July 2000 - Zope - Zope lists

Re: [Zope] Newbe question concerning using python classes and external methods
by Richard Taylor 06 Jul '00

06 Jul '00

"Gaspard, Bradley S" <BRADLEY.S.GASPARD(a)saic.com> writes: > All, > > I am a new Zope user and I guess I'm missing something fundemental that I > haven't been able to glean from the documentation and various "How-to's". > As a learning tool I am trying to implement one of Brian Lloyd's examples I > found on the Web implementing a GuestBook. > > I suspect what I don't understand is how to write the external method that > would make use of this class (The one I have been playing with follows the > class definitions). Anyhow, I've created an an external method and call > (e.g. <dtml-var guest>) after which the guestBookForm is displayed. After > filling out the form and submitting it Zope does not seem able to find the > signGuestBook method. What am I doing wrong?? > I not to sure why you have gone down the route of doing all of this as an external method? I would have thought that the form should be generated from an DTMLDocument and a signal function in the External method could do the file-stuff and return the success page, no real need for the class at all. But, I guess you are just using this as a learning exercise, so what do I know. Zope can't find you signGuestBook function because it knows nothing about your GuestBook class. The only thing you have told it about is the ExternalMethod AddGuest. You could add another ExternalMethod something like (code not tested): def SignGuestBook(name,email): myGuestBook=guestbook.GuestBook('My GuestBook', 'guestbookdata.txt') return myGuestBook.signGuestBook(name,email) then create a DTMLmethod call signGuestBook: <dtml-var "SignGuestBook(name,email)"> you will need to add the SignGuestBook function as an external method in addition to the one you already have. You can see from this that the creation of an instance of the GuestBook class is pretty pointless because it only exists within the scope of the function in which it is created. Another thing to bear in mind (it caught me out recently) is that ExternalMethods are load once when Zope is started (or they are first called, I am not sure which) not every time they are called. This means that any global variables you create are common to every call. As Zope is multithreaded this may catch you out if you do not consider it. Hope this helps. Richard > Other than mostly trivial examples, I haven't been able to find many > complete (working) examples of using external methods. > > Thanks in advance for any help. > > """Module guestbook: a simple guestbook application""" > > class GuestBook: > """A guestbook object that provides both the forms > and the handling of submitted form data.""" > > def __init__(self, title, filename): > self.title=title > self.filename=filename > > def guestbookForm(self): > """Return the guestbook from to the user""" > return """<HTML> > <HEAD><TITLE>%s</TITLE></HEAD> > <BODY> > <H2>%s</H2> > Please sign our guestbook! > <P> > <FORM ACTION="signGuestBook" METHOD="POST"> > Name: <INPUT TYPE="TEXT" NAME="name"><BR> > Email: <INPUT TYPE="TEXT" NAME="email"><BR> > <INPUT TYPE="SUBMIT" VALUE="Sign Guestbook"> > </FORM> > </BODY> > </HTML>""" % (self.title, self.title) > > def successPage(self): > """Return a page to thank the user on success""" > return """<HTML> > <HEAD><TITLE>%s</TITLE></HEAD> > <BODY> > <H2>Thank You!</H2> > Thank you for signing %s! > </BODY> > </HTML>""" % (self.title, self.title) > > def signGuestBook(self, name, email='not specified'): > """Handle a submitted guestbook form""" > > # Open a file to save the guestbook entry > try: > file=open(self.filename, 'a') > except IOError: > file=open(self.filename, 'w') > entry='Guestbook entry: %s %s\n' % (name, email) > file.write(entry) > file.close() > return self.successPage() > > External method > > import sys > sys.path.append('/usr/local/src/Zope-2.1.6-linux2-x86/lib/python/Shard/jscap > e/winsat') > > import guestbook > > def AddGuest(self): > myGuestBook=guestbook.GuestBook('My GuestBook', 'guestbookdata.txt') > return myGuestBook.guestbookForm() > > Brad > > _______________________________________________ > Zope maillist - Zope(a)zope.org > http://lists.zope.org/mailman/listinfo/zope > ** No cross posts or HTML encoding! ** > (Related lists - > http://lists.zope.org/mailman/listinfo/zope-announce > http://lists.zope.org/mailman/listinfo/zope-dev )

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Calculate values?
by Peter Arvidsson 06 Jul '00

06 Jul '00

I am about to do <dtml-call "REQUEST.set('a', (a - b) * 15"> The problem is that I cant get the calculation right. a and b are text input in my form (int's) and I want to first calculate a-b and the take the answer times 15 before submitting the event. How can I do that??

