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Re: [Zope] problem saving file twice with ange-ftp
by Tres Seaver 11 Apr '01

11 Apr '01

John Hunter <jdhunter(a)ace.bsd.uchicago.edu> wrote: <snip> > There is one other feature of using ange-ftp that I have found > dissatisfying. If I access a WikiName for the first time that has no > content from ange-ftp (one of the links identified with a '?'), after > I edit it, commit the changes and then view it in the browser, the > page is displayed as plain text. I.e, *John* is displayed with the > asterisks, not as emphasized text. So I usually have to go to my > browser, access the empty wiki link, accept the default text and > commit it. Then I can go in and edit it with emacs over ange-ftp. > Not a big hassle but I'd rather avoid it. > > If I then go into the Zope GUI manager interface and look at the type > of document that was created, it is a DTML Document rather than a > ZWiki Page. Any suggestions here? You need to leverage the "PUT hook", described in the fishbowl at: http://dev.zope.org/Wikis/DevSite/Proposals/HookablePUTCreation Basically, the hook allows you to write a PythonScript (or ExternalMethod) 'PUT_factory', to override the default machinery which tries to figure out the kind of object to make when an FTP/HTTP PUT is done to a non-existent object. Sample External Method:: #Implement the "hookable PUT" hook. import re, OFS.DTMLMethod TEXT_PATTERN = re.compile( '^text/.*$' ) def PUT_factory( self, name, typ, body ): """ """ if TEXT_PATTERN.match( typ ): return OFS.DTMLMethod.DTMLMethod( '', __name__=name ) return None Tres. -- =============================================================== Tres Seaver tseaver(a)digicool.com Digital Creations "Zope Dealers" http://www.zope.org

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ext.method to pythonscript - simple question
by Duncan Booth 11 Apr '01

11 Apr '01

> Having some {very} rudimentary trouble translating External Python > Method work done many moons ago into [Zope]PythonScripts. If someone > could shine just a little light apples-for-apples, I would really > appreciate it. > > ExternalMethod > > #gettext.py > def gettext(self): > print "gettext" > params = urllib.urlencode({'message': Do you understand > now?','name':'Zope Lover','status':'done'}) > return params > > Please what is the correct syntax for this as PythonScript in Zope231? Create a python script 'gettext' and paste the following into the body: ------------- begin gettext ------------- def urlencode(dict): """Encode a dictionary of form entries into a URL query string.""" from Products.PythonScripts.standard import url_quote_plus from string import join l = [] for k, v in dict.items(): k = url_quote_plus(str(k)) v = url_quote_plus(str(v)) l.append(k + '=' + v) return join(l, '&') dict = {'message': 'Do you understand now?', 'name':'Zope Lover','status':'done'} params = urlencode(dict) return params ------------- end gettext ------------- The main problem is that you cannot import urllib into a python script, nor is there a direct equivalent of urlencode available to the script. However you can copy the definition of urlencode from urllib, and the two functions you need urllib.quote_plus and string.join are both importable (or the equivalent function is). The next problem is that the urlencode function cannot access variables in the script outside itself, so the imports need to be moved into the function. You could also define urlencode as a separate python script if you want to reuse it, but if you only need it in one place if can just be a local function. -- Duncan Booth duncan(a)rcp.co.uk

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[newbie] too often request for user re-authentication
by Win GO 11 Apr '01

11 Apr '01

is it normal for zope to request for re-authentication everytime you do a task? i'm new with zope and still learning the ropes. TIA __________________________________ www.edsamail.com

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Debugging tip: Actual HTTP Request with PDB & emacs, also applicable to other IDEs
by Andrew Athan 11 Apr '01

