@@ -63,6 +63,11 @@ module StaticModel records[0] end alias_method :first, :find_first + + def find_last + records[records.length-1] + end + alias_method :last, :find_last def find_all_by(attribute, value) records.find_all {|r| r.send(attribute) == value } @@ -72,6 +77,11 @@ module StaticModel records.find {|r| r.send(attribute) == value } end alias_method :find_by, :find_first_by + + def find_last_by(attribute, value) + records.find {|r| r.send(attribute) == value } + end + alias_method :find_by, :find_last_by def load(reload = false) return if loaded? && !reload @@ -153,8 +163,8 @@ module StaticModel private def method_missing(meth, *args) meth_name = meth.to_s - if meth_name =~ /^find_(all_by|first_by|by)_(.+)/ - attribute_name = meth_name.gsub(/^find_(all_by|first_by|by)_/, '') + if meth_name =~ /^find_(all_by|first_by|last_by|by)_(.+)/ + attribute_name = meth_name.gsub(/^find_(all_by|first_by|last_by|by)_/, '') finder = meth_name.gsub(/_#{attribute_name}/, '') return self.send(finder, attribute_name, *args) elsif class_attributes.has_key? meth_name lib/static_model/base.rb @@ -1,427 +1,472 @@ -require File.dirname(__FILE__) + '/test_helper.rb' - -class TestStaticModel < Test::Unit::TestCase - - context "StaticModel" do - context "A class that inherits from Base" do - context "an instance" do - - setup do - @book = Book.new(book_params) - end - - context "initialization" do - - should "set attributes with a hash" do - assert @book.id - end - - should "raise error if passed anything but hash" do - assert_raise(StaticModel::BadOptions) do - Book.new("im bad") - end - end - end - - context "attributes" do - should "get attributes by methods" do - assert_equal book_params[:title], @book.title - assert_equal book_params[:genre], @book.genre - end - - should "set attributes by methods" do - @book.title = 'New Title' - assert_equal 'New Title', @book.title - end - end - - context "to_s" do - should "inspect" do - assert_equal @book.inspect, @book.to_s - end - end - - context "comparing" do - - should "be equal to an instance of the same class with same id" do - assert_equal @book, Book.new(book_params) - end - - should "not be equal to an instance with the same class with different ids" do - assert_not_equal Book[1], @book - end - - should "not be equal to an instance with different classes and the same ids" do - assert_not_equal Book[1], Author[1] - end - end - - end - - context "on the class" do - context "set data file" do - context "After the class is defined" do - - setup do - @book = Book.find(1) - @author = Author.find(1) - @original_data_file = Book.data_file - @data_file = File.join(File.dirname(__FILE__), 'data', 'authors.yml') - Book.set_data_file @data_file - @new_book = Book.find(1) - end - - should "set the @data_file" do - assert_equal @data_file, Book.data_file - end - - should "reload with next find" do - assert @author.attributes, @new_book.attributes - end - - teardown do - Book.set_data_file @original_data_file - end - end - end - - context "next_id" do - context "if id's were automaticaly assigned" do - should "be length + 1" do - Store.load - assert_equal Store.count + 1, Store.next_id - end - end - - context "if ids were manualy assigned" do - should "be 1 after the last id" do - Publisher.load - assert_equal 8, Publisher.next_id - end - end - end - - context "where the records are defined without ids" do - setup do - Store.reload! - end - - context "loading" do - setup do - @stores = Store.all - end - - should "automaticaly assign ids" do - @stores.each do |store| - assert store.id - assert store.id.is_a?(Fixnum) - end - end - - should "assign next id" do - assert Store.next_id - assert_equal 3, Store.next_id - end - end - - context "initializing without id" do - setup do - @store = Store.new({:name => 'Metro Comics', :city => 'New York'}) - end - - should "return instance" do - assert @store.is_a?