/// <summary> /// 创建 INSRT 命令 /// </summary> /// <param name="dbQuery">查询语义</param> /// <param name="token">解析上下文</param> /// <returns></returns> protected override RawCommand ResolveInsertCommand <T>(IDbQueryableInfo_Insert dbQuery, ResolveToken token) { ISqlBuilder builder = this.CreateSqlBuilder(token); TableAlias aliases = new TableAlias(); var typeRuntime = TypeRuntimeInfoCache.GetRuntimeInfo <T>(); if (dbQuery.Entity != null) { // 如果没有Sequence列,使用 INSERT ALL INTO 语法,否则就一条一条逐行写入~~ // 批量 INSERT,自增列不会自动赋值 object entity = dbQuery.Entity; ISqlBuilder seg_Columns = this.CreateSqlBuilder(token); ISqlBuilder seg_Values = this.CreateSqlBuilder(token); // 指定插入列 MemberAccessorCollection memberAccessors = typeRuntime.Members; if (dbQuery.EntityColumns != null && dbQuery.EntityColumns.Count > 0) { memberAccessors = new MemberAccessorCollection(); for (int i = 0; i < dbQuery.EntityColumns.Count; i++) { Expression curExpr = dbQuery.EntityColumns[i]; if (curExpr.NodeType == ExpressionType.Lambda) { curExpr = (curExpr as LambdaExpression).Body.ReduceUnary(); } if (curExpr.NodeType != ExpressionType.MemberAccess) { throw new XFrameworkException("Can't read field name from expression {0}", dbQuery.EntityColumns[i]); } MemberExpression member = curExpr as MemberExpression; string name = member.Member.Name; memberAccessors[name] = typeRuntime.Members[name]; } } // 自增列参数 IDbDataParameter seqParameter = null; // 自增列标记 ColumnAttribute seqColumn = null; foreach (var m in memberAccessors) { var column = m.Column; if (column != null && column.NoMapped) { continue; } if (m.ForeignKey != null) { continue; } if (m.Member.MemberType == System.Reflection.MemberTypes.Method) { continue; } seg_Columns.AppendMember(m.Member.Name); seg_Columns.Append(','); if (m == typeRuntime.Identity) { seqColumn = column; if (dbQuery.Bulk == null) { // 非批量INSERT,产生一个 OUTPUT 类型的参数 string pName = string.Format("{0}p{1}", this.ParameterPrefix, token.Parameters.Count); var database = token.DbContext.Database; seqParameter = database.CreateParameter(pName, -1, direction: ParameterDirection.Output); token.Parameters.Add(seqParameter); seg_Values.Append(seqParameter.ParameterName); seg_Values.Append(','); } else { seg_Values.Append(((OracleColumnAttribute)column).SEQName); seg_Values.Append(".NEXTVAL"); seg_Values.Append(','); } } else { var value = m.Invoke(entity); string seg = this.DbValue.GetSqlValueWidthDefault(value, token, column); seg_Values.Append(seg); seg_Values.Append(','); } } seg_Columns.Length -= 1; seg_Values.Length -= 1; if (dbQuery.Bulk == null) { // 非批量INSERT,产生一个 OUTPUT 类型的参数 if (seqParameter != null) { seqParameter.Direction = ParameterDirection.Output; seqParameter.DbType = DbType.Int64; builder.Append("SELECT "); builder.Append(((OracleColumnAttribute)seqColumn).SEQName); builder.Append(".NEXTVAL INTO "); builder.Append(seqParameter.ParameterName); builder.Append(" FROM DUAL;"); builder.AppendNewLine(); //useSEQ = true; } builder.Append("INSERT "); } else { // 批量 INSERT if (!dbQuery.Bulk.OnlyValue || seqColumn != null) { builder.Append("INSERT "); } // 如果有自增列则不使用 INSERT ALL INTO 语法 if (!dbQuery.Bulk.OnlyValue && seqColumn == null) { builder.Append("ALL "); } } builder.Append("INTO "); builder.AppendMember(typeRuntime.TableName, !typeRuntime.IsTemporary); builder.Append('('); builder.Append(seg_Columns); builder.Append(')'); builder.AppendNewLine(); builder.AppendTab(); builder.Append("VALUES"); builder.Append('('); builder.Append(seg_Values); builder.Append(')'); if (dbQuery.Bulk == null) { builder.Append(';'); } else { if (seqColumn != null) { if (dbQuery.Bulk.IsEndPos) { builder.Append(";"); } else { builder.AppendNewLine(";"); } } else { builder.AppendNewLine(); if (dbQuery.Bulk.IsEndPos) { builder.Append("SELECT 1 FROM DUAL;"); } } } } else if (dbQuery.Query != null) { builder.Append("INSERT INTO "); builder.AppendMember(typeRuntime.TableName, !typeRuntime.IsTemporary); builder.Append('('); int i = 0; MappingCommand cmd = this.ResolveSelectCommand(dbQuery.Query, 0, false, token) as MappingCommand; foreach (var column in cmd.PickColumns) { builder.AppendMember(column.Name); if (i < cmd.PickColumns.Count - 1) { builder.Append(','); } i++; } builder.Append(')'); builder.AppendNewLine(); builder.Append(cmd.CommandText); builder.Append(';'); } var result = new RawCommand(builder.ToString(), builder.Token != null ? builder.Token.Parameters : null, System.Data.CommandType.Text); return(result); }
