Re: [Zope-dev] DTML tag creation.
Bill Anderson wrote: I am about to dive into a custom tag, it will be a 'container' tag. I have seen the HowTo, and it really isn't that clear when you get to the container tag info. Can anyone provide a better rundown? Anyone have a custom tag they would mind sharing for perusal? Just trying to save myself sometime. Not a container tag, but check out http://www.zope.org/Members/noa/SpellChecker - me and Noa wrote this a while back. A spellchecker interface written in DTML is not a pretty sight, but you do learn DTML really quickly :) -- Itamar S.T. [EMAIL PROTECTED] ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] ZCVS Mixin class... feedback sought.
Hi Jonothan, Thanks for the thoughts "Jonothan" == Jonothan Farr [EMAIL PROTECTED] writes: Good questions! You can just go to the 'admin' tab and type 'diff'. The admin tab lets you execute just about any cvs command with arguments stat, rtag etc etc. Jonothan Doing a diff on a zexp file isn't going to be very Jonothan helpful, though. Any thoughts on integrating some sort Jonothan of xml diff tool? Not as bad as you might think... http://cvs.spvi.com/cgi-bin/viewcvs.cgi/zopeObjs/testCVS/foobie.xml.diff?r1=texttr1=1.1r2=texttr2=1.2diff_format=h having said that and xml diff tool would be cool as well. I know little/nothing about what's out there. The other problem is that Zope appears to choose id values for pickles embedded in these xml files that are essentially random. I don't know enough about the implementation (time to look?) to know why they choose the ids they choose... but it would be nice for this reason if they were always, (usually), consistent. You also get things like this: http://cvs.spvi.com/cgi-bin/viewcvs.cgi/zopeObjs/testCVS/foo.xml.diff?r1=texttr1=1.4r2=texttr2=1.5diff_format=h Conflicts.. uh... bad news. ;-) I think it's essentially impossible to 'merge' two different versions of a zope object... so my plan would be to pick one version, or the other. I forgot to mention that you have all the power of CVS to handle the notion of 'watching' and 'editing'. I'm not a cvs expert.. but I think there are some cvs features that can help here... Login and logout are handled when you set up the directory on the filesystem. Basically you need to 'checkout' a module (maybe an empty module) into a directory on the filesystem before you can use it to keep the xml representations of your Zope objects. That checkout, might, or might not, require a login, depending on your CVSROOT. You must 'be' the zope user (the same user that the zope process runs as) when you checkout the module, so that zope can manage the contents. Jonothan So essentially all checkins are by the same cvs user, so Jonothan you lose the ability to track accountability? I'd like Jonothan to see something that was on a per-user basis, maybe Jonothan tied to the zope user, maybe not. No.. that's not quite right. CVS has several ways to handle the concept of 'ownership'. If you are using pserver authentication for example, you can be user x, but authenticate with cvs as user y. So, to make this work Joe would have his branch and mary could have her branch in different ZCVSMixin folders within the same zope instance. However, for development I think it's probably not uncommon that individual zope developers might have their own zope instance. With a ZCVS Mixin folder they could work on completely seprarate instances and still stay 'synced', much the same way developers use cvs to stay synced with 'c' code now. Jonothan There's been a ton of talk about a zope cvs Jonothan product. I've been thinking about giving it a shot for a Jonothan while now. I'm excited to see someone actually doing Jonothan something about it. I'd be glad to help out however I Jonothan can. Especially since now you've taken the killer Jonothan name. ;) I haven't heard much of the talk, since I have been too busy to keep up with the list, but I am interested in ideas. Also.. I'm 72% sure that someone else can come up with a much better name! ;-) thanks, -steve Jonothan --jfarr ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] FWIW, ZCVSMixin now at 0.0.2... and rising. ;-)
Hi Michael, I need to put some verbage in the README about setting up the workspace on the filesystem to work with ZCVSMixin. No time like the present! ;-) Before you begin, you need to set up a cvs repository somewhere. This is described pretty well in the cvs reference: http://www.loria.fr/cgi-bin/molli/wilma.cgi/doc.847210383.html After that is done and you set your CVSROOT environment variable to match that repository, you can setup your module for zope objects... Basically you must first become the same user that runs as the zope process. If this is a totally new project you will need to create a module in cvs. I usually do this with 'cvs import'.. like this: -- mkdir foo cd foo cvs import -m "start new project" zopeObjs/foo steve start No conflicts created by this import -- Now, go to the place on your filesystem where you want to keep your 'live' zope objects. This might be called your active