October 2001 - Zope - Zope lists

need help to buid a "small ads" feature
by spy2＠netcourrier.com 09 Oct '01

09 Oct '01

Hi ! I don't know very well Zope and its products. But I want to create a "small ads" feature on my site. With it, the users could post and reply to ads. Do you know an existing product which could help me build this feature ? Thanks for your help...

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thanks for participating on my diploma
by Neunreither, Isabelle 09 Oct '01

09 Oct '01

Hi, in three days, i will have my last oral examination for my diploma about zope and xml. i want to thanks all people who had participated to my work and all who filled out my form. at this time, my diploma is only written in german. i will try as soon as possible to publish it on the web (i hope next week) and to translate a part of it in english and in french (i'm sure not next week :-) ). thanks a lot. Isabelle Neunreither konsylo Messeler-Park-Strasse 74 64291 DARMSTADT Fon: 0 6150 866 196 Fax: 0 6150 866 197 email: in(a)konsylo.com

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MySQL and/or ZODB
by Dirk Datzert 09 Oct '01

09 Oct '01

Hi All, I'm a little confused about the use of ZODB or MySQL. Can the ZODB completely removed by an MySQL database or can the MySQL database only be used for dynamic form data and the ZODB ist for more static objects like DTML-Documents or ZClasses ? Where is a good HOWTO for removing ZODB by MySQL ? Regards, Dirk

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Zope behind firewall.
by Jason C. Leach 09 Oct '01

09 Oct '01

hi, I'm having a bit of a problem sending files to the server through the web interface. I'm not FTPing, just creating a new file type. I can do everything else: edit, delete, access, move, ..., but I can not upload. I think it may be firewalling, but I get no error, and the file should be send via HTTP and that is open to the server or else I would not be able to edit the DTML docs? Does anyone know what this could be if it was a Zope problem? I just ported the Data.fs over from the old server. I went Zope 2.3.2 (source release, python 1.5.2, linux2) -> Zope 2.3.3 (source release, python 1.5.2, linux2) -- ...................... ..... Jason C. Leach .. PGP/GPG Public key at http://www.keyserver.net/ Key ID: 157BD48C

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FTP in Zope drops out
by Shane Rowatt 09 Oct '01

09 Oct '01

Has anyone had problems using ws_ftp to FTP images to their Zope server and find that the images are all truncated? (and yes i've tried auto and binary modes).

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Zope's FTP server.
by Jason C. Leach 08 Oct '01

08 Oct '01

hi, Does Zopes FTP server support both Active and Passive connections? If so can we set the ports for passive mode? And will it use the standard ftp-data port for active? Thanks, j. -- ...................... ..... Jason C. Leach .. PGP/GPG Public key at http://www.keyserver.net/ Key ID: 157BD48C

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Sending files.
by Jason C. Leach 08 Oct '01

08 Oct '01

hi, When I send a file or image to Zope via the /manage interface, how is the file sent? FTP or HTTP? Or other? Thanks, j. -- ...................... ..... Jason C. Leach .. PGP/GPG Public key at http://www.keyserver.net/ Key ID: 157BD48C

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Asynchronous DTML
by W. Robert Kellock 08 Oct '01

08 Oct '01

Hello, Does anyone know how to prevent an external method from blocking? What I need is an external method that contacts an external server and returns the result to be displayed in my dtml page. It's quite alright for the person requesting the page to wait for the response. What I don't want is for other users to be blocked while the external server formulates it's response to that user. >From the archives it seems I need to piggyback onto Zopes asyncore / asynchat to achieve this, but I'm not sure how. Thanks. ------------------------------------------------------------------------------------------------------------- W.Robert Kellock Ph: +64 3 326 6115 Sales Manager Fax: +64 3 326 6115 Credit Systems Control Ltd Web: www.creditscore.co.nz "making decisions easy" -------------------------------------------------------------------------------------------------------------

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a simple design problem, a Zope bug and a fix
by Ivan Kurmanov 08 Oct '01

