[Zope] how to do this?
Hello everyone and thaks for your help: I have this things: Zdatabase Conection zsql method Controller page template(form) Controller python script(call zsql method) controller validator page template it´s a form, it stores email and comments in database and it works. I need put all this inside a product i did, and when I have to push a button from a page template (of the product), show me the form, i fill in it, and it stores data in db. Can i do it?Can you help me please?Thanks ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] How to do...
Dieter Maurer escribió: Garito wrote at 2006-10-20 14:20 +0200: Dieter Maurer escribió: You remember I have warned you: __getattr__ is difficult and error prone! Even me, I have spend hours to understand why I get occasional __getattr__ infinite loops... And I know, in principle, all the potential caveats... Can you point me to some example/product to try to avoid this kind of errors? It is quite difficult to learn all kinds of problems from an example. I think I already have publicly described my __getattr__ problems. Thus, you can search the mailing list archive... An example product where __getattr__ is used is BTreeFolder2. Thank you! I'll try and I will be back with new questions!! -- Mis Cosas http://blogs.sistes.net/Garito ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] How to do...
Garito wrote: Sure, but I don't need only localization, I need to preprocess the properties before read them I'm afraid your entire approach is likely to end you in a world of pain... Chris -- Simplistix - Content Management, Zope Python Consulting - http://www.simplistix.co.uk ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] How to do...
Dieter Maurer escribió: Garito wrote at 2006-10-18 20:27 +0200: How can I create an accessor to read (not to write) and preprocess all properties? If you are only willing to write a single method that should do for all properties, then you will need to use __getattr__. You remember I have warned you: __getattr__ is difficult and error prone! Even me, I have spend hours to understand why I get occasional __getattr__ infinite loops... And I know, in principle, all the potential caveats... Can you point me to some example/product to try to avoid this kind of errors? Thanks a lot! -- Mis Cosas http://blogs.sistes.net/Garito ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] How to do...
--On 20. Oktober 2006 14:20:51 +0200 Garito [EMAIL PROTECTED] wrote: And I know, in principle, all the potential caveats... Can you point me to some example/product to try to avoid this kind of errors? You got already multiple useful advices how to proceed. Take one! Follow the road that almost all reasonable Zope developers would use: write your own accessor methods or use ComputedAttribute or work with Python properties. But you should forget your (weird) idea. Get it out of your head. Now! -aj pgpMBeIHKADVd.pgp Description: PGP signature ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] How to do...
Andreas Jung escribió: --On 20. Oktober 2006 14:20:51 +0200 Garito [EMAIL PROTECTED] wrote: And I know, in principle, all the potential caveats... Can you point me to some example/product to try to avoid this kind of errors? You got already multiple useful advices how to proceed. Take one! Follow the road that almost all reasonable Zope developers would use: write your own accessor methods or use ComputedAttribute or work with Python properties. But you should forget your (weird) idea. Get it out of your head. Now! -aj Sorry but you don't know the whole project If there are a test to do I'll do it because I need to evaluate if Zope is my solution or not There are things on Zope that I like a lot but there are things I don't If Zope is not my solution I need to found the right solution No weird anything: Zope could do the work or not, easy, don't you thing so? Perhaps Zope 3? I don't know (I'm asking to you) But, please, don't tell me to forget my idea is like if I tell you what I think about the things I don't like about Zope and the I says: Zopers, forget Zope because I don't like ZClass or DTML Sorry again (for my expressions fault) -- Mis Cosas http://blogs.sistes.net/Garito ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] How to do...
--On 20. Oktober 2006 14:41:58 +0200 Garito [EMAIL PROTECTED] wrote: -aj Sorry but you don't know the whole project No project can be as scary as your requirements of your original posting :-) If there are a test to do I'll do it because I need to evaluate if Zope is my solution or not Zope and Python are likely a prefect choice to your (unknown) problem but you need to understand some basic principles of both. But, please, don't tell me to forget my idea is like if I tell you what I think about the things I don't like about Zope and the I says: Zopers, forget Zope because I don't like ZClass or DTML So why don't you follow the standard way? Dieter pointed you using __getattr__() but I doubt that it is the right choice for you because you with your small Python background you will definitely run into problems that will be hard for you to be resolved on your own. So take the common road. This is less painful. -aj pgpPW2uTs7mgF.pgp Description: PGP signature ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] How to do...
