Error invoking cfc from url variable

Question

I am using a url with a variable tacked on it. When I call a file with to create a cfgrid the cfc it uses gives an error. It tells me the variable is undefined. This is a problem since I need to use it in the sql to create the grid. Seems like this is not the right way to get the variable to the sql statement but I dont know how else to do it since I have to use a url to invoke the grid. Thanks in advance for your help.

Answer 1

this is link to editable grid
<a href="participantgrid.cfm?course_id=#getresults.procourse_id#">#procourse_course#</a>
<!---participantgrid.cfm --- below--->
<cfform>
<cfinput name="course_ID" value="#url.course_id#" type="hidden"> 
    <cfgrid name="protrainparticipants"
            format="html"
            pagesize="10"
            striperows="yes"
            selectmode="edit"
            delete="yes"
            bind="cfc:participantcomp.getparticipants({cfgridpage},
                                        {cfgridpagesize},
                                        {cfgridsortcolumn},
                                        {cfgridsortdirection}, {course_id})"
            onchange="cfc:participantcomp.editparticipant({cfgridaction},
                                            {cfgridrow},
                                            {cfgridchanged})">
        <CFGRIDCOLUMN NAME="proparticipant_course_id"
            WIDTH=2
            DISPLAY="no">
        <CFGRIDCOLUMN NAME="proparticipant_id"
            HEADER="Paricipant ID"
            WIDTH=10
            ITALIC="NO"
            HEADERALIGN="center"
            HEADERITALIC="NO"
            HEADERBOLD="YES"
            DISPLAY="no">
        <CFGRIDCOLUMN NAME="proparticipant_firstname"
            HEADER="First Name"
            WIDTH=120
            ITALIC="NO"
            HEADERALIGN="center"
            HEADERITALIC="NO"
            HEADERBOLD="YES"
            DISPLAY="YES"
            SELECT="YES">
        <CFGRIDCOLUMN NAME="proparticipant_lastname"
            HEADER="Last Name"
            WIDTH=120
            ITALIC="No"
            HEADERALIGN="center"
            HEADERITALIC="No"
            HEADERBOLD="Yes"
            BOLD="Yes"
            DISPLAY="Yes">
            <CFGRIDCOLUMN NAME="proparticipant_p_country"
            HEADER="Country"
            WIDTH=80
            ITALIC="No"
            HEADERALIGN="center"
            HEADERITALIC="No"
            HEADERBOLD="Yes"
            BOLD="Yes"
            DISPLAY="Yes">
            <CFGRIDCOLUMN NAME="proparticipant_email"
            HEADER="Email"
            WIDTH=160
            ITALIC="No"
            HEADERALIGN="center"
            HEADERITALIC="No"
            HEADERBOLD="Yes"
            BOLD="Yes"
            DISPLAY="Yes">
            <CFGRIDCOLUMN NAME="proparticipant_phone"
            HEADER="Phone"
            WIDTH=100
            ITALIC="No"
            HEADERALIGN="center"
            HEADERITALIC="No"
            HEADERBOLD="Yes"
            BOLD="Yes"
            DISPLAY="Yes">
            <CFGRIDCOLUMN NAME="proparticipant_fax"
            HEADER="Fax"
            WIDTH=100
            ITALIC="No"
            HEADERALIGN="center"
            HEADERITALIC="No"
            HEADERBOLD="Yes"
            BOLD="Yes"
            DISPLAY="Yes">
            <CFGRIDCOLUMN NAME="proparticipant_projid"
            HEADER="Project ID"
            WIDTH=80
            ITALIC="No"
            HEADERALIGN="center"
            HEADERITALIC="No"
            HEADERBOLD="Yes"
            BOLD="Yes"
            DISPLAY="Yes">
            <CFGRIDCOLUMN NAME="proparticipant_agency"
            HEADER="Agency"
            WIDTH=80
            ITALIC="No"
            HEADERALIGN="center"
