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Marc Morera:
Defeating Expression Language
May 18, 2015 @ 08:38:27

Marc Morera has a new post to his site wanting to help you defeat Symfony's expression language and perform the same functionality, just more on the code side (another option).

How beautiful Expression Language definitions are, right? I mean, inserting that complex expressions in a Dependency Injection configuration file is so nice and fast if you need to inject the result of a method in a service (one of the multiple examples we can see). [...] This is not a bad idea, really, but because we are engineers and we should have as much information as possible in order to be able to choose between the best option, always, I will show you another way of defining this piece of code.

He shows how to write some code using the Factory design pattern structure to reproduce a bit more complex piece of expression language. He shows the setup of the services.yml file to define the "managers" and classes/services to be injected. He also notes that this removes the need for the "symfony/expression-language" dependency and makes things more portable in the future.

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Link: http://mmoreram.com/blog/2015/05/18/defeating-expression-language/

SitePoint PHP Blog:
Adding Products to Your eBay Store with the Trading API
January 13, 2015 @ 12:50:14

The SitePoint blog has posted the next part of their "using the eBay trading API" series today (part three) showing you how to add products to your store via their API.

In this third and final part of our eBay Trading API series, we'll be building the product adding functionality into our application. Now that we're done with the store settings, we can begin with writing the code for the controller that would handle the creation of products.

He walks you through the code to create the "new" action on your Slim controller, build the view to gather the product information and handle the upload of product images with the Dropzone Javascript library. Also included is the code to get the current category list (to populate a dropdown list) and the code needed to create the product, both in your database and sending it back to the eBay API for insertion. This finishes the series about using this API, but you can get more information on the API itself though its documentation. The full code for the tutorial series is available on GitHub.

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ebay trading api tutorial series part3 add product upload

Link: http://www.sitepoint.com/adding-products-ebay-store-trading-api/

SitePoint PHP Blog:
Configuring Your Store's Settings with the eBay Trading API
January 12, 2015 @ 11:18:22

The SitePoint PHP blog has posted the next article in their "eBay Trading API" tutorial series today. In this new tutorial they show you how to configure your store's settings.

In part 1, we explained the different parts of eBay's developer dashboard and configured our test application. We also created our database. Now we're ready to create a project. In this part, we'll focus on store settings. In part 3, we'll add new products to our store.

They include the "composer.json" contents you'll need to install all of the libraries they'll use for the tutorial. With those installed they start in on the code, creating a basic Slim application that uses Twig views and some custom configuration options. Then he starts in on the classes, creating an "Ebay" class to handle the application settings and creating a "post" method to handle the API request. He adds in a few other helper methods and builds a database object/query to get the application details from the database. Next up are the templates for the main page and the controller to handle the default, session and token requests. He adds in some additional route configurations, makes a "view action" for the store settings and to request the user preferences from the API.

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configure store setting ebay trading api series part2

Link: http://www.sitepoint.com/configuring-stores-settings-ebay-trading-api/

SitePoint PHP Blog:
Introducing eBay's Trading API - Setting Up
January 06, 2015 @ 12:58:43

The SitePoint PHP blog they've posted the first part of a new series about using the eBay API as a part of a product management application. In part one they start by getting things set up on the eBay trading API and creating the database you'll need for the rest of the series.

In this tutorial series, I'll walk you through Ebay's Trading API. The Trading API allows you to build applications that can be used for selling in Ebay. Here are some examples of things you can do with the API: retrieve store information, update store preferences, add products to a specific eBay store, end product listings, update product price and retrieve product information. In this tutorial, we'll be creating an app that allows users to create a product on eBay through the use of the API.

They start by helping you register an application on the eBay developer site and configure the settings to match your needs. They link to some of the tools you can use during your development and some of the headers/content you'll need to set to make your requests. The tutorial wraps up with the SQL needed to create the database backend for your store's settings, products, listings and some sample data to insert.

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ebay trading api tutorial series part1 product management

Link: http://www.sitepoint.com/introducing-ebays-trading-api-setting/

Igor Wiedler:
Stateless Services
April 04, 2013 @ 10:41:50

Igor Wiedler has a recent post to his site about creating stateless services, specifically in the context of using a dependency injection container to manage the objects your application uses.

As more frameworks and libraries, particularly in the PHP world, move towards adopting the Dependency Injection pattern they are all faced with the problem of bootstrapping their application and constructing the object graph. In many cases this is solved by a Dependency Injection Container (DIC). Such a container manages the creation of all the things. The things it manages are services. Or are they?

He notes that, according to some of the principles of domain-driven design, "services" should be stateless - the results of calls to the service shouldn't alter it, it should only depend on the values passed in. He goes on to put this into the context of a DIC and gives an example of the "request service" (and how it violates the DDD principles of statelessness). He talks some about scopes (dependencies) and mutable services. He talks about methods to get around these issues with the "request" instance, ultimately coming to the conclusion that event listeners might be the way to go.

