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[edumed.git] / contact / admin.py
index 33b1963..22d3593 100644 (file)
@@ -1,17 +1,23 @@
+# -*- coding: utf-8 -*-
+import csv
+import json
+
 from django.contrib import admin
-from django.forms import ModelForm
-from .models import Contact
 from django.utils.translation import ugettext as _
-from .forms import contact_forms, admin_list_width
-from django.template import Template
 from django.utils.safestring import mark_safe
+from django.conf.urls import patterns, url
+from django.http import HttpResponse, Http404
+
+from edumed.utils import UnicodeCSVWriter
+from .forms import contact_forms, admin_list_width
+from .models import Contact
 
 
 class ContactAdminMeta(admin.ModelAdmin.__class__):
     def __getattr__(cls, name):
         if name.startswith('admin_list_'):
             return lambda self: ""
-        raise AttributeError, name
+        raise AttributeError(name)
 
 
 class ContactAdmin(admin.ModelAdmin):
@@ -23,10 +29,11 @@ class ContactAdmin(admin.ModelAdmin):
     readonly_fields = ['form_tag', 'created_at', 'contact', 'ip']
     list_filter = ['form_tag']
 
-    def admin_list(self, obj, nr):
+    @staticmethod
+    def admin_list(obj, nr):
         try:
             field_name = contact_forms[obj.form_tag].admin_list[nr]
-        except BaseException, e:
+        except BaseException:
             return ''
         else:
             return Contact.pretty_print(obj.body.get(field_name, ''), for_html=True)
@@ -35,9 +42,9 @@ class ContactAdmin(admin.ModelAdmin):
         if name.startswith('admin_list_'):
             nr = int(name[len('admin_list_'):])
             return lambda obj: self.admin_list(obj, nr)
-        raise AttributeError, name
+        raise AttributeError(name)
 
-    def change_view(self, request, object_id, extra_context=None):
+    def change_view(self, request, object_id, form_url='', extra_context=None):
         if object_id:
             try:
                 instance = Contact.objects.get(pk=object_id)
@@ -46,10 +53,8 @@ class ContactAdmin(admin.ModelAdmin):
                 pass
             else:
                 # Create readonly fields from the body JSON.
-                body_fields = ['body__%s' % k for k in instance.body.keys()]
                 attachments = list(instance.attachment_set.all())
-                body_fields += ['body__%s' % a.tag for a in attachments]
-                self.readonly_fields.extend(body_fields)
+                body_keys = instance.body.keys() + [a.tag for a in attachments]
 
                 # Find the original form.
                 try:
@@ -58,15 +63,12 @@ class ContactAdmin(admin.ModelAdmin):
                     orig_fields = {}
 
                 # Try to preserve the original order.
-                admin_fields = []
                 orig_keys = list(orig_fields.keys())
-                while orig_keys:
-                    key = orig_keys.pop(0)
-                    key = "body__%s" % key
-                    if key in body_fields:
-                        admin_fields.append(key)
-                        body_fields.remove(key)
-                admin_fields.extend(body_fields)
+                admin_keys = [key for key in orig_keys if key in body_keys] + \
+                             [key for key in body_keys if key not in orig_keys]
+                admin_fields = ['body__%s' % key for key in admin_keys]
+
+                self.readonly_fields.extend(admin_fields)
 
                 self.fieldsets = [
                     (None, {'fields': self.fields}),
@@ -74,21 +76,102 @@ class ContactAdmin(admin.ModelAdmin):
                 ]
 
