Merge branch 'dev' of https://github.com/sunkaixuan/SqlSugar

SqlServerTest/Demos/1_Query.cs

@@ -229,6 +229,13 @@ namespace OrmTest.Demo
             .OrderBy((st, sc) => sc.Id, OrderByType.Desc)
             .Select((st, sc) => new ViewModelStudent { Name = st.Name, SchoolId = sc.Id }).ToList();
 
+
+            //join  2
+            var list4_1 = db.Queryable<Student, School>((st, sc) => new object[] {
+              JoinType.Left,st.SchoolId==sc.Id&& st.Name == "jack"
+            }).ToList();
+
+
             //The simple use of Join 2 table
             var list5 = db.Queryable<Student, School>((st, sc) => st.SchoolId == sc.Id).Select((st,sc)=>new {st.Name,st.Id,schoolName=sc.Name}).ToList();
 

SqlSugar/Abstract/CodeFirstProvider/CodeFirstProvider.cs

@@ -22,6 +22,10 @@ namespace SqlSugar
         }
         public void InitTables(Type entityType)
         {
+            if (!this.Context.DbMaintenance.IsAnySystemTablePermissions())
+            {
+                Check.Exception(true, "Dbfirst and  Codefirst requires system table permissions");
+            }
             Check.Exception(this.Context.IsSystemTablesConfig, "Please set SqlSugarClent Parameter ConnectionConfig.InitKeyType=InitKeyType.Attribute ");
             var executeResult = Context.Ado.UseTran(() =>
             {

SqlSugar/Abstract/DbFirstProvider/DbFirstProvider.cs

@@ -39,6 +39,9 @@ namespace SqlSugar
 
         public void Init()
         {
+            if (!this.Context.DbMaintenance.IsAnySystemTablePermissions()) {
+                Check.Exception(true, "Dbfirst and  Codefirst requires system table permissions");
+            }
             this.TableInfoList =this.Context.RewritableMethods.TranslateCopy(this.Context.DbMaintenance.GetTableInfoList());
             var viewList = this.Context.RewritableMethods.TranslateCopy(this.Context.DbMaintenance.GetViewInfoList());
             if (viewList.IsValuable())

SqlSugar/Abstract/DbMaintenanceProvider/Methods.cs

@@ -36,13 +36,31 @@ namespace SqlSugar
         }
         public virtual List<string> GetIsIdentities(string tableName)
         {
-            var result = GetColumnInfosByTableName(tableName).Where(it => it.IsIdentity).ToList();
+            string cacheKey = "DbMaintenanceProvider.GetIsIdentities" + tableName.ToLower();
-            return result.Select(it => it.DbColumnName).ToList();
+            return this.Context.RewritableMethods.GetCacheInstance<List<string>>().Func(cacheKey,
+                    (cm, key) =>
+                    {
+                        return cm[cacheKey];
+
+                    }, (cm, key) =>
+                    {
+                        var result = GetColumnInfosByTableName(tableName).Where(it => it.IsIdentity).ToList();
+                        return result.Select(it => it.DbColumnName).ToList();
+                    });
         }
         public virtual List<string> GetPrimaries(string tableName)
         {
-            var result = GetColumnInfosByTableName(tableName).Where(it => it.IsPrimarykey).ToList();
+            string cacheKey = "DbMaintenanceProvider.GetPrimaries" + tableName.ToLower();
-            return result.Select(it => it.DbColumnName).ToList();
+            return this.Context.RewritableMethods.GetCacheInstance<List<string>>().Func(cacheKey,
+            (cm, key) =>
+            {
+                return cm[cacheKey];
+
+            }, (cm, key) =>
+            {
+                var result = GetColumnInfosByTableName(tableName).Where(it => it.IsPrimarykey).ToList();
+                return result.Select(it => it.DbColumnName).ToList();
+            });
         }
         #endregion
 
@@ -81,6 +99,19 @@ namespace SqlSugar
         {
             return this.Context.Ado.GetInt("select  object_id('" + constraintName + "')") > 0;
         }
+        public virtual bool IsAnySystemTablePermissions()
+        {
+            string sql = this.CheckSystemTablePermissionsSql;
+            try
+            {
+                this.Context.Ado.ExecuteCommand(sql);
+                return true;
+            }
+            catch
+            {
+                return false;
+            }
+        }
         #endregion
 
         #region DDL

SqlSugar/Abstract/DbMaintenanceProvider/Properties.cs

@@ -32,6 +32,10 @@ namespace SqlSugar
         protected abstract string RenameColumnSql { get; }
         #endregion
 
