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Pass form values in coldfusion

Hello experts.
I need help to decide wich method i should use to pass form values from two search pages (two search forms) to one result page and one detailpage.
To build this i have used Url variables.
On the result page i have two link to the searchpage1 Or 2 depending on a Url variable and using
<cfswitch and cfcase.
The first link is :New search
And the second  to Edit the search fields using the url variables:
I also handle the number of records with a form.
And the function sort by that works with url variables too.

I have also  alink to the detail page.
On the detail page are these two links for new search and edit search and a third one that goes to the result page(not back)

The question is how can i pass the search values from page to another page.
f.e if i choose 20 for number of records than i loose the search values in URl.If i add #CGI.Query_String# to URL i get more than once the value for the records.
And than from the result page to the detail and than back how can i pass the values back.
Do i have to use Form variables instead of Url.Do i have to use cookies or session?
Please help.
Here are part of the codes .
The first search page:
<cfform action="Results.cfm" method="get" name="SearchForm" id="SearchForm">
Price from
<cfselect name="S_Preisvon">
  <option value="" <cfif  url.S_Preisvon EQ "" > selected="selected"</cfif>>All</option>
   <cfoutput query="q_preisvon">
   <option value="#q_preisvon.PRB_Id#" <cfif  listfind(q_preisvon.PRB_Id,url.S_Preisvon) > selected="selected"</cfif>>#q_preisvon.PRB# &##8364;</option>
     </cfoutput>
</cfselect></br>
Price to                        
  <cfselect name="S_Preisbis">
     <option value="" <cfif  url.S_Preisbis EQ "" >selected="selected"</cfif>>All</option>
      <cfoutput query="q_preisbis">
       <option value="#q_preisbis.PRB_Id#" <cfif  listfind(q_preisbis.PRB_Id,url.S_Preisbis)> selected="selected"</cfif>>#q_preisbis.PRB# &##8364;</option>
      </cfoutput>
   </cfselect></br>
Results per page
  <cfselect class="selectleftbottom" name="nrecords">
                  <option value="5" <cfif Url.nrecords EQ 5 > selected="selected"</cfif>>5 </option>
                  <option value="10" <cfif Url.nrecords EQ 10> selected="selected"</cfif>>10 </option>
                  <option value="20" <cfif Url.nrecords EQ 20 > selected="selected"</cfif>>20 </option>
                  <option value="30" <cfif Url.nrecords EQ 30 > selected="selected"</cfif>>30 </option>
                  <option value="50" <cfif Url.nrecords EQ 50 > selected="selected"</cfif>>50 </option>
                  <option value="100" <cfif Url.nrecords EQ 100 > selected="selected"</cfif>>100 </option>
        </cfselect> 
</cfform>        
 
