November 1999 - Zope

RE: [Zope] How to set-up authentication of pages
by Michel Pelletier 30 Nov '99

30 Nov '99

> -----Original Message----- > From: Andres Corrada [mailto:andres@corrada.com] > Sent: Tuesday, November 30, 1999 10:17 AM > To: zope(a)zope.org > Subject: Re: [Zope] How to set-up authentication of pages > > how to get around problems I encounter. I've read the > documentation but > it doesn't solve my problem because I want an automatic way of adding > members to a client's site. I know how to do that with mod_auth_mysql > because I can write the Python script that adds form > information to the > mysql database. What Zope functions can I call from my scripts to do > this addition to the Zope users database? The ZCMG only has "hand > insertion" of users into Zope. You can get identical automation with DTML Methods and ZSQL methods to insert records into a relational database. A simple example can be found at: http://www.zope.org/Documentation/How-To/SQLInsert -Michel

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Acquisition crutch
by Toby Dickenson 30 Nov '99

30 Nov '99

Ive had some more problems which I thought might be due to unexpected acquisition contexts, so I created this function as a diagnostic tool. I _think_ it correctly displays the order in which objects are searched for attributes.... Could anyone with acquisition Zen confirm it's doing the right thing? thanks, def aq_order(ob): """Return a list of object repr's, showing the order in which the various objects in the acquisition tree will searched for attributes. """ return _aq_order(ob,[]) def _aq_order(ob,old): if hasattr(ob,'aq_self'): # It's an acquisition wrapper return _aq_order(ob.aq_self,old) + _aq_order(ob.aq_parent,old) else: # Its a real object if ob in old: # This has already been looked up # return [ '(%s)' % repr(ob) ] return [] else: old.append(ob) return [ repr(ob) ]

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ZCatalog: No Space Left on Device
by Martijn Faassen 30 Nov '99

30 Nov '99

Hi there, Sometimes when I'm ZCatalogging (in Zope 2.0.1) a lot of objects it aborts (after a long time) with 'no space left on device'. This while there is still over a 100 megs of space on the drive. Anyone have any clue what this means? Regards, Martijn

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RE: [Zope] Interfacing with Z SQL Method?
by Chris McDonough 30 Nov '99

30 Nov '99

> > Is this what you mean? > > Is this what you mean? > > Perfect, everything seems to be working. > > Is there a document that describes the syntax for calling > methods? I'm > sure I must have read it, but I need to read it again.... The Zope Content Manager's Guide is a good place to start (see zope.org documentation), but documentation is scattered in about 17 million places. Sometimes the best bet is to search the mailing list archives for examples of method-calling.... > > I don't yet grasp why this works: > > <dtml-in "News.SQL_GetHeadlineSummary(ids=[1,3])"> > <dtml-var title> > <UL><dtml-var body size=64 etc="..."></UL> > </dtml-in> > > but the same thing without quotes around "News..[1,3])" doesn't. > Whereas the plain <dtml-in SQL_GetHeadlineSummary> works. Sadly, nor do I.... > > Thanks again for your help. > Good luck!

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FW: XEmacs and Zope
by Michel Pelletier 30 Nov '99

30 Nov '99

> -----Original Message----- > From: Alexander Graefe [mailto:wa0191@stud.uni-wuppertal.de] > Sent: Monday, November 29, 1999 12:08 PM > To: michel(a)digicool.com > Subject: XEmacs and Zope > > > Hi there. > > I read your HowTo about using XEmacs with Zserver, and it's a really > nice way to work with Zope. Unfortunately, when I edit a DTML > Method and > save it, it gets stored as a DTML Document. > I am using XEmacs 20.4 and Zope 2.0.1, is this a known phenomenon ? It's emacs, you need to: (setq efs-make-backup-files nil) in your .emacs to turn off emacs renaming the original file to a backup copy and writing a new version of it (which turns it into a document). If xemacs just overwrites the original method, it will stay a method. -Michel

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RE: [Zope] How to set-up authentication of pages
by Chris McDonough 30 Nov '99