workspace. I might do it like this: mkdir workspace cd workspace cvs co zopeObjs/foo cvs checkout: Updating zopeObjs/foo cd zopeObjs/foo pwd /usr/home/steve/workspace/zopeObjs/foo this is the path you would enter in the ZCVS Folder as the 'fsdir' parameter. Now you can manage the contents of this folder in Zope, or on the command line. The Zope stuff doesn't handle subdirectories at the moment.. we can add that as soon as we have a sane way of making that work! ;-) Good Luck! -steve "Michael" == Michael Bernstein [EMAIL PROTECTED] writes: Michael Steve Spicklemire wrote: I've not heard any comments about the usefulness of this concept... am I barking up the wrong tree to get version control of zope objects? Does someone know of a better way? Michael Steve, this has been my fondest hope for about three Michael months now. Now, if I could also get it to do Michael through-the-web XML (DocBook) editing and rendering, I'd Michael have a complete end-to-end document management Michael system. Particularly if it preserved accountability, like Michael Jonothan was mentioning. Michael I'll be testing this tommorow, and doing my best to get Michael this to do unnatural things with XMLWidgets and Michael DocBookDocument. Michael Many thanks, Michael Michael Bernstein. ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] zpatterns: rackmountables must be of-wrapped
At 01:56 PM 5/25/00 +0400, Jephte CLAIN wrote: When I don't wrap items like this, I get strange unauthorized errors. Only the super user can use the items. All the other users (Managers or not) can't. In normal usage, one only accesses a rack from or in a Specialist. Specialists wrap the objects in the context of the specialist for you. I've just checked the code, however, and notice that Specialist.__bobo_traverse__ does this wrapping, not Specialist.getItem, so I will fix this in the next release. That way, calling getItem on the Specialist will ensure you have proper context. Patch follows... Index: Specialists.py === RCS file: /u/idsuser/REPOSITORY/ZProducts/ZPatterns/Specialists.py,v retrieving revision 1.7 diff -u -r1.7 Specialists.py --- Specialists.py 2000/05/18 05:24:49 1.7 +++ Specialists.py 2000/05/25 12:57:35 @@ -1,7 +1,6 @@ from PlugIns import PlugInGroup from DataManagers import DataManager from Globals import HTMLFile, default__class_init__ - _marker = [] @@ -23,7 +22,7 @@ if ob is _marker: ob = self.getItem(name) if ob is not None: -return getattr(ob,'aq_base',ob).__of__(self) +return ob raise 'NotFound' return ob @@ -32,7 +31,8 @@ return self.retrieveItem(key) # XXX need DTML check? for rack in self.rackList: item = rack.__of__(self).getItem(key) -if item is not None: return item +if item is not None: +return getattr(item,'aq_base',item).__of__(self) def newItem(self, key=None): """Create a new item""" ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] Observer / Notification Interface Proposal
At 12:45 AM 5/25/00 -0400, Tres Seaver wrote: Ah, ok -- I was planning simply to leverage the ZODB's facilities for maintaining persistent references in the DefaultObservable mix-in; more elaborate schemes would be possible (for instance to support rack-mounted observers?) Actually, just using a plain reference might cause you some problems. If you don't strip off the acquisition wrapper, you'll pickle the entire acquisition tree for the subscriber, including the REQUEST and RESPONSE objects. But if you *do* strip off the wrapper, you'll call the observer without its acquisition context, causing security and possibly other problems. I would suggest using object paths, ala ZCatalog, since this fixes these problems as well as cross-database and outside-the-ZODB references. Also, it takes care of being able to pass Python-level methods as observers, since you can't pickle a direct reference to a method. The references don't have to be de-referenced unless an event actually occurs, although the high cost of de-referencing objects (even without using a path) does suggest to me that observers should at least register some kind of channel name or list of names, to prevent needless reactivations. Unless, of course, the idea is for "subjects" to not subclass Observable directly, but rather to have various "event" subobjects which are callable observables. Calling an "event" object could fire it, relaying the event to the subscribers, who would subscribe to the individual event sub-object, rather than to the main "subject" object. An interesting side-effect of this approach is that it allows one to create a subclass of "event" that can be added to any ObjectManager subclass. One could also create another subclass of event as a methoid for use in class/ZClass definitions. This subclass would store its subscription data in its parent object, allowing the event object itself to be shared across instances of the class. Still another interesting possibility is the idea that event objects could define their own calling parameters, and optionally relay those to the observers, which would allow a more interesting dataflow. In the work I've been doing