[增添]添加了datasource的setting数据库以及默认值

vendor/league/csv/src/Serializer/CastToEnum.php

@@ -0,0 +1,127 @@
+<?php
+
+/**
+ * League.Csv (https://csv.thephpleague.com)
+ *
+ * (c) Ignace Nyamagana Butera <nyamsprod@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+declare(strict_types=1);
+
+namespace League\Csv\Serializer;
+
+use BackedEnum;
+use ReflectionEnum;
+use ReflectionParameter;
+use ReflectionProperty;
+use Throwable;
+use UnitEnum;
+
+/**
+ * @implements TypeCasting<BackedEnum|UnitEnum|null>
+ */
+class CastToEnum implements TypeCasting
+{
+    private readonly bool $isNullable;
+    private readonly Type $type;
+    private ?UnitEnum $default = null;
+    private readonly string $propertyName;
+    /** @var class-string<UnitEnum|BackedEnum> */
+    private string $class;
+
+    /**
+     * @throws MappingFailed
+     */
+    public function __construct(ReflectionProperty|ReflectionParameter $reflectionProperty)
+    {
+        [$this->type, $this->class, $this->isNullable] = $this->init($reflectionProperty);
+        $this->propertyName = $reflectionProperty->getName();
+    }
+
+    /**
+     * @param ?class-string<UnitEnum|BackedEnum> $className *
+     *
+     * @throws MappingFailed
+     */
+    public function setOptions(?string $default = null, ?string $className = null): void
+    {
+        if (Type::Mixed->equals($this->type) || in_array($this->class, [BackedEnum::class , UnitEnum::class], true)) {
+            if (null === $className || !enum_exists($className)) {
+                throw new MappingFailed('`'.$this->propertyName.'` type is `'.($this->class ?? 'mixed').'` but the specified class via the `$className` argument is invalid or could not be found.');
+            }
+
+            $this->class = $className;
+        }
+
+        try {
+            $this->default = (null !== $default) ? $this->cast($default) : $default;
+        } catch (TypeCastingFailed $exception) {
+            throw new MappingFailed(message:'The `default` option is invalid.', previous: $exception);
+        }
+    }
+
+    /**
+     * @throws TypeCastingFailed
+     */
+    public function toVariable(?string $value): BackedEnum|UnitEnum|null
+    {
+        return match (true) {
+            null !== $value => $this->cast($value),
+            $this->isNullable => $this->default,
+            default => throw TypeCastingFailed::dueToNotNullableType($this->class),
+        };
+    }
+
+    /**
+     * @throws TypeCastingFailed
+     */
+    private function cast(string $value): BackedEnum|UnitEnum
+    {
+        try {
+            $enum = new ReflectionEnum($this->class);
+            if (!$enum->isBacked()) {
+                return $enum->getCase($value)->getValue();
+            }
+
+            $backedValue = 'int' === $enum->getBackingType()->getName() ? filter_var($value, Type::Int->filterFlag()) : $value;
+
+            return $this->class::from($backedValue); /* @phpstan-ignore-line */
+        } catch (Throwable $exception) {
+            throw throw TypeCastingFailed::dueToInvalidValue($value, $this->class, $exception);
+        }
+    }
+
+    /**
+     * @return array{0:Type, 1:class-string<UnitEnum|BackedEnum>, 2:bool}
+     */
+    private function init(ReflectionProperty|ReflectionParameter $reflectionProperty): array
+    {
+        if (null === $reflectionProperty->getType()) {
+            return [Type::Mixed, UnitEnum::class, true];
+        }
+
+        $type = null;
+        $isNullable = false;
+        foreach (Type::list($reflectionProperty) as $found) {
+            if (!$isNullable && $found[1]->allowsNull()) {
+                $isNullable = true;
+            }
+
+            if (null === $type && $found[0]->isOneOf(Type::Mixed, Type::Enum)) {
+                $type = $found;
+            }
+        }
+
+        if (null === $type) {
+            throw throw MappingFailed::dueToTypeCastingUnsupportedType($reflectionProperty, $this, 'enum', 'mixed');
+        }
+
+        /** @var class-string<UnitEnum|BackedEnum> $className */
+        $className = $type[1]->getName();
+
+        return [$type[0], $className, $isNullable];
+    }
+}