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cavemanon-wagtail-personali…/src/wagtail_personalisation/views.py
2019-03-15 11:21:14 +01:00

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Python

import csv
from django import forms
from django.core.exceptions import PermissionDenied
from django.db import transaction
from django.http import (
HttpResponse, HttpResponseForbidden, HttpResponseRedirect)
from django.shortcuts import get_object_or_404
from django.urls import reverse
from django.utils.translation import ugettext_lazy as _
from wagtail.contrib.modeladmin.options import ModelAdmin, modeladmin_register
from wagtail.contrib.modeladmin.views import DeleteView, IndexView
from wagtail.core.models import Page
from wagtail_personalisation.models import Segment
from wagtail_personalisation.utils import can_delete_pages
class SegmentModelIndexView(IndexView):
"""Placeholder for additional list functionality."""
pass
class SegmentModelDashboardView(IndexView):
"""Additional dashboard functionality."""
def media(self):
return forms.Media(
css={'all': ['css/dashboard.css']},
js=['js/commons.js', 'js/dashboard.js']
)
def get_template_names(self):
return [
'modeladmin/wagtail_personalisation/segment/dashboard.html',
'modeladmin/index.html'
]
class SegmentModelDeleteView(DeleteView):
def get_affected_page_objects(self):
return Page.objects.filter(pk__in=(
self.instance.get_used_pages().values_list('variant_id', flat=True)
))
def get_template_names(self):
return [
'modeladmin/wagtail_personalisation/segment/delete.html',
'modeladmin/delete.html',
]
def delete_instance(self):
page_variants = self.get_affected_page_objects()
if not can_delete_pages(page_variants, self.request.user):
raise PermissionDenied(
'User has no permission to delete variant page objects.'
)
# Deleting page objects triggers deletion of the personalisation
# metadata too because of models.CASCADE.
with transaction.atomic():
for variant in page_variants.iterator():
# Delete each one separately so signals are called.
variant.delete()
super().delete_instance()
def post(self, request, *args, **kwargs):
if not can_delete_pages(self.get_affected_page_objects(),
self.request.user):
context = self.get_context_data(
cannot_delete_page_variants_error=True,
)
return self.render_to_response(context)
return super().post(request, *args, **kwargs)
@modeladmin_register
class SegmentModelAdmin(ModelAdmin):
"""The model admin for the Segments administration interface."""
model = Segment
index_view_class = SegmentModelIndexView
dashboard_view_class = SegmentModelDashboardView
delete_view_class = SegmentModelDeleteView
menu_icon = 'fa-snowflake-o'
add_to_settings_menu = False
list_display = ('name', 'persistent', 'match_any', 'status',
'page_count', 'variant_count', 'statistics')
index_view_extra_js = ['js/commons.js', 'js/index.js']
index_view_extra_css = ['css/index.css']
form_view_extra_js = ['js/commons.js', 'js/form.js',
'js/segment_form_control.js',
'wagtailadmin/js/page-chooser-modal.js',
'wagtailadmin/js/page-chooser.js']
form_view_extra_css = ['css/form.css']
def index_view(self, request):
kwargs = {'model_admin': self}
view_class = self.dashboard_view_class
request.session.setdefault('segment_view', 'dashboard')
if request.session['segment_view'] != 'dashboard':
view_class = self.index_view_class
return view_class.as_view(**kwargs)(request)
def page_count(self, obj):
return len(obj.get_used_pages())
def variant_count(self, obj):
return len(obj.get_created_variants())
def statistics(self, obj):
return _("{visits} visits in {days} days").format(
visits=obj.visit_count, days=obj.get_active_days())
def toggle_segment_view(request):
"""Toggle between the list view and dashboard view.
:param request: The http request
:type request: django.http.HttpRequest
:returns: A redirect to the original page
:rtype: django.http.HttpResponseRedirect
"""
if request.user.has_perm('wagtailadmin.access_admin'):
if request.session['segment_view'] == 'dashboard':
request.session['segment_view'] = 'list'
elif request.session['segment_view'] != 'dashboard':
request.session['segment_view'] = 'dashboard'
return HttpResponseRedirect(request.META.get('HTTP_REFERER', '/'))
return HttpResponseForbidden()
def toggle(request, segment_id):
"""Toggle the status of the selected segment.
:param request: The http request
:type request: django.http.HttpRequest
:param segment_id: The primary key of the segment
:type segment_id: int
:returns: A redirect to the original page
:rtype: django.http.HttpResponseRedirect
"""
if request.user.has_perm('wagtailadmin.access_admin'):
segment = get_object_or_404(Segment, pk=segment_id)
segment.toggle()
return HttpResponseRedirect(request.META.get('HTTP_REFERER', '/'))
return HttpResponseForbidden()
def copy_page_view(request, page_id, segment_id):
"""Copy page with selected segment. If the page for the selected segment
already exists the user will be redirected to that particular page.
:param request: The http request
:type request: django.http.HttpRequest
:param page_id: The primary key of the page
:type segment_id: int
:param segment_id: The primary key of the segment
:type segment_id: int
:returns: A redirect to the new page
:rtype: django.http.HttpResponseRedirect
"""
if request.user.has_perm('wagtailadmin.access_admin'):
segment = get_object_or_404(Segment, pk=segment_id)
page = get_object_or_404(Page, pk=page_id).specific
metadata = page.personalisation_metadata
variant_metadata = metadata.metadata_for_segments([segment])
if variant_metadata.exists():
variant = variant_metadata.first()
else:
variant = metadata.copy_for_segment(segment)
edit_url = reverse('wagtailadmin_pages:edit', args=[variant.id])
return HttpResponseRedirect(edit_url)
return HttpResponseForbidden()
# CSV download views
def segment_user_data(request, segment_id):
if request.user.has_perm('wagtailadmin.access_admin'):
segment = get_object_or_404(Segment, pk=segment_id)
response = HttpResponse(content_type='text/csv; charset=utf-8')
response['Content-Disposition'] = \
'attachment;filename=segment-%s-users.csv' % str(segment_id)
headers = ['Username']
for rule in segment.get_rules():
if rule.static:
headers.append(rule.get_column_header())
writer = csv.writer(response)
writer.writerow(headers)
for user in segment.static_users.all():
row = [user.username]
for rule in segment.get_rules():
if rule.static:
row.append(rule.get_user_info_string(user))
writer.writerow(row)
return response
return HttpResponseForbidden()