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<?php
namespace Yajra\DataTables;
use Exception;
use Illuminate\Contracts\Validation\Validator;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\SoftDeletes;
use Illuminate\Database\QueryException;
use Illuminate\Foundation\Validation\ValidatesRequests;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;
use Illuminate\Http\UploadedFile;
use Illuminate\Support\Facades\Storage;
use Illuminate\Validation\ValidationException;
abstract class DataTablesEditor
{
use ValidatesRequests;
/**
* Action performed by the editor.
*
* @var string|null
*/
protected $action = null;
/**
* Allowed dataTables editor actions.
*
* @var array
*/
protected $actions = [
'create',
'edit',
'remove',
'upload',
'forceDelete',
'restore',
];
/**
* List of custom editor actions.
*
* @var array
*/
protected $customActions = [];
/**
* @var null|string|\Illuminate\Database\Eloquent\Model
*/
protected $model = null;
/**
* Indicates if all mass assignment is enabled on model.
*
* @var bool
*/
protected $unguarded = false;
/**
* Upload directory relative to storage path.
*
* @var string
*/
protected $uploadDir = 'editor';
/**
* Flag to force delete a model.
*
* @var bool
*/
protected $forceDeleting = false;
/**
* Flag to restore a model from deleted state.
*
* @var bool
*/
protected $restoring = false;
/**
* Filesystem disk config to use for upload.
*
* @var string
*/
protected $disk = 'public';
/**
* Current request data that is being processed.
*
* @var array
*/
protected $currentData = [];
/**
* Process dataTables editor action request.
*
* @param Request $request
* @return JsonResponse|mixed
*
* @throws DataTablesEditorException
*/
public function process(Request $request)
{
$this->action = $request->get('action');
if (! in_array($this->action, array_merge($this->actions, $this->customActions))) {
throw new DataTablesEditorException(sprintf('Requested action (%s) not supported!', $this->action));
}
try {
return $this->{$this->action}($request);
} catch (Exception $exception) {
$error = config('app.debug')
? '<strong>Server Error:</strong> ' . $exception->getMessage()
: $this->getUseFriendlyErrorMessage();
app('log')->error($exception);
return $this->toJson([], [], $error);
}
}
/**
* @return string
*/
protected function getUseFriendlyErrorMessage()
{
return 'An error occurs while processing your request.';
}
/**
* Display success data in dataTables editor format.
*
* @param array $data
* @param array $errors
* @param string $error
* @return JsonResponse
*/
protected function toJson(array $data, array $errors = [], $error = '')
{
$code = 200;
$response = [
'action' => $this->action,
'data' => $data,
];
if ($error) {
$code = 422;
$response['error'] = $error;
}
if ($errors) {
$code = 422;
$response['fieldErrors'] = $errors;
}
return new JsonResponse($response, $code);
}
/**
* Process create action request.
*
* @param Request $request
* @return JsonResponse
*
* @throws \Exception
*/
public function create(Request $request)
{
$model = $this->resolveModel();
$connection = $model->getConnection();
$affected = [];
$errors = [];
$connection->beginTransaction();
foreach ($request->get('data') as $data) {
$this->currentData = $data;
$instance = $model->newInstance();
$validator = $this->getValidationFactory()
->make(
$data,
$this->createRules(), $this->messages() + $this->createMessages(),
$this->attributes()
);
if ($validator->fails()) {
foreach ($this->formatErrors($validator) as $error) {
$errors[] = $error;
}
continue;
}
if (method_exists($this, 'creating')) {
$data = $this->creating($instance, $data);
}
if (method_exists($this, 'saving')) {
$data = $this->saving($instance, $data);
}
$instance->fill($data)->save();
if (method_exists($this, 'created')) {
$instance = $this->created($instance, $data);
}
if (method_exists($this, 'saved')) {
$instance = $this->saved($instance, $data);
}
$instance->setAttribute('DT_RowId', $instance->getKey());
$affected[] = $instance;
}
if (! $errors) {
$connection->commit();
} else {
$connection->rollBack();
}
return $this->toJson($affected, $errors);
}
/**
* Resolve model to used.
