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RE: [Zope] Accessing DOM nodes from python: how?
by Passin, Tom 22 Dec '02

22 Dec '02

[ Catonano] > I saw a javascript accessing a value put in a html tag like this: > > > <TD ID= "blah"> > Td contents > </TD> > > or something similar. > > Javavascript could read that "blah" > > Now, how can I do the same from python? Can I? > I am not at all sure what you want to do. When the javascript script accesses that value, it is operating in the browser. Python will be in the server. Why should it access the page at all? If there is data to be sent to Python, just send it the data. The page, in fact, will not actually exist for Python to "access". Only after your python scripts are done will the page be fully assembled. If you mean that you want to write some python code that you feed an html page to, that is not how you would normally use Zope. If you want Python to access a web page and retrieve some data from it while it is processing a REQUEST, that is best done using an external method. There are a variety of ways to process a web page, but it is not always easy, given the amazing range of invalid html code that exists out there. Sometimes it is easiest to use regular expressions, and sometimes it is easiest to use the sgmlop parser (you have to write a handler, but that is not too hard depending on what you need to do). Or you can turn the html page into xml using HTML Tidy, then use xml processing on the page. If you do this and use the PyXML beta (or maybe it is still alpha) package, you can get access to the W3C DOM API, and access the page element content that way. Cheers, Tom P

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Content mgt for non-technical people
by Robert Wielinga 22 Dec '02

22 Dec '02

Hello, I am very new to Zope, but am impressed about the way it enables you to formalise site logic and the look and feel. However in the short time I've been using Zope, it does not seem to be a very suitable environment for non-technical people to add content to the site. Preferably, I would like people to be able to create new or modify existing content items, possibly with some workflow, without them having the need to edit html/dtml documents. For example, a content editor is presented with a form for each content type, where he can enter the relevant data in plain text and when the form is submitted, the data is entered as Zope objects in the zope server. Did I overlook some features in Zope or are there readily available modules that accomplish this? Do I have to build it myself? Regards, Robert

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RE: [Zope] Content mgt for non-technical people
by sean.upton＠uniontrib.com 21 Dec '02

21 Dec '02

One word answer: Plone. http://plone.org <http://plone.org> . A Zope/CMF CMS realization/UI/add-on product - works (and works well) out of the box, and a bit of tweaking, codeing, and some experimenting will get you much, much more. Has a well-thought-out UI design, and binary installers/controller apps for several platforms. There is also a plone-users mailing list that is very active. Sean -----Original Message----- From: Robert Wielinga [mailto:rwielinga@hotmail.com] Sent: Saturday, December 21, 2002 2:56 PM To: zope(a)zope.org Subject: [Zope] Content mgt for non-technical people Hello, I am very new to Zope, but am impressed about the way it enables you to formalise site logic and the look and feel. However in the short time I've been using Zope, it does not seem to be a very suitable environment for non-technical people to add content to the site. Preferably, I would like people to be able to create new or modify existing content items, possibly with some workflow, without them having the need to edit html/dtml documents. For example, a content editor is presented with a form for each content type, where he can enter the relevant data in plain text and when the form is submitted, the data is entered as Zope objects in the zope server. Did I overlook some features in Zope or are there readily available modules that accomplish this? Do I have to build it myself? Regards, Robert

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WAI Complient Code
by Kieran OSullivan 21 Dec '02

21 Dec '02

Is the HTML/DHTML that zope generates WAI complient? If not how mcuh work would it take to make it so? I've looked all over the web for this and there doesn't seem to be any info. BACKGROUND DO NOT NEED TO READ IF YOU DO NOT WANT The company I'm working for have a contract with a government agency so the code has to be WAI complient the contest so far is between SharePoint, Lotus Notes and Zope. Lotus Notes is hopeless at WAI Complience and SharePoint has no info on the subject.

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RE: [Zope] Accessing DOM nodes from python: how?
by Passin, Tom 21 Dec '02

