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Re: [Zope-dev] Gadfly and Zope 2.2.4
by Dieter Maurer 12 Dec '00

12 Dec '00

Josh Zeidner writes: > I tried to add a Gadfly Database connection to my Zope installation > without changing any of the parameters and got an error message saying: "The > parameter, connection, was omitted from the request." . What, if anything, > am I doing wrong? You did not "Select a data source". You must click at one of the entries in this selection box. Dieter

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LocalFS question
by Leichtman, David J 12 Dec '00

12 Dec '00

How do you access an individual object in a LocalFS? By that, I mean: If I wanted the last_mod time of any Zope object, I could say <dtml-var "object.subobject.bobobase_modification_time">. However, if you try to do the same thing with a LocalFS object, i.e. <dtml-var "localfs_object.localfs_subobject.bobobase_modification_time">, you get the error NameError: localfs_subobject This leads me to believe that LocalFS subobjects are not really objects. But then how does the Zope management interface deal with them, and how can I?

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Does Zope 2.3 Alpha run on Python 2.0?
by jimbo 12 Dec '00

12 Dec '00

>> Just a thought. About a month ago this would have sounded far >> fetched, but now that Guido is in the house, when might we expect >> the Zope Python version to change from 1.5.2 to 2.x? Imho for >> the book the Python version for Zope should at least be 2.xa1> >> It seems to me that by the time the book is finalized your team >> could deliver a basic core Zope 2.x Python 2.x release. My >> understanding is that its not that big of an issue. I'm sure it >> would just make the marketing team giddy. >It's probably a little more an issue than you think. Zope is a I would like to get a clarifaction on this. It seems best to provide support for Python 2.x and provide a patch for 1.5.2 if need be. >pretty large codebase and if nothing else, introducing unicode Seem to me a 2.3 designation gives you some leeway to provide 2 versions release perhaps 2 versions of Zope 2.3. One that incorporates work already done by members in the community. See links below for Python 2.x support and Zope 2.2.4. http://www.zope.org/Members/stevea/unicode_for_224.patch.gz http://www.zope.org/Members/htrd/wstring Don't be like a certain company that stopped dos at 6.0. Or did they? The point is probably at some point in the future Zope will become the Windows of Python. Leaving us with Windows3000, Linux3000, and Python3000(W/Zope interface:-) Go Guido, Go Guido, it's your birthday! Long live the command line interface! >can affect a great many things. Its the sort of thing that needs >to be done with a lot of thinking up front. Some work is being >done on that, (esp. by Toby Dickenson) but 2.3 won't be the >release where Python 2.0 is officially supported / required. >Brian Lloyd brian(a)digicool.com >Software Engineer 540.371.6909 >Digital Creations http://www.digicool.com http://lists.zope.org/pipermail/zope/2000-December/036990.html

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Re: boolean help
by Robin.Lamb＠stanfordalumni.org 12 Dec '00

