Closed me-kell closed 1 year ago
What is the meaning of the following (marked in red border) lines (see image below)? They repeat but sometimes there is no explanation.
Are they headings, directives or ...?
They are (ZConfig
) abstract types.
As you might know, Zope
uses the advanced configuration facility ZConfig
(you should find detailed documentation on the WEB).
Zope
's base configuration schema is Zope2.Startup:wsgischema.xml
. You find there the definition of zope.product.base
as abstracttype
and derived from it the sectiontype
product-config
. You use a sectiontype
's name
as section in the configuration file, e.g.
<product-config timelogging>
filebase $CLIENTHOME/requests
</product-config>
As you can see, wsgischema.xml
contains <import package="ZODB"/>
which includes ZODB:component.xml
. This defines the abstract types ZODB.storage
and ZODB.database
.
In the Zope configuration file, you will typically use filestorage
or zeoclient
as section types derived from ZODB.storage
and zodb_db
as section type derived from ZODB.database
.
@d-maurer Thanks a lot for the very valuable explanation.
I still have a question. What is the meaning of *
and +
after? Do they mean "0..n" and "1..n"? And what does two consecutive lines with zodb.storage*
mean?
zodb.storage*
zodb.storage*
zodb.database+
me-kell wrote at 2022-12-4 04:02 -0800:
@d-maurer Thanks a lot for the very valuable explanation.
I still have a question. What is the meaning of
*
and+
after? Do they mean "0..n" and "1..n"?
You would like to consult the ZConfig
documentation, especially
writing-schema.rst
.
For the section
element you find there:
...
name (basic-key)
The name of the section, as it must be given in a configuration instance, , or +. If the value is or this attribute is omitted, any name not already specified as a key may be used. If the value is or +, the attribute attribute must be specified. If the value is , any name is allowed, or the name may be omitted. If the value is +, any name is allowed, but some name must be provided.
And what does two consecutive lines with
zodb.storage*
mean? Each stand for an arbitrary instance of azodb.storage
section. The*
suffix was used to indicate that you can name the section (with a name not yet used) or omit it.
Something similar applies to zodb.database+
: it indicates an instance of
a zodb.database
section; the suffix +
indicates that you must
explicitly name the section (with a name not already used).
In short: the +
and *
occurences in the example indicate how the
corresponding sections can be named.
@d-maurer Thank you very much indeed!
Looks like the question is answered.
Please provide some information about the entries in the documentation Configuring and Running Zope and specially the Zope configuration reference.
What is the meaning of the following (marked in red border) lines (see image below)? They repeat but sometimes there is no explanation.
Are they headings, directives or ...?
Are there somewhere documented? Is there some documentation how to configure
zope.conf
?I've read and re-read Configuring and Running Zope and specially the Zope configuration reference but find not really usefull to understand how to configure
zope.conf