*
* @return Model
*/
protected function resolveModel()
{
if (! $this->model instanceof Model) {
$this->model = new $this->model;
}
$this->model->unguard($this->unguarded);
return $this->model;
}
/**
* Get create action validation rules.
*
* @return array
*/
public function createRules()
{
return [];
}
/**
* Get validation messages.
*
* @return array
*/
protected function messages()
{
return [];
}
/**
* Get create validation messages.
*
* @return array
*
* @deprecated deprecated since v1.12.0, please use messages() instead.
*/
protected function createMessages()
{
return [];
}
/**
* Get custom attributes for validator errors.
*
* @return array
*/
public function attributes()
{
return [];
}
/**
* @param Validator $validator
* @return array
*/
protected function formatErrors(Validator $validator)
{
$errors = [];
collect($validator->errors())->each(function ($error, $key) use (&$errors) {
$errors[] = [
'name' => $key,
'status' => $error[0],
];
});
return $errors;
}
/**
* Process restore action request.
*
* @param \Illuminate\Http\Request $request
* @return \Illuminate\Http\JsonResponse
*/
public function restore(Request $request)
{
$this->restoring = true;
return $this->edit($request);
}
/**
* Process edit action request.
*
* @param Request $request
* @return JsonResponse
*/
public function edit(Request $request)
{
$connection = $this->getBuilder()->getConnection();
$affected = [];
$errors = [];
$connection->beginTransaction();
foreach ($request->get('data') as $key => $data) {
$this->currentData = $data;
$model = $this->getBuilder()->findOrFail($key);
$validator = $this->getValidationFactory()
->make(
$data,
$this->editRules($model), $this->messages() + $this->editMessages(),
$this->attributes()
);
if ($validator->fails()) {
foreach ($this->formatErrors($validator) as $error) {
$errors[] = $error;
}
continue;
}
if (method_exists($this, 'updating')) {
$data = $this->updating($model, $data);
}
if (method_exists($this, 'saving')) {
$data = $this->saving($model, $data);
}
$this->restoring ? $model->restore() : $model->fill($data)->save();
if (method_exists($this, 'updated')) {
$model = $this->updated($model, $data);
}
if (method_exists($this, 'saved')) {
$model = $this->saved($model, $data);
}
$model->setAttribute('DT_RowId', $model->getKey());
$affected[] = $model;
}
if (! $errors) {
$connection->commit();
} else {
$connection->rollBack();
}
return $this->toJson($affected, $errors);
}
/**
* Get elqouent builder of the model.
*
* @return \Illuminate\Database\Eloquent\Builder
*/
protected function getBuilder()
{
$model = $this->resolveModel();
if (in_array(SoftDeletes::class, class_uses($model))) {
return $model->newQuery()->withTrashed();
}
return $model->newQuery();
}
/**
* Get edit action validation rules.
*
* @param Model $model
* @return array
*/
public function editRules(Model $model)
{
return [];
}
/**
* Get edit validation messages.
*
* @return array
*
* @deprecated deprecated since v1.12.0, please use messages() instead.
*/
protected function editMessages()
{
return [];
}
/**
* Process force delete action request.
*
* @param \Illuminate\Http\Request $request
* @return \Illuminate\Http\JsonResponse
*
* @throws \Exception
*/
public function forceDelete(Request $request)
{
$this->forceDeleting = true;
return $this->remove($request);
}
/**
* Process remove action request.
