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python-blog/articles/admin.py

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import copy
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from django.contrib import admin, messages
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from django.contrib.admin import register
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from django.contrib.auth.admin import UserAdmin
from django.shortcuts import redirect
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from .models import Article, Page, User
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admin.site.register(User, UserAdmin)
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@register(Article)
class ArticleAdmin(admin.ModelAdmin):
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ordering = ["status", "-published_at"]
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list_display = [
"title",
"status",
"author",
"created_at",
"published_at",
"updated_at",
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"views_count",
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]
list_display_links = ["title"]
list_filter = ["status"]
date_hierarchy = "created_at"
fieldsets = [
(
"Metadata",
{
"fields": [
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("title", "slug"),
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("author",),
("status", "published_at"),
("created_at", "updated_at"),
"views_count",
]
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},
),
("Content", {"fields": ("content",)}),
]
readonly_fields = [
"created_at",
"updated_at",
"views_count",
"status",
"published_at",
]
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prepopulated_fields = {"slug": ("title",)}
change_form_template = "articles/article_change_form.html"
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def publish(self, request, queryset):
if not request.user.has_perm("articles.change_article"):
messages.warning(request, "You're not allowed to do this.")
return
for article in queryset:
article.publish()
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messages.success(request, f"{len(queryset)} articles published.")
publish.short_description = "Publish selected articles"
def unpublish(self, request, queryset):
if not request.user.has_perm("articles.change_article"):
messages.warning(request, "You're not allowed to do this.")
return
for article in queryset:
article.unpublish()
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messages.success(request, f"{len(queryset)} articles unpublished.")
unpublish.short_description = "Unpublish selected articles"
actions = [publish, unpublish]
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class Media:
css = {"all": ("admin_articles.css",)}
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def response_post_save_add(self, request, obj: Article):
if "_preview" in request.POST:
return redirect("article-detail", slug=obj.slug)
return super().response_post_save_add(request, obj)
def response_change(self, request, obj: Article):
if "_preview" in request.POST:
obj.save()
return redirect("article-detail", slug=obj.slug)
if "_publish" in request.POST:
obj.publish()
messages.success(request, "Item has been published")
return redirect(".")
if "_unpublish" in request.POST:
obj.unpublish()
messages.success(request, "Item has been unpublished")
return redirect(".")
return super().response_change(request, obj)
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@register(Page)
class PageAdmin(ArticleAdmin):
list_display = ["position"] + ArticleAdmin.list_display
def get_fieldsets(self, request, obj=None):
article_fieldsets = ArticleAdmin.fieldsets
article_fieldsets[0][1]["fields"][0] = ("title", "slug", "position")
return article_fieldsets