- Zope-Dev - Zope lists

DTML Multiplication
by John Fohrman 02 Dec '99

02 Dec '99

Hey Everyone: I'm having trouble doing some simple multiplication in DTML, specifically: <dtml-call "REQUEST.set('value', unitPrice[_['sequence-index']])"> <dtml-call "REQUEST.set('qty', quantity[_['sequence-index']])"> <dtml-call "REQUEST.set('totalCost', qty*value)"> It's the last line that causes the error. I've tried a number of things, such as converting the variables to floats, all with no success. I receive the following Zope Error: Error Type: TypeError Error Value: Illegal sequence repeat I appreciate any help. -- John

3 4

ZDiscussion bug
by Ross Boylan 02 Dec '99

02 Dec '99

This is another example of the problem I reported a couple weeks ago of being unable to post certain messages. I've got the latest ZDiscussions. It definitely seems to be specific to the content of the message, so I thought another example might help. The traceback appears below the message: In article <81vsqq$sv1$1(a)nnrp1.deja.com>, gregory_wonderwheel(a)my-deja.com wrote: > Well after struggles reminding me of the tasks of Hercules I've finally > penetrated into the member sanctum of deja.com. Congratulations. I completely agree that it's way too hard. Thanks for making the effort. By the way, your postings use your deja.com email address, so you may miss some replies unless you check your email there. When you post, you can make your regular email the return address. You can also set a preference so your regular email is the default. But hopefully this will all be history in a few days.... > > Now for PSA discussion::: However, I can't figure out what number 1 > means. What is a "council"? the problem with PSA is that I have never > had a clear road map. The "council" is the group which has authority to act on behalf of the PSA. At the moment, the entire membership is the council. When we're bigger, or when someone makes a motion, we can elect a council out of the membership. If we wanted, we could declare it the Pacifica Shadow Board :) > > I move we make PSA user friendly. > > Until PSA gets off this deja.com.trap we won't have any success. http://pacifica.joe.to/Zope/live is almost ready for the cutover. One of the items there is a summary of PSA actions and positions to date. http://pacifica.joe.to has our old-style stuff. > > Every post needs a hyperlink to directions. How to navigate in PSA. > Where new people are welcomed. > > The directions need to direct people to where the constitution and > bylaws are. > > I have stated elesewhere that the problem with the new PLU is that it > is autocratic and anti-democratic and the problem with PSA is that it > is too "democratic" having elections for one thing or another every > other week where it's too difficult to figure out what's being voted on > and what the ballots mean. > > I move we get focused on what the point of PSA is, instead of trying to > be too many things to too many people without being clear on any one > thing. See the summary of actions on the new site. And we've been simplifying the balloting procedure. > > What is the purpose of PSA? What *opportunity* does PSA provide > listeners that makes it something to join? Too sleepy to give a full response, but I'm fond of the "not one cent for Pacifica National Board" campaign. The purpose is to take back Pacifica. The opportunity is to pool resources, coordinate actions, and bring the board to heel by cutting off the funds it needs to fill its legal responsibilities of running a network. > > Stir it up. > > In article <81vhk0$lhe$1(a)nnrp1.deja.com>, > kathy288228(a)my-deja.com wrote: > > Discussion of the following proposed motions is scheduled from Nov. > > 28th through Saturday, December4. Voting on the motions will be from > > 12/5 through 12/11: > > > > RB21 (By-law) Quorum > > 1) If less than 30% of the total council membership, including those > > absent or abstaining, votes in favor of a proposal, the proposal fails > > 2)This resolution will not take effect unless 3/5 of those voting > > approve and 30% of the total membership approves > > (This is current operating procedure; a passing vote will make it a > by- > > law) > > > > HC1.7 > > PSA will give $25 to support Kahlil Jacobs-Fantauzzi, the only > > demonstrator at KPFA still facing court. The usual PSA provisions for > > active involvement apply. > > And here's the traceback: Zope Error Zope has encountered an error while publishing this resource. Error Type: TypeError Error Value: argument in_reply_to was ommitted ---------------------------------------------------------------------------- ---- 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. ---------------------------------------------------------------------------- ---- Pacifica Supporters Association Home Traceback (innermost last): File /web/main/src/Zope/lib/python/ZPublisher/Publish.py, line 214, in publish_module File /web/main/src/Zope/lib/python/ZPublisher/Publish.py, line 179, in publish File /web/main/src/Zope/lib/python/Zope/__init__.py, line 201, in zpublisher_exception_hook (Object: ElementWithAttributes) File /web/main/src/Zope/lib/python/ZPublisher/Publish.py, line 165, in publish File /web/main/src/Zope/lib/python/ZPublisher/mapply.py, line 160, in mapply (Object: ZDItem_add) File /web/main/src/Zope/lib/python/ZPublisher/Publish.py, line 102, in call_object (Object: ZDItem_add) File /web/main/src/Zope/lib/python/OFS/DTMLMethod.py, line 145, in __call__ (Object: ZDItem_add) File /web/main/src/Zope/lib/python/DocumentTemplate/DT_String.py, line 502, in __call__ (Object: ZDItem_add) File /web/main/src/Zope/lib/python/DocumentTemplate/DT_With.py, line 133, in render (Object: ZDItem.createInObjectManager(REQUEST['id'], REQUEST)) File /web/main/src/Zope/lib/python/DocumentTemplate/DT_Util.py, line 321, in eval (Object: ZDItem.createInObjectManager(REQUEST['id'], REQUEST)) File <string>, line 0, in ? File /web/main/src/Zope/lib/python/ZClasses/ZClass.py, line 419, in createInObjectManager (Object: ZDItem) File /web/main/src/Zope/lib/python/ZPublisher/mapply.py, line 155, in mapply (Object: ZDItem) File /web/main/src/Zope/lib/python/ZPublisher/mapply.py, line 93, in default_missing_name TypeError: (see above)