                 # Create field getters for fields and attachments.
+                def attach_getter(key, value):
+                    def f(self):
+                        return value
+                    f.short_description = orig_fields[key].label if key in orig_fields else _(key)
+                    setattr(self, "body__%s" % key, f)
+
                 for k, v in instance.body.items():
-                    f = (lambda v: lambda self: v)(Contact.pretty_print(v, for_html=True))
-                    f.short_description = orig_fields[k].label if k in orig_fields else _(k)
-                    setattr(self, "body__%s" % k, f)
+                    attach_getter(k, Contact.pretty_print(v, for_html=True))
 
                 download_link = "<a href='%(url)s'>%(url)s</a>"
                 for attachment in attachments:
-                    k = attachment.tag
                     link = mark_safe(download_link % {
                             'url': attachment.get_absolute_url()})
-                    f = (lambda v: lambda self: v)(link)
-                    f.short_description = orig_fields[k].label if k in orig_fields else _(k)
-                    setattr(self, "body__%s" % k, f)
-        return super(ContactAdmin, self).change_view(request, object_id,
-            extra_context=extra_context)
+                    attach_getter(attachment.tag, link)
+        return super(ContactAdmin, self).change_view(
+            request, object_id, form_url=form_url, extra_context=extra_context)
+
+    def changelist_view(self, request, extra_context=None):
+        context = dict()
+        if 'form_tag' in request.GET:
+            form = contact_forms.get(request.GET['form_tag'])
+            context['extract_types'] = [
+                {'slug': 'all', 'label': _('all')},
+                {'slug': 'contacts', 'label': _('contacts')}]
+            context['extract_types'] += [type for type in getattr(form, 'extract_types', [])]
+        return super(ContactAdmin, self).changelist_view(request, extra_context=context)
+
+    def get_urls(self):
+        # urls = super(ContactAdmin, self).get_urls()
+        return patterns(
+            '',
+            url(r'^extract/(?P<form_tag>[\w-]+)/(?P<extract_type_slug>[\w-]+)/$',
+                self.admin_site.admin_view(extract_view), name='contact_extract')
+        ) + super(ContactAdmin, self).get_urls()
+
+
+def extract_view(request, form_tag, extract_type_slug):
+    contacts_by_spec = dict()
+    form = contact_forms.get(form_tag)
+    if form is None and extract_type_slug not in ('contacts', 'all'):
+        raise Http404
+
+    q = Contact.objects.filter(form_tag=form_tag)
+    at_year = request.GET.get('created_at__year')
+    at_month = request.GET.get('created_at__month')
+    if at_year:
+        q = q.filter(created_at__year=at_year)
+        if at_month:
+            q = q.filter(created_at__month=at_month)
+
+    # Segregate contacts by body key sets
+    if form:
+        orig_keys = list(form().fields.keys())
+    else:
+        orig_keys = []
+    for contact in q.all():
+        if extract_type_slug == 'contacts':
+            keys = ['contact']
+        elif extract_type_slug == 'all':
+            keys = contact.body.keys() + ['contact']
+            keys = [key for key in orig_keys if key in keys] + [key for key in keys if key not in orig_keys]
+        else:
+            keys = form.get_extract_fields(contact, extract_type_slug)
+        contacts_by_spec.setdefault(tuple(keys), []).append(contact)
+
+    response = HttpResponse(content_type='text/csv')
+    csv_writer = UnicodeCSVWriter(response)
+
+    # Generate list for each body key set
+    for keys, contacts in contacts_by_spec.items():
+        csv_writer.writerow(keys)
+        for contact in contacts:
+            if extract_type_slug == 'contacts':
+                records = [dict(contact=contact.contact)]
+            elif extract_type_slug == 'all':
+                records = [dict(contact=contact.contact, **contact.body)]
+            else:
+                records = form.get_extract_records(keys, contact, extract_type_slug)
+
+            for record in records:
+                for key in keys:
+                    if key not in record:
+                        record[key] = ''
+                    if isinstance(record[key], basestring):
+                        pass
+                    elif isinstance(record[key], bool):
+                        record[key] = 'tak' if record[key] else 'nie'
+                    elif isinstance(record[key], (list, tuple)) and all(isinstance(v, basestring) for v in record[key]):
+                        record[key] = ', '.join(record[key])
+                    else:
+                        record[key] = json.dumps(record[key])
+
+                csv_writer.writerow([record[key] for key in keys])
+        csv_writer.writerow([])
 
+    response['Content-Disposition'] = 'attachment; filename="kontakt.csv"'
+    return response
 
 admin.site.register(Contact, ContactAdmin)