11 Apr '01

Perhaps I am missing some basic technique, but I don't believe this is documented anywhere, including the numerous debugging how-to's I've read. First, this simple technique for debugging Zope & Zope products within emacs amounts to: 1) Make some simple changes to emacs configs 2) Make some simple changes to Zope so that it handles requests single threaded 3) Specify where in the Zope (or your) code the debugger should start 4) Run pdb-mode in emacs, telling it to start Zope I don't think Test.py cuts it for me because I want to be able to see the response in a browser, and I like to interact with the dugger in an IDE (for me, emacs). The big problem was that the default PubCore behavior involves a separate thread which handles the request, and this wreaks havoc on pdb & on emacs' comint mode. The details have to do with the fact that pdb does not track thread creation & switching, etc. So, now the details: 1) Make some simple changes to emacs configs 1.A) I assume you're running the latest emacs with decently current python & gud modes. 1.B) Put this into your .emacs if you're running on win32: (setq gud-pdb-marker-regexp "^> \$[-a-zA-Z0-9_/.:\\]*\\|<string>\$(\$[0-9]+\$)\$[a-zA-Z0-9_]*\\|\\?\$( )\$->[^\n]*\$?\n") 2) Make some simple changes to Zope so that it handles requests single threaded This amounts to replacing the contents of __init__.py in PubCore with the lines following the ============= at the bottom of this message 3) Specify where in the Zope (or your) code the debugger should start Put import pdb at the very top of one of the Zope product files, even at the top of z2.py and pdb.set_trace() at the spot you want to start debugging from. I bet with some name space trickery you can make this happen inside a DTML document. Haven't tried yet. 4) Run pdb-mode in emacs, telling it to start Zope M-x pdb enter the following as the command, assuming a win32 platform and my setup: D:\Zope\bin\python.exe -i D:\Zope\z2.py -D -t 1 When your set_trace() call gets hit, you will be dropped into the debugger, and emacs will load the right file and move around with you as you use debugging commands. Enter "continue" and Zope will go along its merry way and return the results of your page to the browser, and wait for the next request. I hope this saves someone the 2 hours of reading Zope, medusa, and other sources that I spent. If this is totally misguided and there is a simpler technique, I'm all ears!! A. =================== import ZRendezvous from ZPublisher import publish_module _handle=None _n=1 def _simple_handle(name,request,response): print name,request,response try: publish_module( name, request=request, response=response) finally: response._finish() def handle(*args, **kw): global _handle global _n if _handle is None: if _n==1: _handle = _simple_handle else: _handle=ZRendezvous.ZRendevous(_n).handle return apply(_handle, args, kw) def setNumberOfThreads(n): global _n _n=n global setNumberOfThreads del setNumberOfThreads

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Help with Search in Zope
by Bobby Mathew 11 Apr '01

11 Apr '01

Hi I am a newbie to Zope and have been trying to get ZCatalogs to work with indexing my postgres data to be avaiable for search within my site. I have no clues on how this is possible (if possible at all?). I am able to follow the examples on the site to have the search working on the DTML documents etc. But I want to be able to search my database content. Can any one guide me on this please ? Thanks bobby ==================== Bobby Mathew Dialognet Technologies Y220, 2nd Avenue Annanagar Chennai - 600 040 Tel : 91-44-6216851/52 Fax : 91-44-6216873 Email : bobby(a)dialognet.com WWW : www.dialognet.com

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Re: [Re: [Re: [Zope] Problem with passing objects from External Methods]]
by Chris McDonough 11 Apr '01