Andreas Jung escribió: --On 20. Oktober 2006 14:41:58 +0200 Garito [EMAIL PROTECTED] wrote: -aj Sorry but you don't know the whole project No project can be as scary as your requirements of your original posting :-) If there are a test to do I'll do it because I need to evaluate if Zope is my solution or not Zope and Python are likely a prefect choice to your (unknown) problem but you need to understand some basic principles of both. But, please, don't tell me to forget my idea is like if I tell you what I think about the things I don't like about Zope and the I says: Zopers, forget Zope because I don't like ZClass or DTML So why don't you follow the standard way? Dieter pointed you using __getattr__() but I doubt that it is the right choice for you because you with your small Python background you will definitely run into problems that will be hard for you to be resolved on your own. So take the common road. This is less painful. -aj I agree with you: my Python background is uncompleted but I'll learn Python/Zope as deep as I need to create the product I'm looking for There are some Zope standard ways to do the job but my experience tells me to avoid some programmers responsability because programmers make mistakes (I know it because I make mistakes ;-) ) The requieriment of my product is to be simple to use even if the morphology of this product is a little hard or weird The simplest way is to implement the general accessor as I thing but I don't know if Zope do it possible If not I can find another way to do the same but the accessor way seems the *simplest* one I try to find the mother cell to describe *every* entity. Is that goal what is weird but, boys, weird problems wants weird solutions Perhaps new ways begins as weird projects If you thing __getattr__ will be the solutions perhaps I could try it but if you point me to avoid the recursive problems I could do the job Can you point me to a product or a paper to understand the __getattr__ problems? Thanks! -- Mis Cosas http://blogs.sistes.net/Garito ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] How to do...
--On 20. Oktober 2006 15:08:26 +0200 Garito [EMAIL PROTECTED] wrote: If you thing __getattr__ will be the solutions perhaps I could try it but if you point me to avoid the recursive problems I could do the job Can you point me to a product or a paper to understand the __getattr__ problems? Dieter told you already that you will into infinite recursions when accessing attrs of the same instance within __getattr__(). You should be able to find about related threads by using Google. I hope you can extract the magic Google words from this thread. -aj pgpfJBYrkyLwT.pgp Description: PGP signature ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] How to do...
Andreas Jung escribió: --On 20. Oktober 2006 15:08:26 +0200 Garito [EMAIL PROTECTED] wrote: If you thing __getattr__ will be the solutions perhaps I could try it but if you point me to avoid the recursive problems I could do the job Can you point me to a product or a paper to understand the __getattr__ problems? Dieter told you already that you will into infinite recursions when accessing attrs of the same instance within __getattr__(). You should be able to find about related threads by using Google. I hope you can extract the magic Google words from this thread. -aj A, ok! Sure I'll search at google and I'll be back with more explicit questions Thanks a lot! -- Mis Cosas http://blogs.sistes.net/Garito ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] How to do...
Garito wrote at 2006-10-20 14:20 +0200: Dieter Maurer escribió: You remember I have warned you: __getattr__ is difficult and error prone! Even me, I have spend hours to understand why I get occasional __getattr__ infinite loops... And I know, in principle, all the potential caveats... Can you point me to some example/product to try to avoid this kind of errors? It is quite difficult to learn all kinds of problems from an example. I think I already have publicly described my __getattr__ problems. Thus, you can search the mailing list archive... An example product where __getattr__ is used is BTreeFolder2. -- Dieter ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] How to do...
Garito wrote: object.Property2 and retrieve the data with the current locale For spanish locale I would like to retrieve 18-10-2006 Rather than torturing yourself with all this weirdness, maybe you should look at using Zope 3's locale support in your app, whether it's zope 2 or zope 3... cheers, Chris -- Simplistix - Content Management, Zope Python Consulting - http://www.simplistix.co.uk ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] How to do...
Chris Withers escribió: Garito wrote: object.Property2 and retrieve the data with the current locale For spanish locale I would like to retrieve 18-10-2006 Rather than torturing yourself with all this weirdness, maybe you should look at using Zope 3's locale support in your app, whether it's zope 2 or zope 3... cheers, Chris Sure, but I don't need only localization, I need to preprocess the properties before read them Is this possible? -- Mis Cosas http://blogs.sistes.net/Garito ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] How to do...
