March 1999 - Zope - Zope lists

Zope.cgi error
by Daren Sefcik 31 Mar '99

31 Mar '99

I am trying to get Zope.cgi working (Apache 1.3.4) per the Zope source instructions. When I try to access http://somedomain/cgi-bin/Zope.cgi/manage I get the following error in the http-error log: httpd: [Wed Mar 31 14:52:45 1999] [error] [client 168.240.152.202] Premature end of script headers: /usr/local/www/cgi-bin/Zope.cgi Does anybody know what this means?? TIA, Daren

1 0

NotMail 0.1.0 and IMAPAdapter 0.1.0
by Michel Pelletier 31 Mar '99

31 Mar '99

Greetings, NotMail-0.1.0 and IMAPAdapter-0.1.0 have been posted to the prereleases area of the site: http://www.zope.org/Download/Prereleases/Mail These are first beta cuts. Both programs are also available in the public CVS. IMAPAdapter allows you to work with IMAP folders and messages in the context of an authenticated IMAP user. Using IMAPAdapter, it is very easy to build IMAP client functionality into your Zope site using DTML. NotMail is a simple web IMAP client that requires IMAPAdapter. Its mail purpose is to verify the operation of IMAPAdapter and to provide an example implimentation of IMAPAdapter's client functionality. NotMail is mostly DTML, and what Python there is is just specific to sending and replying to mail, all other functionality comes from IMAPAdapter. It is important to note that IMAPAdapter looks like a user folder to Zope, in Zope parlance, we call this a user database. It's not a user folder, because it doesn't not contain users. If Zope tries to validate a user against an IMAPAdapter, the IMAPAdapter will contact the IMAP server, try to make a connection with the uid:pwd that the browser supplied, returning either a user object or None, depending on the success or failure of that connection attempt. This means that using IMAPAdapter is quite simple. Here is a snip of DTML to display all an IMAP users mail folders with the #tree tag.    <img src=>   ()     The user object that IMAPAdapter returns (if the user is valid) is placed into AUTHENTICATED_USER. emapFolderTree is one method of this user object, but there are about a dozen or so more methods to do various imap related things like adding/deleting folders and listing and fetching messages. If you plan on installing and trying out NotMail and IMAPAdapter it is important to know that you can configure the roles that IMAPAdapter associates with users that it returns. The two default associated roles are 'NotMail' and 'IMAPUser'. If you want NotMail to work, you will need to add one of these roles (or any roles you care to define as IMAPAdapter's default roles) somewhere above NotMail/IMAPAdapter and then assign that role the 'View' permission for NotMail's DTML Methods. Have Fun! -Michel

1 0

RE: [Zope] URL problems.
by Michel Pelletier 31 Mar '99

31 Mar '99

> -----Original Message----- > From: Tim Hawes [mailto:tim.hawes@ncmail.net] > Sent: Wednesday, March 31, 1999 7:49 AM > To: Zope List > Subject: [Zope] URL problems. > > > I just installed Zope on a Netscape Enterprise Server (3.6). > I compiled > and installed the nscgiauth plugin, and all seems to run OK, > except for > one thing: > First off, your the first person (I think) that has come forward with the information that they are using any version of NES higher than 2.0, which is what the nscgiauth plugin was written for. As I have heard (but don't know) there were some significant changes between the 2.0 and higher versions of the NSAPI. So, that you got it to work at all is pretty good. > When I try to add items to the site through the manage screen, I get: > > Not Found > > The requested object does not exist on this server. > The link you > followed is either outdated, > inaccurate, or the server has been instructed not to > let you have > it. Please inform the site > administrator of the referring page. > > When I open the frame into a new window, I see that the URL looks > something like: > > http://www.foo.bar.net/Zope/GATE/manage/.?%3Amethod=manage_add > DTMLDocumentForm > > When I edit the URL by hand to remove the "." > This is unreported behavior, which leads me to think that nscgiauth needs a little tweaking. As nscgiauth is unsuported you will have to experiment with this a little. >http://www.foo.bar.net/Zope/GATE/manage/?%3Amethod=manage_addDTMLDocume ntForm >It works fine. What is going on here, and what do I need to do to change >it? I plan on having other people from other departments access resourses >on Zope to create their own objects, and I need this to work right out of >the box. If your looking to showcase this and you can't spend any time working on nscgiauth, I would suggest using either Apache, ZServer, ZopeHTTPServer, or IIS, all of which Zope runs out of the box with. -Michel >Thanks in advance for any help. >Tim Hawes >tim.hawes(a)ncmail.net _______________________________________________ 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 )

