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Re: [Zope] Organizing Zope Content
by James W. Howe 14 Jan '00

14 Jan '00

Anything's possible. It's too soon to tell at this point, however. I would certainly like to if it shakes out (and if management approves). At 01:16 PM 1/14/00 -0800, you wrote: >Are you thinking about making this available as a product? > >-jfarr > >~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ >Hi! I'm a signature virus. >Copy me into your .sig to join the fun! >~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > >----- Original Message ----- >From: James W. Howe <jwh(a)allencreek.com> >To: <zope(a)zope.org> >Cc: Maik Roeder <roeder(a)berg.net> >Sent: Friday, January 14, 2000 1:04 PM >Subject: RE: [Zope] Organizing Zope Content > > > > Following some advise from Maik and Michel concerning ways to organization > > my Zope content to support a news web site I think I'm evolving toward a > > solution that I like. I would like to explain it here a little bit just to > > get feedback. > >[snip] > James W. Howe mailto:jwh@allencreek.com Allen Creek Software, Inc. pgpkey: http://ic.net/~jwh/pgpkey.html Ann Arbor, MI 48103

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RE: [Zope] Arguments to DTML methods
by Michel Pelletier 14 Jan '00

14 Jan '00

> -----Original Message----- > From: coder(a)kanga.nu [mailto:coder@kanga.nu] > This is pretty hokey, especially when I invoke "custom_segment" half > a dozen times in a single template or method. Is there a better > way to fake passing arguments to a DTML method? You don't need to fake it, because all DTML objects _can_ be passed arguments. <dtml-var "aMethod(aMappingObject, aClient, arg1, arg2...)"> 'aMappingObject' is a mapping containing the current 'namespace', or the namespace you want this method to use. This is often '_' (the current DTML namespace) 'aClient' is an object you want to provide the namespace for this method. This is often '_.None' (no client object) They rest are all keyword arguments. This is the most common usage: <dtml-var "aMethod(_, _.None, bob='uncle')"> Note the double quotes, they are important. -Michel

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Re: [Zope] Arguments to DTML methods
by J C Lawrence 14 Jan '00

14 Jan '00

On Fri, 14 Jan 2000 16:24:48 -0500 Michel Pelletier <michel(a)digicool.com> wrote: >> From: coder(a)kanga.nu >> This is pretty hokey, especially when I invoke "custom_segment" >> half a dozen times in a single template or method. Is there a >> better way to fake passing arguments to a DTML method? > You don't need to fake it, because all DTML objects _can_ be > passed arguments. Ahh. Is this buried in the DTML guide or am I going blind? I read that thing three times last night looking... > <dtml-var "aMethod(aMappingObject, aClient, arg1, arg2...)"> Excellent. > They rest are all keyword arguments. This is the most common > usage: > <dtml-var "aMethod(_, _.None, bob='uncle')"> > Note the double quotes, they are important. Thanks. I just got bit on that point last night in using a dtml-let to assign a string to a variable. It wasn't obvious from the DTML guide that I needed to nest single quotes in a double quotes ala: <dtml-let variable="'text'"> -- J C Lawrence Internet: claw(a)kanga.nu ----------(*) Internet: coder(a)kanga.nu ...Honorary Member of Clan McFud -- Teamer's Avenging Monolith...

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Epoch time use
by Jerry 14 Jan '00

14 Jan '00

I should have mentioned : ZopeTime() There have been several messages re. to this topic, timezone issues, and GMT (Greenwich Mean Time) in the last few days. Scan up the list to get some ideas. Even though the title doesn't seem related, some of the "REQUEST.set not incrementing" messages have ZopeTime examples. Later, Jerry S.

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RE: [Zope] Organizing Zope Content
by Maik Roeder 14 Jan '00

