Files
Umbraco-CMS/src/Umbraco.Web/Models/PublishedProperty.cs
2014-04-19 18:39:11 +02:00

75 lines
3.7 KiB
C#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Umbraco.Core;
using Umbraco.Core.Models;
using Umbraco.Core.Models.PublishedContent;
using Umbraco.Core.PropertyEditors;
using Umbraco.Core.Services;
namespace Umbraco.Web.Models
{
public static class PublishedProperty
{
/// <summary>
/// Creates a detached published property.
/// </summary>
/// <param name="propertyType">A published property type.</param>
/// <param name="value">The property data raw value.</param>
/// <param name="isPreviewing">A value indicating whether to evaluate the property value in previewing context.</param>
/// <returns>A detached published property holding the value.</returns>
internal static IPublishedProperty GetDetached(PublishedPropertyType propertyType, object value, bool isPreviewing = false)
{
if (propertyType.IsDetachedOrNested == false)
throw new ArgumentException("Property type is neither detached nor nested.", "propertyType");
var property = UmbracoContext.Current.ContentCache.InnerCache.CreateDetachedProperty(propertyType, value, isPreviewing);
return property;
}
/// <summary>
/// Maps a collection of Property to a collection of IPublishedProperty for a specified collection of PublishedPropertyType.
/// </summary>
/// <param name="propertyTypes">The published property types.</param>
/// <param name="properties">The properties.</param>
/// <param name="map">A mapping function.</param>
/// <returns>A collection of IPublishedProperty corresponding to the collection of PublishedPropertyType
/// and taking values from the collection of Property.</returns>
/// <remarks>Ensures that all conversions took place correctly.</remarks>
internal static IEnumerable<IPublishedProperty> MapProperties(
IEnumerable<PublishedPropertyType> propertyTypes, IEnumerable<Property> properties,
Func<PublishedPropertyType, object, IPublishedProperty> map)
{
var propertyEditorResolver = PropertyEditorResolver.Current;
var dataTypeService = ApplicationContext.Current.Services.DataTypeService;
return propertyTypes.Select(x =>
{
var p = properties.SingleOrDefault(xx => xx.Alias == x.PropertyTypeAlias);
var v = p == null || p.Value == null ? null : p.Value;
if (v != null)
{
var e = propertyEditorResolver.GetByAlias(x.PropertyEditorAlias);
// We are converting to string, even for database values which are integer or
// DateTime, which is not optimum. Doing differently would require that we have a way to tell
// whether the conversion to XML string changes something or not... which we don't, and we
// don't want to implement it as PropertyValueEditor.ConvertDbToXml/String should die anyway.
// Don't think about improving the situation here: this is a corner case and the real
// thing to do is to get rig of PropertyValueEditor.ConvertDbToXml/String.
// Use ConvertDbToString to keep it simple, although everywhere we use ConvertDbToXml and
// nothing ensures that the two methods are consistent.
if (e != null)
v = e.ValueEditor.ConvertDbToString(p, p.PropertyType, dataTypeService);
}
return map(x, v);
});
}
}
}