Moved more abstractions of models

src/Umbraco.Core/Models/Relation.cs

@@ -1,74 +0,0 @@
-using System;
-using System.Runtime.Serialization;
-using Umbraco.Core.Models.Entities;
-
-namespace Umbraco.Core.Models
-{
-    /// <summary>
-    /// Represents a Relation between two items
-    /// </summary>
-    [Serializable]
-    [DataContract(IsReference = true)]
-    public class Relation : EntityBase, IRelation
-    {
-        //NOTE: The datetime column from umbracoRelation is set on CreateDate on the Entity
-        private int _parentId;
-        private int _childId;
-        private IRelationType _relationType;
-        private string _comment;
-
-        public Relation(int parentId, int childId, IRelationType relationType)
-        {
-            _parentId = parentId;
-            _childId = childId;
-            _relationType = relationType;
-        }
-        
-
-        /// <summary>
-        /// Gets or sets the Parent Id of the Relation (Source)
-        /// </summary>
-        [DataMember]
-        public int ParentId
-        {
-            get => _parentId;
-            set => SetPropertyValueAndDetectChanges(value, ref _parentId, nameof(ParentId));
-        }
-
-        /// <summary>
-        /// Gets or sets the Child Id of the Relation (Destination)
-        /// </summary>
-        [DataMember]
-        public int ChildId
-        {
-            get => _childId;
-            set => SetPropertyValueAndDetectChanges(value, ref _childId, nameof(ChildId));
-        }
-
-        /// <summary>
-        /// Gets or sets the <see cref="RelationType"/> for the Relation
-        /// </summary>
-        [DataMember]
-        public IRelationType RelationType
-        {
-            get => _relationType;
-            set => SetPropertyValueAndDetectChanges(value, ref _relationType, nameof(RelationType));
-        }
-
-        /// <summary>
-        /// Gets or sets a comment for the Relation
-        /// </summary>
-        [DataMember]
-        public string Comment
-        {
-            get => _comment;
-            set => SetPropertyValueAndDetectChanges(value, ref _comment, nameof(Comment));
-        }
-
-        /// <summary>
-        /// Gets the Id of the <see cref="RelationType"/> that this Relation is based on.
-        /// </summary>
-        [IgnoreDataMember]
-        public int RelationTypeId => _relationType.Id;
-    }
-}