+        #region Check
+        protected abstract string CheckSystemTablePermissionsSql { get; }
+        #endregion
+
         #region Scattered
         protected abstract string CreateTableNull { get; }
         protected abstract string CreateTableNotNull { get; }

SqlSugar/Common/PubConst.cs

@@ -20,6 +20,7 @@ namespace SqlSugar
         internal static Type BoolType = typeof(bool);
         internal static Type ObjType = typeof(object);
         internal static Type DobType = typeof(double);
+        internal static Type FloatType=typeof(float);
         internal static Type ModelType= typeof(ModelContext);
         internal static Type DicSS = typeof(KeyValuePair<string, string>);
         internal static Type DicSi = typeof(KeyValuePair<string, int>);

SqlSugar/ExpressionsToSql/Common/SugarParameter.cs

@@ -55,6 +55,18 @@ namespace SqlSugar
             {
                 this.DbType = System.Data.DbType.Double;
             }
+            else if (type == PubConst.DecType)
+            {
+                this.DbType = System.Data.DbType.Decimal;
+            }
+            else if (type == PubConst.ByteType)
+            {
+                this.DbType = System.Data.DbType.Byte;
+            }
+            else if (type == PubConst.FloatType)
+            {
+                this.DbType = System.Data.DbType.Single;
+            }
         }
         public SugarParameter(string name, object value, bool isOutput)
         {

SqlSugar/Interface/IDbMaintenance.cs

@@ -22,6 +22,7 @@ namespace SqlSugar
         bool IsPrimaryKey(string tableName, string column);
         bool IsIdentity(string tableName, string column);
         bool IsAnyConstraint(string ConstraintName);
+        bool IsAnySystemTablePermissions();
         #endregion
 
         #region DDL

SqlSugar/Realization/SqlServer/DbMaintenance/SqlServerDbMaintenance.cs

@@ -152,13 +152,25 @@ namespace SqlSugar
                 return "ALTER TABLE {0} DROP CONSTRAINT  {1}";
             }
         }
-        protected override string RenameColumnSql {
+        protected override string RenameColumnSql
-            get {
+        {
+            get
+            {
                 return "exec sp_rename '{0}.{1}','{2}','column';";
             }
         }
         #endregion
 
+        #region Check
+        protected override string CheckSystemTablePermissionsSql
+        {
+            get
+            {
+                return "select top 1 id from sysobjects";
+            }
+        }
+        #endregion
+
         #region Scattered
         protected override string CreateTableNull
         {

SqlSugar/SqlSugarAccessory.cs

@@ -181,8 +181,12 @@ namespace SqlSugar
         {
             this.CreateQueryable<T>(queryable);
             string shortName = string.Empty;
-            queryable.SqlBuilder.QueryBuilder.JoinQueryInfos = this.GetJoinInfos(joinExpression, ref shortName, types);
+            List<SugarParameter> paramters =new List<SugarParameter>();
+            queryable.SqlBuilder.QueryBuilder.JoinQueryInfos = this.GetJoinInfos(joinExpression,ref  paramters, ref shortName, types);
             queryable.SqlBuilder.QueryBuilder.TableShortName = shortName;
+            if (paramters != null) {
+                queryable.SqlBuilder.QueryBuilder.Parameters.AddRange(paramters);
+            }
         }
         protected void CreateEasyQueryJoin<T>(Expression joinExpression, Type[] types, ISugarQueryable<T> queryable) where T : class, new()
         {
@@ -194,7 +198,7 @@ namespace SqlSugar
         #endregion
 
         #region Private methods
-        protected List<JoinQueryInfo> GetJoinInfos(Expression joinExpression, ref string shortName, params Type[] entityTypeArray)
+        protected List<JoinQueryInfo> GetJoinInfos(Expression joinExpression,ref List<SugarParameter> parameters, ref string shortName, params Type[] entityTypeArray)
         {
             List<JoinQueryInfo> result = new List<JoinQueryInfo>();
             var lambdaParameters = ((LambdaExpression)joinExpression).Parameters.ToList();
@@ -204,6 +208,7 @@ namespace SqlSugar
             expressionContext.Resolve(joinExpression, ResolveExpressType.Join);
             int i = 0;
             var joinArray = expressionContext.Result.GetResultArray();
+            parameters = expressionContext.Parameters;
             foreach (var entityType in entityTypeArray)
             {
                 var isFirst = i == 0; ++i;