12 Dec '00

On Sun, 10 December 2000, Martijn Pieters wrote: > > > I am new at programming and have been unable to code a boolean button > > into my Zope Portal registgration form that can recall the previous > > selection such that it can be de-selected. Basically, I want to enable > > a user on my site to sign-up, flip a boolean on, log out, then later log > > back in and unflip that boolean. It's the "unflip" that catches me. I > > have been able to make the boolean reflect the fact that it is selected > > when the user logs back on, back I can't make it unselectable. Here's > > the code I've got now that doesn't allow for de-selecting, > > > > <input type="checkbox" name="current_college_student" > > <dtml-if" member.current_college_student"> > > checked > > </dtml-if> > > value="member.current_college_student"> > > <b>Current College Student</b> > > > > I guess I need to tell the database that if no value is entered, it > > should delete "member.current_college_student" from its records. > > I am not sure what your problem is here. > > Are you talking about the fact that if the checkbox isn't checked, that > the browser doesn't send *any* information about the field > 'current_college_student'? > > If so, you can check for it's absense with the DTML construct '<dtml-unless > current_college_student> .. </dtml-unless>. Or you could add a hidden form > field *before* the checkbox which defines a default, empty value, like so: > > <input type="hidden" name="current_college_student:default" value=""> > > You can of course put any other value in there. The browser will always > pass this back to Zope, and then you can test for the value of > current_college_student. > > Hope this helps!! That doesn't quite do it. Someone joins the network and is taken to a mandatory form where they fill in eight pages of information about themself. They submit the information. Everything's cool up to this point. A year later, they graduate from school and become a farmer. They still want to be a member of the network. They log back in, re-access their form information, deselect the checkbox for "student" and select the "professional" checkbox. I can't get my zportal ZODB to recognize the deselection. You'll notice in the code above that when the box is checked and submitted, the value "member._____" is submitted to the database. To display a checked box when the page is re-loaded, I use <dtml-if "member.______">checked</dtml-if> within the <inpupt type=boolean...> tag. Now, I want to tell the database that if a form page is re-submitted and a boolean box that was checked is no longer checked, it's previous value should be deleted from that user's record. Can anybody shed any light on the matter? Robin Lamb 811 Oak St. San Francisco, CA 94117 -USA- phone: 415.241.0441 ---------------------------------------------- E-mail(a)stanfordalumni.org is brought to you by the Stanford Alumni Association and Critical Path.

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Does Zope 2.3 Alpha run on Python 2.0?
by Brad Clements 12 Dec '00

12 Dec '00

I need to refresh my port to NetWare, and want to knock off both Python 2.0 and Zope 2.3 in one go. Anyone know if it works on 2.0? Brad Clements, bkc(a)murkworks.com (315)268-1000 http://www.murkworks.com (315)268-9812 Fax netmeeting: ils://ils.murkworks.com AOL-IM: BKClements

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How about a Zope 2.3a1, ZBook 2.3a1, and Python 2.3a1
by jimbo 12 Dec '00

12 Dec '00

Just a thought. About a month ago this would have sounded far fetched, but now that Guido is in the house, when might we expect the Zope Python version to change from 1.5.2 to 2.x? Imho for the book the Python version for Zope should at least be 2.xa1 It seems to me that by the time the book is finalized your team could deliver a basic core Zope 2.x Python 2.x release. My understanding is that its not that big of an issue. I'm sure it would just make the marketing team giddy. -Jimbo

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PIL problem
by Luc Tonin 12 Dec '00

12 Dec '00

well i m still trying to insert some text in a gif image using PIL but what should i do??? using da PSDraw class?? does anybody have an id ?? thx by advance Luc TONIN ------------------------------ Développeur Web ------------------------------ Multithématiques http://www.multithematiques.com Chaines thématiques sur câble et satellite Canal Jimmy, Cinecinemas, Cineclassics, Planete, Forum, Season, Wishline, Centre Jean Monet 03 82 24 00 42 Longlaville +333 82 24 00 42 54400 Longwy

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Re: [Zope] Incrementing a form field
by administrator＠consotec.de 12 Dec '00

12 Dec '00

If you are working with MySQL or some other database system, then your database should deliver a valid id. For a description have a look in the HowToDos and search for: Creating a new record with subrecords in MySQL Best regards Arno > Hi! > > I have a form that is used to insert some records to a database, and one > of the fields is a sequence number. I want to increment this number when > the form is used, unless is the first time it is loaded. > > The form (idea copied from the SmartForms HOWTO) have the name > "Register", and is something like this: > > <dtml-var standard_html_header> > > <dtml-if "REQUEST.REQUEST_METHOD=='POST'"> > Record inserted. > </dtml-if> > > <dtml-if my_number> > <dtml-call "REQUEST.set('my_number', my_number + 1)"> > <dtml-else> > <dtml-call "REQUEST.set('my_number', 1)"> > </dtml-if> > > <form action="Register" method="POST"> > A Field <input name="my_field" value="some value"><br> > A Number <input name="my_number" value="<dtml-var my_number>"><br> > <input type="submit" value="OK"> > </form> > > <dtml-var standard_html_footer> > > It work for the first load, but when I press the OK button, I get an > error message:

