response = HttpResponse(result.read(), mimetype='application/ms-excel')
response['Content-Disposition'] = 'attachment; filename=Car_details_%s.xls' % today
||
\/
response = HttpResponse(result.read(), mimetype='text/csv')
response['Content-Disposition'] = 'attachment; filename=Car_details_%s.csv' % today
--Since Excel will import a csv file, why not just write a csv file. In mysql, while ugly, you could shell down and use the mysql command line options to export a query to csv.
From: django-users@googlegroups.com [mailto:django-users@googlegroups.com] On Behalf Of Od-Erdene Ch
Sent: Thursday, April 28, 2011 6:23 AM
To: django-users@googlegroups.com
Subject: This section is converting database table to excel file
hi there
this section is converting database table to excel file.
problem is when converting database table to excel file (it is containing 6400 [six thousand four hundred] rows) it is spending more than 10 minutes.
that is very slow. is there any idea to make more faster. Help me
CODE:
if request.GET.has_key('excel') :
if request.GET['excel'] == "true":
qs = CarDetails.objects.all().order_by(sord + sidx)
wb = xlwt.Workbook()
ws = wb.add_sheet(u'CarDetails')
labels = [u"型式", u"車名", u"車輌詳細コード",u'車体形状',u"類別区分番号",u"車輌重量諸元",u"全長",
u"全幅",u"全高",u"用途",u"形状",u"原動機型式",u"総排気量",u"営・自家用区分",
u"乗車定員",u"最大積載量",u"車輌総重量",u"燃料の種類",u"乗車定員括弧",u"最大積載量括弧",
u"ローター数",u"燃料種類",u"燃料種類括弧 その他"]
ws.write_merge(0, 0, 0, 22, u'車輌マスター管理', get_title_style())
label_style = get_label_style2()
for i in range(len(labels)) :
ws.write(1, i, labels[i], label_style)
ws.col(0).width = get_computed_width(-30) # by pixel
ws.col(1).width = get_computed_width(150)
ws.col(2).width = get_computed_width(150)
ws.col(3).width = get_computed_width(150)
ws.col(4).width = get_computed_width(150)
ws.col(5).width = get_computed_width(150)
ws.col(6).width = get_computed_width(150)
ws.col(7).width = get_computed_width(150)
ws.col(8).width = get_computed_width(150)
ws.col(9).width = get_computed_width(150)
ws.col(10).width = get_computed_width(150)
ws.col(11).width = get_computed_width(150)
ws.col(12).width = get_computed_width(150)
ws.col(13).width = get_computed_width(150)
ws.col(14).width = get_computed_width(150)
ws.col(15).width = get_computed_width(150)
ws.col(16).width = get_computed_width(150)
ws.col(17).width = get_computed_width(150)
ws.col(18).width = get_computed_width(150)
ws.col(19).width = get_computed_width(150)
ws.col(20).width = get_computed_width(150)
ws.col(21).width = get_computed_width(150)
ws.col(22).width = get_computed_width(150)
today = datetime.strftime(datetime.today(),"%Y-%m-%d")
rown = 2
simple_style = get_simple_style()
for list in qs :
car_maker_code = ""
car_maker = ""
car_name2 = ""
tax = ""
model = ""
car_name = ""
name = ""
body = ""
class_type_number = ""
weight = ""
length = ""
width = ""
height = ""
usage = ""
view_type = ""
motor_type = ""
totol_piston_cc = ""
is_own = ""
human_size = ""
kg_size = ""
totol_weight = ""
fuel_type = ""
human_size_kakko = ""
kg_size_kakko = ""
rotor_number = ""
fuel_type_kakko = ""
fuel_type_kakko_sonota = ""
if list.model: model = list.model
if list.carname: car_name = list.carname
if list.body: body = list.body
if list.class_type_number: class_type_number = list.class_type_number
if list.weight: weight = list.weight
if list.length: length = list.length
if list.width: width = list.width
if list.height: height = list.height
if list.usage: usage = list.get_usage_display()
if list.view_type: view_type = list.view_type
if list.motor_type: motor_type = list.motor_type
if list.totol_piston_cc: totol_piston_cc = list.totol_piston_cc
if list.is_own: is_own = list.get_is_own_display()
if list.human_size: human_size = list.human_size
if list.kg_size: kg_size = list.kg_size
if list.totol_weight: totol_weight = list.totol_weight
if list.fuel_type: fuel_type = list.get_fuel_type_display()
if list.human_size_kakko: human_size_kakko = list.human_size_kakko
if list.kg_size_kakko: kg_size_kakko = list.kg_size_kakko
if list.rotor_number: rotor_number = list.rotor_number
if list.fuel_type_kakko: fuel_type_kakko = list.fuel_type_kakko
if list.fuel_type_kakko_sonota: fuel_type_kakko_sonota = list.fuel_type_kakko_sonota
ws.write(rown, 0, unicode(model), simple_style)
ws.write(rown, 1, unicode(car_name), simple_style)
ws.write(rown, 2, unicode(name), simple_style)
ws.write(rown, 3, unicode(body), simple_style)
ws.write(rown, 4, unicode(class_type_number), simple_style)
ws.write(rown, 5, unicode(weight), simple_style)
ws.write(rown, 6, unicode(length), simple_style)
ws.write(rown, 7, unicode(width), simple_style)
ws.write(rown, 8, unicode(height), simple_style)
ws.write(rown, 9, unicode(usage), simple_style)
ws.write(rown, 10, unicode(view_type), simple_style)
ws.write(rown, 11, unicode(motor_type), simple_style)
ws.write(rown, 12, unicode(totol_piston_cc), simple_style)
ws.write(rown, 13, unicode(is_own), simple_style)
ws.write(rown, 14, unicode(human_size), simple_style)
ws.write(rown, 15, unicode(kg_size), simple_style)
ws.write(rown, 16, unicode(totol_weight), simple_style)
ws.write(rown, 17, unicode(fuel_type), simple_style)
ws.write(rown, 18, unicode(human_size_kakko), simple_style)
ws.write(rown, 19, unicode(kg_size_kakko), simple_style)
ws.write(rown, 20, unicode(rotor_number), simple_style)
ws.write(rown, 21, unicode(fuel_type_kakko), simple_style)
ws.write(rown, 22, unicode(fuel_type_kakko_sonota), simple_style)
rown += 1
result = StringIO()
wb.save(result)
result.seek(0)
response = HttpResponse(result.read(), mimetype='application/ms-excel')
response['Content-Disposition'] = 'attachment; filename=Car_details_%s.xls' % today
return response
thanks
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