June 2001 - Zope-Dev

Re: restructuredtext
by Michel Pelletier 21 Jun '01

21 Jun '01

I've cc:ed zope-dev in case anyone else is interested. On Thu, 21 Jun 2001, David Goodger wrote: > The last time I downloaded and studied the CVS branch was in November 2000. > At the time, the code wasn't very inviting. I just downloaded the CVS branch > again, using the instructions in > http://dev.zope.org/Members/jim/StructuredTextWiki/NGReleases, and visited > http://dev.zope.org//Members/jim/StructuredTextWiki. The RecentChanges page > and the StructuredTextNT/CurrentStatus page both list several additions > which don't seem to be reflected in STNG.txt or the StructuredText.py module > docstring. Is this code up to date? If not, I would appreciate a pointer to > the latest code, or a source .tgz by email. The version in Zope CVS (the HEAD, not any branches) is the most current code. The branch was dinscontinued when we folded it into the head, so try checking out a full head branch and look there, you will probably notice many changes. > If you do have information on creating a language front-end parser for > STXNG, please send it. And please add links to my projects to the > appropriate Wiki pages if you have time. (Karl: everytime I say DOM, I mean "DOM-like"). Basicly, Zope's current "classic" front-end is defined in StructuredText/ST.py. In there, you will see a function called StructuredText that turns indented, newline separated text into StructuredTextParagraph DOM objects, that get inserted DOM tree-style into a StructuredTextDocument DOM object. I would suggest you start looking there, ie, turn your code into a simple, homogeonous StructuredText paragraphs. For example:: >>> foo = """Title ... ... One ... ... Two *three* ... ... o four ... ... o **five** ... ... """ >>> Basic(foo) StructuredTextDocument([ StructuredTextParagraph(Title, [ StructuredTextParagraph( One, [ ]) StructuredTextParagraph( Two *three*, [ StructuredTextParagraph( o four, [ ]) StructuredTextParagraph( o **five**, [ ]) ]) ]), ]) >>> The resultant object is a StructuredTextDocument DOM object with StructuredTextParagraph DOM children. After the very first step, you can work with the content using the DOM interface:: >>> Basic(foo).getNodeName() 'StructuredTextDocument' >>> Notice how the first pass *didn't* go through looking for markup, *just* for structure. We did this for simplicity and because our structure could be factored out of our markup, I'm not sure if you can do that, but I suspect you can define more complex rules to define what a 'paragraph' element is. The next step is to "colorize" the simple, homogeonous DOM into a more complex "Document" DOM object:: >>> Document(Basic(foo)) StructuredTextDocument([ StructuredTextSection(StructuredTextSectionTitle(Title, [ ]), [ StructuredTextParagraph( One, [ ]) StructuredTextSection(StructuredTextSectionTitle([' Two ', StructuredTextEmphasis('three')], [ ]), [ StructuredTextBullet(four, [ ]) StructuredTextBullet(StructuredTextStrong('five'), [ ]) ]) ]), ]) >>> Now you have a DOM object that fully expresses your textual language. Obviously, you could turn this right back into STX. The Document() factory accepts a "simple" STX DOM tree created by the Basic() factory. This factory goes through, using the DOM API, looking for our special markup, and then colorizing that markup by adding new, more specialized DOM objects (like StructuredTextBullet and StructuredTextEmphasis). The final step is to feed the colorized DOM into an output generator. This is a factory that accepts a DOM object and returns a string of that object in a certain format. As an example, STXNG comes with HTML, MML (framemaker) and DocBook generators:: >>> HTML(Document(Basic(foo))) '<html>\n<head>\n<title>Title</title>\n</head>\n<body>\n<h0>Title</h0>\n<p> One</p>\n<h1> Two <em>three</em></h1>\n\n<ul>\n<li>four</li>\n<li><strong>five</strong></li>\n\n</ul>\n</body>\n</html>\n' >>> So what you would do is to create your own "frontend" that can turn your reStructuredText into a simple DOM consisting solely of 'paragraphs', whatever that means to you. In the case of STX, indentation and newlines define paragraph structure. In reSTX, you may have different ways of marking up document structure. I suspect your parsing rules will be more complex, and that you've probably already written that piece. DocumentClass.py contain a class for each type of markup STX defines. All of these classes subclass the StructuredTextParagraph DOM object. These DOM objects will get created when the DocumentClass.DocumentClass class encounters your markup as it parses your Basic DOM. The DocumentClass.DocumentClass class has doc_* methods that get called on every paragraph node in your Basic DOM. Each method has an associated regular expression that is used to match occorances of your markup. Some of them, like doc_table, are very complex, but others like doc_emphasize are pretty simple. You would write one subclass of StructuredTextParagraph and one of these methods for each kind of your markup. So you can subclass DocumentClass to specialize and extend it to recognize the markup in your simple DOM (and reuse any coincidental features with StructuredText). The Document class is very simple, but you will need some understanding of regular expressions to customize it. I suspect that using STXNG, just for its DOM, will save you many, many hours of time that you would need to re-create something as flexible (the DOM is, after all, a very rich API). Since STXNG comes in three distinct peices, you can thrown away the first piece and replace it with your own, specialize the second piece, and totally re-use the third. Hope that helps, -Michel

