Re: [Fwd: Re: [Zope-dev] Referencial Integrity in ZCatalogs]
En/na Leonardo Rochael Almeida ha escrit: Forgot to Cc: zope-dev -Mensagem encaminhada- From: Leonardo Rochael Almeida <[EMAIL PROTECTED]> To: Santi Camps <[EMAIL PROTECTED]> Subject: Re: [Zope-dev] Referencial Integrity in ZCatalogs Date: Mon, 02 Aug 2004 17:05:53 -0300 I would suggest you take a look at mxmRelations, however Zope.org workflow is keeping it out of reach, and I couldn't find it on MaxM's own site. The URL for it would be: http://www.zope.org/Members/maxm/products/mxmRelations Yes, I've seen this solution. It's another way to make things. But I'm not sure that it can implement a foreign key "on delete restricted", for instance. I see there are a lot of ways to solve this problem, so I will implement my proposal as a separate Product. I will try to implement a IntegrityZCatalog, adding primary and foreign key capabilities. It will be easier to use for me, and also for all new zope coders comming from relational databases. If we can say "Catalogs are our Tables. Use them as you have been using Tables until now and you will be right", I think we can make they learning much short. Regards Santi Camps ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Syslog logger broken?
On Sun, Aug 01, 2004 at 06:20:19AM +0200, Andreas Jung wrote: > > > --On Samstag, 31. Juli 2004 23:37 Uhr -0400 Paul Winkler > <[EMAIL PROTECTED]> wrote: > > >Has anybody had success with the syslog logger in Zope 2.7.0 or later? > >AFAICT the example in zope.conf.in is borken. > >See http://collector.zope.org/Zope/1425 > > > >Andreas assigned it to me, but I really have no clue > >how to fix it. > > > > > > hm...according to your report only the entries in the example are > broken...maybe I have to > re-read again.. Yes, please do :-) >From the bug report: """ The following is what I guess to be correct based on zLOG/component.xml, and it raises no errors, but I don't see any output either (maybe it's a problem with my /etc/syslog.conf): level all address localhost:514 """ -- Paul Winkler http://www.slinkp.com ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
[Zope-dev] Re: Referencial Integrity in ZCatalogs
You should be able to access it now anonymously. -Casey On Mon, 02 Aug 2004 17:07:30 -0300 Leonardo Rochael Almeida <[EMAIL PROTECTED]> wrote: > Forgot to Cc: zope-dev > > -Mensagem encaminhada- > From: Leonardo Rochael Almeida <[EMAIL PROTECTED]> > To: Santi Camps <[EMAIL PROTECTED]> > Subject: Re: [Zope-dev] Referencial Integrity in ZCatalogs > Date: Mon, 02 Aug 2004 17:05:53 -0300 > > I would suggest you take a look at mxmRelations, however Zope.org > workflow is keeping it out of reach, and I couldn't find it on MaxM's > own site. > > The URL for it would be: > > http://www.zope.org/Members/maxm/products/mxmRelations > > but right now it requires a login. > > If any kind soul from the Zope web team could release it, or if MaxM > could post it somewhere else, that would be very nice. > > Cheers, Leo > > ___ > Zope-Dev maillist - [EMAIL PROTECTED] > http://mail.zope.org/mailman/listinfo/zope-dev > ** No cross posts or HTML encoding! ** > (Related lists - > http://mail.zope.org/mailman/listinfo/zope-announce > http://mail.zope.org/mailman/listinfo/zope ) > ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Zope 2.7.2, restrictedTraverse or hasattr
Kai Hoppert wrote at 2004-8-2 14:04 +0200:
>i actually have a Problem with restrictedTraverse and hasattr.
>
>Object1
> Object2
> Object3
>
>
>I want to test if there exists a Object in Object3 wich has the same id and meta type
>how Object2 (id=myobject).
>so i ask
>
>Object3.restrictedTraverse('myobject',None) or
>
>hasattr(Object3,'myobject')
>
>i every time get's true back.
You can write a Script(Python) "hasattr_unacquired"
with parameters "obj, attr" and body
return hasattr(obj.aq_inner.aq_explicit, attr)
Note that a solution without the "aq_inner" will often work
but is not reliable...
--
Dieter
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[Fwd: Re: [Zope-dev] Referencial Integrity in ZCatalogs]
Forgot to Cc: zope-dev -Mensagem encaminhada- From: Leonardo Rochael Almeida <[EMAIL PROTECTED]> To: Santi Camps <[EMAIL PROTECTED]> Subject: Re: [Zope-dev] Referencial Integrity in ZCatalogs Date: Mon, 02 Aug 2004 17:05:53 -0300 I would suggest you take a look at mxmRelations, however Zope.org workflow is keeping it out of reach, and I couldn't find it on MaxM's own site. The URL for it would be: http://www.zope.org/Members/maxm/products/mxmRelations but right now it requires a login. If any kind soul from the Zope web team could release it, or if MaxM could post it somewhere else, that would be very nice. Cheers, Leo ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
[Zope-dev] Re: Zope 2.7.2, restrictedTraverse or hasattr
Ok found a solution in using aq_explicit Greetings Kai Hoppert ___ tomcom Gesellschaft für Informationstechnologie mbH Heuriedweg 14 | D-88131 Lindau Fon +49 (0)8382 975844 | Fax +49 (0)8382 975855 [EMAIL PROTECTED] | http://www.tomcom.de This document should only be read by those persons to whom it is addressed and is not intended to be relied upon by any person without subsequent written confirmation of its contents. tomcom disclaims all responsibility and accepts no liability for the consequences of any person acting, or refraining from acting on the contents of this document. Any unauthorised form of dissemination, copying, disclosure, modification, distribution and/or publication of this message is strictly prohibited. For information about tomcom please contact us on +49.8382.975844 or visit our web site at www.tomcom.de ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
[Zope-dev] Zope 2.7.2, restrictedTraverse or hasattr
Hi all,
i actually have a Problem with restrictedTraverse and hasattr.
