Merge 8545f588249455f922d415a699e0526c779a1639 into 27a442b5ecef401a3ba2325383a96a09b0a983d9

README.md

@@ -1116,6 +1116,21 @@ type Product struct {
 }
 ```
 
+## Composite Foreign Primary Integer Keys
+
+```go
+type ProductStore struct {
+       ProductID    int64 `gorm:"primary_key;foreignkey"`
+       StoreID 		int64 `gorm:"primary_key;foreignkey"`
+	   Quantity		int
+}
+```
+
+When you declare a gorm primary key as foreign, there is likely no good use case for also auto incrementing the field.
+This disables the auto increment behavior when creating the table from gorm.
+
+
+
 ## Database Indexes & Foreign Key
 
 ```go

model_struct.go

@@ -350,6 +350,10 @@ func (scope *Scope) generateSqlTag(field *StructField) string {
 			autoIncrease = true
 		}
 
+		if field.IsPrimaryKey && field.IsForeignKey {
+			autoIncrease = false
+		}
+
 		sqlType = scope.Dialect().SqlTag(reflectValue, size, autoIncrease)
 	}