[Zope] NEWBIES: Creating users with a regular form and a Python script

Rob Foster rob@thefosters.com
Tue, 30 Oct 2001 15:55:42 -0700

This is (hopefully) the last email for this issue: Re: [Zope] How can I 
check a user_acl folder to see if a user already exists?

First of all, thanks to everyone who responded.
Second of all, here's the finished form and Python script for any other 
Newbies who need this in the future...
Make sure that you have an acl_users folder in the same folder with the 
following items...


Here's the HTML form that the user submits:

<form action="checkUsers">
Username: <input type="text" size="25" name="name">
Password: <input type="password" size="25" name="password">
Password (confirm): <input type="password" size="25" name="confirm">
<input type="hidden" name="roles" 
<input type="hidden" name="domains" value="">
<input type="submit" value="Continue" name="submitButtonName">


Notice the above form is posting to "checkUsers"
checkUsers is a python script located in the same folder as the form - 
you can name it anything you want
Here's the code for checkUsers:

#These two lines of code are generated automatically when you create a 
new script... just leave them there.
request = container.REQUEST

#This line of code looks to see if there is already a user in the 
acl_users folder...
if context.acl_users.getUser(request.form['name']):
#If it finds someone with that name, you can send the user to a page 
with the following line...

#If it doesn't find anyone, it moves to the following line which checks 
to make sure the password and confirmation fields are identical...
if request.form['password'] <> request.form['confirm']:
#If the fields don't match, you can forward the user to another page and 
tell them...

#If everything checks out, this next line finally adds the user...
context.acl_users.manage_users('Add', context.REQUEST)
#You can then use this last line to forward to yet another page with a 


If any of you Python gurus want to add anything to this, please feel 
free... I'm eventually going to take a bunch of examples and create a 
tutorial for Newbies.


On Tuesday, October 30, 2001, at 07:06 AM, M. Adam Kendall wrote:

> First, you might want to take Danny Adairs advice (as posted to the
> list), as he is correct in that if you have quite a few users, his
> method will work much faster when checking if a user exists.
> Also, the parameters that should be in the REQUEST for manage_users
> are:
>  name
>  password
>  confirm
>  roles
>  domains
> So you will have to either
> 1. Change your form to submit these same variable names, or,
> 2. do a context.REQUEST.set('name', context.REQUEST.form['Username'])
> etc, for each item you submit in the form and then pass REQUEST on
> to manage_users.  After making sure the right variables are
> defined in the request, your first attempt:
> context.acl_users.manage_users('Add', context.REQUEST)
> should work for you.
> On Tue, 2001-10-30 at 00:47, Rob Foster wrote:
>> Adam,
>> Thanks for the code... I tried it out and it works great... However, I
>> realized that I was doing the check correctly. What I WASN'T doing 
>> right
>> was the "add user here" part... here are the various lines of code that
>> I tried under the "else:" with no luck... A little more help with
>> possibly some explanation as to what's happening would be great...
>> Here are the various lines I've tried:
>> context.acl_users.manage_users('Add', context.REQUEST)
>> self.acl_users._addUser(username,password,confirmpass,liste_role,0)
>> userfolder.manage_users(submit='Add', REQUEST=user_info)
>> I got these bits of code from off various tutorials... Sometimes it
>> really sucks being a newbie :)
>> Thanks again,
>> Rob
>> ---------------------------------------------------------------------------------------------
>> On Monday, October 29, 2001, at 10:14 PM, M. Adam Kendall wrote:
>> basically, you'll want to do something along the lines of:
>> request = context.REQUEST
>> response = request.RESPONSE
>> if request.form['Username'] in context.acl_users.getUserNames():
>>     response.redirect('/UserAlreadyExists.html')
>> else:
>>     # add user here
>> On Mon, 2001-10-29 at 12:11, Rob Foster wrote:
>> Here's the setup:
>> I'm trying to add users to my site by having them fill out a form with
>> the following fields:
>> Username
>> Password
>> Confirm (password confirmation)
>> I want the form to post to a python script that will check the folder
>> and do a redirect to another document depending on what happens... I
>> don't know Python that well. I've tried doing it in dtml with no 
>> results.
>> Can someone help me with a little example code or at least point me 
>> to a
>> product that does this? Thanks in advance. -Rob