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Can't fetch row... [message #14287]

Thu, 21 February 2008 18:09

indiocolifa
Messages: 49
Registered: January 2008
Location: Argentina

Member

What I need is a user/pwd validation, my table is defined with the schema:

TABLE_(users)
   SERIAL_ (id) PRIMARY_KEY
   STRING_ (user, 30) NOT_NULL
   STRING_ (realname, 30) NOT_NULL
   STRING_ (passwd, 30) NOT_NULL
END_TABLE

The validation is:

void LoginWindow::BtnOkPush()
{
	Sql sql(*(G_STATE->GetPsqlSession()));
	sql*Select(SqlAll()).From(users)
		.Where(user == (String)editLoginName.GetData() 
		&& passwd == (String)editPassword.GetData() );
	
	if (!sql.Fetch())
		Exclamation ("Incorrect pass and/or username.");
	else
	{
		G_STATE->SetCurrentUser(String(sql[realname]));
		PromptOK("Welcome [* " + String(sql[realname]) + "]");
	}
}

The validation works in the sense that entering an invalid user/pwd combination displays the proper message. But when you enter data for a row that exists, the Welcome message appears without the name (I mean, seems that sql[realname] is empty!).

Any ideas?

P: How I can trace SQL execution?

[Updated on: Thu, 21 February 2008 18:10]

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Re: Can't fetch row... [message #14288 is a reply to message #14287]

Thu, 21 February 2008 18:40

indiocolifa
Messages: 49
Registered: January 2008
Location: Argentina

Member

I've discovered that I can refer successfully with sql[0],sql[1]... but not with sql[username], for example.

How I can refer to field names instead of numbers?

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Re: Can't fetch row... [message #14306 is a reply to message #14288]

Fri, 22 February 2008 10:11

mirek
Messages: 14255
Registered: November 2005

Ultimate Member

indiocolifa wrote on Thu, 21 February 2008 12:40

I've discovered that I can refer successfully with sql[0],sql[1]... but not with sql[username], for example.

How I can refer to field names instead of numbers?

IMO your .sch inclusion is wrong, that is the most likely reason. But we need testcase for further advice.

Also, it is better to have upper-case column names, to avoid clashes with e.g. local variables.

Mirek

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