[Zope] Python Scripts

[Dennis Allison]

Right.  Thanks.... just the magic needed to solve the problem.

> 
> There's a method named "read" on PythonScript objects.  It returns the
> source of the Python Script including the "##" header lines.  It's
> available to users who have a role that includes the "View management
> screens" permissions.  Note also that the constructor for a Python
> Script (manage_addPythonScript) takes an argument "REQUEST".  The
> constructor looks for the "file" variable in REQUEST for the text to
> the new script.
> 
> So let's say you want to add a parameter to the "new" Python Script.
> If you create a Python Script with a proxy role of "Manager" that
> includes the following, any user who runs it will create a new script
> named 'new_script' with the text of 'old_script' with a new (fixed)
> parameter added to the parameter list:
> 
> old_text = context.old_script.read()
> new_lines = old_text.split('\n')
> new_lines = []
> for line in lines:
>    if line.startswith('##') and line.find('parameters=') != -1:
>        # this tacks foo=1 on to the parameter list
>        line = '%s,%s' % (line, 'foo=1')
>    new_lines.append(line)
> new_text = '\n'.join(new_lines)
> request = context.REQUEST
> request.set('file', new_text)
> context.manage_addPythonScript('new_script', REQUEST)
> # defeat the redirect caused by using manage_addPythonScript
> request.RESPONSE.setStatus(200)
> request.RESPONSE.setHeader('Location', '')
> 
> Slice and dice as required. ;-)
>