_responds_to_delegated_methods relation = Topic.scoped ["map", "uniq", "sort", "insert", "delete", "update"].each do |method| assert relation.respond_to?(method), "Topic.all should respond to #{method.inspect}" end end def test_find_with_readonly_option Developer.scoped.each { |d| assert !d.readonly? } Developer.scoped.readonly.each { |d| assert d.readonly? } end def test_eager_association_loading_of_stis_with_multiple_references authors = Author.eager_load(:posts => { :special_comments => { :post => [ :special_comments, :very_special_comment ] } }). order('comments.body, very_special_comments_posts.body').where('posts.id = 4').to_a assert_equal [authors(:david)], authors assert_no_queries do authors.first.posts.first.special_comments.first.post.special_comments authors.first.posts.first.special_comments.first.post.very_special_comment end end def test_find_with_included_associations assert_queries(2) do posts = Post.preload(:comments) assert posts.first.comments.first end assert_queries(2) do posts = Post.preload(:comments).to_a assert posts.first.comments.first end assert_queries(2) do posts = Post.preload(:author) assert posts.first.author end assert_queries(2) do posts = Post.preload(:author).to_a assert posts.first.author end assert_queries(3) do posts = Post.preload(:author, :comments).to_a assert posts.first.author assert posts.first.comments.first end end def test_default_scope_with_conditions_string assert_equal Developer.find_all_by_name('David').map(&:id).sort, DeveloperCalledDavid.scoped.map(&:id).sort assert_equal nil, DeveloperCalledDavid.create!.name end def test_default_scope_with_conditions_hash assert_equal Developer.find_all_by_name('Jamis').map(&:id).sort, DeveloperCalledJamis.scoped.map(&:id).sort assert_equal 'Jamis', DeveloperCalledJamis.create!.name end def test_default_scoping_finder_methods developers = DeveloperCalledDavid.order('id').map(&:id).sort assert_equal Developer.find_all_by_name('David').map(&:id).sort, developers end def test_loading_with_one_association posts = Post.preload(:comments) post = posts.find { |p| p.id == 1 } assert_equal 2, post.comments.size assert post.comments.include?(comments(:greetings)) post = Post.where("posts.title = 'Welcome to the weblog'").preload(:comments).first assert_equal 2, post.comments.size assert post.comments.include?(comments(:greetings)) posts = Post.preload(:last_comment) post = posts.find { |p| p.id == 1 } assert_equal Post.find(1).last_comment, post.last_comment end def test_loading_with_one_association_with_non_preload posts = Post.eager_load(:last_comment).order('comments.id DESC') post = posts.find { |p| p.id == 1 } assert_equal Post.find(1).last_comment, post.last_comment end end