/// <summary> /// 创建 INSRT 命令 /// </summary> /// <param name="dbQuery">查询语义</param> /// <param name="token">解析上下文</param> /// <returns></returns> protected override RawCommand ResolveInsertCommand <T>(IDbQueryableInfo_Insert dbQuery, ResolveToken token) { TableAlias aliases = new TableAlias(); ISqlBuilder builder = this.CreateSqlBuilder(token); var typeRuntime = TypeRuntimeInfoCache.GetRuntimeInfo <T>(); if (dbQuery.Entity != null) { object entity = dbQuery.Entity; ISqlBuilder seg_Columns = this.CreateSqlBuilder(token); ISqlBuilder seg_Values = this.CreateSqlBuilder(token); // 指定插入列 MemberAccessorCollection memberAccessors = typeRuntime.Members; if (dbQuery.EntityColumns != null && dbQuery.EntityColumns.Count > 0) { memberAccessors = new MemberAccessorCollection(); for (int i = 0; i < dbQuery.EntityColumns.Count; i++) { Expression curExpr = dbQuery.EntityColumns[i]; if (curExpr.NodeType == ExpressionType.Lambda) { curExpr = (curExpr as LambdaExpression).Body.ReduceUnary(); } if (curExpr.NodeType != ExpressionType.MemberAccess) { throw new XFrameworkException("Can't read field name from expression {0}", dbQuery.EntityColumns[i]); } MemberExpression member = curExpr as MemberExpression; string name = member.Member.Name; memberAccessors[name] = typeRuntime.Members[name]; } } foreach (var m in memberAccessors) { var column = m.Column; if (column != null && column.NoMapped) { continue; } if (m.ForeignKey != null) { continue; } if (m.Member.MemberType == System.Reflection.MemberTypes.Method) { continue; } if (m != typeRuntime.Identity) { seg_Columns.AppendMember(m.Member.Name); seg_Columns.Append(','); var value = m.Invoke(entity); string seg = this.DbValue.GetSqlValueWidthDefault(value, token, column); seg_Values.Append(seg); seg_Values.Append(','); } } seg_Columns.Length -= 1; seg_Values.Length -= 1; if (dbQuery.Bulk == null || !dbQuery.Bulk.OnlyValue) { builder.Append("INSERT INTO "); builder.AppendMember(typeRuntime.TableName, !typeRuntime.IsTemporary); builder.Append('('); builder.Append(seg_Columns); builder.Append(')'); builder.AppendNewLine(); builder.AppendTab(); builder.Append("VALUES"); } builder.Append('('); builder.Append(seg_Values); builder.Append(')'); if (dbQuery.Bulk != null && !dbQuery.Bulk.IsEndPos) { builder.Append(","); } if (dbQuery.Bulk == null && typeRuntime.Identity != null) { builder.Append(';'); builder.AppendNewLine(); builder.AppendFormat("SELECT LAST_INSERT_ROWID()"); builder.Append(" AS "); builder.Append(this.QuotePrefix); builder.Append(Constant.AUTO_INCREMENT_NAME); builder.Append(this.QuoteSuffix); } } else if (dbQuery.Query != null) { builder.Append("INSERT INTO "); builder.AppendMember(typeRuntime.TableName, !typeRuntime.IsTemporary); builder.Append('('); int i = 0; MappingCommand cmd = this.ResolveSelectCommandImpl(dbQuery.Query, 0, false, token) as MappingCommand; //for (int i = 0; i < seg.Columns.Count; i++) foreach (var column in cmd.PickColumns) { builder.AppendMember(column.Name); if (i < cmd.PickColumns.Count - 1) { builder.Append(','); } i++; } builder.Append(')'); builder.AppendNewLine(); builder.Append(cmd.CommandText); } if (dbQuery.Bulk == null || dbQuery.Bulk.IsEndPos) { builder.Append(';'); } return(new RawCommand(builder.ToString(), builder.Token != null ? builder.Token.Parameters : null, System.Data.CommandType.Text)); }
/// <summary> /// 创建 INSRT 命令 /// </summary> /// <param name="dbQuery">查询语义</param> /// <param name="token">解析上下文</param> /// <returns></returns> protected abstract RawCommand ResolveInsertCommand <T>(IDbQueryableInfo_Insert dbQuery, ResolveToken token);