127 lines
4.2 KiB
C#
127 lines
4.2 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 translation for a <see cref="DictionaryItem"/>
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/// </summary>
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[Serializable]
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[DataContract(IsReference = true)]
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public class DictionaryTranslation : EntityBase, IDictionaryTranslation
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{
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internal Func<int, ILanguage> GetLanguage { get; set; }
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private ILanguage _language;
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private string _value;
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//note: this will be memberwise cloned
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private int _languageId;
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public DictionaryTranslation(ILanguage language, string value)
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{
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if (language == null) throw new ArgumentNullException("language");
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_language = language;
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_languageId = _language.Id;
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_value = value;
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}
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public DictionaryTranslation(ILanguage language, string value, Guid uniqueId)
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{
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if (language == null) throw new ArgumentNullException("language");
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_language = language;
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_languageId = _language.Id;
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_value = value;
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Key = uniqueId;
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}
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internal DictionaryTranslation(int languageId, string value)
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{
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_languageId = languageId;
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_value = value;
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}
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internal DictionaryTranslation(int languageId, string value, Guid uniqueId)
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{
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_languageId = languageId;
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_value = value;
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Key = uniqueId;
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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 LanguageSelector = ExpressionHelper.GetPropertyInfo<DictionaryTranslation, ILanguage>(x => x.Language);
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public readonly PropertyInfo ValueSelector = ExpressionHelper.GetPropertyInfo<DictionaryTranslation, string>(x => x.Value);
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}
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/// <summary>
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/// Gets or sets the <see cref="Language"/> for the translation
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/// </summary>
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/// <remarks>
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/// Marked as DoNotClone - TODO: this member shouldn't really exist here in the first place, the DictionaryItem
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/// class will have a deep hierarchy of objects which all get deep cloned which we don't want. This should have simply
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/// just referenced a language ID not the actual language object. In v8 we need to fix this.
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/// We're going to have to do the same hacky stuff we had to do with the Template/File contents so that this is returned
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/// on a callback.
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/// </remarks>
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[DataMember]
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[DoNotClone]
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public ILanguage Language
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{
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get
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{
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if (_language != null)
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return _language;
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// else, must lazy-load
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if (GetLanguage != null && _languageId > 0)
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_language = GetLanguage(_languageId);
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return _language;
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}
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set
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{
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SetPropertyValueAndDetectChanges(value, ref _language, Ps.Value.LanguageSelector);
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_languageId = _language == null ? -1 : _language.Id;
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}
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}
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public int LanguageId
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{
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get { return _languageId; }
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}
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/// <summary>
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/// Gets or sets the translated text
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/// </summary>
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[DataMember]
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public string Value
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{
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get { return _value; }
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set { SetPropertyValueAndDetectChanges(value, ref _value, Ps.Value.ValueSelector); }
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}
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public override object DeepClone()
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{
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var clone = (DictionaryTranslation)base.DeepClone();
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// clear fields that were memberwise-cloned and that we don't want to clone
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clone._language = null;
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// turn off change tracking
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clone.DisableChangeTracking();
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// this shouldn't really be needed since we're not tracking
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clone.ResetDirtyProperties(false);
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// re-enable tracking
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clone.EnableChangeTracking();
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return clone;
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}
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}
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}
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