on my SWARM project, workflow Plan objects have a collection of Event objects which were planned to work similarly to this, but a bit more complex. Event objects were going to have Properties, and Plans also had "Roles" (relationships to a workflow instance) which effectively were the subscribers of the events. Role objects receive all event firings, and selectively forward or transform them for their "audience" (the objects in that relationship to the workflow instance). Plans and Phases could also have Forms which were effectively input forms for the properties of an Event. Last, but not least, calling the Event object with property data would create an "event instance" object which would have methods for such things as "don't process this event further", and which would contain all the data for that firing. All that is probably overkill for this interface, but the basic idea of callable "event" sub-objects which are subscribed to by observers is I think a useful pattern to apply here. ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] Observer / Notification Interface Proposal
Michel Pelletier [EMAIL PROTECTED] wrote: I'll do both, this is absolutely a desperately needed feature in the ZCatalog. Currently, Cataloged items must take responsibility for notifying a catalog of their changes instead of the ZCatalog observing them. Amos and I talked about this over Pizza a couple weeks ago but we were thinking from a pretty Catalogcentric view; or at least I was. I was considering an interface like the new Security API that could be imported in python and used to discover and notify catalogs of object changes. But this now seems to me to be some kind of pattern where objects need to discover an appropriate or canonical resource, like a catalog. This interface should be defined also, so that newly-born objects can notify a resources of their existence. I've added this to the InterfacesWiki http://www.zope.org/Members/michel/Projects/Interfaces/Discovery Thoughts on how they relate? Are they the same thing? I think this pattern is orthagonal to the ObserverAndNotification pattern, but is crucial to making things like TheClassFormerlyKnownAsCatalogAware and Ken's new WikiRelationship object work. CORBA solves this by mandating that the ORB provide a lookup method:: def resolve_initial_references( resource_type ): where resource_type is a well-known string like 'NamingService', etc. In our case, perhaps it needs to be:: def findNearestResource( meta_type ): which causes a walk up the containment hierarchy, searching for objects of the given meta_type. Tres. -- = Tres Seaver [EMAIL PROTECTED] Digital Creations "Zope Dealers" http://www.zope.org ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
[Zope-dev] zpatterns: win32 dll for DynPersist?
Hello, Has someone compiled the DynPersist dll for win32? if someone has done so, it would be glad to send me a copy by tomorrow. it will help me greatly. TIA, jephte clain [EMAIL PROTECTED] ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] Observer / Notification Interface Proposal
Evan Simpson wrote: This exists! (sort of). ObjectManager.superValues accepts a list of meta_types, and returns a list of all objects of those meta_types which can be found in any ObjectManager in the current one's acquisition context. and has done for ages... the original Squishdot code uses this to find appropriate mailhosts and I'd be suprised if ZSQL methods didn't do the same to find databse connections... cheers, Chris ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] Re: ZCatalog and Unique IDs
Evan Simpson wrote: In the case of Catalogs, much of the time we're probably not interested in cataloging "whatever lives at this path address"; At the moment this is true, but Jim and I have discussed the possibility of ZCatalog being treating the paths less atomically and more as a sequence of nodes from root to the target, this way, you could ask the catalog for all objects below a certain point that match search criteria, etc. we want information about a specific object. Fortunately, the cut/copy/paste and rename implementations make the path approach workable. As a matter of fact, the new mountable database code required changing the clipboard operations to use paths instead of object monikers. And it looks like the event stuff is favoring paths also, I strongly suggest we make sure any of these needs is captured in the proposed traversal interface: http://www.zope.org/Members/michel/Projects/Interfaces/Traversal -- -Michel Pelletier http://www.zope.org/Members/michel/MyWiki Visit WikiCentral for the latest Zen: http://www.zope.org/Members/WikiCentral ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] Observer / Notification Interface Proposal
