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Re: [Zope] Problem Understanding URL
by Jared Hall 23 Jul '12

23 Jul '12

I don't know why these are creating new threads. And I'm sorry for the formatting on that last message.

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Re: [Zope] Problem Understanding URL
by Jared Hall 23 Jul '12

23 Jul '12

Tres, I see what you mean. You're saying that the object lookup for a request follows a pattern and that the __getitem__ function has a role in that pattern. That's fine, but even if this is returning a User object there is still a problem. I think we're beyond the point where you can help me though. The problem I'm thinking of is that I know that the /Users/asmithS URL resolves to a call to index_html method of Users which in this case is just rendering the "userView". As I've said the here/Property calls are located in this user view. Could this __getitem__ load the user into the context and then still call the index_html and return the .zpt? Thanks

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Re: [Zope] Problem Understanding URL
by Jared Hall 23 Jul '12

23 Jul '12

Ok I'd read about those functions a little bit in the Zope 2 book or the Developer's Guide, but they seemed like advanced techniques that I probably wouldn't need to understand. Back on topic; I ran this awesome command in the terminal: grep getitem x=$(find . *.*) and turned up some random references to getitem in some dtml code, which I judge to be insignificant. There was also one very interesting usage of __getitem__ in the python code itself, and I have to investigate the code further to understand what's going on. The function definition looks suspiciously like what I would expect to find for this 'hijacking' of control: def __getitem__(self, key): v=self._getOb(key, None) if v is not None: return v if hasattr(self, 'REQUEST'): request=self.REQUEST method=request.get('REQUEST_METHOD', 'GET') if request.maybe_webdav_client and not method in ('GET', 'POST'): return NullResource(self, key, request).__of__(self) raise KeyError, key I read this as: look up the object in the current context and return it. The only problem with this is that I don't see when the object gets placed into the proper context for the TAL statements like here/FirstName, etc. Thanks for your help already, and any continued guidance is appreciated.

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Problem Understanding URL
by Jared Hall 23 Jul '12

23 Jul '12

I think I have a simple question about how Zope is handling requests. My current task is to understand an already-written Zope web application. One thing I can't wrap my head around is this URL: https://mysite.com/UserManagement/Users/asmithS/ Speaking in Zope terms, the UserManagement object is contained in the top-level product. In the UserManagement object, there is a Users object. That's all fine and dandy, run of the mill, acquisition/containment. However, the Users object has no asmithS object. In fact, asmithS is just a username, which makes the last field in the URL essentially a parmeter on the Users object. >From examining the behavior of the webapp and the code itself, I know that the index_html method of the Users object is what is returned from this request, which is a Page Template that displays the user information based on the parameter. All of what I've said so far could be wrong, so feel free to correct me if I've mis-spoken. The problem I have is that this asmithS guy seems magical. I can't figure out how the index_html knows to be called with the username as a parameter(obviously the index_html function doesn't explicitly require the parameter). What I BELIEVE is happening: the asmithS argument is processed before the page template renders. For example, when asmithS is given, a lookup is performed on the database that adds variables to the REQUEST object such as FirstName, LastName, etc. I can't find this happening but I think it must exist. >From the zpt file: <td valign="top" tal:content="here/LastName">Doe</td> What I want to know is: How can do these URL arguments work? A more advanced question would be: how do you think these here/*** variables are being added to the context. I'm actually using Zope 2. Thanks for any help

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A basic question
by Giampiero Benvenuti 14 Jul '12

14 Jul '12

Hello, I have a python script in my zope instance: dt=DateTime(2012,1) print dt print dt.strftime('%Y') print dt.year() return printed 2012/01/01 00:00:00 GMT+2 2011 2012 Why do I get two different values for the year (2011, 2012)? Thank you, Giampiero

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Python scripts
by Richard Harley 06 Jul '12

06 Jul '12

Hi On Zope 2.10 is there a simple/universal way to only allow python scripts to be called by DTML methods or other python scripts and not directly TTW? Thanks Rich

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Sessioning
by Richard Harley 23 May '12

