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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
using System.ComponentModel.DataAnnotations;
using System.Globalization;
using Microsoft.AspNetCore.Mvc.ModelBinding.Validation;
using Microsoft.Extensions.Localization;
namespace Microsoft.AspNetCore.Mvc.DataAnnotations;
internal sealed class StringLengthAttributeAdapter : AttributeAdapterBase<StringLengthAttribute>
{
private readonly string _max;
private readonly string _min;
public StringLengthAttributeAdapter(StringLengthAttribute attribute, IStringLocalizer? stringLocalizer)
: base(attribute, stringLocalizer)
{
_max = Attribute.MaximumLength.ToString(CultureInfo.InvariantCulture);
_min = Attribute.MinimumLength.ToString(CultureInfo.InvariantCulture);
}
/// <inheritdoc />
public override void AddValidation(ClientModelValidationContext context)
{
ArgumentNullException.ThrowIfNull(context);
MergeAttribute(context.Attributes, "data-val", "true");
MergeAttribute(context.Attributes, "data-val-length", GetErrorMessage(context));
if (Attribute.MaximumLength != int.MaxValue)
{
MergeAttribute(context.Attributes, "data-val-length-max", _max);
}
if (Attribute.MinimumLength != 0)
{
MergeAttribute(context.Attributes, "data-val-length-min", _min);
}
}
/// <inheritdoc />
public override string GetErrorMessage(ModelValidationContextBase validationContext)
{
ArgumentNullException.ThrowIfNull(validationContext);
return GetErrorMessage(
validationContext.ModelMetadata,
validationContext.ModelMetadata.GetDisplayName(),
Attribute.MaximumLength,
Attribute.MinimumLength);
}
}
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