openbd cfloop over a date - date

Question

I'm trying to convert my sites from CF8 to openBD. I have a cfloop in a site that loops over a date range.
In essence, I want to insert a new record into the db for every 2 weeks (step) of a date range (from and to)
my loop looks like this...
<cfloop
from = "#form.startDate#"
to = "#form.endDate#"
index = "i"
step = "#theStep#"
>
This works perfectly in CF8, in openBD, I get this error...
Data not supported: value [11/05/09] is not a number
Any ideas of a work around?
Thx

Answer 1

Your problem lies in not checking for ambiguous locale dependent date strings from your FORM.
A more robust version would be this:
<cfset SetLocale("English (US)")> <!--- set expected input locale here --->
<cfif LSIsDate(form.startDate) and LSIsDate(form.endDate)>
<cfset theStep = 14>
<cfloop
from = "#LSParseDate(form.startDate)#"
to = "#LSParseDate(form.endDate)#"
index = "i"
step = "#theStep#"
>
<!--- do stuff --->
</cfloop>
<cfelse>
<!--- output some error message --->
</cfif>
It would be helpful to restrict people to entering unambiguous date formats into the FORM, like "yyyy-mm-dd".
The "value is not a number" error comes from the fact that the loop still goes over numbers, even if you feed it dates. It uses a numerical representation of these dates then, but they must be valid and intelligible for that to work.

Answer 2

I can't see your code, but here's my first suggestion:
<cfset current = [your begin date]>
<cfloop condition = "datecompare(enddate, current)">
[do stuff]
<cfset current = dateadd('d', 14, current)>
</cfloop>
HTH.

Answer 3

As Ben says, your code isn't there - you need to use the 101 010 icon to create a code block for it.
Here's another solution which should work:
<cfloop index="Current" from="#parseDateTime(StartDate)#" to="#parseDateTime(EndDate)#" step="14">
[do stuff]
</cfloop>