December 2000 - Zope

RE: [Zope] Windows NT, Zope, PostgreSQL, PoPy, and ZPoPyDA
by Farrell, Troy 14 Dec '00

14 Dec '00

Right now, I have PostgreSQL 7.0.3 on Cygwin: $ uname -a CYGWIN_NT-4.0 hostname 1.1.6(0.30/3/2) 2000-11-21 21:00 i686 unknown I followed the instructions found here: http://people.freebsd.org/~kevlo/postgres/portNT.html I haven't bothered with PoPy yet, but using the --with-odbc option seems to work. I am using the PostgreSQL 6.5 ODBC driver and am using ZODBCDA to connect to PGSQL over ODBC. I will keep you posted as I progress. Troy

1 0

Core Session Tracking Development Release 0.1
by Chris McDonough 14 Dec '00

14 Dec '00

Hi, A development release of the fruits of the "core session tracking" Fishbowl project (http://dev.zope.org/Wikis/DevSite/Projects/CoreSessionTracking/FrontPage) is available at http://www.zope.org/Members/mcdonc/Products/CoreSessionTracking. It allows you to keep state across requests for anonymous users (much like FSSession, SQLSession, HappySession, etc.), but it is capable of storing sessioning data in the ZODB or in RAM. You need to be running a pretty recent Zope 2.2.X to use it. I've tested it continually against the current trunk release, and it works against that. Feedback appreciated! Thanks, Chris

1 0

Re: [Zope] site structure
by Dieter Maurer 14 Dec '00

14 Dec '00

Nuno Goncalves writes: > How can we define a structure for an entire site with Zope ? > for example i want that all the site's pages have a table with 3 > colums. it's kind of a template for the web site ! As others told you, you can use a header and footer to standardize layout. The header would define the top and left part of your site (i.e. your first table column); the bottom your right part of the site (i.e. the third table column) and the bottom part. The content between header and footer would define the center of the page (i.e. your second table column). If this does not provide enough flexibility, you can look into ZClasses. The page specific content would go into properties or content items of the ZInstances. The ZClass' "index_html" would combine all these elements into the final page. Dieter

1 0

Re: [Zope] How to debug access denials?
by Dieter Maurer 14 Dec '00

14 Dec '00

Stephane Bortzmeyer writes: > I have problem with Zope security model and I would like to know the > best way to debug Zope when access is denied. > > I have two experimental sites: on one of them, anonymous users can go > everywhere. On the other, the permissions *look* exactly the same but > anonymous users can only see the home page and are denied access to > subfolders (more precisely, Zope asks a password). I assume one DTML > method, in the second site, is doing something forbidden (anonymous > has "View" and "Access content information"). > > Is there a way to get an extended log, such as "anonymous user denied > because index_html called standard_html_header which called getData > and getData is a database connection and they don't have permission to > use database connections"? I have read in this list (-> searchable list archive), that Shane's ZDebug product can help to analyse access problems. I had never need to try it for myself, though. Dieter

1 0

Re: [Zope] Object adding strangeness
by Dieter Maurer 14 Dec '00

14 Dec '00

Geoffrey L. Wright writes: > So I've created a simple little product to dynamically manage CSS. It > consists of three ZClasses and the arrangement looks something like > this: > > STYLEn_containerClass > \ > \--> STYLEn_styleClass > \ > \--> STYLEn_stylePropertyClass > > .... creating "STYLEn_stylePropertyClass" instance overwrite > "title" property of folder (containing STYLEn_containerClass instance) > ..... > ...... > <dtml-with "STYLEn_stylePropertyClass.createInObjectManager('color', REQUEST)"> > <dtml-call "REQUEST.set('value','#000000')"> > <dtml-call "propertysheets.STYLEn_stylePropertyClassPropertySheet.manage_editProperties(REQUEST)"> > <dtml-call "manage_editProperties(REQUEST)"> > </dtml-with> > ..... I expect the "manage_editProperties" is the culprit. I further expect that neither of your classes has a "manage_editProperties". Therefore, the "manage_editProperties" of the enclosing folder is acquired. It changes the properties of this folder. Dieter

