Here is my onchange code that gets the error :
def onchange_asset_id(self,cr,uid,asset_id,qty,bal_units,context=None ):
tot = 0
rem = 0
rental_id = None
value = {'value':{'asset_id': ''}}
with_asset = 0.0
rental_obj = self.pool.get('fleet.rentals')
rental_id = context.get('rent_id')
if rental_id:
for rid in rental_obj.browse(cr,uid,[rental_id],context=None):
sqlreq = "select sum(qty), asset_id " \
"from fleet_rentals fr ,fleet_rentals_line frl " \
"where fr.id = frl.rent_id and asset_id = " + str(asset_id) + " " \
"and frl.id != " +str(rental_id) + " " \
"group by asset_id "
cr.execute(sqlreq)
resline = cr.fetchall()
The error message is this :
Server Traceback (most recent call last):
File "/opt/openerp/server-70/openerp/addons/web/session.py", line 90, in send
return openerp.netsvc.dispatch_rpc(service_name, method, args)
File "/opt/openerp/server-70/openerp/netsvc.py", line 293, in dispatch_rpc
result = ExportService.getService(service_name).dispatch(method, params)
File "/opt/openerp/server-70/openerp/service/web_services.py", line 626, in dispatch
res = fn(db, uid, *params)
File "/opt/openerp/server-70/openerp/osv/osv.py", line 188, in execute_kw
return self.execute(db, uid, obj, method, *args, **kw or {})
File "/opt/openerp/server-70/openerp/osv/osv.py", line 131, in wrapper
return f(self, dbname, *args, **kwargs)
File "/opt/openerp/server-70/openerp/osv/osv.py", line 197, in execute
res = self.execute_cr(cr, uid, obj, method, *args, **kw)
File "/opt/openerp/server-70/openerp/osv/osv.py", line 185, in execute_cr
return getattr(object, method)(cr, uid, *args, **kw)
File "/opt/openerp/biz1_addons_70/biz1_cmms/fleet.py", line 331, in onchange_asset_id
rental_id = context.get('rent_id')
AttributeError: 'NoneType' object has no attribute 'get'
