May 1999 - Zope - Zope lists

RE: [Zope] ZClasses derived from ObjectManager and Factories
by Martijn Pieters 11 May '99

11 May '99

At 19:54 10/05/99 , Michel Pelletier wrote: > > -----Original Message----- > > From: Martijn Pieters [mailto:mj@antraciet.nl] > > Sent: Monday, May 10, 1999 10:54 AM > > To: Zope Mailinglist > > Subject: [Zope] ZClasses derived from ObjectManager and Factories > > > > > > This is more a question for DC than for the list: > > > > Will it be possible in the future to limit in what places > > users can add > > ZClass instances? I have one ZClass derived from > > ObjectManager, let's call > > it Container, and another called Element, a simple object, > > and I want to be > > able to add instances of Element to Container, but not to any other > > ObjectManager derived objects (including Folders). Right now, > > this means I > > have to provide an alternative to manage_main.. > >Here's a hint, Put a ZClass in another ZClasses method tab, create a >constructor, and hange munge the Add select box for your Parent ZClasses >manage_main (or whatever). The hint helped :) When you add a ZClass to the Methods tab of a Container ZClass (a class derived from ZObjectManager), and add a factory object to the same tab (the latest CVS version of ZClasses does this automatically, way to go Jim), then that ZClass is automatically addible to the contents of the container ZClass. You don´t even have to specify the class on the Subobjects tab. ZClasses are absolutely great. Now, about property sheets... How can I add a PropertySheet that is extensible? I want to be able to extend the properties on certain objects from within a Zope application. I am developing a Template System, which I want to use in, say, a Press release module, and in a Job Offerings module. Either module may want to add it´s own properties. But I don´t want to have to subclass the Template Classes. I just want to treat them like DTML Documents, and inheriting from both DTML Document and ObjectManager creates all sorts of problems, and I don´t want to inherit from Folder either! And about permissions: I´d like to be able to control who can add the newly created ZClasses, i.e. I want to specify the ´Add <ZClass Name>´ permission, and attach it to the methods that create my new object. I also don´t see my newly created permissions on the security tab of any object outside instances of my ZClasses, so I can´t set permissions that are to be acquired from, say, the root folder. I also can´t set default Roles for my permissions. -- Martijn Pieters, Web Developer | Antraciet http://www.antraciet.nl | Tel: +31-35-6254545 Fax: +31-35-6254555 | mailto:mj@antraciet.nl http://www.antraciet.nl/~mj | PGP: http://wwwkeys.nl.pgp.net:11371/pks/lookup?op=get&search=0xA8A32149 ------------------------------------------

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Frameset weirdness with Zope 1.11.0pr1
by Tony McDonald 11 May '99

11 May '99

Hi all, This is a weird one. Is there any reason why the following frameset document, saved as a DTML Method <FRAMESET COLS="20%,80%"> <NOFRAMES> <BODY ></NOFRAMES> <FRAME SRC="mini_headers" NAME="LeftFrame"> <FRAME SRC="display?sib_id=15" NAME="RightFrame"> </FRAMESET> Just displays as text under Zope 1.11.0pr1, but shows the frames under Zope 1.10.2? To make things worse, it only happens with Netscape (3, Communicator) and not with Internet Explorer. huh? Tone ------ Dr Tony McDonald, FMCC, Networked Learning Environments Project The Medical School, Newcastle University Tel: +44 191 222 5888 Fingerprint: 3450 876D FA41 B926 D3DD F8C3 F2D0 C3B9 8B38 18A2

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Re: [Zope] Why doesn't this work?
by Craig Allen 11 May '99

11 May '99

webman wrote: > i removed the bluedot and image tags and this thing wouldn't work > for me. i called it via a seperate document. does this DTML method > have to be in the root folder? No, at least not in my environment, but because of the line below, there must be at least 2 documents in the folder. Which also means you can include it in a template and not have it displaying if it's not apprpriate. Hope this helps. if not, send me what you have and I'll see if I can see anything. I'm not at all an expert, tho.. - Craig > >

