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work in progress: cybertools.reporter

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git-svn-id: svn://svn.cy55.de/Zope3/src/cybertools/trunk@1749 fd906abe-77d9-0310-91a1-e0d9ade77398
This commit is contained in:
helmutm 2007-05-20 17:11:57 +00:00
parent a0a52ab055
commit 23ca7210c1
2 changed files with 44 additions and 47 deletions
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79
reporter/interfaces.py
View file

@ -26,46 +26,6 @@ import zope
from zope.interface import Interface, Attribute
# iterable stuff for batching, sorting, filtering of results
class IBatch(Interface):
""" Represents a part (sort of a slice) of an iterable.
"""
iterable = Attribute(u'The iterable this batch belongs to')
start = Attribute(u'The current start index of the batch in the parent iterable')
def __getitem__(idx):
""" Return the item at index idx on the current page.
"""
def next():
""" Return the next item on the current page. Raise StopIteration if
the end of the batch is reached.
"""
def __len__():
""" Return the number of items on the current page.
"""
def getIndexRelative(relativePageNumber):
""" Return the absolute page index based on the current page of
the batch object.
Using +1 or -1 retrieves the next or previous batch.
If a page before the first one is addressed return 0,
if a page after the last one is addressed return the index
of the last page.
"""
def getIndexAbsolute(pageNumber):
""" Return the absolute page index.
0 addresses the first batch page, -1 the last.
Return None if the corresponding page does not exist.
"""
# result sets, rows, cells...
class IResultSet(Interface):
@ -123,3 +83,42 @@ class IDataSource(Interface):
""" Return an iterable that provides the data to be evaluated.
"""
# iterable stuff for batching, sorting, filtering of results
class IBatch(Interface):
""" Represents a part (sort of a slice) of an iterable.
"""
iterable = Attribute(u'The iterable this batch belongs to')
start = Attribute(u'The current start index of the batch in the parent iterable')
def __getitem__(idx):
""" Return the item at index idx on the current page.
"""
def next():
""" Return the next item on the current page. Raise StopIteration if
the end of the batch is reached.
"""
def __len__():
""" Return the number of items on the current page.
"""
def getIndexRelative(relativePageNumber):
""" Return the absolute page index based on the current page of
the batch object.
Using +1 or -1 retrieves the next or previous batch.
If a page before the first one is addressed return 0,
if a page after the last one is addressed return the index
of the last page.
"""
def getIndexAbsolute(pageNumber):
""" Return the absolute page index.
0 addresses the first batch page, -1 the last.
Return None if the corresponding page does not exist.
"""

12
reporter/resultset.py
View file

@ -65,8 +65,8 @@ class Row(object):
schema = self.resultSet.schema
if schema is None:
return {}
return dict([(f.__name__, getattr(self.context, f.__name__))
for f in schema.fields])
for f in schema.fields:
yield Cell(f, getattr(self.context, f.__name__), self)
class ResultSet(object):
@ -74,14 +74,12 @@ class ResultSet(object):
implements(IResultSet)
adapts(IDataSource)
schema = None
view = None
def __init__(self, context):
self.context = context
_schema = None
def setSchema(self, schema): self._schema = schema
def getSchema(self): return self._schema
schema = property(getSchema, setSchema)
@property
def rows(self):
for o in iter(self.context):