Object1
Object2
Object3
I want to test if there exists a Object in Object3 wich has the same id and meta type
how Object2 (id=myobject).
so i ask
Object3.restrictedTraverse('myobject',None) or
hasattr(Object3,'myobject')
i every time get's true back. I know that he jump's to Object2. i testet this with
absolute_url, but this makes no sense i think. Either i never noticed that this both
funktions works in this way or it is a bug. If it is no bug has anybody a solution for
my problem?
Greetings
Kai Hoppert
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Heuriedweg 14 | D-88131 Lindau
Fon +49 (0)8382 975844 | Fax +49 (0)8382 975855
[EMAIL PROTECTED] | http://www.tomcom.de
This document should only be read by those persons to whom it is addressed and is not
intended to be relied upon by any person without subsequent written confirmation of
its contents. tomcom disclaims all responsibility and accepts no liability for the
consequences of any person acting, or refraining from acting on the contents of this
document. Any unauthorised form of dissemination, copying, disclosure, modification,
distribution and/or publication of this message is strictly prohibited. For
information about tomcom please contact us on +49.8382.975844 or visit our web site at
www.tomcom.de
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Re: [Zope-dev] Referencial Integrity in ZCatalogs
En/na Russ Ferriday ha escrit: Take a look at archetypes on Plone.org, and download a version from sf.net. Look in particular at the ReferenceEngine, based on the catalog, and note that there have been implementation changes, and there's a new beta version. Ben Saller and Kapil Thangavelu were part of the team responsible for Archetypes. --r. Um, this seems something more what I'm looking for. I can see that ReferenceEngine and Referenceable implements some referential at object level. I was thinking about to do it at catalog level, maintaining a paralelism with a referential model, where catalog = table. But making an implementation like Archetypes one is another good option, of course. Unfortunately, I don't use CMF in my application. I use a structure of frames to work, and also a lot of javascript and DHTML, translatable javascript content, etc. Working this way is easy don't use CMF that accommodate to it. Thanks for the info Santi Camps ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Referencial Integrity in ZCatalogs
Santi Camps wrote: En/na Roché Compaan ha escrit: Have a look at Archetypes, it does what you want. http://sourceforge.net/projects/archetypes I think you are talking about SQLStorage of Archetypes. I was actually thinking of the implementation of References, which uses the ZCatalog in manner you described. Storing some attributes in a Relational Database and using foreign keys in it can solve the problem. But I have some inconveniences to use Archetypes: 1) I don't use CMF. My applications aren't content management applications, but business oriented applications. 2) I like to distribute my applications without needing BBDD installation. Just download and run. Having a relational database backend will need some extra installation You should be able to strip away CMF dependencies, but why bother. We develop business applications with Archetypes on top of CMF. -- Roché Compaan Upfront Systems http://www.upfrontsystems.co.za ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Referencial Integrity in ZCatalogs
En/na Roché Compaan ha escrit: Have a look at Archetypes, it does what you want. http://sourceforge.net/projects/archetypes I think you are talking about SQLStorage of Archetypes. Storing some attributes in a Relational Database and using foreign keys in it can solve the problem. But I have some inconveniences to use Archetypes: 1) I don't use CMF. My applications aren't content management applications, but business oriented applications. 2) I like to distribute my applications without needing BBDD installation. Just download and run. Having a relational database backend will need some extra installation In any case, use SQLStorage without CMF could be interesting. I don't know if it is possible. Do you know ? Thanks Santi Camps ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Referencial Integrity in ZCatalogs
Take a look at archetypes on Plone.org, and download a version from sf.net. Look in particular at the ReferenceEngine, based on the catalog, and note that there have been implementation changes, and there's a new beta version. Ben Saller and Kapil Thangavelu were part of the team responsible for Archetypes. --r. On 2 Aug 2004, at 12:46, Santi Camps wrote: Hi all, I've been developing database oriented applications for about 10 years, using zope with Relation DDBB for one year and a half, and just one year using Zope with ZODB in my applications. At this point, I can see a lot of advantatges of use ZODB with Zope, but there are some points where the relational model was more useful to me. In fact, the main problem in my applications are relationships. In a relational world, you can specify relations using foreign keys, and also say what action should be done on delete or on update (no action, set null, restrict, cascade, set default). This is very useful developing business oriented applications. Using ZODB some of these relations can be done using containment: If A contains B, this is the same of having a relation "1->N on delete cascade" Another case is to use a Relation Manager. I've implemented and object Relation that is deleted when some of the two related objects are (using manage_beforeDelete). This is the same that a relation "M -> N on delete cascade" The third case I've been implemented, and the one giving me more problems, is to have a property referencing another object (path or UID). If the referenced object is dropped, the referer has problems I work a lot with