public void ModifyTest()
{
var tUser = Tables.User();
var tCustomer = Tables.Customer();
IExpr e = Select(tUser.UserId, tUser.FirstName, tCustomer.CustomerId)
.From(tUser)
.InnerJoin(tCustomer, on: tCustomer.UserId == tUser.UserId & tUser.Version == 1)
.Where(tUser.UserId.In(1))
.Done();
//Before
Assert.AreEqual("SELECT [A0].[UserId],[A0].[FirstName],[A1].[CustomerId] " +
"FROM [dbo].[user] [A0] JOIN [dbo].[Customer] [A1] " +
"ON [A1].[UserId]=[A0].[UserId] AND [A0].[Version]=1 " +
"WHERE [A0].[UserId] IN(1)", e.ToSql());
e = e.SyntaxTree()
.Modify(subE =>
{
if (subE is ExprIn)
{
return(null);
}
if (subE is ExprBooleanAnd and && and.Right is ExprBooleanEq eq && eq.Right is ExprInt32Literal)
{
return(and.Left);
}
if (subE is ExprColumnName c && c.Name == "UserId")
{
return(new ExprColumnName("UserNewId"));
}
return(subE);
});
//After
Assert.AreEqual("SELECT [A0].[UserNewId],[A0].[FirstName],[A1].[CustomerId] " +
"FROM [dbo].[user] [A0] JOIN [dbo].[Customer] [A1] " +
"ON [A1].[UserNewId]=[A0].[UserNewId]", e.ToSql());
}
