Re: [Zope-DB] external ZODB from Zope interface

[gyro funch]

Thank you all for the very helpful suggestions! I will try several of them and see what works best for my application.-g
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Re: [Zope-DB] external ZODB from Zope interface

[Dieter Maurer]

gyro funch wrote at 2006-2-2 04:34 -0800:
>I am a Zope newbie with some Python experience. We have a large amount of 
>scientific data that we are planning to load into several ZODBs.
>>From the Zope interface, how can I access these 'external'
>databases?

To access additional storages, you use
"Products.ZODBMountPoint.MountedObject.MountedObject" instances.

Mounting is similar to mounting under *nix.


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Dieter
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AW: [Zope-DB] external ZODB from Zope interface

[Frey, Peter]

Hi,
 
depending on what your goals are, maybe the following approach we use at
our site may help:
it is possible to mount "external" ZODB storages from a ZEO server into
the main storage
 
here an excerpt from our Zope configuration:

 
   mount-point /
   cache-size $ZODB_CACHE_SIZE_MAIN  
   pool-size $ZODB_POOLSIZE
   
 server $ZEOSERVER_MAIN
 storage main
 name zeostorage
 cache-size 1
   
 
 

# 
# mounted ZEO client storages:
# provided by local or remote ZEO server
#
 
 
   mount-point $MOUNTPOINT/Data/Normen:/Normen
   cache-size $ZODB_CACHE_SIZE_NORMEN  
   pool-size $ZODB_POOLSIZE
   
 server $ZEOSERVER_NORMEN
 storage normen
 cache-size 2
   
 
 
# and a couple of other storages follow here
 
 
the variable MOUNTPOINT (defined ahead) specifies a ZODB Path under that
the storage is mounted
the content of the storage is then accessible through ZODB paths
directly from the main storage
 
note that it may be also possible to use local file storages (Data.fs
from local folders)
but as we have a not too small multiuser environment with several
servers we have no experience with that 
so you may have to experiment on your own
 
Peter
 




Von: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Im
Auftrag von gyro funch
Gesendet: Donnerstag, 2. Februar 2006 16:25
An: Seth Gottlieb
Cc: zope-db@zope.org
Betreff: Re: [Zope-DB] external ZODB from Zope interface


Thanks for the very useful reference.
However, I don't see anything in there about accessing a ZODB. I may
have missed something, but I don't see a suitable ZODB adapter that I
can add in the Zope interface (similar to what is apparently possible
for Gadfly, MySQL,  PostgreSQL, and other DBs).

Any other ideas about how to access 'external' ZODBs and make them part
of the Zope project?

Thanks.

-g

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Re: [Zope-DB] external ZODB from Zope interface

[Charlie Clark]

On Thu, 02 Feb 2006 16:25:09 +0100, gyro funch <[EMAIL PROTECTED]> wrote:


Thanks for the very useful reference.
However, I don't see anything in there about accessing a ZODB. I may  
have missed something, but I don't see a suitable
ZODB adapter that I can add in the Zope interface (similar to what is  
apparently possible for Gadfly, MySQL,

PostgreSQL, and other DBs).
Any other ideas about how to access 'external' ZODBs and make them part  
of the Zope project?


Interesting question. I don't think is a common request. You might want to  
look at how to use standalone ZODB's in Python, although it sounds as if  
you're already competent with that. It may indeed be that you do need an  
ExternalMethod for what you want to do - shouldn't be much trouble, I  
would think. Why do you need several databases? Is it something to do with  
the size of your data?


Other than that I'm sure the Timbot will notice the post!

Charlie
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Re: [Zope-DB] external ZODB from Zope interface

[Seth Gottlieb]

Sorry,

I misread your question.  One thing that you could do is go to the Zope 
instance with the database that you want to export, go to the directory 
that you want to export and then use the Zope export utility.  This 
assumes that your data is sitting in a folder within the database. 


