September 1999 - Zope-Dev

Announce: PythonMethod 0.0.1
by Evan Simpson 09 Sep '99

09 Sep '99

It works. I'm really tired. For more, see http://zope.org:18200/Members/4am/PythonMethod

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WebDAV with IExplorer
by Rik Hoekstra 09 Sep '99

09 Sep '99

Some time ago I wrote a post about the problems IExplorer causes with WebDAV in Zope. For instance when copying a number of files to a "WebFolder", sometimes files are not copied, or not copied properly. Perhaps not much of a problem, but anyway too much of a problem if you want to use it for end users. Not using Win/IE is no solution as most users are using Windows _and_ IE is currently the only WebDAV client available. (Nobody seems to care, however, as no-one replied. Oh well, cluttering the list further on my own then.) Today, I discovered that at least part of the problem was related to a known (to pythonwin users anyway) very annoying 'feature' of Win95/98/NT: case (in)sensitivity. For example, if you create a folder 'foo' within a Zope WebFolder, it is created allright. However, Win95 converts the first character of its filenames to uppercase, even if it shows them in lowercase !?!?!. So you end up with a foldername in your webfolder which shows as if it were lower case (and the http request apparently asks the server for a lower case folder name), but in Zope it is with a capital first character. Manually changing the name of the Zope folder to all lower case will solve the problem. However, if you copy a tree of items (with folders/directories in them) the same problem occurs again - hampering the effective use of WebDAV. A few remarks: - I don't think changing the case of the folder in the webfolder will change anything - perhaps some of the Windows ftps clients could be suffering from the same problem??? Rik Hoekstra

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RE: [Zope] mount zope server (was: Import from Zope-1 to Zope-2)
by Jay, Dylan 09 Sep '99

09 Sep '99

> -----Original Message----- > From: Michel Pelletier [mailto:michel@digicool.com] > Sent: Thursday, September 09, 1999 15:20 > To: Jay, Dylan > Cc: zope-dev(a)zope.org; zope(a)zope.org > Subject: Re: [Zope] Import from Zope-1 to Zope-2 > > > "Jay, Dylan" wrote: > > > > related note heres another idea I had. How about a product > that can mount > > one zope ODB into another. Using XML-RPC or something to > connect the two > > sites togeather over the internet. It may not be fast > enough for using that > > way but at least it would be really easy for transfering > data between zope > > odb's. > > We are entertaining the possibility of putting ZPublisher.Client into > the _ DTML Namespace. I am primarily championing the idea. > > 'Client' offers many cool uses. 'Client.Function' will call a remote > 'Zope Method' which marshals simple types around (int, list, > tuple etc.) > and act as Zope oriented RPC. 'Client.call' is a convienent wrapper > around 'Client.Function'. These both have the upshot of working with > any > URL, turning non 'object content' into file Message objects and return > them in a list. > > Even cooler, 'Client.Object' will create surrogate objects of remote > Zope objects. If you have a DTML Document on machine A, then > Machine B > could say: > > <dtml-with "_.Client.Object('http://A/YourDocument')"> > <dtml-var id> > </dtml-with> > > and print 'YourDocument'. You can pass autentication > information in to > all of the calls to access restricted object. So what would happen if this wrapper object was passed back using a <dtml-return> call or even a __bobo_traverse_ method? Would further resolution in the object happen using the link or would it break and start trying to find objects in the local context?

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Re: [Zope-dev] File input retuns what type?
by Jason Spisak 09 Sep '99