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FW: [Zope] Dealing with international character sets
by Alexander Staubo 11 May '99

11 May '99

Sorry for having to repost this, but I have not found an answer (nor received any response). Is this a Python thing, or a Zope thing? Does Zope/Python provide any suitable translation APIs for international character sets? Alexander Staubo http://www.mop.no/~alex/ mailto:redhand@mop.no >-----Original Message----- >From: Alexander Staubo [mailto:alex@mop.no] >Sent: 6. mai 1999 21:11 >To: zope(a)zope.org >Subject: [Zope] Dealing with international character sets > > >I note that Zope is converting strings with certain international >characters into its own notation. Specifically, in my country our >alphabet contains three additional characters. For example, "oslash" >(\0xF8 on my system), which Zope expands into "\370". Oddly enough Zope >does not have the same problem with other international characters such >as accented letters, or the German alphabet. > >Now, this is extremely inconvenient when dealing with database tables, >because obvious such things as name lookup won't work, and besides, any >strings that are put into the table fields will use Zope syntax, not a >"proper" character set (eg., ISO-8859-1, which is the one we use here). >Is there a solution? For example, a function to convert the Zope string >back to my kind of string? > >How can I get Zope to work with my international character set? > >Alexander Staubo >http://www.mop.no/~alex/ >mailto:redhand@mop.no > > >_______________________________________________ >Zope maillist - Zope(a)zope.org >http://www.zope.org/mailman/listinfo/zope > >(For developer-specific issues, use the companion list, >zope-dev(a)zope.org - http://www.zope.org/mailman/listinfo/zope-dev ) >

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RE: What method do I use to check access?
by Jay, Dylan 10 May '99

10 May '99

> -----Original Message----- > From: Jason Spisak [mailto:webmaster@mtear.com] > Sent: Tuesday, May 11, 1999 3:11 AM > To: Jay Dylan; zope(a)zope.org > Subject: RE: What method do I use to check access? > > > Jay, > > Try . There was an > excellent posting in the archives about all the possibilities with the > user object. Also read the files in the AccessControl folder inside > Zope/lib/python. the has_role method I already use and is not convienient as it means I have to hard code the roles. I've looked in AccessControl and only come across def allowed(self,parent,roles=None): but was unsuccessful in getting it to do what I want. I will look for that email in the archives. > -- > Jason Spisak > webmaster(a)mtear.com >

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RE: [Zope] zope: accessing zsql methods from external methods (1. 10.2 and 1.11pr1)
by Brian Lloyd 10 May '99

10 May '99

> I'm stumped. > > I need a simple example of how to get an external python > method to grok > a working zsql query. > > I have a zsql query which works fine, called showcont, returning the > entire contents of a small table. > > I have a simple external method based on the hint on page 11 > of the zsql > methods user's guide which implies that an external method should get > something useful back from showcont() - I've stripped it to the basics > so I expect to get some horrible but familiar text back without adding > any python complications - I just want this to work !!! > > ===========testzsql.py in Extensions directory > # testing external methods > def test(self): > s = '' > for cont in showcont(): > for contitem in cont: > s = s + contitem + '<BR>' > return s > ========= > The external method is loaded into the same folder as the zsql method > and function test is called as testzsql. > > I put a  into a dtml method and get...tracebacks. > Basically, they all point to the fourth line - the showcont() > call seems > to break. At first glance, I'd guess that the problem is that you are not qualifying the showcont() method ( but I cant be sure without seeing the actual traceback ). Note that the "magical" namespace binding that happens in DTML does *not* happen in external methods -- in other words, you need to qualify the method yourself: self.showcont() instead of just showcont(), assuming that your showcont() method lives in the same folder. Hope this helps! Brian Lloyd brian(a)digicool.com Software Engineer 540.371.6909 Digital Creations http://www.digicool.com

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Problem setting up SQL
by Itamar S.-T. 10 May '99

