excel sheet validation in laravel - laravel

Question

I using laravel excel Maatwebsite.
public function collection(Collection $rows)
{
Validator::make($rows->toArray(), [
'*.price' => 'numeric',
])->validate();
}
I need output
Excel Row No not array number
Row No 1.price must be a number.

Answer 1

as I understand you need to validate uploaded excel rows.
the package excel Maatwebsite provided validation rules feature too.
in your import class you need to add WithValidation, WithHeadingRow interface and rules mothod. in this way uploaded excel will be validated before insert into database:
namespace App\Imports;
use App\User;
use Maatwebsite\Excel\Concerns\ToModel;
use Maatwebsite\Excel\Validators\Failure;
use Maatwebsite\Excel\Concerns\Importable;
use Maatwebsite\Excel\Concerns\SkipsOnFailure;
use Maatwebsite\Excel\Concerns\WithValidation;
use Maatwebsite\Excel\Concerns\SkipsFailures;
class UsersImport implements ToModel, WithValidation, WithHeadingRow,SkipsOnFailure
{
use Importable,SkipsFailures;
public function model(array $row)
{
return new User([
'name' => $row['name'],
'email' => $row['email'],
'password' => 'secret',
]);
}
public function rules(): array
{
return [
'email' => Rule::in(['patrick#maatwebsite.nl']),
// Above is alias for as it always validates in batches
'*.email' => Rule::in(['patrick#maatwebsite.nl']),
];
}
}
and to gather errors:
$import = new UsersImport();
$import->import('users.xlsx');
$failures= $import->failures() ;
foreach ($failures as $failure) {
$failure->row(); // row that went wrong
$failure->attribute(); // either heading key (if using heading row concern) or column index
$failure->errors(); // Actual error messages from Laravel validator
$failure->values(); // The values of the row that has failed.
}
now $failures contains all validation error in all rows

Answer 2

This example use interface Validator that take different arguments to initialize; (array $data, array $rules, array $messages, array $customAttributes) to validate rows and referenced from web sources, do not implement ToModel concern and is similar to the example showed in the question.
namespace App\Imports;
use App\User;
use Illuminate\Support\Collection;
use Illuminate\Support\Facades\Validator;
use Maatwebsite\Excel\Concerns\ToCollection;
class UsersImport implements ToCollection
{
public function collection(Collection $rows)
{
Validator::make($rows->toArray(), [
'*.0' => 'required',
])->validate();
foreach ($rows as $row) {
User::create([
'name' => $row[0],
]);
}
}
}
Another scenario like defined a custom data or Excel file like the following, suppose you want to access specific cells, you can implement the WithMappedCells concern.
index
user
date
subscription
0
user
2022-12-08
true
1
user
2022-12-08
true
2
user
2022-12-08
false
3
user
2022-12-08
true
use App\User;
use Maatwebsite\Excel\Concerns\ToModel;
use Maatwebsite\Excel\Concerns\WithMappedCells;
class UsersImport implements WithMappedCells, ToModel
{
public function mapping(): array
{
return [
'index' => 'B1',
'user' => 'B2',
'date' => 'B3',
'subscription' => 'B4',
];
}
public function model(array $row)
{
return new User([
'index' => $row['index'],
'user' => $row['user'],
'date' => $row['date'],
'subscription' => $row['subscription']
]);
}
}