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Re: Catalog reindexing in Zope
by R. David Murray 18 Apr '00

18 Apr '00

Chris Crownheart wrote: > I am trying to make a python based class be Catalog Aware and be >reindexed when it is edited. I basically started with the Boring >Product How-To, and have turned it into a Company Product. The class >inherits from CatalogAware (someone somewhere said that CatalogAware had >to be the first base class). I create my Company instance in another >class by calling the constructor with no values, then immediately >calling the manage_edit method to update the data. Based on that, I am >trying to index the object in the constructor, and reindex the object in >the manage_edit. With the code below, the object gets indexed in the >catalog, but all the fields (indexes) are blank! The reindex_object >call is not working for some reason. (At least it is not updating the >field indexes like I would expect.) (I moved this to zope-dev because I don't think it is a content-managers question...) I'm having the same problem. I call self.reindex_object() at the end of my edit method, but the catalog does not get updated. If I call reindex_object by tacking it onto the end of the URL for my object, the catalog gets updated. Is there a trick to getting reindex_object to work from a python product? I'm using the default catalog name, by the way. I'm running Zope 2.1.6, and I note that there was an exchange earlier about a possible problem in 2.1.6 where from a ZClass someone found they could not call reindex_object directly but had to use a redirect. Sounds like a variation on the same problem...anyone have a clue? --RDM

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Credit-Card handling in Zope (thread progamming?)
by Itamar Shtull-Trauring 18 Apr '00

18 Apr '00

I'm starting to research CC handling, and it seems the way CCVS works is that when you ask for a CC to be authorized, you don't get immediate feedback on success/failure. Instead, at some point the status changes to "authorized". I need to authenticate the CC, and do different actions depending on the result. Since this is going to be run non-interactively, I don't want to have a thread waiting around polling to see if the CC was authenticated - I need, I think, a new thread that does that and does a callback when the authorization is finished. Is it possible to mix threads in Python with Zope? Alternatively, the CC handling can be done by a different python program that does callback via, what - XML-RPC? The monitor? -- Itamar S.T. itamars(a)ibm.net

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Re: [Zope-dev] Credit-Card handling in Zope (thread progamming?)
by Anthony Baxter 18 Apr '00

18 Apr '00

You could have a separate task handle the CC transaction, and write an entry to a database when it's done. Then have a Zope page that checks for the transaction being complete - if not, it puts up a "please wait" and redirects to itself after 3 seconds. Anthony >>> Itamar Shtull-Trauring wrote > I'm starting to research CC handling, and it seems the way CCVS works is > that when you ask for a CC to be authorized, you don't get immediate > feedback on success/failure. Instead, at some point the status changes to > "authorized". > > I need to authenticate the CC, and do different actions depending on the > result. Since this is going to be run non-interactively, I don't want to > have a thread waiting around polling to see if the CC was authenticated - I > need, I think, a new thread that does that and does a callback when the > authorization is finished. > > Is it possible to mix threads in Python with Zope? Alternatively, the CC > handling can be done by a different python program that does callback via, > what - XML-RPC? The monitor? > > -- > Itamar S.T. itamars(a)ibm.net > > _______________________________________________ > Zope-Dev maillist - Zope-Dev(a)zope.org > http://lists.zope.org/mailman/listinfo/zope-dev > ** No cross posts or HTML encoding! ** > (Related lists - > http://lists.zope.org/mailman/listinfo/zope-announce > http://lists.zope.org/mailman/listinfo/zope ) > -- Anthony Baxter <anthony(a)interlink.com.au> It's never too late to have a happy childhood.

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Calling oracle stored procedures from ZSQLMethods
by Tim Hoffman 18 Apr '00

18 Apr '00

Hi I am a Zope and ZSQLMethod newby ;-) I would like to call an oracle stored procedure through a ZSQLmethod. Is this possible, is this the best way to do it, any hints or RTFM's TIA TimH

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<dtml-in> how do I get count of records in sequence? (aka batch-size)
by Brad Clements 18 Apr '00

18 Apr '00

I want to be able to do something like this: <dtml-in "GetDB()[Table][Indice][Rec].fetchall()"> <dtml-with "_['sequence-item']"> <dtml-if "_['sequence-size'] == 1"> <dtml-var "tableFromView(URL=URL0)"> <dtml-else> <dtml-var "tableFromView(viewName='DefaultLocatorView',URL=URL0)"> </dtml-if> </dtml-with> </dtml-in> That is, produce different output depending on the number of items returned from dtml-in. There isn't a "sequence-size" variable. I thought "batch-size" would work, but that doesn't seem to exist either, even when I use "size=nn" in the dtml-in statement. I know I can use total-nnn, but then I need to know an attribute name. In this case, I do *not* know any of the attributes in the objects returned from fetchall(). Therefore I'm stuck doing something like this: <dtml-if "_.len(GetDB()[Table][Indice][Rec].fetchall()) == 1"> <dtml-var "GetDB()[Table][Indice][Rec].fetchone().tableFromView(URL=URL0)"> <dtml-else> <dtml-in "GetDB()[Table][Indice][Rec].fetchall()"> <dtml-with "_['sequence-item']"> <dtml-var "tableFromView(viewName='DefaultLocatorView',URL=URL0)"> </dtml-with> </dtml-in> This is ugly, and unlike SQLMethods, the value returned from fetchall() is not cached. (not sure if DTML caches the result of the call or not) FYI, I'm using SQLDict.py here, and its very nice. Next step is to emulate a DB interface using Zope Database Adapters. This way I can test my core logic outside of Zope, but work with the transaction machinery inside zope. Brad Clements, bkc(a)murkworks.com (315)268-1000 http://www.murkworks.com (315)268-9812 Fax netmeeting: ils://ils.murkworks.com AOL-IM: BKClements

