I have a variable <cfset takeFour = 0 >. I then have a loop that I want to run 4 times.
<cfloop query="getVids" condition="takeFour LTE 4">
<cfset takeFour= takeFour + 1/>...
The CF debugger says that there is a attribute validation error for this tag, however this syntax should be correct. Any ideas?
When using cfloop to loop over a query, the acceptable attributes are, query, startRow, and endRow. Condition is not used when query is, which is why the complier is giving you an attribute validation error.
http://livedocs.adobe.com/coldfusion/8/htmldocs/help.html?content=Tags_j-l_10.html
You can't use the condition attribute on a cfloop with a query attribute, you can, however, break out of a loop when your condition is met. You could do this:
<cfloop query="getVids">
<cfset takeFour = takeFour + 1 />
<cfif takeFour GT 4>
<cfbreak />
</cfif>
</cfloop>
Of course, if you just want to loop over the first four rows, you can do this:
<cfloop query="getVids" startrow="1" endrow="4">
</cfloop>
Related
I' am finding it difficult to understand this. How can I limit the results to 50 only. Let say if in the directory I have 1000 files, how can I limit it so that only 50 files are looped over.
<cfdirectory action="list" directory="#ExpandPath('/downloaded/')#" name="listRoot" filter="*.xml" recurse="false" sort="datelastmodified asc">
<cfoutput>
<cfloop query="listRoot" from="1" to="50" index="i">
....
</cfloop>
</cfoutput>
When I run the above code I get the following error message
Attribute validation error for tag CFLOOP.
If you review the complete error message, it contains the answer (emphasis mine):
It has an invalid attribute combination: from,index,query,to. Possible combinations are:
Required attributes: 'query'. Optional attributes: 'endrow,startrow'.
...
Required attributes: 'from,index,to'. Optional attributes: 'step'.
The code is attempting to mix two different types of loops: query loop and from/to loop. That is not a valid combination. You can either use a query loop OR a from/to loop, but not both.
Having said that, since the goal is to display the output, there is really no need for the cfloop. Just use cfoutput with the "startRow" and "maxRows" attributes:
<cfoutput query="listRoot" startRow="1" maxRows="50">
#name#<br>
</cfoutput>
As mentioned in the other answer, recent versions of CF also support for ...in loops:
<cfscript>
for (row in listRoot) {
writeOutput("<br>Debug: name value = "& row.name );
}
</cfscript>
You can access specific rows in a query with:
query[columnName][rowIndex]
In order to do a from to loop instead of an each loop, go:
<cfoutput>
<cfloop from="1" to="50" index="i">
#listRoot["name"][i]#<br>
</cfloop>
</cfoutput>
I am getting an error after upgrade from coldfusionOX to coldfusion 10.
Error Occurred While Processing Request Complex object types cannot be
converted to simple values.
The expression has requested a variable or an intermediate expression
result as a simple value. However, the result cannot be converted to a
simple value. Simple values are strings, numbers, boolean values, and
date/time values. Queries, arrays, and COM objects are examples of
complex values. The most likely cause of the error is that you tried
to use a complex value as a simple one. For example, you tried to use
a query variable in a cfif tag.
It occurs at line " cfloop index="local.thisRight" list="#rights#" ". It seems like ColdFusion does not like the "rights" here.
Anyone can give me some help? Thanks so much.
