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Using index [i] in cfloop

Posted on 2009-05-06
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Last Modified: 2013-12-24
Hello experts.
On this page:
http://www.experts-exchange.com/Software/Server_Software/Web_Servers/ColdFusion/Q_24380974.html
 i did ask for help to replace the number 1 i have with index [i] and use cfloop.
But because i did not get an answer i will try to separate the question in subquestions.
The getDBimagequery will be:
<cfset numImages = 8>
<cfloop index="i" from="1" to="#numImages#">
<cfquery name="getDBimage#i#" datasource="#request.dsn#">
SELECT img_Text
FROM dbo.All_Images
WHERE img_ID = <cfqueryparam value="#i#" cfsqltype="cf_sql_numeric">
AND Artimages_ID = <cfqueryparam value="#URL.Art_ID#" cfsqltype="cf_sql_numeric">
</cfquery>
</cfloop>
But for the query outputs :
<cffile action="delete" file="#thispath#/#getDBimage1.img_Text#">

The updatequery and serverfile#i#:
<CFSET "ServerFile#i#" = CFFILE.SERVERFILE>
             <cfquery name="updateimg_#i#" datasource="#request.dsn#">
             Update dbo.All_images
             SET img_text = '#ServerFile[#i#]#'
             WHERE Artimages_ID = <cfqueryparam value="350" cfsqltype="cf_sql_numeric">
             AND  img_ID = <cfqueryparam value="1" cfsqltype="cf_sql_numeric">
             </cfquery>
The insert query:
<cfquery name="imageupload" datasource="#request.dsn#">
            Insert into All_images (Artimages_ID,img_ID,img_text)
            values (#Url.art_id#, 1,'#ServerFile1#')
            </cfquery>

i need a help.


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Question by:Panos
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9 Comments
 
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Accepted Solution

by:
anandkp earned 500 total points
ID: 24312426
I am not sure what you are trying to do ... but i'll give it a try ... & see if it helps you ...

your existing code is fine (i think)

<cfset numImages = 8>
<cfloop index="i" from="1" to="#numImages#">
<cfquery name="getDBimage#i#" datasource="#request.dsn#">
SELECT img_Text
FROM dbo.All_Images
WHERE img_ID = <cfqueryparam value="#i#" cfsqltype="cf_sql_numeric">
AND Artimages_ID = <cfqueryparam value="#URL.Art_ID#" cfsqltype="cf_sql_numeric">
</cfquery>
</cfloop>

>> But for the query outputs :

i think u need to loop all over again ...
<cfloop index="i" from="1" to="#numImages#">
     <cffile action="delete" file="#thispath#/#Evaluate('getDBimage#1#.img_Text')#"> <!--- should this be file upload instead of file delete ? --->
     <CFSET "ServerFile#i#" = CFFILE.SERVERFILE>
</cfloop>

similarly ... u'll need to use evaluate again in the subsequent code ....

>> The updatequery
             <cfquery datasource="#request.dsn#">
             Update dbo.All_images
             SET img_text = '#Evaluate("ServerFile#i#")#'
             WHERE Artimages_ID = <cfqueryparam value="350" cfsqltype="cf_sql_numeric">
             AND  img_ID = <cfqueryparam value="1" cfsqltype="cf_sql_numeric">
             </cfquery>


>> The insert query:
<cfquery name="imageupload" datasource="#request.dsn#">
            Insert into All_images (Artimages_ID,img_ID,img_text)
            values (#Url.art_id#, 1,'#Evaluate("ServerFile#i#")#')
</cfquery>

>> i need a help

does this help ?
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LVL 2

Author Comment

by:Panos
ID: 24312482
Hi anandkp:
In the link i posted ihave the whole code.
In my page i wrote this code 8 times.replacing each time the number 1 with 2,3,......
so I'm asking how to use the cfloop.
I want (if it is correct) to start the loop before the cffile upload function and ending before :<cfif isdefined ("Deletimg_1")>

(I use first delete to delete the image that is allready in image folder.)

