Admin - request.user

admin.py

# -*- coding: utf-8 -*-
from django.contrib import admin
from .models import Artigo

class ArtigoAdmin(admin.ModelAdmin):
    list_display = ['titulo', 'numero', 'data', 'usuario_editado_por']
    search_fields = ['titulo', 'numero',]
    list_filter = ['data']

    def save_model(self, request, obj, form, change):
        obj.usuario_editado_por = request.user
        obj.save()

admin.site.register(Artigo, ArtigoAdmin)