21 Dec '02

[Catonano] > We have a folder with a bunch of html files in it. > > What I want to do is to make a drop down menu filled with some values. > > Each one of these values individuates one of the files in the folder. > > If I, as user, choose a code from the drop down menu, it > should take me > to the associated file (web page, that is). > > The files are not dinamically produced by Zope, they are simple > statical html files made by some collagues of mine with > DreamWeaver and > uploaded via ftp into my folder. > So the files are located in the file system and not in the Zope database. I would search the archives for the "localFS" product, and see how to get it to give you a list of the file names it controls. Then you can refer to them by title. > I could ask my collagues to include the code in every page > (file) in a > html-compliant shape, so Zope could acces that code and > CATALOGUE those > pages indexing that code, so I could try with a multiple choiche menu. > > Is it clearer? > Do you mean that each file is supposed to be tagged with some code, and that the file name is not adequate for listing in a menu? Seems like you have three types of things you can do to discover the code value: 1) Put the code into the filename and use string processing to extract it. This requires the the people producing the file name the file correctly. 2) Put the code into the html file itself. The best place for this would be a <meta> element. This requires you to extract the code value from the HTML file as you started out asking about. It also requires the people generating the file to insert the code value correctly. This approach is the most markup-language like approach. If you put it into a META element, you ought to be able to retrieve it using a regular expression. That would probably be the simplest thing to do. You would probably do that using a python external method. 3) Compute the right code value usng some algorithm. I have no idea if that would be possible for your files or not. If it is possible, you would not depend on the file creator to handle the code properly. Once you know what the code value is, you want to use it somehow. That is the subject of your next questions, I take it - > My idea is that I have 2 alternative ways: > > 1) add a field property to each file and fill it with the code, then > adding an index to my ZCatalog. Boring, error prone and time > consuming. > > 2) ask my collagues to inclue the codes in the html files and > get Zope > access and index that values. > Another approach would be to create a DTML method that returns a dictionary of code file identifiers keyed by the codes. You would use that dictionary when you build the menu. I have never done this programatically but it ought to be possible. Otherwise, you could write an external method to do the same thing by reading a file that contains the dictionary in text form (you create the dictionary by using eval()). When you receive a new file (or periodically using a scheduled task) you would look through the directory and build a new version of the dictionary. It ought to be easy. Cheers, Tom P

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Good books after 'The Zope Book' & 'Web App Dev + Content Mgmt'?
by Frederic Faure 21 Dec '02

21 Dec '02

Hi, I read both, and actually found the Zope Book a better introduction, especially the in-development online version. The Zope Bible seems pretty good, but would someone recommend "Zope Developer's Handbook", "Zope Web Application Construction Kit", and "The Book of Zope"? The last one doesn't seem very good, though. Thx Fred.

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Re: [Zope] Object propogation
by mackay_d＠bellsouth.net 21 Dec '02

21 Dec '02

> > From: Dieter Maurer <dieter(a)handshake.de> > Date: 2002/12/20 Fri PM 01:58:27 EST > To: mackay_d(a)bellsouth.net (David Mackay) > CC: zope(a)zope.org > Subject: Re: [Zope] Object propogation > > David Mackay writes: > > Do you have any suggestions as to how to preserve the list of mybrains > > objects so that I can access that, rather than re-executing the query? > You cannot preserve the sequence of "mybrain" objects, but you > can store their record ids and resolve the ids later into the objects > by means of a catalog method. > > For details, please read the "ZCatalog" section of > > <http://www.dieter.handshake.de/pyprojects/zope/book/chap3.html> > > It tells you the exact name of the record id and the name of the > catalog method. > > You are probably also interested in Pythons "list comprehension": > [x.record_id_ for x in catalog(...)] > > > Dieter Thanks, the way I was doing it was a bit inefficient. > PS: Please stay on the list. Sorry, I just hit reply without looking. Dave

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Calling DTML
by Kevin Carlson 21 Dec '02

21 Dec '02

Forwarding control from a Python script a DTML method in Zope 2.5.1 used to work like this: return _['updoc'](container, request) Now I am getting a Key error on 'updoc' which is a DTML method in the same skinned folder as the script. Any ideas? Kevin

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Tracebacks in 2.6.0
by Elena Schulz 21 Dec '02

21 Dec '02

Hi Kevin, I had the same problem and solved it like so: go to the module: Zope_2_6\lib\python\ZPublisher\HTTPResponse.py search for 'APPEND_TRACEBACKS = 0' and change it to '1' as the comment says. There is a way to improve it further. You can get even the relevant bit of the source-code in the concerned module by a nice extension written by Anatoly Artamonov and called trace_bk.py. I am very happy with this and it helps a lot of understanding the course of errors. now I have my old 2.5. error-messages plus a bit more ;-). You can even add <strong>Error error_tb: <dtml-var error_tb></strong><br> to your standart_error_message to get even more information. For that you have to change def _traceback in HTTPResponse.py like so: def _traceback(self, t, v, tb, as_html=1): #### Start 2 lines added for trace_bk from Shared.trace_bk import new_tb return new_tb(t,v,tb, self.debug_mode) #### End: 2 lines added for trace_bk tb = format_exception(t, v, tb, as_html=as_html) return '\n'.join(tb) -- hope you'll love it like me, Elena

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Interesting name space question
by Kevin Carlson 21 Dec '02

21 Dec '02

I am curious if the following is possible in dtml... I have a dtml-method named index_html. It calls a dtml-method named page_header. Is it possible for the code in page_header to obtain the title of the index_html method? For example: index_html: (Title set to "Home") <dtml-var page_header> page_header: <dtml-var Title of calling dtml method> I have been searching through the archives and such but since dtml-methods look up variables in the containing namespace, I'm not sure if this is a possibility. Any ideas?

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