예제 #1
0
        /// <summary>
        /// 更新
        /// 注意:rowObj为T类型将更新该实体的非主键所有列,如果rowObj类型为匿名类将更新指定列
        /// 使用说明:sqlSugar.Update《T》(rowObj,whereObj);
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="rowObj">new T(){name="张三",sex="男"}或者new {name="张三",sex="男"}</param>
        /// <param name="whereIn">new int[]{1,2,3}</param>
        /// <returns></returns>
        public bool Update <T, FiledType>(object rowObj, params FiledType[] whereIn) where T : class
        {
            if (rowObj == null)
            {
                throw new ArgumentNullException("SqlSugarClient.Update.rowObj");
            }

            Type   type     = typeof(T);
            string typeName = type.Name;

            typeName = GetTableNameByClassType(typeName);
            StringBuilder sbSql = new StringBuilder(string.Format(" UPDATE {0} SET ", typeName));
            Dictionary <string, object> rows = SqlSugarTool.GetObjectToDictionary(rowObj);
            string pkName        = SqlSugarTool.GetPrimaryKeyByTableName(this, typeName);
            var    identityNames = SqlSugarTool.GetIdentitiesKeyByTableName(this, typeName);

            foreach (var r in rows)
            {
                var isPk                   = pkName != null && pkName.ToLower() == r.Key.ToLower();
                var isIdentity             = identityNames.Any(it => it.Value.ToLower() == r.Key.ToLower());
                var isDisableUpdateColumns = DisableUpdateColumns != null && DisableUpdateColumns.Any(it => it.ToLower() == r.Key.ToLower());
                if (isPk || isIdentity || isDisableUpdateColumns)
                {
                    if (rowObj.GetType() == type)
                    {
                        continue;
                    }
                }
                sbSql.Append(string.Format(" [{0}] =@{0}  ,", r.Key));
            }
            sbSql.Remove(sbSql.Length - 1, 1);
            if (whereIn.Count() == 0)
            {
                var value = type.GetProperties().Cast <PropertyInfo>().Single(it => it.Name == pkName).GetValue(rowObj, null);
                sbSql.AppendFormat("WHERE {1} IN ('{2}')", typeName, pkName, value);
            }
            else
            {
                sbSql.AppendFormat("WHERE {1} IN ({2})", typeName, pkName, whereIn.ToJoinSqlInVal());
            }
            List <SQLiteParameter> parsList = new List <SQLiteParameter>();
            var pars = rows.Select(c => new SQLiteParameter("@" + c.Key, c.Value));

            if (pars != null)
            {
                foreach (var par in pars)
                {
                    var isDisableUpdateColumns = DisableUpdateColumns != null && DisableUpdateColumns.Any(it => it.ToLower() == par.ParameterName.TrimStart('@').ToLower());
                    if (!isDisableUpdateColumns)
                    {
                        parsList.Add(par);
                    }
                }
            }
            try
            {
                var updateRowCount = ExecuteCommand(sbSql.ToString(), parsList.ToArray());
                return(updateRowCount > 0);
            }
            catch (Exception ex)
            {
                var cacheManager = CacheManager <string> .GetInstance();

                cacheManager.RemoveAll(it => it.Contains("KeyBy"));
                throw new Exception("sql:" + sbSql.ToString() + "\n" + ex.Message);
            }
        }