take your point, I get it now :) ----- Original Message ----- From: "Rich Wild" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Friday, June 06, 2003 5:11 PM Subject: RE: [ cf-dev ] form.fieldnames
> > It does seem a little overcomplicated doing it this way > > though. Surely it > > would be easier to loop the names of the fields to set up form params > > defaulted to 0 and then if a value of 1 is passed, insert > > into the join > > table? > > not really, as that way you need to find all your ids again (prob by a > database query), then loop over these using <cfparam> to default them all, > and then check whether each one is zero or not before inserting. > > If you do it the way Ian was doing it, then you only need one <cfparam> to > ensure that there the form variable exists, even if its empty, and then you > just need to loop over the that list. > > If its empty, no inserts happen, if its not, then those ids get entered into > the database. You don't need to check if they're zero or something else. > > so compare this: > > form.cfm =========== > <cfoutput query="myIds"> > <input type="checkbox" name="myBox" value="#id#"><br> > </cfoutput> > ==================== > > action.cfm ========== > <cfparam name="form.myBox" default=""> > > <cfif listlen(form.myBox)> > <cfquery..... > Do insert..... > </cfif> > ===================== > > to this: > > form.cfm =========== > <cfoutput query="myIds"> > <input type="checkbox" name="myBox_#id#" value="1"><br> > </cfoutput> > ===================== > > action.cfm ========== > <cfquery name="myBoxes" datasource="#dsn#"> > SELECT id FROM myBoxes > </cfquery> > > <cfloop query="myBoxes"> > <cfparam name="form.myBox_#id#" default="0"> > </cfloop> > > <cfloop query="myBoxes"> > <cfif form["myBox_" & id]> > <cfquery... > Do Insert..... > </cfif> > </cfloop> > ===================== > > > Method 1 is faster <cf_emphasis>in this instance</cf_emphasis>. > > There are of course, other times when you method would be more correct, > which I can't even begin to think of this close to the booze hour. > > Rich > > > -- > ** Archive: http://www.mail-archive.com/dev%40lists.cfdeveloper.co.uk/ > > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > For human help, e-mail: [EMAIL PROTECTED] > > -- ** Archive: http://www.mail-archive.com/dev%40lists.cfdeveloper.co.uk/ To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] For human help, e-mail: [EMAIL PROTECTED]