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LVL 17

Expert Comment

by:anandkp
ID: 24312561
yes, i made some changes to ur code to enable u to use cfloop ...
notice the use of Evaluate() in my reply above ... that should help ...
kindly check & let me know if it helps ...
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Author Comment

by:Panos
ID: 24312651
Ok
Here is the whole code.I have no errors but i can't upload any image
<cfparam name="Url.Art_ID" default="350">
<cfset numImages = 8>
<cfloop index="i" from="1" to="#numImages#">
<cfquery name="getDBimage#i#" datasource="#request.dsn#">
SELECT img_Text
FROM dbo.All_Images
WHERE img_ID = <cfqueryparam value="#i#" cfsqltype="cf_sql_numeric">
AND Artimages_ID = <cfqueryparam value="#URL.Art_ID#" cfsqltype="cf_sql_numeric">
</cfquery>
</cfloop>
 
<cfloop index="i" from="1" to="#numImages#">
<cfparam name="SERVERFILE#i#" default="">
</cfloop>
<cfset thumbWidth = 80>
   <cfset thumbHeight = 60>
 
   <cfset newWidth = 300>
   <cfset newHeight = 225>
   
   <cfset bigWidth = 640>
   <cfset bigHeight = 480>
   <!--- expandpath() gets the current
         drive and path of the file we are running --->
  <CFSET thispath = expandpath("./images")>       
<cfif isdefined ("uploadf#i#") AND CGI.REQUEST_METHOD IS "POST">
    <cfif structKeyExists(form,"foto"&#i#) and len(form.foto&#i#)>
                
  <!--- uploads a file to our website --->
      <cftry>
     <CFFILE action="upload" filefield="foto#i#" destination="#thispath#" nameconflict="MAKEUNIQUE" accept="image/gif, image/jpg, image/jpeg">
         <cfcatch type="any">
         <cfset   errors = errors & "Image #i# is not an image file!<br />">
         </cfcatch>
        </cftry>
      <!--- check the image size --->
    <cfif errors EQ "">
        <cfif cffile.Filesize GT 500 * 1024>
          <cffile  action="delete" file="#thispath#/#cffile.serverfile#">
          <cfset errors = errors & "Image #i# is bigger than alowed!<br />">
        <cfelse>
    
     <!--- check if there is allready img_1 then delete the file to replace --->
          <cfif  #Evaluate('getDBimage#1#.Recordcount')# NEQ 0>
         
           <cffile action="delete" file="#thispath#/#Evaluate('getDBimage#1#.img_Text')#">
           <cffile action="delete" file="#thispath#/thumbs/#Evaluate('getDBimage#1#.img_Text')#">
           <cffile action="delete" file="#thispath#/bigsize/#Evaluate('getDBimage#1#.img_Text')#">
          </cfif>
     <!--- end --->
     <!--- resize the file --->
             <cfimage name="uploadedImage"
             source="#thispath#/#cffile.serverFile#" >
             <cfimage action="resize"
             height="#newHeight#"
             width="#newWidth#"
             source="#uploadedImage#"
             destination="#thispath#/#cffile.serverFile#"
             overwrite="true"/> 
     
             <cfimage action="resize"
             height="#thumbHeight#"
             width="#thumbWidth#"
             source="#uploadedImage#"
             destination="#thispath#/thumbs/#cffile.serverFile#"
             overwrite="true"/>
    
             <cfimage action="resize"
             height="#bigHeight#"
             width="#bigWidth#"
             source="#uploadedImage#"
             destination="#thispath#/bigsize/#cffile.serverFile#"
             overwrite="true"/>
             
 
    <!--- end --->
          <CFSET "ServerFile#i#"  = CFFILE.SERVERFILE>
   <!--- If there is allready img1 in DB then replace it --->
          <cfif #Evaluate('getDBimage#1#.Recordcount')# NEQ 0>
             <cfquery name="updateimg_1" datasource="#request.dsn#">
             Update dbo.All_images
             SET img_text = '#Evaluate("ServerFile#i#")#'
             WHERE Artimages_ID = <cfqueryparam value="#URL.Art_ID#" cfsqltype="cf_sql_numeric"> 
             AND  img_ID = <cfqueryparam value="#i#" cfsqltype="cf_sql_numeric">
             </cfquery>
   <!--- end --->
         <cfelse>
   <!--- If there is isn't img1 in Db then insert ---> 
            <cfquery name="imageupload" datasource="#request.dsn#">
            Insert into All_images (Artimages_ID,img_ID,img_text)
            values (#Url.art_id#, #i#,'#Evaluate("ServerFile#i#")#')
            </cfquery>
<!--- end --->
        </cfif>
     </cfif>
  </cfif>
  </cfif>
  </cfif>

