On 5 Dec, 2005, at 9:20 pm, Michael Schneider wrote:
Sorry for the stupid question, but what would the Controller code look
like for option #1? for CRUD
1) http://yoursite/articles/10/edit
2) http://yoursite/articles/edit/10
3) http://yoursite/articles/edit?id=10
I'm certain some will suggest this is unpythonic, but here goes:
class CrudController(turbogears.Controller):
def __init__( self, crudClass, templateBase, instance ):
self.template_base= templateBase
self.instance= instance
self.crud_class= crudClass
@turbogears.expose()
def create( self, **kw ):
template= "%s.created" % self.template_base
# Create a new instance and save it to the DB based on the
keywords
return dict( tg_template=template )
@turbogears.expose()
def retrieve( self ):
template= "%s.edit" % self.template_base
return dict( instance= self.instance, tg_template=template )
@turbogears.expose()
def update( self, **kw ):
# update the instance based on the keywords and save to DB
return self.retrieve()
@turbogears.expose()
def delete( self ):
self.instance.destroySelf()
template= "%s.deleted" % self.template_base
return dict( tg_template=template )
@turbogears.expose()
def default( self, *args, **kw ):
# determine method based on HTTP method
methodDict= { 'GET': self.retrieve,
'PUT': self.update,
'DELETE': self.delete
}
method= methodDict[cherrypy.request.method]
return method( *args, **kw )
class CrudClassController(turbogears.Controller):
def __init__( self, crudClass, keyMethod, templateBase ):
self.crud_class= crudClass
self.template_base= templateBase
self.key_method= keyMethod
@turbogears.expose()
def index( self, **kw ):
if 'POST'==cherrypy.request.method:
# need to perform create
return CrudController( self.crud_class,
self.template_base ).create( **kw )
# Otherwise, assume it's a GET request and return all instances
all= self.crud_class.select()
template= "%s.list" % self.template_base
return dict( all=all, tg_template=template )
def __getattr__( self, objectKey ):
'''
Look up the object by key and return a controller for it.
'''
instance= getattr(self.crud_class, self.key_method)
( objectKey )
return CrudController( self.crud_class, self.template_base,
instance )
class Root(turbogears.RootController):
# the CRUD controller for all articles
articles= CrudController( blog.model.Article,
blog.model.Article.bySlug,
"blog.templates.article.crud" )
Completely composed in Mail.app and untested.
--
Jeff Watkins
http://newburyportion.com/
In the USDA study [of the meat packing industry conducted in 1996]
78.6 percent of the ground beef contained microbes that are spread
primarily by fecal material. The medical literature on the causes of
food poisoning is full of euphemisms and dry scientific terms:
coliform levels, aerobic plate counts, sorbitol, MacConkey agar, and
so on. Behind them lies a simple explanation for why eating a
hamburger can now make you seriously ill: There is shit in the meat.
-- Eric Schlosser, Fast Food Nation
