Files
Umbraco-CMS/src/Umbraco.Core/Models/ContentBase.cs
2018-04-18 14:43:07 +02:00

350 lines
13 KiB
C#

using System;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Diagnostics;
using System.Linq;
using System.Reflection;
using System.Runtime.Serialization;
using System.Web;
using Umbraco.Core.Models.Entities;
namespace Umbraco.Core.Models
{
/// <summary>
/// Represents an abstract class for base Content properties and methods
/// </summary>
[Serializable]
[DataContract(IsReference = true)]
[DebuggerDisplay("Id: {Id}, Name: {Name}, ContentType: {ContentTypeBase.Alias}")]
public abstract class ContentBase : TreeEntityBase, IContentBase
{
protected static readonly Dictionary<int, string> NoNames = new Dictionary<int, string>();
private static readonly Lazy<PropertySelectors> Ps = new Lazy<PropertySelectors>();
private int _contentTypeId;
protected IContentTypeComposition ContentTypeBase;
private int _writerId;
private PropertyCollection _properties;
private Dictionary<int, string> _names;
/// <summary>
/// Initializes a new instance of the <see cref="ContentBase"/> class.
/// </summary>
protected ContentBase(string name, int parentId, IContentTypeComposition contentType, PropertyCollection properties)
: this(name, contentType, properties)
{
if (parentId == 0) throw new ArgumentOutOfRangeException(nameof(parentId));
ParentId = parentId;
}
/// <summary>
/// Initializes a new instance of the <see cref="ContentBase"/> class.
/// </summary>
protected ContentBase(string name, IContentBase parent, IContentTypeComposition contentType, PropertyCollection properties)
: this(name, contentType, properties)
{
if (parent == null) throw new ArgumentNullException(nameof(parent));
SetParent(parent);
}
private ContentBase(string name, IContentTypeComposition contentType, PropertyCollection properties)
{
ContentTypeBase = contentType ?? throw new ArgumentNullException(nameof(contentType));
// initially, all new instances have
Id = 0; // no identity
VersionId = 0; // no versions
Name = name;
_contentTypeId = contentType.Id;
_properties = properties ?? throw new ArgumentNullException(nameof(properties));
_properties.EnsurePropertyTypes(PropertyTypes);
}
// ReSharper disable once ClassNeverInstantiated.Local
private class PropertySelectors
{
public readonly PropertyInfo DefaultContentTypeIdSelector = ExpressionHelper.GetPropertyInfo<ContentBase, int>(x => x.ContentTypeId);
public readonly PropertyInfo PropertyCollectionSelector = ExpressionHelper.GetPropertyInfo<ContentBase, PropertyCollection>(x => x.Properties);
public readonly PropertyInfo WriterSelector = ExpressionHelper.GetPropertyInfo<ContentBase, int>(x => x.WriterId);
public readonly PropertyInfo NamesSelector = ExpressionHelper.GetPropertyInfo<ContentBase, IReadOnlyDictionary<int, string>>(x => x.Names);
}
protected void PropertiesChanged(object sender, NotifyCollectionChangedEventArgs e)
{
OnPropertyChanged(Ps.Value.PropertyCollectionSelector);
}
/// <summary>
/// Id of the user who wrote/updated this entity
/// </summary>
[DataMember]
public virtual int WriterId
{
get => _writerId;
set => SetPropertyValueAndDetectChanges(value, ref _writerId, Ps.Value.WriterSelector);
}
[IgnoreDataMember]
public int VersionId { get; internal set; }
/// <summary>
/// Integer Id of the default ContentType
/// </summary>
[DataMember]
public virtual int ContentTypeId
{
get
{
//There will be cases where this has not been updated to reflect the true content type ID.
//This will occur when inserting new content.
if (_contentTypeId == 0 && ContentTypeBase != null && ContentTypeBase.HasIdentity)
{
_contentTypeId = ContentTypeBase.Id;
}
return _contentTypeId;
}
protected set => SetPropertyValueAndDetectChanges(value, ref _contentTypeId, Ps.Value.DefaultContentTypeIdSelector);
}
/// <summary>
/// Gets or sets the collection of properties for the entity.
/// </summary>
[DataMember]
public virtual PropertyCollection Properties
{
get => _properties;
set
{
_properties = value;
_properties.CollectionChanged += PropertiesChanged;
}
}
/// <inheritdoc />
[DataMember]
public virtual IReadOnlyDictionary<int, string> Names
{
get => _names ?? NoNames;
set
{
foreach (var (languageId, name) in value)
SetName(languageId, name);
}
}
/// <inheritdoc />
public virtual void SetName(int? languageId, string name)
{
if (languageId == null)
{
Name = name;
return;
}
if ((ContentTypeBase.Variations & (ContentVariation.CultureNeutral | ContentVariation.CultureSegment)) == 0)
throw new NotSupportedException("Content type does not support varying name by culture.");
if (_names == null)
_names = new Dictionary<int, string>();
_names[languageId.Value] = name;
OnPropertyChanged(Ps.Value.NamesSelector);
}
protected virtual void ClearNames()
{
_names = null;
OnPropertyChanged(Ps.Value.NamesSelector);
}
/// <inheritdoc />
public virtual string GetName(int? languageId)
{
if (languageId == null) return Name;
if (_names == null) return null;
return _names.TryGetValue(languageId.Value, out var name) ? name : null;
}
/// <summary>
/// Gets the enumeration of property groups for the entity.
