September 1999 - Zope

Re: [Zope] Simpleton requests help - what's this mapping malarkey ?:)
by Kevin Dangoor 20 Sep '99

20 Sep '99

-----Original Message----- From: chas <panda(a)skinnyhippo.com> To: Kevin Dangoor <kid(a)kendermedia.com>; zope(a)zope.org <zope(a)zope.org> Date: Sunday, September 19, 1999 6:27 PM Subject: Re: [Zope] Simpleton requests help - what's this mapping malarkey ?:) >Consider a product MyProduct : > >/MyProduct > /MyClass > /index_html > /method2 > /MyClass_add_permission > /MyClass_factory > /MyClass_add > /MyClass_addForm > >To add permissions to let method2 change properties : >1) add a Zope Permission to the MyProduct folder. Let's call it >"MyPermission" >2) go to MyClass and click on the "Permissions" tab. >3) select "MyPermission" from the multiple select list. This is > saying 'any instances of this product have the permission MyPermission'. > This seems to be very much like a role. I think it is more like saying "this permission is relevant to this ZClass". >4) go to MyClass and then click on the "Define permissions" tab. >5) opposite the "Manage Properties" label, select the "MyPermission" > ie. allow any instances of the class to manage the properties. > >However, I seem to have missed something since nowhere did we specify >*who* has this permission. (eg. anonymous users, or just managers.). >Damn, I feel dense. Not at all... What you've done to this point is create a permission, and tell Zope that the user must have that particular permission in order to manage the properties. Here's the next part: 6) Go to the Zope root and look at the Security tab. From there, you can define which roles have "MyPermission" set. *Now* Zope knows that a user must belong to one of the roles that has "MyPermission" set in order to manage properties. >Actually, I'd have really liked it if there were a security tab on the >zclass (not the instance) - but I notice that there are no security tabs >there.... only these wonderful "define permission" pages. Wait, perhaps >that's a clue - why *aren't* there "security" tabs in zclasses ? I mean, >for something as simple as setting "anonymous user can manage properties", >a standard security tab would have done the job fine. I think the idea is that security is more of an "instance" related thing. At the class level, you define which permissions are necessary to take given actions. In the actual instances, you define which roles have those permissions. (And the roles->permissions mapping is something that can be acquired). This is basically how the standard Zope objects work, and the ZClasses are consistent with that. >Half way .... and your help is much appreciated. > >Do you remember at school there was that annoying kid who stuck his >hand up, asked a question, the teacher replied, yet still he didn't >understand ? I'm that kid :) Nahh.. I kinda felt like I had given a halfway sort of answer. But, I wasn't certain where to take it next... Kevin

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Confera "expand all" functionality?
by Jim Harrison 20 Sep '99

20 Sep '99

I'm working with Confera and Zope 2. I'd like to add an "expand all" link to the main message list page, a question that's been raised before on this list. Based on the DTML guide and responses to the previous question, I've tried adding ?expand-all=1 or ?expand_all=1 to the URL for the index page of the Confera topic. This doesn't affect the status of the display. I've also tried setting expand-all from within the dtml of the index page without success. The person who sent the previous question ultimately gave up without success and I'd like to avoid that fate. I'd really appreciate it if someone could comment on how to manage the display status of the Confera message list. Jim Harrison ________________________________________________________________________ James H. Harrison, Jr., MD, PhD Associate Director of Pathology Informatics, Department of Pathology Faculty Member in Residence, Center for Biomedical Informatics University of Pittsburgh Health System C920 PUH, 200 Lothrop Street Pittsburgh, PA 15213 jhrsn(a)pop.pitt.edu | voice: 412-647-5529 | fax: 412-647-9588 "If you want sense, you'll have to make it yourself!!"-Norton Juster ________________________________________________________________________

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Clarifying ZCatalog-aware update conditions
by Chris Fassnacht 20 Sep '99

20 Sep '99

I'm currently trying to troubleshoot some problems with ZCatalog-aware objects not automatically updating the catalog. But before I go too much further, I realized that I need to get a clearer idea of the terms and conditions involved in the process. Could ZCatalog gurus verify my assumptions below? All of the following assumes an object which inherits first from _ZClass_for_CatalogAware. If I understand correctly, the catalog will automatically reflect any changes after the following processes: - Adding an object. - Deleting an object (but not if you delete the folder which contains the object (but what if the object IS a folder?)). - Changing the properties of an object (but if done with a custom property sheet, must use the reindex_object command). I'm confused about the reflected changes, however, because there seems to be two distinct operations in the catalog that may or may not be part of the automatic updating process: - Indexing the object (locates the object(s) and gathers all the relevant index information). - Updating the catalog (adds the relevant index information to the catalog). Okay. What is actually happening in my application is that when I add one of my ZClass objects (inherits from _ZClass_for_CatalogAware and _ZClass_for_Folder, in that order), my catalog does NOT automatically reflect the addition. And clicking "Update Catalog" in the management screen doesn't find it either. However, if I manually tell it to scan everything and find objects to catalog, it finds it just fine. Now, if I then change an indexed property for that object, the change is NOT automatically reflected in the catalog. But if I click "Update Catalog," the change then appears. And this occurs for properties for which I've added a reindex_object command to its manage_editProperties method. So, basically, it seems to me like I'm not getting what I would consider automatic object indexing happening. However, I am very open to input from more knowlegdeable ZoPros on my understanding of ZCatalog. Thanks. Chris Fassnacht

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Confera "regs" error
by Chris Fassnacht 20 Sep '99

20 Sep '99

When attempting to add a reply to a message in a Confera topic, I keep getting an AttributeError with an Error Value: regs. I've tried versions 1.2.0, 1.3.1, and 1.3.2 under Zope 2.0. No luck. Any suggestions of what I'm doing wrong? Thanks. Chris

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Passing the current date to an SQL query
by Peter Whysall 20 Sep '99

20 Sep '99

What's the best way of doing this? I'm struggling to find any mention of the *current* date in the documentation; I've looked in the Zope DTML User's Guide and the Zope SQL Methods User's Guide. regards Peter.

