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How to generate an Object ID automatically
by zopist 15 Sep '00

15 Sep '00

dear zopists, im a zope newbie and i have one of those little problems ppl like me can spend hours on ... i just built my first ZClass and now im trying to automatically assign a generated ID to an instance of this class in the -add method. i want to generate the id because there is no unique fieldvalue available and i dont want to have the users get stuck on this point. another problem i encountered is that when i try to add an instance in a folder i get an authentication box where no valid login is accepted i would really much apreciate if someone could help. Francisco (chico) Webber

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Re: Pluggable Brains
by Dieter Maurer 15 Sep '00

15 Sep '00

gotcha(a)swing.be writes: > Quoting : > > > > But it is incredibly simple: > > > > You can wrap an arbitrary class instance around your > database rows. > > This transforms your rows into full featured objects with > > the columns (among others) as attributes and the methods > > defined by the class as potential behaviour. > > > > > > What elso do you need to know? > > > > > How and where you define those pluggable brains ? You must know Python. You write a Python class, say "myClass" with all the extra attributes you like and all methods you may want to use for your database rows. You put the class into a source file, say "myExtensionFile" (or import it there). You place the file inside the folder "Extensions" (or, to keep namespaces separate, into an "Extensions" subfolder of a product). Then in the "Advanced Tab" of Z SQL methods, you say: I want to use class "myClass" from source "myExtensionFile" as custom class. That's it. Now, the rows retrieved by your query are "myClass" instances and have all additional attributes and methods you defined. Dieter

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Re: [Zope] Help with Zope 'pitch'
by Tony McDonald 15 Sep '00

15 Sep '00

Damn! Sorry about that - trouble with fingers and a local Zope list....sigh tone ------ Dr Tony McDonald, FMCC, Networked Learning Environments Project http://nle.ncl.ac.uk/ The Medical School, Newcastle University Tel: +44 191 222 5116 Fingerprint: 3450 876D FA41 B926 D3DD F8C3 F2D0 C3B9 8B38 18A2

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Re: [Zope] Help with Zope 'pitch'
by Tony McDonald 15 Sep '00

15 Sep '00

At 11:35 am +0100 15/9/00, L.Doyle(a)salford.ac.uk wrote: > I hear Zope learning >curves are steep, so I wonder if anyone can suggest how I can persuade >Managers that it is worth investing time and effort. To do many things is dead easy. This includes things like database lookups and reuse of web page 'components' (think of them as server-side-includes). The learning curve comes about because of the very different way that Zope works - and this is almost solely down to Object-Orientated principles. For example, in a static web site, you create an index.html page in every folder in your web site. If you have 2000 folders, then you need 2000 index.html files (or index.php3 or whatever). With Zope, you can have *one* index.html file at the top level of your web hierarchy that would do for all your 2000 folders. In folders that are special, say admin folders, you can change the index.html to be something else. You can also lock that file down so people need to authenticate to get into the folder. Suppose your web site is composed something similar to this; admin contacts internal external research contacts internal external undergrad contacts admissions courses year1 ... year5 postgrad contacts admissions courses taught year1 research year1 ... year5 (extend this out as much as you like) You can see there's a lot of duplication there. Using Zope, You can effectively 'create' those 2000 folders by simply writing out a URL, such as /postgrad/courses/taught/year1/action. The 'action' part will collect all the components together and create a composite web page. This is where some of the learning curve kicks in, as what you need to do to use Zope to greatest benefit is to look for commonality and uniqueness amongst all the components you are collecting together. >Can anyone say in >a few paras what Zope can do and what its benefits might be (lay >language appreciated); I've probably gone way over the top there, but essentially you get to create dynamically rich *maintainable* web sites in a very short period of time. These web sites can be broken into logical chunks, that allows for very easy distributed management. eg in 'admin' above, you pass off the management of that 'branch' to someone else. If they then create an internal section of admin, they can also pass off responsibility of that part to someone else. >also any anecdotes of how long it took to get to >grips with it. I had some people come to the Med School on a Sunday and had them creating pages that were built from components in about 20 minutes. By the end of the afternoon they had several pages made and one or two had pages that were doing a database lookup. > Is it worth using it for a Web site that is >predominantly static pages (with ambitions for development)? There are some excellent 'products' (think plugins) that can mirror a static web site quite happily. You can then add the dynamic parts as you gain in confidence. I'm specifically thinking of the LocalFS product. >Still a Web Novice but working on it - Linda Doyle! not for long we hope... Tone ------ Dr Tony McDonald, FMCC, Networked Learning Environments Project http://nle.ncl.ac.uk/ The Medical School, Newcastle University Tel: +44 191 222 5116 Fingerprint: 3450 876D FA41 B926 D3DD F8C3 F2D0 C3B9 8B38 18A2

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Re: [Zope] SQLRelay vanish ??
by Roman Milner 15 Sep '00

15 Sep '00

>>>>> "DG" == Didier Georgieff <dgieff(a)divinerites.com> writes: DG> Hello, Since several days, the {HYPERLINK DG> "http://www.firstworks.com/"}http://www.firstworks.com/ web DG> site is unavailable. (SQLRelayDA and SQLRelayDA). DG> Any information about the SQLRelay future, and download site ? DG> Thanks. Didier. sqlrelay is still very much alive. I'm gonna do a new release of the DA soon, with a lot of important fixes. The lead devloper for sqlrelay moved and had to take down the site for a while. There are some sourceforge pages that are available in the interim. You can get sqlrelay at: http://sourceforge.net/projects/sqlrelay/ And you will also need the rudiments library from: http://sourceforge.net/projects/rudiments/ There is also now a sqlrelay mailing list at egroups.com. ^Roman