(Store) - end - - should "set attributes" do - assert_equal 'New York', @store.city - end - - should "assign id from next id" do - assert_equal 3, @store.id - end - - should "increment next_id" do - assert_equal 4, Store.next_id - end - - end - end - - context "loading a data_file with embedded erb" do - setup do - @projects = Project.all - end - - should "evaluate erb expressions at load time" do - assert_equal 1.day.ago.strftime('%m/%d/%Y %I:%M%p'), @projects.first.created_at - end - - should "evaluate erb in current context" do - assert_equal Author.first, @projects[1].author - end - end - - context "find" do - - context "with an integer" do - setup do - @book = Book.find(1) - end - - should "set loaded?" do - assert Book.loaded? - end - - should "load by id" do - assert_equal 1, @book.id - end - - should "return instance of klass" do - assert @book.is_a?(Book) - end - - should "raise error if cant find record with id" do - assert_raise(StaticModel::RecordNotFound) do - @book = Book.find(1000) - end - end - end - end - - context "[]" do - should "be an alias for find by id" do - assert_equal Book.find(1), Book[1] - end - end - - context "find(:all)" do - should "be an alias for find_all" do - assert_equal Book.find_all, Book.find(:all) - end - end - context "find(:first)" do - should "be an alias for find_first" do - assert_equal Book.find_first, Book.find(:first) - end - end - - context "all" do - should "be an alias for find_all" do - assert_equal Book.all, Book.find(:all) - end - end - context "first" do - should "be an alias for find_first" do - assert_equal Book.first, Book.find(:first) - end - end - - context "find_first" do - setup do - @book = Book.find_first - end - - should "return the first instance from all records" do - assert_equal Book.find_all.first, @book - end - - should "return instance of klass" do - assert @book.is_a?(Book) - end - end - - context "find_all" do - setup do - @books = Book.find_all - end - - should "return an array" do - assert @books.is_a?(Array) - end - - should "return all records" do - assert_equal 4, @books.length - end - - should "return set of klass instances" do - @books.each do |book| - assert book.is_a?(Book) - end - end - - context "with an empty data file" do - setup do - @original_data_file = Book.data_file - @data_file = File.join(File.dirname(__FILE__), 'data', 'empty.yml') - Book.set_data_file @data_file - end - - should "return an empty array" do - assert_equal [], Book.find_all - end - - teardown do - Book.set_data_file @original_data_file - end - - end - end - - context "find_first_by" do - setup do - @author = 'Michael Pollan' - @book = Book.find_first_by(:author,@author) - end - - should "return an instance of klass" do - assert @book.is_a?(Book) - end - - should "return record matching search" do - assert @author, @book.author - end - - context "when there is no match" do - should "return nil" do - assert_nil Book.find_first_by(:author,'Aaron Quint') - end - end - end - - context "find_by" do - setup do - @author = 'Michael Pollan' - @book = Book.find_by(:author,@author) - end - - should "return an instance of klass" do - assert @book.is_a?(Book) - end - - should "return record matching search" do - assert @author, @book.author - end - - context "when there is no match" do - should "return nil" do - assert_nil Book.find_by(:author,'Aaron Quint') - end - end - - end - - context "find_all_by" do - setup do - @author = 'Michael Pollan' - @books = Book.find_all_by(:author,@author) - end - - should "return an array" do - assert @books.is_a?(Array) - end - - should "return all records that match search" do - @books.each {|b| assert_equal @author, b.author} - end - - should "return set of klass instances" do - @books.each {|b| assert b.is_a?