08 Oct '01

Hi, Here I have several things to report. The message might get long, but that is what I have to say. I hope very much that someone of Zope developers/maintainers is keeping an eye on this mail-list and will forward my message to a responsible person. First, the Problem. A section of my zope-based site might have folders and even without folders it is not a single-layer structure. To explain: if I have an object "O" in folder "F", we access it as "http://site/F/O" (0). If we have a sub-folder 'SF' in 'F', we access object "O2" in it by "http://site/F/SF/O2" (1). But even without "SF", if we call a method 'M' on object 'O', we already have a three-level URL: "http://site/F/O/M" (2). I create a simple navigational bar for my project that lives in /F. For that I create the standard_html_header in /F. Here is the problem: how do I create a consistent link to the Home of the section - to the "/F" folder? And to several methods of it? Of course I could simply hardcode it into a usual HTML link, e.g. <a href="/F/method1">. But that solution is not for a responsible person. I want site to be exportable and to stay consistent even if I move it around. Imagine that I rename /F to something else and will have the main navigational links get broken. I could have put simply a relative link <a href="./"> for the /F folder. But that link will not anymore be valid in cases (1) and (2), because their context is deeper and it would (could) instead send user to "http://site/F/SF" and "http://site/F/O" respectively. Similarly it may seem that relative links to reference a method in /F folder are fine, e.g. <a href="method1">. But what if want those links to yield the same result ("http://site/F/method1") independently of what particular page user has clicked them on! While in cases (1) and (2) user will get two other different results. I understand that probably there is a solution to the problem, which is well-known to experienced Zopers, but for me it was a challenge to solve. The Solution: (a) Regarding home-folder methods. Your methods are objects and you can use "url" attribute on them. In DTML entity notation it may look like this: <a href="&dtml.url-method1;">...</a> This will find an existing 'method1' in '/F' folder and will always generate a correct link to it, unless you also have a 'method1' object in one of your subfolders. This solution will also NOT work if you need to reference a method which doesn't exists as a DTML method object or python script object, but which is defined internally by Zope classes or by a Zope Product. (in particular, all 'manage_...' methods) (b) In the home folder ("/F") you create a special object, which will serve you as a point of reference, and which will return you the URL of the folder it lives in. You than take this URL and you can append any document or method names to it. What kind of object can do this? I tried several kinds of... The simplest solution that I found is a single-line Python script: return container.absolute_url() Script must lie in the home folder. Then you reference it like this in your standard_html_header: "<a href="&dtml-home_folder_url;/method1">, assuming that the script's id is 'home_folder_url'. In principle, it seems that things like this: <dtml-var expr="container.absolute_url()"> in /F/standard_html_header must work, but it doesn't work stably on my installation. And it may be a bit too inelegant for use it in the <a href="..."> tag. Secondly, the Bug. And now we came to a bug description: I claim that absolute_url() method of the Traversable class has a bug, at least in Zope 2.4.1 The bug causes incorrect URL returned sometimes when a it is executed on an aquired object. For instance, if in object /F/O I evaluate self.container.absolute_url() what I get will depend on the request context: if the requested url was: "http://site/F/something", then the URL returned in object O will be fine: "http://site/F" if the requested url was: "http://site/F/SF/something", then the URL returned *might* be "http://site/F/SF/something/F". *Might* here means that if the absolute_url() is executed in a Product class definition, it will go wrong, but if it is executed from a python script (like the one above), it will work fine. I suppose that has something to do to with the context (namespace) transfer to python scripts. Finally, a fix: I'm far from well-understanding the change I made to the Zope code, but it works better for me now. I attach to this message a patch for Traversable.py file. Any comments welcome. Cheers! -- Ivan Kurmanov

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modified by...
by Chris Kratz 08 Oct '01

08 Oct '01

Hello all, Has anyone found an easy way to display the name of the last user to modify a dtml document/method? On certain pages I would like to display who last modified it with the date and time. It would essentially be the last record on the undo page. Any ideas? -Chris ------------------------------ Chris Kratz chris.kratz(a)vistashare.com

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