- Zope - Zope lists

URLSessionAdapter and SiteRoot
by Michael Fischer v. Mollard 02 Jul '02

02 Jul '02

Hi! I've a weird problem with the combination of an URLSessionAdapter and SiteRoot: In a folder with an URLSessionAdapter I can't use the management Interface, since there seems to be a 'rewriting loop' with news sessions, ending in an 'URL to long error' To illustrate the problem a snippet from the URL from apaches logfile: /NLAAdmin/NLAOverview/48655453A0WSQ3E4dzs/pt_editForm/NLAOverview/09137742A0WSQ3HmyLM/NLAAdmin/NLAOverview/pt_editForm/ ...... What's going wrong here and how can I fix this?

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adding properties and getting roles in python
by Chris Hoefler 02 Jul '02

02 Jul '02

Hi Folks, Part of the Zope site I am trying to develop involves collecting and storing membership information. I have run into a couple of snags, though. I have a form for adding users that calls a python script. The script is responsible for creating the user in acl_users, creating a personal folder for the user, and setting properties on the folder. So the code looks like this: context.acl_users.userFolderAddUser(username, pass, roles, 0) context.user_folders.manage_addFolder(username,'',0,0) context.user_folders.username.manage_addProperty('First Name', fname, 'string') The problem is with the third line. When the script is called I get an AttributeError on username. I believe this is because username is a variable containing the actual name of the folder. The interpreter doesn't know this and I can't figure out how to tell it. I have looked through the Zope API documentation and I haven't been able to find a function analagous to getObject(id=None) or some such thing. My second problem involves listing the roles of a user in acl_users. I execute the following code: context.acl_users.getUser('test').getRoles() and I get a list back. But the list contains "Authenticated" in addition to the actual roles of the user. I haven't logged in as this user, I am running the script as the Manager user (admin), so getRoles() shouldn't return "Authenticated" right? Does anybody know what is going on with and/or how to solve either of these problems? -Chris

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sessions and zsql methods again!
by Alejandro Fernandez 02 Jul '02

02 Jul '02

Hi, I want to "SELECT CAR,MOTOR,VENDOR FROM TBL_CAR WHERE CAR_ID=<dtml-sqlvar intCarId>" (note the suave lezynsky-reddick namings!) - and get that into a list of dicts, so I can then output it all in a dtml-in with sequence iteration parameters. Would this be something like session=context.REQUEST.SESSION ld=[] ld=qryGetCarInfo(car_id=session['car_id']) for x in ld: entry={} entry["car"]=x[0] entry["motor"]=x[1] entry["vendor"]=x[2] ld.append(entry) session['dbgrabs']=ld It's a lot of data I need to grab in about 14 different queries... I'm using the SESSION namespace to hold the values, so I'm thinking of grabbing all these values from the database before I generate individual output pages("loading... please wait"), or even better, somehow grabbing them a little at a time as the user browses the pages, and deleting the info at the end of a session, or when another CAR_ID is accessed. I know the session stuff doesn't have a guide yet, and there's no one answer to all this, but I thought posting here might be a source of helpful tips, and there might be others who are doing this kind of thing too. Are there any gotchas I should know about? Can I for example, somehow commit information as it's gathered, or do I have to build loops that store the info and set a boolean value at the end, to give a little hope that the info has been gathered? Thanks very much! Ale -- Alejandro Fernandez Electronic Group Interactive --+34-65-232-8086--

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Scalability questions
by Phil Glaser 02 Jul '02

02 Jul '02

Hi, I am beginning the planning process for a Zope content management system that will support approximately 8,000 users. It is hard to predict the day-to-day use of the system, so I am trying to think ahead about scalability issues, and I have a number of questions. STATIC FILES One of the suggestions in the literature for improving performance is to allow Apache to serve static files. It would seem, however, that doing so completely takes away the meta data and permission management features of Zope. The LocalFS product, on the other hand, enables you to serve content from the file system and maintain meta data and apply user permissions from Zope. Is there any performance advantage with LocalFS, or is it basically the same as storing the content in Data.fs? DATA.FS LIMITATIONS If all the site's content is stored in Data.fs, I'm concerned that it would quickly grow to a size that would result in performance drag. Since I'm used to the RDBMS world, it seems odd to store all that data in one file. Is there a rule of thumb with respect to the amount of data you can put into Data.fs before performance becomes an issue? ALTERNATIVES TO DATA.FS It seems like the following alternatives to DATA.FS in its default configuration are available: ***Distribution*** This option would involve separating the server that stores the .FS file from the one(s) running Zope. You would do this with a ZeoStorageServer. A variation on this theme would be to use NAS/NFS to put the data on a separate server. ***ExternalMount*** Here you would use the ExternalMount product to store the data for selected portions of ZODB (e.g., for a specific Product) in a separate .FS file, either on the same or a separate server. Presumably this option would mitigate performance issues resulting purely from the size of Data.FS. ***BerkeleyDB or Oracle*** Oracle or Berkeley DB can be used as the storage mechanism instead of .FS. But in doing so do you loose Zope functionality? ***LocalFS*** LocalFS could be used to store large objects (like spreadsheets, PDF files, WAV files, etc.) on the file system and benefit from Zope's meta data and permissions system. In this case, it seems like the data Zope would store would be limited to the meta data and permissions data -- the entire object would not be duplicated in Data.FS. Like the ExternalMount solution, LocalFS would, it seems, alleviate performance issues related to the size of Data.fs. Have I exhausted the possibilities, or are there others? Other there other issues I should be thinking about? Thanks for your help! Regards, Philip Glaser Principal and Software Architect Sustainable Software Solutions, LLC StillSmallVoice(a)DirectvInternet.com www.sustainsoft.com 973-951-9522

