Exemplo n.º 1
0
        /// <summary>
        ///
        /// </summary>
        /// <param name="type"></param>
        /// <param name="bDataBase"></param>
        /// <param name="bWithLock"></param>
        /// <param name="bNeedParams"></param>
        /// <param name="bNeedQueryProvider"></param>
        protected DMS(Type type, string bDataBase, bool bWithLock, bool bNeedParams, bool bNeedQueryProvider)
        {
            DMSFrameException.ThrowIfNull(type);

            this.DataType    = type;
            this.CurrentType = type;
            TableMappingAttribute attribute = DMSExpression.GetTableMappingAttribute(type);

            this.TableExpressioin   = DMSExpression.GetTableExpression(attribute.DMSDbType);
            this.ColumnsExpressioin = DMSExpression.GetColumnsExpression(attribute.DMSDbType);
            this.WhereExpressioin   = DMSExpression.GetWhereExpression(attribute.DMSDbType);
            this.OrderByExpressioin = DMSExpression.GetOrderByExpression(attribute.DMSDbType);
            this.GroupByExpression  = DMSExpression.GetGroupByExpression(attribute.DMSDbType);
            this.HavingExpression   = DMSExpression.GetHavingExpression(attribute.DMSDbType);
            this.SplitExpression    = DMSExpression.GetSplitExpression(attribute);
            this.Provider           = DMSExpression.GetDbProvider(attribute.DMSDbType, attribute.ConfigName);

            this.dynamicParameters = new DynamicParameters();

            DMSFrameException.ThrowIfNull(this.TableExpressioin, this.ColumnsExpressioin, this.WhereExpressioin, this.OrderByExpressioin, this.GroupByExpression, this.HavingExpression);

            if (!string.IsNullOrEmpty(bDataBase))
            {
                this.TableExpressioin.bDataBase = bDataBase;
                DMSDataBase myDb = new DMSDataBase(bDataBase);
                this.TableExpressioin.Append <DMSDataBase, DMSDataBase>(q => myDb);
            }
            this.TableExpressioin.WithLock = bWithLock;
            this.ExcuteType = DMSExcuteType.SELECT;

            this.TableExpressioin.NeedParams   = bNeedParams;
            this.ColumnsExpressioin.NeedParams = bNeedParams;
            this.WhereExpressioin.NeedParams   = bNeedParams;
            this.OrderByExpressioin.NeedParams = bNeedParams;
            this.GroupByExpression.NeedParams  = bNeedParams;
            this.HavingExpression.NeedParams   = bNeedParams;


            this.TableExpressioin.SplitExpression   = this.SplitExpression;
            this.ColumnsExpressioin.SplitExpression = this.SplitExpression;
            this.WhereExpressioin.SplitExpression   = this.SplitExpression;
            this.OrderByExpressioin.SplitExpression = this.SplitExpression;
            this.GroupByExpression.SplitExpression  = this.SplitExpression;
            this.HavingExpression.SplitExpression   = this.SplitExpression;
        }
Exemplo n.º 2
0
        /// <summary>
        ///
        /// </summary>
        /// <param name="SplitPagerFlag"></param>
        /// <param name="PageIndex"></param>
        /// <param name="PageSize"></param>
        /// <param name="tableKey"></param>
        /// <param name="orderSql"></param>
        public virtual void AnalyzeExpressionPager(bool SplitPagerFlag, int PageIndex, int PageSize, string tableKey, string orderSql)
        {
            StringBuilder tempSql = new StringBuilder(resultSql.ToString());

            resultSqlCount = new StringBuilder();
            if (SplitPagerFlag && PageIndex != 1)
            {
                DMSFrameException.ThrowIfNull(string.IsNullOrEmpty(orderSql), "分页必须包含排序字段!");
            }
            if (SplitPagerFlag)
            {
                bool flag = this.DMSFrame.Provider.ConstructPageSplitableSelectStatementForCount(resultSql.ToString(), ref resultSqlCount);
                if (!flag)
                {
                    throw new DMSFrameException("获取Count查询出错!");
                }
            }
            string splitSql;

            if (PageIndex == 1)
            {
                bool flag = this.DMSFrame.Provider.ConstructPageSplitableSelectStatementForFirstPage(resultSql.ToString(), PageSize, out splitSql);
                if (!flag)
                {
                    throw new DMSFrameException("获取TOP查询出错!");
                }
                this.resultSql = new StringBuilder(splitSql);
            }
            else
            {
                bool flag = this.DMSFrame.Provider.ConstructPageSplitableSelectStatement(resultSql.ToString(), this.MemberSql, PageIndex, PageSize, tableKey, out splitSql);
                if (!flag)
                {
                    throw new DMSFrameException("获取TOP查询出错!");
                }
                this.resultSql = new StringBuilder(splitSql);
            }
        }