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Running ZEO on a single server -- advisable? Why?
by Paul Howell 20 Oct '03

20 Oct '03

Back in August, runyaga wrote: >you should never go into production without ZEO. >you should never add live components / migrate a plone server / pack >ZODB on a server that serves requests. >~runyaga Does this ZEO suggestion even apply on single server zope machines? Is this standard operating procedure? Is it written up anywhere as such? I have run naked Zope on some boxes for years without problems, and Zope behind Apache. But I'm currently setting up some new boxen and would like to know the rationale for using ZEO on them. Do you run ZEO on standalone boxes? What are the advantages? What are the disadvantages? Does it make a difference with dual processor servers? Thanks, =Paul

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Zope Advice for Java Man
by Jon Whitener 20 Oct '03

20 Oct '03

At 05:28 PM 10/17/2003, you wrote: >Dear Jon Send further questions to the Zope mailing list zope(a)zope.org. I can't promise I will have time to answer your further questions. >Sorry for taking your time, but I am looking for advice by someone with practical Zope/Python experience. I have 20 years of experience in computing and worked mainly in Java for the last 8 years after using more exciting languages and have a lot of experience in OO, database modelling, knowledge engineering, etc. At the moment I am starting to learn Python and Zope. I wanted to do this for some time, but recently I got in touch with a musician who is interested in a music database application(*). Thus, I thought I'd take my chance and do this in Zope. After reading quite some material about Zope I am still hesitating how to approach the problem. Should I use ZODB or MySQL? You don't have to choose. You can use Zope and MySQL in tandem, via a Zope Database Adapter, which allows transfer of data to and from an external database if you wish. It depends on your database needs. A thread on this subject: http://mail.zope.org/pipermail/zope/2003-September/140708.html >DTML or ZPT? ZPT (plus Python scripts). >I want to make sure that the database is safe and can be backed up. ZODB is easy to back up (you just copy the Data.fs ZODB file). Don't know about others. >Can I access the ZODB using Python programs? Yes. >How does this work? Don't know. >Should I first learn Python or Zope? You will end up learning Python as you learn Zope. Zope is written in Python. >Can I convert an Excel sheet to read into Zope? Don't know, but search the Internet, and I'm sure you'll find something about it. >How can I program for Zope without being restricted by its Web interface (I am using eclipse for Java development and that is much different from hacking little bits of code in various Web forms)? Look into Zope Products, written in Python. See http://zope.org/Documentation/Books/ZopeBook/2_6Edition/CustomZopeObjects.s… >What would you suggest for a good solution and how do I learn the required skills in the shortest amount of time? Best Python book I know: "Python: Visual QuickStart Guide" from Peachpit Press. Instant answers to your questions. >Are there good comprehensive examples to look at? It seems that I learn best from looking at other people's code. Zope is open source, so you can examine every line of code. Zope.org provides custom products others have written, which are also all open source. >I am sorry if I trouble you, but you seem to know the matter very well and understand the needs of someone interested in practical solutions. Good luck. I hope you will enjoy Zope as I do. Use zope(a)zope.org for further questions. You will find the list quite responsive. >Thanks a lot and kind regards André Meyer Delft, The Netherlands > >(*) This is about pieces of old music that are played in various instrumental settings. One query is to search for combinations of pieces with a given set of instruments in order to prepare for a concert. The interface needs to be easy to handle and avoid re-entering the same information more than once (e.g. a composer or publisher). Therefore, I foresee that comboboxes are used a lot for selecting previously entered values/objects. The application first used on a personal workstation, but may be made available for multi-user access (eventually contributions) on the Web later on.

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RE: [Zope] Zope Advice for Java Man
by Meilicke, Scott 20 Oct '03

20 Oct '03

You can also use COM on windows to talk to excel. You will need to have excel installed on your windows server. Scott -----Original Message----- From: Dylan Reinhardt [mailto:zope@dylanreinhardt.com] Sent: Monday, October 20, 2003 3:45 PM To: Jon Whitener Cc: Zope Users Subject: Re: [Zope] Zope Advice for Java Man On Mon, 2003-10-20 at 13:00, Jon Whitener wrote: > At 05:28 PM 10/17/2003, you wrote: > >Can I convert an Excel sheet to read into Zope? Yes. Convert your spreadsheet into CSV and use Python's excellent csv modules to suck it in. You'll need to do this in an external method or Python product and will probably need to install csv first. See: http://www.object-craft.com.au/projects/csv/ HTH, Dylan _______________________________________________ Zope maillist - Zope(a)zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev ) The information contained in this email message may be privileged and is confidential information intended only for the use of the recipient or any employee or agent responsible for delivering it to the intended recipient. Any unauthorized use, distribution or copying of this information is strictly prohibited and may be unlawful. If you have received this communication in error, please notify the sender immediately and destroy the original message and all attachments from your electronic files.

