Friday, October 22, 2021

Adding LogEntry to Django Admin

from django.contrib.admin.models import LogEntry, DELETION

from django.utils.html import escape

from django.urls import reverse

from django.utils.safestring import mark_safe



@admin.register(LogEntry)

class LogEntryAdmin(admin.ModelAdmin):

    date_hierarchy = 'action_time'


    list_filter = [

        'user',

        'content_type',

        'action_flag'

    ]


    search_fields = [

        'object_repr',

        'change_message'

    ]


    list_display = [

        'action_time',

        'user',

        'content_type',

        'object_link',

        'action_flag',

    ]


    def has_add_permission(self, request):

        return False


    def has_change_permission(self, request, obj=None):

        return False


    def has_delete_permission(self, request, obj=None):

        return False


    def has_view_permission(self, request, obj=None):

        return request.user.is_superuser


    def object_link(self, obj):

        if obj.action_flag == DELETION:

            link = escape(obj.object_repr)

        else:

            ct = obj.content_type

            link = '<a href="%s">%s</a>' % (

                reverse('admin:%s_%s_change' % (ct.app_label, ct.model), args=[obj.object_id]),

                escape(obj.object_repr),

            )

        return mark_safe(link)


    object_link.admin_order_field = "object_repr"

    object_link.short_description = "object"

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