- Original Message - From: Garito [EMAIL PROTECTED] To: Chris Withers [EMAIL PROTECTED] Cc: Lista Zope Internacional zope@zope.org Sent: Thursday, October 19, 2006 8:46 AM Subject: Re: [Zope] How to do... Chris Withers escribió: Garito wrote: object.Property2 and retrieve the data with the current locale For spanish locale I would like to retrieve 18-10-2006 Rather than torturing yourself with all this weirdness, maybe you should look at using Zope 3's locale support in your app, whether it's zope 2 or zope 3... cheers, Chris Sure, but I don't need only localization, I need to preprocess the properties before read them Is this possible? I am not sure what you mean when you say you want to preprocess the properties before reading them. There are 2 possible cases (that I can think of) in which preprocessing could occur: 1) in response to a user request, you access the stored data, process the data, then display the data. However, you are still 'reading' the data before you can process it. 2) you need to process stored data as a result of some external or timed event (ie. not in response to a user request). In this case you use cron/wget/stepper/etc. to activate a routine which accesses the stored data, processes the data, saves the data (either overwriting the old data or creating a new data element). However, you are still 'reading' the data before you can process it. Before you can process data you need to 'read' (access) the data. If you mean something different when you say 'read' let us know, it may eliminate some confusion! Jonathan ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] How to do...
Garito wrote at 2006-10-18 20:27 +0200: How can I create an accessor to read (not to write) and preprocess all properties? If you are only willing to write a single method that should do for all properties, then you will need to use __getattr__. You remember I have warned you: __getattr__ is difficult and error prone! Even me, I have spend hours to understand why I get occasional __getattr__ infinite loops... And I know, in principle, all the potential caveats... -- Dieter ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
[Zope] How to do...
Hi all! How can I control the way an attribute of a product is readed? __getattr__? __getattribute__? I try the __getattribute__ way but it modifies the property pages Example: I create an object instance of the product and like: Property1 = 'Some text' Property2 = 2006-10-18 I would like to call Property2 like object.Property2 and retrieve the data with the current locale For spanish locale I would like to retrieve 18-10-2006 But if I read the property pages of this object I would like to conserve the given data Is this possible? Thanks! -- Mis Cosas http://blogs.sistes.net/Garito ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] How to do...
--On 18. Oktober 2006 16:15:37 +0200 Garito [EMAIL PROTECTED] wrote: Hi all! How can I control the way an attribute of a product is readed? __getattr__? __getattribute__? I try the __getattribute__ way but it modifies the property pages Example: I create an object instance of the product and like: Property1 = 'Some text' Property2 = 2006-10-18 I would like to call Property2 like object.Property2 and retrieve the data with the current locale Don't do that. Make a clear separation between the storage layer and any kind of presentation issues. If you need your internal data represented in a fancy way, write a dedicated accessor method and use this one inside your templates (or whatever) instead of accessing the data directly. -aj pgpT0b4D9f9Xi.pgp Description: PGP signature ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] How to do...
- Original Message - From: Garito [EMAIL PROTECTED] To: Lista Zope Internacional zope@zope.org Sent: Wednesday, October 18, 2006 10:15 AM Subject: [Zope] How to do... Hi all! How can I control the way an attribute of a product is readed? __getattr__? __getattribute__? I try the __getattribute__ way but it modifies the property pages Example: I create an object instance of the product and like: Property1 = 'Some text' Property2 = 2006-10-18 I would like to call Property2 like object.Property2 and retrieve the data with the current locale For spanish locale I would like to retrieve 18-10-2006 But if I read the property pages of this object I would like to conserve the given data Is this possible? Reading/displaying stored data should not change the stored data! You should determine what internal data storage format you want and keep it consistent. When you retrieve data for presentation/display you can reformat the data prior to display (eg. for localization), but you should not overwrite the stored data with the new format (this will cause you serious difficulties as your data 'reading' routines will never know what format the data is stored in - unless you also store some formatting information, but in most cases this is a bad idea!) Jonathan ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] How to do...
Andreas Jung escribió: --On 18. Oktober 2006 16:15:37 +0200 Garito [EMAIL PROTECTED] wrote: Hi all! How can I control the way an attribute of a product is readed? __getattr__? __getattribute__? I try the __getattribute__ way but it modifies the property pages Example: I create an object instance of the product and like: Property1 = 'Some text' Property2 = 2006-10-18 I would like to call Property2 like object.Property2 and retrieve the data with the current locale Don't do that. Make a clear separation between the storage layer and any kind of presentation issues. If you need your internal data represented in a fancy way, write a dedicated accessor method and use this one inside your templates (or whatever) instead of accessing the data directly. -aj Then I can't create a property that stores a tal expression for example? I would like to write things like: object.property = 'here/anotherproperty' object.anotherproperty = 'Barcelona' and ask it like: print object.property - 'Barcelona' or tal:city tal:replace='here/property' / - 'Barcelona' Is this possible? Thanks!!! -- Mis Cosas http://blogs.sistes.net/Garito ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] How to do...
