diff options
Diffstat (limited to 'activerecord/test/cases/relations_test.rb')
| -rw-r--r-- | activerecord/test/cases/relations_test.rb | 281 |
1 files changed, 202 insertions, 79 deletions
diff --git a/activerecord/test/cases/relations_test.rb b/activerecord/test/cases/relations_test.rb index 95408a5f29..4a56ae0d23 100644 --- a/activerecord/test/cases/relations_test.rb +++ b/activerecord/test/cases/relations_test.rb @@ -4,11 +4,11 @@ require 'models/tagging' 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/reply' require 'models/company' require 'models/bird' require 'models/car' @@ -133,6 +133,13 @@ class RelationTest < ActiveRecord::TestCase assert topics.loaded? end + def test_finiding_with_subquery + relation = Topic.where(:approved => true) + assert_equal relation.to_a, Topic.select('*').from(relation).to_a + assert_equal relation.to_a, Topic.select('subquery.*').from(relation).to_a + assert_equal relation.to_a, Topic.select('a.*').from(relation, :a).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) @@ -184,12 +191,12 @@ class RelationTest < ActiveRecord::TestCase end def test_finding_with_complex_order_and_limit - tags = Tag.includes(:taggings).order("REPLACE('abc', taggings.taggable_type, taggings.taggable_type)").limit(1).to_a + tags = Tag.includes(:taggings).references(:taggings).order("REPLACE('abc', taggings.taggable_type, taggings.taggable_type)").limit(1).to_a assert_equal 1, tags.length end def test_finding_with_complex_order - tags = Tag.includes(:taggings).order("REPLACE('abc', taggings.taggable_type, taggings.taggable_type)").to_a + tags = Tag.includes(:taggings).references(:taggings).order("REPLACE('abc', taggings.taggable_type, taggings.taggable_type)").to_a assert_equal 3, tags.length end @@ -215,6 +222,52 @@ class RelationTest < ActiveRecord::TestCase assert_equal [2, 4, 6, 8, 10], even_ids.sort end + def test_none + assert_no_queries do + assert_equal [], Developer.none + assert_equal [], Developer.scoped.none + assert Developer.none.is_a?(ActiveRecord::NullRelation) + end + end + + def test_none_chainable + assert_no_queries do + assert_equal [], Developer.none.where(:name => 'David') + end + end + + def test_none_chained_to_methods_firing_queries_straight_to_db + assert_no_queries do + assert_equal [], Developer.none.pluck(:id) # => uses select_all + assert_equal 0, Developer.none.delete_all + assert_equal 0, Developer.none.update_all(:name => 'David') + assert_equal 0, Developer.none.delete(1) + assert_equal false, Developer.none.exists?(1) + end + end + + def test_null_relation_content_size_methods + assert_no_queries do + assert_equal 0, Developer.none.size + assert_equal 0, Developer.none.count + assert_equal true, Developer.none.empty? + assert_equal false, Developer.none.any? + assert_equal false, Developer.none.many? + end + end + + def test_null_relation_calculations_methods + assert_no_queries do + assert_equal 0, Developer.none.count + assert_equal nil, Developer.none.calculate(:average, 'salary') + end + end + + def test_null_relation_metadata_methods + assert_equal "", Developer.none.to_sql + assert_equal({}, Developer.none.where_values_hash) + end + def test_joins_with_nil_argument assert_nothing_raised { DependentFirm.joins(nil).first } end @@ -236,7 +289,7 @@ class RelationTest < ActiveRecord::TestCase end def test_find_on_hash_conditions - assert_equal Topic.find(:all, :conditions => {:approved => false}), Topic.where({ :approved => false }).to_a + assert_equal Topic.scoped(:where => {:approved => false}).all, Topic.where({ :approved => false }).to_a end def test_joins_with_string_array @@ -284,7 +337,6 @@ class RelationTest < ActiveRecord::TestCase end def test_respond_to_class_methods_and_scopes - assert DeveloperOrderedBySalary.scoped.respond_to?