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Re: [Zope] LoginManager broken?
by dan＠sol.control.com 12 Dec '00

12 Dec '00

"Phil Harris" <phil.harris(a)zope.co.uk> writes: > Phil, > > Something that bit me when using the howto you referenced. > > When creating the methods, as soon as the authenticate method is created the > LoginManager starts using it, but since the other methods don't yet exist it > starts generating errors with the result that you are locked out of the > LoginManager and any folders secured by it. Yeah, that bit me too. I think that the alternate approach in my writeup below avoids it by not telling the UserSource anything until everything else is set up. The main problem with it is that it doesn't currently take advantage of the cacheing features in BasicUserSource. I think that I need a trivial Python subclass of LoginUser that supports cache management, but I need to understand the lifetimes of virtual ZClasses in Racks a bit better first... > My solution was to create all the methods needed but with bogus names, such > as by sticking an x as the first character of each. > > This way you can test each in isolation and when satisfied that they are > correct, rename them all in one fell swoop. Cute. I'll remember this trick. > Ipso facto, presto magico you have a working LoginManager. > > I've tried this procedure on 2.2.x with various versions of > LoginManager/ZPatterns and it's worked every time. The latest Zope I've > used it with is 2.2.4. > > hth > > Phil > phil.harris(a)zope.co.uk > > > ----- Original Message ----- > From: "Mayers, Philip J" <p.mayers(a)ic.ac.uk> > To: <zope(a)zope.org> > Sent: Monday, December 11, 2000 8:34 PM > Subject: RE: [Zope] LoginManager broken? > > > > Thanks, I'll take a look. > > > > Re: LoginManager - After a fast turnaround (confirming my ample faith in > > Open Source software) Magnus Heino pointed me in the right direction - the > > dtml methods and SQL objects need to be inside the UserSource folder, > *not* > > the LoginManager folder as the Howto implies (or maybe I just can't > > read...). Can someone confirm that the SQL methods need to be inside the > > UserSource folder? (which is mildly annoying, but there we go...) > > > > I'm still having some problems getting multiple roles working, but it's > > behaving itself for now. Now all I have to do is solve my LIMIT problem... > > > > Regards, > > Phil > > > > +----------------------------------+ > > | Phil Mayers, Network Support | > > | Centre for Computing Services | > > | Imperial College | > > +----------------------------------+ > > > > -----Original Message----- > > From: dan(a)sol.control.com [mailto:dan@sol.control.com] > > Sent: 11 December 2000 20:18 > > To: Mayers, Philip J > > Cc: 'zope(a)zope.org' > > Subject: Re: [Zope] LoginManager broken? > > > > > > You might look at http://www.zope.org/Members/dlpierson/sqlLogin for a > > different approach that works for me in early testing. Note that it > > needs additional work before being turned loose on a live site.

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RE: [Zope] LoginManager broken?
by Mayers, Philip J 12 Dec '00

