feat: Implement comprehensive image storage and processing system

- Add ImageProcessor utility for automatic image resizing * Creates 4 versions: original, thumbnail (150x150), medium (400x400), large (800x800) * Uses LANCZOS algorithm for quality, JPEG quality 90 for optimization * Handles PNG transparency with white background * 90% file size reduction for thumbnails vs original - Add ImageService for URL generation * Dynamically computes paths based on original filename * Methods: get_thumbnail_url(), get_medium_url(), get_large_url(), get_original_url() * No additional database overhead - Update Photo models with automatic processing * ProductPhoto, ProductKitPhoto, ProductCategoryPhoto * Auto-creates all sizes on save * Auto-deletes all sizes on delete * Handles image replacement with cleanup - Enhance admin interface * Display all 4 image versions side-by-side in admin * Grid layout for easy comparison * Readonly preview fields - Add management command * process_images: batch process existing images * Support filtering by model type * Progress reporting and error handling - Clean database * Removed old migrations, rebuild from scratch * Clean SQLite database - Add comprehensive documentation * IMAGE_STORAGE_STRATEGY.md: full system architecture * QUICK_START_IMAGES.md: quick reference guide * IMAGE_SYSTEM_EXAMPLES.md: code examples for templates/views/API Performance metrics: * Original: 6.1K * Medium: 2.9K (52% smaller) * Large: 5.6K (8% smaller) * Thumbnail: 438B (93% smaller) 🤖 Generated with Claude Code Co-Authored-By: Claude <noreply@anthropic.com>
2025-10-22 16:09:15 +03:00
parent 85801c6c4a
commit 2b6acc5564
16 changed files with 2010 additions and 74 deletions
--- a/myproject/products/migrations/0001_initial.py
+++ b/myproject/products/migrations/0001_initial.py
@@ -1,4 +1,4 @@
-# Generated by Django 5.2.7 on 2025-10-21 14:41
+# Generated by Django 5.2.7 on 2025-10-22 13:03

 import django.db.models.deletion
 from django.db import migrations, models
@@ -43,7 +43,7 @@ class Migration(migrations.Migration):
            name='SKUCounter',
            fields=[
                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
-                ('counter_type', models.CharField(choices=[('product', 'Product Counter'), ('kit', 'Kit Counter')], max_length=20, unique=True, verbose_name='Тип счетчика')),
+                ('counter_type', models.CharField(choices=[('product', 'Product Counter'), ('kit', 'Kit Counter'), ('category', 'Category Counter')], max_length=20, unique=True, verbose_name='Тип счетчика')),
                ('current_value', models.IntegerField(default=0, verbose_name='Текущее значение')),
            ],
            options={
@@ -56,7 +56,8 @@ class Migration(migrations.Migration):
            fields=[
                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
                ('name', models.CharField(max_length=200, verbose_name='Название')),
-                ('slug', models.SlugField(max_length=200, unique=True, verbose_name='URL-идентификатор')),
+                ('sku', models.CharField(blank=True, db_index=True, max_length=100, null=True, unique=True, verbose_name='Артикул')),
+                ('slug', models.SlugField(blank=True, max_length=200, unique=True, verbose_name='URL-идентификатор')),
                ('is_active', models.BooleanField(default=True, verbose_name='Активна')),
                ('parent', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='children', to='products.productcategory', verbose_name='Родительская категория')),
            ],
@@ -93,7 +94,7 @@ class Migration(migrations.Migration):
            name='ProductCategoryPhoto',
            fields=[
                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
-                ('image', models.ImageField(upload_to='categories/', verbose_name='Фото')),
+                ('image', models.ImageField(upload_to='categories/originals/', verbose_name='Оригинальное фото')),
                ('order', models.PositiveIntegerField(default=0, verbose_name='Порядок')),
                ('created_at', models.DateTimeField(auto_now_add=True, verbose_name='Дата создания')),
                ('category', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='photos', to='products.productcategory', verbose_name='Категория')),
@@ -131,7 +132,7 @@ class Migration(migrations.Migration):
            name='ProductKitPhoto',
            fields=[
                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
-                ('image', models.ImageField(upload_to='kits/', verbose_name='Фото')),
+                ('image', models.ImageField(upload_to='kits/originals/', verbose_name='Оригинальное фото')),
                ('order', models.PositiveIntegerField(default=0, verbose_name='Порядок')),
                ('created_at', models.DateTimeField(auto_now_add=True, verbose_name='Дата создания')),
                ('kit', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='photos', to='products.productkit', verbose_name='Комплект')),
@@ -146,7 +147,7 @@ class Migration(migrations.Migration):
            name='ProductPhoto',
            fields=[
                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
-                ('image', models.ImageField(upload_to='products/', verbose_name='Фото')),
+                ('image', models.ImageField(upload_to='products/originals/', verbose_name='Оригинальное фото')),
                ('order', models.PositiveIntegerField(default=0, verbose_name='Порядок')),
                ('created_at', models.DateTimeField(auto_now_add=True, verbose_name='Дата создания')),
                ('product', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='photos', to='products.product', verbose_name='Товар')),
--- a/myproject/products/migrations/0002_productcategory_sku_alter_skucounter_counter_type.py
+++ b/myproject/products/migrations/0002_productcategory_sku_alter_skucounter_counter_type.py
@@ -1,23 +0,0 @@
-# Generated by Django 5.2.7 on 2025-10-21 17:25
-
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('products', '0001_initial'),
-    ]
-
-    operations = [
-        migrations.AddField(
-            model_name='productcategory',
-            name='sku',
-            field=models.CharField(blank=True, db_index=True, max_length=100, null=True, unique=True, verbose_name='Артикул'),
-        ),
-        migrations.AlterField(
-            model_name='skucounter',
-            name='counter_type',
-            field=models.CharField(choices=[('product', 'Product Counter'), ('kit', 'Kit Counter'), ('category', 'Category Counter')], max_length=20, unique=True, verbose_name='Тип счетчика'),
-        ),
-    ]
--- a/myproject/products/migrations/0003_alter_productcategory_slug.py
+++ b/myproject/products/migrations/0003_alter_productcategory_slug.py
@@ -1,18 +0,0 @@
-# Generated by Django 5.2.7 on 2025-10-21 19:05
-
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('products', '0002_productcategory_sku_alter_skucounter_counter_type'),
-    ]
-
-    operations = [
-        migrations.AlterField(
-            model_name='productcategory',
-            name='slug',
-            field=models.SlugField(blank=True, max_length=200, unique=True, verbose_name='URL-идентификатор'),
-        ),
-    ]