Update Core

Src/Asp.NetCore2/SqlSugar/Abstract/CodeFirstProvider/CodeFirstProvider.cs

@@ -118,9 +118,61 @@ namespace SqlSugar
                 }
             }
         }
+        public TableDifferenceProvider GetDifferenceTables<T>()
+        {
+            var type = typeof(T);
+            return GetDifferenceTables(type);
+        }
+
+        public TableDifferenceProvider GetDifferenceTables(params Type[] types)
+        {
+            TableDifferenceProvider result = new TableDifferenceProvider();
+            foreach (var type in types)
+            {
+                GetDifferenceTables(result, type);
+            }
+            return result;
+        }
         #endregion
 
         #region Core Logic
+        private void GetDifferenceTables(TableDifferenceProvider result, Type type)
+        {
+            var tempTableName = "TempDiff" + DateTime.Now.ToString("yyMMssHHmmssfff");
+            var oldTableName = this.Context.EntityMaintenance.GetEntityInfo(type).DbTableName;
+            var db = new SqlSugarProvider(UtilMethods.CopyConfig(this.Context.CurrentConnectionConfig));
+            UtilMethods.IsNullReturnNew(db.CurrentConnectionConfig.ConfigureExternalServices);
+            db.CurrentConnectionConfig.ConfigureExternalServices.EntityNameService += (x, p) =>
+            {
+                p.IsDisabledUpdateAll = true;//Disabled update
+            };
+            db.MappingTables = new MappingTableList();
+            db.MappingTables.Add(type.Name, tempTableName);
+            try
+            {
+                db.CodeFirst.InitTables(type);
+                var tables = db.DbMaintenance.GetTableInfoList(false);
+                var oldTableInfo = tables.FirstOrDefault(it=>it.Name.EqualCase(oldTableName));
+                var newTableInfo = tables.FirstOrDefault(it => it.Name.EqualCase(oldTableName));
+                var oldTable = db.DbMaintenance.GetColumnInfosByTableName(oldTableName, false);
+                var tempTable = db.DbMaintenance.GetColumnInfosByTableName(tempTableName, false);
+                result.tableInfos.Add(new DiffTableInfo()
+                {
+                     OldTableInfo= oldTableInfo,
+                     NewTableInfo = newTableInfo,
+                     OldColumnInfos =  oldTable,
+                     NewColumnInfos = tempTable
+                });
+            }
+            catch (Exception ex)
+            {
+                throw ex;
+            }
+            finally
+            {
+                db.DbMaintenance.DropTable(tempTableName);
+            }
+        }
         protected virtual void Execute(Type entityType)
         {
             var entityInfo = this.Context.EntityMaintenance.GetEntityInfoNoCache(entityType);

