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

src/Entity/Parts/Supplier.php

@@ -54,7 +54,10 @@ use App\Entity\Attachments\SupplierAttachment;
 use App\Entity\Base\AbstractCompany;
 use App\Entity\Parameters\SupplierParameter;
 use App\Entity\PriceInformations\Currency;
+use App\Validator\Constraints\BigDecimal\BigDecimalPositiveOrZero;
 use App\Validator\Constraints\Selectable;
+use Brick\Math\BigDecimal;
+use Brick\Math\BigNumber;
 use Doctrine\Common\Collections\Collection;
 use Doctrine\ORM\Mapping as ORM;
 use Symfony\Component\Validator\Constraints as Assert;
@@ -94,9 +97,9 @@ class Supplier extends AbstractCompany
     protected $default_currency;
 
     /**
-     * @var string|null the shipping costs that have to be paid, when ordering via this supplier
-     * @ORM\Column(name="shipping_costs", nullable=true, type="decimal", precision=11, scale=5)
-     * @Assert\PositiveOrZero()
+     * @var BigDecimal|null the shipping costs that have to be paid, when ordering via this supplier
+     * @ORM\Column(name="shipping_costs", nullable=true, type="big_decimal", precision=11, scale=5)
+     * @BigDecimalPositiveOrZero()
      */
     protected $shipping_costs;
 
@@ -140,9 +143,9 @@ class Supplier extends AbstractCompany
     /**
      * Gets the shipping costs for an order with this supplier, given in base currency.
      *
-     * @return string|null A bcmath string with the shipping costs
+     * @return BigDecimal|null A BigDecimal with the shipping costs
      */
-    public function getShippingCosts(): ?string
+    public function getShippingCosts(): ?BigDecimal
     {
         return $this->shipping_costs;
     }
@@ -150,17 +153,13 @@ class Supplier extends AbstractCompany
     /**
      * Sets the shipping costs for an order with this supplier.
      *
-     * @param string|null $shipping_costs a bcmath string with the shipping costs
+     * @param string|null $shipping_costs a BigDecimal with the shipping costs
      *
      * @return Supplier
      */
-    public function setShippingCosts(?string $shipping_costs): self
+    public function setShippingCosts(?BigDecimal $shipping_costs): self
     {
-        /* Just a little hack to ensure that price has 5 digits after decimal point,
-         so that DB does not detect changes, when something like 0.4 is passed
-         Third parameter must have the scale value of decimal column. */
-        $this->shipping_costs = bcmul($shipping_costs, '1.0', 5);
-
+        $this->shipping_costs = $shipping_costs;
         return $this;
     }
 }

src/Form/AdminPages/SupplierForm.php

@@ -44,6 +44,7 @@ namespace App\Form\AdminPages;
 
 use App\Entity\Base\AbstractNamedDBElement;
 use App\Entity\PriceInformations\Currency;
+use App\Form\Type\BigDecimalMoneyType;
 use App\Form\Type\StructuralEntityType;
 use Symfony\Component\Form\Extension\Core\Type\MoneyType;
 use Symfony\Component\Form\FormBuilderInterface;
@@ -73,7 +74,7 @@ class SupplierForm extends CompanyForm
             'disabled' => ! $this->security->isGranted($is_new ? 'create' : 'move', $entity),
         ]);
 
-        $builder->add('shipping_costs', MoneyType::class, [
+        $builder->add('shipping_costs', BigDecimalMoneyType::class, [
             'required' => false,
             'currency' => $this->default_currency,
             'scale' => 3,

src/Form/Type/BigDecimalMoneyType.php

@@ -0,0 +1,65 @@
+<?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\Form\Type;
+
+
+use Brick\Math\BigDecimal;
+use Brick\Math\BigNumber;
+use Symfony\Component\Form\AbstractType;
+use Symfony\Component\Form\DataTransformerInterface;
+use Symfony\Component\Form\Exception\TransformationFailedException;
+use Symfony\Component\Form\Extension\Core\Type\MoneyType;
+use Symfony\Component\Form\FormBuilderInterface;
+
+class BigDecimalMoneyType extends AbstractType implements DataTransformerInterface
+{
+    public function buildForm(FormBuilderInterface $builder, array $options)
+    {
+        $builder->addModelTransformer($this);
+    }
+
+    public function getParent()
+    {
+        return MoneyType::class;
+    }
+
+    public function transform($value)
+    {
+        if ($value === null) {
+            return null;
+        }
+
+        if ($value instanceof BigDecimal) {
+            return (string) $value;
+        }
+
+        return $value;
+    }
+
+    public function reverseTransform($value)
+    {
+        if ($value === null) {
+            return null;
+        }
+
+        return BigDecimal::of($value);
+    }
+}

src/Helpers/BigDecimalType.php

@@ -0,0 +1,74 @@
+<?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\Helpers;
+
+
+use Brick\Math\BigDecimal;
+use Doctrine\DBAL\Platforms\AbstractPlatform;
+use Doctrine\DBAL\Types\Type;
+
+class BigDecimalType extends Type
+{
+    public const BIG_DECIMAL = 'big_decimal';
+
+    public function getSQLDeclaration(array $fieldDeclaration, AbstractPlatform $platform)
+    {
+        return $platform->getDecimalTypeDeclarationSQL($fieldDeclaration);
+    }
+
+    /**
+     * @param  string  $value
+     * @param  AbstractPlatform  $platform
+     * @return BigDecimal|\Brick\Math\BigNumber|mixed
+     */
+    public function convertToPHPValue($value, AbstractPlatform $platform)
+    {
+        if ($value === null) {
+            return null;
+        }
+
+        return BigDecimal::of($value);
+    }
+
+    /**
+     * @param  BigDecimal  $value
+     * @param  AbstractPlatform  $platform
+     * @return mixed
+     */
+    public function convertToDatabaseValue($value, AbstractPlatform $platform)
+    {
+        if ($value === null) {
+            return null;
+        }
+
+        return (string) $value;
+    }
+
+    public function getName()
+    {
+        return self::BIG_DECIMAL;
+    }
+
+    public function requiresSQLCommentHint(AbstractPlatform $platform)
+    {
+        return true;
+    }
+}

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;
+    }
+}