July 2000 - Zope - Zope lists

RE: [Zope] (no subject)
by Chris McDonough 13 Jul '00

13 Jul '00

> Thanks for responding so quickly. > > I'm not sure I understand. The problem here, and the reason I > can't simply > use a form or a session, is that I want to set a series of > links that send > different options to the same method. I guess it's the > equivalent of passing > args to a dtml method (which you can't do). > It's the method I always used doing Perl. Adding stuff on to > the URL is like > the ghetto-style web-based ARGV. Well.. unfortunately, this isn't straight CGI nor Perl, and the URI namespace never "ends" in Zope. The way to pass args to DTML methods is via a form post or via a link with a query string (or a form get). The publisher "eats up" the rest of the URL and returns a Not Found error if you try to tack on indiscriminate things after a method name. Sorry. Your option is to write a custom object that handles this via __bobo_traverse__. I'm still not sure why you can't just do: <a href="my/method?a=1">1</a> as opposed to: <a href="my/method/1">1</a> > > I don't really get what __bobo_traverse__ is or how it would help. The > problem isn't with grabbing stuff on the other end. If I can > just get stuff > to PATH_INFO, I can read PATH_INFO on the other side. The > problem is that I > don't know how to variably write PATH_INFO for different > links. I know how > to do it really easily in Perl. I would search the mail archives for __bobo_traverse__ if you want to know more. I'm not even sure if Zope exposes PATH_INFO in REQUEST. It might. I doubt it would help if it did, however.

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For Newbies Only!
by Tim Cook 13 Jul '00

13 Jul '00

Ok folks if you are like me and not only can't see the light but can't even find the path to the light try these things: 1. Do the Python tutorial. 2. Read every message from the list archives for the past two months. 3. Even if you don't want to develop on a beta platform. Install 2.2b4 on another machine and go through the tutorial. Then read the API docs. Took me more or less two days. Time VERY well spent. Now go back to your application and yea shall see the path that will lead you from darkness. Just my two-cents on how I found the path... -- Tim -- Opportunity is missed by most people because it is dressed in overalls and looks like work. Thomas Edison

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Re: [Zope] Customising the calling of the _add method for a product
by icottee＠bluefountain.com 13 Jul '00

13 Jul '00

Due to lack of response (wise people) I removed everything and started again. Of course the way that I previously thought it should work but didn't now works fine. Just used <dtml-var TimeSheet_Add> and all was fine. Hey ho --- Original Message I have a TimeSheet product which is currently utilising the suggestions from one of the howtos on zope.org, to make the handling of errors a little smarter. Subsequently my addForm code checks to see if any errors were detected and, if not, tries to go to the usual _add method. But this fails. The code below shows what I currently have. If I can just call this _add method I am finished. <dtml-if "I_Error==1"> <dtml-var TimeSheet_addForm_include> <dtml-else> <dtml-call "TimeSheet_add(_,_.None)"> </dtml-if> As always, any help greatfully received Ian

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RE: [Zope] (no subject)
by Chris McDonough 13 Jul '00

13 Jul '00

This is a job for __bobo_traverse__ (yes, I know, unlikely name, but what has now become Zope used to be named Bobo). Without using __bobo_traverse__, which is defined as a method on the object which you access via traversal, you can't easily use "extra" URL elements as parameters to pass to the object. An sample __bobo_traverse__ method: def __bobo_traverse__(self, REQUEST, name): """ 'name' here is the remainder of the URL """ return self._data[name] It might be easier in your case if you're not used to python to construct your own Zope objects in which you can place a __bobo_traverse__ method to just use query string arguments instead, which are available through the REQUEST object. > -----Original Message----- > From: Leichtman, David J [mailto:code@ou.edu] > Sent: Thursday, July 13, 2000 2:27 PM > To: 'zope(a)zope.org' > Subject: [Zope] (no subject) > > > I've previously been a Perl programmer. I did a lot of stuff > where I would > have multiple links with different options. > Ex. > > <a href="/path/script.pl/1234">1234</a><br> > <a href="/path/script.pl/2345">2345</a><br> > > Then, in script.pl, I would pick up the extra info on the > other side from > $PATH_INFO. > > The problem in Zope is that there is no "end" to the address. > Serving from > Apache, it knows that the .pl extension is the end of the > path. If there's a > '/' and more after it, it will push it to PATH_INFO. So how > do you do this > in Zope? Because it's object names instead of paths in the > request, how do > you send optional, additional info through the request as above? > > I know there has to be a way to easily do this, I just can't > figure it out. > > > _______________________________________________ > 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 ) >