Src/Asp.NetCore2/SqlSugar/Abstract/CodeFirstProvider/TableDifferenceProvider.cs

@@ -0,0 +1,174 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Linq;
+namespace SqlSugar
+{
+    public class TableDifferenceProvider
+    {
+        internal List<DiffTableInfo> tableInfos = new List<DiffTableInfo>();
+        public string ToDiffString()
+        {
+            StringBuilder sb = new StringBuilder();
+            sb.AppendLine();
+            var diffTables = this.ToDiffList();
+            if (diffTables.IsNullOrEmpty())
+            {
+                sb.AppendLine("No change");
+            }
+            else
+            {
+                foreach (var item in diffTables)
+                {
+                    sb.AppendLine($"----Table:{ item.TableName }----");
+                    if (item.AddColums.HasValue())
+                    {
+                        sb.AppendLine($"Add column: ");
+                        foreach (var addItem in item.AddColums)
+                        {
+                            sb.AppendLine($"{addItem.Message} ");
+                        }
+                    }
+                    if (item.UpdateColums.HasValue())
+                    {
+                        sb.AppendLine($"Update column: ");
+                        foreach (var addItem in item.UpdateColums)
+                        {
+                            sb.AppendLine($"{addItem.Message} ");
+                        }
+                    }
+                    if (item.DeleteColums.HasValue())
+                    {
+                        sb.AppendLine($"Delete column: ");
+                        foreach (var addItem in item.DeleteColums) 
+                        {
+                            sb.AppendLine($"{addItem.Message} ");
+                        }
+                    }
+                }
+            }
+            sb.AppendLine();
+            sb.AppendLine();
+            return sb.ToString();
+        }
+
+        public List<TableDifferenceInfo> ToDiffList()
+        {
+            List<TableDifferenceInfo> result = new List<TableDifferenceInfo>();
+            foreach (var tableInfo in tableInfos)
+            {
+                TableDifferenceInfo addItem = new TableDifferenceInfo();
+                addItem.TableName = tableInfo.OldTableInfo.Name;
+                addItem.AddColums = GetAddColumn(tableInfo);
+                addItem.UpdateColums = GetUpdateColumn(tableInfo);
+                addItem.DeleteColums = GetDeleteColumn(tableInfo);
+                if (addItem.IsDiff)
+                    result.Add(addItem);
+            }
+            return result;
+        }
+
+        private static List<DiffColumsInfo> GetDeleteColumn(DiffTableInfo tableInfo)
+        {
+            List<DiffColumsInfo> result = new List<DiffColumsInfo>();
+            var columns = tableInfo.OldColumnInfos.Where(z => !tableInfo.NewColumnInfos.Any(y => y.DbColumnName.EqualCase(z.DbColumnName))).ToList();
+            return columns.Select(it => new DiffColumsInfo() {   Message= GetColumnString(it) }).ToList();
+        }
+
+        private List<DiffColumsInfo> GetUpdateColumn(DiffTableInfo tableInfo)
+        {
+            List<DiffColumsInfo> result = new List<DiffColumsInfo>();
+            result = tableInfo.NewColumnInfos
+                 .Where(z => tableInfo.OldColumnInfos.Any(y => y.DbColumnName.EqualCase(z.DbColumnName) && (
+                     z.Length != y.Length ||
+                     z.ColumnDescription != y.ColumnDescription ||
+                     z.DataType != y.DataType ||
+                     z.DecimalDigits != y.DecimalDigits
+                  ))).Select(it => new DiffColumsInfo()
+                  {
+                     Message= GetUpdateColumnString(it, tableInfo.OldColumnInfos.FirstOrDefault(y => y.DbColumnName.EqualCase(it.DbColumnName)))
+                  }).ToList();
+            return result;
+        }
+
+        private static List<DiffColumsInfo> GetAddColumn(DiffTableInfo tableInfo)
+        {
+            List<DiffColumsInfo> result = new List<DiffColumsInfo>();
+            var columns = tableInfo.NewColumnInfos.Where(z => !tableInfo.OldColumnInfos.Any(y => y.DbColumnName.EqualCase(z.DbColumnName))).ToList();
+            return columns.Select(it => new DiffColumsInfo() {  Message = GetColumnString(it) }).ToList();
+        }
+
+        private static string GetColumnString(DbColumnInfo it)
+        {
+            return $"{it.DbColumnName}  {it.DataType}  {it.Length} {it.Scale}   default:{it.DefaultValue} description:{it.ColumnDescription} pk:{it.IsPrimarykey} nullable:{it.IsNullable} identity:{it.IsIdentity} ";
+        }
+
+        private static string GetUpdateColumnString(DbColumnInfo it,DbColumnInfo old)
+        {
+            var result= $"{it.DbColumnName}  changes: ";
+            if (it.DataType != old.DataType) 
+            {
+                result += $"  [DataType:{old.DataType}->{it.DataType}] ";
+            }
+            if (it.Length != old.Length)
+            {
+                result += $"  [Length:{old.Length}->{it.Length}] ";
+            }
+            if (it.Scale != old.Scale)
+            {
+                result += $"  [Scale:{old.Scale}->{it.Scale}] ";
+            }
+            if (it.ColumnDescription != old.ColumnDescription)
+            {
+                result += $"  [Description:{old.ColumnDescription}->{it.ColumnDescription}] ";
+            }
+            if (it.IsPrimarykey != old.IsPrimarykey)
+            {
+                result += $"  [Pk:{old.IsPrimarykey}->{it.IsPrimarykey}] ";
+            }
+            if (it.IsNullable != old.IsNullable)
+            {
+                result += $"  [Nullable:{old.IsNullable}->{it.IsNullable}] ";
+            }
+            if (it.IsIdentity != old.IsIdentity)
+            {
+                result += $"  [Identity:{old.IsIdentity}->{it.IsIdentity}] ";
+            }
+            return result;
+        }
+    }
+    public class TableDifferenceInfo
+    {
+        public List<DiffColumsInfo> DeleteColums { get; set; } = new List<DiffColumsInfo>();
+        public List<DiffColumsInfo> UpdateColums { get; set; } = new List<DiffColumsInfo>();
+        public List<DiffColumsInfo> AddColums { get; set; } = new List<DiffColumsInfo>();
+        public List<DiffColumsInfo> UpdateRemark { get; set; } = new List<DiffColumsInfo>();
+        public bool IsDiff
+        {
+            get
+            {
+                return
+                    (DeleteColums.Count>0 ||
+                     UpdateColums.Count > 0 ||
+                     AddColums.Count > 0 ||
+                     UpdateRemark.Count > 0) ;
+            }
+        }
+
+        public string TableName { get;  set; }
+    }
+
+    public class DiffColumsInfo
+    {
+        public string SqlTemplate { get; set; }
+        public string Message { get; set; }
+    }
+
+    public class DiffTableInfo
+    {
+        public DbTableInfo OldTableInfo { get; set; }
+        public DbTableInfo NewTableInfo { get; set; }
+        public List<DbColumnInfo> OldColumnInfos { get; set; }
+        public List<DbColumnInfo> NewColumnInfos { get; set; }
+    }
+}

Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/MappingFieldsHelper.cs

@@ -72,6 +72,22 @@ namespace SqlSugar
             }
         }
 
+        public void SetChildItem(EntityColumnInfo navColumnInfo, object item, List<object> list, List<MappingFieldsExpression> mappingFieldsExpressions)
+        {
+            if (item != null)
+            {
+                //var expable =Expressionable.Create<object>();
+                List<object> setList = GetSetList(item, list, mappingFieldsExpressions);
+                //navColumnInfo.PropertyInfo.SetValue();
+                var instance = Activator.CreateInstance(navColumnInfo.PropertyInfo.PropertyType, true);
+                var ilist = instance as IList;
+                foreach (var value in setList)
+                {
+                    navColumnInfo.PropertyInfo.SetValue(item, value);
+                }
+          
+            }
+        }
         public List<object> GetSetList(object item, List<object> list, List<MappingFieldsExpression> mappingFieldsExpressions)
         {
             foreach (var field in mappingFieldsExpressions)

Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/NavigatManager.cs

@@ -342,7 +342,13 @@ namespace SqlSugar
 
         private void Dynamic(List<object> list, Func<ISugarQueryable<object>, List<object>> selector, EntityInfo listItemEntity, System.Reflection.PropertyInfo navObjectNamePropety, EntityColumnInfo navObjectNameColumnInfo)
         {
-            var navEntity = navObjectNameColumnInfo.PropertyInfo.PropertyType.GetGenericArguments()[0];
+            var args = navObjectNameColumnInfo.PropertyInfo.PropertyType.GetGenericArguments();
+            if (args.Length == 0) 
+            {
+                DynamicOneToOne(list,selector,listItemEntity, navObjectNamePropety, navObjectNameColumnInfo);
+                return;
+            }
+            var navEntity = args[0];
             var navEntityInfo = this.Context.EntityMaintenance.GetEntityInfo(navEntity);
             var sqlObj = GetWhereSql(navObjectNameColumnInfo.Navigat.Name);
             Check.ExceptionEasy(sqlObj.MappingExpressions.IsNullOrEmpty(), $"Dynamic need MappingField ,Demo: Includes(it => it.Books.MappingField(z=>z.studenId,()=>it.StudentId).ToList())", $"自定义映射需要 MappingFields ,例子: Includes(it => it.Books.MappingFields(z=>z.studenId,()=>it.StudentId).ToList())");
@@ -364,6 +370,31 @@ namespace SqlSugar
             }
 
