November 1999 - Zope

RE: [Zope] "Front door" topic
by Paul Everitt 09 Nov '99

09 Nov '99

Yep, this is indeed an excellent post. Others have forwarded it to me. The good news is that I've collated all the comments, come up with an action plan, and come up with a mockup for a new Zope.org home page. When I have some subsequent progress I'll open it up for review. If anybody out there has good web design experience and would like to help...HELP! :^) --Paul Paul Everitt Digital Creations paul(a)digicool.com 540.371.6909 ----------------------------------------- The Open Source Zope application server http://www.zope.org/ > -----Original Message----- > From: Tres Seaver [mailto:tseaver@palladion.com] > Sent: Tuesday, November 09, 1999 4:32 PM > To: zope(a)zope.org; Ron Mahlmann > Subject: [Zope] "Front door" topic > > > This is from an excellent post to comp.lang.python, and would > be an excellent > addition to the "front door" Zope website: > > Evan Simpson <evan(a)tokenexchange.com> wrote: > > > > There has been a lot of discussion lately on the Zope mailing list > > (zope(a)zope.org) about making this sort of information more readily > > available on the website, but here's a brief intro: > > > > Zope has several parts, which work well together, but are all > > optional: > > > > 1. ZServer: A Medusa-based multi-threaded asynchronous server which > > accepts HTTP, FTP, and monitor (special Python client) connections. > > Usually, it passes requests from these connections to... > > > > 2. ZPublisher: An ORB which converts HTTP, FTP, XML-RPC, WebDAV, > > etc. requests into traversal of an object hierarchy and returns the > > result of rendering the target object. These objects are normally > > stored in... > > > > 3. ZODB: A versioning, transaction-based object store with automatic > > object persistence and conflict handling. ZODB stores an object > > hierarchy as a single file (2GB limit being worked on) and appends > > new versions of objects when their request transaction is comitted. > > This allows extensive undo, and requires occasional packing to > > eliminate old, unwanted versions. Most HTML is generated by > > standard Zope objects using... > > > > 4. DTML: An embedded language similar to ASP and PHP, except that > > expressions are written in Python and have access to the full power > > of the rest of Zope, including... > > > > 5. Acquisition: A feature of standard Zope objects which allows them > > to change their behavior automatically based on the context in which > > they are called. Hard to describe, but very powerful, as are... > > > > 6. Products: New objects or collections of objects can be added to > > Zope by simply installing a Python package in the Products > > subdirectory and resetting the server. Current Products include > > database adapters, threaded discussions, virtual host managers, and > > many others. Of course, if you don't want to learn Python you can > > always create... > > > > 7. ZClasses: Object classes defined through the web management > > interface by assembling standard Zope parts. These can provide a > > wide range of customized objects. > > > > I haven't really gotten into the user/role/permission security > > model, or the extensive web management interface through which you > > typically interact with Zope. I may have forgotten other bits, too. > > There's a lot there :-) > > > -- > ========================================================= > Tres Seaver tseaver(a)palladion.com 713-523-6582 > Palladion Software http://www.palladion.com > > _______________________________________________ > 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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Zope Devs in SF Bay Area?
by Michael Simcich 09 Nov '99

09 Nov '99

Any here know of any Zope developers in the SF Bay Area? Or any place a list of such would be available? I didn't find anything like a Zope developer list on the Digital Creations website, but wonder if there shouldn't be one. Thanks Michael Simcich AccessTools

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Zope vs. ColdFusion for e-commerce development
by Ben Galbraith 09 Nov '99

