customisable statistics page

Author: ImToster

application/pay_parking/parking/admin.py

@@ -12,9 +12,10 @@
 from pay_parking.change_list import CustomChangeList
 from django.urls import reverse
 from django.utils.safestring import mark_safe
+from pay_parking.admin import CustomModelAdmin
 
 
-class ParkingAdmin(admin.ModelAdmin):
+class ParkingAdmin(CustomModelAdmin):
     list_display = (
         'parking_zone',
         'address',
@@ -47,16 +48,13 @@ def get_readonly_fields(self, request, obj=None):
             return ('available_lots', 'payments_link')
         else:
             return ()
-    
+
     @admin.display(description='Оплаты')
     def payments_link(self, parking):
         url = reverse("admin:paying_payment_changelist")
         url += f'?parking_id={parking.id}'
         link = f'<a href="{url}">Ссылка</a>'
         return mark_safe(link)
 
-    show_facets = admin.ShowFacets.NEVER
-    list_per_page = 10
-
 
 admin.site.register(Parking, ParkingAdmin)

application/pay_parking/pay_parking/admin.py

@@ -1,4 +1,10 @@
 from django.contrib import admin
+from django.urls import path
+from django.shortcuts import render
+from django.contrib.admin.views.main import ERROR_FLAG
+from django.template.response import SimpleTemplateResponse
+from django.contrib.admin.options import IncorrectLookupParameters
+from django.http import HttpResponseRedirect
 
 
 class UserSite(admin.AdminSite):
@@ -9,3 +15,40 @@ def has_permission(self, request):
 
 
 user_site = UserSite('')
+
+
+class CustomModelAdmin(admin.ModelAdmin):
+    show_facets = admin.ShowFacets.NEVER
+    list_per_page = 10
+
+    def get_urls(self):
+        info = self.opts.app_label, self.opts.model_name
+        new_urls = [
+            path(
+                'customisable_statistics/',
+                self.admin_site.admin_view(self.customisable_statistics),
+                name="%s_%s_customisable_statistics" % info
+            ),
+        ]
+        return new_urls + super().get_urls()
+
+    def customisable_statistics(self, request):
+        try:
+            cl = self.get_changelist_instance(request)
+        except IncorrectLookupParameters:
+            if ERROR_FLAG in request.GET:
+                return SimpleTemplateResponse(
+                    "admin/invalid_setup.html",
+                    {
+                        "title": _("Database error"),
+                    },
+                )
+            return HttpResponseRedirect(request.path + "?" + ERROR_FLAG + "=1")
+        queryset = cl.queryset  # уже отфильтрованный
+        
+        context = dict(
+            self.admin_site.each_context(request),
+            cl=cl,
+            title='Кастомизируемая статистика'
+        )
+        return render(request, "admin/customisable_statistics.html", context)

application/pay_parking/paying/admin.py

@@ -16,10 +16,12 @@
     MaxPricePerHourFilter, MinPricePerHourFilter
 )
 from pay_parking.filters import FakeFilterWithForm
-from django.shortcuts import render, get_object_or_404, redirect
+from django.shortcuts import get_object_or_404
 from .models import User, Parking
+from pay_parking.admin import CustomModelAdmin
 
-class PaymentAdmin(admin.ModelAdmin):
+
+class PaymentAdmin(CustomModelAdmin):
     # actions = None
     form = AdminPaymentForm
     list_display = (
@@ -92,8 +94,6 @@ def get_readonly_fields(self, request, obj=None):
         else:
             return ()
 
-    show_facets = admin.ShowFacets.NEVER
-    list_per_page = 10
 
     def get_changelist(self, request, **kwargs):
         change_list_class = CustomChangeList

application/pay_parking/templates/admin/change_list_object_tools.html

@@ -0,0 +1,12 @@
+{% extends 'admin/change_list_object_tools.html' %}
+
+{% load i18n admin_urls %}
+
+{% block object-tools-items %}
+  <li>
+    <a href="{% url cl.opts|admin_urlname:'customisable_statistics' %}" class="viewlink">
+      Кастомизируемая статистика
+    </a>
+  </li>
+  {{ block.super }}
+{% endblock %}

application/pay_parking/templates/admin/customisable_statistics.html

@@ -0,0 +1,41 @@
+{% extends 'admin/base_site.html' %}
+
+{% load i18n admin_list static admin_urls %}
+
+{% block extrastyle %}
+  {{ block.super }}
+  <link rel="stylesheet" href="{% static 'admin/css/changelists.css' %}" />
+{% endblock %}
+
+{% block content %}
+  <div id="content-main">
+    <div class="module{% if cl.has_filters %} filtered{% endif %}" id="changelist">
+      {% block filters %}
+        {% if cl.has_filters %}
+          <search id="changelist-filter" aria-labelledby="changelist-filter-header">
+            <h2 id="changelist-filter-header">{% translate 'Filter' %}</h2>
+            {% if cl.is_facets_optional or cl.has_active_filters %}
+              <div id="changelist-filter-extra-actions">
+                {% if cl.has_active_filters %}
+                  <h3><a href="{{ cl.clear_all_filters_qs }}">&#10006; {% translate 'Clear all filters' %}</a></h3>
+                {% endif %}
+              </div>
+            {% endif %}
+            {% for spec in cl.filter_specs %}
+              {% admin_list_filter cl spec %}
+            {% endfor %}
+          </search>
+        {% endif %}
+      {% endblock %}
+    </div>
+  </div>
+{% endblock %}
+
+{% block breadcrumbs %}
+  <div class="breadcrumbs">
+    <a href="{% url 'admin:index' %}">{% translate 'Home' %}</a>
+    &rsaquo; <a href="{% url 'admin:app_list' app_label=cl.opts.app_label %}">{{ cl.opts.app_config.verbose_name }}</a>
+    &rsaquo; <a href="{% url cl.opts|admin_urlname:'changelist' %}">{{ cl.opts.verbose_name_plural|capfirst }}</a>
+    &rsaquo; {{ title|capfirst }}
+  </div>
+{% endblock %}

application/pay_parking/users/admin.py

@@ -12,9 +12,10 @@
     MaxUpdatedAtFiler, MinUpdatedAtFiler,
     MaxLastLoginFiler, MinLastLoginFiler
 )
+from pay_parking.admin import CustomModelAdmin
 
 
-class UserAdmin(admin.ModelAdmin):
+class UserAdmin(CustomModelAdmin):
     form = CustomUserCreationForm
     list_display = (
         'email',
@@ -55,9 +56,6 @@ def get_changelist(self, request, **kwargs):
         change_list_class.filter_form_class = UserFilterForm
         return change_list_class
 
-    show_facets = admin.ShowFacets.NEVER
-    list_per_page = 10
-
 
 admin.site.register(User, UserAdmin)
 # admin.site.unregister(Group)