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from django.contrib import admin
from django.contrib.auth.admin import UserAdmin
from django.contrib.auth.models import User
from django.core.paginator import Paginator
from .models import Band, Child, Event, Parent, Swallow
site = admin.AdminSite(name="admin")
site.register(User, UserAdmin)
class CustomPaginator(Paginator):
def __init__(self, queryset, page_size, orphans=0, allow_empty_first_page=True):
super().__init__(queryset, 5, orphans=2, allow_empty_first_page=allow_empty_first_page)
class EventAdmin(admin.ModelAdmin):
date_hierarchy = 'date'
list_display = ['event_date_func']
@admin.display
def event_date_func(self, event):
return event.date
def has_add_permission(self, request):
return False
site.register(Event, EventAdmin)
class ParentAdmin(admin.ModelAdmin):
list_filter = ['child__name']
search_fields = ['child__name']
class ChildAdmin(admin.ModelAdmin):
list_display = ['name', 'parent']
list_per_page = 10
list_filter = ['parent', 'age']
def get_queryset(self, request):
return super().get_queryset(request).select_related("parent")
class CustomPaginationAdmin(ChildAdmin):
paginator = CustomPaginator
class FilteredChildAdmin(admin.ModelAdmin):
list_display = ['name', 'parent']
list_per_page = 10
def get_queryset(self, request):
return super().get_queryset(request).filter(name__contains='filtered')
class BandAdmin(admin.ModelAdmin):
list_filter = ['genres']
class NrOfMembersFilter(admin.SimpleListFilter):
title = 'number of members'
parameter_name = 'nr_of_members_partition'
def lookups(self, request, model_admin):
return [
('5', '0 - 5'),
('more', 'more than 5'),
]
def queryset(self, request, queryset):
value = self.value()
if value == '5':
return queryset.filter(nr_of_members__lte=5)
if value == 'more':
return queryset.filter(nr_of_members__gt=5)
class BandCallableFilterAdmin(admin.ModelAdmin):
list_filter = [NrOfMembersFilter]
site.register(Band, BandCallableFilterAdmin)
class GroupAdmin(admin.ModelAdmin):
list_filter = ['members']
class ConcertAdmin(admin.ModelAdmin):
list_filter = ['group__members']
search_fields = ['group__members__name']
class QuartetAdmin(admin.ModelAdmin):
list_filter = ['members']
class ChordsBandAdmin(admin.ModelAdmin):
list_filter = ['members']
class InvitationAdmin(admin.ModelAdmin):
list_display = ('band', 'player')
list_select_related = ('player',)
class DynamicListDisplayChildAdmin(admin.ModelAdmin):
list_display = ('parent', 'name', 'age')
def get_list_display(self, request):
my_list_display = super().get_list_display(request)
if request.user.username == 'noparents':
my_list_display = list(my_list_display)
my_list_display.remove('parent')
return my_list_display
class DynamicListDisplayLinksChildAdmin(admin.ModelAdmin):
list_display = ('parent', 'name', 'age')
list_display_links = ['parent', 'name']
def get_list_display_links(self, request, list_display):
return ['age']
site.register(Child, DynamicListDisplayChildAdmin)
class NoListDisplayLinksParentAdmin(admin.ModelAdmin):
list_display_links = None
list_display = ['name']
list_editable = ['name']
site.register(Parent, NoListDisplayLinksParentAdmin)
class SwallowAdmin(admin.ModelAdmin):
actions = None # prevent ['action_checkbox'] + list(list_display)
list_display = ('origin', 'load', 'speed', 'swallowonetoone')
list_editable = ['load', 'speed']
list_per_page = 3
site.register(Swallow, SwallowAdmin)
class DynamicListFilterChildAdmin(admin.ModelAdmin):
list_filter = ('parent', 'name', 'age')
def get_list_filter(self, request):
my_list_filter = super().get_list_filter(request)
if request.user.username == 'noparents':
my_list_filter = list(my_list_filter)
my_list_filter.remove('parent')
return my_list_filter
class DynamicSearchFieldsChildAdmin(admin.ModelAdmin):
search_fields = ('name',)
def get_search_fields(self, request):
search_fields = super().get_search_fields(request)
search_fields += ('age',)
return search_fields
class EmptyValueChildAdmin(admin.ModelAdmin):
empty_value_display = '-empty-'
list_display = ('name', 'age_display', 'age')
@admin.display(empty_value='†')
def age_display(self, obj):
return obj.age
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