// Admin.NET 项目的版æƒã€å•†æ ‡ã€ä¸“利和其他相关æƒåˆ©å‡å—ç›¸åº”æ³•å¾‹æ³•è§„çš„ä¿æŠ¤ã€‚ä½¿ç”¨æœ¬é¡¹ç›®åº”éµå®ˆç›¸å…³æ³•律法规和许å¯è¯çš„è¦æ±‚。 // // 本项目主è¦éµå¾ª MIT 许å¯è¯å’Œ Apache 许å¯è¯ï¼ˆç‰ˆæœ¬ 2.0)进行分å‘和使用。许å¯è¯ä½äºŽæºä»£ç æ ‘æ ¹ç›®å½•ä¸çš„ LICENSE-MIT å’Œ LICENSE-APACHE 文件。 // // ä¸å¾—利用本项目从事å±å®³å›½å®¶å®‰å…¨ã€æ‰°ä¹±ç¤¾ä¼šç§©åºã€ä¾µçŠ¯ä»–äººåˆæ³•æƒç›Šç‰æ³•å¾‹æ³•è§„ç¦æ¢çš„æ´»åЍï¼ä»»ä½•基于本项目二次开å‘è€Œäº§ç”Ÿçš„ä¸€åˆ‡æ³•å¾‹çº çº·å’Œè´£ä»»ï¼Œæˆ‘ä»¬ä¸æ‰¿æ‹…ä»»ä½•è´£ä»»ï¼ namespace Admin.NET.Core; public static class SqlSugarFilterExtension { /// <summary> /// æ ¹æ®æŒ‡å®šAttribute获å–属性 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="type"></param> /// <returns></returns> private static List<string> GetPropertyNames<T>(this Type type) where T : Attribute { var allProperties = type.GetProperties(); var properties = allProperties.Where(x => x.CustomAttributes.Any(a => a.AttributeType == typeof(T))); return properties.Select(x => x.Name).ToList(); } /// <summary> /// 获å–è¿‡æ»¤è¡¨è¾¾å¼ /// </summary> /// <typeparam name="T"></typeparam> /// <param name="type"></param> /// <param name="owners"></param> /// <returns></returns> public static LambdaExpression GetConditionExpression<T>(this Type type, List<long> owners) where T : Attribute { var fieldNames = type.GetPropertyNames<T>(); ParameterExpression parameter = Expression.Parameter(type, "c"); Expression right = Expression.Constant(false); fieldNames.ForEach(fieldName => { owners.ForEach(owner => { var property = type.GetProperty(fieldName); Expression temp = Expression.Property(parameter, property); // 如果属性是å¯ä¸ºç©ºçš„类型,则转æ¢ä¸ºå…¶åŸºç¡€ç±»åž‹ var propertyType = property.PropertyType; if (Nullable.GetUnderlyingType(propertyType) != null) { temp = Expression.Convert(temp, Nullable.GetUnderlyingType(propertyType)); } Expression left = Expression.Equal(temp, Expression.Constant(owner)); right = Expression.OrElse(left, right); }); }); var finalExpression = Expression.Lambda(right, new ParameterExpression[] { parameter }); return finalExpression; } }