(Book) } - end - - context "when there is no match" do - should "return an empty array" do - assert_equal [], Book.find_all_by(:author,'Aaron Quint') - end - end - context "when there is only one match" do - should "return an array" do - assert_equal [Book.find(3)], Book.find_all_by(:author,'Piers Anthony') - end - end - end - - context "dynamic finders" do - setup do - @book = Book.first - end - - context "find_by_*attribute*" do - should "be equivalent to find_first_by(attribute,)" do - assert_equal @book, Book.find_first_by(:genre, 'Non-Fiction') - assert_equal Book.find_first_by(:genre, 'Non-Fiction'), Book.find_by_genre('Non-Fiction') - end - end - - context "find_first_by_*attribute*" do - should "be equivalent to find_first_by(attribute,)" do - assert_equal @book, Book.find_first_by(:genre, 'Non-Fiction') - assert_equal Book.find_first_by(:genre, 'Non-Fiction'), Book.find_first_by_genre('Non-Fiction') - end - end - - context "find_all_by_*attribute*" do - should "be equivalent to find_all_by(attribute,)" do - assert_equal Book.find_all_by(:genre, 'Non-Fiction'), Book.find_all_by_genre('Non-Fiction') - end - end - end - - context "count" do - should "return the count of all records" do - assert_equal Book.all.length, Book.count - end - end - - context "with a class with yaml class vars" do - setup do - @pages = Page.all - end - - should "load :records into @records" do - assert_set_of Page, @pages - assert Page.loaded? - end - - should "give access to top level attributes as class methods" do - assert_equal 'http://www.quirkey.com', Page.url - assert_equal 'The Best Ever', Page.title - end - - should "return a hash for class attribute" do - assert Page.settings.is_a?(Hash) - assert_equal 'test', Page.settings['username'] - end - - should "have class attributes appear as record accessor defaults if none exist" do - assert_equal 'http://www.quirkey.com', Page[1].url - end - - should "not overwrite record specific methods" do - assert_equal 'http://github.com', Page[2].url - end - - context "class_attributes" do - setup do - @attributes = Page.class_attributes - end - - should "return a hash of all top level settings" do - assert @attributes.is_a?(Hash) - assert_equal 3, @attributes.length - assert_equal 'http://www.quirkey.com', @attributes['url'] - end - end - end - - end - end - end - - protected - def book_params - {:id => 15, :title => 'Lord of the Rings', :author => 'J.R. Tolkien', :genre => 'Fantasy'} - end - - -end +require File.dirname(__FILE__) + '/test_helper.rb' + +class TestStaticModel < Test::Unit::TestCase + + context "StaticModel" do + context "A class that inherits from Base" do + context "an instance" do + + setup do + @book = Book.new(book_params) + end + + context "initialization" do + + should "set attributes with a hash" do + assert @book.id + end + + should "raise error if passed anything but hash" do + assert_raise(StaticModel::BadOptions) do + Book.new("im bad") + end + end + end + + context "attributes" do + should "get attributes by methods" do + assert_equal book_params[:title], @book.title + assert_equal book_params[:genre], @book.genre + end + + should "set attributes by methods" do + @book.title = 'New Title' + assert_equal 'New Title', @book.title + end + end + + context "to_s" do + should "inspect" do + assert_equal @book.inspect, @book.to_s + end + end + + context "comparing" do + + should "be equal to an instance of the same class with same id" do + assert_equal @book, Book.new(book_params) + end + + should "not be equal to an instance with the same class with different ids" do + assert_not_equal Book[1], @book + end + + should "not be equal to an instance with different classes and the same ids" do + assert_not_equal Book[1], Author[1] + end + end + + end + + context "on the class" do + context "set data file" do + context "After the class is defined" do + + setup do + @book = Book.find(1) + @author = Author.find(1) + @original_data_file = Book.data_file + @data_file = File.join(File.dirname(__FILE__), 'data', 'authors.yml') + Book.set_data_file @data_file + @new_book = Book.find(1) + end + + should "set the @data_file" do + assert_equal @data_file, Book.data_file + end + + should "reload with next find" do + assert @author.attributes, @new_book.attributes + end + + teardown do + Book.set_data_file @original_data_file + end + end + end + + context "next_id" do + context "if id's were automaticaly assigned" do + should "be length + 1" do + Store.load + assert_equal Store.count + 1, Store.next_id + end + end + + context "if ids were manualy assigned" do + should "be 1 after the last id" do + Publisher.load + assert_equal 8, Publisher.next_id + end + end + end + + context "where the records are defined without ids" do + setup do + Store.reload! + end + + context "loading" do + setup do + @stores = Store.all + end + + should "automaticaly assign ids" do + @stores.each do |store| + assert store.id + assert store.id.is_a?