Dev Talk

Creating simple Symfony2 service

I am not talking about web services, but I am talking about symfony2 service container and the way of basic creating services inside Symfony2 project that are accessible from all other bundles via service container.

Why do I need to make some part of code like service inside Symfony2 anyway?

There is one possible problem:

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Symfony2 REST

Recently I started to write web services in my Symfony2 project that will provide JSON data for using with mobile and other devices that will consume that.

On the mobile side, RESTKIT will be used to connect to my services, and on my (web) side I used Symfony2 (of course).

So, let’s write a simple web service:

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Symfony2 Assetic

I will try in short words write about using assetic in Symfony2 project.

Why do I need assetic anyway? What is that?
That was the first question I asked myself before asked my good friend ‘Google’.

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Doctrine DBAL with Symfony2

I regularly use Doctrine ORM for database operations in my Symfony2 project, but there was one situation that I had to write database importer from SQLITE database into projects Mysql database. Importer should run only once and I didn’t want to make new entity classes for importer, but just make code to work while import is not finished.

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Symfony2 CLI

As someone of you know there is pretty good feature made in Symfony2 that is worth to mention: Console interface with commands that make our life easier to generate different sort of things in our Symfony2 application and execute many useful commands with Doctrine etc.

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TWIG with wordpress part2

Using TWIG plug in we made in part1 of this article

It’s highly advised to read part1 first to understand what’s going on.

When our TWIG engine autoloader is ready, and our plugin is activated from wp-admin side, we can go to wordpress themes folder and make new theme folder. Inside our theme folder, let’s make starter file: ‘index.php’ slightly modified to fit our needs:

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TWIG with WordPress part1

Making TWIG autoload from WP plugin

Maybe someone will say: this is a crazy idea. Why would someone want to do that?
Maybe it really is crazy, but I would say: why not?

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Parsing Amazon affiliate links in WordPress

Recently my team had problem with Amazon affiliate links on our web site.
On the web, we have wordpress installation and inside main content of web page we have some Amazon affiliate links that entered in the content few years ago and not working any more because Amazon changed API somehow. I searched the web for some new version of wordpress plug-in for new API version, because our old plug-in for displaying that links properly was turned off.

FYI that links inside content look like this:

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Symfony2 – Internal server error 500

Did you ever had problems with Internal server error 500 with symfony2? I did few days ago. When I open my web application in development mode (http://mysymfony2url/app_dev.php/something) It works OK, but when I tried to open it in ‘production’ mode I always got ‘Internal server error 500’ response, so I decided to look at error.log inside my localhost to see what is happening.
Here is what I saw there:

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Symfony2 Doctrine2 transactions

Like everything else, using transactions in Symfony2 is easy task.
I had a case that I had to use transactions to make sure that everything or none is saved to database, because I didn’t wand anything to break at the half way and leave data unsaved.

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Symfony2 Forms – Entity field type

NOTE: Tested on Symfony2 Beta3. Might not work on later releases!

Symfony2 offers many prebuilt field types for using when creating forms. The one of them I found interesting is ‘EntityType’. There are just basic documentation about that.

I had one case recently that I had to use Entity field type for creating form, but except using it in simple way like documented I wanted to use it on little more advanced way.

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