November 2000 - Zope

RE: [Zope] Search and replace
by Lee Hunter 22 Nov '00

22 Nov '00

Martin Winkler wrote > I just wanted to express that this feature may be too hard to > program for > the (IMHO) rare cases that we really need it, but IF there I had understood that Python and Zope excelled at string manipulation. That's why I am surprised that it would be difficult to scan a folder full of documents to find a word and replace it with another (with the option of ignoring anything in pointed brackets). I'm not a programmer so I probably don't appreciate the complexities of the task, however in this case it seems like the object-oriented database is a hindrance rather than a help. If it was just a batch of html files I could search and replace through them with just about any piece of software on my desktop. I wouldn't know whether this is the sort of tool that is generally useful, but in my work I use search and replace all the time (if only to fix my endless confusion over 'its' and 'it's') Cheers Lee Hunter Hum Communications Ltd.

8 11

Pseudo E-Mail Address validation
by Martin Winkler 22 Nov '00

22 Nov '00

Hi all, For a subscription tool of a mailing list I'd like to quick-check the e-mail address our users type. Is there a little product/method etc. available that does this? I know that you can only be sure whether an e-mail address exists or not, when you actually send a mail to the user, but a quick-n-dirty check would be nice. Maybe even complete RFC-compliancy as implemented in some Perl-Modules? (spaces, "@" sign, dot-notation etc.) Hoping for an answer, Martin

4 4

DTMLTemplate + PythonMethod == separate code from HTML?
by Thiebaut CHAMPENIER 22 Nov '00

22 Nov '00

In fact, I find it too hard to code something using DTML, that's why I'd like to use good old python and to keep only variable substitution in my HTML (dtml-var, or maybe just &dtml-my_variable; which is an easier to use form of it, or maybe replace it with @my_var@ or smth like that, which I would find even easier!) I'd like to be able to delimit blocks in an HTML file and to use these blocks from a python program, the goal is to completely separate the code from the design (HTML). With DTML, the code and the design are mixed. it would look like this: def index_html(_): "Display a list of items taken from the products database" if not check_password(): return bad_password_page query_result = my_zsql_query(_) if not query_result: return my_template.no_result result = ReturnStream() result.add( my_template.header ) for line in query.result: result.add( my_template.one_line, line ) result.add( my_template.footer ) and my_template would be an HTML file with <dtml-block> tags that delimit the header, one_line and footer blocks. The one_line block would use some variables defined in the line dictionary; for example: <dtml-block one_line> <tr><td>@item@</td><td>@quantity@</td><td>@price@</td></tr> </dtml-block> The DTMLTemplate and PythonMethods products seem to provide this kind of separation between code and design, but I did not manage to get them working properly together: DTMLTemplate: when I display a block (using <dtml-var "my_template.my_block">), the HTML tags in my_block appear quoted, should I use a fmt="html" or something like that to avoid the quoting? PythonMethods: how can I access Zope objects from my method? Typically I'd like to call a template block from my method, but just using my_template.my_block doesn't work. As you can see, I'm not a Zope guru, but I'm willing to learn! I believe that Zope and PTK have a big role to play in the current portal and application servers war... ready to use portal-in-a-box products cost around $100,000... so for that price you can use zope and afford more consulting and coding services! BTW, currently I'm experiencing a problem: no images (icons, ZopeButton etc..) appear on my management pages, images stored in the ZODB are ok though. any idea where are those images like http://localhost:8080/p_/ZopeButton ? Thanks for your time!

2 1

Support for PHP?
by Ben Ocean 22 Nov '00

22 Nov '00

Hi; I'm reading *the book* and it appears that Zope supports Perl and Python but *not* PHP :(( Well, I'm learning Python and I have a limited but working knowledge of PHP: I really *don't* want to have to learn Perl because, although there's lots of stuff out there written in Perl, PHP (IMHO) is better suited for the Internet than Perl. (I don't mean to offend any Perl officionados out there.) So... Is there, or will there be support for PHP? Will I be able to somehow cobble an interface between Zope and my PHP programs? Also (without getting too far OT) can I do pretty much anything I can do in PHP in Python? TIA, BenO

4 3

is it possible to see whether any user is using a perticular zope object
by subrahmanyan kalathur 22 Nov '00

22 Nov '00

hi, I got your reply. thanks. Actually my problem is not that. I am doing some web based stuff. So it is natural that more than one users can access the same page at the same time. So in my project, if such a situation comes then at least one user will get the error message. To avoid that I am planning to block one user until the other gets the complete page downloaded. So if it is possible to see whether the method is used by another user, then I can block that new user until the first user completes his task. How can I use <dtml-var REQUEST> tag for that. OR do u have any other alternative solution. I will be grateful to u. thanks bye yours, K.H.Subrahmanyan ( subrahmanyan.kalathur(a)wipro.com )

2 1

RE: [Zope] Having troubles starting Zope. Now FIXED!
by Dany Rioux 22 Nov '00

22 Nov '00

I fixed it. All I had to do was reinstall the zope .deb and it started alright. The content is still there (though I was almost scared to death having thought of doing backups AFTER the reinstallation) and all is good. Well, almost. Now that it's fixed and all is back to normal, I will try to find what caused this. *crossing fingers* I'll let you know if I find something. Dany ---.oo0O--------------O0oo.-------- Dany Rioux UnderSoft Business www.dating-reviews.com rdany(a)dating-reviews.com Personal www.drioux.com rdany(a)drioux.com -------.o00O-------O00o.-----------

