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修复DynamicEntity特性构造函数实例化问题

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This commit is contained in:
d4ilys
2023-08-17 11:51:36 +08:00
parent eea1d46615
commit c9aa3353fb
2 changed files with 62 additions and 8 deletions
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27
FreeSql/Extensions/DynamicEntityExtensions.cs
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@ -49,6 +49,7 @@ public static class FreeSqlGlobalDynamicEntityExtensions
{
defaultValueInit.Invoke(instance, new object[0]);
}
foreach (var key in table.ColumnsByCs.Keys)
{
if (dict.ContainsKey(key) == false) continue;
@ -187,22 +188,32 @@ namespace FreeSql.Extensions.DynamicEntity
if (tableAttribute == null) continue;
var classCtorInfo = tableAttribute.GetType().GetConstructor(Type.EmptyTypes);
var classCtorInfos = tableAttribute.GetType().GetConstructors();
var propertyInfos = tableAttribute.GetType().GetProperties().Where(p => p.CanWrite == true).ToArray();
foreach (var propertyInfo in propertyInfos)
propertyValues.Add(propertyInfo.GetValue(tableAttribute));
//可能存在有参构造
if (classCtorInfo == null)
//是否存在有参构造函数
var existConstructorArguments = classCtorInfos.Any(c => c.GetParameters().Length > 0);
if (existConstructorArguments)
{
var constructorTypes = propertyInfos.Select(p => p.PropertyType);
classCtorInfo = tableAttribute.GetType().GetConstructor(constructorTypes.ToArray());
var customAttributeBuilder = new CustomAttributeBuilder(classCtorInfo, propertyValues.ToArray());
var defaultParamsCtor = classCtorInfos.Where(c => c.GetParameters().Length > 0)
.OrderBy(c => c.GetParameters().Length).First();
//获取参数默认值
var defaultParams = new List<object>();
foreach (var parameterInfo in defaultParamsCtor.GetParameters())
{
defaultParams.Add(parameterInfo.ParameterType.CreateInstanceGetDefaultValue());
}
//思路：先通过构造函数的默认值实例化对象，然后通过属性的方式赋值
var customAttributeBuilder = new CustomAttributeBuilder(defaultParamsCtor, defaultParams.ToArray(),
propertyInfos,
propertyValues.ToArray());
typeBuilder.SetCustomAttribute(customAttributeBuilder);
}
else
{
//不存在构造函数赋值直接属性赋值
var customAttributeBuilder = new CustomAttributeBuilder(classCtorInfo, new object[0], propertyInfos,
propertyValues.ToArray());
typeBuilder.SetCustomAttribute(customAttributeBuilder);