30 Nov '99

Andres, There is a Zope Product named UserDB that allows you to authenticate users from a SQL datastore (http://www.zope.org/Members/otto/userdb) additionally, Stuart 'Zen' Bishop has released Generic User Folder (a howto is available at http://www.zope.org/Members/hippy/GUF_SQL_crypt) which appears to do the same thing. Insted of relying on apache modules to read and write user info, try one of these. Chris McDonough Digital Creations, Inc. Zope - http://www.zope.org > -----Original Message----- > From: Andres Corrada [mailto:andres@corrada.com] > Sent: Tuesday, November 30, 1999 10:17 AM > To: zope(a)zope.org > Subject: Re: [Zope] How to set-up authentication of pages > > > Michel Pelletier wrote: > > > > I think it would be much easier for you if you got rid of > mod_auth_mysql > > and let Zope handle all the authentication. > > > > Descriptions of Users, Permissions, and Roles can be found in the > > documentation section of the Zope site in the Zope Content Manager's > > Guide. > > Thanks Michel and Chris for your answers. I'm new to Zope and I > foolhardily put into a project I had to deliver two weeks ago. The > extensive learning process in Zope is making it hard for me to decide > how to get around problems I encounter. I've read the > documentation but > it doesn't solve my problem because I want an automatic way of adding > members to a client's site. I know how to do that with mod_auth_mysql > because I can write the Python script that adds form > information to the > mysql database. What Zope functions can I call from my scripts to do > this addition to the Zope users database? The ZCMG only has "hand > insertion" of users into Zope. > > By the way, I partly suceeded in doing authentication with > mod_auth_mysql by having the following lines in my virtual host > directive: > > RewriteCond %{HTTP:Authorization} ^/(.*) > RewriteRule ^/(.*) /path/to/my/Zope/directory/Zope.cgi/$1 > [e=HTTP_CGI_AUTHORIZATION:%1, > t=application/x-httpd-cgi,l] > <Location ~ ".*/Members"> > AuthType Basic > . > . > . > </Location> > > When I try to access the members page I get an authentication query by > Apache but Zope immediately asks for authentication also, > whereupon I'm > rudely told that a Zope error has ocurred. Why the double > authentication? Why is Zope requiring authentication? > > ------------------------------------------------------ > Andres Corrada-Emmanuel Email: andres(a)corrada.com > Owner http://www.corrada.com/mamey > Mamey Phone: (413) 587-9595 > ------------------------------------------------------ > > _______________________________________________ > Zope maillist - Zope(a)zope.org > http://lists.zope.org/mailman/listinfo/zope > No cross posts or HTML encoding! > (Related lists - > http://lists.zope.org/mailman/listinfo/zope-announce > http://lists.zope.org/mailman/listinfo/zope-dev ) >

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RE: [Zope] Interfacing with Z SQL Method?
by Chris McDonough 30 Nov '99

30 Nov '99

> -----Original Message----- > From: Art Hampton [mailto:arth@pacsg.css.mot.com] > Sent: Tuesday, November 30, 1999 10:56 AM > To: zope(a)zope.org > Subject: [Zope] Interfacing with Z SQL Method? > > > I'm having problems interfacing with an SQL method I've created. > > My method takes two arguments: > ids:tokens:int="" limit:int="10" > > ids is a space separated list of news article category IDs (any if > empty), and limit is the maximum number of articles I want returned. > > No problems so far, my method works as desired. > > Problem #1: > My problem occurs with interfacing with the method. The > auto-generated > Z Search Interface can access the data just fine. > > But I want to create a document method which will call the > SQL method. > No query will have been performed at this point. I want to > make a page > which retrieves the category IDs of interest for the current user, and > then uses that list for the ids parameter. I cannot figure out how I > can set the ids parameter for the SQL method. My impression from > reading the Z SQL Method guide is that the parameters are only taken > from the variables given in the query (not applicable for the > first view > of this page), or from variables in the folder (which doesn't help me, > since the ids vary with the user, not the folder). > > The following snippet of code works fine for the default arguments: > <dtml-in SQL_GetHeadlineSummary size=20 start=qs> > <dtml-var title> > <UL><dtml-var body size=8 etc="..."></UL> > </dtml-in> > > What do I need to do to get it to use values that I pass in? Or can I > do that? You can do something like this: <dtml-call REQUEST.set('ids', '1 2 3')> <dtml-call yourSQLMethod> Is this what you mean? > > > Problem #2: > I'd like to pull in the headlines (discussed above) into the > root level > index_html. However, I don't want to make the above SQL > method (or its > connection) available to content managers in the levels below > root (for > security reasons). > > The only solution I've come up with (and keep in mind that I've only > been using Zope for about 2 weeks) is to put the connection and method > in a folder under root. But then I can't figure out how to pull the > info contained in the subfolder up into the index_html at root. > > Any hints? > Make a folder on the root dir, maybe call it sqlMethods or something. Then make some SQL methods inside this folder. Let's say for instance, you've made a SQL method called "sqlSelectSomeRows" and you've put it in a folder named "sqlMethods" (which is in the root folder). Now let's also say you've also created a folder named "Content" off the root, and inside of it you've put a DTML method called "showmyrows". Inside showmyrows, you could refer to the sqlSelectSomeRows SQL method by doing this: <dtml-in "sqlMethods.sqlSelectSomeRows(user_id=AUTHENTICATED_USER.getUserName())" > User name: <dtml-var user_name> </dtml-in> Is this what you mean? > Thanks in advance for your help. > > _______________________________________________ > Zope maillist - Zope(a)zope.org > http://lists.zope.org/mailman/listinfo/zope > No cross posts or HTML encoding! > (Related lists - > http://lists.zope.org/mailman/listinfo/zope-announce > http://lists.zope.org/mailman/listinfo/zope-dev ) >

