public override SqlProvider FormatToPageList <T>(int pageIndex, int pageSize)
{
var orderbySql = ResolveExpression.ResolveOrderBy(SetContext.OrderbyExpressionList);
if (string.IsNullOrEmpty(orderbySql))
{
throw new DapperExtensionException("order by takes precedence over pagelist");
}
var selectSql = ResolveExpression.ResolveSelect(typeof(T).GetProperties(), SetContext.SelectExpression, pageSize);
var fromTableSql = FormatTableName();
var nolockSql = ResolveExpression.ResolveWithNoLock(SetContext.NoLock);
var whereParams = ResolveExpression.ResolveWhere(SetContext.WhereExpression);
var whereSql = whereParams.SqlCmd;
Params = whereParams.Param;
SqlString = $"SELECT COUNT(1) {fromTableSql} {nolockSql} {whereSql};";
SqlString += $@"{selectSql}
FROM ( SELECT *
,ROW_NUMBER() OVER ( {orderbySql} ) AS ROWNUMBER
{fromTableSql} {nolockSql}
{whereSql}
) T
WHERE ROWNUMBER > {(pageIndex - 1) * pageSize}
AND ROWNUMBER <= {pageIndex * pageSize} {orderbySql};";
return(this);
}
public override SqlProvider FormatSum <T>(LambdaExpression lambdaExpression)
{
var selectSql = ResolveExpression.ResolveSum(typeof(T).GetProperties(), lambdaExpression);
var fromTableSql = FormatTableName();
var whereParams = ResolveExpression.ResolveWhere(SetContext.WhereExpression);
var nolockSql = ResolveExpression.ResolveWithNoLock(SetContext.NoLock);
var whereSql = whereParams.SqlCmd;
Params = whereParams.Param;
SqlString = $"{selectSql} {fromTableSql} {nolockSql} {whereSql} ";
return(this);
}
public override SqlProvider FormatExists()
{
var selectSql = "SELECT TOP 1 1";
var fromTableSql = FormatTableName();
var nolockSql = ResolveExpression.ResolveWithNoLock(SetContext.NoLock);
var whereParams = ResolveExpression.ResolveWhere(SetContext.WhereExpression);
var whereSql = whereParams.SqlCmd;
Params = whereParams.Param;
SqlString = $"{selectSql} {fromTableSql} {nolockSql} {whereSql}";
return(this);
}
public override SqlProvider FormatGet <T>()
{
var selectSql = ResolveExpression.ResolveSelect(typeof(T).GetProperties(), SetContext.SelectExpression, 1);
var fromTableSql = FormatTableName();
var nolockSql = ResolveExpression.ResolveWithNoLock(SetContext.NoLock);
var whereParams = ResolveExpression.ResolveWhere(SetContext.WhereExpression);
var whereSql = whereParams.SqlCmd;
Params = whereParams.Param;
var orderbySql = ResolveExpression.ResolveOrderBy(SetContext.OrderbyExpressionList);
SqlString = $"{selectSql} {fromTableSql} {nolockSql} {whereSql} {orderbySql}";
return(this);
}