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Link: https://igor.io/2013/03/31/stateless-services.html

Gonzalo Ayuso:
Managing Windows services with Symfony/Process and PHP
November 01, 2012 @ 10:49:09

In his recent post Gonzalo Ayuso shows how to use Symfony to work with Windows services on the server.

Sometimes I need to stop/start remote Windows services with PHP. It's quite easy to do it with net commnand. This command is a tool for administration of Samba and remote CIFS servers. [...] Today we are going to create a PHP wrapper for [net rpc service].

He uses Behat to create a feature (test) file, the code behind the features and a service class that handles the actual work of interacting with the service (with methods to do things like stop, start and list running services). Examples of its use are also included.

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PHPMaster.com:
An Introduction to Services
April 03, 2012 @ 13:12:16

On PHPMaster.com today there's a new article from Alejandro Gervasio introducing you to the concept of "services", a layer put on top of your models to make a common API that's easier to reuse.

Don't let the definition freak you out, as if you've been using MVC for a while the chances are you've used a service already. Controllers are often called services, as they carry out application logic and additionally are capable of interfacing to several client layers, namely views. Of course in a more demanding environment, plain controllers fail short in handling several clients without the aforementioned duplicating, so that's why the construction of a standalone layer is more suitable in such cases.

He explains the process behind creating a simple domain model (image here) and shows how the Service layer wraps it up into a simpler interface, leaving the model to handle the business logic. He uses the example of an "EncoderInterface" that's implemented in a "JsonEncoder" and "Serializer" to both provide a "setData" method.

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services tutorial model wrapper layer


Jakub Zalas' Blog:
Managing object creation in PHP with the Symfony2 Dependency Injection component
September 08, 2011 @ 09:24:55

On his blog today Jakub Zalas has posted a tutorial he's written up about using dependency injection in PHP with the Symfony2 dependency injection component (DIC).

Symfony's DependencyInjection component is a PHP implementation of a Service Container, or as others like to call it, a Dependency Injection Container (DIC). The component also provides useful tools for handling service definitions, like XML loaders or dumpers. If you want to learn more about the dependency injection or the dependency injection container, read an excellent series of articles on the subject by Fabien Potencier: What is Dependency Injection?

He walks you through the entire process - installing the needed libraries (the DIC, a config and class loader component and Buzz, a lightweight HTTP client). Code is included to show object creation the "usual way" and then creating the same types of objects in a dependency injection environment. Also included is a sample XML document describing the services for the container. He finishes the post with a GraphvizDumper-generated image for the container.

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dependency injection symfony2 component services xml tutorial


Brian Swan's Blog:
Getting Started with SQL Server Reporting Services (SSRS) and PHP
May 06, 2010 @ 10:12:15

Brian Swan has a new post to his MSDN blog today that looks at working with the SQL Server Reporting Services SDK and PHP to automatically create some reports based on the date in your database.

In this post I'll dive into the SSRS SDK for PHP that was recently released by the Interoperability team here at Microsoft. [...] The documentation in the SDK is complete with explanations for the classes that make up the SDK, code examples, and a "hello world" example. However, in this post, I'll build a simple web page (code attached to this post) that renders the Sales report that I created last week.

He starts off with an overview of how all of the technology will fit together and some of the things you'll need to have before you can get started - a user with the right permissions and a connection to the server. The "SSRSReport" class in the SDK gives you quick access to load a report based on a named location. You can then use methods like "RenderAsHTML" to output it as HTML or one of other methods (like CSV, text, PDF, etc).

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reporting services sqlserver ssrs sdk tutorial


RIAZone:
Integrating PHP with Flash Collaboration Services
December 14, 2009 @ 13:47:28

On the RIA Zone (a part of the DZone network) there's a new tutorial from Ryan Stewart about combining PHP with the Flash Collaboration Services (real-time collaboration and social capabilities via the LCCS) in the second part of his series (part one).

Another great way to integrate LCCS and PHP is with the REST APIs and the library that ships with the LCCS SDK. With those APIs we can perform a number of management functions including creating and deleting rooms, managing roles, and creating templates. These APIs make it very easy to create a customized, dynamic collaboration experience with PHP. You can create rooms on the fly for your users and get information about what kind of content is in those rooms. In this example we're going to create a basic room manager with PHP that will let us create, delete, and view information about specific rooms.

Code is included to use the AFCS PHP library to connect to the Services API and pass in the username and password directly from the user. The request is made and a token is passed back to the calling script. The XML description of the full Flex application is included in the tutorial.

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flash collaboration services api tutorial



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