[Zope] ZCatalog and custom Product
Hi,
I need to convert a ZClass cataloged in multiple ZCatalogs into a
Product. I know how to create a Product. But I have trouble
understanding how to create a proper ZCatalog and manage it in a Product.
When I change my ZClass instance, it reindexes itself in multiple
ZCatalogs. I have the following DTML method edit in my ZClass (stored
in ZODB) that takes care of this:
dtml-call manage_editCataloger('Catalog_A')
dtml-call reindex_object
dtml-call manage_editCataloger('Catalog_B')
dtml-call reindex_object
How should this be programmed in Products?
- Should I first create a ZCatalog instance in ZODB, and then bind this
instance to my Product? That would make my Product not self-contained.
- or should the Product rather create ZCatalog instance during its
initialization? That would mean that upon Zope restart, ZCatalog
instance would be removed and re-created and all Product instances would
have to be recataloged.
In my new Product (that is to replace my ZClass), I put this line:
from Products.ZCatalog.ZCatalog import ZCatalog
and I added ZCatalog to the list of subclassed classes:
class ArtBase(ZCatalog, ObjectManager, SimpleItem, PropertyManager,
JMZPTMacros):
but I have no idea what to do next. In this mailing list's archive,
Chris Withers wrote that ZCatalog should be an attribute of a product's
instance so that I can open the ZCatalog management interface by calling
my_prod_instance/catalog_name/manage. I understand that, but I have no
idea how to achieve it.
Should I add a line to my class __init__ ? Something like:
def __init__(self,id,title=''):
Contructor method to initialize the properties of our class
#Create and initilize the class attributes
self.id=id
self.title=title
self.catalog=manage_addZCatalog(id=catalog, title=title)
but the above looks fishy because I would have an isolated catalog for
each new instance of my class...
To support manage_editCataloger and reindex_object, do I need to import
both ZCatalog from Products.ZCatalog and CatalogAware from
Products.ZCatalog.CatalogAwareness ?
--
Milos Prudek
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Re: [Zope] ZCatalog and custom Product
Milos Prudek wrote: Hi, I need to convert a ZClass cataloged in multiple ZCatalogs into a Product. I know how to create a Product. But I have trouble understanding how to create a proper ZCatalog and manage it in a Product. To answer myself, simply follow Garito's advice of 10.6.2004 in mailing list archive. Now the only problem is multiple catalogs. I need to catalog my class into Catalog_A, Catalog_B and Catalog_C upon instantiation. class MyClass(CatalogPathAware): def __init__(): self.manage_editCataloger(Catalog_A) self.index_object() The above code catalogs the instance into Catalog_A. Okay, but self.manage_editCataloger(Catalog_A) self.index_object() self.manage_editCataloger(Catalog_B) self.index_object() self.manage_editCataloger(Catalog_C) self.index_object() ... the above code catalogs the instance into Catalog_C, but not into Catalog_A and not into Catalog_B. Does anyone know why Catalog_A and Catalog_B are ignored? -- Milos Prudek ___ 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] ZCatalog and custom Product
Milos Prudek wrote: The above code catalogs the instance into Catalog_A. Okay, but self.manage_editCataloger(Catalog_A) self.index_object() self.manage_editCataloger(Catalog_B) self.index_object() self.manage_editCataloger(Catalog_C) self.index_object() ... the above code catalogs the instance into Catalog_C, but not into Catalog_A and not into Catalog_B. Does anyone know why Catalog_A and Catalog_B are ignored? Using CatalogPathAware with multiple catalogs is asking for trouble, since it's onyl designed to support one catalog ;-) I'd suggest not using it in your case. Just write your own index_object method that does what you really want it to... 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 )
