feat(backend): add blog publishing platform

apps/blog/admin.py

@@ -4,7 +4,7 @@ from django.contrib import admin
 from import_export.admin import ImportExportModelAdmin
 from simplemde.widgets import SimpleMDEEditor
 
-from apps.blog.models import Category, Tag, Post, Comment, Like
+from apps.blog.models import Category, Tag, Post, PostAsset, Comment, Like, SavedPost
 from apps.blog.resources import PostResource, CategoryResource
 from core.admin import SoftDeleteListFilter, BaseModelAdmin
 
@@ -72,7 +72,7 @@ class PostAdminForm(forms.ModelForm):
 class PostAdmin(BaseModelAdmin, ImportExportModelAdmin):
     form = PostAdminForm
     resource_class = PostResource
-    list_display = ('title', 'author', 'status', 'category', 'is_featured', 'published_at', 'created_at')
+    list_display = ('title', 'author', 'status', 'category', 'is_featured', 'submitted_at', 'published_at', 'created_at')
     list_filter = ('status', 'is_featured', 'category', 'tags', 'created_at', 'published_at', SoftDeleteListFilter)
     search_fields = ('title', 'content', 'author__username')
     prepopulated_fields = {'slug': ('title',)}
@@ -83,8 +83,11 @@ class PostAdmin(BaseModelAdmin, ImportExportModelAdmin):
         ('Content', {
             'fields': ('title', 'slug', 'content', 'excerpt', 'featured_image')
         }),
+        ('SEO', {
+            'fields': ('seo_title', 'seo_description', 'canonical_url', 'og_title', 'og_description', 'og_image', 'noindex', 'focus_keyword', 'reading_time')
+        }),
         ('Metadata', {
-            'fields': ('author', 'category', 'tags', 'status', 'is_featured', 'published_at')
+            'fields': ('author', 'category', 'tags', 'status', 'is_featured', 'submitted_at', 'reviewed_at', 'reviewed_by', 'review_note', 'published_at', 'published_by')
         }),
         ('Soft Delete', {
             'fields': ('is_deleted', 'deleted_at'),
@@ -92,12 +95,22 @@ class PostAdmin(BaseModelAdmin, ImportExportModelAdmin):
         }),
     )
     
-    readonly_fields = ('deleted_at',)
+    readonly_fields = ('deleted_at', 'content_html', 'reading_time')
 
-    actions = BaseModelAdmin.actions + ['make_published', 'make_draft', 'make_featured', 'restore_posts']
+    actions = BaseModelAdmin.actions + ['submit_for_review', 'request_changes', 'make_published', 'make_draft', 'make_featured', 'restore_posts']
+
+    def submit_for_review(self, request, queryset):
+        queryset.update(status='submitted')
+        self.message_user(request, f"Submitted {queryset.count()} posts for review.")
+    submit_for_review.short_description = "Submit selected posts for review"
+
+    def request_changes(self, request, queryset):
+        queryset.update(status='changes_requested', reviewed_by=request.user)
+        self.message_user(request, f"Requested changes on {queryset.count()} posts.")
+    request_changes.short_description = "Request changes on selected posts"
     
     def make_published(self, request, queryset):
-        queryset.update(status='published')
+        queryset.update(status='published', published_by=request.user)
         self.message_user(request, f"Published {queryset.count()} posts.")
     make_published.short_description = "Mark selected posts as published"
     
@@ -129,7 +142,7 @@ class CommentAdmin(BaseModelAdmin):
             'fields': ('post', 'author', 'content')
         }),
         ('Metadata', {
-            'fields': ('is_approved', 'created_at', 'updated_at')
+            'fields': ('is_approved', 'hidden_by', 'hidden_at', 'moderation_note', 'created_at', 'updated_at')
         }),
         ('Soft Delete', {
             'fields': ('is_deleted', 'deleted_at'),
@@ -153,7 +166,22 @@ class CommentAdmin(BaseModelAdmin):
     disapprove_comments.short_description = "Disapprove selected comments"
 
 @admin.register(Like)
-class LikeAdmin(BaseModelAdmin):
+class LikeAdmin(admin.ModelAdmin):
     list_display = ('user', 'post', 'created_at')
     list_filter = ('created_at', 'post')
     search_fields = ('user__username', 'post__title')
+
+
+@admin.register(SavedPost)
+class SavedPostAdmin(admin.ModelAdmin):
+    list_display = ('user', 'post', 'created_at')
+    list_filter = ('created_at', 'post')
+    search_fields = ('user__username', 'post__title')
+
+
+@admin.register(PostAsset)
+class PostAssetAdmin(BaseModelAdmin):
+    list_display = ('title', 'post', 'file_type', 'mime_type', 'size', 'uploaded_by', 'created_at')
+    list_filter = ('file_type', 'mime_type', 'created_at')
+    search_fields = ('title', 'caption', 'alt_text', 'post__title', 'uploaded_by__username')
+    readonly_fields = ('size', 'mime_type', 'created_at', 'updated_at', 'deleted_at')