09 Nov '99

Zope Folks, I'm with a new e-commerce startup and we're currently evaluating the development tools we'll be using to create our website. The platform will either be Sun hardware running Solaris 7/Apache, or Intel/Linux boxes. We initially evaluated four solutions: mod_perl, PHP (using Apache module support), ColdFusion, and Zope. We've eliminated mod_perl because of maintenance nightmares, PHP because, well, we just did, and now we're down to ColdFusion and Zope. Initially I favored Zope, but there are a few concerns I have about it. First off, the size of the ColdFusion development pool and it's development history suggest greater stability and a more mature feature set. Second, it seems that ColdFusion offers all the functionality that Zope does and then some. Third, ColdFusion seems to offer similiar performance. Fourth, the database connectivity seems to be equal to Zope's. Fifth, their tag-based programming language seems to offer equivalent functionality to Zope's. Sixth, I can find more ColdFusion developers than I can shake a stick at, but I have to explain to everyone I meet what Zope is. So, as my lack of information leads me to believe, there are only two drawbacks to ColdFusion as compared to Zope: (1) I have to pay $3.5k for each license, and (2) Zope has a superior model for delegating ownership to different people for the website. Could you correct any misconceptions I have and explain to me why I should choose Zope over ColdFusion? I want to select the tool by Wed. or Thurs., so a quick reply would be appreciated. Thanks! Ben

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Re: [Zope] Jon Udell (Byte) on Linux/ODBC and MySQLDA difficulties
by Ian Willis 09 Nov '99

09 Nov '99

I've never used postgresql with zope but I have used it as a back end for applications. I've also used mysql and Oracle. Mysql and Postgresql are very different beasts Mysql is fairly fast and light whereas postgresql is slower and needs more resources. But for sheer flexability it wins hands down as does its support for big database features, though unfortunately it is not yet in the same class as oracle for supporting enterprise environment. I've never had a problem with its reliability in a production environment as long as you feed and water it enough and are sensible about when to use a release. Christopher Petrilli wrote: > > On 11/9/99 1:57 PM, Geoff Nordli at geoff(a)gnaa.net wrote: > > > What about Postgresql? Do people feel that is an acceptable > > option? > > Feature set wise ,it's nice, but it's had some pretty rough roads since > it's > moved to SQL in bug problems, and I've heard serious performance > restrictions. That having been said, I know a lot of people who use it > heavily. > > Chris > -- > | Christopher Petrilli Python Powered Digital Creations, Inc. > | petrilli(a)digicool.com http://www.digicool.com > > _______________________________________________ > 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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"Front door" topic
by Tres Seaver 09 Nov '99

09 Nov '99

This is from an excellent post to comp.lang.python, and would be an excellent addition to the "front door" Zope website: Evan Simpson <evan(a)tokenexchange.com> wrote: > > There has been a lot of discussion lately on the Zope mailing list > (zope(a)zope.org) about making this sort of information more readily > available on the website, but here's a brief intro: > > Zope has several parts, which work well together, but are all > optional: > > 1. ZServer: A Medusa-based multi-threaded asynchronous server which > accepts HTTP, FTP, and monitor (special Python client) connections. > Usually, it passes requests from these connections to... > > 2. ZPublisher: An ORB which converts HTTP, FTP, XML-RPC, WebDAV, > etc. requests into traversal of an object hierarchy and returns the > result of rendering the target object. These objects are normally > stored in... > > 3. ZODB: A versioning, transaction-based object store with automatic > object persistence and conflict handling. ZODB stores an object > hierarchy as a single file (2GB limit being worked on) and appends > new versions of objects when their request transaction is comitted. > This allows extensive undo, and requires occasional packing to > eliminate old, unwanted versions. Most HTML is generated by > standard Zope objects using... > > 4. DTML: An embedded language similar to ASP and PHP, except that > expressions are written in Python and have access to the full power > of the rest of Zope, including... > > 5. Acquisition: A feature of standard Zope objects which allows them > to change their behavior automatically based on the context in which > they are called. Hard to describe, but very powerful, as are... > > 6. Products: New objects or collections of objects can be added to > Zope by simply installing a Python package in the Products > subdirectory and resetting the server. Current Products include > database adapters, threaded discussions, virtual host managers, and > many others. Of course, if you don't want to learn Python you can > always create... > > 7. ZClasses: Object classes defined through the web management > interface by assembling standard Zope parts. These can provide a > wide range of customized objects. > > I haven't really gotten into the user/role/permission security > model, or the extensive web management interface through which you > typically interact with Zope. I may have forgotten other bits, too. > There's a lot there :-) -- ========================================================= Tres Seaver tseaver(a)palladion.com 713-523-6582 Palladion Software http://www.palladion.com