1 0

manage_editProperties??
by Jon Brisbin 01 Dec '99

01 Dec '99

I'd like to change my manage_editProperties method of my property sheets to maintain the currently set value of a variable if one doesn't exist in the REQUEST object...if one IS there, but is None, then I can wipe it out... The problem I'm having is wanting to update a single property value, without specifying all the values. I just want to increment one value and set it again...but when I do, it wipes all the other variables out because I don't set them in the REQUEST object... Is there an easy way to do this?? Thanks! Jon Brisbin

2 1

Copy & paste in folderish products
by Martijn Faassen 01 Dec '99

01 Dec '99

Hi there, As mentioned earlier on the list, I've written a Folderish product (ZFormulatorForm) to which objects can be added (objects with classes derived from a Field class). This works thanks to the Other Martijn, but copy & paste (as well as rename) does not. With more help from the Other Martijn I've tracked down the failure to line 360 of OFS/CopySupport.py: if hasattr(meth, '__roles__'): This hasattr fails (meth has no __roles__ attribute) as a result of which the method _verifyObjectPaste raises a CopyError exception. What is __roles__ supposed to do? I've tracked down 'meth' as the attribute of ZFormulatorForm that is used to add a field to the form, for instance: manage_addBasicFieldForm 'meth' itself isn't called, only the __roles__ attribute is checked, to perform a security check. My 'meth' is a special class of my own. This is due to some hackery to make the entire setup work to my liking; HTMLFile does not work (see another earlier post; it seems HTMLFile does now allow single .dtml file to be used in multiple ways; i.e. <dtml-var foo> will always evaluate to the latest definition of 'foo' in a HTMLFile construction). I suspect the __roles__ attribute might be defined in MethodObject.so. Should I start digging into the .c sources or am I on the wrong track? What is __roles__ supposed to contain? Another associated problem is that 'add <field meta_type>Fields' security fields are not added to the security screen of ZFormulatorForm. This may be due to my changing the meta_types attribute of ZFormulatorForm manually when registering fields with it. But I wouldn't think this would matter, as ZFormulatorForm is only registered with Zope *after* my meddling. But for some reason no security permissions for the adding of the fields are appearing... Perhaps this is also dependent on the mysterious __roles__ attribute of the manage_add methods? I really wish there were documented interfaces for the Zope sources at a time like this.. Regards, Martijn

1 1

sanity check needed for catalog bug(?)
by Anthony Baxter 01 Dec '99

01 Dec '99

I have a bunch of documents, in a bunch of folders, let's say they're set up like this: f1/help/documents f2/help/documents f3/help/documents f1, f2, and f3 each define a property that I want to store in the meta-data (and index) of the documents. Something in the change from CVS Version 1.42 to 1.43 of lib/python/Products/ZCatalog/Catalog.py made it so that for some of the entries, this property name is not getting put in the entries with the documents. Instead, I'm getting Missing.Value (when it comes out of the catalog). The problem is that the diff between the versions don't seem like they _should_ break things. I guess I'm just asking if anyone else has seen this as well, or is it just me. (How do I know it is this? cvs up -r1.42 Catalog.py, restart: works. cvs up -r1.43 Catalog.py, restart: broken again.) Yes, it's in the collector, but this is bugging me... Anthony