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Interfacing with Z SQL Method?
by Art Hampton 30 Nov '99

30 Nov '99

I'm having problems interfacing with an SQL method I've created. My method takes two arguments: ids:tokens:int="" limit:int="10" ids is a space separated list of news article category IDs (any if empty), and limit is the maximum number of articles I want returned. No problems so far, my method works as desired. Problem #1: My problem occurs with interfacing with the method. The auto-generated Z Search Interface can access the data just fine. But I want to create a document method which will call the SQL method. No query will have been performed at this point. I want to make a page which retrieves the category IDs of interest for the current user, and then uses that list for the ids parameter. I cannot figure out how I can set the ids parameter for the SQL method. My impression from reading the Z SQL Method guide is that the parameters are only taken from the variables given in the query (not applicable for the first view of this page), or from variables in the folder (which doesn't help me, since the ids vary with the user, not the folder). The following snippet of code works fine for the default arguments: <dtml-in SQL_GetHeadlineSummary size=20 start=qs> <dtml-var title> <UL><dtml-var body size=8 etc="..."></UL> </dtml-in> What do I need to do to get it to use values that I pass in? Or can I do that? Problem #2: I'd like to pull in the headlines (discussed above) into the root level index_html. However, I don't want to make the above SQL method (or its connection) available to content managers in the levels below root (for security reasons). The only solution I've come up with (and keep in mind that I've only been using Zope for about 2 weeks) is to put the connection and method in a folder under root. But then I can't figure out how to pull the info contained in the subfolder up into the index_html at root. Any hints? Thanks in advance for your help.

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RE: [Zope] how to clone an instance of a class into another locat ion?
by Michel Pelletier 30 Nov '99

30 Nov '99

> -----Original Message----- > From: Andy Pahne [mailto:ap@net22.net] > Sent: Tuesday, November 30, 1999 4:36 AM > To: zope(a)zope.org > Subject: [Zope] how to clone an instance of a class into another > location? > > > > I tried to add a method (cloneInstance) to my class (myClass) > that clones > the instance (myInstance) into another folder. I called the > method with the > link host/path/to/myInstance/cloneInstance. > > The methods code: > <dtml-call "manage_clone(this(),'clone',REQUEST)"> > > Which gave me the errormessage: > > The object copy_of_998-X does not support this operation ? What was the traceback? -Michel

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RE: [Zope] ZServer & Apache
by Michel Pelletier 30 Nov '99

30 Nov '99

> -----Original Message----- > From: Milos Prudek [mailto:prudek@nembv.cz] > Sent: Tuesday, November 30, 1999 8:59 AM > To: zope > Subject: [Zope] ZServer & Apache > > > Zope docs say I cannot have WebDAV unless I use ZServer. Does > that mean > that when I want to have my site at webspace provider and I > wand DAV, I > have to get a separate computer? Because such webspace provider would > most likely run Apache or IIS, and could not run Zserver on port 80 > since it would conflict with his standard webserver... Apache, for some unknown reason, intercepts some of the dav methods that should really be passed into zope. You have two options, run ZServer, or patch Apache with a simple patch. You could even go the extra mile and petition the Apache people to fix it! ;) -Michel

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