contact/admin.py

   1 # -*- coding: utf-8 -*-
   2 from django.contrib import admin
   3 from .models import Contact
   4 from django.utils.translation import ugettext as _
   5 from .forms import contact_forms, admin_list_width
   6 from django.utils.safestring import mark_safe
   7 from django.conf.urls import patterns, url
   8 from django.http import HttpResponse, Http404
   9
  10 from .utils import csv_prepare
  11
  12
  13 class ContactAdminMeta(admin.ModelAdmin.__class__):
  14     def __getattr__(cls, name):
  15         if name.startswith('admin_list_'):
  16             return lambda self: ""
  17         raise AttributeError(name)
  18
  19
  20 class ContactAdmin(admin.ModelAdmin):
  21     __metaclass__ = ContactAdminMeta
  22     date_hierarchy = 'created_at'
  23     list_display = ['created_at', 'contact', 'form_tag'] + \
  24         ["admin_list_%d" % i for i in range(admin_list_width)]
  25     fields = ['form_tag', 'created_at', 'contact', 'ip']
  26     readonly_fields = ['form_tag', 'created_at', 'contact', 'ip']
  27     list_filter = ['form_tag']
  28
  29     @staticmethod
  30     def admin_list(obj, nr):
  31         try:
  32             field_name = contact_forms[obj.form_tag].admin_list[nr]
  33         except BaseException:
  34             return ''
  35         else:
  36             return Contact.pretty_print(obj.body.get(field_name, ''), for_html=True)
  37
  38     def __getattr__(self, name):
  39         if name.startswith('admin_list_'):
  40             nr = int(name[len('admin_list_'):])
  41             return lambda obj: self.admin_list(obj, nr)
  42         raise AttributeError(name)
  43
  44     def change_view(self, request, object_id, from_url='', extra_context=None):
  45         if object_id:
  46             try:
  47                 instance = Contact.objects.get(pk=object_id)
  48                 assert isinstance(instance.body, dict)
  49             except (Contact.DoesNotExist, AssertionError):
  50                 pass
  51             else:
  52                 # Create readonly fields from the body JSON.
  53                 body_fields = ['body__%s' % k for k in instance.body.keys()]
  54                 attachments = list(instance.attachment_set.all())
  55                 body_fields += ['body__%s' % a.tag for a in attachments]
  56                 self.readonly_fields.extend(body_fields)
  57
  58                 # Find the original form.
  59                 try:
  60                     orig_fields = contact_forms[instance.form_tag]().fields
  61                 except KeyError:
  62                     orig_fields = {}
  63
  64                 # Try to preserve the original order.
  65                 admin_fields = []
  66                 orig_keys = list(orig_fields.keys())
  67                 while orig_keys:
  68                     key = orig_keys.pop(0)
  69                     key = "body__%s" % key
  70                     if key in body_fields:
  71                         admin_fields.append(key)
  72                         body_fields.remove(key)
  73                 admin_fields.extend(body_fields)
  74
  75                 self.fieldsets = [
  76                     (None, {'fields': self.fields}),
  77                     (_('Body'), {'fields': admin_fields}),
  78                 ]
  79
  80                 # Create field getters for fields and attachments.
  81                 for k, v in instance.body.items():
  82                     f = (lambda v: lambda self: v)(Contact.pretty_print(v, for_html=True))
  83                     f.short_description = orig_fields[k].label if k in orig_fields else _(k)
  84                     setattr(self, "body__%s" % k, f)
  85
  86                 download_link = "<a href='%(url)s'>%(url)s</a>"
  87                 for attachment in attachments:
  88                     k = attachment.tag
  89                     link = mark_safe(download_link % {
  90                             'url': attachment.get_absolute_url()})
  91                     f = (lambda v: lambda self: v)(link)
  92                     f.short_description = orig_fields[k].label if k in orig_fields else _(k)
  93                     setattr(self, "body__%s" % k, f)
  94         return super(ContactAdmin, self).change_view(
  95             request, object_id, from_url=from_url, extra_context=extra_context)
  96
  97     def changelist_view(self, request, extra_context=None):
  98         context = dict()
  99         if 'form_tag' in request.GET:
 100             form = contact_forms.get(request.GET['form_tag'])
 101             context['extract_types'] = [
 102                 {'slug': 'all', 'label': _('all')},
 103                 {'slug': 'contacts', 'label': _('contacts')}]
 104             context['extract_types'] += [type for type in getattr(form, 'extract_types', [])]
 105         return super(ContactAdmin, self).changelist_view(request, extra_context=context)
 106
 107     def get_urls(self):
 108         # urls = super(ContactAdmin, self).get_urls()
 109         return patterns(
 110             '',
 111             url(r'^extract/(?P<form_tag>[\w-]+)/(?P<extract_type_slug>[\w-]+)/$',
 112                 self.admin_site.admin_view(extract_view), name='contact_extract')
 113         ) + super(ContactAdmin, self).get_urls()
 114
 115
 116 def extract_view(request, form_tag, extract_type_slug):
 117     toret = u''
 118     contacts_by_spec = dict()
 119     form = contact_forms.get(form_tag)
 120     if form is None and extract_type_slug not in ('contacts', 'all'):
 121         raise Http404
 122
 123     q = Contact.objects.filter(form_tag=form_tag)
 124     at_year = request.GET.get('created_at__year')
 125     at_month = request.GET.get('created_at__month')
 126     if at_year:
 127         q = q.filter(created_at__year=at_year)
 128         if at_month:
 129             q = q.filter(created_at__month=at_month)
 130
 131     # Segregate contacts by body key sets
 132     for contact in q.all():
 133         if extract_type_slug == 'contacts':
 134             keys = ['contact']
 135         elif extract_type_slug == 'all':
 136             keys = contact.body.keys() + ['contact']
 137         else:
 138             keys = form.get_extract_fields(contact, extract_type_slug)
 139         contacts_by_spec.setdefault(tuple(keys), []).append(contact)
 140
 141     # Generate list for each body key set
 142     for keys, contacts in contacts_by_spec.items():
 143         toret += u','.join(keys) + '\n'
 144         for contact in contacts:
 145             if extract_type_slug == 'contacts':
 146                 records = [dict(contact=contact.contact)]
 147             elif extract_type_slug == 'all':
 148                 records = [dict(contact=contact.contact, **contact.body)]
 149             else:
 150                 records = form.get_extract_records(keys, contact, extract_type_slug)
 151
 152             for record in records:
 153                 for key in keys:
 154                     if key not in record:
 155                         record[key] = ''
 156                     record[key] = csv_prepare(record[key])
 157                 toret += u','.join([record[key] for key in keys]) + '\n'
 158         toret += '\n\n'
 159
 160     response = HttpResponse(toret, content_type='text/csv')
 161     response['Content-Disposition'] = 'attachment; filename="kontakt.csv"'
 162     return response
 163
 164 admin.site.register(Contact, ContactAdmin)