cfquery param on query containing if statment

Question

How do you use cfqueryparam on this line of code?

SET mailing_list = <CFIF IsDefined("FORM.mailing_list")>#FORM.mailing_list#<CFELSE>0</CFIF>

Answer 1

you would just use two separate cfqueryparam's

SET mailing_list = 
<cfif StructKeyExists(form,'mailing_lis't)>
  <cfqueryparam cfsqltype="cf_sql_varchar" value "#FORM.mailing_list#" />
<cfelse>
  0
</cfif>

Answer 2

Like this:

SET mailing_list = <CFIF IsDefined("FORM.mailing_list")>
    <cfqueryparam value="#FORM.mailing_list#" cfsqltype="cf_sql_integer" />
<CFELSE>
    0
</CFIF>

On recent CFML engines, you can use the ternary conditional operator:

SET mailing_list = <cfqueryparam value="#IsDefined("FORM.mailing_list") ? FORM.mailing_list : 0#" cfsqltype="cf_sql_integer" />

(Though that is arguably less readable here.)

Best way is most likely to param it above your query and avoid any if altogether...

<cfparam name="Form.mailing_list" default="0" />

...

SET mailing_list = <cfqueryparam value="#FORM.mailing_list#" cfsqltype="cf_sql_integer" />

Answer 3

I generally use IIF for short IF statements:

SET mailing_list = <cfqueryparam value="#iif(IsDefined("form.mailing_list"), form.mailing_list, 0)#" cfsqltype="cf_sql_integer" />

Otherwise I prefer the "long and clean" way:

<CFIF IsDefined("FORM.mailing_list")>
   SET mailing_list = <cfqueryparam value="#FORM.mailing_list#" cfsqltype="cf_sql_integer" />
<CFELSE>
   SET mailing_list = <cfqueryparam value="0" cfsqltype="cf_sql_integer" />
</CFIF>