/// <summary>
/// 验证属性的值是否通过
/// </summary>
/// <param name="value">属性的值</param>
/// <param name="validContext">验证上下文</param>
/// <returns></returns>
bool IValidRule.IsValid(object value, ValidContext validContext)
{
var stringValue = value == null ? null : value.ToString();
if (string.IsNullOrWhiteSpace(stringValue) == true)
{
return true;
}
return this.IsValid(stringValue, validContext);
}
/// <summary>
/// 获取验证不通过的第一个规则
/// 都通过则返回null
/// </summary>
/// <param name="context">上下文</param>
/// <returns></returns>
public IValidRule GetFailureRule(ValidContext context)
{
if (this.ValidRules.Length == 0)
{
return(null);
}
var value = this.GetValue(context.Instance);
return(this.ValidRules.FirstOrDefault(r => r.IsValid(value, context) == false));
}
/// <summary>
/// 验证属性的值是否通过
/// </summary>
/// <param name="value">属性的值</param>
/// <param name="validContext">验证上下文</param>
/// <returns></returns>
bool IValidRule.IsValid(object value, ValidContext validContext)
{
var stringValue = value?.ToString();
if (string.IsNullOrWhiteSpace(stringValue) == true)
{
return(true);
}
return(this.IsValid(stringValue, validContext));
}
/// <summary>
/// 验证模型
/// 包括Attribute规则和Fluent规则
/// </summary>
/// <typeparam name="T">模型类型</typeparam>
/// <param name="model">模型实例</param>
/// <returns></returns>
public static ValidResult ValidFor <T>(T model)
{
if (model == null)
{
return(ValidResult.False("模型不能为null .."));
}
var context = new ValidContext(model, RuleProperty.GetGetProperties(typeof(T)));
foreach (var property in context.Properties)
{
var failureRule = property.GetFailureRule(context);
if (failureRule != null)
{
var message = failureRule.FormatErrorMessage(null);
return(ValidResult.False(message, property.Info));
}
}
return(ValidResult.True());
}
/// <summary>
/// 验证模型
/// </summary>
/// <typeparam name="T">模型类型</typeparam>
/// <param name="model">模型实例</param>
/// <returns></returns>
public static ValidResult ValidFor <T>(T model)
{
if (model == null)
{
return(new ValidResult
{
State = false,
ErrorMessage = "模型不能为null .."
});
}
var validContext = new ValidContext
{
Instance = model,
Properties = Property.From(typeof(T))
};
foreach (var property in validContext.Properties)
{
var value = property.GetValue(model);
var failureRule = property.ValidRules.FirstOrDefault(r => r.IsValid(value, validContext) == false);
if (failureRule == null)
{
continue;
}
return(new ValidResult
{
ProperyName = property.Name,
ErrorMessage = failureRule.FormatErrorMessage(null)
});
}
return(new ValidResult {
State = true
});
}
/// <summary>
/// 获取验证不通过的第一个规则
/// 都通过则返回null
/// </summary>
/// <param name="context">上下文</param>
/// <returns></returns>
public IValidRule GetFailureRule(ValidContext context)
{
if (this.ValidRules.Length == 0)
{
return null;
}
var value = this.GetValue(context.Instance);
return this.ValidRules.FirstOrDefault(r => r.IsValid(value, context) == false);
}
/// <summary> /// 验证属性的值是否通过 /// </summary> /// <param name="value">属性的值</param> /// <param name="validContext">验证上下文</param> /// <returns></returns> protected abstract bool IsValid(string value, ValidContext validContext);
/// <summary> /// 验证属性的值是否通过 /// </summary> /// <param name="value">属性的值</param> /// <param name="validContext">验证上下文</param> /// <returns></returns> protected abstract bool IsValid(string value, ValidContext validContext);