(:all_ordered_by_name) assert Topic.scoped.respond_to?(:by_lifo) end @@ -310,7 +362,7 @@ class RelationTest < ActiveRecord::TestCase assert posts.first.comments.first end - assert_queries(ActiveRecord::IdentityMap.enabled? ? 1 : 2) do + assert_queries(2) do posts = Post.preload(:comments).order('posts.id') assert posts.first.comments.first end @@ -320,12 +372,12 @@ class RelationTest < ActiveRecord::TestCase assert posts.first.author end - assert_queries(ActiveRecord::IdentityMap.enabled? ? 1 : 2) do + assert_queries(2) do posts = Post.preload(:author).order('posts.id') assert posts.first.author end - assert_queries(ActiveRecord::IdentityMap.enabled? ? 1 : 3) do + assert_queries(3) do posts = Post.preload(:author, :comments).order('posts.id') assert posts.first.author assert posts.first.comments.first @@ -338,7 +390,7 @@ class RelationTest < ActiveRecord::TestCase assert posts.first.comments.first end - assert_queries(ActiveRecord::IdentityMap.enabled? ? 1 : 2) do + assert_queries(2) do posts = Post.scoped.includes(:comments).order('posts.id') assert posts.first.comments.first end @@ -348,7 +400,7 @@ class RelationTest < ActiveRecord::TestCase assert posts.first.author end - assert_queries(ActiveRecord::IdentityMap.enabled? ? 1 : 3) do + assert_queries(3) do posts = Post.includes(:author, :comments).order('posts.id') assert posts.first.author assert posts.first.comments.first @@ -356,18 +408,18 @@ class RelationTest < ActiveRecord::TestCase 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 Developer.where(name: 'David').map(&:id).sort, DeveloperCalledDavid.scoped.map(&:id).sort assert_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 Developer.where(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 + assert_equal Developer.where(name: 'David').map(&:id).sort, developers end def test_loading_with_one_association @@ -391,15 +443,6 @@ class RelationTest < ActiveRecord::TestCase assert_equal Post.find(1).last_comment, post.last_comment end - def test_dynamic_find_by_attributes_should_yield_found_object - david = authors(:david) - yielded_value = nil - Author.find_by_name(david.name) do |author| - yielded_value = author - end - assert_equal david, yielded_value - end - def test_dynamic_find_by_attributes david = authors(:david) author = Author.preload(:taggings).find_by_id(david.id) @@ -421,34 +464,6 @@ class RelationTest < ActiveRecord::TestCase assert_raises(ActiveRecord::RecordNotFound) { Author.scoped.find_by_id_and_name!(20, 'invalid') } end - def test_dynamic_find_all_by_attributes - authors = Author.scoped - - davids = authors.find_all_by_name('David') - assert_kind_of Array, davids - assert_equal [authors(:david)], davids - end - - def test_dynamic_find_or_initialize_by_attributes - authors = Author.scoped - - lifo = authors.find_or_initialize_by_name('Lifo') - assert_equal "Lifo", lifo.name - assert !lifo.persisted? - - assert_equal authors(:david), authors.find_or_initialize_by_name(:name => 'David') - end - - def test_dynamic_find_or_create_by_attributes - authors = Author.scoped - - lifo = authors.find_or_create_by_name('Lifo') - assert_equal "Lifo", lifo.name - assert lifo.persisted? - - assert_equal authors(:david), authors.find_or_create_by_name(:name => 'David') - end - def test_find_id authors = Author.scoped @@ -587,6 +602,7 @@ class RelationTest < ActiveRecord::TestCase assert ! davids.exists?(authors(:mary).id) assert ! davids.exists?("42") assert ! davids.exists?(42) + assert ! davids.exists?