09 Sep '99

Kevin, I changed the name of the form element, and the code refering to it to a wacky word, and I get the same traceback. It just wants to make that form element a string. I tried different browsers/platforms too. All my best, jason Kevin Dangoor wrote: > > This is a shot in the dark, but did you try a field name other than "file"? > That sounds so generic, I'm wondering if Zope has something else defined > that is interfering. Another way to know for sure would be to reference > REQUEST.form['file'] > > Kevin > > -----Original Message----- > From: Jason Spisak <webmaster(a)MTEAR.COM> > To: zope-dev(a)zope.org <zope-dev(a)zope.org> > Date: Wednesday, September 08, 1999 9:58 PM > Subject: [Zope-dev] File input retuns what type? > > >I am trying to upload a file into a property. > >I am using code that works to update the property: > > > >My form reads <input type="file" name="file" size="25" value=""> pretty > >standard fair. > > > > > > > > > > > >But only when creating a ZClass instance I get this traceback: > > > >Error Type: AttributeError > >Error Value: 'string' object has no attribute 'read' > > > >Traceback (innermost last): > > File /Zope/lib/python/ZPublisher/Publish.py, line 214, in publish_module > > File /Zope/lib/python/ZPublisher/Publish.py, line 179, in publish > > File /Zope/lib/python/Zope/__init__.py, line 201, in > zpublisher_exception_hook > > (Object: RoleManager) > > File /Zope/lib/python/ZPublisher/Publish.py, line 165, in publish > > File /Zope/lib/python/ZPublisher/mapply.py, line 160, in mapply > > (Object: ResumeClass_add) > > File /Zope/lib/python/ZPublisher/Publish.py, line 102, in call_object > > (Object: ResumeClass_add) > > File /Zope/lib/python/OFS/DTMLMethod.py, line 145, in __call__ > > (Object: ResumeClass_add) > > File /Zope/lib/python/DocumentTemplate/DT_String.py, line 502, in > __call__ > > (Object: ResumeClass_add) > > File /Zope/lib/python/DocumentTemplate/DT_With.py, line 148, in render > > (Object: > >ResumeClass.createInObjectManager(_.str(PARENTS[-1].counter), REQUEST)) > > File /Zope/lib/python/DocumentTemplate/DT_Util.py, line 321, in eval > > (Object: REQUEST['file'].read()) > > File <string>, line 0, in ? > > File /Zope/lib/python/DocumentTemplate/DT_Util.py, line 125, in > careful_getattr > >AttributeError: (see above) > > > >Doesn't the <input type="file"> return a file object in zope? > >The above code works to update the property, why not to create it? > >Any ideas? > > > >Jason Spisak > >webmaster(a)mtear.com > > > >_______________________________________________ > >Zope-Dev maillist - Zope-Dev(a)zope.org > >http://www.zope.org/mailman/listinfo/zope-dev > > > >(To receive general Zope announcements, see: > >http://www.zope.org/mailman/listinfo/zope-announce > > > >For non-developer, user-level issues, > >zope(a)zope.org, http://www.zope.org/mailman/listinfo/zope ) > >

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File input retuns what type?
by Jason Spisak 09 Sep '99

09 Sep '99

I am trying to upload a file into a property. I am using code that works to update the property: My form reads <input type="file" name="file" size="25" value=""> pretty standard fair.    But only when creating a ZClass instance I get this traceback: Error Type: AttributeError Error Value: 'string' object has no attribute 'read' Traceback (innermost last): File /Zope/lib/python/ZPublisher/Publish.py, line 214, in publish_module File /Zope/lib/python/ZPublisher/Publish.py, line 179, in publish File /Zope/lib/python/Zope/__init__.py, line 201, in zpublisher_exception_hook (Object: RoleManager) File /Zope/lib/python/ZPublisher/Publish.py, line 165, in publish File /Zope/lib/python/ZPublisher/mapply.py, line 160, in mapply (Object: ResumeClass_add) File /Zope/lib/python/ZPublisher/Publish.py, line 102, in call_object (Object: ResumeClass_add) File /Zope/lib/python/OFS/DTMLMethod.py, line 145, in __call__ (Object: ResumeClass_add) File /Zope/lib/python/DocumentTemplate/DT_String.py, line 502, in __call__ (Object: ResumeClass_add) File /Zope/lib/python/DocumentTemplate/DT_With.py, line 148, in render (Object: ResumeClass.createInObjectManager(_.str(PARENTS[-1].counter), REQUEST)) File /Zope/lib/python/DocumentTemplate/DT_Util.py, line 321, in eval (Object: REQUEST['file'].read()) File <string>, line 0, in ? File /Zope/lib/python/DocumentTemplate/DT_Util.py, line 125, in careful_getattr AttributeError: (see above) Doesn't the <input type="file"> return a file object in zope? The above code works to update the property, why not to create it? Any ideas? Jason Spisak webmaster(a)mtear.com

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RE: [Zope-dev] Can't get ZClass baseclass to behave as DTML Metho d
by Michel Pelletier 08 Sep '99

08 Sep '99

> -----Original Message----- > From: Martijn Faassen [mailto:m.faassen@vet.uu.nl] > Sent: Wednesday, September 08, 1999 11:45 AM > To: zope-dev(a)zope.org > Subject: [Zope-dev] Can't get ZClass baseclass to behave as > DTML Method > > > Hi there again, > > Python and DTML Methods, one way or another they seem to be the theme > for me today.. > > A couple of weeks ago I asked the same question (I encountered it in > different circumstances). I'm trying to create a ZClass > (deriving from a > Python base class) that behaves like a DTML _method_. > > To this purpose, I tried to define this __call__: > > def __call__(self, client, REQUEST=None): > "Call this ZClass as a DTML method." > return self.render(client, REQUEST) > > in the base class that is inherited by a ZClass. > > If I grok the answers I got today by Martijn Pieters and Evan Simpson > right, the arguments mean the following: > > self - the instance of this ZClass > client - the object we're calling this method on (in my case an XML > node) > REQUEST - the regular request object > > the 'render' function figures out how to display the node (client) and > returns the resulting string. > > This is however not working -- if I call an instance 'foo' > like this on > an XML node, like this: > > xmldoc/e7/e14/foo > > instead it'll display index_html (that is acquired and not defined on > the ZClass). It apparently isn't calling __call__ at all. It doesn't call *your* __call__ or it raises an exception? It might be calling a __call__ method defined in a Base class that supercedes the one you define. -Michel