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Workaround for objectValues security problem?
by Andres Corrada-Emmanuel 13 Jul '00

13 Jul '00

Hi, I'm trying to create a navigation bar DTML Method that goes something like this: <dtml-let root="PARENTS[-1]"> <dtml-in "root.objectValues('Folder')"> . . . The problem, as reported in a posting from Jerome Alet last week, is that the Anonymous user does not have permission to access the objectValues method. Giving the navigation bar DTML Method the proxy role of manager does not work correctly: the method can be called directly but not within other documents or methods. Does someone have a workaround for this problem? Thank you.

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BTreeFolder
by Robert Wohlfahrt 13 Jul '00

13 Jul '00

Hi, I want to try out the BTreeFolder product. I unpacked it an restarted Zope, but int the Products-management screen it shows up as a broken product. I use Zope-2.1.4 ... Below is the Traceback it gives me on a click: ----------------------------- BTreeFolder Import Traceback Traceback (innermost last): File "/usr/local/Zope-2.1.4-src/lib/python/OFS/Application.py", line 387, in import_products product=__import__(pname, global_dict, global_dict, silly) File "/usr/local/Zope/lib/python/Products/BTreeFolder/__init__.py", line 89, in ? import BTreeFolder File "/usr/local/Zope/lib/python/Products/BTreeFolder/BTreeFolder.py", line 89, in ? from AccessControl import getSecurityManager ImportError: cannot import name getSecurityManager ----------------------------- any ideas? Robert -- Robert Wohlfahrt (robert.wohlfahrt(a)sachsen-net.com) Tel: 0179 / 2980074 Fax: 0351 / 2880145

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namespace??
by Marcus Mendes 13 Jul '00

13 Jul '00

How can I get the content of TITULO_CIDADE out of my tags <dtml-in> </dtml-in> ?? My code is : <dtml-in "_['sequence-item'].objectValues(['TSimpleItem'])" sort=title> <dtml-if "_['sequence-item'].id == CIDADE"> <dtml-call "REQUEST.set('TITULO_CIDADE',_['sequence-item'].title)"> </dtml-if> </dtml-in> Thanks. Marcus Mendes

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Zope 2.2.0b4: Congrats on a job well done + Tips for upgrading
by T.J. Mannos 13 Jul '00

