On Friday, August 28, 2020 at 9:05:04 PM UTC-5 bharath...@gmail.com wrote:
Hi,Please check this package. This may help you. All the bestOn Sat, 29 Aug 2020, 4:36 am Patrick Carra, <pcar...@gmail.com> wrote:Hello All! I need some help with a problem I have been struggling with. One of you generous geniuses has the answer I'm sure of it. I am working on integrating an export to csv button(link) on my template to export filtered data from one of my tables. I have previously only been able to dump the entire table to csv which isn't exactly what I need. So my thoughts were to place a button/link on the template passes a parameter(dictionary of my filter criteria) to a view named ExportSearch. The view then calls a function that I have defined to perform my filtered query to the table and then writes outs to csv. In theory I thought this should work but I keep getting errors that I have not been able to resolve and I am at the end of my knowledge capacity here. Applicable code below. Did I mention THANK YOU!!!!From searchLit/urls.pyfrom django.urls import include, pathfrom . import viewsfrom .views import searchapp_name= "searchLit"urlpatterns=[path('customsearch/', views.search, name='search'),path('customsearch/<str:params>/', views.search, name='search'),path('noccustomsearch/', views.nocSearch, name='nocSearch'),path('nocreport/export/', views.noc_export, name='noc_export'),path('customsearch/export/', views.searchLit_export, name='SearchLit_export'),path('customsearch/exportSearch/<str:params>/', views.exportSearch, name='exportSearch'),]From searchLit/views.pydef filterCircuits(params, search_vector):circuits=[]if(params['circuitid']==None and params['bandwidth']==None and params['region']==None and params['carrier']==None and params['status']==None and params['segmentname']==None and params['mrcnew']==None):circuits=Circuitinfotable.objects.all()else:if(params['multipleSearch']!=None and params['multipleSearch']!=""):circuits=Circuitinfotable.objects.annotate(search=search_vector).filter(search=params['multipleSearch'])else:circuits = Circuitinfotable.objects.all()if(params['circuitid']!=None and params['circuitid']!=""):circuits = Circuitinfotable.objects.all()circuits=circuits.filter(circuitid__icontains=params['circuitid'])if(params['bandwidth']!=None and params['bandwidth']!="" and params['bandwidth']!='Select Bandwidth'):circuits=circuits.filter(bandwidth=params['bandwidth'])if(params['region']!=None and params['region']!="" and params['region']!='Select Region'):circuits=circuits.filter(region=params['region'])if(params['carrier']!=None and params['carrier']!="" and params['carrier']!='Select Carrier'):circuits=circuits.filter(carrier=params['carrier'])if(params['status']!=None and params['status']!="" and params['status']!='Select Status'):circuits=circuits.filter(status=params['status'])if(params['segmentname']!=None and params['segmentname']!="" and params['segmentname']!='Select Segment'):circuits=circuits.filter(segmentname=params['segmentname'])if(params['mrcnew']!=None and params['mrcnew']!=""):circuits=circuits.filter(mrcnew=params['mrcnew'])if(params['diversity']!='Select Option'):if(params['diversity']=='None'):circuits=circuits.filter(diversity=None)else:circuits=circuits.filter(diversity__icontains=params['diversity'])if(params['kmz']!='Select YES/NO'):if(params['kmz']=='No'):circuits=circuits.filter(kmz=None)else:circuits=circuits.filter(kmz__isnull=False)return(circuits)def search(request):form = CircuitFormtemplate = 'customsearch/customsearch.html'search_vector = SearchVector('circuitid', 'carrier', 'pathname', 'segmentname', 'segmentid', 'alocationaddress', 'alocationcity', 'alocst', 'zlocationaddress', 'zlocationcity', 'zlocst', 'handoffalocaddress', 'handoffalocst','handoffaloccity', 'handoffzlocaddress', 'handoffzloccity', 'handoffzlocst', 'latestjiraticket', 'installciopsticket', 'retermciopsticket', 'discociopsticket', 'notes', 'diversitynotes')params={'circuitid': request.GET.get('circuitid'),'bandwidth': request.GET.get('bandwidth'),'region': request.GET.get('region'),'carrier': request.GET.get('carrier'),'status': request.GET.get('status'),'segmentname': request.GET.get('segmentname'),'mrcnew': request.GET.get('mrcnew'),'diversity': request.GET.get('diversity'),'kmz': request.GET.get('kmz'),'multipleSearch': request.GET.get('multipleSearch')}context=filterCircuits(params, search_vector)#encoded_params = urllib.parse.urlencode(params)numCircuits=len(context)paramString = str(params)return render(request, template, {'form':form, 'filter':context, 'numcircuits':numCircuits, 'params':params, 'paramString': paramString})def exportSearch(request, params):params = ast.literal_eval(params)search_vector = SearchVector('circuitid', 'carrier', 'pathname', 'segmentname', 'segmentid', 'alocationaddress', 'alocationcity', 'alocst', 'zlocationaddress', 'zlocationcity', 'zlocst', 'handoffalocaddress', 'handoffalocst','handoffaloccity', 'handoffzlocaddress', 'handoffzloccity', 'handoffzlocst', 'latestjiraticket', 'installciopsticket', 'retermciopsticket', 'discociopsticket', 'notes', 'diversitynotes')allcircuits=filterCircuits(params, search_vector)return render_to_csv_response(allcircuits)From template(button/link placed outside of form to capture filters called paramString)<a href="{% url 'exportSearch' paramString %}"><input type="button" value="Self Destruct" /></a>--
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