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Matthew Weier O'Phinney:
Splitting the ZF2 Components
May 21, 2015 @ 10:55:18

Matthew Weier O'Phinney has a recent post about recent work that's been done to split up the componenents in Zend Framework 2 into their own repositories and linked as dependencies.

Today we accomplished one of the major goals towards Zend Framework 3: splitting the various components into their own repositories. This proved to be a huge challenge, due to the amount of history in our repository (the git repository has history going back to 2009, around the time ZF 1.8 was released!), and the goals we had for what component repositories should look like. This is the story of how we made it happen.

Matthew talks about the methods that were used to split things apart, even more so than they already were. While the components could be installed separately before, the methods used to get there were "cringeworthy". He talks about the different methods they've tried and the version bump issue that came with them, even when no changes were present. He talks about the ultimate goal of the refactor and the techniques to get there - a combination of grafts, subtree, subdirectory-filter and tree-filter through git. He covers some of the "stumbling blocks" they hit along the way including empty merge commits. The end result was a one-line command that could be executed and split out the provided component (well, with a lot of help behind the scenes).

He ends the post talking about the speed of the extraction process (hint: parallel processing is a happy thing), the ultimate results of the entire framework being split and a few lessons they learned along the way.

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Link: https://mwop.net/blog/2015-05-15-splitting-components-with-git.html

Osedea Blog:
Speeding up your ZF2 application
May 11, 2015 @ 16:30:36

On the Osedea blog today there's a new post showing you a few ways you can speed up your Zend Framework 2 application with a few easy code changes.

After about a year developing a Zend Framework 2 application, we decided it was time to do some optimizations. Page load times were up to several seconds on our bigger pages, and none of our pages were loading in under 2 seconds. We took a few days to profile our application and scour the various ZF2 articles out there to see what could be done to reduce the load times. We found some pretty obvious causes as well as a few inconspicuous ones. Here's a brief list of our findings, along with some steps on how to improve your ZF2 applications.

Their list includes updates around:

  • Standard vs Classmap Autoloading
  • Event Listeners
  • Making your Module.php "skinny"
  • Cache Settings
  • Session Write Close

Each tip includes a bit of code showing what will need to be changed, making it easy to drop them in and make your application nice and speedy.

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zendframework2 application speed performance

Link: http://blog.osedea.com/2015/05/11/speeding-up-your-zf2-application/

Rob Allen:
Using ZendConfig with a Slim app
April 21, 2015 @ 09:11:31

Rob Allen has a quick post to his site continuing his theme of Slim framework-related posts with this new post showing how to use the ZendConfig module with a Slim application.

Sometimes you need more configuration flexibility for your application than a single array. In these situations, I use the ZendConfig component which I install via composer: composer require "zendframework/zend-config". This will install the ZendConfig component, along with its dependency ZendStdlib.

He shows how to use the glob function to have the component load a set of configuration files and the order they'd load in. He also points out that the ZendConfig component supports other formats including YAML and JSON data. He also includes a code example showing how you can load multiple formats at the same time (ex. some .php files and some .yml files with one call).

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Link: http://akrabat.com/using-zendconfig-with-a-slim-application/

Acim.net:
Trait injection in Zend Framework 2
December 11, 2014 @ 11:55:56

Boban Acimovic has recently posted a tutorial showing you how to use traits in a Zend Framework 2 application to inject additional functionality into your pre-existing classes.

There are several tutorials on the Internet which explain how to use interface based dependency injection in Zend Framework 2. The idea is to make an initializer, figure out which interfaces a class implements and then inject appropriate dependencies using setters defined in the interfaces. Bad part about this is that in each class you implement such an interface you have to declare a property which would hold the injected object and also to implement the setter for it, which is defined in the interface, by the way. In order to simplify this further it is possible to write trait for each interface, but then why should not use just traits? Why do we need interfaces? Is this possible at all?

He includes some example code showing how to set up dependency injection for the traits (via a custom injector based on the "InitializerInterface") and make the autoloading easier. He shows how to add this to the provider configuration as an "initializer" and create the first example trait, a checker for data in user passwords. He then drops the functionality into a service class just by using the "use" keyword and the trait name.

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Link: http://www.acim.net/2014/11/trait-injection-in-zend-framework-2/

Rob Allen:
Validating JSON with ZF2's ZendValidator
December 09, 2014 @ 10:42:40

Rob Allen has a quick post today showing how to use the ZendValidator component from Zend Framework 2 to handle JSON validation.

Let's say that you have an admin form where the user can enter JSON and you'd like to validate that the JSON parses before allowing the user to submit. To do this, you can use the rather excellent jsonlint project by Jordi Boggiano. Obviously, add it via Compser.

He starts with a quick example of using the "JsonParser" in isolation to validate a JSON string. Then he integrates it into the framework as a custom validator class (extending the AbstractValidator) and enabling the "isValid" call to be made and return a pass/fail result. You can find out more about the ZendValidator component in this page of the Zend Framework manual.

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Link: http://akrabat.com/zend-framework-2/validating-json-with-zf2s-zendvalidator/

Rob Allen:
Sending attachments in multipart emails with ZendMail
September 16, 2014 @ 09:18:09

Rob Allen has a new post today showing you how to use the ZendMail component of the Zend Framework 2 to send attachments with multipart emails. A multipart email allows you to combine both the HTML and plain text versions of the content into a single email.

