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Category: Symfony Framework

Doctrine's Object Relational Mapper and the Entity classes provide us developers a very easy way to deal with Table associations. When we define a One To Many / Many To One Table association, the best way to query results is from the One To Many side.

Before you continue reading, you may want to check on this previous posts:

 

Lets suppose you have a Customers Entity. Each Customer has many bills associated to it:

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Category: Virtualization

Once you have up and running Vagrant and VirtualBox in your machine you need to follow these steps to create a VM and install all necessary dependencies to run PHP Projects.

UPDATE: I have updated the vagrant file to use CentOS 9 Stream so we can install newer versions of PHP and NodeJs

Prerequisites:

 vagrant vm

Step 1. Go to the Directory where you have the Vagrantfile and then execute

$ vagrant suspend

 this will stop the VM if it is running.

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Category: Virtualization

Docker has revolutionized containerization and simplified the deployment of applications. However, as your Docker environment grows, it's crucial to maintain cleanliness and remove unnecessary components to free up disk space and improve performance.

Here are the steps to guide you through the process of removing Docker images, containers, volumes, and networks, ensuring an efficient and streamlined Docker setup.

Before diving into the cleanup process, ensure that you have the following prerequisites in place:

1. Docker installed and configured on your system.
2. Sufficient permissions to manage Docker resources.
3. Basic familiarity with the Docker command-line interface (CLI).

Removing Docker Images:

Over time, unused or outdated Docker images can accumulate on your system, consuming valuable disk space.

To remove them, follow these steps:

  • a. List all Docker images using the command docker images -a.
    b. Identify the images you want to remove by their repository and tag.
    c. Execute the command docker rmi <image_id> for each image you wish to delete.

docker clean up

 
Deleting Docker Containers:

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Category: Symfony Framework

MostPHP Software Applications require to provide the user the capability of uploading images, pdf and other types of documents. With Symfony, this implementation is very easy and simple, just follow this recipe:

Prerequisites:

Step 1. Create a form in your Symfony application to allow file uploads. You can use Symfony's Form component or directly create an HTML form.
Define the form fields including the file input field. For example, using Symfony's Form component, you can define a file field like this:

symfony file upload

use Symfony\Component\Form\Extension\Core\Type\FileType;
// ...

public function buildForm(FormBuilderInterface $builder, array $options)
{
    $builder
        // other form fields
        ->add('file', FileType::class)
        // ...
    ;
}