/// fixme is a proxy, kill this
/// </summary>
[IgnoreDataMember]
public IEnumerable<PropertyGroup> PropertyGroups => ContentTypeBase.CompositionPropertyGroups;
/// <summary>
/// Gets the numeration of property types for the entity.
/// fixme is a proxy, kill this
/// </summary>
[IgnoreDataMember]
public IEnumerable<PropertyType> PropertyTypes => ContentTypeBase.CompositionPropertyTypes;
#region Has, Get, Set, Publish Property Value
/// <inheritdoc />
public virtual bool HasProperty(string propertyTypeAlias)
=> Properties.Contains(propertyTypeAlias);
/// <inheritdoc />
public virtual object GetValue(string propertyTypeAlias, int? languageId = null, string segment = null, bool published = false)
{
return Properties.TryGetValue(propertyTypeAlias, out var property)
? property.GetValue(languageId, segment, published)
: null;
}
/// <inheritdoc />
public virtual TValue GetValue<TValue>(string propertyTypeAlias, int? languageId = null, string segment = null, bool published = false)
{
if (!Properties.TryGetValue(propertyTypeAlias, out var property))
return default;
var convertAttempt = property.GetValue(languageId, segment, published).TryConvertTo<TValue>();
return convertAttempt.Success ? convertAttempt.Result : default;
}
/// <inheritdoc />
public virtual void SetValue(string propertyTypeAlias, object value, int? languageId = null, string segment = null)
{
if (Properties.Contains(propertyTypeAlias))
{
Properties[propertyTypeAlias].SetValue(value, languageId, segment);
return;
}
var propertyType = PropertyTypes.FirstOrDefault(x => x.Alias.InvariantEquals(propertyTypeAlias));
if (propertyType == null)
throw new InvalidOperationException($"No PropertyType exists with the supplied alias \"{propertyTypeAlias}\".");
var property = propertyType.CreateProperty();
property.SetValue(value, languageId, segment);
Properties.Add(property);
}
// HttpPostedFileBase is the base class that can be mocked
// HttpPostedFile is what we get in ASP.NET
// HttpPostedFileWrapper wraps sealed HttpPostedFile as HttpPostedFileBase
/// <summary>
/// Sets the posted file value of a property.
/// </summary>
public virtual void SetValue(string propertyTypeAlias, HttpPostedFile value, int? languageId = null, string segment = null)
{
ContentExtensions.SetValue(this, propertyTypeAlias, new HttpPostedFileWrapper(value), languageId, segment);
}
/// <summary>
/// Sets the posted file value of a property.
/// </summary>
public virtual void SetValue(string propertyTypeAlias, HttpPostedFileBase value, int? languageId = null, string segment = null)
{
ContentExtensions.SetValue(this, propertyTypeAlias, value, languageId, segment);
}
#endregion
#region Validation
public virtual Property[] ValidateAll()
{
return Properties.Where(x => !x.IsAllValid()).ToArray();
}
public virtual Property[] Validate(int? languageId = null, string segment = null)
{
return Properties.Where(x => !x.IsValid(languageId, segment)).ToArray();
}
public virtual Property[] ValidateCulture(int? languageId = null)
{
return Properties.Where(x => !x.IsCultureValid(languageId)).ToArray();
}
#endregion
#region Dirty
/// <inheritdoc />
/// <remarks>Overriden to include user properties.</remarks>
public override void ResetDirtyProperties(bool rememberDirty)
{
base.ResetDirtyProperties(rememberDirty);
// also reset dirty changes made to user's properties
foreach (var prop in Properties)
prop.ResetDirtyProperties(rememberDirty);
}
/// <inheritdoc />
/// <remarks>Overriden to include user properties.</remarks>
public override bool IsDirty()
{
return IsEntityDirty() || this.IsAnyUserPropertyDirty();
}
/// <inheritdoc />
/// <remarks>Overriden to include user properties.</remarks>
public override bool WasDirty()
{
return WasEntityDirty() || this.WasAnyUserPropertyDirty();
}
/// <summary>
/// Gets a value indicating whether the current entity's own properties (not user) are dirty.
/// </summary>
public bool IsEntityDirty()
{
return base.IsDirty();
}
/// <summary>
/// Gets a value indicating whether the current entity's own properties (not user) were dirty.
/// </summary>
public bool WasEntityDirty()
{
return base.WasDirty();
}
/// <inheritdoc />
/// <remarks>Overriden to include user properties.</remarks>
public override bool IsPropertyDirty(string propertyName)
{
if (base.IsPropertyDirty(propertyName))
return true;
return Properties.Contains(propertyName) && Properties[propertyName].IsDirty();
}
/// <inheritdoc />
/// <remarks>Overriden to include user properties.</remarks>
public override bool WasPropertyDirty(string propertyName)
{
if (base.WasPropertyDirty(propertyName))
return true;
return Properties.Contains(propertyName) && Properties[propertyName].WasDirty();
}
/// <inheritdoc />
/// <remarks>Overriden to include user properties.</remarks>
public override IEnumerable<string> GetDirtyProperties()
{
var instanceProperties = base.GetDirtyProperties();
var propertyTypes = Properties.Where(x => x.IsDirty()).Select(x => x.Alias);
return instanceProperties.Concat(propertyTypes);
}
/// <inheritdoc />
/// <remarks>Overriden to include user properties.</remarks>
public override IEnumerable<string> GetWereDirtyProperties()
{
var instanceProperties = base.GetWereDirtyProperties();
var propertyTypes = Properties.Where(x => x.WasDirty()).Select(x => x.Alias);
return instanceProperties.Concat(propertyTypes);
}
#endregion
}
}