PHP - Doctrine - How to autoload entities classes using a single namespace - php

Question

I have a group of PHP files containing classes (entities). Each class has the same namespace:
// src/App/Entity/Actions.php
namespace App\Entity;
use Doctrine\ORM\Mapping as ORM;
/**
* Actions
*
* #ORM\Entity
*/
class Actions
{
// SOME CODE
I autoload the PHP files containing the classes with composer:
"autoload": {
"psr-0": {
"App": "src/"
}
}
And in my bootstrap.php file, I add this line:
use App\Entity;
So I figured that because told the app to use the App\Entity namespace, that I can just call the entity classes like this: $entity = new Actions();
but when I try that, I get this error:
Fatal error: Class 'Actions' not found in C:\wamp64\www\spider\chebi2\inc\orm_tools.php on line 49
If I do this:
use App\Entity; use App\Repository;
if (class_exists('Actions')) { dump('exists'); } else { dump('not exists'); }
if (class_exists('\App\Entity\Actions')) { dump('exists'); } else { dump('not exists'); }
Heres what it outputs:
PS C:\wamp64\www\spider\chebi2> php .\get_actions.php
"not exists"
"exists"
So it can only find the class when I provide the full namespace. And weirdly enough, when I tried this:
// Direct path to the Actions.php file
use App\Entity\Actions;
if (class_exists('Actions')) { dump('exists'); }
else { dump('not exists'); }
if (class_exists('\App\Entity\Actions')) { dump('exists'); }
else { dump('not exists'); }
I get the same result:
PS C:\wamp64\www\spider\chebi2> php .\get_actions.php
"not exists"
"exists"
So now I'm even more confused. What is the point in using: use App\Entity; if it doesn't actually make the classes in that namespace directly available? And why is assigning the direct path to the class use App\Entity\Actions; not even working?
Am I doing something wrong here? Is there a correct way to use namespaces that I'm not understanding?

Answer 1

PSR-0 is depracated you should use PSR-4
in PSR-4
composer.json
"autoload": {
"psr-4": {
"App\\": "src/",
}
}
in directory src/ which is on same level as composer.json add directory Entity so in path src/Entity add class file Actions
namespace App\Entity;
class Actions
{
}
you can also use composer dump-autoload and check vendor/composer/autoload* fiels and see if namespaces are registered there.'
Regarding class_exists() it does not work with short names or aliases you need to provide the full name of class. I'd suggest using ::class operator So in your case it would be:
<?php
use App\Entity\Actions;
class_exists(Actions::class);

Answer 2

Thanks! I changed the auto loader to psr-4, and attached it to this:
"psr-4": {
"App\\": "src/"
}
dump-autoload is exactly what I was looking for, but I don't see any included files or classes listed:
PS C:\wamp64\www\spider\chebi2> composer dump-autoload -vvv
Reading ./composer.json
Loading config file ./composer.json
Checked CA file C:\Users\horse\AppData\Local\Temp\composer-cacert-12fdaece071ee9515fa28aabed5ab089876ae257833106e15a583e060eaff6b5.pem: valid
Executing command (C:\wamp64\www\spider\chebi2): git branch --no-color --no-abbrev -v
Executing command (C:\wamp64\www\spider\chebi2): git describe --exact-match --tags
Executing command (C:\wamp64\www\spider\chebi2): git log --pretty="%H" -n1 HEAD
Reading C:/Users/horse/AppData/Roaming/Composer/composer.json
Loading config file C:/Users/horse/AppData/Roaming/Composer/composer.json
Reading C:\wamp64\www\spider\chebi2/vendor/composer/installed.json
Reading C:/Users/horse/AppData/Roaming/Composer/vendor/composer/installed.json
Running 1.2.2 (2016-11-03 17:43:15) with PHP 5.6.25 on Windows NT / 10.0
Generating autoload file
I still can't find the entity classes.
To clarify, I should have the folder structure like this:
- src (contains only subdirectories)
- Entity (contains the entity files)
- Repositories
- App (empty)