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howto_GUF
by Mario Premke 06 Jul '00

06 Jul '00

Hi, I have installed Genreic User Interface with all the permission settings described in the README, but I cannot log into the folder which I want to protect. When I log in as "jorge" with passwd "secret" I get: Sorry, a Zope error occurred. Traceback (innermost last): File /home/mapr/Zope-2.1.6-linux2-x86/lib/python/ZPublisher/Publish.py, line 214, in publish_module File /home/mapr/Zope-2.1.6-linux2-x86/lib/python/ZPublisher/Publish.py, line 179, in publish File /home/mapr/Zope-2.1.6-linux2-x86/lib/python/Zope/__init__.py, line 202, in zpublisher_exception_hook (Object: ElementWithAttributes) File /home/mapr/Zope-2.1.6-linux2-x86/lib/python/ZPublisher/Publish.py, line 151, in publish File /home/mapr/Zope-2.1.6-linux2-x86/lib/python/ZPublisher/BaseRequest.py, line 430, in traverse File /home/mapr/Zope-2.1.6-linux2-x86/lib/python/Products/GenericUserFolder/GenericUserFolder.py, line 270, in validate (Object: ElementWithAttributes) File /home/mapr/Zope-2.1.6-linux2-x86/lib/python/Products/GenericUserFolder/GenericUserFolder.py, line 308, in _basic_validate (Object: ElementWithAttributes) File /home/mapr/Zope-2.1.6-linux2-x86/lib/python/zLOG.py, line 198, in LOG File /home/mapr/Zope-2.1.6-linux2-x86/lib/python/Zope/ZLogger/ZLogger.py, line 18, in log_write File /home/mapr/Zope-2.1.6-linux2-x86/lib/python/Zope/ZLogger/stupidFileLogger.py, line 40, in __call__ File /home/mapr/Zope-2.1.6-linux2-x86/lib/python/Zope/ZLogger/stupidFileLogger.py, line 62, in stupid_log_write IOError: [Errno 5] Input/output error Any hints will be appreciated ... Mario

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Proxy Roles
by Robert Wohlfahrt 06 Jul '00

06 Jul '00

Hi, i have a Problem using Proxy-Roles: i have following folders: /foo/ bar1/ comments/ TEMPLATE bar1/ comments/ TEMPLATE barN/ ....... /make_a_comment/ submit >From a DTML-Method in "make_a_comment" I want to copy the folder TEMPLATE in a spezified comments-Folder and change some properties. I wrote a dtml-method called "submit": <dtml-with foo> <dtml-with "_.getitem(the_bar_id).comments"> <dtml-with "manage_clone(VORLAGE,REQUEST['a_new_id'],REQUEST)"> <dtml-call "manage_changeProperties( prop1=REQUEST['new_prop_1'], prop2=REQUEST['new_prop_2], )"> </dtml-with> </dtml-with foo> Now I want to use a Proxy-Role for "submit" to make it possible for everyone to add a comment with this method. I added the proxy-role "manager" to the "submit"-method. But if I access submit as anonymous, Zope still means, I don't have permissions to add a folder to /foo/barx/comments/... Any ideas to solve this problem? I use Zope-2.1.4 on a RedHat Linux Thanks Robert -- Robert Wohlfahrt (robert.wohlfahrt(a)sachsen-net.com) Tel: 0179 / 2980074 Fax: 0351 / 2880145

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zope/python startup error
by tom smith 06 Jul '00

06 Jul '00

newbie question. when zope starts I get the attached error dialog. Any ideas how I can fix this since zope is running on a remote server? It seemed to start going wrong after installing a shed-load of products into zope. cheers tom ps. to go into greater detail... ...I have two copies of Python...one in Zope's "lib" folder, and another in "Program files". Do I "need" both? Are they getting their PYTHONPATHs mixed up? Ideally I'd like just one Python, but with the IDLE editor AND the Windows extensions (ODBC),is this possible and how would I do it. Can I add IDLE and ODBC to zope's python without breaking zope.

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SquishDot properties
by tom smith 06 Jul '00

06 Jul '00

hi, I'd like to add a URL property to a Squishdot article (and remove the "dept" property), is this possible and how would I do it? Also, can I auto-complete the "from" field with the users' username that they have logged in with....this is for an intranet cheers tom

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Newbe question concerning using python classes and external methods
by Gaspard, Bradley S 06 Jul '00