13 Jul '00

Hi, there, I'd just like to announce that I've installed Zope 2.2.0b4 via CVS and done a complete run-through of my site. It seems to work flawlessly now, and I've gone ahead and installed it on my main port for a trial period. I hope to launch the site using the final version of 2.2.0 (so hurry up, developers!!) :) Anyway, upgrading wasn't without its problems, so let me share with you some tips that will help those in my situation upgrade more successfully. Note that I've skipped some steps, with the assumption that since your upgrading an existing Zope version, you already know how to install Zope. Directories cited: Original installation: /usr/Zope-2.1.6 Fresh install of 2.1.6 (for diff'ing changes I made in the python modules): /temp/Zope-2.1.6 New CVS install of Zope-2.2.0b4: /usr/local/Zope2 (I moved it to the /usr/local volume because I had more space there). Products installed: SQLSession SiteAccess TinyTable ZMySQLDA (your product list may vary) FIRST, I like to hack the source a lot. I have my own special comment tags, such as  instead of <dtml-comment> ... </dtml-comment>, and I have my own special <dtml-var> modifier, js_friendly, which quotes all special characters so I can use them in JavaScript code. On a tip from Shane, I started using CVS to download the Zope source code so that it would merge the changes made in each upgrades with the changes I've made to the source. (Do a search for "CVS" on Zope.org) However, this was my first CVS, so I still needed to bring over the changes I'd previously made. So....... cd /usr/local/Zope2 diff -rc /temp/Zope-2.1.6/lib/python /usr/Zope-2.1.6/lib/python >MyChanges.diff patch -p3 <MyChanges.diff NOTE: Results may vary. By the way, incase you don't want to mess around with CVS (or you're like me and can't figure out how it works), the above commands should achieve the same effect, although you might get a few failed hunks and have to fix them manually. If you don't modify the Zope source, you can skip this step. SECOND, I had all my data, external methods, and installed products on my old installation. I didn't want to lose them. Now, don't be tempted to just copy all your Products over from the lib/python/Products folder. Some of them, such as SiteAccess and SQLSession, if you have them, WON'T WORK. (Furthermore, they'll break your installation, and you won't even be able to get to a management screen). Here's what you do: 1. Back up your new var directory (incase something goes terribly wrong) and copy the old data over. cd /usr/local/Zope2 mv var var.bak cp -R /usr/Zope-2.1.6/var . 2. Copy your external methods over. cp -R /usr/Zope-2.1.6/Extensions 3. Copy *some* (not all) of your Products over. cd lib/python/Products cp -R /usr/Zope-2.1.6/lib/python/Products/TinyTable . cp -R /usr/Zope-2.1.6/lib/python/Products/ZMySQLDA . 4. Start Zope (you may have to modify the startup script and the superuser password) and load the management interface. Delete all your SiteRoots and SQLSessions. You'll have to re-create them. 5. If you're like me, you created all your 2.1.6 objects using the superuser account. You can't do that in 2.2.0. So, go to your acl_users folder and create a new account having Manager and Owner privileges. 6. Download and install new versions of SQLSession, SiteAccess, and possibly ZMySQLDA, if you have it. (Be warned, though, you may have to re-create all of your database connections and SQL methods!) 7. Re-start Zope and log in as the new account you just created. Take ownership of your root directory. (Click "Ownership" tab, then "Take Ownership"). 8. Re-create your SQLSessions and SiteRoots. Check your database folder to make sure your SQL sessions are all intact. (If not, you have no sympathy from me. I had to re-create all 40 of mine when I tried beta 2). 9. Check for bugs -- I'm sure you'll find plenty! If you're getting a lot of Unauthorized errors using external methods, check all your external methods and make sure each class has the property "__allow_access_to_unprotected_subobjects__" set equal to "1". For instance, I had a bunch of simple objects created this way: class simpleClass: pass Under 2.2, I had to do it this way: class simpleClass: __allow_access_to_unprotected_subobjects__=1 pass THIRD, I'm waiting for the next release of Zope so that I can test out this CVS feature. I'm excited! Upgrading is such a pain, and I'm hoping CVS can help to automate that somewhat. I'll let you know how it goes. One very wise thing to do before every CVS checkout, though, is a complete backup of the Zope directory! After four failed upgrades (including the alpha), I don't want to take my chances. Thanks, Zope developers, for an excellent product! - T.J. Mannos - Salt Lake Community College

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namespace???
by Marcus Mendes 13 Jul '00

13 Jul '00

Hello, How can I put the content of TITULO_CIDADE out of my tags <dtml-in> </dtml-in> ?? My code is : <dtml-in "_['sequence-item'].objectValues(['TSimpleItem'])" sort=title> <dtml-if "_['sequence-item'].id == CIDADE"> <dtml-call "REQUEST.set('TITULO_CIDADE', _['sequence-item'].title)"> </dtml-if> </dtml-in> Thanks. Marcus Mendes

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503 Zope temporarily overloaded
by J. Michael Mc Kay 13 Jul '00

13 Jul '00

I was looking at stats today and saw this 503: Temporarily overloaded Can anyone guess at what this might mean? Thanks

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