Michel Pelletier wrote: There allready exists such a thing, superValues([meta_type]). But I think this is too weak to use as a discovery protocol. An observable may not know or care what type of observer it wants to discover. Also, when it finds a number of various resources, catalogs lets say, does it just notify them all? Is there a concept of a default? Can they negotiate? Can this be limited by security? Take our Free Zope server, we don't want something to discover everyone else's ZCatalog's What about non-security related? There may be similar instances where you don't want to discover anything other than a specific catalog... Also, can an observer that gets notified during discovery just turn around and so 'no, I don't want to do anything with your notification'? cheers, Chris ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] Re: ZCatalog and Unique IDs
Michel Pelletier wrote: At the moment this is true, but Jim and I have discussed the possibility of ZCatalog being treating the paths less atomically and more as a sequence of nodes from root to the target, this way, you could ask the catalog for all objects below a certain point that match search criteria, etc. Okay, now it starts to make sense... And I agree that the traversal stuff needs to handle this properly... My take on it is this: The URL is not the same as the path to the object. The path to the object should be unique, and always rooted at Zope's root, I don't think the Traversal Interface is strong enough on this point yet... Mapped to this path could be any number of ways of accessing/exposing objects which don't necessarily start at Zope's root. Take HTTP access through apache virtual hosting for example. Or exposing a sub-tree as files through FTP or WebDAV. Is this true or am I missing something? cheers, Chris ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] Re: ZCatalog and Unique IDs
- Original Message - From: Chris Withers [EMAIL PROTECTED] who's the CTO? Jim Fulton, Chief Technology Officer. use paths instead of object monikers. Why not do both? Have an POID (CORBA style) to actually identify an object and then use paths of POIDS to identify stuff in a cotnext *when you need to*... comments? A man with one watch knows what time it is; A man with two is never sure. That may not be a problem in this case, but I have a sneaking suspicion it would be. Still, if you can demonstrate that can be valuable and coherent, it could probably be done. Cheers, Evan @ digicool 4-am ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
[Zope-dev] Proposed change in the authentication
I propose to change the order which a vacation in URL traversal or performed. See and comment at: http://www.zope.org/Members/jim/ZopeSecurity/ProposalToAuthenticateDuringURLTraversal Jim -- Jim Fulton mailto:[EMAIL PROTECTED] Technical Director (888) 344-4332 Python Powered! Digital Creationshttp://www.digicool.com http://www.python.org Under US Code Title 47, Sec.227(b)(1)(C), Sec.227(a)(2)(B) This email address may not be added to any commercial mail list with out my permission. Violation of my privacy with advertising or SPAM will result in a suit for a MINIMUM of $500 damages/incident, $1500 for repeats. ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
RE: [Zope-dev] another validation problem
The latest CVS version is giving autorization demands (and failures) with this DTMLmethod. This kind of construct used to work fine. dtml-var standard_html_header h2dtml-var title_or_id dtml-var document_title/h2 p dtml-with "_.namespace(SUB=[1,2])" dtml-if "_.len(SUB)0"non-emptydtml-elseempty/dtml-if /dtml-with /p dtml-var standard_html_footer Perhaps newly created names in the _ namespace do not get understood by the new security guts. Hi guys - I _just_ checked in a fix for this. A piece of the namespace machinery was not updated in the required way to play nice with the new infrastructure. I've included the reply I made to the bug report: Thanks for the report - I've tracked this down to a bit of the DTML rendering machinery that didn't get updated to play nice with the new security infrastructure. Any DTML that tried to use subobjects of an object associated with a name via a namespace would fail validation. The manage_tabs happened to do this. I've fixed this for 2.2. In the meantime, if you want to patch your current installation, you can make a one-line change to DocumentTemplate/DT_Util.py. At line 254, change: class namespace_: pass to: class namespace_: __allow_access_to_unprotected_subobjects__=1 Brian Lloyd[EMAIL PROTECTED] Software Engineer 540.371.6909 Digital Creations http://www.digicool.com ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] Proposed change in the authentication
Jim Fulton wrote: http://www.zope.org/Members/jim/ZopeSecurity/ProposalToAuthenticateDuringURLTraversal I wonder whether this would fix the following problem: http://zope.nipltd.com/public/lists/dev-archive.nsf/ByKey/82AE22A20C7E88AE What I reckon is happening is that HTTP is being dumb and presenting the authentication information for the image 'black'. Black knows nothing about this user (because it's defined in a subfolder) and so throws an authentication exception, ignoring the fact that _anyone_ should be able to view this image... Ideas anyone? cheers. Chris ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
[Zope-dev] Ending up with a wrapped object through the web?
