198658f5f9
- on vire un commentaire obsolète, et on en remet un à jour - un peu de doc sur les converters
76 lines
2.3 KiB
Python
76 lines
2.3 KiB
Python
import csv
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from django.apps import apps
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from django.http import HttpResponse, HttpResponseForbidden
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from django.template.defaultfilters import slugify
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def export(qs, fields=None):
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model = qs.model
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response = HttpResponse(content_type="text/csv")
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response["Content-Disposition"] = "attachment; filename=%s.csv" % slugify(
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model.__name__
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)
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writer = csv.writer(response)
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# Write headers to CSV file
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if fields:
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headers = fields
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else:
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headers = []
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for field in model._meta.fields:
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headers.append(field.name)
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writer.writerow(headers)
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# Write data to CSV file
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for obj in qs:
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row = []
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for field in headers:
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if field in headers:
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val = getattr(obj, field)
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if callable(val):
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val = val()
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row.append(val)
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writer.writerow(row)
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# Return CSV file to browser as download
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return response
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def admin_list_export(
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request, model_name, app_label, queryset=None, fields=None, list_display=True
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):
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"""
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Put the following line in your urls.py BEFORE your admin include:
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path(
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"admin/<slug:app_label>/<slug:model_name>/csv/",
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csv_views.admin_list_export,
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{"fields": ["username"]},
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),
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"""
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if not request.user.is_staff:
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return HttpResponseForbidden()
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if not queryset:
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model = apps.get_model(app_label, model_name)
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queryset = model.objects.all()
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queryset = queryset.filter(profile__is_cof=True)
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if not fields:
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if list_display and len(queryset.model._meta.admin.list_display) > 1:
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fields = queryset.model._meta.admin.list_display
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else:
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fields = None
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return export(queryset, fields)
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"""
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Create your own change_list.html for your admin view and put something
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like this in it:
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{% block object-tools %}
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<ul class="object-tools">
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<li><a href="csv/{%if request.GET%}?{{request.GET.urlencode}}
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{%endif%}" class="addlink">Export to CSV</a></li>
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{% if has_add_permission %}
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<li><a href="add/{% if is_popup %}?_popup=1{% endif %}"
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class="addlink">
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{% blocktrans with cl.opts.verbose_name|escape as name %}
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Add {{ name }}{% endblocktrans %}</a></li>
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{% endif %}
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</ul>
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{% endblock %}
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"""
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