1 0

RE: [Zope-dev] ZPL and GPL licensing issues
by Toby Dickenson 21 Jun '01

21 Jun '01

> > >and the 'obnoxious advertising clause' > > >seemingly puts a stop to it.. > > > > I understand that 'obnoxious advertising clause' is the > phrase used by > > the FSF to describe this type of license clause, however I wonder > > whether you (personally, or as an organisation) really find it to be > > 'obnoxious'? > > > > Personally, I am *happy* to respect clause 4. > > Please, don't try to critize the FSF just for the fun of it. I did not intend any fun, nor criticism. > Have you read the FSF's comment about the original 'obnoxious > advertising > clause' ? The problem is a practical one, and a real one: The old BSD > license said that, if you incorporated their code in your > product, every > advertisement for your product had to carry this line: > > This product includes software developed by the University of > California, Berkeley and its contributors. Yes, but thats *not* what the ZPL clause 4 says. ZPL says you only need to include the acknowledgement in an advertisement "mentioning features derived from or use of this software". As I read this you need not include the acknowlegement if your advertisement: a. does not mention features derived from Zope b. does not mention that it uses Zope

2 1

RE: [Zope-dev] Add a user to zope
by Marco Nova 21 Jun '01

21 Jun '01

this is the piece of external method I use to import a user into a CMF portal. [...snip...] import Zope def add_zope_user( username, passwpord, email, fullname ): applic = Zope.app() roles = ['Member'] domains = '' properties = {'username':username,'email':email,'fullname':fullname,'listed':1} pr = applic.board.portal_registration pr.addMember( username, password, roles, domains, properties) return [...snip...] regards, - mn > -----Original Message----- > From: Dyon Balding [mailto:dyon@hiringtools.com] > Sent: Wednesday, June 20, 2001 7:18 PM > To: Johan Beauce > Cc: 'zope-dev(a)zope.org' > Subject: Re: [Zope-dev] Add a user to zope > > > Hi Johan, > > It would probably be more efficient for you to look at alternative > user folders that retrieve user data directly from your SQL table. > > I'm not sure the current state of the art product is for that, but > UserDb used to be the one, and we have that integrated successfully > in our site. > > Check the Products area on zope.org, and I'm sure you'll find > something. > > -d > > Johan Beauce wrote: > > > > Hello, > > > > I need your help. I'm trying to add all users from of our > company in zope. > > I don't want enter all users and all passwords. > > I would like make a dtml-method which select all users and passwords > > in my (SQL) table and create automatically these users. > > I have created this dtml-method but I don't succed to > redirect the page > > to "acl_users/manage_users" (method that create users) > > so that I don't need to press add button for each users. > > > > Do you Have a answer