Use BigDecimal object type for Supplier shipping costs, instead of bcmath string.

src/Validator/Constraints/BigDecimal/BigDecimalGreaterThenOrEqualValidator.php

@@ -0,0 +1,59 @@
+<?php
+/**
+ * This file is part of Part-DB (https://github.com/Part-DB/Part-DB-symfony).
+ *
+ * Copyright (C) 2019 - 2020 Jan Böhmer (https://github.com/jbtronics)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published
+ * by the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+namespace App\Validator\Constraints\BigDecimal;
+
+
+use Brick\Math\BigDecimal;
+use Symfony\Component\Validator\Constraints\AbstractComparisonValidator;
+use Symfony\Component\Validator\Constraints\GreaterThanOrEqual;
+
+/**
+ * Validates values are greater than or equal to the previous (>=).
+ *
+ * @author Daniel Holmes <daniel@danielholmes.org>
+ * @author Bernhard Schussek <bschussek@gmail.com>
+ */
+class BigDecimalGreaterThenOrEqualValidator extends AbstractComparisonValidator
+{
+    /**
+     * {@inheritdoc}
+     */
+    protected function compareValues($value1, $value2)
+    {
+        if ($value1 instanceof BigDecimal) {
+            $value1 = (string) $value1;
+        }
+
+        if ($value2 instanceof BigDecimal) {
+            $value2 = (string) $value2;
+        }
+
+        return null === $value2 || $value1 >= $value2;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function getErrorCode()
+    {
+        return GreaterThanOrEqual::TOO_LOW_ERROR;
+    }
+}

src/Validator/Constraints/BigDecimal/BigDecimalPositiveOrZero.php

@@ -0,0 +1,48 @@
+<?php
+/**
+ * This file is part of Part-DB (https://github.com/Part-DB/Part-DB-symfony).
+ *
+ * Copyright (C) 2019 - 2020 Jan Böhmer (https://github.com/jbtronics)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published
+ * by the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+namespace App\Validator\Constraints\BigDecimal;
+
+
+use Symfony\Component\Validator\Constraints\GreaterThanOrEqual;
+use Symfony\Component\Validator\Constraints\NumberConstraintTrait;
+
+/**
+ * @Annotation
+ * @Target({"PROPERTY", "METHOD", "ANNOTATION"})
+ *
+ * @author Jan Schädlich <jan.schaedlich@sensiolabs.de>
+ */
+class BigDecimalPositiveOrZero extends GreaterThanOrEqual
+{
+    use NumberConstraintTrait;
+
+    public $message = 'This value should be either positive or zero.';
+
+    public function __construct($options = null)
+    {
+        parent::__construct($this->configureNumberConstraintOptions($options));
+    }
+
+    public function validatedBy(): string
+    {
+        return BigDecimalGreaterThenOrEqualValidator::class;
+    }
+}