1 0

RE: [Zope] site structure (fwd)
by sean.upton＠uniontrib.com 14 Dec '00

14 Dec '00

Getting fairly familiarized with namespaces and acquisition is going to be useful here. You actually will need to do 2 templates (one for the footer, and one for the header) in the case of writing a "wrapper." That said, objects in Zope (like a document, in this case) behave based upon their context or environment. A DTML document, when it is told to render something with <dtml-var name="foo"> looks for foo in it's current namespace (i.e. the folder it is in), and if it doesn't find it, it then works its way upward (by looking in the namespace of the folder that is the parent of the folder it just looked in before). When it finds foo, it renders that method (or if foo is an attribute, it renders its value). Let us suppose that your document is called bar, and looks like this: <html><body> <dtml-var name="foo"> </body></html> bar is in a folder hierarchy that looks like this (using URL syntax) http://mysite.com/folder1/subfolder/bar bar would first look for foo as an attribute of it's own namespace (i.e. it would look to see if you defined a custom property called foo in the properties of the document). If it found it, it would render it, but let's suppose that it does not find it, so it has to look in another namespace. So, it moves up to the next namespace (subfolder) looking for foo, as either a method of that folder or a data member (attribute). If it finds it, it renders it. If not, it moves up to folder1 as the next namespace, and perhaps that is where it finds foo; in that case it renders foo. Seems rather simple, and in some cases it is, but what if foo is a dtml method and looks like the following? <h1>Title:<dtml-var title></h1> Where does foo look for title? Not in folder1, where foo resides, but in in bar's namespace, and indeed, since dtml documents have a title attribute, that will be rendered. If, instead of title, we had an attribute named something like "what" but there was no attribute named "what" in bar, it would look through the namespace stack (starting with the namespaces of bar, then subfolder then folder1, then the root folder, etc), until it found what it was looking for. This, I hope, explains acquisition well. If you were to apply this to templating strategies, you would realize, that (as long as you kept standard_html_header and standard_html_footer in sync) that you could do some powerful things with your site navigation. Consider the following example: Suppose you have a sports news site, and you publish stories about baseball, football, and basketball. In the upper right hand-corner of your document (i.e. in the header portion) you have an 32x32 icon image that is a picture of a football, basketball, and baseball, respectively. Otherwise, you wanted to use the same template for all of the documents. Suppose that you have a folder structure like this: -/ -basketball -baseball -football In this case, you could have a standard_html_header in the root folder / that creates the top portion of your document, so you only have to use one template, and that the template might have code that looks like this:  <dtml-var name="sports-icon.gif">  In this case, you could have an image in each folder (basketball, football, baseball) containing an appropriate image with the id of sports-icon.gif. This is useful, because now, one template is rendering sports news stories different folders differently, depending upon the context of the folder they are contained in. In this simple example, you don't even need to create a different standard_html_header for every folder to create different results, but can rely upon Zope's built-in acquisition smarts to work for you. Applying this in practice, takes some playing around with, but once you get a clear idea of applying this, you can create some very intelligent standard_html_headers that do a lot of work for you. Hope this helps, Sean -----Original Message----- From: Nuno Goncalves [mailto:nuno@fccn.pt] Sent: Thursday, December 14, 2000 10:19 AM To: Oleg Broytmann Cc: Max M; Zope@Zope. Org Subject: RE: [Zope] site structure (fwd) > > But how could you build a page with the template developed ?? > > something like: > > <dtml var template(COMPONENTS LIKE HEADER AND FOOTER AS ARGUMENTS)> > > and how can you generelize the objects to beeing used by the template ? > > No, no, no! :) > You misunderstand how the Zope works. You think that basic building > block is a piece of HTML (probably you think to put it into DTML > Documents). No. In Zope basic building block is "instance of some python > class". A DTML Document is an instance of DTMLDocument class, e.g. > If you develop your own set of classes, you'll just build Zope sites > creating instances of these classes - you put HTML fragmenst just into > these instances. Zope will call your objects, you don't need to use DTML to > call them. humm !!! I see now !! So i can have a general structure for all my site and when create a page, specifying the template to use and consequently adding the objects that i want ?? Nuno > > Oleg. > ---- > Oleg Broytmann http://www.zope.org/Members/phd/ phd(a)phd.pp.ru > Programmers don't die, they just GOSUB without RETURN. > > _______________________________________________ Zope maillist - Zope(a)zope.org http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )

