#1237: Report Designer - Variables - Attaching to bands
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Reporter: lalong | Owner:
Type: enhancement | Status: new
Priority: minor | Milestone: 0.9.2
Component: reporting | Version: 0.9.1
Resolution: | Keywords: reportdesigner, pagefooter, variables
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Comment (by lalong):
Suggested mod to ReportWriter class to resolve this ticket
1) Add the following methods
def setGroupVar(self, groupid=0, var='Var', val=0):
self.ReportForm['Groups'][groupid][var] = val
def incGroupVar(self, groupid=0, var='Var', val=1):
if not var in self.ReportForm['Groups'][groupid].keys():
self.setGroupVar(groupid, var)
self.ReportForm['Groups'][groupid][var] += val
def getGroupVar(self, groupid=0, var='Var'):
try:
return(self.ReportForm['Groups'][groupid][var])
except:
return (None)
With the above code added, we can now add an object in the group footer
with the expression...
self.incGroupVar(1,'Count')
where "1" is the grouplevel and "Count" is the name if the group variable
to process.
Note: Any name can be used for the group variable and it auto increments
by 1 unless a third parameter is sent.
To retrieve the value and display it on the report, we can add a group
that emulates a report level band, by adding a group, setting its expr=1
and moving it to the top level. Then, in the group footer, add an object
with...
self.getGroupVar(1,'Count')
as the expr.
--
Ticket URL: <http://trac.dabodev.com/ticket/1237#comment:1>
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