Help with sending attachments API

[jacao]

Thanks a lot! Below code that works for me. It returns file content coded to Base64. Hope it will be usefull for other.

.../espo/custom/Espo/Custom/FormulaFunctions/FileContent.php

<?php
namespace Espo\Custom\FormulaFunctions;

use Espo\Core\Formula\Exceptions\TooFewArguments;
use Espo\Core\Formula\Func;
use Espo\Core\Formula\EvaluatedArgumentList;
use Espo\Core\FileStorage\Manager;
use Espo\ORM\EntityManager;
use Espo\Entities\Attachment;

class FileContent implements Func
{
public function __construct(
private Manager $fileStorageManager,
private EntityManager $entityManager,
) {}

public function process(EvaluatedArgumentList $arguments): string
{
if (count($arguments) < 1) {
throw TooFewArguments::create(1);
}

$id = $arguments[0];
$attachment = $this->entityManager->getRDBRepositoryByClass(Attachment::class)->getById($id);

if (!$attachment) {
throw new \RuntimeException("No attachment $id.");
}

$content = $this->fileStorageManager->getContents($attachment);

return base64_encode($content);
}
}

.../espo/custom/Espo/Custom/Resources/metadata/app/formula.json

{
"functionClassNameMap": {
"fileContent": "Espo\\Custom\\FormulaFunctions\\FileContent"
},
"functionList": [
"__APPEND__",
{
"name": "fileContent",
"insertText": "fileContent(ID)"
}
]
}
​ 

[yuri]

Note: 'fileContent' class should be named FileContent, according naming conventions in PHP

[jacao]

Thanks. I've corrected code above.