(Fixnum) + end + end + + should "assign next id" do + assert Store.next_id + assert_equal 3, Store.next_id + end + end + + context "initializing without id" do + setup do + @store = Store.new({:name => 'Metro Comics', :city => 'New York'}) + end + + should "return instance" do + assert @store.is_a?(Store) + end + + should "set attributes" do + assert_equal 'New York', @store.city + end + + should "assign id from next id" do + assert_equal 3, @store.id + end + + should "increment next_id" do + assert_equal 4, Store.next_id + end + + end + end + + context "loading a data_file with embedded erb" do + setup do + @projects = Project.all + end + + should "evaluate erb expressions at load time" do + assert_equal 1.day.ago.strftime('%m/%d/%Y %I:%M%p'), @projects.first.created_at + end + + should "evaluate erb in current context" do + assert_equal Author.first, @projects[1].author + end + end + + context "find" do + + context "with an integer" do + setup do + @book = Book.find(1) + end + + should "set loaded?" do + assert Book.loaded? + end + + should "load by id" do + assert_equal 1, @book.id + end + + should "return instance of klass" do + assert @book.is_a?(Book) + end + + should "raise error if cant find record with id" do + assert_raise(StaticModel::RecordNotFound) do + @book = Book.find(1000) + end + end + end + end + + context "[]" do + should "be an alias for find by id" do + assert_equal Book.find(1), Book[1] + end + end + + context "find(:all)" do + should "be an alias for find_all" do + assert_equal Book.find_all, Book.find(:all) + end + end + context "find(:first)" do + should "be an alias for find_first" do + assert_equal Book.find_first, Book.find(:first) + end + end + context "find(:last)" do + should "be an alias for find_last" do + assert_equal Book.find_last, Book.find(:last) + end + end + + context "all" do + should "be an alias for find_all" do + assert_equal Book.all, Book.find(:all) + end + end + context "first" do + should "be an alias for find_first" do + assert_equal Book.first, Book.find(:first) + end + end + context "last" do + should "be an alias for find_last" do + assert_equal Book.last, Book.find(:last) + end + end + + context "find_first" do + setup do + @book = Book.find_first + end + + should "return the first instance from all records" do + assert_equal Book.find_all.first, @book + end + + should "return instance of klass" do + assert @book.is_a?(Book) + end + end + + context "find_last" do + setup do + @book = Book.find_last + end + + should "return the last instance from all records" do + assert_equal Book.find_all.last, @book + end + + should "return an instance of klass" do + assert @book.is_a?(Book) + end + end + + context "find_all" do + setup do + @books = Book.find_all + end + + should "return an array" do + assert @books.is_a?(Array) + end + + should "return all records" do + assert_equal 4, @books.length + end + + should "return set of klass instances" do + @books.each do |book| + assert book.is_a?(Book) + end + end + + context "with an empty data file" do + setup do + @original_data_file = Book.data_file + @data_file = File.join(File.dirname(__FILE__), 'data', 'empty.yml') + Book.set_data_file @data_file + end + + should "return an empty array" do + assert_equal [], Book.find_all + end + + teardown do + Book.set_data_file @original_data_file + end + + end + end + + context "find_first_by" do + setup do + @author = 'Michael Pollan' + @book = Book.find_first_by(:author,@author) + end + + should "return an instance of klass" do + assert @book.is_a?