I'm trying to import KM|Net News into the latest Zope CVS. I am unable to
import the .zexp or XML files into the latest (tracebacks at the end).
When importing the .zexp, I get an "Attempt to store a wrapped persistent
object" error. This is really puzzling, because I'm not sure how a
completely through-the-web Product would have a wrapped object stored in it.
I tried removing the PythonMethods to see if they were stored in an unusual
way, and this did not change the behavior...
Does anyone have any ideas about this? It's very odd and could be a major
nuisance for people who are trying to move things between 2.1.x and 2.2...
Kevin
The .zexp gives this error:
STRONGError Type: InvalidObjectReference/STRONGBR
STRONGError Value: Attempt to store a wrapped persistent
object/STRONGBR
Traceback (innermost last):
File /home/kid/Zope2/lib/python/ZPublisher/Publish.py, line 224, in
publish_module
File /home/kid/Zope2/lib/python/ZPublisher/Publish.py, line 189, in
publish
File /home/kid/Zope2/lib/python/Zope/__init__.py, line 221, in
zpublisher_exception_hook
(Object: ElementWithAttributes)
File /home/kid/Zope2/lib/python/ZPublisher/Publish.py, line 179, in
publish
File /home/kid/Zope2/lib/python/ZODB/Transaction.py, line 237, in commit
File /home/kid/Zope2/lib/python/ZODB/Connection.py, line 347, in commit
(Info: (('OFS.Application', 'Application'),
'\000\000\000\000\000\000\000\002', ''))
InvalidObjectReference: (see above)
The XML generated by 2.1.6 gives this error:
STRONGError Type: TypeError/STRONGBR
STRONGError Value: ('not enough arguments; expected 2, got 1',
extension class ZClasses.Method.MW at 834bc68, ())/STRONGBR
Traceback (innermost last):
File /home/kid/Zope2/lib/python/ZPublisher/Publish.py, line 224, in
publish_module
File /home/kid/Zope2/lib/python/ZPublisher/Publish.py, line 189, in
publish
File /home/kid/Zope2/lib/python/Zope/__init__.py, line 221, in
zpublisher_exception_hook
(Object: ElementWithAttributes)
File /home/kid/Zope2/lib/python/ZPublisher/Publish.py, line 175, in
publish
File /home/kid/Zope2/lib/python/ZPublisher/mapply.py, line 160, in mapply
(Object: manage_importObject)
File /home/kid/Zope2/lib/python/ZPublisher/Publish.py, line 112, in
call_object
(Object: manage_importObject)
File /home/kid/Zope2/lib/python/OFS/ObjectManager.py, line 506, in
manage_importObject
(Object: ElementWithAttributes)
File /home/kid/Zope2/lib/python/ZODB/ExportImport.py, line 216, in
importFile
File /home/kid/Zope2/lib/python/ZODB/ExportImport.py, line 318, in
importXML
File /home/kid/Zope2/lib/python/ZODB/ExportImport.py, line 283, in
importFile
TypeError: (see above)
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[Zope-dev] Re: Proposed change in the authentication
Jim Fulton wrote: I propose to change the order which a vacation in URL traversal or performed. See Sorry, I meant "authentication", not "a vacation". :) and comment at: http://www.zope.org/Members/jim/ZopeSecurity/ProposalToAuthenticateDuringURLTraversal Jim -- Jim Fulton mailto:[EMAIL PROTECTED] Technical Director (888) 344-4332 Python Powered! Digital Creationshttp://www.digicool.com http://www.python.org Under US Code Title 47, Sec.227(b)(1)(C), Sec.227(a)(2)(B) This email address may not be added to any commercial mail list with out my permission. Violation of my privacy with advertising or SPAM will result in a suit for a MINIMUM of $500 damages/incident, $1500 for repeats. ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
[Zope-dev] ZSQL Methods
Using ZSQLMethods against an ORACLE 8.0.6 Database. I have two tables, each with a NUMBER(6) key field. If I create a method which selects against each of the tables then method returns an integer (e.g. 5040), as expected. select index_number from names where name = 'name' or select index_number from aliases where alias = 'name' If I attempt to get the combined list select index_number from names where name = 'name' union select index_number from aliases where alias = 'name' I get a float back (e.g. 5040.0). Is this expected/correct? If so how do I force it to return the integer. David Cooper [EMAIL PROTECTED] ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] Proposed change in the authentication
