/// <summary>
/// Creates a <see cref="PageApplicationModel"/> for the given <paramref name="pageTypeInfo"/>.
/// </summary>
/// <param name="actionDescriptor">The <see cref="PageActionDescriptor"/>.</param>
/// <param name="pageTypeInfo">The <see cref="TypeInfo"/>.</param>
/// <returns>A <see cref="PageApplicationModel"/> for the given <see cref="TypeInfo"/>.</returns>
protected virtual PageApplicationModel CreateModel(
PageActionDescriptor actionDescriptor,
TypeInfo pageTypeInfo)
{
if (actionDescriptor == null)
{
throw new ArgumentNullException(nameof(actionDescriptor));
}
if (pageTypeInfo == null)
{
throw new ArgumentNullException(nameof(pageTypeInfo));
}
if (!typeof(PageBase).GetTypeInfo().IsAssignableFrom(pageTypeInfo))
{
throw new InvalidOperationException(Resources.FormatInvalidPageType_WrongBase(
pageTypeInfo.FullName,
typeof(PageBase).FullName));
}
// Pages always have a model type. If it's not set explicitly by the developer using
// @model, it will be the same as the page type.
var modelProperty = pageTypeInfo.GetProperty(ModelPropertyName, BindingFlags.Public | BindingFlags.Instance);
if (modelProperty == null)
{
throw new InvalidOperationException(Resources.FormatInvalidPageType_NoModelProperty(
pageTypeInfo.FullName,
ModelPropertyName));
}
var modelTypeInfo = modelProperty.PropertyType.GetTypeInfo();
var declaredModelType = modelTypeInfo;
// Now we want figure out which type is the handler type.
TypeInfo handlerType;
if (modelProperty.PropertyType.IsDefined(typeof(PageModelAttribute), inherit: true))
{
handlerType = modelTypeInfo;
}
else
{
handlerType = pageTypeInfo;
}
var handlerTypeAttributes = handlerType.GetCustomAttributes(inherit: true);
var pageModel = new PageApplicationModel(
actionDescriptor,
declaredModelType,
handlerType,
handlerTypeAttributes)
{
PageType = pageTypeInfo,
ModelType = modelTypeInfo,
};
PopulateHandlerMethods(pageModel);
PopulateHandlerProperties(pageModel);
PopulateFilters(pageModel);
return(pageModel);
}
/// <summary>
/// Creates a <see cref="PageApplicationModel"/> for the given <paramref name="pageTypeInfo"/>.
/// </summary>
/// <param name="actionDescriptor">The <see cref="PageActionDescriptor"/>.</param>
/// <param name="pageTypeInfo">The <see cref="TypeInfo"/>.</param>
/// <returns>A <see cref="PageApplicationModel"/> for the given <see cref="TypeInfo"/>.</returns>
private PageApplicationModel CreateModel(
PageActionDescriptor actionDescriptor,
TypeInfo pageTypeInfo)
{
if (actionDescriptor == null)
{
throw new ArgumentNullException(nameof(actionDescriptor));
}
if (pageTypeInfo == null)
{
throw new ArgumentNullException(nameof(pageTypeInfo));
}
if (!typeof(PageBase).GetTypeInfo().IsAssignableFrom(pageTypeInfo))
{
throw new InvalidOperationException(Resources.FormatInvalidPageType_WrongBase(
pageTypeInfo.FullName,
typeof(PageBase).FullName));
}
// Pages always have a model type. If it's not set explicitly by the developer using
// @model, it will be the same as the page type.
var modelProperty = pageTypeInfo.GetProperty(ModelPropertyName, BindingFlags.Public | BindingFlags.Instance);
if (modelProperty == null)
{
throw new InvalidOperationException(Resources.FormatInvalidPageType_NoModelProperty(
pageTypeInfo.FullName,
ModelPropertyName));
}
var modelTypeInfo = modelProperty.PropertyType.GetTypeInfo();
var declaredModelType = modelTypeInfo;
// Now we want figure out which type is the handler type.
TypeInfo handlerType;
var pageTypeAttributes = pageTypeInfo.GetCustomAttributes(inherit: true);
object[] handlerTypeAttributes;
if (modelProperty.PropertyType.IsDefined(typeof(PageModelAttribute), inherit: true))
{
handlerType = modelTypeInfo;
// If a PageModel is specified, combine the attributes specified on the Page and the Model type.
// Attributes that appear earlier in the are more significant. In this case, we'll treat attributes on the model (code)
// to be more signficant than the page (code-generated).
handlerTypeAttributes = modelTypeInfo.GetCustomAttributes(inherit: true).Concat(pageTypeAttributes).ToArray();
}
else
{
handlerType = pageTypeInfo;
handlerTypeAttributes = pageTypeInfo.GetCustomAttributes(inherit: true);
}
var pageModel = new PageApplicationModel(
actionDescriptor,
declaredModelType,
handlerType,
handlerTypeAttributes)
{
PageType = pageTypeInfo,
ModelType = modelTypeInfo,
};
PopulateHandlerMethods(pageModel);
PopulateHandlerProperties(pageModel);
PopulateFilters(pageModel);
return(pageModel);
}