11 Apr '01

Jason, I reported this issue to the Collector (the Zope bug tracking system) and I hope to get a chance to take a closer look at it tomorrow. Sorry I can't be more helpful right now... - C ----- Original Message ----- From: "Jason Joy" <kyroraz(a)usa.net> To: "Chris McDonough" <chrism(a)digicool.com> Sent: Tuesday, April 10, 2001 8:24 PM Subject: Re: [Re: [Re: [Zope] Problem with passing objects from External Methods]] Yes, there is visible (non-only source) tracebacks available: Zope Error Zope has encountered an error while publishing this resource. Error Type: TypeError Error Value: call of non-function (type string) Troubleshooting Suggestions The URL may be incorrect. The parameters passed to this resource may be incorrect. A resource that this resource relies on may be encountering an error. For more detailed information about the error, please refer to the HTML source for this page. If the error persists please contact the site maintainer. Thank you for your patience. File /usr/local/Zope-2.3.0/lib/python/ZPublisher/Publish.py, line 222, in publish_module File /usr/local/Zope-2.3.0/lib/python/ZPublisher/Publish.py, line 187, in publish File /usr/local/Zope-2.3.0/lib/python/Zope/__init__.py, line 221, in zpublisher_exception_hook (Object: Traversable) File /usr/local/Zope-2.3.0/lib/python/ZPublisher/Publish.py, line 171, in publish File /usr/local/Zope-2.3.0/lib/python/ZPublisher/mapply.py, line 160, in mapply (Object: DTMLFILE) File /usr/local/Zope-2.3.0/lib/python/ZPublisher/Publish.py, line 112, in call_object (Object: DTMLFILE) File /usr/local/Zope-2.3.0/lib/python/OFS/DTMLMethod.py, line 189, in __call__ (Object: DTMLFILE) File /usr/local/Zope-2.3.0/lib/python/DocumentTemplate/DT_String.py, line 538, in __call__ (Object: DTMLFILE) File /usr/local/Zope-2.3.0/lib/python/DocumentTemplate/DT_In.py, line 711, in renderwob (Object: passthis(foo)) File /usr/local/Zope-2.3.0/lib/python/DocumentTemplate/DT_Util.py, line 328, in eval (Object: foo) (Info: foo) File /usr/local/Zope-2.3.0/lib/python/OFS/DTMLMethod.py, line 261, in validate (Object: DTMLFILE) File /usr/local/Zope-2.3.0/lib/python/AccessControl/SecurityManager.py, line 144, in validate File /usr/local/Zope-2.3.0/lib/python/AccessControl/ZopeSecurityPolicy.py, line 164, in validate TypeError: (see above) Chris McDonough <chrism(a)digicool.com> wrote: Hi Jason, Is there a traceback associated with the error? (If it's not immediately evident, view the page source). Jason Joy wrote: > > Chris, > > I thank you for all your help with this frustrating issue. All your changes > have pointed me in the right direction, but I am facing one other issue with > it that I was wondering if you could shed some light on. > > The <dtml-var foo> within the <dtml-in passthis(bar)> is raising an > interesting error of: > > Error Type: TypeError > Error Value: call of non-function (type string) > > Removing the <dtml-var foo> does not bring up this error, of course. Is there > something that I am missing? > > Jason > > Chris McDonough <chrism(a)digicool.com> wrote: > Hi Jason, > > This is a stumper. But there's a solution. Rewrite your external > method to look like this: > > import string, regex > from AccessControl import ClassSecurityInfo > from Acquisition import Implicit > import Globals > > class element(Implicit): > security = ClassSecurityInfo() > security.declareObjectPublic() > security.setDefaultAccess('allow') > > def passthis(passed): > info = [] > structures = string.split(passed) > for structure in structures: > bit = element() > bit.data = foo > bit.source = structure > info.append(bit) > return(info) > > Globals.InitializeClass(element) > > For more info on why this is necessary, see > http://dev.zope.org/Wikis/DevSite/Projects/DeclarativeSecurity/ZopeSecurityF orDevelopers > > HTH, > > - C > > > def passthis(passed): > > class element: > > pass > > info = [] > > structures = string.split(passed) > > for structure in structures: > > bit = element() > > ## Get Information here, and store it in foo. > > bit.data = foo > > bit.source = structure > > info.append(bit) > > return(info) > > > > --- > > Jason Joy wrote: > > > > This one has been driving me a bit crazy and I think there is a simple > > solution to this. I have written an external method to return a list of > > objects back to a DTML method which executes the code via a dtml-in. > > > > The dtml code looks like: > > > > <dtml-in processMethod(passthis)> > > <dtml-var sequence-index><dtml-var data><BR> > > </dtml-in> > > > > And this is passthis.py: > > > > import string, regex > > > > def passthis(passed): > > class element: > > pass > > info = [] > > structures = string.split(passed) > > for structure in structures: > > bit = element() > > ## Get Information here, and store it in foo. > > bit.data = foo > > bit.source = structure > > info.append(bit) > > return(info) > > > > --- > > > > When I run the code, I get a box that asks me to revalidate my Zope login > and > > nothing works, finally, the system gives up and gives me an error with this > at > > the bottom: > > > > File /usr/local/Zope-2.3.0/lib/python/AccessControl/ZopeSecurityPolicy.py, > > line 168, in validate > > Unauthorized: data > > > > Does anyone have any advice on this one? This is an example of what I am > > doing and I need to pass a list of objects (with about 10 properties on > each) > > to be run through a dtml-in. > > > > Thanks, > > > > Jason > > > > ____________________________________________________________________ > > Get free email and a permanent address at http://www.netaddress.com/?N=1 > > > > _______________________________________________ > > 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 ) > > _______________________________________________ > 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 ) > > ____________________________________________________________________ > Get free email and a permanent address at http://www.netaddress.com/?N=1 ____________________________________________________________________ Get free email and a permanent address at http://www.netaddress.com/?N=1

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ext.method to pythonscript - simple question
by Jason Cunliffe 11 Apr '01

11 Apr '01

Having some {very} rudimentary trouble translating External Python Method work done many moons ago into [Zope]PythonScripts. If someone could shine just a little light apples-for-apples, I would really appreciate it. ExternalMethod #gettext.py def gettext(self): print "gettext" params = urllib.urlencode({'message': Do you understand now?','name':'Zope Lover','status':'done'}) return params Please what is the correct syntax for this as PythonScript in Zope231? thanks - Jason ___________________________________________________________ Jason CUNLIFFE = NOMADICS['Interactive Art and Technology']

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Zope wont write to anything?
by Joey D'Anna 11 Apr '01