            HEADERITALIC="No"
            HEADERBOLD="Yes"
            BOLD="Yes"
            DISPLAY="Yes">
    </cfgrid>
</cfform>
<!---- participantcomp.cfc--below --->
<cfcomponent output="false">
<cfset THIS.dsn="protraining">
<!--- Get participants --->
<cffunction name="getparticipants" access="remote" returntype="struct">
  <cfargument name="page" type="numeric" required="yes">
  <cfargument name="pageSize" type="numeric" required="yes">
  <cfargument name="gridsortcolumn" type="string" required="no" default="">
  <cfargument name="gridsortdir" type="string" required="no" default="">
  <cfargument name="course_id" type="numeric" required="yes" default="#course_id#">
  <!--- Local variables --->
  <!--- Get data --->
  <CFQUERY NAME="Chkcourse2" DATASOURCE=#THIS.dsn#>
            SELECT procourse_id, procourse_course
            FROM    afrreg38.tblProcourse
            WHERE   procourse_id = #arguments.course_id#
            </CFQUERY>
  <cfset current_course_id = #chkcourse2.course_id#>
  <cfquery name="qrygetparticipants" datasource="#application.dsn#">
  select   pp.proparticipant_id, pp.proparticipant_course_id, pp.proparticipant_firstname, pp.proparticipant_lastname, pc.procourse_course, pp.proparticipant_p_country, pp.proparticipant_email, pp.proparticipant_phone, pp.proparticipant_fax, pp.proparticipant_projid, pp.proparticipant_agency, pc.procourse_id
                          FROM    afrreg38.tblProparticipant_3 pp, afrreg38.tblProcourse pc, afrreg38.tblproparticipant_course_test_2 pct
                          WHERE  pp.proparticipant_id = pct.proparticipant_participant_id
                          and pp.proparticipant_course_id = pc.procourse_id
                          and pc.procourse_id = #variables.current_course_id#
                          <cfif ARGUMENTS.gridsortcolumn NEQ ""
                          and ARGUMENTS.gridsortdir NEQ "">
                          ORDER BY #ARGUMENTS.gridsortcolumn# #ARGUMENTS.gridsortdir#
                          </cfif>
              </cfquery>
  <!--- And return it as a grid structure --->
  <cfreturn QueryConvertForGrid(qrygetparticipants,
                            ARGUMENTS.page,
                            ARGUMENTS.pageSize)>
</cffunction>
<!--- Edit an artist --->
<cffunction name="editparticipant" access="remote">
  <cfargument name="gridaction" type="string" required="yes">
  <cfargument name="gridrow" type="struct" required="yes">
  <cfargument name="gridchanged" type="struct" required="yes">
  <!--- Local variables --->
  <cfset var colname="">
  <cfset var value="">
  <!--- Process gridaction --->
  <cfswitch expression="#ARGUMENTS.gridaction#">
    <!--- Process updates --->
    <cfcase value="U">
    <!--- Get column name and value --->
    <cfset colname=StructKeyList(ARGUMENTS.gridchanged)>
    <cfset value=ARGUMENTS.gridchanged[colname]>
    <!--- Perform actual update --->
    <CFQUERY name="updateparticipant_data" datasource="#THIS.dsn#">
                 UPDATE afrreg38.tblProparticipant_3
                 SET #colname# = '#value#'
                 WHERE proparticipant_id = #ARGUMENTS.gridrow.proparticipant_id#
                </CFQUERY>
    <!---  <cfquery datasource="#THIS.dsn#">
                 UDPATE afrreg38.tblproparticipant_course_test_2
                SET #colname# = '#value#'
                </cfquery> --->
    </cfcase>
    <!--- Process deletes --->
    <cfcase value="D">
    <!--- Perform actual delete --->
    <cfquery datasource="#THIS.dsn#">
                DELETE FROM afrreg38.tblProparticipant_3
                WHERE proparticipant_id = #ARGUMENTS.gridrow.proparticipant_id#
                </cfquery>
    </cfcase>
  </cfswitch>
</cffunction>
</cfcomponent>