or another best solution ? > > > > Thanks ... > > > > Johan. > > > > <form action="acl_users/manage_users" method="post"> > > <table> > > > > <input type="text" name="name" value="totoTest"> > > <input type="password" name="password" value="test"> > > <input type="password" name="confirm" value="test"> > > <input type="text" name="domains:tokens" value=""> > > <select name="roles:list" size="5" multiple> > > <option value="Manager">Manager > > <option value="Member">Member > > <option selected value="Owner">Owner > > <option value="Reviewer">Reviewer > > <option value="publisher">publisher > > </select> > > <input type="submit" name="submit" value="Add"> > > > > </table> > > </form> > > > > ... or ... > > > > <dtml-call > > "self.Users.acl_users._addUser('testToto','toto','toto','Owner',0)"> > > > > _______________________________________________ > > Zope-Dev maillist - Zope-Dev(a)zope.org > > http://lists.zope.org/mailman/listinfo/zope-dev > > ** No cross posts or HTML encoding! ** > > (Related lists - > > http://lists.zope.org/mailman/listinfo/zope-announce > > http://lists.zope.org/mailman/listinfo/zope ) > > -- > | Dyon Balding . Software Engineer . HiringTools.Monster.com > | dyon(a)hiringtools.com . +1 415 288 3375 > > _______________________________________________ > Zope-Dev maillist - Zope-Dev(a)zope.org > http://lists.zope.org/mailman/listinfo/zope-dev > ** No cross posts or HTML encoding! ** > (Related lists - > http://lists.zope.org/mailman/listinfo/zope-announce > http://lists.zope.org/mailman/listinfo/zope ) >

1 0

RE: [Zope-dev] Fishbowl not problem centered enough
by Jay, Dylan 21 Jun '01

21 Jun '01

> -----Original Message----- > From: Casey Duncan [mailto:cduncan@kaivo.com] > Sent: Thursday, 21 June 2001 3:30 AM > To: Ken Manheimer > Cc: zope-dev(a)zope.org; Jay, Dylan; Paul Everitt; Jim Fulton > Subject: Re: [Zope-dev] Fishbowl not problem centered enough > > > I agree that the fishbowl is beneficial, if for nothing else than a > sounding board for the possible directions of Zope. But, like I > mentioned before, I think the community needs more > involvement directly > with the development of its own tools like the fishbowl. I > realize there > is a risk to DC of loosing some level of direct control, but I suggest > that a democratic development approach although less decisive and > centralized is superior to a despotism. I'm not so sure about this idea. Benevolent dictators are always going to be 10 times more efficient than democracy. I just think we need to improve the consultitive process and have some focus on what is really trying to be achieved. I aggree that the changes to Zope have been way to slow but then again Zope is going in 5 directions at once which is not a good idea esp if none of those ways work togeather. Perhaps more transparency of the DC's strategies for where zope is going would be good. Also transparency of the criteria by which we should be evaluating new proposals.

