Symfony, Twig, Doctrine & ORMs Archives - Belchamber Web Tools & Code

Useful Symfony 7 Web References

Aaron Belchamber — Sat, 23 Aug 2025 09:59:03 +0000

These references explain the latest about Symfony 7 so here's a useful list of links to go and learn more yourselves.

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Using raw PDO MySQL queries with safe placeholders in Symfony

Aaron Belchamber — Thu, 10 Sep 2020 19:48:57 +0000

This comes in handy as Doctrine doesn’t always support all native MySQL commands and functions. Strangely, certain common time and date-related ones like YEAR(), MONTH() and DAY(). The $paramsArr is an array for all placeholders in your standard PDO query.

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Symfony & Twig: Simple month and year form selection widget

Aaron Belchamber — Tue, 26 Jan 2016 15:37:39 +0000

This is a very useful Twig that I use in a lot of different forms. I attach a listener and when they click “Update” it will redirect the user by appending the URL with the /year/month to hook nice and cleanly in built-in routes to pass the year and month into different controllers. <form id="yearMonthWidget" […]

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Symfony & Doctrine: Using table joins with unassociated entities

Aaron Belchamber — Mon, 25 Jan 2016 15:29:27 +0000

In Symfony using Doctrine, if no association is available for two entities, you can still join them and treat them like they have a relationship. To do so, you have to use the “Join: WITH” method. Here’s an example query to illustrate, notice the “a.user = u.id”. public function getHistory($users) { $qb = $this->entityManager->createQueryBuilder(); $qb […]

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PHP Symfony Events: Developer tips to easily extend user administration and management within your code

Aaron Belchamber — Mon, 30 Nov 2015 18:43:27 +0000

A special thanks to James Halsall for some excellent tips in tapping into Symfony events through kernel listeners. His article explains how to create a service to trigger on certain events, this is related to the FOS User Bundle but the same pattern applies to most events in your Symfony project. Click here to read […]

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In Symfony, moving some code from one bundle to another a simple way to modularize your code, reuse and scale. Oh yeah!

Aaron Belchamber — Mon, 03 Aug 2015 00:25:44 +0000

I recently ran into an issue where I found I was creating a new user profile system for different systems and then it occurred to my: DRY. DON’T REPEAT YOURSELF. Yet, in the bustle of activity I realized there was too much in common with these user profiles to rewrite the code. So why not […]

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Check if Symfony PHP session has been started

Aaron Belchamber — Mon, 27 Jul 2015 19:23:44 +0000

Here’s how you can check if a session in Symfony was started: if ($this->get('session')->isStarted()){ // Session has been started, so do stuff here } Not a big fan of session variables, but used for non-sensitive session data, I think sessions are still useful. After all, if you only want certain behaviors on your website tailored […]

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Latest Symfony Composer dependency list for bootstrapping new Symfony bundle with most common bundles

Aaron Belchamber — Sun, 26 Jul 2015 18:17:55 +0000

Most Symfony sites you develop will probably include the FOS User Bundle, Twitter Bootstrap, and JQuery. You can always remove them from your Composer dependency list, but here is my latest “Symfony Bootstrap” install. A few issues with dependencies in your Composer are expected, I ran into this error while installing the Sonata Admin Bundle, […]

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MySQL “Where IN” value contained in list used with setParameter() requires value to be array if using placeholders

Aaron Belchamber — Wed, 22 Jul 2015 14:23:25 +0000

In normal SQL queries, you can use “WHERE IN” like this: “WHERE id IN (1,5,10)” as in: If the list 1,5,10 “contains” the value represented by the value in the “id” field. However, if you define a comma delimited string, you can’t simply do this: $idListString=”1,5,10” $dql=”SELECT d FROM Your/Entity d WHERE id IN (:idList)” […]

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Extending a Symfony parent Twig block in child view’s block with parent() call easy, useful and DRY

Aaron Belchamber — Sun, 19 Jul 2015 17:59:08 +0000

Twig blocks are like methods in a class. If the Twig container is a class, Twig blocks are methods. So you can call on a parent Twig view and extend the parent just like a function using the “parent()” function like below within the dynamic content tags, which are a pair of squiggly brackets. Here’s […]

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