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Re: [Zope-Dev] Spliter
by Sin Hang Kin 17 Apr '00

17 Apr '00

> #1. The class heirarchy would look like this: > > UnicodeVocabulary > ^ > | > UnicodeLexicon (provides)--> UnicodeSplitter > I am not a programmer, but it sounds like it should be. However, I should like to point out that the normalization should be carried out before the vocabulary processing. Rgs, Kent Sin

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Importing into ZODB AND updating
by Grakka 17 Apr '00

17 Apr '00

Can anyone provide help about importing an exported ZODB (ZEXP) file and UPDATE any objects that are newer to the existing ones? Right now, when ZOPE (ObjectManager.py) finds that another record with the same ID, it raises an exception "Object Is Already In Use", but I want to update it instead..... In both the ZODB and the ZEXP file, each object contains the 8-byte serial, which is the TimeStamp of the last modified date of the object, I can access the TimeStamp of the ID located in ZODB, but I do not know how to access the TimeStamp serial on the IMPORTED file, here is a chunk of code from ObjectManager.py def _checkId(self, id, object, allow_dup=0): # If allow_dup is false, an error will be raised if an object # with the given id already exists. If allow_dup is true, # only check that the id string contains no illegal chars. if not id: raise 'Bad Request', 'No id was specified' if bad_id(id) != -1: raise 'Bad Request', ( 'The id %s contains characters illegal in URLs.' % id) if id[0]=='_': raise 'Bad Request', ( 'The id %s is invalid - it begins with an underscore.' % id) if not allow_dup: if hasattr(self, 'aq_base'): self=self.aq_base ----------->>> if hasattr(self, id): ----------->>> #self._getOb(id)._p_serial has the ZODB (not the export) timestamp ----------->>> #object._p_serial yields the same result as above.. ----------->>> raise 'Bad Request', ( ----------->>> 'The id %s is invalid - it is already in use' % id)) -------------snip------------- On the parameter definition, "object" is defined: ob=self._p_jar.importFile(file) My understanding is that the importFile module first "places" all the exporte file in the ZODB database, but makes the objects "unreachable [??]" until it checks for dupes ans so on.. I know this mail is long enough but if you read this far I want to thank you in advance :) Julio

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Re: [Zope-dev] compile warning
by Tres Seaver 17 Apr '00

17 Apr '00

"Dr. Ross Lazarus" <rossl(a)med.usyd.edu.au> > I've noticed this flash by before when compiling source distributions > > rossl on innana~/zope216>python wo_pcgi.py > wo_pcgi.log > ./../Components/zlib/zlib.c: In function `PyZlib_compress': > ./../Components/zlib/zlib.c:61: warning: assignment from incompatible > pointer type > rossl on innana~/zope216> > > fresh zope 2.1.6 source on redhat 6.1/intel. > AFAIK it's been there for several releases - I'd never thought to ask... > - in the light of the mysterious core dump/thread problem, does this > warning matter? Its a typo, but harmless, since the pointer being cast to the wrong type before assignment is NULL. Here's a quick patch if you'd like to squish the warning (I'll go ahead and check this in on the head of the CVS trunk):: diff -u -r1.3 zlib.c --- zlib.c 1997/08/07 18:21:15 1.3 +++ zlib.c 2000/04/17 19:59:19 @@ -58,7 +58,7 @@ "Can't allocate memory to compress data"); return NULL; } - zst.zalloc=(free_func)Z_NULL; + zst.zalloc=(alloc_func)Z_NULL; zst.zfree=(free_func)Z_NULL; zst.next_out=(Byte *)output; zst.next_in =(Byte *)input; -- ========================================================= Tres Seaver tseaver(a)digicool.com tseaver(a)palladion.com

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icon_for_meta_type on Zope.org
by Jason Spisak 17 Apr '00

17 Apr '00

Zope.org authors, Is the icon_for_meta_type() on the Search Results pages an external method? I'll bet it is. :) Is that code available. I have been trying to get the icon for a given it's meta_type without success and that would really help. All my best, -- Jason Spisak 444(a)hiretechs.com

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RE: [Zope-dev] Re: Zope hanging (poss. threads-related)
by Marcus Collins 17 Apr '00

17 Apr '00

> -----Original Message----- > From: Dr. Ross Lazarus [mailto:rossl@med.usyd.edu.au] > Sent: 17 April 2000 11:38 > To: zope-dev(a)zope.org > Subject: [Zope-dev] Re: Zope hanging (poss. threads-related) <snip> > I think it was worth the effort even though it didn't break anything - > one thing we really need is a reproducible way to make this problem > appear. As Amos has said, the problem may lie deep in the > bowels of the applications running on top of zserver. Given that there > was mention that freebsd installations seemed immune, we have the the > Linux thread libraries to content with as well as all the zope code > running at crash prone sites..anyone got this happening with an old > linux install? I only have access to redhat 6.1 I don't think us FreeBSD users are quite immune... So far, we've had reports of hanging/restarts/crashes on FreeBSD, Linux and Solaris. The three use vastly different thread libraries, so I don't think it's your thread libraries that are at fault. > I've added a comment to Marcus's wiki page for collecting data on this > problem - suggest anyone else with the problem does the > same...http://www.zope.org/Members/tseaver/Projects/HighlyAvai > lableZope/DiagnosingHangProblems Thanks for the feedback! Regards, -- Marcus

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