Solved

Coldfusion nested loops question

Posted on 2012-04-06
4
310 Views
Last Modified: 2012-04-08
Hi,

I have a CF9 page where I have 2 loops - an outer loop that loops over form variables and an inner query loop that checks to see if there is match in a form variable from the outer loop in the inner query loop. If there is a match, then I need to populate a structure with a key/value pair - a form variable value from the outer loop is key and the query's resultset value is the value.

I've tried to do this but it's not giving me the desired result. Here is the code that I have:

<cfset teamStruct = structnew() />
<cfloop index="loopCount" from="1" to="#val(form.schoolcount)#">
        <cfset variables.schoolname = form["schoolname_#LoopCount#"]>
        <cfset variables.teamname = form["sel_teamname_#LoopCount#"]>
        <!---begin check for teamnames--->
             <cfloop query="GetTeams">
                   <cfif GetTeams.team_name is variables.teamname>
                              <!---this is the struct that is not being updated properly--->
                    <cfset teamStruct[variables.schoolname] = GetTeams.team_name />
                </cfif>
             </cfloop>
</cfloop>
0
Comment
Question by:roger_v
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
4 Comments
 
LVL 29

Expert Comment

by:Pravin Asar
ID: 37819479
Hope this clarifies how the array of structures works.
Here is complete example. You may also notice use of QueryNew() feature of CF9



<cfform name="f1">
<br/><cfinput type="hidden" name="schoolcount" value="3"/>
<br/><cfinput type="text" name="schoolname_1" value="school_1"/>
<cfinput type="text" name="sel_teamname_1" value="team_1"/>
<br/><cfinput type="text" name="schoolname_2" value="school_2"/>
<cfinput type="text" name="sel_teamname_2" value="team_2"/>
<br/><cfinput type="text" name="schoolname_3" value="school_3"/>
<cfinput type="text" name="sel_teamname_3" value="team_3"/>
<br/><cfinput type="submit" name="submit" value="Submit">
</cfform>
<cfexit>
</cfif>


<cfset GetTeams=QueryNew("team_id,team_name","Integer,VarChar")>
<cfloop from="1" to="5" index="tx">
<cfset tt=QueryAddRow(GetTeams)/>
<cfset tt=QuerySetCell(GetTeams,"team_id",tx)>
<cfset tt=QuerySetCell(GetTeams,"team_name","team_"&tx)>
</cfloop>

<cfset teamArray=ArrayNew(1)>
<cfset teamCnt=1>
<cfloop index="loopCount" from="1" to="#val(form.schoolcount)#">
      <cfset variables.schoolname = form["schoolname_#LoopCount#"]>
    <cfset variables.teamname = form["sel_teamname_#LoopCount#"]>
      <cfdump var="#variables.schoolname#"/>
      <cfdump var="#variables.teamname#"/>
    <!---begin check for teamnames--->
         <cfloop query="GetTeams">
          <cfif CompareNoCase(trim(GetTeams.team_name[GetTeams.currentrow]),trim(variables.teamname)) eq 0>
            <cfset tt=StructInsert(teamstruct,"schoolname",#GetTeams.team_name[GetTeams.currentrow]#)/>
                  <cfset teamArray[teamCnt] = teamStruct>
                  <cfset teamCnt=teamCnt+1>
         </cfif>
      </cfloop>
</cfloop>

<!--- Dump the teamArray --->
<cfdump var="#teamArray#"/>
0
 
LVL 29

Expert Comment

by:Pravin Asar
ID: 37819515
Use this one. I cleaned up few things

<cfif not isdefined("form.submit")>
<cfform name="f1">
<br/><cfinput type="hidden" name="schoolcount" value="3"/>
<br/><cfinput type="text" name="schoolname_1" value="school_1"/>
<cfinput type="text" name="sel_teamname_1" value="team_1"/>
<br/><cfinput type="text" name="schoolname_2" value="school_2"/>
<cfinput type="text" name="sel_teamname_2" value="team_2"/>
<br/><cfinput type="text" name="schoolname_3" value="school_3"/>
<cfinput type="text" name="sel_teamname_3" value="team_3"/>
<br/><cfinput type="submit" name="submit" value="Submit">
</cfform>
<cfexit>
</cfif>


<cfset GetTeams=QueryNew("team_id,team_name","Integer,VarChar")>
<cfloop from="1" to="5" index="tx">
<cfset tt=QueryAddRow(GetTeams)/>
<cfset tt=QuerySetCell(GetTeams,"team_id",tx)>
<cfset tt=QuerySetCell(GetTeams,"team_name","team_"&tx)>
</cfloop>

<cfset teamArray=ArrayNew(1)>
<cfset teamCnt=1>
<cfloop index="loopCount" from="1" to="#val(form.schoolcount)#">
      <cfset variables.schoolname = form["schoolname_#LoopCount#"]>
    <cfset variables.teamname = form["sel_teamname_#LoopCount#"]>
      <!---<cfdump var="#variables.schoolname#"/>
      <cfdump var="#variables.teamname#"/>--->
    <!---begin check for teamnames--->
         <cfloop query="GetTeams">
          <cfif CompareNoCase(trim(GetTeams.team_name[GetTeams.currentrow]),trim(variables.teamname)) eq 0>
                  <cfset teamStruct = structnew() />
            <!---this is the struct that is not being updated properly--->
            <cfset tt=StructInsert(teamstruct,"schoolname",#GetTeams.team_name[GetTeams.currentrow]#)/>
                  <cfset teamArray[teamCnt] = teamStruct>
                  <cfset teamCnt=teamCnt+1>
         </cfif>
      </cfloop>
</cfloop>

<!--- Dump the teamArray --->
<cfdump var="#teamArray#"/>
0
 
LVL 1

Author Comment

by:roger_v
ID: 37819779
@pravinasar:

Instead of a struct you used an array. Why?

Also, I'm more familiar/comfortable with the whole key/value concept of structs. Is it possible to use struct instead of array?
0
 
LVL 29

Accepted Solution

by:
Pravin Asar earned 500 total points
ID: 37820288
What I am using is array of structures, as at the end of loop we have many elements.

Please read the article at sitepoint.

http://www.sitepoint.com/coldfusion-ii-structs/
0

Featured Post

Free Tool: IP Lookup

Get more info about an IP address or domain name, such as organization, abuse contacts and geolocation.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
cfchart display 12 108
Sending Text Messages 1 63
Coldfusion subreport - passing parameters 2 87
ColdFusion 9 CF Administrator and Request Filtering 3 41
Hi, I will be creating today a basic tutorial on how we can create a Mail Custom Function and use it where ever we want. The main advantage about creating a custom function is that we can accommodate a range of arguments to pass to the Function and …
Hi, Even though I have created this Tutorial on My personal Blog, Some people might not able to find my website, So here i am posting it again Today, from the topic it is very clear that i will be showing you here the very basic usage of how we …
In a recent question (https://www.experts-exchange.com/questions/29004105/Run-AutoHotkey-script-directly-from-Notepad.html) here at Experts Exchange, a member asked how to run an AutoHotkey script (.AHK) directly from Notepad++ (aka NPP). This video…

726 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question