contact/admin.py

   1 from django.contrib import admin
   2 from django.forms import ModelForm
   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.template import Template
   7 from django.utils.safestring import mark_safe
   8 from django.conf.urls import patterns, url
   9 from django.http import HttpResponse, Http404
  10
  11 from .utils import csv_prepare
  12
  13
  14 class ContactAdminMeta(admin.ModelAdmin.__class__):
  15     def __getattr__(cls, name):
  16         if name.startswith('admin_list_'):
  17             return lambda self: ""
  18         raise AttributeError, name
  19
  20
  21 class ContactAdmin(admin.ModelAdmin):
  22     __metaclass__ = ContactAdminMeta
  23     date_hierarchy = 'created_at'
  24     list_display = ['created_at', 'contact', 'form_tag'] + \
  25         ["admin_list_%d" % i for i in range(admin_list_width)]
  26     fields = ['form_tag', 'created_at', 'contact', 'ip']
  27     readonly_fields = ['form_tag', 'created_at', 'contact', 'ip']
  28     list_filter = ['form_tag']
  29
  30     def admin_list(self, obj, nr):
  31         try:
  32             field_name = contact_forms[obj.form_tag].admin_list[nr]
  33         except BaseException, e:
  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, 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(request, object_id,
  95             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'] = [dict(slug = 'all', label = _('all'))] + [dict(slug = 'contacts', label = _('contacts'))]
 102             context['extract_types'] += [type for type in getattr(form, 'extract_types', [])]
 103         return super(ContactAdmin, self).changelist_view(request, extra_context = context)
 104
 105     def get_urls(self):
 106         urls = super(ContactAdmin, self).get_urls()
 107         return patterns('',
 108             url(r'^extract/(?P<form_tag>[\w-]+)/(?P<extract_type_slug>[\w-]+)/$', self.admin_site.admin_view(extract_view), name='contact_extract')
 109         ) + super(ContactAdmin, self).get_urls()
 110
 111
 112 def extract_view(request, form_tag, extract_type_slug):
 113     toret = u''
 114     contacts_by_spec = dict()
 115     form = contact_forms.get(form_tag)
 116     if form is None and extract_type_slug not in ('contacts', 'all'):
 117         raise Http404
 118
 119     q = Contact.objects.filter(form_tag = form_tag)
 120     at_year = request.GET.get('created_at__year')
 121     at_month = request.GET.get('created_at__month')
 122     if at_year:
 123         q = q.filter(created_at__year = at_year)
 124         if at_month:
 125             q = q.filter(created_at__month = at_month)
 126
 127     # Segregate contacts by body key sets
 128     for contact in q.all():
 129         if extract_type_slug == 'contacts':
 130             keys = ['contact']
 131         elif extract_type_slug == 'all':
 132             keys = contact.body.keys() + ['contact']
 133         else:
 134             keys = form.get_extract_fields(contact, extract_type_slug)
 135         contacts_by_spec.setdefault(tuple(keys), []).append(contact)
 136
 137     # Generate list for each body key set
 138     for keys, contacts in contacts_by_spec.items():
 139         toret += u','.join(keys) + '\n'
 140         for contact in contacts:
 141             if extract_type_slug == 'contacts':
 142                 records = [dict(contact=contact.contact)]
 143             elif extract_type_slug == 'all':
 144                 records = [dict(contact = contact.contact, **contact.body)]
 145             else:
 146                 records = form.get_extract_records(keys, contact, extract_type_slug)
 147
 148             for record in records:
 149                 for key in keys:
 150                     if key not in record:
 151                         record[key] = ''
 152                     record[key] = csv_prepare(record[key])
 153                 toret += u','.join([record[key] for key in keys]) + '\n'
 154         toret += '\n\n'
 155
 156     response = HttpResponse(toret, content_type = 'text/csv')
 157     response['Content-Disposition'] = 'attachment; filename="kontakt.csv"'
 158     return response
 159
 160 admin.site.register(Contact, ContactAdmin)