90 lines
3.0 KiB
C#
90 lines
3.0 KiB
C#
using System;
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using System.Reflection;
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using System.Runtime.Serialization;
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using Umbraco.Core.Models.Entities;
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using Umbraco.Core.Persistence.Mappers;
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namespace Umbraco.Core.Models
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{
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/// <summary>
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/// Represents a Relation between two items
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/// </summary>
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[Serializable]
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[DataContract(IsReference = true)]
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public class Relation : EntityBase, IRelation
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{
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//NOTE: The datetime column from umbracoRelation is set on CreateDate on the Entity
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private int _parentId;
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private int _childId;
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private IRelationType _relationType;
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private string _comment;
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public Relation(int parentId, int childId, IRelationType relationType)
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{
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_parentId = parentId;
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_childId = childId;
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_relationType = relationType;
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}
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private static readonly Lazy<PropertySelectors> Ps = new Lazy<PropertySelectors>();
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private class PropertySelectors
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{
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public readonly PropertyInfo ParentIdSelector = ExpressionHelper.GetPropertyInfo<Relation, int>(x => x.ParentId);
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public readonly PropertyInfo ChildIdSelector = ExpressionHelper.GetPropertyInfo<Relation, int>(x => x.ChildId);
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public readonly PropertyInfo RelationTypeSelector = ExpressionHelper.GetPropertyInfo<Relation, IRelationType>(x => x.RelationType);
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public readonly PropertyInfo CommentSelector = ExpressionHelper.GetPropertyInfo<Relation, string>(x => x.Comment);
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}
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/// <summary>
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/// Gets or sets the Parent Id of the Relation (Source)
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/// </summary>
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[DataMember]
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public int ParentId
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{
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get { return _parentId; }
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set { SetPropertyValueAndDetectChanges(value, ref _parentId, Ps.Value.ParentIdSelector); }
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}
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/// <summary>
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/// Gets or sets the Child Id of the Relation (Destination)
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/// </summary>
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[DataMember]
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public int ChildId
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{
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get { return _childId; }
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set { SetPropertyValueAndDetectChanges(value, ref _childId, Ps.Value.ChildIdSelector); }
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}
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/// <summary>
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/// Gets or sets the <see cref="RelationType"/> for the Relation
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/// </summary>
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[DataMember]
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public IRelationType RelationType
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{
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get { return _relationType; }
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set { SetPropertyValueAndDetectChanges(value, ref _relationType, Ps.Value.RelationTypeSelector); }
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}
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/// <summary>
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/// Gets or sets a comment for the Relation
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/// </summary>
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[DataMember]
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public string Comment
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{
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get { return _comment; }
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set { SetPropertyValueAndDetectChanges(value, ref _comment, Ps.Value.CommentSelector); }
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}
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/// <summary>
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/// Gets the Id of the <see cref="RelationType"/> that this Relation is based on.
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/// </summary>
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[IgnoreDataMember]
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public int RelationTypeId
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{
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get { return _relationType.Id; }
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}
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}
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}
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