2 1

Zope+Virtual Domains
by Daren Sefcik 31 Mar '99

31 Mar '99

Can the Zope server provide virtual domains or do I need to use Apache?? Right now I have Apache set up with 4 virtual domains and would rather just use the default Zope httpserver. Daren

1 0

RE: [Zope] Namespace Confusion
by Richard Wackerbarth 31 Mar '99

31 Mar '99

I think that you missed my point. "I" can write python just fine. However, every time something changes, new python functions must be written. It is desirable to allow "DTML programmers" to do simple things which they can accomplish with simple local variables. What I think I should do is create a function, "LOCAL", similar to REQUEST that stores temporary variables. Unlike REQUEST, LOCAL would be bound to the namespace multiple times, each with a different context stack.      The total basket will cost   Or perhaps we can trick the namespace into showing basketTotal without the LOCAL.get reference. On Wed, 31 Mar 1999, Shaw, Howard wrote: > Given your needs, I suspect a simple External Method would serve > better... > > What about the local variable? > > Any ideas?

1 0

One week of Zope-expirience
by Tom Deprez 31 Mar '99

31 Mar '99

Hi all, First of all, thanks to all with their great support and help. At the end of last week I found out about Zope. It looked really interesting, so I wanted to give it a try. Monday after several problems and with lots of help I could manage to enter Zope. Not from Apache as I would like, but from the HTTPServer. Next I wanted to attach Zope with my PostGresSQL demo database. Boy, did it gave me some problems (and all because of my lack in knowledge of Linux). But again several people helped me and today it is solved! Yep, it is done, the hard work can begin. Now, I've to convince other people that Zope is the way to follow. At first blink, Zope is a really nice and great product. I hope it will get the attention it diserves. Still, some work on the documentation, although they already did a great job! Most thingies are written down. Kind Regards, Tom. Now some questions: 1. Have you used CSS-sheets in Zope and how did you use them? Did you incorporated them into Zope or not? Have you got a little sample?

3 2

Re: [Zope] external methods
by Service Informatique CHSR 31 Mar '99

31 Mar '99

Hello, >Well, this is an interesting question. In my experience, seldom do people >try to munge the DTML namespace from within an External Method. I guess it >could be done (perhaps by passing the special underscore variable to an >External Method), but I wonder if this is really the best way to solve your >problem. Thanks for your answer. In fact, I want to write external methods to replace DTML methods which work like a charm, but are not very readable (a lot of iterative stuff, given the fact that mySQL doesn't support sub-select) and pretty slow. I have used python for several years right now, but DTML is new for me. My users can search in our news database in several ways, that are covered by different SQL queries. However, the output of all these queries are the same, so I use a single DTML method to display the result. So the name of the ZSQL Method is only known at runtime, and I use something like:  to display the result. The arguments of the query are taken from the namespace. I can also write:      If I want to cook some args before feeding it to the query. All these work from DTML. Now, I want to write this in an external method. def results(self): for record in getattr(self, self.REQUEST['query'])(self): pass # do watever 'query' has to be in the form REQUEST variables (that is not a problem), but I cannot be sure that any arguments that the query need are all accessible through REQUEST. >Well let's see what's going on here. You call my method, it acquires the >REQUEST object and looks for a 'my_var', doesn't see it and returns >'boooo'. so far so good. Now you push a namespace containing only 'my_var' >on to the DTML namespace stack and call the method again. Not surprisingly >the method does the same thing as before, it acquires the REQUEST and finds >that it does not contain 'my_var' so it prints 'boooo'. Finally you call >'my_var' which is found in the DTML namespace and 'my_value' is printed. I wrote this to test wether an external method has access to the entire namespace, or only to REQUEST variables. >So the lesson is: the DTML namespace is not the same thing as the REQUEST >object. So I come back with the question: is there any way to access the DTML namespace from an external method. Apparently there is not >For more on how DTML namespace works see my advanced DTML how-to: > >http://www.zope.org/Documentation/HowTo/DTML > I have already read it. By the way, let me ask you a question (again. I already asked that, but the answer was not very clear, and I finally gave up):  and  are the same. So instead of writing:    I usually write:    But almost everyone told me that  also work. So I wonder: are  and  the same??? The DTML User's guide say that in an expression, variable are not called by default, but _['var0'] calls var0 if possible. >My advice to you is to keep things simple. It's easy to confuse yourself >with the complexities of DTML. In general, I would suggest that your >External Methods take well defined arguments and return results, rather >than modify the objects passed to them. Then allow the DTML to pass those >arguments and munge its own namespace in response to the results of the >External Method. Of course, this schema isn't always the right one. Finally >I would suggest that you, don't munge the DTML namespace from within an >External Method unless you have a good reason to, I think that this would >make the DTML even harder to understand. To keep things simple mean I have to write several times the same external method with different queries and differents arguments each time. this is not what I want. I can remember that in DTML I only need one DTML Method. I would really like to replace some of my DTML Methods with external methods. That's enough for today. Let's take some rest :-) Regards, Jephte CLAIN, Service Informatique CHSR