23 May '12

Does anyone have a recommendation on how to implement sessioning on Zope 2? Basically to set browser timeouts for the user so logout after say 20 mins of inactivity. The difficulty we've had previously is detecting what exactly 'inactivity' is... Cheers Rich

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Unexpected behavior with zope.session 3.9.5
by Chris Austin 11 Apr '12

11 Apr '12

Hi List, I'm running into an bit of a problem implementing zope.session on Zope2-2.12.10. When running the following code inside a class that inherits from BrowserView: session = ISession(self.request)[product_id] I get the following error. AttributeError: ZServerHTTPResponse instance has no attribute 'getCookie' Looking through the zope.session code, the Session object adapts IRequest. The exception is being thrown in zope.session.http.CookieClientIdManager in the the getRequestId() method with the following code. def getRequestId(self, request): '''....''' response_cookie = request.response.getCookie(self.namespace) I am not sure where to begin tracking this down. Could this be an error with utility lookup?

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Re: [Zope] Zope Digest, Vol 95, Issue 1
by Yuri 05 Apr '12

05 Apr '12

> Hi Yuri, > > does this error occur with all browsers? Yes, unfortunately. > I once had a similar issue > that was caused only by some browsers because they do not send a > HTTP_ACCEPT_CHARSET header. > > Maybe the following bug reports helps you in solving the issue: > https://bugs.launchpad.net/zope2/+bug/160968 I can see it, but I've 2.12.XX and this should be fixed. This is the code in http.py: def getPreferredCharsets(self): '''See interface IUserPreferredCharsets''' charsets = [] sawstar = sawiso88591 = 0 header_present = bool(self.request.get('HTTP_ACCEPT_CHARSET')) for charset in self.request.get('HTTP_ACCEPT_CHARSET', '').split(','): charset = charset.strip().lower() isn't HTTP_ stripped from the request variable name? > I'm using a workaround similar to that in the bug report in my > environment (Zope 2.13.13 and a mixture of utf-8 and iso8859). > Without the workaround the issue does still occur for me. can you send me your workaround? Maybe it can help :P > Greetings, > Stefan > > Am 03.04.2012 09:40, schrieb Yuri: >> Hi! >> >> I've an Zope application, basically postgres + zpt. >> >> The postgres db has been upgraded to 8.5, the data inside is utf-8 >> (dumped and checkd it), the pg adapeter is the latest, and the "*Z >> Psycopg 2 Database Connection" is configured to use utf-8.* Zope is >> 2.12.20 + latest security fix. >> >> When I try to do: >> >> <span tal:replace="result/?column" /> (result came from an ZSQL method) >> I get an UnicodeDecodeError: >> >> Traceback (innermost last): >> Module ZPublisher.Publish, line 127, in publish >> Module ZPublisher.mapply, line 77, in mapply >> Module ZPublisher.Publish, line 47, in call_object >> Module Shared.DC.Scripts.Bindings, line 324, in __call__ >> Module Shared.DC.Scripts.Bindings, line 361, in _bindAndExec >> Module Products.PageTemplates.ZopePageTemplate, line 335, in _exec >> Module Products.PageTemplates.ZopePageTemplate, line 432, in pt_render >> Module Products.PageTemplates.PageTemplate, line 80, in pt_render >> Module zope.pagetemplate.pagetemplate, line 113, in pt_render >> Module zope.tal.talinterpreter, line 271, in __call__ >> Module zope.tal.talinterpreter, line 343, in interpret >> Module zope.tal.talinterpreter, line 888, in do_useMacro >> Module zope.tal.talinterpreter, line 343, in interpret >> Module zope.tal.talinterpreter, line 946, in do_defineSlot >> Module zope.tal.talinterpreter, line 343, in interpret >> Module zope.tal.talinterpreter, line 533, in do_optTag_tal >> Module zope.tal.talinterpreter, line 518, in do_optTag >> Module zope.tal.talinterpreter, line 513, in no_tag >> Module zope.tal.talinterpreter, line 343, in interpret >> Module zope.tal.talinterpreter, line 821, in do_loop_tal >> Module zope.tal.talinterpreter, line 343, in interpret >> Module zope.tal.talinterpreter, line 821, in do_loop_tal >> Module zope.tal.talinterpreter, line 343, in interpret >> Module zope.tal.talinterpreter, line 852, in do_condition >> Module zope.tal.talinterpreter, line 343, in interpret >> Module zope.tal.talinterpreter, line 376, in do_startEndTag >> Module zope.tal.talinterpreter, line 405, in do_startTag >> Module zope.tal.talinterpreter, line 502, in attrAction_tal >> UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 38: >> ordinal not in range(128) >> >> if I do: >> >> <span tal:replace="python:str(result['column']).decode('utf-8')" /> it >> works. (I use str because I've also dates in the record, otherwise I >> could not decode being it not a string) >> >> I've several zpt to fix, and I would like it to work as it should. My >> analisys is that result['column'] is seen as a plain string with \xx >> characters inside, and decode just transform it in something that Zope >> recognize as utf-8 when it prints it. >> >> Anyway, any idea? >> _______________________________________________ >> Zope maillist - Zope(a)zope.org >> https://mail.zope.org/mailman/listinfo/zope >> ** No cross posts or HTML encoding! ** >> (Related lists - >> https://mail.zope.org/mailman/listinfo/zope-announce >> https://mail.zope.org/mailman/listinfo/zope-dev )