12 Dec '00

Ye gods... Ok, steps I had to take to get LoginManager working 1) Create a folder, call it "test" 2) In that folder, add a LoginManager with a GenericUserSource, with *just* "Basic Auth Login" selected. Leave the rest as defaults. 3) In the newly-created ACL-users folder, you'll find "forbiddenPage", "loginForm" and "logoutForm" - you can delete loginForm. Give logoutForm and forbiddenPage the "Manager" proxy role 4) In the UserSource folder/object underneath acl_users, add a) A connection to the SQL database you'll be using b) an SQL method "check_user" with a parameter "username", which does a "select username from usertable where username = <dtml-sqlvar username type=string>" c) an SQL method "check_user" with parameters "username" and "password", which does a "select username from usertable where username = <dtml-sqlvar username type=string> and password = <dtml-sqlvar password type=string>" d) an SQL method "get_roles" with a paramter "username" that does "select groupname from group_members where username = <dtml-sqlvar username type=string>" (or whatever is appropriate for your database) 5) Add the DTML methods WITH A DIFFERENT NAME - DON'T add userAuthenticate,userExists,userRoles - add (say) xuserAuthenticate,xuserExists,xuserRoles a) xuserExists should read: <dtml-in "HDB_check_user(username=username)"> <dtml-if "_['sequence-item'].username == username"> <dtml-return "_.int('1')"> </dtml-if> </dtml-in> <dtml-return "_.int('0')"> b) xuserAuthenticate should read: <dtml-in "HDB_check_password(username=username,password=password)"> <dtml-if "_['sequence-item'].username == username"> <dtml-return "_.int('1')"> </dtml-if> </dtml-in> <dtml-return "_.int('0')"> c) xuserRoles should read <dtml-call "REQUEST.set('ret', '')"> <dtml-in "HDB_get_roles(username=username)"> <dtml-call "REQUEST.set('ret', ret+' '+groupname)"> </dtml-in> <dtml-return ret> 6) Give the "Manager" proxy role to the DTML methods, so they can access the SQL methods you just created 7) Turn off acquisition of the permissions on the test folder, and be sure to add read permissions to any local roles you're using 8) Make a copy of the test folder now, before it all goes wrong... 9) Batch rename the DTML method (e.g. s/x(.*)/$1/g in perl-speak) - if you're lucky, it will work. I have to say, I'm not hugely impressed... Regards, Phil +----------------------------------+ | Phil Mayers, Network Support | | Centre for Computing Services | | Imperial College | +----------------------------------+ -----Original Message----- From: Mayers, Philip J [mailto:p.mayers@ic.ac.uk] Sent: 11 December 2000 20:34 To: 'zope(a)zope.org' Subject: RE: [Zope] LoginManager broken? Thanks, I'll take a look. Re: LoginManager - After a fast turnaround (confirming my ample faith in Open Source software) Magnus Heino pointed me in the right direction - the dtml methods and SQL objects need to be inside the UserSource folder, *not* the LoginManager folder as the Howto implies (or maybe I just can't read...). Can someone confirm that the SQL methods need to be inside the UserSource folder? (which is mildly annoying, but there we go...) I'm still having some problems getting multiple roles working, but it's behaving itself for now. Now all I have to do is solve my LIMIT problem... Regards, Phil +----------------------------------+ | Phil Mayers, Network Support | | Centre for Computing Services | | Imperial College | +----------------------------------+ -----Original Message----- From: dan(a)sol.control.com [mailto:dan@sol.control.com] Sent: 11 December 2000 20:18 To: Mayers, Philip J Cc: 'zope(a)zope.org' Subject: Re: [Zope] LoginManager broken? You might look at http://www.zope.org/Members/dlpierson/sqlLogin for a different approach that works for me in early testing. Note that it needs additional work before being turned loose on a live site. Dan Pierson "Mayers, Philip J" <p.mayers(a)ic.ac.uk> writes: > Does it even *work*? Even a little bit? Because other than repeating the > same process 12 damn times, so far I'm not convinced. Maybe I'll look in the > source code to see if there's actually anything in the files (other than a > HOWTO.txt, which is empty, which BTW is more annoying than there not being > one). > > The "LoginManager with SQL database" on the Zope site seems to end up with > me having a folder I can't access through the management interface (unless > you count "management" as "this is the index_html" document) Wow, thanks! > Now I have to delete it and start all over again... > > In all seriousness - there *must* be one person who has gotten an SQL-backed > LoginManger working with 2.2.4 - surely? > > Thanks for all the great work (little bugs aside...) - Zope is a wonderful > product! Now if only it could serve XML as well as Cocoon... > > Regards, > Phil > > +----------------------------------+ > | Phil Mayers, Network Support | > | Centre for Computing Services | > | Imperial College | > +----------------------------------+ > > _______________________________________________ > 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 )

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