September 1999 - Zope

Re: Some questions about ZCatalog
by Itai Tavor 10 Sep '99

10 Sep '99

Just thought of a possible solution to the last problem... add a method to the object, named title_of_parent, which returns the parent's title. Tell the catalog to index title_of_parent. Take a vacation. Makes sense? Good solution? Comments? Itai Tavor wrote: > Hi, > > I can't figure out how to access an object found by a catalog search: > > <dtml-let obj="Catalog.getobject(data_record_id_, REQUEST)"> &dtml-obj; > </dtml-let> > > displays the object instance ( <DTMLDocument instance at xxxxxxx> ). > But: > > <dtml-with "Catalog.getobject(data_record_id_, REQUEST)"> &dtml-title; > </dtml-with> > > returns Unahthorized. Why? > > A related question: Instead of accessing the object, like I try to do > above, I guess I can plug in a brain that will get whatever I need from > the object and add it to the data record. Is there a simple example > anywhere of how to implement a simple pluggabale brain for a catalog > that will do this? > > And one more question: The reason I need to do all this is that my find > page needs to show the titles of the containers of the found object, two > levels up. I can't index these titles in the catalog, because indexing > 'title' gets the title of the object, and the catalog can't be told to > index "PARENTS[1].title" (or can it?). Is it possible somehow for a > catalog aware object to add properties to its entry in the catalog? > > BTW, my catalog aware objects are Python products, not ZClasses, if that > makes a difference. > > Thanks Itai -- Itai Tavor -- "Je sautille, donc je suis." -- itavor(a)vic.bigpond.net.au -- - Kermit the Frog -- -- 'Supposing a tree fell down, Pooh, when we were underneath it?' -- -- 'Supposing it didn't,' said Pooh after careful thought. --

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strange errors while using mysql with 2.0
by linuxcraft＠scorpio.redspice.com 10 Sep '99

10 Sep '99

I upgraded to 2.0. Now some of my mysql methods fail with the following error. intrestingly some queries do work . Any suggestions comrades ? Traceback (innermost last): File /var/local/Zope-2.0.0-linux2-x86/lib/python/ZPublisher/Publish.p y, line 214, in publish_module File /var/local/Zope-2.0.0-linux2-x86/lib/python/ZPublisher/Publish.p y, line 179, in publish File /var/local/Zope-2.0.0-linux2-x86/lib/python/Zope/__init__.py, line 201, in zpublisher_exception_hook (Object: ElementWithAttributes) File /var/local/Zope-2.0.0-linux2-x86/lib/python/ZPublisher/Publish.p y, line 165, in publish File /var/local/Zope-2.0.0-linux2-x86/lib/python/ZPublisher/mapply.py , line 160, in mapply (Object: processCreateAccount_html) File /var/local/Zope-2.0.0-linux2-x86/lib/python/ZPublisher/Publish.p y, line 102, in call_object (Object: processCreateAccount_html) File /var/local/Zope-2.0.0-linux2-x86/lib/python/OFS/DTMLDocument.py, line 166, in __call__ (Object: processCreateAccount_html) File /var/local/Zope-2.0.0-linux2-x86/lib/python/DocumentTemplate/DT_ String.py, line 502, in __call__ (Object: processCreateAccount_html) File /var/local/Zope-2.0.0-linux2-x86/lib/python/DocumentTemplate/DT_ Util.py, line 321, in eval (Object: insertLoginAcct(login_id=login_id,email=email,pd=getPassWo rd,fname=fname,lname=lname)) File <string>, line 0, in ? File /var/local/Zope-2.0.0-linux2-x86/lib/python/Shared/DC/ZRDB/DA.py , line 401, in __call__ (Object: insertLoginAcct) File /var/local/Zope-2.0.0-linux2-x86/lib/python/Products/ZMySQLDA/db .py, line 171, in query error: (see above)

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RE: [Zope] Login?
by Martijn Pieters 10 Sep '99

10 Sep '99

At 20:19 09/09/99 , Terrel Shumway wrote: >I am planning to create a registration product that will validate new users >against an LDAP directory. >i.e. > The user fills out the registration form. > Zope verifies that the user exists in the directory. > If the lookup succeeds > Zope creates a user login and lets the user know that his >registration is suceeded. > else > Zope sends e-mail to the administrator and tells the user >who that administrator is. > > >If anyone has done this already, or is doing this, I will work with you. >Otherwise, I will probably get around to this in about two weeks. Are you going to write the LDAP directory connector? If so, note that Anthony Baxter (anthony(a)interlink.com.au) has done this already. You can find his efforts at: http://www.interlink.com.au/anthony/index.html -- 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 ------------------------------------------

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Tree state interaction with acquisition
by Bruce Elrick 10 Sep '99