         }
+
+        private void DynamicOneToOne(List<object> list, Func<ISugarQueryable<object>, List<object>> selector, EntityInfo listItemEntity, System.Reflection.PropertyInfo navObjectNamePropety, EntityColumnInfo navObjectNameColumnInfo)
+        {
+            var navEntity = navObjectNameColumnInfo.PropertyInfo.PropertyType;
+            var navEntityInfo = this.Context.EntityMaintenance.GetEntityInfo(navEntity);
+            var sqlObj = GetWhereSql(navObjectNameColumnInfo.Navigat.Name);
+            Check.ExceptionEasy(sqlObj.MappingExpressions.IsNullOrEmpty(), $"Dynamic need MappingField ,Demo: Includes(it => it.Books.MappingField(z=>z.studenId,()=>it.StudentId).ToList())", $"自定义映射需要 MappingFields ,例子: Includes(it => it.Books.MappingFields(z=>z.studenId,()=>it.StudentId).ToList())");
+            if (list.Any() && navObjectNamePropety.GetValue(list.First()) == null)
+            {
+                MappingFieldsHelper<T> helper = new MappingFieldsHelper<T>();
+                helper.Context = this.Context;
+                helper.NavEntity = navEntityInfo;
+                helper.RootEntity = this.Context.EntityMaintenance.GetEntityInfo<T>();
+                var whereSql = helper.GetMppingSql(list, sqlObj.MappingExpressions);
+                var navList = selector(this.Context.Queryable<object>().AS(navEntityInfo.DbTableName).AddParameters(sqlObj.Parameters).Where(whereSql, true).WhereIF(sqlObj.WhereString.HasValue(), sqlObj.WhereString).Select(sqlObj.SelectString).OrderByIF(sqlObj.OrderByString.HasValue(), sqlObj.OrderByString));
+                if (navList.HasValue())
+                {
+                    foreach (var item in list)
+                    {
+                        helper.SetChildItem(navObjectNameColumnInfo, item, navList, sqlObj.MappingExpressions);
+                    }
+                }
+            }
+        }
+
         private SqlInfo GetWhereSql(string properyName=null)
         {
             if (_ListCallFunc == null|| _ListCallFunc.Count==0) return new SqlInfo();

