Fix: CSV import now creates ProductVariants instead of ProductMultiBuys
CRITICAL BUG FIX: Orders were totaling £0 because imported products had: - Base price set to £0 - Variants stored as ProductMultiBuys (not ProductVariants) - Order creation couldn't find variant prices → used base price of £0 Changes: - CSV import now detects format: semicolons (;) = variants, colons (:) = multi-buys - Added ImportProductVariantsAsync() to handle pipe-delimited variant format - Format: "value; price; stock|value; price; stock" (e.g., "10; 30.00; 100|25; 70.00; 50") - Updated CSV export to prioritize ProductVariants over MultiBuys - Updated CSV template with correct variant format examples - Added comprehensive documentation in VARIANT_CSV_FORMAT.md Migration Required: - Existing products with incorrect MultiBuy data need re-import - Convert format from "name:qty:price;name:qty:price" to "value; price; stock|value; price; stock" - Ensure base price is 0 for variant-based products 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
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@ -233,7 +233,17 @@ public class ProductImportService : IProductImportService
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// Import variations if provided
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if (!string.IsNullOrEmpty(importDto.Variations))
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{
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await ImportProductMultiBuysAsync(product.Id, importDto.Variations);
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// Check format: if it contains semicolons with 3 parts, treat as variants
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// Format: "10; 30.00; 100|25; 70.00; 50" (value; price; stock)
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// Old multi-buy format: "Single Item:1:10.00;Twin Pack:2:19.00" (name:quantity:price)
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if (importDto.Variations.Contains(';'))
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{
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await ImportProductVariantsAsync(product.Id, importDto.Variations);
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}
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else
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{
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await ImportProductMultiBuysAsync(product.Id, importDto.Variations);
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}
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}
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// Import photos if provided
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@ -256,6 +266,42 @@ public class ProductImportService : IProductImportService
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}
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}
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private async Task ImportProductVariantsAsync(Guid productId, string variationsText)
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{
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// Format: "10; 30.00; 100|25; 70.00; 50|50; 130.00; 25" (value; price; stock separated by |)
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var variations = variationsText.Split('|', StringSplitOptions.RemoveEmptyEntries);
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for (int i = 0; i < variations.Length; i++)
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{
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var parts = variations[i].Split(';', StringSplitOptions.RemoveEmptyEntries);
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if (parts.Length >= 3)
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{
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var variantValue = parts[0].Trim();
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var priceOverride = decimal.Parse(parts[1].Trim(), CultureInfo.InvariantCulture);
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var stockQuantity = int.Parse(parts[2].Trim());
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// Determine variant type based on the value format
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string variantType = variantValue.ToLower().Contains("g") ? "Weight" : "Quantity";
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var variantDto = new CreateProductVariantDto
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{
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ProductId = productId,
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Name = variantValue,
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Price = priceOverride,
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StockLevel = stockQuantity,
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SortOrder = i,
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VariantType = variantType
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};
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_logger.LogInformation(
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"CSV Import: Creating variant for product {ProductId}: Name={Name}, Price={Price}, Stock={Stock}",
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productId, variantValue, priceOverride, stockQuantity);
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await _productService.CreateProductVariantAsync(variantDto);
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}
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}
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}
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private async Task ImportProductMultiBuysAsync(Guid productId, string variationsText)
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{
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// Format: "Single Item:1:10.00;Twin Pack:2:19.00;Triple Pack:3:25.00"
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@ -306,10 +352,10 @@ public class ProductImportService : IProductImportService
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// Header
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sb.AppendLine("Name,Description,Price,Weight,WeightUnit,StockQuantity,CategoryName,IsActive,Variations,PhotoUrls");
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// Example rows
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sb.AppendLine("\"Example Product 1\",\"High-quality example product with great features\",29.99,150,Grams,50,Electronics,true,\"Single Item:1:29.99;Twin Pack:2:55.00;Triple Pack:3:79.99\",\"https://example.com/photo1.jpg;https://example.com/photo2.jpg\"");
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sb.AppendLine("\"Example Product 2\",\"Another sample product for import testing\",19.99,200,Grams,25,Clothing,true,\"Individual:1:19.99;Pair:2:35.00\",\"\"");
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sb.AppendLine("\"Simple Product\",\"Basic product without variations\",9.99,100,Grams,100,Books,true,\"\",\"\"");
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// Example rows with ProductVariant format (value; price; stock | separated)
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sb.AppendLine("\"Example Product 1\",\"High-quality product with quantity-based variants\",0,150,Grams,0,Electronics,true,\"10; 30.00; 100|25; 70.00; 50|50; 130.00; 25\",\"https://example.com/photo1.jpg\"");
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sb.AppendLine("\"Example Product 2\",\"Product with weight-based variants\",0,200,Grams,0,Clothing,true,\"3.5g; 35.00; 10|7g; 65.00; 8|14g; 120.00; 5\",\"\"");
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sb.AppendLine("\"Simple Product\",\"Basic product without variations (set price and stock)\",9.99,100,Grams,100,Books,true,\"\",\"\"");
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return sb.ToString();
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}
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@ -324,9 +370,21 @@ public class ProductImportService : IProductImportService
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foreach (var product in products)
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{
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// Build variations string
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var variationsText = string.Join(";", product.MultiBuys.OrderBy(v => v.SortOrder)
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.Select(v => $"{v.Name}:{v.Quantity}:{v.Price:F2}"));
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// Build variations string - prioritize ProductVariants over MultiBuys
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string variationsText = "";
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if (product.Variants != null && product.Variants.Any())
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{
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// Export ProductVariants format: "value; price; stock|value; price; stock"
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variationsText = string.Join("|", product.Variants.OrderBy(v => v.SortOrder)
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.Select(v => $"{v.Name}; {v.Price:F2}; {v.StockLevel}"));
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}
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else if (product.MultiBuys != null && product.MultiBuys.Any())
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{
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// Legacy MultiBuys format: "name:quantity:price;name:quantity:price"
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variationsText = string.Join(";", product.MultiBuys.OrderBy(v => v.SortOrder)
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.Select(v => $"{v.Name}:{v.Quantity}:{v.Price:F2}"));
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}
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// Build photo URLs string
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var photoUrlsText = string.Join(";", product.Photos.OrderBy(p => p.SortOrder)
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101
VARIANT_CSV_FORMAT.md
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101
VARIANT_CSV_FORMAT.md
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@ -0,0 +1,101 @@
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# Product Variant CSV Import Format
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## Overview
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As of the latest update, the CSV import system now correctly creates **ProductVariant** records instead of ProductMultiBuy records when using semicolon-delimited variations.
