init

backend/gallery/admin.py

@@ -0,0 +1,89 @@
+from django.contrib import admin
+from django.utils.html import format_html
+
+from import_export.admin import ImportExportModelAdmin
+
+from gallery.models import Gallery
+from gallery.resources import GalleryResource
+from utils.admin import SoftDeleteListFilter, BaseModelAdmin
+
+@admin.register(Gallery)
+class GalleryAdmin(BaseModelAdmin, ImportExportModelAdmin):
+    resource_class = GalleryResource
+    list_display = ('title', 'image_preview', 'uploaded_by', 'file_size_display', 'dimensions', 'is_public', 'created_at')
+    list_filter = ('is_public', 'created_at', SoftDeleteListFilter)
+    search_fields = ('title', 'description', 'alt_text')
+    readonly_fields = ('uploaded_by', 'file_size', 'width', 'height', 'image_preview_large', 'markdown_url')
+    
+    fieldsets = (
+        ('Image Info', {
+            'fields': ('title', 'description', 'image', 'alt_text', 'is_public')
+        }),
+        ('Uploader', {
+            'fields': ('uploaded_by',),
+            'classes': ('collapse',)
+        }),
+        ('Metadata', {
+            'fields': ('file_size', 'width', 'height'),
+            'classes': ('collapse',)
+        }),
+        ('Preview & Usage', {
+            'fields': ('image_preview_large', 'markdown_url'),
+            'classes': ('collapse',)
+        }),
+        ('Soft Delete', {
+            'fields': ('is_deleted', 'deleted_at'),
+            'classes': ('collapse',)
+        }),
+    )
+    
+    actions = BaseModelAdmin.actions + ['make_public', 'make_private', 'restore_images']
+    
+    def image_preview(self, obj):
+        if obj.image:
+            return format_html(
+                '<img src="{}" style="width: 50px; height: 50px; object-fit: cover; border-radius: 4px;" />',
+                obj.image.url
+            )
+        return "No Image"
+    image_preview.short_description = "Preview"
+    
+    def image_preview_large(self, obj):
+        if obj.image:
+            return format_html(
+                '<img src="{}" style="max-width: 300px; max-height: 300px; object-fit: contain;" />',
+                obj.image.url
+            )
+        return "No Image"
+    image_preview_large.short_description = "Image Preview"
+    
+    def file_size_display(self, obj):
+        return f"{obj.file_size_mb} MB" if obj.file_size else "Unknown"
+    file_size_display.short_description = "File Size"
+    
+    def dimensions(self, obj):
+        if obj.width and obj.height:
+            return f"{obj.width} × {obj.height}"
+        return "Unknown"
+    dimensions.short_description = "Dimensions"
+    
+    def make_public(self, request, queryset):
+        queryset.update(is_public=True)
+        self.message_user(request, f"Made {queryset.count()} images public.")
+    make_public.short_description = "Make selected images public"
+    
+    def make_private(self, request, queryset):
+        queryset.update(is_public=False)
+        self.message_user(request, f"Made {queryset.count()} images private.")
+    make_private.short_description = "Make selected images private"
+    
+    def restore_images(self, request, queryset):
+        for image in queryset:
+            image.restore()
+        self.message_user(request, f"Restored {queryset.count()} images.")
+    restore_images.short_description = "Restore selected images"
+
+    def save_model(self, request, obj, form, change):
+        if not obj.uploaded_by_id:
+            obj.uploaded_by = request.user
+        super().save_model(request, obj, form, change)