RE: [CFCDev] MVC and GetPageContext.Forward()

Tue, 14 Jun 2005 13:01:14 -0700

Been lurking for quite some time, but now I’m finally on the board.

 

Peter, thanks for the example – that helped clarify this thread for me. However, I need to better understand why getPageContext would be used here. What is the advantage of using getPageContext over simply cfincluding the dsp_form.cfm?

 

Thanks

 

Anthony

 

 

From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Dawson, Michael
Sent: Tuesday, June 14, 2005 12:13 PM
To: [email protected]
Subject: RE: [CFCDev] MVC and GetPageContext.Forward()

 

This looks great!  Thanks for the example.

 

M!ke

 

From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Peter H
Sent: Tuesday, June 14, 2005 1:26 PM
To: [email protected]
Subject: RE: [CFCDev] MVC and GetPageContext.Forward()

Sorry for the naff (and I do mean naff example) but I'm heading out for dinner in about 10 mins so had to dash this off. It's not elegant and would work a lot better is you passed a validation object back instead and just check for isValid etc

Here's the input form:

<cfscript>
 if(StructKeyExists(request, 'Form')) Form = Request.Form; 
</cfscript>

<cfparam name="Form.txtFirstName" default="" />
<cfparam name="Form.txtLastName" default="" />
<cfparam name="Form.txtAge" default="" />
<cfparam name="Form.Errors" default="StructNew()" />

<html>
<head>
<title>Person Details</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>

<body>
<form action="" method="post" name="form1" target="_self">
  <table width="75%" border="1">
    <tr>
      <td>First Name:</td>
      <td><input name="txtFirstName" type="text" id="txtFirstName" value="<cfoutput>#Form.txtFirstName#</cfoutput>" size="40" maxlength="50"></td>
   <td>
     <cfif StructCount(Form.Errors) gt 0 and StructKeyExists(Form.Errors, 'txtFirstName')><cfoutput>#Form.Errors['txtFirstName']#</cfoutput></cfif>
   </td>
    </tr>
    <tr>
      <td>Last Name:</td>
      <td><input name="txtLastName" type="text" id="txtLastName" value="<cfoutput>#Form.txtLastName#</cfoutput>" size="40" maxlength="50"></td>
   <td>
     <cfif StructCount(Form.Errors) gt 0 and StructKeyExists(Form.Errors, 'txtLastName')><cfoutput>#Form.Errors['txtLastName']#</cfoutput></cfif>
   </td>
    </tr>
    <tr>
      <td>Age:</td>
      <td><input name="txtAge" type="text" id="txtAge" value="<cfoutput>#Form.txtAge#</cfoutput>" size="40" maxlength="50"></td>
   <td>
     <cfif StructCount(Form.Errors) gt 0 and StructKeyExists(Form.Errors, 'txtAge')><cfoutput>#Form.Errors['txtAge']#</cfoutput></cfif>
   </td>
    </tr> 
    <tr align="center">
      <td colspan="2"><input type="submit" name="Submit" value="Submit"></td>
    </tr>
  </table>
</form>

</body>
</html>

Here is the validation form:

<cfscript>
 Errors = StructNew();
 
 if(Len(Form.txtFirstName) lt 1)
  StructInsert(Errors, 'txtFirstName', 'You must enter your first name');

 if(Len(Form.txtLastName) lt 1)
  StructInsert(Errors, 'txtLastName', 'You must enter your last name');
  
 if(not isNumeric(Form.txtAge) or Form.txtAge lt 1 or Form.txtAge gt 100)
  StructInsert(Errors, 'txtAge', 'You must enter a valid number between 1 and 100');

 if(StructCount(Errors) gt 0)
  Form.Errors = Errors;
</cfscript>

<cfif StructKeyExists(Form, 'Errors') >
 <cfscript>
  Request.Form = Form;
  GetPageContext().Forward('dsp.form.cfm');
 </cfscript>
<cfelse>
 <cfoutput>Congratulation #Form.txtFirstName# #Form.txtLastName#, you look great for a #Form.txtAge# year old!</cfoutput>
</cfif>
   
     
Cheers, Pete (aka lad4bear)

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