1 0

Zope BackTalk Working Session Invite
by Chris McDonough 20 Jun '01

20 Jun '01

(details also available via http://www.mindview.net/Seminars/BackTalkWorkingSession/) INTRODUCTION If you're a seasoned Zope, Python, or collaborative technology developer, you're invited to Crested Butte, Colorado between July 7 (Sat) - 10th (Tues) to help in a "working session" which has as a goal developing a 1.0 version of a "BackTalk" implementation for Zope. The working session is primarily a time for quickly iterating against an existing implementation, adding features and hardening as we go. If you come, you'll have an opportunity to meet other Zope and Python developers and have some fun hacking around on a neat project. This is *not* a seminar or teaching exercise, and thus is unstructured. We'll likely use some of the concepts from Extreme Programming (pairing, short iterations, etc), to keep us busy during the working session. Ideally, participants will have built Zope Products in the past. COST Free WHO WILL BE ATTENDING - Bruce Eckel (President, MindView, and author of Thinking In (Java|C++) and other books) - Chris McDonough (developer, Digital Creations) - You! WHAT IS BACKTALK "BackTalk" is an annotation and collaboration system devised by Bruce Eckel and Bill Venners. It is described at http://www.mindview.net/Books/BackTalk and http://www.mindview.net/Private/BackTalk . It is first and foremost a system which allows for inline commenting on prestructured content. It is close in sprit to systems such as Crit (http://www.crit.org) and Andamooka (http://www.andamooka.org) ** note: although the MindView documentation talks about BackTalk as nonfree software, it is describing the Java implementation. The Zope software produced as a result of the working session will be free ** BackTalk has two major design goals: - dramatically lower the bar for readers to provide inline comments on booklike content. - provide mechanisms for original document authors to fold contributions in the way of comments into the mainline document. IMPLEMENTATION GOALS Produce a Zope implementation of BackTalk which makes use of Zope-only features such as Structured Text (http://cmf.zope.org/doc/user/UsingStructuredText.txt/view) and the Zope object database [ZODB] (http://www.zope.org/Documentation/Articles/ZODB1) A prototype Zope implementation is (hopefully) accessible at http://serenade.4-am.com/BackTalkSandbox/ . If you have difficulty accessing the prototype, please let me know via email (it's a development box). IMPLEMENTATION HIT LIST (we might need you if you know anything about...) - BackTalk "back/forward" navigation system (DTML/Python) - BackTalk document end-of-document index generation (Python) - Table of contents generation (DTML/Python) - RTF-to-StructuredText converter (Python/C/whatever) - BackTalk-to-RTF converter (Python) - BackTalk-to-PDF converter (Python) - Javascript form elements (JavaScript) WHEN DOES THE SESSION START/END From: Saturday, July 7, 2001 To: Tuesday, July 10, 2001 session days begin at 9, end at 5. WHERE IS THE SESSION Crested Butte, Colorado (exact location in town to be announced) Directions and location details are available from http://www.mindview.net/Seminars/Locations/CrestedButte/CrestedButte.html HOW DO I SIGN UP Sign up via the registration system at http://www.mindview.net/Seminars/BackTalkWorkingSession. We have as a limit about 15 people. Hopefully, I'll see you there! - C

1 0

Re: [zope-dev] Using db_connections from Zope products
by William Noon 20 Jun '01

20 Jun '01

In both products and External methods I do something like the following: def get_product(self, trans_id) : database = getattr(self, 'product_DA') # product_DA is the database res = database().query( # adaptor "select * from product_log where trans_id = '%s';"%(trans_id)) fields = res[0] results = res[1] This allows the database adaptor to pool connections and be setup from the zope management screens. --Bill Noon

1 0

ANNOUNCE: Zope 2.3.3 released
by Brian Lloyd 20 Jun '01

20 Jun '01

Hello all, Zope 2.3.3 has been released - you can download it from Zope.org: http://www.zope.org/Products/Zope/2.3.3/ Zope 2.3.3 is a relatively minor bug-fix release. It contains fixes for a few issues since 2.3.2 and includes the fixes included in all hotfix releases to date. The main goal of the 2.3.3 release is to make sure that the latest "stable" release distribution is up to date regarding hotfixes. For more information on what is new in this release, see the CHANGES.txt and HISTORY.txt files for the release: http://www.zope.org/Products/Zope/2.3.3/CHANGES.txt http://www.zope.org/Products/Zope/2.3.3/HISTORY.txt For more information on the available Zope releases, guidance for selecting the right distribution and installation instructions, please see: http://www.zope.org/Documentation/Misc/InstallingZope.html Brian Lloyd brian(a)digicool.com Software Engineer 540.371.6909 Digital Creations http://www.digicool.com

