def getBatchForm(self, objects, request):
"""Create batch based on objects no sorting for filter applied.
"""
batchSize = request.get('batchSize',self.defaultBatchSize)
if batchSize in ['', '0']:
batchSize = 0
else:
batchSize = int(batchSize)
start = int(request.get('start',0))
resetStart = int(request.get('resetStart',0))
lastindex = request.get('lastindex',0)
navbutton = request.get('navbutton',None)
if navbutton == "first" or resetStart:
start = 0
elif navbutton == "last":
start=lastindex
elif navbutton == "next":
start = start + batchSize
if start > lastindex: start = lastindex
elif navbutton == "prev":
start = start - batchSize
elif request.has_key("nextstart"):
start = request.nextstart
if 0 < start > len(objects): start = 0
request.start = start
objects = ZTUtils.Batch(objects, batchSize or len(objects),
start=request.start, orphan=0)
return objects
def getBatch(self, tableName, objects, **keys):
"""Filter, sort and batch objects and pass return set.
"""
if log.isEnabledFor(logging.DEBUG):
import os
fmt = 'getBatch pid={0}, tableName={1}, {2} objects'
pid = os.getpid()
log.debug(fmt.format(pid, tableName, len(objects)))
if not objects:
objects = []
tableState = self.setupTableState(tableName, **keys)
if tableState.onlyMonitored and objects:
objects = [o for o in objects if getattr(o, 'isMonitored', o.monitored)()]
if tableState.filter and objects:
objects = self.filterObjects(objects, tableState.filter,
tableState.filterFields)
# objects is frequently a generator. Need a list in order to sort
if not isinstance(objects, list):
objects = list(objects)
if tableState.sortedHeader:
objects = self.sortObjects(objects, tableState)
tableState.totalobjs = len(objects)
tableState.buildPageNavigation(objects)
if not hasattr(self.REQUEST, 'doExport'):
objects = ZTUtils.Batch(objects,
tableState.batchSize or len(objects),
start=tableState.start, orphan=0)
return objects