Re: [acceleo-dev] [ZOPE] UML components modeling

[JeanMichel FRANCOIS <jeanmichel.francois@xxxxxxxxxxxxxxxxx>]

Hi acceleo-dev,

  firstly, thx to obeo, Cédric, Rahif and Samir to start this project. I will 
first answer the question from Cédric and next try to give you a quick start 
to install zope3

[UML]

  At first look, the second diagram seems to be the best. The first one is 
quite wrong as you have said Cédric. In the last one you try to make an 
association but there is no "association" between zope components.

Zope decide if a component is in relation with an other only with Interfaces.

I don't know if component in UML could be the same as component in Zope3. I 
hope Samir an Rahif will explain us that.

Now, i will try to help Rahif for the modeling "with python". I think i would 
have sth like this:

interfaces.py
  IDiskStoreContent (schema)
  IDiskStoreDAO (methods to access to data)
  IDiskContent
  IDiskDAO
  IOrderContent
  IOrderDAO
  IDiskCatalog : diskfinder , badfinder, ...
  ...

content.py
  DiskStore implements IDiskStoreContent and IContainer in zopish world
  Disk implements IDiskContent
  Order implements IOrderContent

I don't have my book on zope3, but next we have to add zope's catalog 
indexes, 
and use it to find disk in a disk container.
We also need an Order Container interface and content type to store Order.

I let you take a look at zope.schema  
http://wiki.zope.org/zope3/WhatAreSchemas
This is used to create data content object. Schema do not create 
accessors/mutators to the content object so we need to create data access 
object. But it seems we can use the Interface to validate fields.

Note: A good project on Zope2 do this automaticly, but is quite complicated: 
Archetypes.


[Zope3 quickstart and install]
  For those who want to test zope3.4, just follow this:
- Install Python 2.4.4 from source in a prefix. (i give you a setup.sh to 
speed this up)
- wget http://peak.telecommunity.com/dist/ez_setup.py (done by the script)
- /prefix/bin/python ez_setup.py (done by the script)
- /prefix/bin/easy_install zopeproject
- /prefix/bin/zopeproject MyProject (and answer questions)
- /path/to/MyProject/bin/MyProject-ctl start 

Next open a browser to localhost:8080, you get it ;)

Comes to :
http://pypi.python.org/pypi/zopeproject
http://wiki.zope.org/zope3/Zope3Wiki

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