bp/app/Models/AttachmentModel.php

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<?php
namespace App\Models;
use CodeIgniter\Model;
class AttachmentModel extends Model
{
protected $table = 'attachments';
protected $primaryKey = 'id';
protected $useAutoIncrement = true;
protected $returnType = 'array';
protected $useSoftDeletes = false;
protected $allowedFields = [
'entity_type',
'entity_id',
'file_name',
'file_path',
'file_size',
'file_type',
'uploaded_by',
];
protected $useTimestamps = true;
protected $createdField = 'created_at';
protected $updatedField = 'updated_at';
/**
* Получить вложения по типу и ID сущности
*/
public function getByEntity(string $entityType, int $entityId): array
{
return $this->where('entity_type', $entityType)
->where('entity_id', $entityId)
->orderBy('created_at', 'DESC')
->findAll();
}
/**
* Получить вложение по ID
*/
public function getById(int $attachmentId): ?array
{
return $this->find($attachmentId);
}
/**
* Проверить принадлежность вложения сущности
*/
public function belongsToEntity(string $entityType, int $entityId, int $attachmentId): bool
{
$attachment = $this->find($attachmentId);
return $attachment && $attachment['entity_type'] === $entityType && $attachment['entity_id'] == $entityId;
}
/**
* Удалить вложение
*/
public function deleteAttachment(int $attachmentId): bool
{
$attachment = $this->find($attachmentId);
if (!$attachment) {
return false;
}
// Удаляем файл с диска
$filePath = $attachment['file_path'];
if (file_exists($filePath)) {
unlink($filePath);
}
return $this->delete($attachmentId);
}
/**
* Удалить все вложения сущности
*/
public function deleteByEntity(string $entityType, int $entityId): bool
{
$attachments = $this->where('entity_type', $entityType)
->where('entity_id', $entityId)
->findAll();
foreach ($attachments as $attachment) {
$this->deleteAttachment($attachment['id']);
}
return true;
}
/**
* Получить количество вложений сущности
*/
public function countByEntity(string $entityType, int $entityId): int
{
return $this->where('entity_type', $entityType)
->where('entity_id', $entityId)
->countAllResults();
}
/**
* Получить размер файла в человекочитаемом формате
*/
public function formatSize(int $bytes): string
{
if ($bytes >= 1073741824) {
return number_format($bytes / 1073741824, 2) . ' GB';
} elseif ($bytes >= 1048576) {
return number_format($bytes / 1048576, 2) . ' MB';
} elseif ($bytes >= 1024) {
return number_format($bytes / 1024, 2) . ' KB';
}
return $bytes . ' B';
}
/**
* Получить иконку для типа файла
*/
public function getFileIcon(string $fileType): string
{
$icons = [
'image' => 'fa-file-image',
'pdf' => 'fa-file-pdf',
'word' => 'fa-file-word',
'excel' => 'fa-file-excel',
'powerpoint' => 'fa-file-powerpoint',
'zip' => 'fa-file-zipper',
'text' => 'fa-file-lines',
'video' => 'fa-file-video',
'audio' => 'fa-file-audio',
];
foreach ($icons as $key => $icon) {
if (stripos($fileType, $key) !== false) {
return $icon;
}
}
return 'fa-file';
}
}