Hello I have this issue where I want to take the input values from textarea1 which will be for example: "300pcs, 200$" on the first line and "500pcs, 400$" and so on, to perform an increase of price based on the number of pieces(I used to have it with inputs and it worked, but I was told I need a textarea). The result of the calculation would be something like : textarea2 "300pcs,220$" and line 2 "500pcs, 540$" increased by the appropriate percentage. My issue is, I need to extract the numbers from every line in the text area to perform the calculation and it doesn't seem to work as thought it would..
declare(strict_types=1);
namespace App\Presenters;
use App\Forms\FormFactory;
use Nette\Application\UI\Form;
use Nette\Database\Context;
use Nette\Utils\ArrayHash;
class HomepagePresenter extends BasePresenter
{
/**
* @var Context
* @inject
*/
public $database;
/**
* @var FormFactory
* @inject
*/
public $formFactory;
protected function createComponentCalculationForm(): Form
{
$form = $this->formFactory->create();
$form->addSelect('supplier', 'Dodavatel:', $this->database->table('suppliers')->fetchPairs('id', 'supp_name'));
$form->addTextArea('user_input');
$form->addSubmit('calculate', 'Spočítat');
$form->addTextArea('result')
->setHtmlAttribute('class', 'totalPrice')
->setHtmlAttribute('readonly');
$form->onSuccess[] = function (Form $form, ArrayHash $values): void {
$selectedSupp = $values->supplier;
$userInput = $values->user_input;
$lines = $array = explode("\n", $userInput);
foreach ($lines as $line) {
preg_match_all('/[\d]+/', $line, $numbers);
list($quantity, $price) = $numbers[0];
}
$modifier = $this->database->fetch('SELECT percentage FROM prices WHERE supplier_id = ? AND max >= ? AND min <= ?', $selectedSupp, $quantity, $quantity);
$total = round($price + ($price / 100) * $modifier->percentage);
$form['result']->setValue("$quantity Ks, $total Kč + DPH");
};
return $form;
}
}
My guess is that you likely might want to write an expression with less boundaries, such as
(?i)(\d+)\s*pcs\s*[,;]*\s*\$?\s*(\d+(?:\.\d*)?|(?:\.\d+))\s*\$?
or if not, for just that same format in the question,
(\d+)pcs,\s(\d+)\$
might simply work.
For testing, you might want to write some function and call it in the loop you wish to do things, such as:
$str = '
300pcs, 200$
301pcs, 201$
301pcs, 201.5$
301.2pcs, 201$
300pcs, 200$
500pcs, 400$
310pcs , 220.22$
550 PCS, 540.5$
301pcs 220.$
502 pcs, .54 $
303 PCS ; $220.6
504 pcs, $540.4
500 pcs, . $';
function extractPiecesPrices($str)
{
$re = '/^(\d+)pcs,\s(\d+)\$$/m';
preg_match_all($re, $str, $matches, PREG_SET_ORDER, 0);
foreach ($matches as $key => $value) {
if ($value[2] != "") {
print($value[2] . " is price\n");
// do some math on prices
}
if ($value[1] != "") {
print($value[1] . " is pcs\n");
// do some math on pieces
}
}
}
extractPiecesPrices($str);
200 is price
300 is pcs
201 is price
301 is pcs
200 is price
300 is pcs
400 is price
500 is pcs