public override SqlProvider FormatUpdate <T>(T entity)
{
var update = ResolveExpression.ResolveUpdate <T>(a => entity);
var where = ResolveExpression.ResolveWhere(entity);
var whereSql = where.SqlCmd;
Params = where.Param;
Params.AddDynamicParams(update.Param);
SqlString = $"UPDATE {FormatTableName(false)} {update.SqlCmd} {whereSql}";
return(this);
}
public override SqlProvider FormatUpdate <T>(Expression <Func <T, T> > updateExpression)
{
var update = ResolveExpression.ResolveUpdate(updateExpression);
var where = ResolveExpression.ResolveWhere(SetContext.WhereExpression);
var whereSql = where.SqlCmd;
Params = where.Param;
Params.AddDynamicParams(update.Param);
SqlString = $"UPDATE {FormatTableName(false)} {update.SqlCmd} {whereSql}";
return(this);
}
public override SqlProvider FormatUpdateSelect <T>(Expression <Func <T, T> > updator)
{
var update = ResolveExpression.ResolveUpdate(updator);
var selectSql = ResolveExpression.ResolveSelectOfUpdate(typeof(T).GetProperties(), SetContext.SelectExpression);
var where = ResolveExpression.ResolveWhere(SetContext.WhereExpression);
var whereSql = where.SqlCmd;
Params = where.Param;
Params.AddDynamicParams(update.Param);
var topNum = SetContext.TopNum;
var topSql = topNum.HasValue ? $" TOP ({topNum.Value})" : "";
SqlString = $"UPDATE {topSql} {FormatTableName(false)} WITH ( UPDLOCK, READPAST ) {update.SqlCmd} {selectSql} {whereSql}";
return(this);
}