 
Result page:
<cffunction name="cleanOrderBy" returntype="string">
  <cfargument name="theValue" type="string">
  <cfargument name="defaultSort" type="string">
  <cfif REFindNoCase("[\w,]{1,50}\s+(asc|desc)\s*",theValue,1)>
    <cfset matches = REFindNoCase("[\w,]{1,50}\s+(asc|desc)\s*",theValue,1,"true")>
    <cfreturn Mid(theValue,matches.pos[1],matches.len[1])/>
  </cfif>
  <cfreturn defaultSort/>
</cffunction>
<cfset CurrentPage=GetFileFromPath(GetBaseTemplatePath())>
<cfparam name="PageNum_artikel" default="1">
<cfparam name="url.nrecords" default="10">
<cfparam name="url.tfm_orderby" default="Price">
<cfparam name="url.tfm_order" default="ASC">
<cfset sql_orderby = cleanOrderBy("#tfm_orderby# #tfm_order#","Price")>
<cfif true eq true>
<cfquery name="artikel" datasource="#request.dsn#">
SELECT SELECT  a.Art_ID,a.Mobile_Sub_ID,a.Name,a.Price,a.Datein
WHERE (0=0
<cfif isdefined("Url.S_Preisvon")>
   <cfif Url.S_Preisvon NEQ "">      
  AND a.Price >= <cfqueryparam value="#URL.S_Preisvon#" cfsqltype="cf_sql_numeric">
      </cfif>
    </cfif>            
<cfif isDefined ("Url.S_Preisbis")>
 <cfif Url.S_Preisbis NEQ "">
 AND  a.Price <= <cfqueryparam value="#URL.S_Preisbis#" cfsqltype="cf_sql_numeric">
       </cfif>
     </cfif>
  </cfquery>
    <cfset QueryString_artikel=Iif(CGI.QUERY_STRING NEQ "",DE("&"&CGI.QUERY_STRING),DE(""))>
</cfif>
<cfset MaxRows_artikel="#url.nrecords#">
<cfset StartRow_artikel=Min((PageNum_artikel-1)*MaxRows_artikel+1,Max(artikel.RecordCount,1))>
<cfset EndRow_artikel=Min(StartRow_artikel+MaxRows_artikel-1,artikel.RecordCount)>
<cfset TotalPages_artikel=Ceiling(artikel.RecordCount/MaxRows_artikel)>
<cfset QueryString_artikel=Iif(CGI.QUERY_STRING NEQ "",DE("&"&XMLFormat(CGI.QUERY_STRING)),DE(""))>
<cfset tempPos=ListContainsNoCase(QueryString_artikel,"PageNum_artikel=","&")>
<cfif tempPos NEQ 0>
  <cfset QueryString_artikel=ListDeleteAt(QueryString_artikel,tempPos,"&")>
</cfif>
 
 
<cfscript>
TFM_LimitLinksEndCount = 10;
TFM_startLink = Max(1,PageNum_artikel - int(TFM_LimitLinksEndCount/2));
TFM_temp = TFM_startLink + TFM_LimitLinksEndCount - 1;
TFM_endLink = min(TFM_temp, TotalPages_artikel);
If (TFM_endLink NEQ TFM_temp) {
  TFM_startLink = max(1,TFM_endLink - TFM_LimitLinksEndCount + 1);
}
</cfscript>
<cfscript>
//sort column headers for artikel
tfm_saveParams = "";
tfm_keepParams = "";
if(tfm_order EQ "ASC") {
	tfm_order = "DESC";
}else{
	tfm_order = "ASC";
}
if(ListLen(tfm_saveParams)GT 0) {
	tfm_params=ListToArray(tfm_saveParams,",");
	For (i=1; i LTE ArrayLen(tfm_params); i=i+1) {
  		if(isDefined(tfm_params[i])) {
      			tfm_temp = tfm_params[i];
			if(isDefined("form." & tfm_params[i])) tfm_temp = "form." & tfm_params[i];
      			tfm_keepParams = tfm_keepParams &  LCase(tfm_params[i]) & "=" & URLEncodedFormat(Evaluate(tfm_temp)) & "&";
		}
	}
}
tfm_orderbyURL = CGI.SCRIPT_NAME & "?" & tfm_keepParams & "tfm_order=" & tfm_order & "&tfm_orderby=";
</cfscript>
  
<!--- script for nrecords --->
<script language="JavaScript">
<!--
     function slappy() {
          document.changy.submit();
     }
//-->
</script> 
<!--- end --->
 
<!--- Body --->
<!--- the links --->
<a href=<cfswitch expression="#url.S_Mobile_Sub_ID#">
<cfcase value="1">
  "Search/Search.cfm?Mobile_Sub_ID=1"
  </cfcase>
  <cfcase value="2">
  "Search/Search.cfm?Mobile_Sub_ID=2"
  </cfcase>
</cfswitch>>New Search</a>
<a href=<cfswitch expression="#url.S_Mobile_Sub_ID#">
  <cfcase value="1">
  "Search/Search.cfm?Mobile_Sub_ID=1&<cfoutput>#CGI.QUERY_STRING#</cfoutput>"
  </cfcase>
  <cfcase value="2">
  "Search/Search.cfm?Mobile_Sub_ID=2&<cfoutput>#CGI.QUERY_STRING#</cfoutput>"
  </cfcase></cfswitch>>Edit  Search criteria</a>
 