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UnicodeDecodeError
by Yuri 03 Apr '12

03 Apr '12

Hi! I've an Zope application, basically postgres + zpt. The postgres db has been upgraded to 8.5, the data inside is utf-8 (dumped and checkd it), the pg adapeter is the latest, and the "*Z Psycopg 2 Database Connection" is configured to use utf-8.* Zope is 2.12.20 + latest security fix. When I try to do: <span tal:replace="result/?column" /> (result came from an ZSQL method) I get an UnicodeDecodeError: Traceback (innermost last): Module ZPublisher.Publish, line 127, in publish Module ZPublisher.mapply, line 77, in mapply Module ZPublisher.Publish, line 47, in call_object Module Shared.DC.Scripts.Bindings, line 324, in __call__ Module Shared.DC.Scripts.Bindings, line 361, in _bindAndExec Module Products.PageTemplates.ZopePageTemplate, line 335, in _exec Module Products.PageTemplates.ZopePageTemplate, line 432, in pt_render Module Products.PageTemplates.PageTemplate, line 80, in pt_render Module zope.pagetemplate.pagetemplate, line 113, in pt_render Module zope.tal.talinterpreter, line 271, in __call__ Module zope.tal.talinterpreter, line 343, in interpret Module zope.tal.talinterpreter, line 888, in do_useMacro Module zope.tal.talinterpreter, line 343, in interpret Module zope.tal.talinterpreter, line 946, in do_defineSlot Module zope.tal.talinterpreter, line 343, in interpret Module zope.tal.talinterpreter, line 533, in do_optTag_tal Module zope.tal.talinterpreter, line 518, in do_optTag Module zope.tal.talinterpreter, line 513, in no_tag Module zope.tal.talinterpreter, line 343, in interpret Module zope.tal.talinterpreter, line 821, in do_loop_tal Module zope.tal.talinterpreter, line 343, in interpret Module zope.tal.talinterpreter, line 821, in do_loop_tal Module zope.tal.talinterpreter, line 343, in interpret Module zope.tal.talinterpreter, line 852, in do_condition Module zope.tal.talinterpreter, line 343, in interpret Module zope.tal.talinterpreter, line 376, in do_startEndTag Module zope.tal.talinterpreter, line 405, in do_startTag Module zope.tal.talinterpreter, line 502, in attrAction_tal UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 38: ordinal not in range(128) if I do: <span tal:replace="python:str(result['column']).decode('utf-8')" /> it works. (I use str because I've also dates in the record, otherwise I could not decode being it not a string) I've several zpt to fix, and I would like it to work as it should. My analisys is that result['column'] is seen as a plain string with \xx characters inside, and decode just transform it in something that Zope recognize as utf-8 when it prints it. Anyway, any idea?

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