Re: [Zope3-Users] PyWebOff
On Friday 03 March 2006 02:27, Shane Hathaway wrote: I've been assigned to present Zope in a local upcoming Python user group meeting. As part of the assignment, I'm supposed to solve the PyWebOff challenge using Zope: http://pyre.third-bit.com/pyweb/challenge.html I'd like to do this using Zope 3. However, I'm really struggling. I feel like I must be using Zope 3 in a really dumb way, because the code so far is highly repetitive, completely dependent on Zope, and more XML than Python. This is not going to go over well in the presentation. Can anyone tell me how to do this better with Zope 3? Maybe my Zope 2 experience is preventing me from seeing something obvious. I've attached the __init__.py and configure.zcml that I created in a package called challenge. The problem here is that this challenge does some very standard things. It does not require real programming. Thus you end up with more ZCML than you might think. In my experience with SchoolTool, I learned that I spend for more time developing Python (and developing doctests for that code) than writing ZCML. As you have probably seen from the recent discussions, Zope 3 does not scale down well. I think once the new AGX is done (which will support Zope 3), then this task will be a matter of developing a UML model. Sorry, but I do not have a better answer. Regards, Stephan -- Stephan Richter CBU Physics Chemistry (B.S.) / Tufts Physics (Ph.D. student) Web2k - Web Software Design, Development and Training ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
Re: [Zope3-Users] PyWebOff
On 03.03.2006, at 08:27, Shane Hathaway wrote:
Hello,
I've been assigned to present Zope in a local upcoming Python user
group meeting. As part of the assignment, I'm supposed to solve
the PyWebOff challenge using Zope:
http://pyre.third-bit.com/pyweb/challenge.html
I'd like to do this using Zope 3. However, I'm really struggling.
I feel like I must be using Zope 3 in a really dumb way, because
the code so far is highly repetitive, completely dependent on Zope,
and more XML than Python. This is not going to go over well in the
presentation.
Can anyone tell me how to do this better with Zope 3? Maybe my
Zope 2 experience is preventing me from seeing something obvious.
I've attached the __init__.py and configure.zcml that I created in
a package called challenge.
Shane
from zope.interface import Interface, implements
from zope.schema import Field, TextLine, Int, Date
from zope.app.container.interfaces import IContained, IContainer
from zope.app.container.constraints import ItemTypePrecondition
from zope.app.container.constraints import ContainerTypesConstraint
from zope.app.container.btree import BTreeContainer
class IBook(Interface):
title = TextLine(title=u'title')
year = Int(title=u'year')
authors = TextLine(title=u'authors')
class ILoan(Interface):
username = TextLine(title=u'username')
day = Date(title=u'day')
class ILibrary(IContainer):
def __setitem__(name, object):
pass
__setitem__.precondition = ItemTypePrecondition(IBook, ILoan)
class IBookContained(IContained):
__parent__ = Field(
constraint = ContainerTypesConstraint(ILibrary))
class ILoanContained(IContained):
__parent__ = Field(
constraint = ContainerTypesConstraint(ILibrary))
class Book(object):
implements(IBook, IBookContained)
class Loan(object):
implements(ILoan, ILoanContained)
class Library(BTreeContainer):
implements(ILibrary)
if you use v 3.2 then you should use
from zope.app.container.constraints import contains, containers
instead of the precondition stuff, so you don't need
that ...Contained interfaces, because you can define the interfaces
as strings
well, this just reduces the python code, but looks much cleaner
e.g.
class IBook(IContained):
title = TextLine(title=u'title')
year = Int(title=u'year')
authors = TextLine(title=u'authors')
containers('challange.interfaces.ILibrary')
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Re: [Zope3-Users] PyWebOff
Argh. Darn that user group meeting being down in Utah Valley. Don't they consider the fact that there may be Utahn's who still try to cling to a car-free urban lifestyle notion (especially when they live and work on the same block)? :) Tell them to come up by my house. Terrific restaurants, delis, italian markets, etc. Some of the best Thai food in the city... Anyways, it's too late to help you for the user group meeting in question, but I'd like to take this on as a personal little challenge, seeing if I can come up with a more interesting and pleasing to the Python developer solution. Maybe you can show it next month as an alternate option? On 3/3/06, Shane Hathaway [EMAIL PROTECTED] wrote: Hello, I've been assigned to present Zope in a local upcoming Python user group meeting. As part of the assignment, I'm supposed to solve the PyWebOff challenge using Zope: http://pyre.third-bit.com/pyweb/challenge.html I'd like to do this using Zope 3. However, I'm really struggling. I feel like I must be using Zope 3 in a really dumb way, because the code so far is highly repetitive, completely dependent on Zope, and more XML than Python. This is not going to go over well in the presentation. Can anyone tell me how to do this better with Zope 3? Maybe my Zope 2 experience is preventing me from seeing something obvious. I've attached the __init__.py and configure.zcml that I created in a package called challenge. Shane configure xmlns=http://namespaces.zope.org/zope; xmlns:browser=http://namespaces.zope.org/browser; content class=.Book require permission=zope.View interface=.IBook / require permission=zope.ManageContent set_schema=.IBook / /content content class=.Loan require permission=zope.ManageContent interface=.ILoan / require permission=zope.ManageContent set_schema=.ILoan / /content content class=.Library require permission=zope.ManageContent interface=.ILibrary / require permission=zope.ManageContent set_schema=.ILibrary / /content browser:addform name=addlibrary schema=.ILibrary content_factory=.Library permission=zope.ManageContent / browser:addMenuItem class=.Library permission=zope.ManageContent view=addlibrary title=Library / browser:containerViews for=.ILibrary index=zope.View contents=zope.View add=zope.ManageContent / browser:addform name=addbook schema=.IBook content_factory=.Book permission=zope.ManageContent / browser:addMenuItem class=.Book permission=zope.ManageContent view=addbook title=Book / browser:editform schema=.IBook permission=zope.ManageContent menu=zmi_views title=Edit name=edit / browser:addform name=addloan schema=.ILoan content_factory=.Loan permission=zope.ManageContent / browser:addMenuItem class=.Loan permission=zope.ManageContent view=addloan title=Loan / browser:editform schema=.ILoan permission=zope.ManageContent menu=zmi_views title=Edit name=edit / /configure ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users -- Jeff Shell ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