14 Jan '00

Hi ! I would propose using ZClasses from the start for your project. > > I'm looking for ideas on how to structure my content. For > > example, one of > > my pages needs to display headlines with little snippets of > > the article > > itself. Clicking the headline would cause the full article to > > display. You have the domain object article. A newsitem is just a view on the articles. Articles should be contained in a controller you can call something like ArticleFolder. > > What I want to be able to do is build a structure > > such that I > > could iterate over items, pick up headlines, and generate the > > headlines > > page dynamically. You can create a Folder on your site like "News". Inside, you use a view created by a ZCatalog to show articles with headlines. > When you have a collection of objects you want to iterate over, it is > useful to put them in a container-like data structure, like a Folder. I would put the Articles inside an ArticleFolder ZClass, in which Article ZClasses are managed. > In your case, I think you can do everything you need by just placing all > of your articles in a Folder. If the folder was called 'Articles' you > could do very simple iterative manipulations using the <dtml-in> tag. > > <ul> > <dtml-in Articles> > <li><a href="<dtml-var absolute_url>"><dtml-var title_or_id></a><br> > <dtml-var sequence-item size=200></li> > </dtml-in> > </ul> If you use ZClasses, this is a view of the ArticleFolder. > This will print a link to each article, showing 200 characters of the > objects body (This assumes your article objects are DTML Documents). I would say that the representation is the task of the Article itself and only partly of the ArticleFolder. The article should be able to create different view on itself based on what type of content it contains. If the Article is html, use the HTML_View, and it it is structured text, the Article uses the Structured_Text_View. > As an added hook point, you can write a DTML method that you pass the > object to: > > <dtml-in Articles> > <dtml-var "displayArticle(_['sequence-item'])"> > </dtml-in> This view method can be placed in an ArticleFolder ZClass. > If you place Articles and displayArticle in your root folder, then they > will be accessable from anywhere in your Zope, all objects in the root > folder are acquireable from all objects in Zope (note, when you drop to > python, you have to play by the rules of the Acquisition mechanism). I don't think it is very nice to clutter the root folder with all kinds if views. It is much nicer to have the views in the appropriate ZClasses. > > It is also a requirement of this site that it can > > display previous editions of the web site. For that I would > > like to be > > able to invoke my headlines in such a way that it could > > generate different > > headlines depending on which issue of the news publication > > was desired. > > Here the catalog can help you. If all of your article objects are > cataloged in a ZCatalog object, then you can do a very fast range search > over all of the objects' creation dates. > This is used on the Zope site > on the advanced search page when you pull down the combo box to do a > range search of objects created after a certain fixed point in the past > (day, week, month, year, ever). If your Articles are ZClasses, then you can perform a Catalog search for all ZClasses with meta_type "Article". You can also search for all ArticleFolders. This is best if you create one ArticleFolder for each issue of your Newspaper. > The problem is that as your articles change, you need to keep cataloging > and recataloging them so that the catalog tracks any changes in the > object. > This is where things get tricky and you start developing an > application, because you need your own kind of object to do that. This > is when you should investigate ZClasses. There's a couple how-tos on > the Zope site on how to make your own kind of catalog aware objects. The ZClasses Article and ArticleFolder would be ZCatalogAware, and when changed they can update the Catalog automatically. > > Any tips on how I might structure my content (basically news > > articles) As I said, you would have an ArticleFolder per edition, or per week or month. > and > > how my presentation layer might be able to utilize the > > content would be > > appreciated. The presentation is handled by the ArticleFolder Views and the Article Views. > Make sure that all your major components are seperated from each other > and use each other without strange dependencies (like assuming a path to > a component, why assume when it can be acquired?). You should make the ArticleFolder intelligent, and the Article dumb. The Article only knows how to provide representations of itself, and the ArticleFolder is responsible for managing the Articles inside. > Keep collections of > similar objects in folders by themselves. Just like Michel says. > It is generally a good idea > to keep methods related to certain types of objects in the same place as > the folder that contains those objects. With ZClasses you don't have these problems. > Use your root folder wisely, Luke. Don't use the root folder, Luke :-) The ideas I have described here are already used by the ZDP-Tools, which I have written for the Zope Documentation Project together with Tom Deprez. http://zdp.zope.org:8080/ZDP/ The site is currently down, so you'll have to check back later. I would like to discuss the design with you, so if you are interested, contact me personally or maybe just add your comments on the ZDP-Tools right on the zdp.zope.org:8080/ZDP/projects/zdptools/ in the Comments Section. Greetings, Maik Röder roeder(a)berg.net

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Re: [Zope] Sybase error: Products.SybaseDAv2.db.Error: ct_command():
by Chris McDonough 14 Jan '00

