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Towards Data Integrity: Validations and Behaviors in CakePHP 3.0

 

Validation
Let us consider “validation” in a little more detail to see how it has been implemented and optimized in CakePHP 3.0. In addition to what we discussed in the earlier sections, validation now incorporates two complementary conceptions or areas. These include 1) data type and format validation and 2) Application rules.

1. Data Type and Format Validation

This part of the validation deals structural aspects such as data type, format validation, and basic types. Unlike in previous versions, validation is applied before ORM entities are created. This is a very useful feature that ensures everything is totally in sync and set in a way that preserves data integrity and the overall stability of the entire application. Moreover, it markedly reduces application errors and inconsistencies throughout the system. It is therefore a significant enhancement over previous versions.

2. Application Rules

Application rules are the second component of validation in CakePHP 3.0 implementation. They play a key role in quality control to ensure that all application rules and workflows are operating in an orderly and systematic fashion. This is implemented through buildRules() method in tables. Here is a code example that uses buildRules() method for articles table.

// In src/Model/Table/ArticlesTable.php

namespace App\Model\Table;

use Cake\ORM\Table;
use Cake\ORM\RulesChecker;

class Articles extends Table
{
    public function buildRules(RulesChecker $rules)
    {
        $rules->add($rules->existsIn('user_id', 'Users'));
        $rules->add(
            function ($article, $options) {
                return ($article->published && empty($article->reviewer));
            },
            'isReviewed', [
                'errorField' => 'published',
                'message' => 'Articles must be reviewed before publishing.'
            ]
        );
        return $rules;
    }
}

Identifier Quoting

Identifier quoting is another CakePHP feature or process that has changed in CakePHP 3.0. In the new release, quoted identifiers, which were expensive and involved a notoriously error-prone process of parsing SQL snippets has been disabled by default - thereby removing a major source of frustration for developers. The only time you may want to enable identifier quoting is when working with column names or table names with special characters or reserved words. Here is how to enable identifier quoting when configuring a connection.

// In config/app.php

'Datasources' => [
    'default' => [
        'className' => 'Cake\Database\Driver\Mysql',
        'username' => 'root',
        'password' => 'super_secret',
        'host' => 'localhost',
        'database' => 'cakephp',
        'quoteIdentifiers' => true
    ]
],


Note: Identifiers in QueryExpression objects require manual quoting or IdentifierExpression objects.

 

Updating Behaviors

Let us now turn to behaviors. As with most features that has to do with ORM, the way behaviors are setup and configured has evolved for smooth integration with the new framework. Among other things, behaviors now attach to table instances. Here are some other significant differences in the way behaviors are handled in CakePHP as compared to earlier versions.

1. Each table that uses a behavior will have its own instance. No storing of “name space” setting in a behavior is required.

2. Method signature for mixin, callback, and base class for behaviors have all changed

3. Finder methods can now be added easily by behaviors.

 

The above, in a nutshell, summarizes the main changes and enhancements in the new ORM and CakePHP 3.0 in general. Like all major releases or upgrades, the new release supplants many processes and functions in previous versions while at the same time adding many brand new features.

But as you go through the initial learning curve, please remember that you, the developer, have been the primary driving force behind the changes and enhancements. Your feedback and critiques over the years was the invaluable source that inspired CakePHP team to produce this groundbreaking and cutting-edge release that you are reviewing.

Latest articles

CakeFest 2021 Decisions

Well… 2021 is already feeling a little 2020ish to me, what about you? While I had high hopes of things being back to normal as far as travel, events, etc. It seems as though we still have a ways to go in that department.  

Difficult Decisions

Our events are no exception to this. While virtual CakeFest was a great success, I think that the CakePHP team, as well as the community had hoped for an in-person event… sooner, rather than later. Everyone is missing the adventures and camaraderie that physical meet-ups bring. Unfortunately, we may be waiting a little longer. The team couldn’t stand to make the tough call on the event alone, without consulting with the community.  

The Community Has Spoken

So, CakePHP took to the polls. The question was posted via social media, and included in the January newsletter: Should CakeFest be virtual or in-person (Los Angeles, specifically)? The consensus was no surprise, and 85%+ of bakers voted for a virtual event this year. One follower mentioned that he “wasn’t ready to risk the event not happening at all, so a virtual event is better than no event”. I couldn’t agree more.    A virtual conference was uncharted territory for CakeFest planners and attendees, but in my opinion.. it came together so wonderfully, that it is hard to be disappointed that it will be happening again. So here’s to gathering once again from the comfort of your own space, and hoping that everyone remembers to have their cake ready! Mark Story can even (virtually) cut it for you if you prefer.   The call for sponsors and speakers will be opening soon, so make sure to contact the CakePHP / CakeFest team with any questions you may have ahead of time.  Planning on attending? We would love to hear from you! What are some topics that you would like covered in the workshops or talks? EMAIL US HERE.   *Digital hug*  

Baking Smarter, Not Harder in 2021

After the year we had… our new motto should be work smarter, not harder, in 2021? Am I right? Luckily, CakePHP community and core members are extremely helpful and constantly working to make baking easier. Here are some things that will assist you with your CakePHP projects….