10 Sep '99

I'm trying to understand how acquisition of objects with tree tags affects the tree's state (or is that trees' state?). My index_html DTML_Method in the root folder is acquired almost everywhere. It includes (via dtml-var) my treenav DTML_Method in the root folder which implements the following: <dtml-tree expr="PARENTS[-1]" skip_unauthorized=1 sort=title_or_id branches_expr="navigate_filter('hidden',1,cat='Folder',acquire=0,negate=1)" > <dtml-if hidden>  <dtml-else> <a href="<dtml-var absolute_url>"></a> </dtml-if> </dtml-tree> <a href="?collapse_all=1">Collapse tree</a><br> <a href="?expand_all=1">Expand tree</a><br> As I jump around my site, the tree's state behaviour behaves strangely. For example, if I'm at the root and I expand the tree then click on one of the folder links (which are clean URL's to the folder since I use the absolute_url var), the state of the tree rendered there may be different, especially if I subsequantly jump somewhere else. If you have this: root--+--A--+--AA--+--AAA | | +--AAB | | | +--AB--+--ABA | +--ABB | +--B--+--BA--+--BAA | | +--BAB | | | +--BB--+--BBA | +--BBB ... with index_html being in the root along with treenav, both being DTML_Methods, with index_html including treenav using <dtml-var treenav> Then when you browse to http://site.com/A/AA/AAA/index_html http://site.com/B/BA/BAB/index_html is the "tree" the same tree? By same, I am refering to the fact that it stores a cookie which affects the tree state when it is not called with .../index_html?tree-e=... I know the 'expr="PARENTS[-1]"' in the tree affects things, but I don't know how. I know when http://site.com/A/AA/AAA/index_html uses <dtml-var treenav>, it acquires it from the root folder, but does that make the tree and its state the same "tree"? Perplexedly yours... Bruce P.S. I am trying to avoid using frames, which is why I acquire the index_html and its navigation tree. -- Bruce Elrick, Ph.D. Saltus Technology Consulting Group Cell: (403) 870-4429 Personal: belrick(a)home.com IBM Certified Specialist Business: belrick(a)saltus.ab.ca ADSM, AIX Support, RS/6000 SP, HACMP

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Glossary
by Arnaud Lecat 10 Sep '99

10 Sep '99

Hi, I'd like to implement a glossary for my customers. I'm not that good with ZClasses. Is there something already made for this ? -- >> WinErr: 080 Clavier introuvable - Veuillez appuyer sur n'importe quelle touche pour continuer. << Arnaud LECAT >> Email: lecat(a)hexanet.fr >> WWW page:www.hexanet.fr/~lecat HEXANET >> http://www.hexanet.fr Z.A. Farman sud - 9 rue Roland Coffignot BP 415 - 51689 Reims Cedex 2 - France phone: (33) 03 26 79 30 05 Fax: (33) 03 26 79 30 06

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ftp-upload
by Andy Pahne 10 Sep '99

10 Sep '99

hi there, i know that in zope 1 i had to use an extension in order to upload contents into the zope-database. what about zope2. do i still have to use an extension, or is ftp now a zope feature? if yes: how do i do it? Andy Pahne ap(a)net22.net

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Re: [Zope] The QuickRef needs a link from the docs page.
by kedai 10 Sep '99

10 Sep '99

> > OO is a bit tricky to start with, though Python makes it very easy. i bought mark lutz programming python - and tried to follow the tutorial. hoever, it does not sink in. i can get the earlier part, but missed a lot when i entered chapter 4! note to self: need to look at the book again. > > > Currently it seems that the volunteer produced Zope Quick Reference is > the only documentation that lists (briefly) the methods on the various > Zope objects. To see what they actually do, currently you need to > consult the Zope source, which is an extreme thing to do to beginners. i agree. i skimmed the source and got a vague idea on how things work now. but some things need further explaination/examples. take these snippets from the ZQR: <dtml-call "REQUEST.set('list',[])"> <dtml-call "list.append(1)"> <dtml-var "list[0]"> i get the first statement. it's in the ZQR. its using REQUEST and set (which is def in BaseRequest , i think) and sets the values. the 2nd stement i got only part of it. it's calling the list object, but where did the append come from? is it a method that the author had done already (as in the dtml-call "addDocument(.....)"> example, or is it standard Zope methods? if it's some method the author had done, i get it. can i safely say that REQUEST is the class and set is a method in REQUEST? even though the BaeRequest.py never state explicitly that REQUES is a class (it only say BaseRequest is a class)? or where did the REQUEST come from? the ZQR mentioned that we can use form with REQUEST, but there's no such definition/method(?) in the BaseRequest.py. where did that come from? another object i presumed, but which one? i hope i've shown reasons i or maybe a few more from non python background faced. > > > So far, the ZQR. I hope and assume Digital Creations is producing a > reference describing these standard methods more fully. If they're not, > we need to take action ourselves. Would you like to be the volunteer > that keeps track of this? Ask Digital Creations (on the ZDP list i think the ZQR fits nicely, only we need to put in more examples and reasons why it is so. but then, it's not a quick reference anymore, ..is it? :) > > hope i didn't paint my self as a complete fool here. > > Not at all. You raised good questions.. > > I hope this helped! thanks for taking my newbie Qs.