1 0

Re: [Zope] charset from forms input
by Dieter Maurer 14 Dec '00

14 Dec '00

Matt writes: > ... browser does not send "charset" parameter for "form" data ... > POST /hi HTTP/1.0 > ... > > Content-type: multipart/form-data; > boundary=---------------------------17670043309955870831526446972 > Content-Length: 180 You should not expect a "charset" parameter to the "multipart/form-data" content type. The parameter can appear in each single part (when applicable) not the multipart wrapper. HTML 4.0 specifies: As with all multipart MIME types, each part has an optional "Content-Type" header that defaults to "text/plain". User agents should supply the "Content-Type" header, accompanied by a "charset" parameter. > ... detecting used charsets ... We use UTF-8 and ISO-8859-1 encodings. Our experience is, that browsers use the encoding for form posts that they used to display the form itself. Of cause, the browser must have been explicitly told, which encoding it has to use for form rendering. Otherwise, it uses the default encoding (defined by the user). To be precise: If we send a page (containing a form) to a browser with a "Content-Type: text/html; charset=UTF-8" HTTP header, then we will get the form data back in an UTF-8 encoding. If the page has instead a Content-Type: text/html; charset=ISO-8859-1" HTTP header, the delivered form data is encoded in ISO-8859-1. This is as I would expect it to be. Dieter

1 0

rss
by Andy McKay 14 Dec '00

14 Dec '00

Ok, ive seen lots of products and ways of creating RSS files, but I havent been able to spot one that reads other peoples (eg ZNN, Slashdot). Is there such a product? -- Andy McKay, Developer. ActiveState.

4 7

Build a website
by Pierrick PONS 14 Dec '00

14 Dec '00

Hello again, I have another question: my aim is to build a web site (using Zope) to put it at my Internet Provider 's . Would it be possible with Zope or maybe Zope is not the good application to do so ? I've heard about arena, bluefish .... Thanks a lot Pierrick

1 0

RE: [Zope] site structure (fwd)
by sean.upton＠uniontrib.com 14 Dec '00

14 Dec '00

You may also want to take a look at HiperDOM as a templating mechanism as well. I haven't used it, but in looking at the Wiki and the examples, it looks like it would do what you are looking for, and from all accounts I have read, this will be the "official" Zope replacement for DTML for presentation logic in the future (relegating DTML for logic use, along with Perl and Python methods), and has a lot of cool features that allow you to create a template with mockup data that actually renders your presentation, replacing the mockup. http://www.zope.org/Members/lalo/HiperDom I'm working on a content-management project in which I am just starting to do real user interface work, and I am likely going to try switching over most of the presentation from DTML to HiperDOM. Anyway, creating valid XHTML documents for templates is an exciting idea, especially in the sense that this decreases the learning curve for a designer needing to work on presentation, but not logic - that is a definite need in my organization. Cheers, Sean -----Original Message----- From: Nuno Goncalves [mailto:nuno@fccn.pt] Sent: Thursday, December 14, 2000 9:51 AM To: Max M Cc: phd(a)mail2.phd.pp.ru; Zope@Zope. Org Subject: RE: [Zope] site structure (fwd) i see !!! i have just found a package ZopeFish that has ZFSuite. ZFSuite has an object (ZF document template) that defines a layout and structure for the entire site. More info at http://www.zope.org/WikiCentral/ZFWiki still i installed it (it is a bunch of libs) but i haven't tested it ! if i get it work i will tell you thanks On Thu, 14 Dec 2000, Max M wrote: > From: Oleg Broytmann > > >> But that way if i want to change the structure, i have to change on every > >> page. > > > No, you only need to change 2 places: standard_html_header and > >standard_html_footer :) All Documents that use these header/footer will be > >rendered using new structure. > > I think you misunderstand him. He is actually right. > > Some things are pretty hard to do in zope, because of the header/footer > principle. > > Making a global look to a site can be pretty difficult if it doesn't fit > nicely into a header/footer structure, with a main area being the pages' > unique content. > > If I where to do it in regular Python I would use special classes for > special layouts. That is hard to do in Zope. > > Regards maxm > > Max M. W. Rasmussen, Denmark. New Media Director > private: maxmcorp(a)worldonline.dk work: maxm(a)normik.dk > ----------------------------------------------------- > Specialization is for insects. - Robert A. Heinlein > > > _______________________________________________ > Zope maillist - Zope(a)zope.org > http://lists.zope.org/mailman/listinfo/zope > ** No cross posts or HTML encoding! ** > (Related lists - > http://lists.zope.org/mailman/listinfo/zope-announce > http://lists.zope.org/mailman/listinfo/zope-dev ) > > _______________________________________________ Zope maillist - Zope(a)zope.org http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )

1 0