Conditional statement in CFSet

Question

I can't remember what it is called, but I need to do a sort of conditional statement inside of a CFSet statement. What I mean is something like the following

siteSettings = {
    mailserversmtpport = resourceBean.getValue('mailsmtp'), // SMTP Port (If the method returns no len() then default to 25)
    mailserverpopport = resourceBean.getValue('mailpop'), // POP port (If the method returns no len() then default to 110)
};

So I am building a structure with the smtp and pop port for a mail server. I have a method call that gets a value from a bean. If that value doesn't exist then it is just going to return a 0 length string. Is it possible (in ColdFusion 8) to have the value be 25 and 110 if returned values have no length without do cfif statements?

score 3 · Answer 1 · answered Jul 27 '11 at 02:21

3

siteSettings = {
mailserversmtpport = iif(len(resourceBean.getValue('mailsmtp')),de(resourceBean.getValue('mailsmtp')),de(25)),
mailserverpopport = iif(len(resourceBean.getValue('mailpop')),de(resourceBean.getValue('mailpop')),de(110))
};

answered Jul 27 '11 at 02:21

Shawn Holmes

3,752
22
25

1

As the values involved are numbers you don't need to use the delayed evaluation, De(), function. Less typing and probably a little faster. – CfSimplicity Jul 27 '11 at 08:45
1

I try to avoid using IIF whenever possible, but this is the correct way to do what you're asking. It is much more preferable to use IF/ELSE statements, rather than IIF inside a CFSET. – Eric Belair Jul 27 '11 at 13:40
@CfSimplicity, force of habit on my part. You are absolutely correct. – Shawn Holmes Jul 27 '11 at 20:49

score 3 · Accepted Answer · answered Jul 27 '11 at 10:41

The neatest, and in my opinion best, way to do this would be to add two methods to your bean: getMailSmtp() and getMailPop().

Put the conditional logic in there - so the method returns your default value if it's not specified.

Something like this:

<cffunction name="getMailSmtp" returntype="string" output="false">
    <cfif len(getValue("mailsmtp"))>
        <cfreturn getValue("mailsmtp") />
    <cfelse>
        <cfreturn 25 />
    </cfif>
</cffunction>

Alternatively, you could alter your getValue() method to accept a second argument - a default value. Then, if the value doesn't exist, it would return the default:

resourceBean.getValue("mailsmtp", 25)

I'd personally go for the first method, as this means that any time you call getMailSmtp() in your application, the logic is applied.

You could even combine the methods, so your getMailSmtp() method returns getValue("mailsmtp", 25).

Good thinking, Seb. Generally speaking, the "smarter" you can make your beans the better. — CfSimplicity, Jul 28 '11 at 08:07

score 0 · Answer 3 · answered Jul 27 '11 at 03:31

0

Not a big fan of iif. Your probably thinking of the ternary operator.

which is

<cfset x > 3 ? true : false />

But it's CF9 only

answered Jul 27 '11 at 03:31

Dale Fraser

4,623
7
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Me neither. Unfortunately they are using CF8 though. – Leigh Jul 27 '11 at 03:38
I new about iif, but I was looking for the ternary operator. I like sebduggan's answer the best though as it is clean. – Dave Long Jul 27 '11 at 18:46

Conditional statement in CFSet

3 Answers3