Generation Gap Pattern on CakePHP4 2022.09.30 CakeFest 2022.09.30 CakeFest

Speaker Biography Yuki Kanazawa - Lancers, Inc. / Site Reliability Engineer (2013/11 -) - Live in Sapporo, Japan - Github：yKanazawa - Twitter: @yakitori009 - Language: C++, Java, PHP, Go - Hobby: Shogi(Japanese Chess) 2022.09.30 CakeFest

About Lancers 2022.09.30 CakeFest

About Lancers Pioneer of "freelance platform" in Japan Basic Crowdsourcing Model Global Crowdsourcing Player Management Resources Openness Corporation （Client） Flexible working styles Person （Lancer） 2015 2009 2008 Work or Delivery Escrow payment Upwork Elance+ODesk Freelancer.com Elance 1998 ODesk 2004 2022.09.30 CakeFest

Service Map For Freelancers Services For Clients Services Mentoring Job Matching Education Placement Consulting 2022.09.30 CakeFest

https://www.lancers.jp/ Upgrade History 2022.09.30 CakeFest

Upgrade History ( https://www.lancers.jp/ ) 1.3 → 2.8 2.8 → 2.10 2.10→ 4.x .. more 5.3 → 5.6 5.6 → 7.3 1.7 year PHP5.6 requires CakePHP2.10 requires PHP7.3 requires 1.8 month 1 day 2 months Ongoing 1.3 5.3 + 2017/06/06 2019/02/05 2019/03/27 2019/03/28 2019/05/28 2022.09.30 CakeFest

Lancers Servers（2019） PHP7.3 CakePHP2.10 lancers PHP7.3 CakePHP2.10 lancers PHP7.3 CakePHP2.10 lancers EC2 instance CloudFront Route 53 ALB Auto Scaling App Aurora Reader Aurora Reader Aurora Writer Service Batch MySQL5.7 ALB Admin Admin Console Same Repository S3 CloudFront API Gateway Lambda Thumbnail ElastiCache Redis 2022.09.30 CakeFest

Separate repository and rebuild with CakePHP4 PHP7.3 CakePHP4 Lancers_admin PHP7.3 CakePHP2.10 lancers PHP7.3 CakePHP4 Lancers_batch EC2 instance CloudFront Route 53 ALB Auto Scaling App Aurora Reader Aurora Reader Aurora Writer Service Batch MySQL5.7 ALB Admin Admin Console S3 CloudFront API Gateway Lambda Thmbnail ElastiCache Redis New development with CakePHP4 New development with CakePHP4 2022.09.30 CakeFest

Migration to containers（2022-） PHP8.1 CakePHP4.3 PHP7.3 CakePHP2.10 PHP8.1 CakePHP4.3 EC2 instance CloudFront Route 53 ALB Auto Scaling App Aurora Reader Aurora Reader Aurora Writer Service Batch (Scheduling Task) ALB Admin Admin Console Fargate CloudWatch Logs Transferred by AWS Logs Kinesis Firehose S3 CloudFront API Gateway Lambda Thmbnail ElastiCache Redis Deploy 2022.09.30 CakeFest

UpGrade Progress (admin, batch) Progress admin CakePHP4 75% batch CakePHP4 50% main CakePHP2 ・Migration from main repository to admin and batch repositories on migration 2022.09.30 CakeFest

What is Generation Gap Pattern? 2022.09.30 CakeFest

What is Generation Gap Pattern? ・A kind of design pattern ・Patterns that assume automatic source code generation tools ・Designs that can be automatically generated again after design changes 2022.09.30 CakeFest

Examples of automatic source code generation tools ・Visual Studio Wizard ・GitHub Copilot ・Ruby on rails rails generate ・Laravel artisan ・CakePHP bake and more.. 2022.09.30 CakeFest

What is Generation Gap Pattern? ・Automatic source generator generates only superclass sources ・The programmer creates only its subclasses ・Instantiate only subclasses ・Subclasses inherit, override, or add new methods to superclass methods ・The auto-generator does not change the interface (API) used from the subclass. ・The automatic generation tool does not change the Template Method either. 2022.09.30 CakeFest

