November 2009 - Zope

zope 2.10.7 enabling json server
by Jayakrishnan Nair 10 Nov '09

10 Nov '09

hello friends VERY VERY new to ZOPE and dfacing a problem with my final year project : working on a project that involves making an existing plone product json rpc enabled so that i can use it for cross site calls from a Mozilla extension i cant make standard httprequests because of the cross site security issues in the browser the query library (that i have to make json rpc enabled ) works fine with xml rpc in python and using the GET method in the url but i need it to work for json requests i have added this http://www.zope.org/Members/ree/jsonserver2 and tried using several javascript json rpc libraries but still no luck are there any settings involved that i have to do to make the query library json enabled there is also an examples section to it which breaks the ZMI completely in the above package there is a test folder containing a test script to check the working but no clue how to execute it cos in teh zmi it goes into a loop asking for authorization if u can pls help me and tell me a solution to this problem it will be just awesome thanks jayakrishnan Nair

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Re: [Zope] UTF-8 problem with zope2.10 and postgresql [Solved]
by Claire Boussard 09 Nov '09

09 Nov '09

----- "Jonathan (dev101)" <dev101(a)magma.ca> a écrit : > ----- Original Message ----- > From: "Andreas Jung" <lists(a)zopyx.com> > To: "Claire Boussard" <claibous2(a)free.fr> > Cc: "zope" <zope(a)zope.org> > Sent: Friday, November 06, 2009 12:47 PM > Subject: Re: [Zope] UTF-8 problem with zope2.10 and postgresql > > > > Am 06.11.09 17:40, schrieb Claire Boussard: > >> > >> In the HTML page > >> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" > /> > >> > > The ZPublisher does not care about that. You may set the > content-type > > explictly as HTTP header and not through http-equiv by calling > > > > RESPONSE.setHeader(key, value) > > > > (no idea how to do that using the ancient technology DTML). > > > <dtml-call "RESPONSE.setHeader('Content-Type','text/html; > charset=UTF-8')"> I tried this but it changed nothing, I think specifiying default-zpublisher-encoding utf-8 in zope.conf does the same. Eventually I have replaced <dtml-var firstname> with <dtml-var expr="firstname.decode('utf8')"> I do'nt really understand why, and it's not very convenient as I must fix all the pages, but it works! Many thanks to all who responded. Claire Boussard

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Re: [Zope] Large BTreeFolder2 batching/pagination
by Ken Ara 08 Nov '09

08 Nov '09

I take your suggestion to find a Catalog-based solution. I have set the subtransactions very low (100). But I have got the following error: Traceback (innermost last): Module ZPublisher.Publish, line 119, in publish Module ZPublisher.mapply, line 88, in mapply Module ZPublisher.Publish, line 42, in call_object Module Products.ZCatalog.ZCatalog, line 348, in manage_catalogFoundItems Module Products.ZCatalog.ZCatalog, line 800, in ZopeFindAndApply Module Products.ZCatalog.ZCatalog, line 559, in catalog_object Module transaction._manager, line 110, in savepoint Module transaction._transaction, line 312, in savepoint Module transaction._transaction, line 309, in savepoint Module transaction._transaction, line 737, in __init__ Module ZODB.Connection, line 1034, in savepoint Module ZODB.Connection, line 543, in _commit Module ZODB.Connection, line 571, in _store_objects Module ZODB.Connection, line 1168, in store IOError: [Errno 28] No space left on device I am guessing that this process is using the /tmp directory which unfortunately was incorrectly sized at only 1.9Gb. Can someone confirm this? Then either I must find a way to change the /tmp size, or is there a solution through Zope? Thank you. Ken --- On Mon, 11/2/09, Andreas Jung <lists(a)zopyx.com> wrote: > > We have not been successful to create a Catalog of this many objects. > The process seemed to time out after many hours, probably > hardware-bound. Also, the size of the resulting ZODB is of concern, > but we may try again with the Catalog on a mounted database. > we have ZCatalogs with millions of objects..likely you are indexing everything within one big transaction without using savepoints or subtransactions.. > -aj

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UTF-8 problem with zope2.10 and postgresql
by Claire Boussard 08 Nov '09