Re: [Zope3-Users] PyWebOff
Jeff Shell wrote: Argh. Darn that user group meeting being down in Utah Valley. Don't they consider the fact that there may be Utahn's who still try to cling to a car-free urban lifestyle notion (especially when they live and work on the same block)? :) Tell them to come up by my house. Terrific restaurants, delis, italian markets, etc. Some of the best Thai food in the city... Well, as for me and a couple other regular attendees, the meeting is about 50 feet away from work. ;-) Anyways, it's too late to help you for the user group meeting in question, but I'd like to take this on as a personal little challenge, seeing if I can come up with a more interesting and pleasing to the Python developer solution. Maybe you can show it next month as an alternate option? I would be happy to present your solution. I think they'd be happy to see it, too. Shane ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
Re: [Zope3-Users] PyWebOff
Shane Hathaway wrote: Hello, I've been assigned to present Zope in a local upcoming Python user group meeting. As part of the assignment, I'm supposed to solve the PyWebOff challenge using Zope: http://pyre.third-bit.com/pyweb/challenge.html I'd like to do this using Zope 3. However, I'm really struggling. I feel like I must be using Zope 3 in a really dumb way, because the code so far is highly repetitive, completely dependent on Zope, and more XML than Python. This is not going to go over well in the presentation. Can anyone tell me how to do this better with Zope 3? Maybe my Zope 2 experience is preventing me from seeing something obvious. I've attached the __init__.py and configure.zcml that I created in a package called challenge. I agree, the __init__.py and configure.zcml are pretty dry reading. I reckon you could start your PUG presentation from the end (so to speak) by presenting one (or more) doctests. One you have your captive audience, then go the the start. Take a Test-Driven-Development approach. It's easy to disgest an application (and zope) in test case sizes. And as each need arise, bring in the appropriate ZCML to showcase it value. This may help distill the python, zope and zcml. -Tom ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
[Zope3-Users] PyWebOff
Hello, I've been assigned to present Zope in a local upcoming Python user group meeting. As part of the assignment, I'm supposed to solve the PyWebOff challenge using Zope: http://pyre.third-bit.com/pyweb/challenge.html I'd like to do this using Zope 3. However, I'm really struggling. I feel like I must be using Zope 3 in a really dumb way, because the code so far is highly repetitive, completely dependent on Zope, and more XML than Python. This is not going to go over well in the presentation. Can anyone tell me how to do this better with Zope 3? Maybe my Zope 2 experience is preventing me from seeing something obvious. I've attached the __init__.py and configure.zcml that I created in a package called challenge. Shane from zope.interface import Interface, implements from zope.schema import Field, TextLine, Int, Date from zope.app.container.interfaces import IContained, IContainer from zope.app.container.constraints import ItemTypePrecondition from zope.app.container.constraints import ContainerTypesConstraint from zope.app.container.btree import BTreeContainer class IBook(Interface): title = TextLine(title=u'title') year = Int(title=u'year') authors = TextLine(title=u'authors') class ILoan(Interface): username = TextLine(title=u'username') day = Date(title=u'day') class ILibrary(IContainer): def __setitem__(name, object): pass __setitem__.precondition = ItemTypePrecondition(IBook, ILoan) class IBookContained(IContained): __parent__ = Field( constraint = ContainerTypesConstraint(ILibrary)) class ILoanContained(IContained): __parent__ = Field( constraint = ContainerTypesConstraint(ILibrary)) class Book(object): implements(IBook, IBookContained) class Loan(object): implements(ILoan, ILoanContained) class Library(BTreeContainer): implements(ILibrary) configure xmlns=http://namespaces.zope.org/zope; xmlns:browser=http://namespaces.zope.org/browser; content class=.Book require permission=zope.View interface=.IBook / require permission=zope.ManageContent set_schema=.IBook / /content content class=.Loan require permission=zope.ManageContent interface=.ILoan / require permission=zope.ManageContent set_schema=.ILoan / /content content class=.Library require permission=zope.ManageContent interface=.ILibrary / require permission=zope.ManageContent set_schema=.ILibrary / /content browser:addform name=addlibrary schema=.ILibrary content_factory=.Library permission=zope.ManageContent / browser:addMenuItem class=.Library permission=zope.ManageContent view=addlibrary title=Library / browser:containerViews for=.ILibrary index=zope.View contents=zope.View add=zope.ManageContent / browser:addform name=addbook schema=.IBook content_factory=.Book permission=zope.ManageContent / browser:addMenuItem class=.Book permission=zope.ManageContent view=addbook title=Book / browser:editform schema=.IBook permission=zope.ManageContent menu=zmi_views title=Edit name=edit / browser:addform name=addloan schema=.ILoan content_factory=.Loan permission=zope.ManageContent / browser:addMenuItem class=.Loan permission=zope.ManageContent view=addloan title=Loan / browser:editform schema=.ILoan permission=zope.ManageContent menu=zmi_views title=Edit name=edit / /configure ___ Zope3-users mailing list Zope3-users@zope.org http://mail.zope.org/mailman/listinfo/zope3-users