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Re: [Zope] Curl like product for Zope ??
by H.de.Wit＠SFK.NL 02 Jul '02

02 Jul '02

Just from browsing www.curl.com it seems to me that Curl is a corporation that builds an ide named Surge lab. There is not a lot of information on their website, i really don't know what Curl is, in a technical sense. A little guessing; May be there is a language behind this, may be the name of the language is Curl and Curl could have possibilities in the scientific area, data visualisation. Just something like Python.. On the other hand everything seems to be build in Java, so probably there is no Curl language. It is not clear from this website what Curl is. As far as i know, there has been done a reasonable amount of work in Python in the scientific area and on visualisation. see http://www.scipy.org/ Not everything is ment for Zope though. Met vriendelijke groeten, Hans de Wit

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Product Troubles
by Jason Bush 01 Jul '02

01 Jul '02

I am new to the Python programming language, and am trying to get a new product to work. Alas I received this error that I cant seem to track down... Error Type: AttributeError Error Value: raw Traceback (innermost last): File /usr/scar/export1/dist/zope-new/lib/python/ZPublisher/Publish.py, line 150, in publish_module File /usr/scar/export1/dist/zope-new/lib/python/ZPublisher/Publish.py, line 114, in publish File /usr/scar/export1/dist/zope-new/lib/python/Zope/__init__.py, line 158, in zpublisher_exception_hook (Object: this_test) File /usr/scar/export1/dist/zope-new/lib/python/ZPublisher/Publish.py, line 98, in publish File /usr/scar/export1/dist/zope-new/lib/python/ZPublisher/mapply.py, line 88, in mapply (Object: index_html) File /usr/scar/export1/dist/zope-new/lib/python/ZPublisher/Publish.py, line 39, in call_object (Object: index_html) File /usr/scar/export1/dist/zope-new/lib/python/Products/NOLContent/NOLContent.py, line 71, in index_html (Object: this_test) File /usr/scar/export1/dist/zope-new/lib/python/DocumentTemplate/DT_String.py, line 411, in __call__ (Object: this_test) File /usr/scar/export1/dist/zope-new/lib/python/DocumentTemplate/DT_String.py, line 340, in cook (Object: this_test) File /usr/scar/export1/dist/zope-new/lib/python/DocumentTemplate/DT_String.py, line 332, in read (Object: this_test) File /usr/scar/export1/dist/zope-new/lib/python/DocumentTemplate/DT_String.py, line 328, in read_raw (Object: this_test) AttributeError: (see above) This class inherits from SimpleItem and DTMLMethod and the line of my code (line 71 of NOLContent.py) is: apply(HTML.__call__,(self, client, REQUEST), kw) I am trying to the the ZPublisher to render the content, (self.data of the object), if I just return the self.data it works by showing the HTML portions correctly, but the <DTML> is not rendered. Any help is appreciated. -- Jason Bush --- jason(a)nol.org Nebraska Online http://www.nol.org

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add multiple docs to DocLib
by Stephan Göldi 01 Jul '02

01 Jul '02

Are there any solutions around to load multiple files from a given directory to the DocumentLibrary product in one step?

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call zope methods from the operating system
by horst wald 01 Jul '02

01 Jul '02

Hi, I'm running Zope 2.5.0 on Suse 8.0 and I'm using os.system() and os.popen() a lot. Now I would like to to just the opposite thing: can I call Zope methods from the operating system (e.g. MySQLDA) without a loopback? Horst _________________________________________________________________ Mit MSN Fotos können Sie kinderleicht Ihre Fotos ausdrucken und Freunden zur Verfügung stellen: http://photos.msn.de

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External method UID
by Ruslan Spivak 01 Jul '02

01 Jul '02

Hello zope users, Zope2.5.0 under RH7.2 executes External Method with UID=99(nobody on my machine). How can I tell zope to execute it with UID=0 Thanks in advance Best regards, Ruslan mailto:alienoid@is.lg.ua

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Re: [Zope] Zope 2.4.0 --&gt; 2.6.x
by oliver.erlewein＠sqs.de 01 Jul '02

01 Jul '02

Hi all OK. I can't get the thing started with 2.6 at all. I get this errormessage over and over. 2002-07-01T09:27:55 INFO(0) ZODB Mounted database '11090112_1025508439.413717' at /temp_folder /lib/python/SearchIndex/__init__.py:19: DeprecationWarning: The usage of the SearchIndex package is deprecated since Zope 2.4. This package is only kept for backwards compatibility for a while and will go away in a future release. Please use instead the re-factored modules in Products/PluginIndexes. warnings.warn("The usage of the SearchIndex package is deprecated since \ /portal/prog/z3/lib/python/ts_regex.py:15: DeprecationWarning: the regex module is deprecated; please use the re module import regex, regsub #, Sync /usr/local/lib/python2.1/regsub.py:15: DeprecationWarning: the regsub module is deprecated; please use re.sub() DeprecationWarning) What am I doing wrong? Or what can I do to circumvent that? Thanx Oliver

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