<cfif local.profile.rights.profile.self is not "">
<cfquery name="local.getAffiliations" datasource="#Request.readerDSN#">
SELECT tblPersonsToAffiliations.affiliationID, tblPersonsToAffiliations.rights, tblAffiliations.affiliationType, tblPersonsToAffiliations.relationshipType
FROM tblPersonsToAffiliations INNER JOIN tblAffiliations
ON tblPersonsToAffiliations.affiliationID = tblAffiliations.affiliationID
WHERE tblPersonsToAffiliations.personID IN (#local.profile.rights.profile.self#)
AND (tblPersonsToAffiliations.archived IS NULL
OR tblPersonsToAffiliations.archived = '')
</cfquery>
<cfif local.getAffiliations.recordCount is not 0>
<cfloop query="local.getAffiliations">
<cfif local.getAffiliations.relationshipType is "interested">
<cfset local.thisRelationshipType = "provisionalMember">
<cfif IsDefined("local.profile.rights.#affiliationType#.#local.thisRelationshipType#")>
<cfset local.profile.rights[affiliationType][local.thisRelationshipType] = ListAppend(local.profile.rights[affiliationType][local.thisRelationshipType], affiliationID)>
<cfelse>
<cfset local.profile.rights[affiliationType][thisRelationshipType] = affiliationID>
</cfif>
<cfelse>
<cfset local.thisRelationshipType = "fullMember">
<cfif IsDefined("local.profile.rights.#affiliationType#.#local.thisRelationshipType#")>
<cfset local.profile.rights[affiliationType][local.thisRelationshipType] = ListAppend(local.profile.rights[affiliationType][local.thisRelationshipType], affiliationID)>
<cfelse>
<cfset local.profile.rights[affiliationType][local.thisRelationshipType] = affiliationID>
</cfif>
<cfif isNull(rights)>
<cfelse>
<cfloop index="local.thisRight" list="#rights#" >
<cfif IsDefined("local.profile.rights.#affiliationType#.#local.thisRight#")>
<cfset local.profile.rights[affiliationType][local.thisRight] = ListAppend(local.profile.rights[affiliationType][local.thisRight], affiliationID)>
<cfelse>
<cfset local.profile.rights[affiliationType][local.thisRight] = affiliationID>
</cfif>
</cfloop>
</cfif>
</cfif>
</cfloop>
</cfif>
</cfif>
A bit earlier in your code you do this:
<cfif local.getAffiliations.relationshipType is "interested">
I think you need the same query name prefix in front of "rights" that is used when evaluating "relationshipType".
Try this:
#local.getAffiliations.rights#
HTH!
I am betting it is failing on this line:
<cfloop index="local.thisRight" list="rights" >
You are attempting to use the string "rights" as a list. My first reaction would be that you need to make that:
<cfloop index="local.thisRight" list="#rights#" >
I am creating a INSERT Starement for my table. Till now all going good and i have been able to create the Insert Statement. Only Issue Left is: It shows a trailing comma after the end of every single record. Can you guys have a look around what mess I am doing here
<cfset listcount = getQueryColumns(insertData)>
<cfset counter = 1>
<cfloop query="insertData">
<cfoutput>
INSERT INTO `mytable` (#listcount#)
VALUES(
<cfloop index="col" list="#listcount#">'#insertData[col][currentRow]#'
<cfif counter LT insertData.recordcount>,</cfif>
</cfloop>);<br><br>
</cfoutput>
<cfset counter++>
</cfloop>
Your error is due to the fact that you are incrementing your counter in the outer loop instead of the inner loop.
I think I've got it. I believe this is what you need:
<cfset listcount = getQueryColumns(insertData)>
<cfloop query="insertData">
<cfset counter = 1>
<cfoutput>
INSERT INTO `mytable` (#listcount#)
VALUES(
<cfloop index="col" list="#listcount#">'#insertData[col][currentRow]#'
<cfif counter LT listcount>,</cfif>
<cfset counter++>
</cfloop>);<br><br>
</cfoutput>
</cfloop>
What I changed is:
As Dan Bracuk pointed out, I moved <cfset counter++> inside the inner loop. I also moved <cfset counter = 1> inside the outer loop, as it will need to be reinitialized through successive INSERT statements.
I changed <cfif counter LT insertData.recordcount> to <cfif counter LT listcount>, as you don't want to iterate over the recordcount (this is why your commas stopped appearing after Priority, which was the 8th field). Instead, you want to iterate over the number of columns.
EDIT: See my more recent answer. I'm leaving this one in place because the comments were useful in the diagnosis.