08 Nov '09

Hello, I'm trying to upgrade my applications from debian sarge to debian lenny, so from zope2.7 to zope2.10. I've decided to have all in UTF-8 in my new server, which is the default for lenny, for postgresql also. The situation now is : In the database, all is OK If I create a ZSQL method (say sql_candidat) in the ZMI and test it, all is OK (example firstname : Andrée) If I create a dtml method, loop over my ZSQL method, and print the firstname, it's messed up. Example dtml: <dtml-in sql_candidat> <dtml-var firstname> </dtml-in> The result in the browser is : AndrÃ©e A contrario : In the page <input type="text" size="20" name="firstname:utf8:ustring" In the browser, I type Andrée, I click on submit, the data are saved through another ZSQL method (UPDATE SQl statement) and all is OK in the database In zope.conf: locale fr_FR.utf8 rest-input-encoding utf-8 rest-output-encoding utf-8 rest-language-code fr default-zpublisher-encoding utf-8 In the HTML page <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> The HTTP header (with liveHTTPheader in firefox) is correct : Content-Type: text/html; charset=utf-8 Any idea ? Claire Boussard.

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Re: [Zope] sharing instance_home?
by Jürgen Herrmann 05 Nov '09

05 Nov '09

On Wed, November 4, 2009 15:05, Chris Withers wrote: > Jürgen Herrmann wrote: >> no how can i run 2 zope processes from the same instance >> home with 2 different config files? > > What version of Zope is this? > > Should be fine, provided the instances are configured to use different pid files, log files, local zodb cache files, etc... > > Chris > a few observations: - running several zope processes inside one instance_home is very simple via modified runzope shell scripts (just modify config filename) - trying the same via zopectl is a pita because: o when doing a "zopectl start" it calls runzope in the end and does not pass the config filename, instead runzope uses the hardcoded one in itself o zopectl abviously uses hard coded socket name and the daemon manager refuses to start up twice... o i got tired trying to fix that stuff, as making my own set of startup scripts calling runzope only took me very little time. works for me now. what's the point of that really complex daemon manager anyway? - i have not observed any product that puts runtime data in the instance_home, except ThreadSafeCounter which uses lock files in instance_home/var. i want to share these lock files between processes anyway, so this is rather good than bad. no problems with my other products. best regards, jürgen -- >> XLhost.de - eXperts in Linux hosting ® << XLhost.de GmbH Jürgen Herrmann, Geschäftsführer Boelckestrasse 21, 93051 Regensburg, Germany Geschäftsführer: Volker Geith, Jürgen Herrmann Registriert unter: HRB9918 Umsatzsteuer-Identifikationsnummer: DE245931218 Fon: +49 (0)800 XLHOSTDE [0800 95467833] Fax: +49 (0)800 95467830 WEB: http://www.XLhost.de IRC: #XLhost(a)irc.quakenet.org

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sharing instance_home?
by Jürgen Herrmann 04 Nov '09

04 Nov '09

currently i'm running a single zope2 process with relstorage as storage backend. to improve performance for our end users i'd like to fire up a 2nd zope2 process that will handle all internal background processes and db packing. for simplicity's sake i'd like to share the instance_home directory between these two processes, just use a different config file to enter a different http port for each server. no how can i run 2 zope processes from the same instance home with 2 different config files? modifying $INSTANCE_HOME/zopectl to include a different config file name does not work, as it's also contained in $INSTANCE_HOME/runzope. renaming/modifying runzope does not work either, as it's name is hardcoded somewhere in zopectl. thanks in advance and best regards, jürgen herrmann -- >> XLhost.de - eXperts in Linux hosting ® << XLhost.de GmbH Jürgen Herrmann, Geschäftsführer Boelckestrasse 21, 93051 Regensburg, Germany Geschäftsführer: Volker Geith, Jürgen Herrmann Registriert unter: HRB9918 Umsatzsteuer-Identifikationsnummer: DE245931218 Fon: +49 (0)800 XLHOSTDE [0800 95467833] Fax: +49 (0)800 95467830 WEB: http://www.XLhost.de IRC: #XLhost(a)irc.quakenet.org

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Large BTreeFolder2 batching/pagination
by Ken Ara 02 Nov '09

02 Nov '09

We have some BTreeFolder2's containing hundreds of thousands of objects, even one containing over 2 million instances of Folder. That is really no problem in itself. Under our setup, beyond 300-400,000 contained objects, the batching provided by getBatchObjectListing becomes unusable. I've seen this problem mentioned somewhere but never any hint of a solution. We have a new application that will require pagination, or ideally, the ability to go forward and back through the items (any order). Is there a way to refer to the contained items by something like offset? It might be easy if the objects had sequential, consecutive numeric ids, but sadly this cannot be the case. We are using the BTreeFolder2-1.0.2 version that came with Zope 2.10. Thanks. Ken

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