Try this:

http://www.faqs.org/docs/ZopeBook/BasicObject.html

--Seth

gyro funch wrote:


Thanks for the very useful reference.
However, I don't see anything in there about accessing a ZODB. I may 
have missed something, but I don't see a suitable ZODB adapter that I 
can add in the Zope interface (similar to what is apparently possible 
for Gadfly, MySQL,  PostgreSQL, and other DBs).


Any other ideas about how to access 'external' ZODBs and make them 
part of the Zope project?


Thanks.

-g

*/Seth Gottlieb <[EMAIL PROTECTED]>/* wrote:

This is a good write up of how to do it.


http://www.zope.org/Documentation/Books/ZopeBook/2_6Edition/RelationalDatabases.stx

--Seth

gyro funch wrote:

> Hi,
> I am a Zope newbie with some Python experience. We have a large
amount
> of scientific data that we are planning to load into several ZODBs.
& gt; From the Zope interface, how can I access these 'external'
> databases? Are databases other than Data.fs accessible? Must
this be
> done using an external method of some sort?
>
> Thanks for your help.
>
> -g
>
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> a
>

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Boston, MA 02114
e: [EMAIL PROTECTED]
v: 617.227.1855 ext. 107
f: 617.227.1755
m: 617.852.2956
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Seth Gottlieb
Optaros, Inc.
60 Canal Street
Boston, MA 02114
e: [EMAIL PROTECTED]
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m: 617.852.2956 
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Re: [Zope-DB] external ZODB from Zope interface

[gyro funch]

Thanks for the very useful reference.However, I don't see anything in there about accessing a ZODB. I may have missed something, but I don't see a suitable ZODB adapter that I can add in the Zope interface (similar to what is apparently possible for Gadfly, MySQL,  PostgreSQL, and other DBs).Any other ideas about how to access 'external' ZODBs and make them part of the Zope project?Thanks.-gSeth Gottlieb <[EMAIL PROTECTED]> wrote: This is a good write up of how to do it.http://www.zope.org/Documentation/Books/ZopeBook/2_6Edition/RelationalDatabases.stx--Sethgyro funch wrote:>  Hi,> I am a Zope newbie with some Python experience. We have a large amount > of scientific data that we are planning to load into several ZODBs.&
 gt; From
 the Zope interface, how can I access these 'external'> databases? Are databases other than Data.fs accessible? Must this be > done using an external method of some sort?>> Thanks for your help.>> -g>>___>Zope-DB mailing list>Zope-DB@zope.org>http://mail.zope.org/mailman/listinfo/zope-db>  >-- Seth GottliebOptaros, Inc.60 Canal StreetBoston, MA 02114e: [EMAIL PROTECTED]v: 617.227.1855 ext. 107f: 617.227.1755m: 617.852.2956 b: http://contenthere.blogspot.com
	
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Re: [Zope-DB] external ZODB from Zope interface

[Seth Gottlieb]

This is a good write up of how to do it.

http://www.zope.org/Documentation/Books/ZopeBook/2_6Edition/RelationalDatabases.stx

--Seth

gyro funch wrote:


 Hi,
I am a Zope newbie with some Python experience. We have a large amount 
of scientific data that we are planning to load into several ZODBs.

From the Zope interface, how can I access these 'external'
databases? Are databases other than Data.fs accessible? Must this be 
done using an external method of some sort?


Thanks for your help.

-g



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Seth Gottlieb
Optaros, Inc.
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Boston, MA 02114
e: [EMAIL PROTECTED]
v: 617.227.1855 ext. 107
f: 617.227.1755
m: 617.852.2956 
b: http://contenthere.blogspot.com


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[Zope-DB] external ZODB from Zope interface

[gyro funch]

 Hi,I am a Zope newbie with some Python experience. We have a large amount of scientific data that we are planning to load into several ZODBs.From the Zope interface, how can I access these 'external'databases? Are databases other than Data.fs accessible? Must this be done using an external method of some sort?Thanks for your help.-g
		  
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