I think Dan Bracuk is correct about your counter increment. But you might be able to simplify your code and avoid the <cfif > statement entirely if you you use the list attribute in <cfqueryparam >. For example:
<cfqueryparam value="#NAME_OF_LIST#" list="yes" >
By default this will put a comma between your list values before sending them to the database.
Check out the other attributes it takes at http://www.cfquickdocs.com/cf8/#cfqueryparam.
I have a variable named #cfData# which contains an array of structures. As it's clear from the image, for 1st structure array there are 6 keys and for 2nd, only two keys,viz date and open.
If I run a common loop, to go through each and every key, I will get an error at second array element. So the following only works when all the keys are present in the structure:
<cfset blockedtotal = 0 />
<cfset bouncetotal = 0 />
<cfset blocked = 0/>
<cfset datetotal = 0 />
<cfloop array = #cfData# index = "i">
<cfset blockedtotal += i.blocked />
<cfset bouncetotal += i.bounce />
</cfloop>
After reading online, I got an idea of using StructKeyExists where I think I can proceed in the following way:
<cfif structKeyExists(cfData,"bounce")>
<cfoutput>Bounce:#cfData.bounce#"/></cfoutput>
<cfelse>
<cfoutput> Bounce : [none]<br/></cfoutput>
</cfif>
But I am wondering, where exactly should I insert the above code inside the cfloop? Please advise if my approach is wrong.
Update:
Thanks guys. I got it running by using the following code based on the answers and it's running fine:
<cfloop array="#cfData#" index="i">
<cfif structKeyExists(i, "date")>
<cfset counter++>
<cfoutput>#counter#</cfoutput> Date is: <cfoutput> #i.date#</cfoutput> <br/>
</cfif>
</cfloop>
you don't need a "common loop". You can loop through each struct with
<cfloop array="#cfData#" index="i">
<cfloop collection="#i#" item="key">
struct with key '#key#' has data: #i[key]#
</cfloop>
</cfloop>
Of, if you need to decide if the struct has certain key, do something:
<cfloop array="#cfData#" index="i">
<cfif structKeyExists(i, "someKey")>
<cfset counter++>
</cfif>
</cfloop>
I am trying to check to see if data exist in my form If data does not exist I want to assign it to O. How can I do this.
<cfif not isDefined("FORM.Age")>
cfset FORM.Age = "0"
<cfif>
Generally the best practice is considered to be to avoid isDefined. This is because isDefined will search all scopes until it finds a matching variable. So it's more efficient to use structKeyExists, eg:
<cfif NOT structKeyExists(form, "age")>
<cfset form.age = 0>
</cfif>
Also, another way to achieve this is to use cfparam, and specify 0 as the default:
<cfparam name="form.age" default="0">
You're almost there:
<cfif not isDefined("FORM.Age")>
<cfset Form.Age = 0>
</cfif>
Technically what you have is fine once you enclose the cfset in tags < and >. Assuming that omission is just a typo, could it be you are trying to use it with a text field?
Text fields always exist on submission. The value may be an empty string, but the field itself still exists, so IsDefined will always return true. If that is the case, you need to examine the field length or value instead. Then do something if it is empty according to your criteria. For example:
<!--- value is an empty string --->
<cfif NOT len(FORM.age)>
do something
</cfif>
... OR
<!--- value is an empty string or white space only --->
<cfif NOT len(trim(FORM.age))>
do something
</cfif>
... OR
<!--- convert non-numeric values to zero (0) --->
<cfset FORM.Age = val(FORM.Age)>
There are actually two things you want to to ensure. First, make sure this page was arrived at by submitting the proper form. Next, ensure you have a numeric value for the form.age variable. Here is an example of how you might want to code this:
<cfif StructKeyExists(form, "age") and cgi.http_referrer is what it should be>
<cfif IsNumeric(form.age) and form.age gt 0>
<cfset AgeSubmitted = int(form.age)>
<cfelse>
<cfset AgeSubmitted = 0>
</cfif>
...more code to process form
<cfelse>
...code for when page was not arrived at properly
</cfif>