10 May '99

I've just starting using Zope, and it's looking pretty cool, but I'm having trouble getting MySQL connected. This problem is in both Zope 1.10 and 1.11p1, and I've installed the ZMySQLDA as per instructions. I add a Z MySQL Database Connection, which is connected. I add a ZSQL Method, and when I try to test it I get: Error, exceptions.KeyError: unhandled SQL used: select all * from Contents With the traceback: Traceback (innermost last): File lib/python/ZPublisher/Publish.py, line 255, in publish_module File lib/python/ZPublisher/Publish.py, line 157, in publish File lib/python/ZPublisher/mapply.py, line 154, in mapply (Object: manage_test) File lib/python/ZPublisher/Publish.py, line 98, in call_object (Object: manage_test) File lib/python/Shared/DC/ZRDB/DA.py, line 303, in manage_test (Object: testst) File lib/python/Shared/DC/ZRDB/DA.py, line 284, in manage_test (Object: testst) File lib/python/Shared/DC/ZRDB/DA.py, line 388, in __call__ (Object: testst) File lib/python/Products/ZMySQLDA/db.py, line 191, in query KeyError: (see above) What am I doing wrong? -- Itamar - itamars(a)ibm.net -----------------------------o-------------------------------------o Whole Pop Magazine Online | The only good morning is a dead one | http://www.wholepop.com/ | -- Richard Stallman |

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RE: [Zope] External methods and images
by Wolf Logan 10 May '99

10 May '99

whoops. sorry...i forgot to mention the revision i'm in (1.10.2, ExternalMethod 1.3). i'll see if i can find the appropriate code in 1.11.x -----Original Message----- From: Tony McDonald [mailto:tony.mcdonald@ncl.ac.uk] Sent: Monday, May 10, 1999 7:15 AM wolf said: >i was able to patch it by replacing line 255 in ExternalMethod.py with: > >----- > if (type(error_type) is type('')) and (lower(error_type) in >('redirect',)): >----- Ah, that might explain it. Only problem is that I'm using Zope-1.11.0pr1 and there aren't enough lines in ExternalMethod.py

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RE: [Zope] ZClasses derived from ObjectManager and Factories
by Michel Pelletier 10 May '99

10 May '99

> -----Original Message----- > From: Martijn Pieters [mailto:mj@antraciet.nl] > Sent: Monday, May 10, 1999 10:54 AM > To: Zope Mailinglist > Subject: [Zope] ZClasses derived from ObjectManager and Factories > > > This is more a question for DC than for the list: > > Will it be possible in the future to limit in what places > users can add > ZClass instances? I have one ZClass derived from > ObjectManager, let's call > it Container, and another called Element, a simple object, > and I want to be > able to add instances of Element to Container, but not to any other > ObjectManager derived objects (including Folders). Right now, > this means I > have to provide an alternative to manage_main.. Here's a hint, Put a ZClass in another ZClasses method tab, create a constructor, and hange munge the Add select box for your Parent ZClasses manage_main (or whatever). -Michel > > -- > Martijn Pieters, Web Developer > | Antraciet http://www.antraciet.nl > | Tel: +31-35-6254545 Fax: +31-35-6254555 > | mailto:mj@antraciet.nl http://www.antraciet.nl/~mj > | PGP: > http://wwwkeys.nl.pgp.net:11371/pks/lookup?op=get&search=0xA8A32149 > ------------------------------------------ > > _______________________________________________ > Zope maillist - Zope(a)zope.org > http://www.zope.org/mailman/listinfo/zope > > (For developer-specific issues, use the companion list, > zope-dev(a)zope.org - http://www.zope.org/mailman/listinfo/zope-dev ) >

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Wierd permissions problem
by Howard Clinton Shaw III 10 May '99

10 May '99

Well, I mentioned this once before, and got no response, but I've explored it just a bit more, so I thought I would bring it up again. If I have a user in a subfolder, with a role that has every permission set, just like the manager role, he cannot access images. He can add and delete them, but if he clicks on them, he cannot access the image's manage_main screen. If I give him the manager role, with exactly identical permissions (and every level between has permissions set to acquire, on EVERY permission) then he can view the manage_main page! What is the cause of this? -- Howard Clinton Shaw III - Grum St. Thomas High School #include <disclaimer.h>

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