14 Jan '00

Hung, Please keep the posts on the list... We may have missed a datatype when coding the adapter. This is going over my head, that's for sure. If this is the case, I'd suggest submitting a Collector report on Zope.org about it with all the information you've given so far on the list. We'd very much appreciate it so we can fix it when time allows. In the meantime, change the datatype to something that's supported and see what happens. Sorry and thanks, Chris Hung Jung Lu wrote: > > OK, more information privately. > > The datatype in question is > > CONSTANT(CS_DECIMAL_TYPE); > > which has value 17. This datatype does not appear in sy_occbf.c > > switch(element_type) > { > case CS_TINYINT_TYPE: element_size=sizeof(CS_TINYINT); break; > case CS_SMALLINT_TYPE: element_size=sizeof(CS_SMALLINT); break; > case CS_INT_TYPE: element_size=sizeof(CS_INT); break; > case CS_REAL_TYPE: element_size=sizeof(CS_REAL); break; > case CS_FLOAT_TYPE: element_size=sizeof(CS_FLOAT); break; > case CS_MONEY_TYPE: element_size=sizeof(CS_MONEY); break; > case CS_MONEY4_TYPE: element_size=sizeof(CS_MONEY4); break; > case CS_DATETIME_TYPE: element_size=sizeof(CS_DATETIME); break; > case CS_DATETIME4_TYPE: element_size=sizeof(CS_DATETIME4); break; > case CS_NUMERIC_TYPE: element_size=sizeof(CS_NUMERIC); break; > case CS_BIT_TYPE: element_size=sizeof(CS_BIT); break; > case STRING_CASES: break; > default: > return SybaseError("Invalid buffer element type"); > } > > What's the appropriate action to follow? > > regards, > > Hung Jung > > ______________________________________________________ > Get Your Private, Free Email at http://www.hotmail.com -- Chris McDonough - Digital Creations, Inc. Publishers of Zope - http://www.zope.org

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Arguments to DTML methods
by coder＠kanga.nu 14 Jan '00

14 Jan '00

Given that DTML methods don't accept arguments, is there a simple way to work around passing custom data to a DTML method? I currently have a number of DTML methods that encapsulate HTML fragments (mostly table segemts) that I use often in almost macro fashion. I've broken them out into their own methods as I use the same fragments across mutliple templates folders etc. The text in the HTML segments needs to passed in for each invocation (eg table headers, cel values, etc). Currently I'm wrapping all calls to the DTML method in dtml-let's to define the arguments for the called DTML method: Given a DTML method called, "custom_segment" which looks something like: ...yada... <dtml-var custom_text> ...yada... I invoke it as follows: <dtml-let custom_text="'this is some text'"> <dtml-var custom_segment> </dtml-let> This is pretty hokey, especially when I invoke "custom_segment" half a dozen times in a single template or method. Is there a better way to fake passing arguments to a DTML method? -- J C Lawrence Internet: claw(a)kanga.nu ----------(*) Internet: coder(a)kanga.nu ...Honorary Member of Clan McFud -- Teamer's Avenging Monolith...

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RE: [Zope] add[Folder, DTML Document]
by Michel Pelletier 14 Jan '00

14 Jan '00

> -----Original Message----- > From: Bill Scherer [mailto:scherbi@bam.com] > Sent: Friday, January 14, 2000 2:56 PM > To: zope(a)zope.org > Subject: [Zope] add[Folder, DTML Document] > > > I've written a simple index_html method that allows me to > subvert Zope's > folders to create a url directory. the method iterates through > objectValues(['Folder', 'DTML Document']). If the object has > a property > 'url', it displays it as a link, otherwise, it's a folder and is > displayed as a link to move into that folder. It's simple and works > well. > > My problem is that I'd like to simplify adding links and folders. For > now, I've been using the management interface to do so. I'd like to > build my own. I was able to create an addFolder method, and it worked > fine except that it returned me to the management view of the folder, > instead of the standard public view of the folder. Are you calling manage_addFolder? Try calling it with a REQUEST=None keyword argument. In DTML it would be: <dtml-call "manage_addFolder('aFolderName', REQUEST=_.None)"> This will cause you not to be redirected. -Michel

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RE: [Zope] cut & past failing
by Michel Pelletier 14 Jan '00

14 Jan '00

> -----Original Message----- > From: Bill Scherer [mailto:scherbi@bam.com] > Sent: Friday, January 14, 2000 2:46 PM > To: zope(a)zope.org > Subject: [Zope] cut & past failing > > > I'm using Zope 2.1.2, with zserver on linux, and my cut and paste > doesn't work. > > I can cut/copy something, and when the page reloads, I have a paste > button, but when I click it, I get an error saying "no clipboard data > found". If instead I navigate to another folder, I have no paste > button. > > Any ideas? Cutting and pasting is based on cookies, do you have cookies enabled? -Michel

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Refer to sequence-index within SQLmethod?
by Jerry.Spicklemire＠IFLYATA.COM 14 Jan '00

14 Jan '00

Hi Folks, My latest quandary is finding a way to refer to a Zope variable that is automajically created by a SQL Query from within SQL itself. I tried including sequece-item as an argument in the ZSQL Method Edit Window, and found out that the Test window doesn't know what I mean by : sequence-index , "sequence-index" , "_['sequence-index']" , or "_.namespace['sequence-index']" . Is there some sorcery required, or is this just not possible? Thanks, Jerry S.

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