Src/Asp.NetCore2/SqlSugar/Abstract/SugarProvider/SqlSugarCoreProvider.cs

@@ -66,40 +66,8 @@ namespace SqlSugar
         }
         private List<ConnectionConfig> GetCopyConfigs()
         {
-            return _configs.Select(it => new ConnectionConfig()
-            {
-                AopEvents = it.AopEvents,
-                ConfigId = it.ConfigId,
-                ConfigureExternalServices = it.ConfigureExternalServices,
-                ConnectionString = it.ConnectionString,
-                DbType = it.DbType,
-                IndexSuffix = it.IndexSuffix,
-                InitKeyType = it.InitKeyType,
-                IsAutoCloseConnection = it.IsAutoCloseConnection,
-                LanguageType = it.LanguageType,
-                MoreSettings = it.MoreSettings == null ? null : new ConnMoreSettings()
-                {
-                    DefaultCacheDurationInSeconds = it.MoreSettings.DefaultCacheDurationInSeconds,
-                    DisableNvarchar = it.MoreSettings.DisableNvarchar,
-                    PgSqlIsAutoToLower = it.MoreSettings.PgSqlIsAutoToLower,
-                    IsAutoRemoveDataCache = it.MoreSettings.IsAutoRemoveDataCache,
-                    IsWithNoLockQuery = it.MoreSettings.IsWithNoLockQuery,
-                    TableEnumIsString=it.MoreSettings.TableEnumIsString,
-                    DisableMillisecond=it.MoreSettings.DisableMillisecond
-                },
-                SqlMiddle=it.SqlMiddle==null?null:new SqlMiddle { 
-                  IsSqlMiddle=it.SqlMiddle.IsSqlMiddle,
-                  ExecuteCommand=it.SqlMiddle.ExecuteCommand,
-                  ExecuteCommandAsync=it.SqlMiddle.ExecuteCommandAsync,
-                  GetDataReader=it.SqlMiddle.GetDataReader,
-                  GetDataReaderAsync=it.SqlMiddle.GetDataReaderAsync,
-                  GetDataSetAll=it.SqlMiddle.GetDataSetAll,
-                  GetDataSetAllAsync=it.SqlMiddle.GetDataSetAllAsync,
-                  GetScalar=it.SqlMiddle.GetScalar,
-                  GetScalarAsync=it.SqlMiddle.GetScalarAsync
-                },
-                SlaveConnectionConfigs = it.SlaveConnectionConfigs
-            }).ToList();
+            return _configs.Select(it =>UtilMethods.CopyConfig(it)).ToList();
         }
+
     }
 }

Src/Asp.NetCore2/SqlSugar/ExpressionsToSql/Subquery/SubqueryableN.cs

@@ -240,6 +240,14 @@ namespace SqlSugar
         {
             return default(string);
         }
+        public Subqueryable<T1, T2, T3,T4> OrderBy(Func<T1, T2, T3,T4, object> expression)
+        {
+            return this;
+        }
+        public Subqueryable<T1, T2, T3,T4> GroupBy(Func<T1, T2, T3,T4, object> expression)
+        {
+            return this;
+        }
     }
     public class Subqueryable<T1, T2, T3> : Subqueryable<T1> where T1 : class, new()
     {
@@ -267,6 +275,14 @@ namespace SqlSugar
         {
             return this;
         }
+        public Subqueryable<T1, T2,T3> OrderBy(Func<T1, T2,T3, object> expression)
+        {
+            return this;
+        }
+        public Subqueryable<T1, T2,T3> GroupBy(Func<T1, T2,T3, object> expression)
+        {
+            return this;
+        }
         public TResult Select<TResult>(Func<T1, T2,T3, TResult> expression) where TResult : struct
         {
             return default(TResult);
@@ -294,6 +310,14 @@ namespace SqlSugar
         {
             return this;
         }
+        public Subqueryable<T1,T2> OrderBy(Func<T1,T2, object> expression)
+        {
+            return this;
+        }
+        public Subqueryable<T1,T2> GroupBy(Func<T1,T2, object> expression)
+        {
+            return this;
+        }
         public Subqueryable<T1,T2> WhereIF(bool isWhere, Func<T1, T2, bool> expression)
         {
             return this;

Src/Asp.NetCore2/SqlSugar/Interface/ICodeFirst.cs

@@ -18,5 +18,7 @@ namespace SqlSugar
         void InitTables<T, T2, T3>();
         void InitTables<T, T2, T3, T4>();
         SplitCodeFirstProvider SplitTables();
+        TableDifferenceProvider GetDifferenceTables<T>();
+        TableDifferenceProvider GetDifferenceTables(params Type[] types);
     }
 }

Src/Asp.NetCore2/SqlSugar/Utilities/CommonExtensions.cs

@@ -24,5 +24,9 @@ namespace SqlSugar
         {
             return thisValue;
         }
+        public static List<T> MappingField<T>(this T thisValue, Func<T, object> leftField, Func<object> rightField) where T:class
+        {
+            return new List<T>() { thisValue };
+        }
     }
 }

