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Generic admin action export selected rows to excel

Author:
jordic
Posted:
September 30, 2011
Language:
Python
Version:
1.3
Score:
2 (after 2 ratings)

Based on http://djangosnippets.org/snippets/1697/ but improved with multiline fields, and unicode chars. Also it generates an xls file, not a csv one.

Requires, pyExcelerator

Usage:

Add the code to your project, e.g. a file called actions.py in the project root.

Register the action in your apps admin.py:

from myproject.actions import export_as_xls
class MyAdmin(admin.ModelAdmin):
    actions = [export_as_xls]

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from django.core.exceptions import PermissionDenied
from django.http import HttpResponse
from pyExcelerator import *


def export_as_xls(modeladmin, request, queryset):
    """
    Generic xls export admin action.
    """
    if not request.user.is_staff:
        raise PermissionDenied
    opts = modeladmin.model._meta
    
    wb = Workbook()
    ws0 = wb.add_sheet('0')
    col = 0
    field_names = []
    # write header row
    for field in opts.fields:
        ws0.write(0, col, field.name)
        field_names.append(field.name)
        col = col + 1
    
    row = 1
    # Write data rows
    for obj in queryset:
        col = 0
        for field in field_names:
            val = unicode(getattr(obj, field)).strip()
            ws0.write(row, col, val)
            col = col + 1
        row = row + 1
    
    wb.save('/tmp/output.xls')
    response = HttpResponse(open('/tmp/output.xls','r').read(),
                  mimetype='application/ms-excel')
    response['Content-Disposition'] = 'attachment; filename=%s.xls' % unicode(opts).replace('.', '_')
    return response
    
export_as_csv.short_description = "Export selected objects to XLS"

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Comments

aemb87 (on October 19, 2012):

Hi! this is awesome, i've just used it for one of my projects.

I did a small change so i dont have to save it to the filesystem:

f = StringIO()
wb.save(f)
f.seek(0)
response = HttpResponse(f.read(), mimetype='application/ms-excel')

I hope this can be helpful to somebody!

Andrés

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