Plugins:

I recently wrote a blog featuring some of the best (voted by the community) CakePHP plugins - you can see it HERE. A full catalogue of CakePHP plugins is available at https://plugins.cakephp.org. It is no secret that plugins are essential for developers. CakeDC has a few of our own as well, you can get details at:  https://www.cakedc.com/plugins. The good news is, if you don’t see one, but have a great idea, you can build and release your own! To learn more about this process, Jose Gonzalez explains it in his CakeFest 2021 Talk.     Lots of other videos / talks / tutorials are located in the CakePHP Youtube channel as well.
 

Tools:

If you follow us on social media, we highlight a lot of tools released from the community.  One of the most popular is the debugging tool: https://book.cakephp.org/4/en/development/debugging.html A commonly used one is to help updating your composer.json while upgrading https://toolbox.dereuromark.de/utilities/upgrade   You can see more on THIS cakePHP tools list from Dereuromark!
 

Support:

I talk about support channels a lot… because well… what is open source without them? Every time I take a virtual stroll to the slack channels, I am amazed at the participation and interaction between community members. It’s like having your own development team available anytime you need them. Rest assured that if you have an issue that's causing a blocker, someone in the chat will (most likely) have a solution. A full list of support channels was listed in our last blog, but if you missed it, here you go: Discourse forum: https://discourse.cakephp.org Stack Overflow: https://stackoverflow.com/tags/cakephp IRC: https://kiwiirc.com/nextclient/irc.freenode.net#cakephp Slack: https://cakesf.herokuapp.com
 

The Book:

If you’re a veteran baker, you already know this. However, this wouldn't be a helpful blog without mentioning the all mighty book… The CakePHP bookThis is where you should start on your cake journey… read it… read it again. Then, reference back to it when you need it. There is an average of 46k users utilizing the book monthly (184k sessions). That should speak for itself.
 

Newsletter:

The CakePHP team releases a newsletter each month. This is a good resource if you’re looking to catch up on a month’s worth of news in one place.  Usually included is: releases, helpful tools, training/event dates, specials, surveys, and more.  You can see previous newsletters & subscribe HERE.   I will close this with a shameless plug: if you want to work a whole lot smarter this year, let someone else do the work for you. Check out all of the CakeDC services offered at cakedc.com/services.    Here’s to 2021 being a lot easier… more peaceful… and tasty!  

Saying Goodbye To 2020 Is A Piece of Cake

I never thought that I would be so excited to say… the year is coming to an end. What a year it has been. Let’s focus on some good things that happened for us this year.

CakePHP Community

Our team worked as closely as ever with the CakePHP community. We have hosted training sessions and multiple online meetups - for which we had consistent attendance and involvement. We have enjoyed getting to know each baker that attends and interacts with us. It was a great year for releases, too. If you follow the social media pages, you’re up to date with all of the new features and tools that are released in real time. Not to mention new and updated plugins. You can see all of the latest releases in the BAKERY.  

CakeFest

While we usually get to travel to some amazing city in the world and meet with the attendees in person, clearly that was not going to be an option this year. For the first time ever, the event was held virtually. Being so involved, and responsible for the success of the event, was stressful and frightening to say the least, but alas…it came together wonderfully.  We were able to have attendees that may not have been able to join us otherwise, and the participation was unprecedented. I am so thankful for the wonderful sponsors, speakers, attendees, and contributors that made the event possible.  In case you didn’t know, all of the CakeFest 2020 videos have been released. You can view them in the CakeFest archive, or on the CakePHP Youtube channel. Don’t forget to subscribe to the channel, and I will tell you why later.    Now… what can be expected in 2021? LOTS!

Increased Involvement

We want to expand the kitchen, if you will. We have an amazing group of core developers, and they would love to have more involvement from the community. If you’ve ever thought about contributing and getting involved, there are many options, you can check out details HERE.   

More documentation / blogs

Speaking of getting more people involved, this will include blogging. We have so many great plugins, but maybe not enough documentation to support the training on them. The core team is on board and we will all be working hard to provide more documentation for the framework. In fact, we even some some community members that have already volunteered to provide more blog contributions to the bakery. Maybe you’d like to as well?!  

Video Tutorials

One suggestion that we get consistently is that we need more video tutorials. We agree! We are going to be updating our YouTube channel and will hopefully be adding more video tutorials as soon as Q1. We will also make sure that training sessions / meetups will be available to subscribers for playback. We would love to hear your suggestions for content, you can email us at community@cakephp.org and let us know what you’d like to see. 
 

Support

As always, CakePHP has many support channels, and this will not change in the new year. In fact, we plan to make it even easier to connect with other bakers.   Here are some current available support options: Discourse forum: https://discourse.cakephp.org Stack Overflow: https://stackoverflow.com/tags/cakephp IRC: https://kiwiirc.com/nextclient/irc.freenode.net#cakephp Slack: https://cakesf.herokuapp.com
  Want to have your opinion heard? The core team wants to know what you want for CakePHP 5. Please take a moment and fill out a quick SURVEY to let them know.    We can’t wait to bake with you in 2021. Wishing you all a happy holiday season and a very happy new year!  

We Bake with CakePHP