September 1999 - Zope

Re: [Zope] zcatalog/zclass problem.. help!
by Martijn Pieters 23 Sep '99

23 Sep '99

At 19:18 23-9-99 , Chris McDonough wrote: >I've searched the mailing list in vain trying to find someone with this same >problem... > >Here tis: > >I've created a ZClass named "News Item", which is, strangely enough, a news >item. It has a class, newsClass, that has a property sheet, Properties, >upon which properties have been developed... including "news", "subject", >"owner", "date", "department" and a few others. > >I've tweaked the methods within this zclass to give me the sort of actions I >want upon add and edit, etc. > >It's based on ZObject and ZClass_for_Catalog_Aware. >ZClass_for_Catalog_Aware was the first base class when it was created. > >Instances of this custom Zclass are placed in folders within my site... I >have additionally developed a Zcatalog ("Catalog"), which lives at the root >of the zodb. Its only contents are news items and it has been indexed on >all the properties of the news item. Additionally, metadata properties are >the same as the indexed properties. > >What I want to happen is this... when someone adds an instance of a news >item, I want it to be immediately added to the zcatalog "Catalog" and become >visible on the "home" page of the site through dtml like this: > > > > news: ><A HREF="/"></A> > > > >Now this sort of works... this dtml snippet will display just "news:" when a >new instance of the News Item zclass is added to the site, meaning that it >KNOWS there's a new instance of News Item.... for each news item that gets >added, it will display another instance of the text "news:". So on my front >page, if I have five news items zclass instances in my site, it'll look >something like this: > >news: > >news: > >news: > >news: > >news: > > >However, it wont display any of the dynamic content eg. , , etc. until I go into the Catalog >Zcatalog and manually update the catalog. Once I manually update the >zcatalog, I get content like: > >AppDev news: >This is news. > >etc.... Looks like you don't call index_object after adjusting the properties on a newly created ZClass. In your costructor DTML Method, after manage_changeProperties, do: <dtml-call index_object> This is needed because there is no way for the XClass to detect wether or not you are making changes to the object after you added it to the ODB. -- Martijn Pieters, Web Developer | Antraciet http://www.antraciet.nl | T: +31 35 7502100 F: +31 35 7502111 | mj(a)antraciet.nl http://www.antraciet.nl/~mj | PGP: http://wwwkeys.nl.pgp.net:11371/pks/lookup?op=get&search=0xA8A32149 ---------------------------------------------

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RE: [Zope] Passing variables to a DTML method ...
by Martijn Pieters 23 Sep '99

23 Sep '99

At 17:41 23-9-99 , Michel Pelletier wrote: > > -----Original Message----- > > From: Darran Edmundson [mailto:Darran.Edmundson@anu.edu.au] > > Sent: Thursday, September 23, 1999 11:03 AM > > To: zope(a)zope.org > > Subject: [Zope] Passing variables to a DTML method ... > > > > > > > > Could someone explain how to pass variables to a > > DTML method? For example, if I have the following > > in a DTML method: > > > > <dtml-call "REQUEST.set('testvar', 'value')"> > > <dtml-var "calledmethod(REQUEST)"> > >Due to some hysterical, I mean historical reasons you cannot simply >"call" a DTML Method unless you pass in a few things. > >A DTML object needs a context in which to render itself. This context >can be passed in one of three ways, as a 'client' object, a 'REQUEST' >mapping (any mapping) or as keyword arguments to the method. For >example: > ><dtml-var "calledmethod(_.None, _, testvar=value)"> > >is one way to do what your looking for. _.None is the client (None), _ >is the current namespace stack (thus the method will render itself in >the current context) and 'testvar=value' is a keyword argument for your >variable. In this case, because all variables arei in the REQUEST object, you can just do: <dtml-var calledmethod> -- Martijn Pieters, Web Developer | Antraciet http://www.antraciet.nl | T: +31 35 7502100 F: +31 35 7502111 | mj(a)antraciet.nl http://www.antraciet.nl/~mj | PGP: http://wwwkeys.nl.pgp.net:11371/pks/lookup?op=get&search=0xA8A32149 ---------------------------------------------

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Re: [Zope] #tree & reverse sort
by achimg＠obelix.cologne.sgi.com 23 Sep '99

