69 lines
2.7 KiB
C#
69 lines
2.7 KiB
C#
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// Admin.NET 项目的版权、商标、专利和其他相关权利均受相应法律法规的保护。使用本项目应遵守相关法律法规和许可证的要求。
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//
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// 本项目主要遵循 MIT 许可证和 Apache 许可证（版本 2.0）进行分发和使用。许可证位于源代码树根目录中的 LICENSE-MIT 和 LICENSE-APACHE 文件。
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//
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// 不得利用本项目从事危害国家安全、扰乱社会秩序、侵犯他人合法权益等法律法规禁止的活动！任何基于本项目二次开发而产生的一切法律纠纷和责任，我们不承担任何责任！
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namespace Admin.NET.Core;
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/// <summary>
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/// 字典值合规性校验特性
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/// </summary>
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[SuppressSniffer]
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[AttributeUsage(AttributeTargets.Property | AttributeTargets.Field, AllowMultiple = true, Inherited = true)]
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public class DictAttribute : ValidationAttribute, ITransient
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{
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/// <summary>
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/// 字典值合规性校验特性
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/// </summary>
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/// <param name="dictTypeCode"></param>
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/// <param name="errorMessage"></param>
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public DictAttribute(string dictTypeCode, string errorMessage = "字典值不合法！")
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{
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DictTypeCode = dictTypeCode;
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ErrorMessage = errorMessage;
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}
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/// <summary>
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/// 字典值合规性校验
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/// </summary>
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/// <param name="value"></param>
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/// <param name="validationContext"></param>
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/// <returns></returns>
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protected override ValidationResult IsValid(object? value, ValidationContext validationContext)
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{
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var valueAsString = value?.ToString();
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// 判断是否允许空值
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if (AllowNullValue && value == null) return ValidationResult.Success;
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// 是否忽略空字符串
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if (AllowEmptyStrings && string.IsNullOrEmpty(valueAsString)) return ValidationResult.Success;
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var sysDictDataServiceProvider = App.GetRequiredService<SysDictDataService>();
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var dictDataList = sysDictDataServiceProvider.GetDataList(DictTypeCode).Result;
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// 使用HashSet来提高查找效率
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var dictCodes = new HashSet<string>(dictDataList.Select(u => u.Code));
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if (!dictCodes.Contains(valueAsString))
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return new ValidationResult($"提示：{ErrorMessage}|字典【{DictTypeCode}】不包含【{valueAsString}】！");
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else
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return ValidationResult.Success;
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}
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/// <summary>
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/// 字典编码
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/// </summary>
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public string DictTypeCode { get; set; }
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/// <summary>
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/// 是否允许空字符串
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/// </summary>
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public bool AllowEmptyStrings { get; set; } = false;
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/// <summary>
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/// 允许空值，有值才验证，默认 false
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/// </summary>
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public bool AllowNullValue { get; set; } = false;
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}
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