06 Jul '00

All, I am a new Zope user and I guess I'm missing something fundemental that I haven't been able to glean from the documentation and various "How-to's". As a learning tool I am trying to implement one of Brian Lloyd's examples I found on the Web implementing a GuestBook. I suspect what I don't understand is how to write the external method that would make use of this class (The one I have been playing with follows the class definitions). Anyhow, I've created an an external method and call (e.g. <dtml-var guest>) after which the guestBookForm is displayed. After filling out the form and submitting it Zope does not seem able to find the signGuestBook method. What am I doing wrong?? Other than mostly trivial examples, I haven't been able to find many complete (working) examples of using external methods. Thanks in advance for any help. """Module guestbook: a simple guestbook application""" class GuestBook: """A guestbook object that provides both the forms and the handling of submitted form data.""" def __init__(self, title, filename): self.title=title self.filename=filename def guestbookForm(self): """Return the guestbook from to the user""" return """<HTML> <HEAD><TITLE>%s</TITLE></HEAD> <BODY> <H2>%s</H2> Please sign our guestbook! <P> <FORM ACTION="signGuestBook" METHOD="POST"> Name: <INPUT TYPE="TEXT" NAME="name"><BR> Email: <INPUT TYPE="TEXT" NAME="email"><BR> <INPUT TYPE="SUBMIT" VALUE="Sign Guestbook"> </FORM> </BODY> </HTML>""" % (self.title, self.title) def successPage(self): """Return a page to thank the user on success""" return """<HTML> <HEAD><TITLE>%s</TITLE></HEAD> <BODY> <H2>Thank You!</H2> Thank you for signing %s! </BODY> </HTML>""" % (self.title, self.title) def signGuestBook(self, name, email='not specified'): """Handle a submitted guestbook form""" # Open a file to save the guestbook entry try: file=open(self.filename, 'a') except IOError: file=open(self.filename, 'w') entry='Guestbook entry: %s %s\n' % (name, email) file.write(entry) file.close() return self.successPage() External method import sys sys.path.append('/usr/local/src/Zope-2.1.6-linux2-x86/lib/python/Shard/jscap e/winsat') import guestbook def AddGuest(self): myGuestBook=guestbook.GuestBook('My GuestBook', 'guestbookdata.txt') return myGuestBook.guestbookForm() Brad

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ZWiki with RemoteWikiLink - minor fix and remaining question
by Geoff Gardiner 06 Jul '00

06 Jul '00

I needed to create 'proper' URLs with a remote wiki link, but ZWiki 0.6.1 only allowed things of the form ZWikiName:name-with-characters-only. I suppose my locale setting translates too many things to whitespace, but I'm not sure. A simple fix in the ZWikiPage.py file (sorry no diff here): find line interwikilink = r'!?((?P<local>%s):(?P<remote>[\w]+))' % (wikilink) replace string [\w] by [A-Za-z0-9/:@_~#=\.\-\?] (note I couldn't include the % char because it seems to provoke the need for another string). Remaining question. Does anyone have a fix for the incorrect rendering of [notzwikiname] to nested URL <a href=notzwikiname><a href=notzwikiname>notzwikiname</a></a> or do I have to fix that for myself? This also fails to work as a remote wiki link, and I thought a fix for one might be a fix for the other also. Thanks. Geoff Gardiner

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MacOSX
by tom smith 06 Jul '00

06 Jul '00

I noticed in the how-tos that someone had managed to make a build of zope for MacOSX . Given that I know nothing about unix commands, is there a pre-made binary I can just drop onto my G4 (running OSX DP4) and run? Is this even possible or is it not the unix way? IS there a reason for there not being a macintosh version of zope, does the platform not allow it or is it just that nobody has wanted to do it tom

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RE: [Zope] LONG insert > 2000 chars fail
by Chris McDonough 06 Jul '00

06 Jul '00

Use <form action=bleah method=post>? > -----Original Message----- > From: Andy Gates [mailto:Andy.Gates@bristol.ac.uk] > Sent: Thursday, July 06, 2000 10:32 AM > To: zope(a)zope.org > Subject: Re: [Zope] LONG insert > 2000 chars fail > > > Message-ID: <EXECMAIL.1000706153218.Q(a)kosh.bris.ac.uk> > Priority: NORMAL > X-Mailer: Execmail for Win32 5.1 Build (9) > MIME-Version: 1.0 > Content-Type: Text/Plain; charset="us-ascii" > > Possibly related: Webform-based news story editor generates > long text > strings for body text. Using an ordinary form, this ends up > (url-encoded) in the URL, but it's betting truncated after about 2000 > chars. Many of my stories are longer than that. What to do? > > AndyG > > _______________________________________________ > Zope maillist - Zope(a)zope.org > http://lists.zope.org/mailman/listinfo/zope > ** No cross posts or HTML encoding! ** > (Related lists - > http://lists.zope.org/mailman/listinfo/zope-announce > http://lists.zope.org/mailman/listinfo/zope-dev ) >

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