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Re: [Zope] Confused about "configuration objects" in ZCMG
by Kevin Dangoor 20 Sep '99

20 Sep '99

-----Original Message----- From: Martijn Pieters <mj(a)antraciet.nl> To: Kuraiken <arashi1(a)pd.jaring.my>; ML - Zope <zope(a)zope.org> Date: Monday, September 20, 1999 5:27 AM Subject: Re: [Zope] Confused about "configuration objects" in ZCMG >At 08:45 20/09/99 , Kuraiken wrote: >>Hello all, >> >>I've been virtually tearing my hair out trying to figure out product >>distributions. >> >>I've made distros of some products (with zclasses) and when I've installed it >>onto the new/target zopesite, the product does not work. I cannot add the >>objects from the product. (that is, I cannot create instances of the >>classes in >>the product - they do not appear in the "Add List". On the original site - >>where >>the product package icon is "open", I can add the objects.) > >Distributed products are non-editable. You should be able to add instances >of your ZClasses to Zope everywhere else. For some reason, this hasn't worked for me. When I've tried to make KM|Net News a "distributed" Product, it does not show up in the add list. That is why my solution for distribution thus far has been to export it and have people import the Product (this also has the added bonus of allowing people to tinker with the code). Kevin

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Zope Bug Collector
by Steve Jibson 20 Sep '99

20 Sep '99

I've been looking for some simple web-based bug tracking software. I considered writing something in Zope, but then I realized that the "Collector" (used to gather bug info on the zope web site -- http://www.zope.org:8080/Collector) is pretty close to what I need. Is it available as a Zope add-on?

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Docs update
by Rob Page 20 Sep '99

20 Sep '99

Oops -- pulled the trigger too soon... Here's a more complete version.... Sorry for the double-tap. --------------------------------- Hello everyone: Just wanted to give everyone an update on our documentation effort. First, I am pleasantly flabbergasted at the number, variety and depth of the How-Tos contributed by the community! It's clear that the new Zope site (specifically, Member self-publishing) will go a long way toward helping the documentation effort. The past several weeks have certainly been busy. In the middle of everything else, we've been working on documentation. Specifically, the New and Improved DTML User Reference is online: http://www.zope.org/Documentation This is a part of the "core documentation overhaul" on which we're working. Unfortunately, we are a little behind on this effort (originally forecast for release 9/15/1999). We (obviously) didn't make that milestone. However, I have it from reliable sources that we should have the remaining (promised) documents published no later Friday (with some making earlier debuts). Remember that (for now at least :^), we've defined the core docs (and 'revised' projected availability) are: o Zope Administrator's Guide: 9/25 o Zope Content Manager's Guide: 9/22 o Zope Content Manager's Reference: TBD o DTML User Guide: TBD o DTML User Reference: Complete o ZSQL Guide: 9/23 o ZSQL Reference: TBD Where "Reference" documents are, well, references, and "Guide" documents have a more tutorial flavor. Additionally, we've also been writing a few of How-Tos: http://www.zope.org/Members/jshell/ZSQLMethods-InsertingData http://www.zope.org/Members/jshell/ZSQLMethods-CreatingTables http://www.zope.org/Documentation/How-To/ExternalMethods http://www.zope.org/Members/Pam/DTMLScripting http://www.zope.org/Members/Pam/ChangePorts http://www.zope.org/Members/michel/HowTos/DTMLMethodsandDocsHowTo http://www.zope.org/Members/michel/HowTos/ZODB-How-To http://www.zope.org/Members/michel/HowTos/ApacheRewriting http://www.zope.org/Members/michel/HowTos/LetTagHow-To http://www.zope.org/Members/michel/HowTos/WithTagHow-To http://www.zope.org/Members/michel/HowTos/NameSpaceHow-To with more on the way! (e.g., How To Write a DA in 45,672 easy steps :^) Regards, --Rob -- Rob Page V: 540.371.6909 F: 703.995.0412 Digital Creations, Inc. http://www.digicool.com -- Publishers of the Zope Application Server @ http://www.zope.org

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RE: [Zope] Batch processing
by Michel Pelletier 20 Sep '99

20 Sep '99

> -----Original Message----- > From: Sture [mailto:sture@rocketrange.no] > Sent: Monday, September 20, 1999 4:18 PM > To: zope(a)zope.org > Subject: [Zope] Batch processing > > > Hi! > > I've just noticed something strange? here while trying to do > some stuff > using batch processing. I followed the example in the dtml > users guide > (rev 1.6 s. 27) only changed the size of the batches to '1' > rather than '5'. > Now - I tought that would let me step back and forth trough > the list in steps > of '1', and it does till theres 3 items left in the list - > then all three is > displayed at once (wich is not what I want). > > Is this a bug, or am I doing something stupid here, what? The batch processing won't let you have batches less than the length of the 'orphan' attribute, which defaults to 3. <dtml-in aSequence size=1 orphan=0 ...> should work for you. -Michel

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Batch processing
by Sture 20 Sep '99

20 Sep '99

Hi! I've just noticed something strange? here while trying to do some stuff using batch processing. I followed the example in the dtml users guide (rev 1.6 s. 27) only changed the size of the batches to '1' rather than '5'. Now - I tought that would let me step back and forth trough the list in steps of '1', and it does till theres 3 items left in the list - then all three is displayed at once (wich is not what I want). Is this a bug, or am I doing something stupid here, what? Thanks Sture Lygren

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