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reporting: introduce 'limits' parameter as basis for batching and other kinds of reducing report output after selection and sorting

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Helmut Merz 2012-06-18 09:29:12 +02:00
parent 7fafd9dccd
commit 976fa5e945
2 changed files with 7 additions and 1 deletions
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1
composer/report/base.py
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@ -82,6 +82,7 @@ class Report(Template):
queryCriteria = None queryCriteria = None
outputFields = () outputFields = ()
sortCriteria = () sortCriteria = ()
limits = None
def __init__(self, name): def __init__(self, name):

7
composer/report/result.py
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@ -80,12 +80,14 @@ class GroupHeaderRow(BaseRow):
class ResultSet(object): class ResultSet(object):
def __init__(self, context, data, rowFactory=Row, def __init__(self, context, data, rowFactory=Row,
sortCriteria=None, queryCriteria=BaseQueryCriteria()): sortCriteria=None, queryCriteria=BaseQueryCriteria(),
limits=None):
self.context = context # the report or report instance self.context = context # the report or report instance
self.data = data self.data = data
self.rowFactory = rowFactory self.rowFactory = rowFactory
self.sortCriteria = sortCriteria self.sortCriteria = sortCriteria
self.queryCriteria = queryCriteria self.queryCriteria = queryCriteria
self.limits = limits
self.totals = BaseRow(None, self) self.totals = BaseRow(None, self)
def getResult(self): def getResult(self):
@ -93,6 +95,9 @@ class ResultSet(object):
result = [row for row in result if self.queryCriteria.check(row)] result = [row for row in result if self.queryCriteria.check(row)]
if self.sortCriteria: if self.sortCriteria:
result.sort(key=lambda x: [f.getSortValue(x) for f in self.sortCriteria]) result.sort(key=lambda x: [f.getSortValue(x) for f in self.sortCriteria])
if self.limits:
start, stop = self.limits
result = result[start:stop]
for idx, row in enumerate(result): for idx, row in enumerate(result):
row.sequenceNumber = idx + 1 row.sequenceNumber = idx + 1
return result return result