1 0

Access to extra modules in Python Scripts
by Dyon Balding 20 Jun '01

20 Jun '01

I wanted to make the re module accessible to Python Scripts on my site. The instructions in the README.txt in the product directory specify that you should place: from Products.PythonScripts.Utility import allow_module allow_module('re') in a product __init__.py. This appears to work fine for basic re functions, however I wish to use the returned re.MatchObject objects, and these raise an Unauthorized exception when methods are called. Reverting to the old __allow_access_to_unprotected_subobjects__ on re, re.MatchObjects and re.RegexObjects appears to work however. How is one supposed to expose that functionality to Python Scripts using the new security features? In the Utility.py is an allow_class method as well, but I couldn't work out if that was what I needed. thanks -d -- | Dyon Balding . Software Engineer . HiringTools.Monster.com | dyon(a)hiringtools.com . +1 415 288 3375

1 0

Re: [Zope-dev] Fishbowl not problem centered enough
by Ken Manheimer 20 Jun '01

20 Jun '01

On Wed, 20 Jun 2001 09:24:40 -0600, Casey Duncan <cduncan(a)kaivo.com> wrote: > "Jay, Dylan" wrote: > > > > Fishbowl is a great idea but it seems to be that its solution focused rather > > than problem focus. Perhaps if you had a page that listed all the problems > > with zope or problems that need to be solved that isn't as easy as it could > > be with zope. I think it would be helpful to have a "big picture", with goals and objectives, into which to fit the pieces - would that address the kinds of things you're talking about? > The fishbowl is also "pull" technology, and so it is time-consuming to > keep up with the developments. I personally find it to be cumbersome, > limiting and not really conducive to actually getting stuff done. I've really wanted to enable people to subscribe to notification about changes to wiki pages, and to notifications about additions to the wiki. Unfortunately, i didn't have time to get to that in the WikiForNow project. As soon as i'm clear form a current project i *may* be able to concentrate on at least formulating a reasonable quick-and-dirty way to do notifications, and getting it done for the short term. Whether or not it's me doing it, i think we're going to be bringing more attention to these issues. > I know there has been talk of opening up the Zope CVS to outside > contributions, I personally think this is long overdue. In order for a > community development forum to really work, this would have to happen. This actually is high in our priorities, but the key players have been swamped. From a discussion w/paul recently i think we'll be getting some more attention to doing this, very soon. > > I just see lots of solutions many of which attack some of the same problems > > and no clear way to get those people comunicating and making informed > > trade-offs I think the fishbowl, as it is, is a good significant move towards exposing the process and enabling involvement. Mailling lists help conduct the collaboration. However, more is needed to facilitate that process - selectively enabling checkins, doing notifications to make tracking of developments manageable, fleshing out the context (problems/big picture). It's an incremental process, and we may have lapsed too long in progressing on those increments - perhaps we need to chart out some of these critical pieces, so we can better formulate how they're being attacked - and maybe enable more help with the increments. I hope to have expore this some, internally, and have more to say about it next week. Ken Manheimer klm(a)digicool.com

3 2

Add a user to zope
by Johan Beauce 20 Jun '01

20 Jun '01

Hello, I need your help. I'm trying to add all users from of our company in zope. I don't want enter all users and all passwords. I would like make a dtml-method which select all users and passwords in my (SQL) table and create automatically these users. I have created this dtml-method but I don't succed to redirect the page to "acl_users/manage_users" (method that create users) so that I don't need to press add button for each users. Do you Have a answer or another best solution ? Thanks ... Johan. <form action="acl_users/manage_users" method="post"> <table> <input type="text" name="name" value="totoTest"> <input type="password" name="password" value="test"> <input type="password" name="confirm" value="test"> <input type="text" name="domains:tokens" value=""> <select name="roles:list" size="5" multiple> <option value="Manager">Manager <option value="Member">Member <option selected value="Owner">Owner <option value="Reviewer">Reviewer <option value="publisher">publisher </select> <input type="submit" name="submit" value="Add"> </table> </form> ... or ... <dtml-call "self.Users.acl_users._addUser('testToto','toto','toto','Owner',0)">

3 2