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How can you tell if what kind of object it is?
by Adrian Esteban Madrid 09 Nov '99

09 Nov '99

Is there something like _.isDTMLMethod, _.isDTMLDocument, _.isFolder hidden somewhere? I've been browsing the documentation but have not been able to figure this out. I need that to create a dynamic navigational bar that sshould get set like this: <dtml-call "REQUEST.set('fobs', [])">  <dtml-call "REQUEST.set('dobs', [])">   <dtml-in "PARENTS[0].objectValues()" skip_unauthorized> <dtml-let item="_.getitem('sequence-item', 0)"> <dtml-unless "hasProperty('hidden') and hidden"> <dtml-if "item.isFolder">  <dtml-call "fobs.insert(0, item)"> <dtml-elif "item.isDTMLMethod">  <dtml-call "dobs.insert(0, item)"> </dtml-if> </dtml-unless> </dtml-let> </dtml-in> Any ideas? -- Adrian Esteban Madrid Network Support, ATS Brigham Young University

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Re: [Zope] How can you tell if what kind of object it is
by Rik Hoekstra 09 Nov '99

09 Nov '99

> Is there something like _.isDTMLMethod, _.isDTMLDocument, _.isFolder > hidden somewhere? I've been browsing the documentation but have not been > able to figure this out. I need that to create a dynamic navigational > bar that sshould get set like this: > > <dtml-call "REQUEST.set('fobs', [])">  > <dtml-call "REQUEST.set('dobs', [])">  >  > <dtml-in "PARENTS[0].objectValues()" skip_unauthorized> > <dtml-let item="_.getitem('sequence-item', 0)"> > <dtml-unless "hasProperty('hidden') and hidden"> > <dtml-if "item.isFolder">  > <dtml-call "fobs.insert(0, item)"> > <dtml-elif "item.isDTMLMethod"> try: <dtml-elif "item.meta_type=='DTML Method'"> (not sure about the underscore - look it up in the ZQR. The point is that the meta type determines the type of the property) <snip> Rik

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Your manage_users problem
by Tres Seaver 09 Nov '99

09 Nov '99

OK, I see the issue: submit and REQUEST are positional arguments, and you are trying to call manage_users)_ as though they were a keyword argument. Try: <dtml-call "acl_users.manage_users( 'Edit', REQUEST )"> -- ========================================================= Tres Seaver tseaver(a)palladion.com 713-523-6582 Palladion Software http://www.palladion.com

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This must be an intractable problem
by Daniel G. Rusch 09 Nov '99

09 Nov '99

Hey all Does anyone know why neither of these change the password, no errors are reported and the page they are on renders fine. <dtml-call "REQUEST.set('name','TestVictim')"> <dtml-call "REQUEST.set('password','1')"> <dtml-call "REQUEST.set('confirm','1')"> <dtml-call "acl_users.manage_users(submit='Edit', REQUEST=REQUEST)"> <dtml-call "REQUEST.set('name','TestVictim')"> <dtml-call "REQUEST.set('password','1')"> <dtml-call "REQUEST.set('confirm','1')"> <dtml-call "acl_users.manage_users(submit='Change', REQUEST=REQUEST)"> DR

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Backup of Zope DB/Site on NT...
by Jos Yule 09 Nov '99

09 Nov '99

Hello! I've seen some posts about tools used to back up the ZDB on Linux and was wondering what i should do if i want to back up the Database/site on an NT version of Zope? In (sort of) the same vein, what hardware would be best (in a NT/Intel world) for hosting a Zope site? Any suggestions would be welcome - I've got pII 400Mhrz 128M ram with good HardDrives, is there anything else that i could do/have to improve performance? Thanks again! j

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