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Expert Comment

by:anandkp
ID: 24312763
do u have rights to upload on server ?
i mean if u do not use loop ... are u able to upload images properly ?
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LVL 2

Author Comment

by:Panos
ID: 24312775
Yes.
Without cfloop i have no problem.
Here is the form and the output query:

<cfloop index="i" from="1" to="#numImages#" >       
<cfquery name="getimage#i#" datasource="#request.dsn#">
SELECT img_Text
FROM dbo.All_Images
WHERE img_ID = <cfqueryparam value="#i#" cfsqltype="cf_sql_numeric"> 
AND Artimages_ID = <cfqueryparam value="#URL.Art_ID#" cfsqltype="cf_sql_numeric"> 
</cfquery>
</cfloop>
<cfloop index="i" from="1" to="#numImages#" > 
<cfif #Evaluate('getimage#i#.img_Text')# EQ "">
 <cfset 'image#i#' = 'images_1.jpg'>
 <cfelse>
 <cfset 'image#i#' = #Evaluate('getimage#i#.img_Text')#>
 </cfif>
 </cfloop>
 
<form action="#CGI.SCRIPT_NAME#" method="post" enctype="multipart/form-data" name="WADAUpdateForm1" id="WADAUpdateForm1">
<table width="500">
  <tr>
    <td><input name="imageField1" type="image" class="imageFieldinsert" id="imageField" src="images/thumbs/<cfoutput>#image1#</cfoutput>" width="80" height="60" /><br />
    <input name="foto1" class="textfieldfoto"  id="foto1"type="file"  /><br />
    <input name="uploadf1" type="submit"  id="uploadf1"   value="upload" width="60"  height="30" />
    <input name="Deletimg_1" type="submit"  id="Deletimg_1" value="Delete"  <cfif getimage1.img_Text EQ "">disabled="disabled" </cfif> /></td>
    <td><input name="imageField2" type="image" class="imageFieldinsert" id="imageField2" src="images/thumbs/<cfoutput>#image2#</cfoutput>" width="80" height="60" /><br />
    <input name="foto2" class="textfieldfoto"  id="foto2"type="file"  /><br />
    <input name="uploadf2" type="submit"  id="uploadf2"   value="upload" width="60"  height="30" />
    <input name="Deletimg_2" type="submit"  id="Deletimg_2" value="Delete"  <cfif getimage2.img_Text EQ "">disabled="disabled" </cfif> /></td>
  </tr>
  <tr>
    <td><input name="imageField3" type="image" class="imageFieldinsert" id="imageField" src="images/thumbs/<cfoutput>#image3#</cfoutput>" width="80" height="60" /><br />
    <input name="foto3" class="textfieldfoto"  id="foto3"type="file"  /><br />
    <input name="uploadf3" type="submit"  id="uploadf3"   value="upload" width="60"  height="30" />
    <input name="Deletimg_3" type="submit"  id="Deletimg_3" value="Delete"  <cfif getimage3.img_Text EQ "">disabled="disabled" </cfif> /></td>
    <td><input name="imageField4" type="image" class="imageFieldinsert" id="imageField4" src="images/thumbs/<cfoutput>#image4#</cfoutput>" width="80" height="60" /><br />
    <input name="foto4" class="textfieldfoto"  id="foto4"type="file"  /><br />
    <input name="uploadf4" type="submit"  id="uploadf4"   value="upload" width="60"  height="30" />
    <input name="Deletimg_4" type="submit"  id="Deletimg_4" value="Delete"  <cfif getimage4.img_Text EQ "">disabled="disabled" </cfif> /></td>
  </tr>
</table>
</form>

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Author Comment

by:Panos
ID: 24313137
Hi again anandkp:
Your code is working
I missed the cfloop before the <cfif isdefined ("uploadf#i#") ......and the </cfllop> end tag
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Author Closing Comment

by:Panos
ID: 31578363
Thank you again for your help.
You can post the solution to this question too to get the points:
http://www.experts-exchange.com/Software/Server_Software/Web_Servers/ColdFusion/Q_24380974.html
regards
Panos
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LVL 17

Expert Comment

by:anandkp
ID: 24347002
Glad I could help ... :)
Cheers :)
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