Src/Asp.NetCore2/SqlSugar/Utilities/UtilMethods.cs

@@ -69,6 +69,63 @@ namespace SqlSugar
             return isAsync;
         }
 
+
+        public static ConnectionConfig CopyConfig(ConnectionConfig it)
+        {
+            return new ConnectionConfig()
+            {
+                AopEvents =it.AopEvents==null?null:new AopEvents() { 
+                   DataExecuting=it.AopEvents?.DataExecuting,
+                   OnDiffLogEvent=it.AopEvents?.OnDiffLogEvent,
+                   OnError=it.AopEvents?.OnError,
+                   OnExecutingChangeSql=it.AopEvents?.OnExecutingChangeSql,
+                   OnLogExecuted=it.AopEvents?.OnLogExecuted,
+                   OnLogExecuting= it.AopEvents?.OnLogExecuting,
+                },
+                ConfigId = it.ConfigId,
+                ConfigureExternalServices =it.ConfigureExternalServices==null?null:new ConfigureExternalServices() { 
+                      AppendDataReaderTypeMappings=it.ConfigureExternalServices.AppendDataReaderTypeMappings,
+                      DataInfoCacheService=it.ConfigureExternalServices.DataInfoCacheService,
+                      EntityNameService=it.ConfigureExternalServices.EntityNameService,
+                      EntityService=it.ConfigureExternalServices.EntityService,
+                      RazorService=it.ConfigureExternalServices.RazorService,
+                      ReflectionInoCacheService=it.ConfigureExternalServices.ReflectionInoCacheService,
+                      SerializeService=it.ConfigureExternalServices.SerializeService,
+                      SplitTableService=it.ConfigureExternalServices.SplitTableService,
+                      SqlFuncServices=it.ConfigureExternalServices.SqlFuncServices
+                },
+                ConnectionString = it.ConnectionString,
+                DbType = it.DbType,
+                IndexSuffix = it.IndexSuffix,
+                InitKeyType = it.InitKeyType,
+                IsAutoCloseConnection = it.IsAutoCloseConnection,
+                LanguageType = it.LanguageType,
+                MoreSettings = it.MoreSettings == null ? null : new ConnMoreSettings()
+                {
+                    DefaultCacheDurationInSeconds = it.MoreSettings.DefaultCacheDurationInSeconds,
+                    DisableNvarchar = it.MoreSettings.DisableNvarchar,
+                    PgSqlIsAutoToLower = it.MoreSettings.PgSqlIsAutoToLower,
+                    IsAutoRemoveDataCache = it.MoreSettings.IsAutoRemoveDataCache,
+                    IsWithNoLockQuery = it.MoreSettings.IsWithNoLockQuery,
+                    TableEnumIsString = it.MoreSettings.TableEnumIsString,
+                    DisableMillisecond = it.MoreSettings.DisableMillisecond
+                },
+                SqlMiddle = it.SqlMiddle == null ? null : new SqlMiddle
+                {
+                    IsSqlMiddle = it.SqlMiddle.IsSqlMiddle,
+                    ExecuteCommand = it.SqlMiddle.ExecuteCommand,
+                    ExecuteCommandAsync = it.SqlMiddle.ExecuteCommandAsync,
+                    GetDataReader = it.SqlMiddle.GetDataReader,
+                    GetDataReaderAsync = it.SqlMiddle.GetDataReaderAsync,
+                    GetDataSetAll = it.SqlMiddle.GetDataSetAll,
+                    GetDataSetAllAsync = it.SqlMiddle.GetDataSetAllAsync,
+                    GetScalar = it.SqlMiddle.GetScalar,
+                    GetScalarAsync = it.SqlMiddle.GetScalarAsync
+                },
+                SlaveConnectionConfigs = it.SlaveConnectionConfigs
+            };
+        }
+
         public static bool IsAsyncMethod(MethodBase method)
         {
             if (method == null)