[albatross-users] Getting None in the albform?

Mon Sep 16 15:43:09 EST 2002

The problem: I have a dict of IDs for which I need descriptions.  (It's known
as "missing" in the code below.)  When I run the attached script (which is a
cut down version of the original), it does the right thing (puts up the form
etc), but when I hit Submit I get the following traceback:

Template traceback (most recent call last):

Traceback (most recent call last):
  File "/usr/local/lib/python2.1/site-packages/albatross/app.py", line 145, in run
    self.merge_request(ctx)
  File "/usr/local/lib/python2.1/site-packages/albatross/app.py", line 219, in merge_request
    ctx.merge_request()
  File "/usr/local/lib/python2.1/site-packages/albatross/context.py", line 294, in merge_request
    self.set_value(name, value)
  File "/usr/local/lib/python2.1/site-packages/albatross/context.py", line 321, in set_value
    elems = string.split(name, ',')
  File "/usr/local/lib/python2.1/string.py", line 114, in split
    return s.split(sep, maxsplit)
AttributeError: 'None' object has no attribute 'split'

Having a look at the generated HTML, and doing the unpickle trick on
__albform__, I get the following:

	{'desc_id1': 0, 'desc_id2': 0, None: 0}

Which is where I suspect the None in the traceback is coming from.

Any clues?

BTW: There orta be a neater way to run a template from a literal string, say 
a ctx.run_template_str() function, for quick 1-pagers like this!

Greg,
New set of eyes, new set of bugs!
-------------- next part --------------
#! /usr/local/bin/python

templ = '''
<html>
<head></herad>
<body>
	  <table>
	  <tr><th>ID</th><th>Description</th></tr>
	  <al-form method="POST">
	  <al-for iter="s" expr="mkeys">
	      <tr>
	      <td><al-value expr="s.value()"></td>
	      <td><al-input type="text" nameexpr="'desc_%s' % s.value()" 
			    expr="missing[s.value()]" 
			    size="10"></td>
	  </al-for>
	  <tr>
	    <td colspan="2"><al-input type="submit" value="Submit"></td>
	  </tr>
	  </al-form>
</body>
</html>
'''

import sys

import albatross
from albatross.cgiapp import Request

class Input:
    def page_enter(self, ctx):
	ctx.locals.missing = { 'id1': '', 'id2': ''}
	ctx.locals.mkeys = ctx.locals.missing.keys()
	ctx.locals.mkeys.sort()
    def page_display(self, ctx):
	#ctx.run_template('input.html')
	t = albatross.Template(ctx,'<magic>', templ)
        t.to_html(ctx)
    def page_execute(self, ctx):
	print >> sys.stderr, "Never gets here"

app = albatross.SimpleApp('t2.py', '.', 'input', 'secret')
app.register_page('input', Input())
app.run(Request())

[albatross-users] Getting None in the __albform__?

[albatross-users] Getting None in the albform?