(davids.new) fake = Author.where(:name => 'fake author') assert ! fake.exists? @@ -631,6 +647,10 @@ class RelationTest < ActiveRecord::TestCase assert davids.loaded? end + def test_delete_all_limit_error + assert_raises(ActiveRecord::ActiveRecordError) { Author.limit(10).delete_all } + end + def test_select_argument_error assert_raises(ArgumentError) { Developer.select } end @@ -660,10 +680,8 @@ class RelationTest < ActiveRecord::TestCase end def test_relation_merging_with_preload - ActiveRecord::IdentityMap.without do - [Post.scoped.merge(Post.preload(:author)), Post.preload(:author).merge(Post.scoped)].each do |posts| - assert_queries(2) { assert posts.first.author } - end + [Post.scoped.merge(Post.preload(:author)), Post.preload(:author).merge(Post.scoped)].each do |posts| + assert_queries(2) { assert posts.first.author } end end @@ -1004,10 +1022,6 @@ class RelationTest < ActiveRecord::TestCase assert_equal Post.all, all_posts.all end - def test_extensions_with_except - assert_equal 2, Topic.named_extension.order(:author_name).except(:order).two - end - def test_only relation = Post.where(:author_id => 1).order('id ASC').limit(1) assert_equal [posts(:welcome)], relation.all @@ -1019,10 +1033,6 @@ class RelationTest < ActiveRecord::TestCase assert_equal Post.limit(1).all.first, all_posts.first end - def test_extensions_with_only - assert_equal 2, Topic.named_extension.order(:author_name).only(:order).two - end - def test_anonymous_extension relation = Post.where(:author_id => 1).order('id ASC').extending do def author @@ -1044,36 +1054,26 @@ class RelationTest < ActiveRecord::TestCase assert_equal Post.order(Post.arel_table[:title]).all, Post.order("title").all end - def test_order_with_find_with_order - assert_equal 'zyke', CoolCar.order('name desc').find(:first, :order => 'id').name - assert_equal 'zyke', FastCar.order('name desc').find(:first, :order => 'id').name - end - def test_default_scope_order_with_scope_order assert_equal 'zyke', CoolCar.order_using_new_style.limit(1).first.name - assert_equal 'zyke', CoolCar.order_using_old_style.limit(1).first.name assert_equal 'zyke', FastCar.order_using_new_style.limit(1).first.name - assert_equal 'zyke', FastCar.order_using_old_style.limit(1).first.name end def test_order_using_scoping car1 = CoolCar.order('id DESC').scoping do - CoolCar.find(:first, :order => 'id asc') + CoolCar.scoped(:order => 'id asc').first end assert_equal 'zyke', car1.name car2 = FastCar.order('id DESC').scoping do - FastCar.find(:first, :order => 'id asc') + FastCar.scoped(:order => 'id asc').first end assert_equal 'zyke', car2.name end def test_unscoped_block_style assert_equal 'honda', CoolCar.unscoped { CoolCar.order_using_new_style.limit(1).first.name} - assert_equal 'honda', CoolCar.unscoped { CoolCar.order_using_old_style.limit(1).first.name} - assert_equal 'honda', FastCar.unscoped { FastCar.order_using_new_style.limit(1).first.name} - assert_equal 'honda', FastCar.unscoped { FastCar.order_using_old_style.limit(1).first.name} end def test_intersection_with_array @@ -1084,10 +1084,6 @@ class RelationTest < ActiveRecord::TestCase assert_equal [rails_author], relation & [rails_author] end - def test_removing_limit_with_options - assert_not_equal 1, Post.limit(1).all(:limit => nil).count - end - def test_primary_key assert_equal "id", Post.scoped.primary_key end @@ -1104,7 +1100,9 @@ class RelationTest < ActiveRecord::TestCase ) ) - assert scope.eager_loading? + assert_deprecated do + assert scope.eager_loading? + end end def test_ordering_with_extra_spaces @@ -1148,4 +1146,129 @@ class RelationTest < ActiveRecord::TestCase assert_equal posts(:thinking), comments(:more_greetings).post assert_equal posts(:welcome), comments(:greetings).post end + + def test_uniq + tag1 = Tag.create(:name => 'Foo') + tag2 = Tag.create(:name => 'Foo') + + query = Tag.select(:name).where(:id => [tag1.id, tag2.id]) + + assert_equal ['Foo', 'Foo'], query.map(&:name) + assert_sql(/DISTINCT/) do + assert_equal ['Foo'], query.uniq.map(&:name) + end + assert_sql(/DISTINCT/) do + assert_equal ['Foo'], query.uniq(true).map(&:name) + end + assert_equal ['Foo', 'Foo'], query.uniq(true).uniq(false).map(&:name) + end + + def test_references_triggers_eager_loading + scope = Post.includes(:comments) + assert !scope.eager_loading? + assert scope.references(:comments).eager_loading? + end + + def test_references_doesnt_trigger_eager_loading_if_reference_not_included + scope = Post.references(:comments) + assert !scope.eager_loading? + end + + def test_automatically_added_where_references + scope = Post.where(:comments => { :body => "Bla" }) + assert_equal ['comments'], scope.references_values + + scope = Post.where('comments.body' => 'Bla') + assert_equal ['comments'], scope.references_values + end + + def test_automatically_added_having_references + scope = Post.having(:comments => { :body => "Bla" }) + assert_equal ['comments'], scope.references_values + + scope = Post.having('comments.body' => 'Bla') + assert_equal ['comments'], scope.references_values + end + + def test_automatically_added_order_references + scope = Post.order('comments.body') + assert_equal ['comments'], scope.references_values + + scope = Post.order('comments.body', 'yaks.body') + assert_equal ['comments', 'yaks'], scope.references_values + + # Don't infer yaks, let's not go down that road again... + scope = Post.order('comments.body, yaks.body') + assert_equal ['comments'], scope.references_values + + scope = Post.order('comments.body asc') + assert_equal ['comments'], scope.references_values + + scope = Post.order('foo(comments.body)') + assert_equal [], scope.references_values + end + + def test_presence + topics = Topic.scoped + + # the first query is triggered because there are no topics yet. + assert_queries(1) { assert topics.present? } + + # checking if there are topics is used before you actually display them, + # thus it shouldn't invoke an extra count query. + assert_no_queries { assert topics.present? } + assert_no_queries { assert !topics.blank? } + + # shows count of topics and loops after loading the query should not trigger extra queries either. + assert_no_queries { topics.size } + assert_no_queries { topics.length } + assert_no_queries { topics.each } + + # count always trigger the COUNT query. + assert_queries(1) { topics.count } + + assert topics.loaded? + end + + test "find_by with hash conditions returns the first matching record" do + assert_equal posts(:eager_other), Post.order(:id).find_by(author_id: 2) + end + + test "find_by with non-hash conditions returns the first matching record" do + assert_equal posts(:eager_other), Post.order(:id).find_by("author_id = 2") + end + + test "find_by with multi-arg conditions returns the first matching record" do + assert_equal posts(:eager_other), Post.order(:id).find_by('author_id = ?', 2) + end + + test "find_by returns nil if the record is missing" do + assert_equal nil, Post.scoped.find_by("1 = 0") + end + + test "find_by doesn't have implicit ordering" do + assert_sql(/^((?!ORDER).)*$/) { Post.find_by(author_id: 2) } + end + + test "find_by! with hash conditions returns the first matching record" do + assert_equal posts(:eager_other), Post.order(:id).find_by!(author_id: 2) + end + + test "find_by! with non-hash conditions returns the first matching record" do + assert_equal posts(:eager_other), Post.order(:id).find_by!("author_id = 2") + end + + test "find_by! with multi-arg conditions returns the first matching record" do + assert_equal posts(:eager_other), Post.order(:id).find_by!('author_id = ?', 2) + end + + test "find_by! doesn't have implicit ordering" do + assert_sql(/^((?!ORDER).)*$/) { Post.find_by!(author_id: 2) } + end + + test "find_by! raises RecordNotFound if the record is missing" do + assert_raises(ActiveRecord::RecordNotFound) do + Post.scoped.find_by!("1 = 0") + end + end end |