In article [EMAIL PROTECTED], Jim Fulton [EMAIL PROTECTED] wrote: I propose to change the order which a vacation in URL traversal or Good idea, we could all use a vacation :-) performed. See and comment at: http://www.zope.org/Members/jim/ZopeSecurity/ProposalToAuthenticateDuringURLTraversal To clarify, do you mean that authentication will be done at *every* user folder found along the way, or at the first one found, or attempted at each one until one succeeds, so long as anonymous still has permission to continue walking down, or what? ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] another validation problem
In article [EMAIL PROTECTED], Michel Pelletier [EMAIL PROTECTED] writes ... Does it work if you: dtml-with "_(SUB=[1,2])" ... /dtml-with and call the namespace directly? The two are supposed to be synonymous but your method is depricated so perhaps it works the other way, if not, I'd suggest putting this in the collector for us to fix before the next release. ... nope this fails as well. -- Robin Becker ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
Re: [Zope-dev] Resource Discovery (was Observer / Notification Interface Proposal) Proposal)
At 10:03 AM 5/26/00 +1000, Anthony Baxter wrote: "Phillip J. Eby" wrote I would suggest that it ask for an interface, rather than a meta_type. Otherwise, you've hardwired yourself into a single object type with no extensibility. For example, an SQL method wants the nearest SQL connection, but shouldn't have to explicitly ask for each kind of SQL connection (Sybase, Oracle, etc.) In that case, would you have a matching call in the observer objects where they can specify what it is that they offer? Rather than basing it on type, you'd say 'find the nearest resource that wants to know about blah'. I would say that resource discovery is orthogonal to event subscription, and that if you were discovering resources for the purpose of sending them events, you should search for an interface that lets you query whether that object wants to receive events. :) In practice, however, doing resource discovery for event subscriptions is backwards. If you have a Catalog or some other thing that wants to subscribe to events below it, it should subscribe to events from containers to know when things are added, (including sub-containers, which it could also subscribe itself to) then subscribe to the objects themselves whenever it's notified of an add. Having "catalog aware" objects look for a catalog doesn't make sense in the context of an event-driven system. Objects need only generate change events, and containers need only generate add/delete events. The rest can be done by the Catalog or other observer. Notice, by the way, that a Catalog that worked this way would be extremely flexible; you could specify persistent rules for what kinds of objects would be "found into" the Catalog, and you could dynamically add/remove the catalog's hooks from various folders, "pruning" its "search" scope. The catalog itself would hold no references to the objects which send it events, but could wander far and wide over the database. At this point it's really tempting to take a whack at adding an event system to ZPatterns based on the models discussed so far, except for the fact that I'm rather behind on getting its more modest event management system finished, *and* the fact that Zope doesn't really have a robust traversal interface at the moment. If 2.2 ends up with a solid traversal system, I will certainly be willing to take a look at it. One interesting interplay between ZPatterns events and Zope events, is that ZPatterns triggers (aka RuleAgents) could be used to set up rules which fire events on managed objects. This would allow one to wrap custom events and subscriptions around any DataSkin-based object instance, without the skin's class having to have been designed to send those events. An interesting idea, indeed. ___ Zope-Dev maillist - [EMAIL PROTECTED] 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 )