11 Apr '01

hey, ive got zope running but when i try to start it up i get: Traceback (innermost last): File /root/Zope-2.3.1-src/z2.y, line 755, in ? IOError: [Errno 13] Permission denied: `/root/Zope-2.3.1-src/var/Z2.pid' it starts up fine in read only mode, but when i try to access things using worldpilot, i get the same crap but for worldpilots files. all the directories are writable, and i can touch and write to the files it mentions from bash. could sombody *please* tell me what is going on here? -Joey D'Anna

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Re: [Zope] problem saving file twice with ange-ftp
by Dieter Maurer 11 Apr '01

11 Apr '01

John Hunter writes: > I am using ange-ftp under GNU-emacs to edit my Zwiki Web in > emacs-wiki-mode and am encountering a strange problem. If I edit a > page, I can save the changes *one time only*. After that, I get an > error 426 from the ftp server: That's the effect of the so called "safety belt". Its purpose is to prevent concurrent modifications to the same document which would necessarily destroy one of the modifications. The safety belt can not prevent such desaster but can provide for a clean error message (that's what you get). When a ZWiki page is exported (for modification), its last modification time is put in its content. When it comes back, this content timestamp is compared against the last modification time. If there is a mismatch, the error occurs. I think, if you do not like this feature, you can discard the timestamp from your content. Changing source can, of cause, get completely rid of this safety feature.... Dieter

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Re: [Re: [Zope] Problem with passing objects from External Methods]
by Chris McDonough 11 Apr '01

11 Apr '01

Hi Jason, Is there a traceback associated with the error? (If it's not immediately evident, view the page source). Jason Joy wrote: > > Chris, > > I thank you for all your help with this frustrating issue. All your changes > have pointed me in the right direction, but I am facing one other issue with > it that I was wondering if you could shed some light on. > > The <dtml-var foo> within the <dtml-in passthis(bar)> is raising an > interesting error of: > > Error Type: TypeError > Error Value: call of non-function (type string) > > Removing the <dtml-var foo> does not bring up this error, of course. Is there > something that I am missing? > > Jason > > Chris McDonough <chrism(a)digicool.com> wrote: > Hi Jason, > > This is a stumper. But there's a solution. Rewrite your external > method to look like this: > > import string, regex > from AccessControl import ClassSecurityInfo > from Acquisition import Implicit > import Globals > > class element(Implicit): > security = ClassSecurityInfo() > security.declareObjectPublic() > security.setDefaultAccess('allow') > > def passthis(passed): > info = [] > structures = string.split(passed) > for structure in structures: > bit = element() > bit.data = foo > bit.source = structure > info.append(bit) > return(info) > > Globals.InitializeClass(element) > > For more info on why this is necessary, see > http://dev.zope.org/Wikis/DevSite/Projects/DeclarativeSecurity/ZopeSecurity… > > HTH, > > - C > > > def passthis(passed): > > class element: > > pass > > info = [] > > structures = string.split(passed) > > for structure in structures: > > bit = element() > > ## Get Information here, and store it in foo. > > bit.data = foo > > bit.source = structure > > info.append(bit) > > return(info) > > > > --- > > Jason Joy wrote: > > > > This one has been driving me a bit crazy and I think there is a simple > > solution to this. I have written an external method to return a list of > > objects back to a DTML method which executes the code via a dtml-in. > > > > The dtml code looks like: > > > > <dtml-in processMethod(passthis)> > > <dtml-var sequence-index><dtml-var data><BR> > > </dtml-in> > > > > And this is passthis.py: > > > > import string, regex > > > > def passthis(passed): > > class element: > > pass > > info = [] > > structures = string.split(passed) > > for structure in structures: > > bit = element() > > ## Get Information here, and store it in foo. > > bit.data = foo > > bit.source = structure > > info.append(bit) > > return(info) > > > > --- > > > > When I run the code, I get a box that asks me to revalidate my Zope login > and > > nothing works, finally, the system gives up and gives me an error with this > at > > the bottom: > > > > File /usr/local/Zope-2.3.0/lib/python/AccessControl/ZopeSecurityPolicy.py, > > line 168, in validate > > Unauthorized: data > > > > Does anyone have any advice on this one? This is an example of what I am > > doing and I need to pass a list of objects (with about 10 properties on > each) > > to be run through a dtml-in. > > > > Thanks, > > > > Jason > > > > ____________________________________________________________________ > > Get free email and a permanent address at http://www.netaddress.com/?N=1 > > > > _______________________________________________ > > 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 ) > > _______________________________________________ > 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 ) > > ____________________________________________________________________ > Get free email and a permanent address at http://www.netaddress.com/?N=1

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