1 0

Re: [Zope] ZClass/DTML Document transparency
by Dieter Maurer 22 Nov '00

22 Nov '00

Randall Kern writes: > .... > In the case of DTML Documents, the following works fine: > > <dtml-var sequence-item> > > In the case of ZClasses, I have to use something like this: > > <dtml-with sequence-item> > <dtml-var index_html> > </dtml-with> > .... > But this is rather ugly, and it's the sort of thing one shouldn't have = > to do in an oo system. I understand you, but in all "oo" systems, you can avoid this only if both objects have the same method. In Zope, DTML objects have a "__call__" method which is called automatically. ZInstances do not have a "__call__" method. What suggests to you, that these too should be unified is the fact, that ZPublisher does it. If an object has a "__call__", it is used; if not, "index_html" is called, if it exists. You may look at the mixin "ZCallable". I do not know what it does but the name suggests, it might perhaps help you. Dieter

2 1

RE: [Zope] Having troubles starting Zope. Now: compiling Zope
by Dany Rioux 22 Nov '00

22 Nov '00

I don't really care about my end :) Only the user's :) But I think it would be a nice idea to implement. I'll give it some thoughts. Dany -----Original Message----- From: ucntcme [mailto:ucntcme]On Behalf Of Bill Anderson Sent: Wednesday, November 22, 2000 6:14 AM To: Dany Rioux Subject: Re: [Zope] Having troubles starting Zope. Now: compiling Zope Dany Rioux wrote: > > Ok, so running dns/imap/mail/apache/zope/samba/nfs/mysql/snmb/sshd and all > the rest of the normal services running (not forgetting the php/cgi/etc > modules of apache) and compiling shouldn't be a problem? :) > > I have to admit the box is not receiving that much traffic but I wouldn't > want to slow things more than I have to. In my case, I picked a time when I knew traffic would be lower, and there were no issues. YMMV. If your browsers are not on the local LAN, but through modem, they probably wouldn't notice much, if any change, all things being equal. :) Bill -- E PLURIBUS LINUX

1 0

RE: [Zope] Having troubles starting Zope. Now: compiling Zope
by Dany Rioux 22 Nov '00

22 Nov '00

Ok, so running dns/imap/mail/apache/zope/samba/nfs/mysql/snmb/sshd and all the rest of the normal services running (not forgetting the php/cgi/etc modules of apache) and compiling shouldn't be a problem? :) I have to admit the box is not receiving that much traffic but I wouldn't want to slow things more than I have to. Dany -----Original Message----- From: ucntcme [mailto:ucntcme]On Behalf Of Bill Anderson Sent: Wednesday, November 22, 2000 5:54 AM To: Dany Rioux Subject: Re: [Zope] Having troubles starting Zope. Dany Rioux wrote: ... > About installing from source. I don't really have anything against that but > the linux box running zope is a P133 w/ 64 MB RAM... It's not a power > compiler if I may add :) so compiling the kind of app zope is makes me think > of compiling X. About an hour or so. I don't really want to get a too tight > grip on the machine's load. I've compiled several Zopes on my p133, sometimes more than one at a time, no problems. :) Of course, it depend son what _else_ the machine may be doing. Mine was running mail/dns sevrer at the time, not much else really. -- E PLURIBUS LINUX

1 0

Re: [Zope] Question about security
by Harris Peter 22 Nov '00

22 Nov '00

Dieter wrote: >Joaldo Junior writes: >> Does anyone can inform if is there any kind of function, >> which a common user can change your password by the same way a superuser can >> do in ACL_User? >Look at the built-in Zope API reference: User object. >The User object has methods to read and change the information >associated with a user. >These methods are (of cause) protected such that only >users with high priviledges can execute them. >You will need to set a proxy role for the DTML object >that calls them, in order to allow less priviledged users >to call them. >Dieter I'm sorry, I must be missing something. The API reference I have doesn't contain any such thing. Neither does the Zope book, before anyone else suggests that. The DTML on zope.org uses a method that isn't recognised by the standard User Folder, so no help there. If ANYONE has EVER successfully implemented a way for users to change their own passwords using standard 2.2 Zope then *please* - post your source code here or put a HOWTO on zope.org! It's a basic requirement of any system that uses passwords, but if it can't be done just admit it. After all, zope is still *quite* good without it. ;-) Peter Harris () **************************************************************************** This message and any files transmitted with it are confidential. The contents may not be disclosed or used by anyone other than the addressee. If you have received this communication in error, please delete the message and notify JBB (Greater Europe) Plc immediately on 0141-249-6285. The views expressed in this email are not necessarily the views of JBB (Greater Europe) PLC. As it has been transmitted over a public network, JBB (Greater Europe) PLC makes no representation nor accepts any liability for the email's accuracy or completeness unless expressly stated to the contrary. Should you, as the intended recipient, suspect that the message has been intercepted or amended, please notify JBB (Greater Europe) Plc immediately on 0141-249-6285. ****************************************************************************

2 1