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Unable to create an instance of zclass within a zclass.
by chas 10 Sep '99

10 Sep '99

Hi folks, This is one problem I've seen in the archives several times but with no answer/solution (that I could find, anyway) : - Created a new product (MyProduct) using the Control Panel/Products - Inside MyProduct : created a new ZClass (ClassA) based on ObjectManager. - Inside ClassA : created a new ZClass (ClassB) based on ObjectManager. - Added a new instance of ClassA to the Zope root using the 'add button' - Within this instance of ClassA, tried to add an instance of ClassB - Error "Resource not found" - Traceback : File D:\Zope\lib\python\ZPublisher\Publish.py, line 214, in publish_module File D:\Zope\lib\python\ZPublisher\Publish.py, line 179, in publish File D:\Zope\lib\python\Zope\__init__.py, line 201, in zpublisher_exception_hook (Object: RoleManager) File D:\Zope\lib\python\ZPublisher\Publish.py, line 151, in publish File D:\Zope\lib\python\ZPublisher\BaseRequest.py, line 426, in traverse File D:\Zope\lib\python\AccessControl\User.py, line 373, in validate (Object: RoleManager) File D:\Zope\lib\python\ZPublisher\HTTPResponse.py, line 510, in notFoundError NotFound: (see above) In fact, just how are the zope permissions objects used in this context ? I've looked at KmNews and even tried copying that (adding other objects to the Subobjects tab) but can't see what the key is, short of offering a sacrificial hedgehog to the zope gods. thanks for any help, chas

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RE: [Zope] redirection of whole sub-trees
by Jay, Dylan 10 Sep '99

10 Sep '99

> -----Original Message----- > From: Jay, Dylan > Sent: Thursday, September 09, 1999 09:17 > To: 'Martijn Pieters'; Jay, Dylan; 'alex(a)mop.no' > Cc: 'zope(a)zope.org' > Subject: RE: [Zope] redirection of whole sub-trees > > > > -----Original Message----- > > From: Martijn Pieters [mailto:mj@antraciet.nl] > > Sent: Wednesday, September 08, 1999 19:41 > > To: Jay, Dylan; 'alex(a)mop.no' > > Cc: 'zope(a)zope.org' > > Subject: Re: [Zope] redirection of whole sub-trees > > > > > > At 08:49 08/09/99 , Jay, Dylan wrote: > > >Is it possible to make this product redirect whole > > sub-trees? I'm migrating > > >a Zop1 site using cgi under IIS to Zope2 using ZServer. I > > want to redirect > > >all the "/cgi-bin/zope.exe/(.*)" queries to "/\1" using the > > grouping syntax. > > >since I'm not using apache I can't use mod_rewrite so this > > is the only > > >option I can think of at the moment and I can't upgrade > > until I have the > > >redirection in place. > > > > > >I can do the substitution no prob by changing after line 95 like so > > > > > > for k in self.Mappings.keys(): > > > m = re.match(k, Name) > > > if m: > > > Name = re.sub(k, self.Mappings[k], Name) > > > > > >But "Name" is not the remainder of the url :( > > > > I believe there is a redirection product doing just that: > > > > http://www.zope.org:18200/Members/astaubo/Redirector > > Opps, didn't make myself clear. The Redirector product is > what I'm using and it doesn't do that. It redirects only > objects in one folder not and entire subtree. Ok, here is the patch that will allow the redirection of subtrees. Whats more it does reg-exp substitutions. The __bobo_traverse__ method in Redirector.py should look like this. def __bobo_traverse__(self, REQUEST, Name = ''): if Name[:6] != 'manage': import ExtensionClass class doTraverse(ExtensionClass.Base): def __init__(self, path, Mappings, Target, HardMap): self.path = path self.Mappings = Mappings self.Target = Target self.HardMap = HardMap def __bobo_traverse__(self, REQUEST, Name = ''): self.path = self.path + '/' + Name return self.__class__(self.path, self.Mappings, self.Target, self.HardMap) def __call__(self, REQUEST): path = self.path if REQUEST['QUERY_STRING']: path = path + "?" + REQUEST['QUERY_STRING'] for k in self.Mappings.keys(): if re.match(k, path): path = re.sub(k, self.Mappings[k], path) break else: if self.HardMap: raise 'Redirect', self.Target def Merge(Target, Url): if Url[:5] == 'http:' or Url[:4] == 'ftp:': return Url else: return Target + Url raise 'Redirect', Merge(self.Target , path) return doTraverse(Name, self.Mappings, self.Target, self.HardMap) if hasattr(self, 'aq_base'): b = self.aq_base if hasattr(b, Name): return getattr(self, Name) try: return self[Name] except: return getattr(self, Name)

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Tree Images
by John Goerzen 10 Sep '99

10 Sep '99

Hi, By default, Zope does this for the plus signs in a tree: <IMG SRC="/p_/pl" BORDER=0> I want to add an ALT tag to this, so my pages remain as lynx-friendly as possible. How can I do this? This doesn't seem to be configurable anywhere. Thanks, John -- John Goerzen Linux, Unix consulting & programming jgoerzen(a)complete.org | Developer, Debian GNU/Linux (Free powerful OS upgrade) www.debian.org | ----------------------------------------------------------------------------+ The 46,497,300th prime number is 910,056,127.

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