symposion_app Files · vendor/symposion/proposals/actions.py

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James Polley

urlize abstracts

I've looked through the database and I can't find any accepted
proposals that actually contain anything to linkify - but I've had
several requests from people that I think are reasonable, things like
being able to link to their project (we ask them to provide a project
url but we don't use that link)

This seems like a reasonably fast way to let those people add a
link. We still have to manually accept changes to their proposal so we
have a chance to look at the content of the url if we want.

The urlize filter adds rel=nofollow to the link automatically.

import csv

from django.http import HttpResponse
from django.utils.translation import ugettext_lazy as _


def export_as_csv_action(description=None, fields=None, exclude=None,
                         header=True):
    """
    This function returns an export csv action
    'fields' and 'exclude' work like in Django ModelForm
    'header' is whether or not to output the column names as the first row
    """
    def export_as_csv(modeladmin, request, queryset):
        """
        Generic csv export admin action.
        based on http://djangosnippets.org/snippets/1697/
        """
        opts = modeladmin.model._meta
        if fields:
            fieldset = set(fields)
            field_names = fieldset
        elif exclude:
            excludeset = set(exclude)
            field_names = field_names - excludeset
        response = HttpResponse(content_type="text/csv")
        response["Content-Disposition"] = "attachment; filename=%s.csv" % str(opts).replace(".", "_")
        writer = csv.writer(response)
        if header:
            writer.writerow(list(field_names))
        for obj in queryset:
            writer.writerow(
                [str(getattr(obj, field)).encode("utf-8", "replace") for field in field_names])
        return response
    if description is None:
        description = _("Export selected objects as CSV file")
    export_as_csv.short_description = description
    return export_as_csv