*
* @param Request $request
* @return JsonResponse
*
* @throws \Exception
*/
public function remove(Request $request)
{
$connection = $this->getBuilder()->getConnection();
$affected = [];
$errors = [];
$connection->beginTransaction();
foreach ($request->get('data') as $key => $data) {
$this->currentData = $data;
$model = $this->getBuilder()->findOrFail($key);
$validator = $this->getValidationFactory()
->make(
$data,
$this->removeRules($model), $this->messages() + $this->removeMessages(),
$this->attributes()
);
if ($validator->fails()) {
foreach ($this->formatErrors($validator) as $error) {
$errors[] = $error['status'];
}
continue;
}
try {
$deleted = clone $model;
if (method_exists($this, 'deleting')) {
$this->deleting($model, $data);
}
$this->forceDeleting ? $model->forceDelete() : $model->delete();
if (method_exists($this, 'deleted')) {
$this->deleted($deleted, $data);
}
} catch (QueryException $exception) {
$error = config('app.debug')
? $exception->getMessage()
: $this->removeExceptionMessage($exception, $model);
$errors[] = $error;
}
$affected[] = $deleted;
}
if (! $errors) {
$connection->commit();
} else {
$connection->rollBack();
}
$response = ['data' => $affected];
if ($errors) {
$response['error'] = implode("\n", $errors);
}
return $this->toJson($affected, [], $errors ?? '');
}
/**
* Get remove action validation rules.
*
* @param Model $model
* @return array
*/
public function removeRules(Model $model)
{
return [];
}
/**
* Get remove validation messages.
*
* @return array
*
* @deprecated deprecated since v1.12.0, please use messages() instead.
*/
protected function removeMessages()
{
return [];
}
/**
* Get remove query exception message.
*
* @param QueryException $exception
* @param Model $model
* @return string
*/
protected function removeExceptionMessage(QueryException $exception, Model $model)
{
return "Record {$model->getKey()} is protected and cannot be deleted!";
}
/**
* Get dataTables model.
*
* @return Model
*/
public function getModel()
{
return $this->model;
}
/**
* Set the dataTables model on runtime.
*
* @param Model|string $model
* @return DataTablesEditor
*/
public function setModel($model)
{
$this->model = $model;
return $this;
}
/**
* Set model unguard state.
*
* @param bool $state
* @return $this
*/
public function unguard($state = true)
{
$this->unguarded = $state;
return $this;
}
/**
* Handle uploading of file.
*
* @param \Illuminate\Http\Request $request
* @return \Illuminate\Http\JsonResponse
*/
public function upload(Request $request)
{
$field = $request->input('uploadField');
$storage = $this->getDisk();
try {
$rules = $this->uploadRules();
$fieldRules = ['upload' => $rules[$field] ?? []];
$this->validate($request, $fieldRules, $this->messages(), $this->attributes());
$uploadedFile = $request->file('upload');
$id = $this->storeUploadedFile($field, $uploadedFile);
if (method_exists($this, 'uploaded')) {
$id = $this->uploaded($id);
}
return response()->json([
'action' => $this->action,
'data' => [],
'files' => [
'files' => [
$id => [
'filename' => $id,
'original_name' => $uploadedFile->getClientOriginalName(),
'size' => $uploadedFile->getSize(),
'directory' => $this->getUploadDirectory(),
'disk' => $this->disk,
'url' => $storage->url($id),
],
],
],
'upload' => [
'id' => $id,
],
]);
} catch (ValidationException $exception) {
return response()->json([
'action' => $this->action,
'data' => [],
'fieldErrors' => [
[
'name' => $field,
'status' => str_replace('upload', $field, $exception->errors()['upload'][0]),
],
],
]);
}
}
/**
* Upload validation rules.
*
* @return array
*/
public function uploadRules()
{
return [];
}
/**
* @param string $field
* @param UploadedFile $uploadedFile
* @return string
*/
protected function getUploadedFilename($field, UploadedFile $uploadedFile)
{
return date('Ymd_His') . '_' . $uploadedFile->getClientOriginalName();
}
/**
* @return string
*/
protected function getUploadDirectory()
{
return $this->uploadDir;
}
/**
* @return \Illuminate\Contracts\Filesystem\Filesystem|\Illuminate\Filesystem\FilesystemAdapter
*/
protected function getDisk()
{
return Storage::disk($this->disk);
}
/**
* @param string $field
* @param UploadedFile $uploadedFile
* @return false|string
*/
protected function storeUploadedFile($field, UploadedFile $uploadedFile)
{
$filename = $this->getUploadedFilename($field, $uploadedFile);
return $this->getDisk()->putFileAs($this->getUploadDirectory(), $uploadedFile, $filename);
}
}