/// <summary>
/// Creates a new instance of the LocalizedErrorMessageSource class using the specified resource name and resource type.
/// </summary>
/// <param name="resourceType">The resource type</param>
/// <param name="resourceName">The resource name</param>
/// <param name="resourceAccessorBuilder">Strategy used to construct the resource accessor</param>
public LocalizedStringSource(Type resourceType, string resourceName, IResourceAccessorBuilder resourceAccessorBuilder) {
var resourceAccessor = resourceAccessorBuilder.GetResourceAccessor(resourceType, resourceName);
this.resourceType = resourceAccessor.ResourceType;
this.resourceName = resourceAccessor.ResourceName;
this.accessor = resourceAccessor.Accessor;
}
/// <summary>
/// Creates a new instance of the LocalizedErrorMessageSource class using the specified resource name and resource type.
/// </summary>
/// <param name="resourceType">The resource type</param>
/// <param name="resourceName">The resource name</param>
/// <param name="resourceAccessorBuilder">Strategy used to construct the resource accessor</param>
public LocalizedStringSource(Type resourceType, string resourceName, IResourceAccessorBuilder resourceAccessorBuilder)
{
var resourceAccessor = resourceAccessorBuilder.GetResourceAccessor(resourceType, resourceName);
this.resourceType = resourceAccessor.ResourceType;
this.resourceName = resourceAccessor.ResourceName;
this.accessor = resourceAccessor.Accessor;
}
/// <summary>
/// Specifies a localized name for the error message.
/// </summary>
/// <param name="rule">The current rule</param>
/// <param name="resourceSelector">The resource to use as an expression, eg () => Messages.MyResource</param>
/// <param name="resourceAccessorBuilder">Resource accessor builder to use</param>
public static IRuleBuilderOptions <T, TProperty> WithLocalizedName <T, TProperty>(this IRuleBuilderOptions <T, TProperty> rule, Expression <Func <string> > resourceSelector, IResourceAccessorBuilder resourceAccessorBuilder = null)
{
resourceSelector.Guard("A resource selector must be specified.");
// default to the static resource accessor builder - explicit resources configured with WithLocalizedName should take precedence over ResourceProviderType.
resourceAccessorBuilder = resourceAccessorBuilder ?? new StaticResourceAccessorBuilder();
return(rule.Configure(config => {
config.DisplayName = LocalizedStringSource.CreateFromExpression(resourceSelector, resourceAccessorBuilder);
}));
}
/// <summary>
/// Specifies a custom error message resource to use when validation fails.
/// </summary>
/// <param name="rule">The current rule</param>
/// <param name="resourceSelector">The resource to use as an expression, eg () => Messages.MyResource</param>
/// <param name="resourceAccessorBuilder">The resource accessor builder to use. </param>
/// <returns></returns>
public static IRuleBuilderOptions <T, TProperty> WithLocalizedMessage <T, TProperty>(this IRuleBuilderOptions <T, TProperty> rule, Expression <Func <string> > resourceSelector, IResourceAccessorBuilder resourceAccessorBuilder)
{
resourceSelector.Guard("An expression must be specified when calling WithLocalizedMessage, eg .WithLocalizedMessage(() => Messages.MyResource)");
return(rule.Configure(config => {
config.CurrentValidator.ErrorMessageSource = LocalizedStringSource.CreateFromExpression(resourceSelector, resourceAccessorBuilder);
}));
}
/// <summary>
/// Creates an IErrorMessageSource from an expression: () => MyResources.SomeResourceName
/// </summary>
/// <param name="expression">The expression </param>
/// <param name="resourceProviderSelectionStrategy">Strategy used to construct the resource accessor</param>
/// <returns>Error message source</returns>
public static IStringSource CreateFromExpression(Expression<Func<string>> expression, IResourceAccessorBuilder resourceProviderSelectionStrategy) {
var constant = expression.Body as ConstantExpression;
if (constant != null) {
return new StaticStringSource((string)constant.Value);
}
var member = expression.GetMember();
if (member == null) {
throw new InvalidOperationException("Only MemberExpressions an be passed to BuildResourceAccessor, eg () => Messages.MyResource");
}
var resourceType = member.DeclaringType;
var resourceName = member.Name;
return new LocalizedStringSource(resourceType, resourceName, resourceProviderSelectionStrategy);
}