1 0

RE: [Zope] Frustrating
by Shaw, Howard 31 Mar '99

31 Mar '99

First thing, if your product is broken you won't get anywhere. So, first step is to delete the broken product, and shutdown and restart your zope server. This is because Zope apparently won't replace a broken product with a working one. If it is still broken, click on it, and then on the screen that comes up, look for the 'traceback' tab on the top of the screen. Copy this traceback and mail it to the list. If your product no longer says broken, then you will be able to go to a folder above where you want to use SQL methods, and from the pull-down menu beside the add button, choose to install the SQL Adapter. I don't know for certain the format for the connection string, but if you go to <zope_homedir>/lib/python/Products/ and look in the directory for the ZPyGreSQLDA and read the top of any *.py file you see, it should say. Once you have a working adapter, you can add an SQL Method, and it will list your adapter's id on its list of db connections. >From this point on the documentation in the SQL Guide should be sufficient. Good luck! Howard C. Shaw III Programmer/SysAdmin St. Thomas High School > ---------- > From: Tom Deprez[SMTP:Tom.Deprez@uz.kuleuven.ac.be] > Sent: Tuesday, March 30, 1999 4:28 AM > To: zope(a)zope.org > Subject: [Zope] Frustrating > > Hi, > > I'm getting really frustrating on this subject. Pff, I believe the > Zope-people have made already a great effort in their documentation. > So I > guess my problem is my own bad english. shhg. > > I finally got the Postgressql adapter compiled, thanks to two great > people! > Thanks for this already. > > But now I'm confused? How to use it in Zope? When I go to the product > management I see the all the installed products including : > ZPyGreSQLDA > (broken product APyGreSQL).... I guess here is already something wrong > (broken... is not a positive word :-( ) > > But then, how can I work with it? How can I use it in Zope...? How can > I > add it to the 'Add list' . I read of a connection string... but where > to > place it? > > Sggh, I've read in the manuals, Q&A, ... but I still don't get how to > use > it.... > > Please, somebody, help...! > > Thanks in advance, > > The Idiot, > > Tom. > > _______________________________________________ > 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 ) >

5 4

Ideas about implementing a dynamic site?
by Mark Interrante 31 Mar '99

31 Mar '99

I am thinking about implementing a dynamic site using zope and as little python as I can get away with. The site is modeled after http://c2.com/cgi/wiki?WikiWikiWeb This is a dynamic site in that all the web pages are dynamically generated and you are allowed to edit any page right from your browser (sound familiar?) and also create new pages very easily. There are many other implementation of wikiwiki (see the WikiWikiClones link). I am interested in any creative ways of dynamically generating the pages and storing the underlying date in the objectDB. Thanks! Mark === ==================================================== Mark Interrante Hewlett Packard mark(a)interwalk.com <or> mark_interrante(a)hp.com _________________________________________________________ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com

1 0

RE: [Zope] External Methods
by Shaw, Howard 30 Mar '99

30 Mar '99

Try >  > <td></td> > <td></td> >  > You can't nest the 's. Howard C. Shaw III Programmer/SysAdmin St. Thomas High School > ---------- > From: JB[SMTP:jimbag@kw.igs.net] > Sent: Tuesday, March 30, 1999 1:27 PM > To: zope(a)zope.org > Subject: [Zope] External Methods > > Please excuse my lack of zoping intuition but I hoped someone could > help > with this problem. I read all the doc's I could find but seem to be > missing something. It goes like this... > I have a ZSQLMethod that returns some tuples. There is a field in the > tuple which I wish to use to lookup an external file and return a > jpeg, > if available. > I've created an external method called 'getPic' which I wish to pass > the > key field to locate the file with but I can't seem to get at the > variable. > e.g > ---------- >  > <td></td> > <td> )" --></td> >  > ---------- > > This doesn't work for reasons not obvious to me. > > I've tried creating a class to handle the records. No go. > Basically, the External method can't get at the vars defined on each > loop thru the sequence returnd from the SQLMethod. > > Any insight would be appreciated. > > thanks > jb > > _______________________________________________ > 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 ) >

1 0