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Migration Strategy
by Edward Pollard 20 Oct '03

20 Oct '03

We're moving some content from Zope 2.6 to 2.6.2, and I'm wondering what the best way to do this would be. In the fantasy world that is my mind, I think I'd be looking for a way to safely lock the ZODB in the 2.6 instance, so we can migrate to 2.6.2 while still serving (unchangeable) content from 2.6. Does such a concept exist? --- Edward J. Pollard University of Lethbridge Web Development

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creating objects in dtml?
by Ted holden 20 Oct '03

20 Oct '03

I have a python class which I've set up as a zope product and which shows up as such. Now, products installed this way don't show up on menus, so I've more or less followed the instructions and created a product with a zclass which subclasses the installed python product and, sure enough, this zclass shows up on menus. The next step was to create a folder with a dtml page and an instance of the zclass in it, and use the instance of the zclass in the dtml page, and that works. Nonetheless, ultimately, that doesn't seem to be what I want. Unless I'm missing something, that creates a single instance (object) of the class for good and all. I see print statements from the constructor the first time I ever bring the page up; afterwards, the object is still there, but it isn't being created. The systems seems to be saving it. What I really need is for a user to open a dtml page and create (his/her) object in doing so, and then use it. I assume it's possible to do that in dtml but I don't see any descriptions of how to do it. I'd appreciate hearing from anyone who knows how this is done.

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Zope and attribute tag question
by John Slate 20 Oct '03

20 Oct '03

Good day, Our company has been using a ZOPE driven website for over a year now ( http://www.hr.ucdavis.edu/Emp/All <http://www.hr.ucdavis.edu/Emp/All> ) but recently switched to a database driven page that you can see at the enclosed link. My question is pretty simple: I have submitted some attribute tags to the website that only defined some color tags to the table. I have been told that because this page is "database driven", the changes cannot take effect. This seems absolutely ridiculous to me and totally unsupported by logic. Does anyone more familiar with ZOPE have any ideas as to why simple attribute tags could possibly cause such problems? ***************************** John Slate, jbslate(a)ucdavis.edu UC Davis Human Resources Employment & Outreach Services (530) 752-5029 ***************************** I dwell in Possibility-- A fairer House than Prose-- More numerous of Windows-- Superior--for Doors-- *****************************

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help with groups support
by Matthew Thorley 20 Oct '03

20 Oct '03

I want to add support for groups to my zope site, but I don't know whats the best way to go about it. There are so many groups products available. Could someone please suggest which ones works the best (for them) and why. Idealy I would like to import my groups from a unix group file. Thanks very much in advance -matthew

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Zope Corp. career opportunity
by Brian Lloyd 20 Oct '03

20 Oct '03

Hi all, Zope Corporation is looking to hire an experienced Linux System Administrator: http://www.zope.com/Corporate/CareerOpportunities Our ideal candidate would have experience deploying and maintaining Zope-based sites - I figured there might be a few people with that kind of experience on this list :^) If you are a zopista who might be interested in this position, please contact us at careers(a)zope.com. Thanks! Brian Lloyd brian(a)zope.com V.P. Engineering 540.361.1716 Zope Corporation http://www.zope.com

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Soap and Zope and DMOZ data dump?
by Sean Kelley 20 Oct '03

20 Oct '03

I need help implementing SOAPMethod 2.0.0. In particular, I want to display DMOZ.org data on my web site. Has anyone done this? I don't know the difference between SOAP and RPC and have not done much with Python. I did have my ISP install PyXML and SOAPpy so now I can add soap methods. I attempted to add one from http://wsdlfeeds.com/feeds/6/ and was able to pull a reply which was general: Reply is... Category Information for Top/Sports/Equestrian/Dressage/Directories/Horse_SalesNarrow and Symbolic combinedWarmbloods - Sales and ImportExternal links for this categoryDressageWBclassifiedFreedom Farm Dressage CentreHeronwood Stables How do I display and list more data such as Title, URL, Description, etc.? Do I need to write a python script to do this or is there a way to use dtml to list this info via the SOAP method?

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RE: [Zope] deleting objects through a dtml-call
by Katie Legere 20 Oct '03

20 Oct '03

I want to delete a file in Zope: I've iterated through the files in a folder and when one meets a certain condition I'd like to get rid of it ... I've been using <dtml-call "manage_delObjects()"> but need to tell it the file to delete I've tried <dtml-call "manage_delObjects(this())"> <dtml-call "manage_delObjects(this.getID())"> <dtml-call "manage_delObjects(REQUEST.getID())"> and several other suggestions but am getting nowhere. What do I need to pass to delObjects() ??? Kate

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