 
<!--- the form for nrecords--->
<form action="Results.cfm?lite=Results<cfif (isdefined("url.pagenumber"))>&pagenumber=#url.pagenumber#</cfif>&S_Mobile_Sub_Id=<cfoutput>#artikel.Mobile_Sub_id#</cfoutput>" method="get" name="changy" id="changy">
      <div align="right">Results per page :
        <select  id="nrecords"name="nrecords" onChange="slappy();" class="Resultnumber">
            <cfloop index="kk" list="5,10,20,30,50,100">
              <option value="<cfoutput>#kk#</cfoutput>" 
	  <cfif kk is url.nrecords>selected</cfif> > <cfoutput>#kk#</cfoutput> </option>
            </cfloop>
          </select>
      </div>
    </form>
    <!--- end --->
	
<!--- the sort by code --->
<a href="<cfoutput>#tfm_orderbyURL#</cfoutput>Art_ID&nrecords=<cfoutput>#nrecords#</cfoutput>">Day Insert</a>                  
 <a href="<cfoutput>#tfm_orderbyURL#</cfoutput>Price&nrecords=<cfoutput>#nrecords#</cfoutput>">Price</a>   
 
 
 <!--- in the query output is the link to the detailpage--->
 <a href="Detail.cfm?Art_ID=#URLEncodedFormat(artikel.Art_ID)#" title="Detailansicht" target="_blank">Detail</a>

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ASKER CERTIFIED SOLUTION
Avatar of azadisaryev
azadisaryev
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ASKER

Hi azadi.
Could this articel help too?
http://tutorial55.easycfm.com/
SOLUTION
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Avatar of Panos

ASKER

Hi azadi.
Thank you fo your help and the detailed description and i think i'm very near  to solve my problem.
I tried the A) but when i click on the link (on the same page) i get the error Element FIELDNAMES is undefined in FORM and in the url has been added only one form field and his value.
And as i want first of all to submit to the page that i'm allready (result page)please help with the script that i need in the B) case.
Avatar of Panos

ASKER

Hi again.
I did add :
<cfparam name="form.fieldnames" default="">
<cfparam name="querystring" default="">
Now the next error i have is:
The 2 parameter of the Left function, which is now -1, must be a positive integer
both A) and B) will only work AFTER the form has been submitted.

it looks like you are trying to use these methods on the same page as your form, not on the form;s action page...

Azadi
Avatar of Panos

ASKER

Because i m on the resut page and want to set the numbers of the records or the order by function i use this on the same page
Avatar of Panos

ASKER

Hi azadi.
I tried this to another page , i have no error but the code passes only the last formfield and value
Avatar of Panos

ASKER

My form is on the searchpage.
action page is now in my example testfields.cfm and there is the link.
Here is the testfields.cfm with all the variations.
<cfparam name="form.fieldnames" default="">
<cfparam name="querystring" default="">

<cfloop index="thefield" list="#form.fieldnames#" >
    <cfset fields="#thefield# = #evaluate(thefield)#">
    <cfoutput>#fields#</cfoutput><br>
</cfloop>

<cfloop index="thefield" list="#form.fieldnames#">
    <cfset querystring = thefield & "=" & form[thefield] & "&">
</cfloop>
<cfset querystring = "?" & left(querystring, len(querystring)-1)>

<cfoutput><a href="testfields.cfm#querystring#">test</a></cfoutput>



B.
<form action="testfields.cfm">
<cfoutput>
<cfloop index="thefield" list="#form.fieldnames#">
<input type="hidden" name="#thefield#" value="#form[thefield]#" />

</cfloop>
</cfoutput><input name="" type="submit" />
</form>
Avatar of Panos

ASKER

Hi azadi.
Looking around in the code from sites with these functions i saw that they use forms with hidden fields and some have different action pages end not the same.
I will try to separate each function now and make new questions
Thank you for your help.
regards
Panos