/// <summary>
/// 校验约束
/// </summary>
/// <param name="orderConditionArguments"></param>
/// <param name="orderConditionFilterAttributeList"></param>
/// <returns></returns>
public virtual OrderConditionArguments ApplyFilter(OrderConditionArguments orderConditionArguments,
List <OrderConditionFilterAttribute> orderConditionFilterAttributeList = null)
{
if (orderConditionArguments == null)
{
throw new ArgumentNullException(nameof(orderConditionArguments));
}
//没有过滤器约束则不进行任何处理
if (orderConditionFilterAttributeList == null || orderConditionFilterAttributeList.Count == 0)
{
return(orderConditionArguments);
}
orderConditionFilterAttributeList = orderConditionFilterAttributeList ?? new List <OrderConditionFilterAttribute>();
List <OrderCondition> removeList = new List <OrderCondition>();
foreach (OrderCondition item in orderConditionArguments)
{
if (!orderConditionFilterAttributeList.Any(f
=> //若当前被审查元素不满足以下条件，则应被过滤
(f.ColumnName == null || f.ColumnName.Contains(item.ColumnName)) //未定义或者已包含
&&
(f.AllowOrderMode & item.OrderMode) == item.OrderMode) //允许的匹配模式能够匹配
)
{
removeList.Add(item);
}
}
removeList.ForEach(item => orderConditionArguments.Remove(item));
return(orderConditionArguments);
}
public async Task BindModelAsync(ModelBindingContext bindingContext)
{
if (bindingContext == null)
{
throw new ArgumentNullException(nameof(bindingContext));
}
string modelName = bindingContext.BinderModelName;
if (string.IsNullOrEmpty(modelName))
{
modelName = bindingContext.ModelMetadata.Name;
}
ValueProviderResult valueProviderResult = bindingContext.ValueProvider.GetValue(modelName);
if (valueProviderResult == ValueProviderResult.None)
{
await Task.CompletedTask;
return;
}
bindingContext.ModelState.SetModelValue(modelName, valueProviderResult);
string requestString = valueProviderResult.FirstValue;
if (string.IsNullOrEmpty(requestString))
{
await Task.CompletedTask;
return;
}
if (!requestString.StartsWith("["))
{
requestString = $"[{requestString}]";
}
OrderConditionArguments orderConditionArguments = JsonConvert.DeserializeObject(requestString, bindingContext.ModelType) as OrderConditionArguments;
try
{
IEnumerable <OrderConditionFilterAttribute> orderConditionFilterAttribute = ((DefaultModelMetadata)bindingContext.ModelMetadata).Attributes.ParameterAttributes
.Where(attr => attr.GetType() == typeof(OrderConditionFilterAttribute)).Select(attr => attr as OrderConditionFilterAttribute);
OrderConditionArgumentsInterpreter orderConditionArgumentsInterpret = new OrderConditionArgumentsInterpreter();
orderConditionArguments = orderConditionArgumentsInterpret.ApplyFilter(orderConditionArguments, orderConditionFilterAttribute.ToList());
}
catch (Exception ex)
{
bindingContext.ModelState.TryAddModelError(bindingContext.ModelName, ex.Message);
await Task.CompletedTask;
return;
}
bindingContext.Result = ModelBindingResult.Success(orderConditionArguments);
await Task.CompletedTask;
return;
}