--On 18. Oktober 2006 18:53:05 +0200 Garito [EMAIL PROTECTED] wrote: Andreas Jung escribió: --On 18. Oktober 2006 16:15:37 +0200 Garito [EMAIL PROTECTED] wrote: Hi all! How can I control the way an attribute of a product is readed? __getattr__? __getattribute__? I try the __getattribute__ way but it modifies the property pages Example: I create an object instance of the product and like: Property1 = 'Some text' Property2 = 2006-10-18 I would like to call Property2 like object.Property2 and retrieve the data with the current locale Don't do that. Make a clear separation between the storage layer and any kind of presentation issues. If you need your internal data represented in a fancy way, write a dedicated accessor method and use this one inside your templates (or whatever) instead of accessing the data directly. -aj Then I can't create a property that stores a tal expression for example? I would like to write things like: object.property = 'here/anotherproperty' object.anotherproperty = 'Barcelona' and ask it like: print object.property - 'Barcelona' or tal:city tal:replace='here/property' / - 'Barcelona' This posting is totally weird. Sorry, but I have really no idea what you're trying to do. It makes absolutely no sense. -aj pgpuAUwWVj1Fl.pgp Description: PGP signature ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] How to do...
Andreas Jung escribió: --On 18. Oktober 2006 18:53:05 +0200 Garito [EMAIL PROTECTED] wrote: Andreas Jung escribió: --On 18. Oktober 2006 16:15:37 +0200 Garito [EMAIL PROTECTED] wrote: Hi all! How can I control the way an attribute of a product is readed? __getattr__? __getattribute__? I try the __getattribute__ way but it modifies the property pages Example: I create an object instance of the product and like: Property1 = 'Some text' Property2 = 2006-10-18 I would like to call Property2 like object.Property2 and retrieve the data with the current locale Don't do that. Make a clear separation between the storage layer and any kind of presentation issues. If you need your internal data represented in a fancy way, write a dedicated accessor method and use this one inside your templates (or whatever) instead of accessing the data directly. -aj Then I can't create a property that stores a tal expression for example? I would like to write things like: object.property = 'here/anotherproperty' object.anotherproperty = 'Barcelona' and ask it like: print object.property - 'Barcelona' or tal:city tal:replace='here/property' / - 'Barcelona' This posting is totally weird. Sorry, but I have really no idea what you're trying to do. It makes absolutely no sense. -aj I only try to create a model but I'm searching the best way to create it I try to create properties like this is (in the last example): object.property is like object.anotherproperty Is this possible? -- Mis Cosas http://blogs.sistes.net/Garito ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] How to do...
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 18 Oct 2006, at 12:53, Garito wrote: Then I can't create a property that stores a tal expression for example? I would like to write things like: object.property = 'here/anotherproperty' object.anotherproperty = 'Barcelona' and ask it like: print object.property - 'Barcelona' or tal:city tal:replace='here/property' / - 'Barcelona' Google for ComputedAttribute. jens -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.1 (Darwin) iD8DBQFFNmNuRAx5nvEhZLIRAkRcAJ4lfb9YMZGCgMnyhwokS9b9JocsEQCdEMh1 FSIjkr9Ijvr6LpR1vIPXrHI= =ugZY -END PGP SIGNATURE- ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] How to do...
--On 18. Oktober 2006 19:17:42 +0200 Garito [EMAIL PROTECTED] wrote: I only try to create a model but I'm searching the best way to create it I try to create properties like this is (in the last example): object.property is like object.anotherproperty You got already multiple advices. Write a method anotherproperty() and do whatever you like with in this method. You can call it from TALES as here/anotherproperty. TALES bascially deals with attributes and methods in the same way. -aj pgpQEhmY3CKov.pgp Description: PGP signature ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] How to do...