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## CSV Column Format
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```csv
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Name,Description,Price,Weight,WeightUnit,StockQuantity,CategoryName,IsActive,Variations,PhotoUrls
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```
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### Product Base Price and Stock
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- Set `Price` to **0** if using variants (variant prices override base price)
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- Set `StockQuantity` to **0** if using variants (variant stock is tracked separately)
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## Variations Column Format
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### ProductVariant Format (Recommended)
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Use pipe `|` to separate multiple variants, semicolons `;` to separate the three required parts:
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```
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"value; price; stock|value; price; stock|value; price; stock"
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```
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**Format Components:**
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- `value`: Variant name/value (e.g., "10", "25", "3.5g", "7g")
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- `price`: Price for this variant as decimal (e.g., 30.00)
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- `stock`: Stock level for this variant as integer (e.g., 100)
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**Example - Quantity-based variants:**
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```csv
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"Buprenorphine 2mg",0,150,Grams,0,Pharmaceuticals,true,"10; 30.00; 100|25; 70.00; 50|50; 130.00; 25",""
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```
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This creates:
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- Variant "10" at £30.00 with 100 in stock
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- Variant "25" at £70.00 with 50 in stock
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- Variant "50" at £130.00 with 25 in stock
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**Example - Weight-based variants:**
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```csv
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"Cannabis Flower",0,200,Grams,0,Botanicals,true,"3.5g; 35.00; 10|7g; 65.00; 8|14g; 120.00; 5",""
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```
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This creates:
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- Variant "3.5g" at £35.00 with 10 in stock
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- Variant "7g" at £65.00 with 8 in stock
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- Variant "14g" at £120.00 with 5 in stock
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### Legacy ProductMultiBuy Format (Still Supported)
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Old multi-buy format using colons `:` (no semicolons):
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```
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"Name:Quantity:Price;Name:Quantity:Price"
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```
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**Example:**
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```csv
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"Example Product",29.99,150,Grams,50,Electronics,true,"Single:1:29.99;Twin Pack:2:55.00",""
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```
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## Variant Type Detection
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The system automatically determines variant type based on the value:
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- Contains "g" (grams): **Weight** variant type
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- Otherwise: **Quantity** variant type
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## CSV Import Behavior
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1. **Semicolon Detection**: If the Variations column contains semicolons (`;`), it's treated as ProductVariant format
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2. **Colon-Only Format**: If only colons (`:`) are present, it's treated as legacy ProductMultiBuy format
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3. **Empty Variations**: Product uses base Price and StockQuantity
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## Exporting Products
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When exporting products to CSV:
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- Products with **ProductVariants** export in the pipe-delimited format: `"value; price; stock|value; price; stock"`
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- Products with **ProductMultiBuys** export in the legacy colon format: `"name:qty:price;name:qty:price"`
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## Template Download
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Download the CSV template from Admin Panel → Products → Import CSV → Download Template to see the correct format with examples.
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## Migration from Old Format
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If you previously imported products using the old format (semicolons but creating MultiBuys), you'll need to:
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1. Delete existing products with incorrect MultiBuy data
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2. Re-import using the corrected pipe-delimited format shown above
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3. Ensure product base `Price` is set to 0 when using variants
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## Order Creation
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When customers order products with variants:
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- **TeleBot** automatically passes the `ProductVariantId` to the order API
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- **OrderService** uses the variant's `Price` property to calculate the order total
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- If variant `Price` is null, it falls back to product base price (which should be 0 for variant-based products)
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## Technical Implementation
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See `ProductImportService.cs`:
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- `ImportProductVariantsAsync()`: Handles pipe-delimited variant format
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- `ImportProductMultiBuysAsync()`: Handles legacy colon-delimited multi-buy format
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- Detection logic at line ~239
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