- Zope - Zope lists

[davidbro@namshub.org: Re: [Zope] BIG security hole in www.zope.org]
by davidbro＠namshub.org 16 Sep '99

16 Sep '99

forgot to copy the list.

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RE: [Zope] Maximum zope database size BUG on Solaris
by Michel Pelletier 16 Sep '99

16 Sep '99

> -----Original Message----- > From: codelarvs(a)ciudad.com.ar [mailto:codelarvs@ciudad.com.ar] > Sent: Thursday, September 16, 1999 5:28 PM > To: zope(a)zope.org > Subject: [Zope] Maximum zope database size BUG on Solaris > > > I have Zope 2.0.0 binary distribution on a SPARC SunOS 5.7. > My problem is that when the database grows up to 2gb and I try to > keep adding files, Zope reports the folowing error: > > " Zope has encountered an error while publishing this resource. > Error Type: OverflowError > Error Value: integer addition " Please send the traceback. -Michel

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Newbie: help with math syntax?
by David Robson 16 Sep '99

16 Sep '99

...in fact I�m not quite experienced enough to be a newbie. I�m trying to write a series of simple DTML Documents to learn syntax. I�ve read lots of Zope docs but haven�t found an example of add, subtract, multiply, divide. (Probably too simple.) Here�s my unsuccessful attempt in two DTML pages: Code for index_html  <h2></h2> <p> This is the  Document. <BLOCKQUOTE> <FORM ACTION="addTotal"> <P>Enter a number: <INPUT TYPE="text" SIZE="3" NAME="number1"></P> <P>Enter a number: <INPUT TYPE="text" SIZE="3" NAME="number2"></P> <P>Enter a number: <INPUT TYPE="text" SIZE="3" NAME="number3"></P> <INPUT TYPE="submit" VALUE="Compute"> </FORM> </p> </BLOCKQUOTE>  /\/\/\/\/\/\ The above DTML Document seems to work OK. It calls the DTML Document addTotal which reads back the parameters OK but won�t sum them�no doubt because I�m using the wrong syntax. Here�s code for addTotal including my unsuccessful guesses.  <h2></h2> <P>The first number is </P> <P>The second number is </P> <P>The third number is </P> The total is: ++<BR> Not!</P> <P>Perhaps the total is:             <BR><BR>Still not!<BR><BR>  /\/\/\/\ Can someone please write the correct sum expression for me? While you�re at it, how about the expression for finding the square root of one of the numbers? Thanks! === David Robson robson555(a)yahoo.com Computer Support Towson High School, MD, USA __________________________________________________ Do You Yahoo!? Bid and sell for free at http://auctions.yahoo.com

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RE: [Zope] ZODBCA connection question
by Michel Pelletier 16 Sep '99

16 Sep '99

> -----Original Message----- > From: Jim Sanford [mailto:jsanford@atinucleus.com] > Sent: Thursday, September 16, 1999 4:54 PM > To: IPM Return requested (Receipt notification requested) > Subject: [Zope] ZODBCA connection question > > > Is it possible to set Zope to close an open ODBC connection > once it has been > idle for a specified period of time, then reopen the > connection when traffic > comes in that needs it? If a database adapter sits around in memory unused long enough, Zope will deactivate it (store it to disk, remove it from memory), when it does this, the connection goes away. When the object is activated, it is re-connected. Idle timeout, on the other hand, should be a function of the server. It is DA specific whether or not the DA is smart enough to reconnect after being idle timed out by the server. -Michel

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Maximum zope database size BUG on Solaris
by codelarvs＠ciudad.com.ar 16 Sep '99

16 Sep '99

I have Zope 2.0.0 binary distribution on a SPARC SunOS 5.7. My problem is that when the database grows up to 2gb and I try to keep adding files, Zope reports the folowing error: " Zope has encountered an error while publishing this resource. Error Type: OverflowError Error Value: integer addition " i've searched in the mailing list archives and fond that the problem may be because my operating system doesnt allow files over 2GB, but Solaris seems to allow them. Is this a Bug? Or I'm doing something wrong? If this is a limitation from my os, is there some way to suprpassit from zope? Thanks for reading!

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Maximum zope database size BUG on Solaris
by codelarvs＠ciudad.com.ar 16 Sep '99

16 Sep '99

I have Zope 2.0.0 binary distribution on a SPARC SunOS 5.7. My problem is that when the database grows up to 2gb and I try to keep adding files, Zope reports the folowing error: " Zope has encountered an error while publishing this resource. Error Type: OverflowError Error Value: integer addition " i've searched in the mailing list archives and fond that the problem may be because my operating system doesnt allow files over 2GB, but Solaris seems to allow them. Is this a Bug? Or I'm doing something wrong? If this is a limitation from my os, is there some way to suprpassit from zope? Thanks for reading!