Andreas Jung escribió: --On 18. Oktober 2006 19:17:42 +0200 Garito [EMAIL PROTECTED] wrote: I only try to create a model but I'm searching the best way to create it I try to create properties like this is (in the last example): object.property is like object.anotherproperty You got already multiple advices. Write a method anotherproperty() and do whatever you like with in this method. You can call it from TALES as here/anotherproperty. TALES bascially deals with attributes and methods in the same way. -aj Sure! But I need to write a method for every like property but I would like (if is possible) a way to evaluate if a property is a TALES property automatically Perhaps the property could begin like tal:expression If a property begins with tal: I would like to pre-process automatically Is this possible? -- Mis Cosas http://blogs.sistes.net/Garito ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] How to do...
--On 18. Oktober 2006 19:41:07 +0200 Garito [EMAIL PROTECTED] wrote: You got already multiple advices. Write a method anotherproperty() and do whatever you like with in this method. You can call it from TALES as here/anotherproperty. TALES bascially deals with attributes and methods in the same way. -aj Sure! But I need to write a method for every like property but I would like (if is possible) a way to evaluate if a property is a TALES property automatically Do you *really*, *really*, *really* need this feature? You can of course implement your own __getattr__() methodbut every Python programmer would likely slap you left and right...these are the last comments on this issue.. it's still to weird in my opinion. -aj pgp2e2ObIyVAF.pgp Description: PGP signature ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] How to do...
Andreas Jung escribió: --On 18. Oktober 2006 19:41:07 +0200 Garito [EMAIL PROTECTED] wrote: You got already multiple advices. Write a method anotherproperty() and do whatever you like with in this method. You can call it from TALES as here/anotherproperty. TALES bascially deals with attributes and methods in the same way. -aj Sure! But I need to write a method for every like property but I would like (if is possible) a way to evaluate if a property is a TALES property automatically Do you *really*, *really*, *really* need this feature? You can of course implement your own __getattr__() methodbut every Python programmer would likely slap you left and right...these are the last comments on this issue.. it's still to weird in my opinion. -aj Yes I think about __getattr__() method but I don't have any idea about how to retrive the original property And another question about this is if implementing __getattr__ method the property manager works ok or not (for me works ok if property manager displays the tal expression instead of the process of the expression will __getattr_ be the method I'm looking for? Thanks Aj and sorry for my weird questions -- Mis Cosas http://blogs.sistes.net/Garito ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] How to do...
Garito wrote at 2006-10-18 16:15 +0200: ... How can I control the way an attribute of a product is readed? __getattr__? __getattribute__? A product is an extension mechanism for Zope. Usually, a product does not have attributes (you are interested in). But inside your product you may have defined classes instances of which you place into the Zope hierarchy (http://www.dieter.handshake.de/pyprojects/zope/book/chap3.html speaks about site building objects). The standard Python way to access their attributes (__getattr__ and __getattribute__) will work but has caveats: It is *very* easy to create infinite loops with it and their self with not be acquisition wrapped. The Zope specific safer way is to implement __bobo_traverse__. Both the publisher as well as [un]restrictedTraverse (which is internally used by TALES path expressions) use __bobo_traverse__ when defined. However, Python's getattr will not use it. -- Dieter ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] How to do...
Dieter Maurer escribió: Garito wrote at 2006-10-18 16:15 +0200: ... How can I control the way an attribute of a product is readed? __getattr__? __getattribute__? A product is an extension mechanism for Zope. Usually, a product does not have attributes (you are interested in). But inside your product you may have defined classes instances of which you place into the Zope hierarchy (http://www.dieter.handshake.de/pyprojects/zope/book/chap3.html speaks about site building objects). The standard Python way to access their attributes (__getattr__ and __getattribute__) will work but has caveats: It is *very* easy to create infinite loops with it and their self with not be acquisition wrapped. The Zope specific safer way is to implement __bobo_traverse__. Both the publisher as well as [un]restrictedTraverse (which is internally used by TALES path expressions) use __bobo_traverse__ when defined. However, Python's getattr will not use it. Hi, Dieter! How can I create an accessor to read (not to write) and preprocess all properties? Thanks! -- Mis Cosas http://blogs.sistes.net/Garito ___ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] How to do this trick..
