Pete Freitag Pete Freitag

IsValid - CFMX 7 Little Things

coldfusion

ColdFusion MX 7 added a new function called IsValid. The IsValid function performs data validation just like the CFPARAM tag, and supports all the new data types in cfparam (see my previous post) as well.

For instance if we want to validate the a variable has an integer value:

<cfif IsValid("integer", url.value)>
	Valid integer!
<cfelse>
	Invalid Integer!
</cfif>

For a range:

<cfif IsValid("range", url.value, 1, 100)>
	Value is between 1 and 100
<cfelse>
	Value is not between 1 and 100
</cfif>

And for regular expressions:

<cfif IsValid("regex", url.value, "[A-Z][a-z]+")>
	Word starts with a capital letter
<cfelse>
	Word does not match pattern.
</cfif>

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IsValid - CFMX 7 Little Things was first published on February 10, 2005.

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Comments

Hmm - according to the docs - the regex is a JS regex, not a CF regex. Anyone know why?
by Raymond Camden on 02/10/2005 at 9:35:42 PM UTC
According to Ray's post on his blog, it does infact use CF Regex. http://ray.camdenfamily.com/index.cfm?mode=entry&entry=02586859-DBB8-5F75-494E8BC257561C56
by Pete Freitag on 02/11/2005 at 5:30:05 PM UTC