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(Correction) Re: Adding a new property over http
by Jon Franz 15 Sep '00

15 Sep '00

In the previous email, this line: <dtml-call "manage_addProperty(NewName, NewValue)"> Should have been: <dtml-call "manage_addProperty(NewName, NewValue, 'tokens')">

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Re: Adding a new property over http
by Jon Franz 15 Sep '00

15 Sep '00

Heres a snip of DTML that adds a property to the parent if the property doesn't exist. If you create a ZClass with this, it will modify the parent folder when called from within a DTML document, if you do it as a DTML Method, it will modify the parent document. >>> <dtml-if "hasProperty('z_count')"> <dtml-call "REQUEST.set('z_count', z_count + 1)"> <dtml-call "manage_changeProperties(REQUEST)"> <dtml-else> <dtml-call "manage_addProperty('z_count', 1, 'int' )"> </dtml-if> <<< Now, if you wanted to Take a variable in a form (or link), and make it a property like in your example, you're method would look like this, Assuming the form had fields to pass the values as 'NewName:string' and 'NewValue:tokens', or your calling link ends with ?NewName:string=foo&NewValue:tokens=mytokens >>> <dtml-if "hasProperty(NewName)"> <dtml-call "REQUEST.set(NewName, NewValue)"> <dtml-call "manage_changePRoperties(REQUEST)"> <dtml-else> <dtml-call "manage_addProperty(NewName, NewValue)"> </dtml-if> <<< I hope this helps! Now if only someone could answer why the behaivor changes between having it as a DTML method and a ZClass! (And how to fix it!) Message: 5 From: "Jason Cunliffe" <jasonic(a)nomadicsltd.com> To: <zope(a)zope.org> Subject: [Zope] Adding a new property over http Date: Thu, 14 Sep 2000 15:00:41 -0400 charset="iso-8859-1" Hello I asked this in longer form before, but it fell by the way I think.. How to add a property to a containing folder. Looking for DTML or External Method way to do this. We need a Method to to add a new folder property assigning an 'Id' = <somename> adn 'type' = 'tokens'. We need to be able to do this by passing the variable <somename> over http. thanks - Jason

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Connecting to a remote Oracle Server: thanks for the help!
by Celio Guimaraes 15 Sep '00

15 Sep '00

Dear DCOracle experts: Thanks for your expeditious help! As a beginner Oracle user I had no idea that it was sufficient to edit properly the tnsnames.ora file in order to connect to an external server. Your hints also helped me to debug a client only Oracle 8 installation! Celio Guimaraes Institute of Computing Unicamp SP Brazil

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Python 1.6 makes Zope not work?!
by zope＠steven.com.hk 15 Sep '00

15 Sep '00

I was running Zope 2.2.0, and python 1.6a2 on linux. When I upgraded python to 1.6 release, I found that I can't run Zope again(Can go to the first, very simple page, and no further). The error msg are: WARNING: Python C API version mismatch for module ExtensionClass: This Python has API version 1009, module ExtensionClass has version 1007. WARNING: Python C API version mismatch for module zlib: This Python has API version 1009, module zlib has version 1007. ...... I tried to upgrade Zope to 2.2.1, but the same happened. What can I do? Also, I can't find any newsgroup to search for answer, nor can I find any info from zope.org. If there is another more appropriate place to ask such question, pls tell me. thx. Regards Steven zope(a)steven.com.hk

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sendmail ---problem!!!!!!!!
by Suhail Murtaza 15 Sep '00

15 Sep '00

hi everbody.... I am trying to make the <dtml-sendmail > work since last two days. Tried every possible way n all the help i could find on the internet but was unsuccessful.. I tried two syntax(which i hve given below> ...while first one does send the mail but with subject,to and body field blank and the other simply doesnt work and gives the SMTP error of <domain name required>>> and i hve configured the the MailHost3 properly...... the codes i hve used is below......(these i have copied directly from dtmlmethods) 1>>>####################################################### <dtml-var standard_html_header> <dtml-sendmail mailhost="MailHost3" mailto=" <suhail(a)morelinux.com>" mailfrom="suhail <suhail(a)morelinux.com>" subject="A new Snippet has been added to ZDP !"> Dear Rik ! Under the following URL, a Snippet has been added: Have a nice day, The SnippetClass constructor (http://zdp.zope.org/Control_Panel/Products/DocumentFolderProduct/SnippetCla…) Content: hello how r u and what u do? </dtml-sendmail> ur mail has been send <dtml-var standard_html_footer> ################################################## this just sends the comletey blank mail.... I also used "subject" outside like(subject: ----).but it too didnt work. Second syntax i used is ........ ******************************************************** <dtml-var standard_html_header> <dtml-sendmail mailhost="MailHost3"> To: suhail <suhail(a)morelinux.com> From: vikas <vikas(a)morelinux.com> Subject: A new test ! Dear suhail ! Under the following URL, a Snippet has been added: Have a nice day, The SnippetClass constructor (http://zdp.zope.org/Control_Panel/Products/DocumentFolderProduct/SnippetCla…) </dtml-sendmail> <dtml-var standard_html_footer> ********************************************************* This way it is throwing an dtml method exception that domain name not specified.... the error message it gives is as follows...... @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ An exception occurred in a DTML method or document. Error type: SMTP Error Error value: Recieved error code 553 from SMTP: 553 <None>... Domain name required Innermost method: None Namespace Stack (innermost entry at top) ID Type (N/A) mapping with keys: ['document_id', 'document_title'] testfolder InstanceDict REQUEST ZPublisher.HTTPRequest.HTTPRequest @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ >>>>> So any kind of help will be highly appreciated... Plzz bring me out of this nightmare....:( With regards Suhail

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