Hi Jason,
I see a few people have had a stab at this, but I have a feeling I know
what you really meant ;-)
Jason C. Leach wrote:
I'm wondering how I can do this little trick (sp_info is a globaly devide
var, it's a dictionary obj):
option tal:repeat=group groups/existing/high
tal:content=group
tal:attributes=onmouseover string:doTooltip(event,
'${sp_info/${group}/common_name}')
onmouseout=hideTip()
/option
So based on my the value of 'group' from my repeat, I want to use the value
to look up another value in a different dictionary. It works if I do this:
(event, '${sp_info/whatever/common_name}') but does not like me using the
embedded ${group}.
try this:
tal:i repeat=group groups/existing/high
option tal:define=event sp_info/?group/common_name
tal:content=group
tal:attributes=onmouseover string:doTooltip(event,'$event')
onmouseout=hideTip()
/option
/tal:i
cheers,
Chris
--
Simplistix - Content Management, Zope Python Consulting
- http://www.simplistix.co.uk
___
Zope maillist - Zope@zope.org
http://mail.zope.org/mailman/listinfo/zope
** No cross posts or HTML encoding! **
(Related lists -
http://mail.zope.org/mailman/listinfo/zope-announce
http://mail.zope.org/mailman/listinfo/zope-dev )
[Zope] How to do this trick..
Hi,I'm wondering how I can do this little trick (sp_info is a globaly devide var, it's a dictionary obj): option tal:repeat=group groups/existing/high tal:content=group
tal:attributes=onmouseover string:doTooltip(event, '${sp_info/${group}/common_name}') > /option
So based on my the value of 'group' from my repeat, I want to use the value to look up another value in a different dictionary. It works if I do this: (event, '${sp_info/whatever/common_name}') but does not like me using the embedded ${group}.
Thanks,Jason.-- Jason C. Leach PGP Key: 0x62DDDF75 Keyserver: gpg.mit.edu
___
Zope maillist - Zope@zope.org
http://mail.zope.org/mailman/listinfo/zope
** No cross posts or HTML encoding! **
(Related lists -
http://mail.zope.org/mailman/listinfo/zope-announce
http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] How to do this trick..
tal:repeat repeat=group groups/existing/high
option tal:define=js_arg python:sp_info[group];
tal:content=group
tal:attributes=onmouseover string:doTooltip(event,
'${js_arg}/common_name}')
onmouseout=hideTip()
/option
/tal:repeat
The tal:repeat tags are to make sure the order of TAL operations
works properly with the tal:define being done *after* the tal:repeat.
Hope this helps.
Ross
___
Zope maillist - Zope@zope.org
http://mail.zope.org/mailman/listinfo/zope
** No cross posts or HTML encoding! **
(Related lists -
http://mail.zope.org/mailman/listinfo/zope-announce
http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] How to do this trick..
Jason C. Leach wrote:
I'm wondering how I can do this little trick (sp_info is a globaly
devide var, it's a dictionary obj):
option tal:repeat=group groups/existing/high
tal:content=group
tal:attributes=onmouseover string:doTooltip(event,
'${sp_info/${group}/common_name}')
onmouseout=hideTip()
/option
So based on my the value of 'group' from my repeat, I want to use the
value to look up another value in a different dictionary. It works if
I do this: (event, '${sp_info/whatever/common_name}') but does not
like me using the embedded ${group}.
The ${var} syntax is only for inserting a value in a string expression.
Path expressions only take known names. If you want to look up a value
based on a variable, you must use Python. Look at the first half of this:
http://plone.org/documentation/how-to/addContentProgrammatically
--jcc
--
Building Websites with Plone
http://plonebook.packtpub.com
___
Zope maillist - Zope@zope.org
http://mail.zope.org/mailman/listinfo/zope
** No cross posts or HTML encoding! **
(Related lists -
http://mail.zope.org/mailman/listinfo/zope-announce
http://mail.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] How exactly do I restart zope?
NYNewMedia writes: How exactly do I restart zope? Under Unix, "./stop; ./start" in the Zope installation directory. Under Windows: "Shutdown" from Zope's Control Panel (to stop Zope) "start" (in Zope's installation directory) to start Zope. There is a way to start Zope at NT service. I am not an expert for this. Look at the upcoming Zope book (http://www.zope.org/members/michel/ZB) (or something similar). Dieter ___ Zope maillist - [EMAIL PROTECTED] 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] How exactly do I restart zope?
How exactly do I restart zope? I have an eight month old zope box running on Linux 5.1 We had to manually restart the server. The question for us now is how exactly to restart zope? We tried to restart http, and tried some of the intructions on zope.org, but have not been able to get it to run, mainly because we are not zope experienced. Result: we are not able to run the web site or the content admin tool. Can anyone give exact instructions? Thanks, Wil __ Do You Yahoo!? Yahoo! Calendar - Get organized for the holidays! http://calendar.yahoo.com/ ___ Zope maillist - [EMAIL PROTECTED] 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 )