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Zope.org beta topic suggestions
by Mike Pelletier 08 Sep '99

08 Sep '99

Hi. I am in the process of enriching Zope.org Beta's Z Classes to provide more information about their content. For instance, if you take a look at HowTo's new Properties view, you'll notice two new options-- 'Difficulty' and 'Topic'[1]. 'Difficulty' can be one of 'Beginner', 'Intermediate' or 'Advanced'. 'Topic' contains any number of pre-defined How-To topics. I am interested in getting feedback from users about how they would like to see the Z Classes enriched. Each property I add to the Z Classes will offer a list of options as opposed to free text. What I want to know is, what options should be available for each Z Class's topics, and what additional properties, if any, should be added? Take a look at HowTo for an example, and don't be shy. Mike. [1] Please don't confuse my use of 'topic' in this context with Amos's in yesterday's topic proposal. They are different things. -- Mike Pelletier email: mike(a)digicool.com Mild mannered software developer icq: 7127228 by day, super villain by night. phone: 519-884-2434

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Permission to Add ZClasses
by Jason Spisak 08 Sep '99

08 Sep '99

Gang, I have a ZClass called foo, and I have a user with a role that can "Add foos". The user can acces the fooClass_Addform, but not the fooClass_factory. Is there anything else that I have to lever 'on' in order to let people addZClass instances? The Add Permission was created default by ZClasses. The Manager Role can add them, but the other role, even with every permission checked inthe root folder and everything else aqcuiring, cannot. Jason Spisak webmaster(a)mtear.com

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Re: [Zope-dev] (no subject)
by Kevin Dangoor 08 Sep '99

08 Sep '99

I recognize that code :) That external method specifically copies all objects in a Folder (fobj) to a destination Folder (tobj). I wrote it for a very specific purpose. You may just want to use manage_clone. (You can look at all of the available copy/paste functions in Zope/lib/python/OFS/CopySupport.py). >From DTML, you could probably do something like: <dtml-call "REQUEST.set('source', docID)"> <dtml-with destinationFolder> <dtml-call "manage_clone(source, 'newID', REQUEST)"> </dtml-with> Replace "docID" with your document's ID, destinationFolder with your destinationFolder and make sure that you're able to get to both of those objects (via acquisition or whatever). If you're still havnig trouble, it would help to know the specific context in which you're calling that external method or manage_clone... Kevin -----Original Message----- From: Anderson Ami <a_ami(a)hotmail.com> To: phd(a)emerald.netskate.ru <phd(a)emerald.netskate.ru>; a_ami(a)hotmail.com <a_ami(a)hotmail.com> Cc: zope-dev(a)zope.org <zope-dev(a)zope.org> Date: Wednesday, September 08, 1999 10:29 AM Subject: Re: [Zope-dev] (no subject) >yes, just copy and paste, but i used a follow source and it not work, just >work with folders. > >def candp(fobj, tobj, REQUEST): "Copy and paste" ids = fobj.objectIds() > if not ids: return cdata = fobj.manage_copyObjects(ids) > tobj.manage_pasteObjects(cdata, REQUEST) > >anderson

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Calling a DTML Method from Python
by Martijn Faassen 08 Sep '99

08 Sep '99

Hi there, I'm attempting to write a product that calls a DTML method during its processing. The product keeps a table of DTML method objects and has a method that determines what DTML method to call, and then calls it. I'm not sure _how_ I should call a DTML method object, though. Example: class Foo: def __init__(self): self.map = {} def setMap(self, keyword, method): self.map[keyword] = method def render(self, keyword): return self.map[keyword]() # ?? What arguments are needed? Then, from DTML: <dtml-call "foo.setMap('hey', somemethod)"> ... <dtml-var "foo.render('hey')"> Is this possible at all? I assume render() actually needs extra arguments to make this work, but which? The DTML Method source defines this: def __call__(self, client=None, REQUEST={}, RESPONSE=None, **kw): What does the client argument stand for? Anything else I should watch out for? I keep running into mysteries like this continuously, it seems... Regards, Martijn

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