I've written before about how to send an HTML email with a text alternative in ZendMail, but recently needed to send an attachment with my multipart email. With help from various sources on the Internet, this is how to do it.

He includes the full code for the example first: a "sendEmail" function that sets up the MIME and plain-text parts and uses the "MimeMessage" and "MimePart" objects to attach the file. He goes through each of the parts of the script and describes what's happening and how that changes the content of the email. You can find out more about the ZendMail component in this section on the Zend Framework manual.

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Link: http://akrabat.com/zend-framework-2/sending-attachments-in-multipart-emails-with-zendmail/

Rob Allen:
Integrating ZF2 forms into Slim
August 26, 2014 @ 09:40:47

Rob Allen has a helpful post if you've ever wanted to take advantage of the simplicity of the Slim framework and the power of the Zend Framework 2 forms. In this latest post he walks you through the process of setting it all up and using the ZF2 elements outside of the main framework.

Let's say that you want to use Zend Framework 2′s Form component outside of ZF2 itself. In this case, a Slim application. It turns out that Composer makes this quite easy, though there's quite a lot of code involved, so this is a long article. Start with a really simple Slim Application...

His simple Slim application - just one route - handles both the GET and POST actions and uses several ZF2 components besides just the Form (dependencies mostly). He shows you the updates and additions you'll need to make to the service manager configuration and how to set up some custom validation and the form object in the controller. His example form only has two elements, an email field and a submit button and validation is done on the email address when it's submitted. Finally he includes the View object, extended from Slim's that combines some of the ZF2 and Slim handling to correctly render the form.

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Link: http://akrabat.com/zend-framework-2/integrating-zf2-forms-into-slim/

Rob Allen:
Globally overriding validation messages for ZF2 forms
August 19, 2014 @ 10:46:27

Rob Allen has posted a quick hint about overriding validation messages in a Zend Framework v2 based application. This override is related to the output of a standard form and works globally instead of just on a single form.

One thing that I always do when creating a Zend Framework 2 form is override the validation messages for a number of validators - EmailAddress in particular. I recently decided that I should probably sort this one out once and be done with it. Turns out that it's quite easy assuming that you use the FormElementManger to instantiate your forms.

The post includes all the code you'll need to do the override: a custom validator example, the changes you'll need to make to the configuration and an example of a form that uses the custom handling. He explains each of the parts too, showing how they fit together in your module.

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zendframework2 override validation message form tutorial

Link: http://akrabat.com/zend-framework-2/globally-overriding-validation-messages-for-zf2-forms/

Master Zend Framework:
Easy Cache Configuration With StorageCacheAbstractServiceFactory
August 07, 2014 @ 14:46:54

The Master Zend Framework site has posted a tutorial centered around caching in Zend Framework 2 applications. In this new post Matthew Setter looks at using the StorageCacheAbstractServiceFactory to handle the configuration and management of caching. The method is already implemented in the skeleton ZF2 application, so it makes it even easier to get started.

If you've been playing with Zend Framework 2 for some time, specifically the ZF2 Skeleton Application, you still may not have come across some of the pre-registered service manager abstract factory options. As I was browsing through the Application module's module.config.php recently, I came across this snippet [setting up the StorageCacheAbstractServiceFactory]. It was at that point I wondered why I'd spent time setting up caching using other methods, when this approach was already there and seemed to do a lot of the heavy lifting for me. So in this week's tutorial, I'm going to take you through how to use it, working with the default configuration provided in the manual.

He shows how to update the default configuration for the caching service including the caching type (the technology) and the configuration options to use. He mentions the kinds of caching available and provides a more "real world" example. This example uses the Laravel Homestead VM and a simple Redis server as the caching datastore. He sets up the configuration and shows how to access the caching service in both the controller and via dependency injection. He finishes off with a few lines of code showing how to use the caching to check for an item and, if not found, add it to the dataset.

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zendframework2 tutorial cache configuration storagecacheabstractfactory

Link: http://www.masterzendframework.com/servicemanager/storage-cache-abstract-service-factory-easy-cache-configuration

Master Zend Framework:
Accessing ServiceManager Services in Controller Plugins
July 31, 2014 @ 09:43:49

Matthew Setter has posted another new tutorial to his Master Zend Framework site today showing you how to access ServiceManager services in controller plugins. Controller plugins are a Zend Framework feature that allows certain events to trigger the plugin code during the lifetime of the controller.

I've seen some questions on Google+ and StackOverflow of late, regarding how to get access to the Zend Framework 2 database adapter, along with other ServiceManager-defined services, in a custom controller plugin. This type of setup can come in handy for a number of situations. You may want to access services such as caching, logging or databases and want to provide a simple interface for doing so. People seem really interested in how to do it, but how to get access to services from the ServiceManager doesn't seem to be as clear as it could be. Gladly, there's not much involved in actually doing it.

He shows you how to create a plugin for an existing module, creating the two needed classes and adding a new function to configure it. He starts with the plugin factory that can be used to generate an instance of the plugin. Next is the plugin class itself that extends the abstract plugin and controller plugin classes. The required database adapter is injected into it via a constructor injection. Finally, in the Module.php configuration, he creates a "getControllerPluginConfig" method that registers the new plugin and points to its class. A screencast is also provided showing the active development of the code.

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servicemanager plugin controller tutorial access zendframework2

Link: http://www.masterzendframework.com/servicemanager/accessing-servicemanager-services-controller-plugins


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