1 0

another data point for dcoracle crashes.
by Anthony Baxter 01 Dec '99

01 Dec '99

today, a table that gets hit a lot ran out of space when we were in the middle of moderately heavy testing. We started getting: Error Type: oci.error Error Value: (1043, 'ORA-01043: user side memory corruption [], [], [], []\012', "SELECT d.name as name,\012 d.value as value\012 FROM Session_data d, Sessions s\012WHERE \012s.session_name = 'mbC5HGphnQvCdFa/yKfXYg'\012AND\012s.session_id = d.session_id \012AND d.name = '__sessac'") followed by the DCOracle cursors being unusable. Is it possible that there's either a bug in the code in DCOracle that handles errors that isn't multithread safe? Or in the Oracle client libs? The above error means that the area of memory for the cursor/host bit in the client application got stomped. This is on Redhat Linux 5.2, Oracle 8.0.5.0.0 Anthony

1 0

Server push and Zope
by Andrew M. Kuchling 01 Dec '99

01 Dec '99

Has anyone written ExternalMethods or DTML pages that do server push? It was probably impossible with Zope1 because of the single thread, but with Zope2 it might be possible to start a new subthread to service each push-receiving client. Why do I care about a Netscape-only extension/hack like server push? Because of http://www.mems-exchange.org/exchange/software/microscope/web-login.html (use the INM200 if you try it out), which uses a Java servlet to provide a Web-based microscope interface. Zope would probably have enough flexibility to make this interface less hopelessly lame. -- A.M. Kuchling http://starship.python.net/crew/amk/ Scientia sine arte nihil est; ars sine scientia nihil est. -- Author Unknown

2 1

gadfly embedded newlines Re: SQLSession help needed!
by Aaron Watters 30 Nov '99

30 Nov '99

Anthony Baxter has mentioned a number of times that gadfly barfs on strings with embedded newlines. There is a one line patch to this. In sqlgen.py replace charstre = "'[^\n']*'" with charstre = "'[^']*'" Sorry! -- Aaron Watters (and please bring up other issue like this on the gadfly-rdbms list at egroups.com)

1 0

RE: [Zope-dev] ZOPE and my domain
by Rob Page 30 Nov '99

30 Nov '99

Well, I'll take a stab at this... > I am now in a position where I need essentially an application server. Zope is one of those! > It is essentially a work flow automation system that during the course > of the work flow we must pull data from various disparate > data sources, publish data to other data sources and update several flat > file systems and wrap the whole shooting match inside of a transaction or > as much of it as we can!!! > <snip> > Option four: Install ZOPE coupled with Apache or possibly the built in > ZOPE web server. Here I am confused as to whether Zope can do the > transaction management. > Con: Don't know if it will provide the functionality I require!! > > Can Zope coupled with Apache and Python do what I need? Zope has a rather strong notion of transactions. Significantly, the boundaries of transactions on the ZODB and the RDBMS are aligned. In other words, a failure on either the ZODB leg or the RDBMS leg of a particular transaction will either both succeed or both fail (i.e., be rolled back). This leverages existing and robust transaction support in each of these persistence mechanisms (i.e., the ZODB and the RDBMS). Most file systems (journaling file systems excepted) do not have the notion of a transaction. It would be the updates to flat files that would hard (impossible?) to incorporate into Zope's transactions. It's therefore hard to use the word transaction in this context since transaction, imo, implies many things that the file system is unlikely to provide. This is an architectural issue which other app servers are equally unlikely to support. HTH, --Rob

1 0

RE: [Zope-dev] Re: Exposing COM via XML-RPC or Something Else
by Michel Pelletier 30 Nov '99

30 Nov '99

> -----Original Message----- > From: Thomas Heller [mailto:thomas.heller@ion-tof.com] > Sent: Tuesday, November 30, 1999 2:52 PM > To: Brian Lloyd; 'Edward Muller'; python-list(a)python.org > Cc: zope-dev(a)zope.org > Subject: [Zope-dev] Re: Exposing COM via XML-RPC or Something Else > > > > You might want to take a look at MS' SOAP (Simple Object Access > > Protocol) spec - it's not fully baked yet, but it basically takes > > xml-rpc several steps further, allowing you to communicate with > > SOAP-enabled objects (COM or otherwise) using XML over HTTP. We in > > Zope-land are keeping a close eye on this, as publishing objects > > via HTTP is the core idea of Zope already. > > Zope and SOAP sounds very similar. > Is this by accident? Yup -Michel

1 0