23 Sep '99

This problem is also in Zope Version 2.0.1 !! It wasn't corrected. - Achim On Sep 8, 14:55, Martijn Pieters wrote: > Subject: Re: [Zope] #tree & reverse sort > At 13:55 08/09/99 , Achim Gorski wrote: > > >Hello Zope users! > > > > > >The following construct works in Zope-2.0.0b6: > > > > > >I've now switched to Zope-2.0.0 and the above reverse sort produces an > >AttributeError. I still can do reverse sort with the #in tag! > >What's different in 2.0.0 or how can I do a reverse sort with the #tree tag?? > > > >Thanks for your advice. > > > >- Achim > > Congratulations, you have found a bug, > > When Chris subtly changed the way the reverse is performed in both in and > tree tags, he made a mistake in the tree tag, and must have missed it. > > The Tree class uses two TreeDisplay Module functions (note: not member > methods of the Tree class) to display your tree, and within those functions > 'self' is the same as the _.this() object. In case of a DTML Method, it's > the Method's parent in the acquisition path. > > Chris, however, thought it would be the Tree class itself. That class has a > new method, reverse_items, which he thought he could call with > self.reverse_items. What happens is that that method is looked up in your > acquisition tree, where it is not present. > > Solution: > > Remove the reverse_tems method at line 158 and change > items=self.reverse_items(items) (line 345) to: > items=list(items) > items.reverse() > > Warning: I did not test this, but I am sure it'll work. > > I'll report this to the Collector. > > -- > Martijn Pieters, Web Developer > | Antraciet http://www.antraciet.nl > | Tel: +31-35-7502100 Fax: +31-35-7502111 > | mailto:mj@antraciet.nl http://www.antraciet.nl/~mj > | PGP: http://wwwkeys.nl.pgp.net:11371/pks/lookup?op=get&search=0xA8A32149 > ------------------------------------------ >-- End of excerpt from Martijn Pieters -- Silicon Graphics GmbH | Email: Achim Gorski <gorski(a)sgi.com> Frankfurter Str. 720-726 | Phone: +49-2203-9312-24 D-51145 Koeln, Germany | VM : +330-8891 Mail-Stop: IDE-3160 | Fax : +49-2203-9312-20

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RE: [Zope] zcatalog/zclass problem.. help!
by Chris McDonough 23 Sep '99

23 Sep '99

i love you man! well, actually, i dont even know you, but you've put me in a good mood... -----Original Message----- From: Kevin Dangoor [mailto:kid@kendermedia.com] Sent: Thursday, September 23, 1999 3:05 PM To: Chris McDonough; zope(a)zope.org Subject: Re: [Zope] zcatalog/zclass problem.. help! -----Original Message----- From: Chris McDonough <chris(a)iqgroup.com> To: 'zope(a)zope.org' <zope(a)zope.org> Date: Thursday, September 23, 1999 1:40 PM Subject: [Zope] zcatalog/zclass problem.. help! >It's based on ZObject and ZClass_for_Catalog_Aware. >ZClass_for_Catalog_Aware was the first base class when it was created. >Now this sort of works... this dtml snippet will display just "news:" when a >new instance of the News Item zclass is added to the site, meaning that it >KNOWS there's a new instance of News Item.... for each news item that gets >added, it will display another instance of the text "news:". So on my front >page, if I have five news items zclass instances in my site, it'll look >something like this: >However, it wont display any of the dynamic content eg. , , etc. until I go into the Catalog >Zcatalog and manually update the catalog. Once I manually update the >zcatalog, I get content like: > >AppDev news: >This is news. [lots of snipping above] A CatalogAware ZClass will automatically add and remove itself from the catalog. However, it does not update the catalog when properties are changed. This includes in the ZClass_add method... You need to: 1) add the line "<dtml-call reindex_object>" after you call "propertysheets.properties.manage_changeProperties..." 2) If you want to be able to edit these, create a form that essentially duplicates the propertysheet form and post the results to a dtml method like this: <html><body> <dtml-call "propertysheets.properties.manage_changeProperties(REQUEST)"> <dtml-call reindex_object> Changes saved. </body></html> Kevin

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Sorting search results...silly me.
by Kuraiken 23 Sep '99

23 Sep '99

Hello all, Aaargh, this is so embarrassing. I found a way. By using a "date" type instead of hard-coding "month" as a property - this makes sorting trivial. (I have to clarify that it was not just by month but also by day - it cannot sort by two criteria apparently) Which brings me to another question: if instead, I wanted to sort by two or three (or more) criteria...how do I do this? _can_ this be done? Sorry for wasting our collective bandwidth with the earlier post... -- ----------------------------------------- Kuraiken - Python fanatic. ----------------------------------------- Python. Try it. It'll swallow you whole! -----------------------------------------

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Re: [Zope] zcatalog/zclass problem.. help!
by Kevin Dangoor 23 Sep '99

