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Descrizione
Bun version: v1.2.11 Driver: pgdriver v1.2.11
I have an issue writing a query with a m2m relation when the member is a struct with the bun:",extend" struct tag:
type Wrapper struct {
Order bun:",extend"
Number string
}
type Order struct {
bun.BaseModel
Id int bun:",pk,autoincrement"
Items []Item bun:"m2m:order_to_items,join:Order=Item"
}
type Item struct {
bun.BaseModel
Id int bun:",pk,autoincrement"
Name string
}
type OrderToItem struct {
bun.BaseModel
OrderId int
Order *Order bun:"rel:belongs-to,join:order_id=id"
ItemId int
Item *Item bun:"rel:belongs-to,join:item_id=id"
}
order := model.Wrapper{
Number: "Invoice-1",
}
_, err := d.NewInsert().
Model(&order).
Exec(t.Context())
assert.NoError(err)
items := []model.Item{
{Name: "itemA"},
{Name: "itemB"},
}
_, err = d.NewInsert().
Model(&items).
Exec(t.Context())
assert.NoError(err)
_, err = d.NewInsert().
Model(&[]model.OrderToItem{
{
OrderId: order.Id,
ItemId: items[0].Id,
},
{
OrderId: order.Id,
ItemId: items[1].Id,
},
}).
Exec(t.Context())
assert.NoError(err)
var saved model.Wrapper
err = d.NewSelect().
Model(&saved).
Relation("Items").
Scan(t.Context())
assert.NoError(err)
There is a panic panic: reflect: call of reflect.Value.Int on string Value
It works if I use the Order type directly instead of Wrapper
Here the stacktrace:
panic: reflect: call of reflect.Value.Int on string Value [recovered]
panic: reflect: call of reflect.Value.Int on string Value
goroutine 8 [running]:
testing.tRunner.func1.2({0xa81040, 0xc00039c648})
/usr/local/go/src/testing/testing.go:1734 +0x21c
testing.tRunner.func1()
/usr/local/go/src/testing/testing.go:1737 +0x35e
panic({0xa81040?, 0xc00039c648?})
/usr/local/go/src/runtime/panic.go:792 +0x132
reflect.Value.Int(...)
/usr/local/go/src/reflect/value.go:1465
github.com/uptrace/bun/schema.isZeroInt({0xa640a0?, 0xc0005040e0?, 0x4043b9?})
app/vendor/github.com/uptrace/bun/schema/zerochecker.go:138 +0xa5
github.com/uptrace/bun/schema.(*Field).AppendValue(0xc00031a780, {{0x12ee4b8?, 0xc00039cd50?}, 0x0?}, {0xc0001c87e0, 0x4d, 0x60}, {0xacfd60, 0xc0005040c0, 0x199})
app/vendor/github.com/uptrace/bun/schema/field.go:107 +0x14e
github.com/uptrace/bun.appendChildValues.func1({0xacfd60?, 0xc0005040c0?, 0x5?})
app/vendor/github.com/uptrace/bun/relation_join.go:372 +0x2c5
github.com/uptrace/bun.visitField({0xacfd60?, 0xc0005040c0?, 0x0?}, {0xc0005031c0, 0x0, 0x2}, 0xc0000ef948)
app/vendor/github.com/uptrace/bun/util.go:43 +0xcf
github.com/uptrace/bun.walk({0xacfd60?, 0xc0005040c0?, 0x7fe33c1ca7f0?}, {0xc0005031c0, 0x0, 0x2}, 0xc0000ef948)
app/vendor/github.com/uptrace/bun/util.go:30 +0x9f
github.com/uptrace/bun.appendChildValues({{0x12ee4b8?, 0xc00039cd50?}, 0x0?}, {0xc0001c87e0, 0x4d, 0x60}, {0xacfd60?, 0xc0005040c0?, 0x3f?}, {0xc0005031c0, ...}, ...)
app/vendor/github.com/uptrace/bun/relation_join.go:362 +0x1d1
github.com/uptrace/bun.(*relationJoin).m2mQuery(0xc00020e0e0, 0xc0003005a0)
app/vendor/github.com/uptrace/bun/relation_join.go:216 +0xa28
github.com/uptrace/bun.(*relationJoin).selectM2M(0x47243a?, {0x12e9500, 0xc000276eb0}, 0x12e6038?)
app/vendor/github.com/uptrace/bun/relation_join.go:172 +0x25
github.com/uptrace/bun.(*SelectQuery).selectJoins(0xc0003003c0, {0x12e9500, 0xc000276eb0}, {0xc00020e0e0, 0x1, 0xc0003003c0?})
app/vendor/github.com/uptrace/bun/query_select.go:484 +0x254
github.com/uptrace/bun.(*SelectQuery).scanResult(0xc0003003c0, {0x12e9500, 0xc000276eb0}, {0x0?, 0x0, 0x0?})
vendor/github.com/uptrace/bun/query_select.go:898 +0x36b
github.com/uptrace/bun.(*SelectQuery).Scan(...)
vendor/github.com/uptrace/bun/query_select.go:849