But this means I have to write a whole funciton to query the database,
right?
for me, intializing and using sqltransformer by its api is not a piece of
cake...
----- Original Message -----
From: "Tony Collen" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Monday, July 19, 2004 9:50 PM
Subject: Re: Create user accounts with unqiue user names
> Christina wrote:
> > Basically I want to make a page (page1) which helps users to create
their accounts. Usernams and password are stored in a database;
> > So everytime, uername is checked to see if it has been taken, or
inanother word if there is any entry with the same value in that table.
> > If this username is already taken, then re-show page1 with all data that
user has inputed but add an error message for duplicated username
> > if this username is not taken, then go to next step.
> > I use CForm to define those widgets and flowscipt to navigate thourgh
those pages,
> > but now i found the problem is "how can flowscipt know the result of
database query? "
> > here is main steps:
> >
> > 1. flowscipt initialize page1 and show it
> > 2. user input data and pass basic validation (string length, etc), go
back to flowscipt
> > 3. flowscript use another pipeline (esql or sql transformer) to see if
there is any entry in the database with the same username
>
> Here's where I would differ on the choice of design for your system.
> The Flowscript could instantiate a component that would let you query
> your backend system -- you don't even have to bother using a pipeline
> for this. All you'd need to do is something like:
>
> var user = Backend.findUser("username");
>
> the findUser() function would obviously return the user it found in the
> database, and potentially null if the user doesn't exist. You could
> also just have it return a boolean value to test if the username exists
> or not.
>
> > 4. HOW CAN FLOWSCIPT GET THE RESULT OF THE QUERY????
> >
> > Thank you for your help!
>
> Regards,
> Tony
>
>
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