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Validate MemberToCompare and original #187

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Validate MemberToCompare and original #187

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validate compared to
Apr 25, 2023
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Merge branch 'main' into main
StevieTimes Jan 18, 2024
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12 changes: 12 additions & 0 deletions samples/BlazorServer/Pages/Index.razor
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Original file line number Diff line number Diff line change
Expand Up @@ -63,6 +63,18 @@
<ValidationMessage For="@(() => _person.Address.Postcode)" />
</p>

<p>
<label>Start Lucky Number Range: </label>
<InputNumber @bind-Value="@_person.StartLuckyNumberRange" />
<ValidationMessage For="@(() => _person.StartLuckyNumberRange)" />
</p>

<p>
<label>End Lucky Number Range: </label>
<InputNumber @bind-Value="@_person.EndLuckyNumberRange" />
<ValidationMessage For="@(() => _person.EndLuckyNumberRange)" />
</p>

<button type="submit">Save</button>

</EditForm>
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12 changes: 12 additions & 0 deletions samples/BlazorWebAssembly/Pages/Index.razor
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Original file line number Diff line number Diff line change
Expand Up @@ -63,6 +63,18 @@
<ValidationMessage For="@(() => _person.Address.Postcode)" />
</p>

<p>
<label>Start Lucky Number Range: </label>
<InputNumber @bind-Value="@_person.StartLuckyNumberRange" />
<ValidationMessage For="@(() => _person.StartLuckyNumberRange)" />
</p>

<p>
<label>End Lucky Number Range: </label>
<InputNumber @bind-Value="@_person.EndLuckyNumberRange" />
<ValidationMessage For="@(() => _person.EndLuckyNumberRange)" />
</p>

<button type="submit">Save</button>

</EditForm>
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5 changes: 5 additions & 0 deletions samples/Shared/SharedModels/Person.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -9,6 +9,8 @@ public class Person
public int? Age { get; set; }
public string? EmailAddress { get; set; }
public Address Address { get; set; } = new();
public int StartLuckyNumberRange { get; set; }
public int EndLuckyNumberRange { get; set; }
}

public class PersonValidator : AbstractValidator<Person>
Expand Down Expand Up @@ -36,6 +38,9 @@ public PersonValidator()
.EmailAddress().WithMessage("You must provide a valid email address")
.MustAsync(async (email, _) => await IsUniqueAsync(email)).WithMessage("Email address must be unique");

RuleFor(p => p.StartLuckyNumberRange).LessThan(p => p.EndLuckyNumberRange).WithMessage("Start lucky number must be less than end lucky number");
RuleFor(p => p.EndLuckyNumberRange).GreaterThan(p => p.StartLuckyNumberRange).WithMessage("End lucky number must be greater than start lucky number");

RuleFor(p => p.Address).SetValidator(new AddressValidator());
}

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37 changes: 34 additions & 3 deletions src/Blazored.FluentValidation/EditContextFluentValidationExtensions.cs
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Original file line number Diff line number Diff line change
@@ -1,5 +1,6 @@
using FluentValidation;
using FluentValidation.Internal;
using FluentValidation.Validators;
using Microsoft.AspNetCore.Components.Forms;
using Microsoft.Extensions.DependencyInjection;
using static FluentValidation.AssemblyScanner;
Expand Down Expand Up @@ -76,15 +77,45 @@ private static async Task ValidateField(EditContext editContext,
{
var properties = new[] { fieldIdentifier.FieldName };
var context = new ValidationContext<object>(fieldIdentifier.Model, new PropertyChain(), new MemberNameValidatorSelector(properties));

validator ??= GetValidatorForModel(serviceProvider, fieldIdentifier.Model, disableAssemblyScanning);

if (validator is not null)
{
var validationResults = await validator.ValidateAsync(context);
var validationRules = validator as IEnumerable<IValidationRule>;
var members = new List<string>();

messages.Clear(fieldIdentifier);
messages.Add(fieldIdentifier, validationResults.Errors.Select(error => error.ErrorMessage));
if (validationRules != null)
{
foreach (var rule in validationRules)
{
var maybeComparison = rule.Components.FirstOrDefault()?.Validator;

if (maybeComparison != null && maybeComparison is IComparisonValidator comparisonValidator)
{
var compareTo = comparisonValidator.MemberToCompare.Name;
if (!members.Contains(compareTo) && rule.PropertyName == fieldIdentifier.FieldName)
{
members.Add(compareTo);
var newProperties = properties.ToList();
newProperties.Add(compareTo);
properties = newProperties.ToArray();
context = new ValidationContext<object>(fieldIdentifier.Model, new PropertyChain(), new MemberNameValidatorSelector(properties));
validationResults = await validator.ValidateAsync(context);
}
}
else
members.Add(fieldIdentifier.FieldName);
}
}

foreach (var member in members)
{
var field = new FieldIdentifier(fieldIdentifier.Model, member);
messages.Clear(field);
messages.Add(field, validationResults.Errors.Where(x => x.PropertyName == field.FieldName).Select(error => error.ErrorMessage));
}

editContext.NotifyValidationStateChanged();
}
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