Conditions for Generation Gap Pattern on CakePHP4 2022.09.30 CakeFest

Model generated by executing bake + config + src + Controller + Lib + Model + Entity + User.php + Table + UserTable.php + tests + Fixture + UsersFixture.php + TestCase + Model + Table + UserTableTest.php + vendor + webroot Entity User Table UsersTable Bake DB Table structure 2022.09.30 CakeFest

Additional implementation in the generated model + config + src + Controller + Lib + Model + Entity + User.php + Table + UserTable.php + tests + Fixture + UsersFixture.php + TestCase + Model + Table + UserTableTest.php + vendor + webroot Entity User Table UsersTable implement DB Bake 2022.09.30 CakeFest

Add columns to the database tables + config + src + Controller + Lib + Model + Entity + User.php + Table + UserTable.php + tests + Fixture + UsersFixture.php + TestCase + Model + Table + UserTableTest.php + vendor + webroot Entity User Table UsersTable Bake DB ALTER TABLE 2022.09.30 CakeFest

We want to reflect the updated results, but... + config + src + Controller + Lib + Model + Entity + User.php + Table + UserTable.php + tests + Fixture + UsersFixture.php + TestCase + Model + Table + UserTableTest.php + vendor + webroot Entity User Table UsersTable Bake DB Updated Table structure Implementation is lost 2022.09.30 CakeFest ALTER TABLE

Generation Gap Pattern on CakePHP4 2022.09.30 CakeFest

News: New bake updates ( --updates option) 2022.09.30 CakeFest

Interleave superclass for auto-generation + config + src + Controller + Lib + Model + Baked + Entity + User.php + Table + UserTable.php + Entity + User.php + Table + UserTable.php + tests + Fixture + UserFixture.php + TestCase + Model + Table + UserTableTest.php + vendor + webroot Entity Baked¥User Table Baked¥UsersTable User UsersTable Bake DB Table structure 2022.09.30 CakeFest

Inherit from auto-generated superclass + config + src + Controller + Lib + Model + Baked + Entity + User.php + Table + UserTable.php + Entity + User.php + Table + UserTable.php + tests + Fixture + UserFixture.php + TestCase + Model + Table + UserTableTest.php + vendor + webroot

Additional implementation in inherited classes + config + src + Controller + Lib + Model + Baked + Entity + User.php + Table + UserTable.php + Entity + User.php + Table + UserTable.php + tests + Fixture + UserFixture.php + TestCase + Model + Table + UserTableTest.php + vendor + webroot Entity Baked¥User Table Baked¥UsersTable User UsersTable implement DB Bake 2022.09.30 CakeFest

Database(Table) is updated + config + src + Controller + Lib + Model + Baked + Entity + User.php + Table + UserTable.php + Entity + User.php + Table + UserTable.php + tests + Fixture + UserFixture.php + TestCase + Model + Table + UserTableTest.php + vendor + webroot Entity Baked¥User Table Baked¥UsersTable User UsersTable Bake DB implement Bake DB ALTER TABLE 2022.09.30 CakeFest

Reflects updated results in superclass + config + src + Controller + Lib + Model + Baked + Entity + User.php + Table + UserTable.php + Entity + User.php + Table + UserTable.php + tests + Fixture + UserFixture.php + TestCase + Model + Table + UserTableTest.php + vendor + webroot Entity Baked¥User Table Baked¥UsersTable User UsersTable Bake DB implement Bake DB Updated Table structure 2022.09.30 CakeFest ALTER TABLE

Introduce Plugin 2022.09.30 CakeFest

Plugin for Generation Gap Pattern on CakePHP4 ・lancers/cakephp- generation-gap-pattern- model-baker 2022.09.30 CakeFest

Diff of default and plugin behavior + config + src + Controller + Lib + Model + Baked + Entity + User.php + Table + UserTable.php + Entity + Table + tests + Fixture + UserFixture.php + TestCase + Model + Table + UserTableTest.php + vendor + webroot $ ./bin/cake bake extended_model users + config + src + Controller + Lib + Model + Entity + User.php + Table + UserTable.php + tests + Fixture + UserFixture.php + TestCase + Model + Table + UserTableTest.php + vendor + webroot $ ./bin/cake bake model users 2022.09.30 CakeFest

New bake updates 2022.09.30 CakeFest

New bake updates only table structure! ・In Bake 2.8.0-RC1 2022.09.30 CakeFest