45 lines
1.6 KiB
C#
45 lines
1.6 KiB
C#
using FluentValidation;
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using Stylet;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading;
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using System.Threading.Tasks;
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namespace StyletFirstValidation
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{
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public class FluentModelValidator<T> : IModelValidator<T>
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{
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private readonly IValidator<T> validator;
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private T subject;
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public FluentModelValidator(IValidator<T> validator)
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{
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this.validator = validator;
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}
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public void Initialize(object subject)
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{
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this.subject = (T)subject;
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}
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public async Task<IEnumerable<string>> ValidatePropertyAsync(string propertyName)
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{
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// If someone's calling us synchronously, and ValidationAsync does not complete synchronously,
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// we'll deadlock unless we continue on another thread.
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return (await this.validator.ValidateAsync(this.subject, o=>o.IncludeProperties(propertyName), CancellationToken.None).ConfigureAwait(false))
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.Errors.Select(x => x.ErrorMessage);
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}
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public async Task<Dictionary<string, IEnumerable<string>>> ValidateAllPropertiesAsync()
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{
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// If someone's calling us synchronously, and ValidationAsync does not complete synchronously,
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// we'll deadlock unless we continue on another thread.
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return (await this.validator.ValidateAsync(this.subject).ConfigureAwait(false))
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.Errors.GroupBy(x => x.PropertyName)
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.ToDictionary(x => x.Key, x => x.Select(failure => failure.ErrorMessage));
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}
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}
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}
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