Re: [Zope] Product inhetitance question
This worked for me, what a hack _ properties=[] for i in range(0,len(A._properties)): _properties.append(A._properties[i]) _properties.append({'id':'RenderStandardHeader', 'type':'int','mode':'w'}) tuple(_properties) Andy McKay wrote:
Hmm.... i just tested it in Zope and it worked fine for me. -- Andy McKay, Developer, ActiveState http://www.ActiveState.com Programming for the People
----- Original Message ----- From: "Daniel Rusch" <drusch@globalcrossing.com> To: "Andy McKay" <AndyM@ActiveState.com> Sent: Thursday, August 17, 2000 11:36 AM Subject: Re: [Zope] Product inhetitance question
Great minds think a like or fools never differ.
I tried this to but I get an error: TypeError: bad operand type(s) for +
Dan
Andy McKay wrote:
I just had the exact same problem and I solved this morning by:
class A: _properties = ( {...} )
class B(A): _properties = ( { new stuff... } ) _properties = _properties + A._properties
This is tested in a quick script, but not fully in the products yet. So this will make class B have a properties dict that includes all of A, so you shouldnt need to edit manage_edit... in theory!
-- Andy McKay, Developer, ActiveState http://www.ActiveState.com Programming for the People
----- Original Message ----- From: "Daniel Rusch" <drusch@globalcrossing.com> To: "Andy McKay" <AndyM@activestate.com> Sent: Thursday, August 17, 2000 9:40 AM Subject: Re: [Zope] Product inhetitance question
Sorry to keep bothering you, but I'm on the threshold of success
my B class has an extra property, therefore B's manage_edit needs to address this. In C++ I could override the base class's manage_edit do the B stuff and then call the base class's manage_edit, can this be done in python???
Dan
Andy McKay wrote:
Well by inheritance B has all the methods, properties etc you have in A. So the answer is yes, if A has the foobar method then B will have a foobar method.
Or do I misunderstand your question? -- Andy McKay, Developer, ActiveState http://www.ActiveState.com Programming for the People
----- Original Message ----- From: "Daniel Rusch" <drusch@globalcrossing.com> To: <zope@zope.org> Sent: Thursday, August 17, 2000 8:42 AM Subject: [Zope] Product inhetitance question
Hey all,
Say I have a fully functional (and more importantly, working) Product will call A.
I want to extend this Product's capabilities so I wish to derive another class from it, call it B.
No problem,
class B(A): .........
The question is, (I think the answer is no) is there a way to inherit (i.e. reuse common code and extend it) the manage_Add function and the dtml files from A???
Thanks,
DR
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Daniel Rusch