ZCatalogs, using one catalog for each meta_type of objects, so for me catalogs are the most similar thing to a "Table". I'm thinking that could be very useful to implement some basic referencial integrity in ZCatalogs. Just being able to define primary keys and some simple types of foreign keys we will have on Zope the best of two worlds. Seeing code of ZCatalog product it seems not to be very difficult to implement, adding some validations on catalog_object and uncatalog_object methods. Of course, all these should be optional. I no Primary Keys neither Foreign Keys are defined, catalogs should work exactly like until now. What do you think about this ? If nobody convince me that this is a stupid work, I will try to implement it. In this case, what's the better way to provide the code ? A patch for ZCatalog ? Or a new Product IntegrityZCatalog inheriting from ZCatalog ? Thanks Santi Camps ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope ) — Russ Ferriday Solution Workshops for Plone (+44) (0) 7789 338868 http://www.solutionworkshops.com ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
Re: [Zope-dev] Referencial Integrity in ZCatalogs
Have a look at Archetypes, it does what you want. http://sourceforge.net/projects/archetypes -- Roché Compaan Upfront Systems http://www.upfrontsystems.co.za Santi Camps wrote: Hi all, I've been developing database oriented applications for about 10 years, using zope with Relation DDBB for one year and a half, and just one year using Zope with ZODB in my applications. At this point, I can see a lot of advantatges of use ZODB with Zope, but there are some points where the relational model was more useful to me. In fact, the main problem in my applications are relationships. In a relational world, you can specify relations using foreign keys, and also say what action should be done on delete or on update (no action, set null, restrict, cascade, set default). This is very useful developing business oriented applications. Using ZODB some of these relations can be done using containment: If A contains B, this is the same of having a relation "1->N on delete cascade" Another case is to use a Relation Manager. I've implemented and object Relation that is deleted when some of the two related objects are (using manage_beforeDelete). This is the same that a relation "M -> N on delete cascade" The third case I've been implemented, and the one giving me more problems, is to have a property referencing another object (path or UID). If the referenced object is dropped, the referer has problems I work a lot with ZCatalogs, using one catalog for each meta_type of objects, so for me catalogs are the most similar thing to a "Table". I'm thinking that could be very useful to implement some basic referencial integrity in ZCatalogs. Just being able to define primary keys and some simple types of foreign keys we will have on Zope the best of two worlds. Seeing code of ZCatalog product it seems not to be very difficult to implement, adding some validations on catalog_object and uncatalog_object methods. Of course, all these should be optional. I no Primary Keys neither Foreign Keys are defined, catalogs should work exactly like until now. What do you think about this ? If nobody convince me that this is a stupid work, I will try to implement it. In this case, what's the better way to provide the code ? A patch for ZCatalog ? Or a new Product IntegrityZCatalog inheriting from ZCatalog ? Thanks Santi Camps ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope ) ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
[Zope-dev] Referencial Integrity in ZCatalogs
Hi all, I've been developing database oriented applications for about 10 years, using zope with Relation DDBB for one year and a half, and just one year using Zope with ZODB in my applications. At this point, I can see a lot of advantatges of use ZODB with Zope, but there are some points where the relational model was more useful to me. In fact, the main problem in my applications are relationships. In a relational world, you can specify relations using foreign keys, and also say what action should be done on delete or on update (no action, set null, restrict, cascade, set default). This is very useful developing business oriented applications. Using ZODB some of these relations can be done using containment: If A contains B, this is the same of having a relation "1->N on delete cascade" Another case is to use a Relation Manager. I've implemented and object Relation that is deleted when some of the two related objects are (using manage_beforeDelete). This is the same that a relation "M -> N on delete cascade" The third case I've been implemented, and the one giving me more problems, is to have a property referencing another object (path or UID). If the referenced object is dropped, the referer has problems I work a lot with ZCatalogs, using one catalog for each meta_type of objects, so for me catalogs are the most similar thing to a "Table". I'm thinking that could be very useful to implement some basic referencial integrity in ZCatalogs. Just being able to define primary keys and some simple types of foreign keys we will have on Zope the best of two worlds. Seeing code of ZCatalog product it seems not to be very difficult to implement, adding some validations on catalog_object and uncatalog_object methods. Of course, all these should be optional. I no Primary Keys neither Foreign Keys are defined, catalogs should work exactly like until now. What do you think about this ? If nobody convince me that this is a stupid work, I will try to implement it. In this case, what's the better way to provide the code ? A patch for ZCatalog ? Or a new Product IntegrityZCatalog inheriting from ZCatalog ? Thanks Santi Camps ___ Zope-Dev maillist - [EMAIL PROTECTED] http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