(Book) + end + + should "return record matching search" do + assert @author, @book.author + end + + context "when there is no match" do + should "return nil" do + assert_nil Book.find_first_by(:author,'Aaron Quint') + end + end + end + + context "find_last_by" do + setup do + @author = 'Chuck Palahniuk' + @book = Book.find_last_by(:author, @author) + end + + should "return an instance of klass" do + assert @book.is_a?(Book) + end + + should "return record matching search" do + assert @author, @book.author + end + + context "when there is no match" do + should "return nil" do + assert_nil Book.find_last_by(:author, 'Michael R. Bernstein') + end + end + end + + context "find_by" do + setup do + @author = 'Michael Pollan' + @book = Book.find_by(:author,@author) + end + + should "return an instance of klass" do + assert @book.is_a?(Book) + end + + should "return record matching search" do + assert @author, @book.author + end + + context "when there is no match" do + should "return nil" do + assert_nil Book.find_by(:author,'Aaron Quint') + end + end + + end + + context "find_all_by" do + setup do + @author = 'Michael Pollan' + @books = Book.find_all_by(:author,@author) + end + + should "return an array" do + assert @books.is_a?(Array) + end + + should "return all records that match search" do + @books.each {|b| assert_equal @author, b.author} + end + + should "return set of klass instances" do + @books.each {|b| assert b.is_a?(Book) } + end + + context "when there is no match" do + should "return an empty array" do + assert_equal [], Book.find_all_by(:author,'Aaron Quint') + end + end + context "when there is only one match" do + should "return an array" do + assert_equal [Book.find(3)], Book.find_all_by(:author,'Piers Anthony') + end + end + end + + context "dynamic finders" do + setup do + @book = Book.first + end + + context "find_by_*attribute*" do + should "be equivalent to find_first_by(attribute,)" do + assert_equal @book, Book.find_first_by(:genre, 'Non-Fiction') + assert_equal Book.find_first_by(:genre, 'Non-Fiction'), Book.find_by_genre('Non-Fiction') + end + end + + context "find_first_by_*attribute*" do + should "be equivalent to find_first_by(attribute,)" do + assert_equal @book, Book.find_first_by(:genre, 'Non-Fiction') + assert_equal Book.find_first_by(:genre, 'Non-Fiction'), Book.find_first_by_genre('Non-Fiction') + end + end + + context "find_all_by_*attribute*" do + should "be equivalent to find_all_by(attribute,)" do + assert_equal Book.find_all_by(:genre, 'Non-Fiction'), Book.find_all_by_genre('Non-Fiction') + end + end + end + + context "count" do + should "return the count of all records" do + assert_equal Book.all.length, Book.count + end + end + + context "with a class with yaml class vars" do + setup do + @pages = Page.all + end + + should "load :records into @records" do + assert_set_of Page, @pages + assert Page.loaded? + end + + should "give access to top level attributes as class methods" do + assert_equal 'http://www.quirkey.com', Page.url + assert_equal 'The Best Ever', Page.title + end + + should "return a hash for class attribute" do + assert Page.settings.is_a?(Hash) + assert_equal 'test', Page.settings['username'] + end + + should "have class attributes appear as record accessor defaults if none exist" do + assert_equal 'http://www.quirkey.com', Page[1].url + end + + should "not overwrite record specific methods" do + assert_equal 'http://github.com', Page[2].url + end + + context "class_attributes" do + setup do + @attributes = Page.class_attributes + end + + should "return a hash of all top level settings" do + assert @attributes.is_a?(Hash) + assert_equal 3, @attributes.length + assert_equal 'http://www.quirkey.com', @attributes['url'] + end + end + end + + end + end + end + + protected + def book_params + {:id => 15, :title => 'Lord of the Rings', :author => 'J.R. Tolkien', :genre => 'Fantasy'} + end + + +end test/test_static_model.rb 2d2d1dfa580a325185d1c6fa3aa3e8600cf7d23c mrb mmbernstein@clinic-it.com http://github.com/quirkey/static_model/commit/78535d836839ac57269e8f576312cb67797ff6f6 78535d836839ac57269e8f576312cb67797ff6f6 2008-12-11T15:08:06-08:00 2008-12-11T15:08:06-08:00 Added method for Model.last 19977a13be8ce9a31e53ec013ff017906a5d93f9 mrb mmbernstein@clinic-it.com