23 Sep '99

-----Original Message----- From: Chris McDonough <chris(a)iqgroup.com> To: 'zope(a)zope.org' <zope(a)zope.org> Date: Thursday, September 23, 1999 1:40 PM Subject: [Zope] zcatalog/zclass problem.. help! >It's based on ZObject and ZClass_for_Catalog_Aware. >ZClass_for_Catalog_Aware was the first base class when it was created. >Now this sort of works... this dtml snippet will display just "news:" when a >new instance of the News Item zclass is added to the site, meaning that it >KNOWS there's a new instance of News Item.... for each news item that gets >added, it will display another instance of the text "news:". So on my front >page, if I have five news items zclass instances in my site, it'll look >something like this: >However, it wont display any of the dynamic content eg. , , etc. until I go into the Catalog >Zcatalog and manually update the catalog. Once I manually update the >zcatalog, I get content like: > >AppDev news: >This is news. [lots of snipping above] A CatalogAware ZClass will automatically add and remove itself from the catalog. However, it does not update the catalog when properties are changed. This includes in the ZClass_add method... You need to: 1) add the line "<dtml-call reindex_object>" after you call "propertysheets.properties.manage_changeProperties..." 2) If you want to be able to edit these, create a form that essentially duplicates the propertysheet form and post the results to a dtml method like this: <html><body> <dtml-call "propertysheets.properties.manage_changeProperties(REQUEST)"> <dtml-call reindex_object> Changes saved. </body></html> Kevin

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RE: [Zope] #tree & reverse sort
by Michel Pelletier 23 Sep '99

23 Sep '99

> -----Original Message----- > From: achimg(a)obelix.cologne.sgi.com > [mailto:achimg@obelix.cologne.sgi.com] > Sent: Thursday, September 23, 1999 12:15 PM > To: Martijn Pieters; Achim Gorski; zope(a)zope.org > Subject: Re: [Zope] #tree & reverse sort > > > This problem is also in Zope Version 2.0.1 !! It wasn't corrected. > > - Achim > 2.0.1 contained *only* the security fix and no others. -Michel

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Access-trouble
by Sture Lygren 23 Sep '99

23 Sep '99

Hi! I was sitting here making some test methods to display folders and file in a folder. Simplyfied: <dtml-in "objectValues(['Folder','File'])"> <dtml-var title_or_id> </dtml-in> That works like it shoul do, but .... Previously I added a local role with permission to 'access content' and 'view' to the site. I fired up my netscape and logged in as the user with the local role. Then I noticed something strange? - I could access and view all but the newly made 'list folders and files' method. I went back, logged in as manager and checked the permissions on the method and on the containing folder, but there is nothing wrong with it (as far as I can tell at least). Could someone be so kind to tell me what happens here? Am I plain stupid or ...? Another question while I'm on (can't test it until I get the above right): Will the code below only show the folders in a containing folder wich the current user owns (this is what I want), or do I need some other code to let this magic happen (please show me)? <dtml-in "objectValues(['Folder'])"> <dtml-if "AUTHENTICATED_USER.has_role('Owner','Folder')"> <dtml-var title_or_id> </dtml-if> </dtml-in> Thanks in advance Sture Lygren

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In trying to follow several links from ...
by Paul R Hewitt 23 Sep '99

23 Sep '99

...the Zope news for 22 Sept, I get message such as The resource you requested was not found. You may wish to search Zope.org to find what you are looking for. If you were trying to access a resource on the old Zope.org site, try this http://www.zope.org:8080/pipermail/zope/1999-September/010585.html. When I follow the link to the old site I get the terse message "That document does not exist".

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PANIC(300) after ZCatalog Find
by Chris McDonough 23 Sep '99

23 Sep '99

Apparent Zope crash while trying "Find Items to ZCatalog" on a Zope 2.0.0 system with custom ZClasses on top of Linux 2.2.5 with a 19MB Data.fs. This was the console output: 1999-09-21T22:47:57 INFO(0) Z2 CONFLICT Competing writes at, /Catalog/manage_cat alogFoundItems ------ 1999-09-21T22:48:05 INFO(0) Z2 CONFLICT Competing writes at, /Catalog/manage_cat alogFoundItems ------ 1999-09-21T22:48:16 INFO(0) Z2 CONFLICT Competing writes at, /Catalog/manage_cat alogFoundItems ------ 1999-09-21T22:48:23 INFO(0) Z2 CONFLICT Competing writes at, /Catalog/manage_cat alogFoundItems ------ 1999-09-21T22:48:32 INFO(0) Z2 CONFLICT Competing writes at, /Catalog/manage_cat alogFoundItems ------ 1999-09-21T22:48:42 INFO(0) Z2 CONFLICT Competing writes at, /Catalog/manage_cat alogFoundItems ------ 1999-09-21T23:05:38 PANIC(300) ZODB An storage error occurred in the last phase of a two-phase commit. This shouldn't happen. The application may be in a hosed state, so we will not allow transactions to commit from here on The symptoms were that the system shot up to 100% CPU utilization (one Python process hogging the CPU) for about 20 minutes, then shot back down to idle. Even after idling out, no connections could be established with the server. I had to manually stop Zope and start it again to make it "go" again. You want that I try to replicate it? - C

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