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ZODBCA connection question
by Jim Sanford 16 Sep '99

16 Sep '99

Is it possible to set Zope to close an open ODBC connection once it has been idle for a specified period of time, then reopen the connection when traffic comes in that needs it? __________________________________________________________________ Jim Sanford ^ Database Engineer ^ ^ ^ Accelerated Technology, Inc. ^ ^ 720 Oak Circle Drive East ^ ^ ^ Mobile, AL 36609 ^ ^ ^ Voice: 334-661-5770 fax: 334-661-5788 ^ ^ E-Mail: jsanford(a)atinucleus.com Web: http://www.atinucleus.com Source Code, No Royalties, Any CPU...It just make sense ! __________________________________________________________________

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RE: [ZDP] managing zope projects in a structured fashion
by Michel Pelletier 16 Sep '99

16 Sep '99

This question would probably best be asked on the zope list, not the zdp list. > -----Original Message----- > From: Gregor Ottmann [mailto:go@pbm.de] > Sent: Thursday, September 16, 1999 2:22 PM > To: zdp(a)zope.org > Subject: [ZDP] managing zope projects in a structured fashion <snip> > the problem actually looks like this: we want to set up some > special folder > classes for a certain project that should not be available to other > projects. the most obvious way to do so seems to be creating > a corresponding > product, creating a factory and simply add instances of our > custom folder > object to the project's main folder. > > this way of dealing with the problem has one serious disadvantage: the > global 'products'-folder will surely get terribly bloated if we should > migrate all of our projects (abou 50 websites at this time) > to zope, and the > same will surely happen to the 'add object'-selectbox. You can restrict who can add what object by Role. Thus, if a user is in a role that can only see 'Site X' they will only be able to add object (and only see those objects in the add folder) that they have permission to add. This is done with Permission objects. This compliments well with the security paradigm of Zope, where you compartmentalize users by role anyway. > the question is: is there any way to create a products-folder > as a subfolder > of a given project's base folder? or is there at least some > way to organize > products via subfolders of the common products-folder? No. > i really don't want to push you, but the decision of wether > using zope or > continuing to use php3 has to be made during the following 5 > days, so i > would be terribly happy if you could answer soon. Hope you make the right decision! ;) -Michel

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RE: [Zope] Newbie: help with math syntax?
by Jeffrey Shell 16 Sep '99

16 Sep '99

> Code for index_html > > >  [snip!] > > <FORM ACTION="addTotal"> > <P>Enter a number: > <INPUT TYPE="text" SIZE="3" NAME="number1"></P> > <P>Enter a number: > <INPUT TYPE="text" SIZE="3" NAME="number2"></P> > <P>Enter a number: > <INPUT TYPE="text" SIZE="3" NAME="number3"></P> > > <INPUT TYPE="submit" VALUE="Compute"> > </FORM> Zope (the ZPublisher part of it actually) has a really powerful feature here to marshal form values into the right sort of objects. In this case, you probably want integers or floats. Instead of: NAME="number1", try NAME="number1:int" or NAME="number1:float" (you may want to put default values of zero in these fields as well). When the form is submitted, the value for 'number1' will be an integer or float object, which you can then do math on, like thus: The total is: <BR> For doing square roots, it _might_ be something like  Behold the power of the new www.zope.org site and the documentation and how-to's it contains, as well as the Zope Quick Reference. They'll have more information on this.

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RE: [Zope] Zope vs. Microsoft Dev Days 99 - mini-report
by Jeffrey Shell 16 Sep '99

16 Sep '99

> However, the idea of seperating "business logic" from "presentation" > sounds good. Presumably Python methods represent "business logic" > and dtml methods are the presentation layer. Making it easier to use > "external procedures" might be a big win (no flames on PythonMethods > vs. External Methods, ok). ASP's and COM components aren't editable through the web in the same way that DTML Methods and Friends are, and therefor aren't exposed to the same security risks. (And we all know that Microsoft is the queen of good security. *Coff!* :-). But granted Microsoft also has fairly decent development tools and enough kludgy server-side extensions (frontpage extensions, their hack of WebDAV) that may ease this somewhat. Having DTML Methods as the main way of scripting being open through the web interface, it can become a little too easy to expect to do everything in this situation. In essence, Zope Products are to Zope what COM components are to MS. Products are full Python classes that support an interface to be published through the web and also accessed through DTML Scripting, as well as behaving to the Zope security model. Granted writing a Product is not as easy as writing some DTML Methods, or even External Methods; but writing a COM object isn't a cakewalk either. But again, MS has the development tools and dancing paperclips and wizards to supposedly help the developer. ZClasses, when used with External Methods or subclassing from disk based Products, are another good way of seperating business logic. Business Logic, being as important as it is, is not something I would want to write in DTML, and probably not even in PythonMethods due to security restrictions. Basically if you're looking for similarity between Zope and ASP/COM in this aspect, ASP Pages are basically scripting COM objects. DTML Scripting is basically scripting Zope objects, which are in the form of the basic Products (DTML Methods, Documents, Folders (ie <dtml-call "SomeFolder.manage_changeProperties(foo='bar')">)), ZClass Instances, etc. But also remember that ASP/COM doesn't have Acquisition, web-object traversal, ZODB, Zope Security, the through-the-web near-total-management-without-requiring-ActiveX-or-Java, or other things that Zopers take for granted. These features give Zope a lot of power, but also present some interesting challenges in that they're quite a bit different way of thinking than most models that we may be used to. And...we don't have an IDE that wraps up the development and deployment of Products and External Methods. My suspicion is that Microsoft makes this sort of deployment (through the use of all those darn Wizards) a bit easier. Submissions in this area are welcomed.

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