fix: support allowzero on the soft delete field

internal/dbtest/query_test.go

@@ -37,11 +37,20 @@ func TestQuery(t *testing.T) {
 		User   *User `bun:"rel:belongs-to"`
 	}
 
-	type SoftDelete struct {
+	type SoftDelete1 struct {
+		bun.BaseModel `bun:"soft_deletes,alias:soft_delete"`
+
 		ID        int64
 		DeletedAt time.Time `bun:",soft_delete"`
 	}
 
+	type SoftDelete2 struct {
+		bun.BaseModel `bun:"soft_deletes,alias:soft_delete"`
+
+		ID        int64
+		DeletedAt time.Time `bun:",soft_delete,allowzero"`
+	}
+
 	queries := []func(db *bun.DB) schema.QueryAppender{
 		func(db *bun.DB) schema.QueryAppender {
 			return db.NewValues(&Model{42, "hello"})
@@ -403,19 +412,19 @@ func TestQuery(t *testing.T) {
 			return db.NewUpdate().Model(new(Model)).Value("foo", "?", "bar").WherePK()
 		},
 		func(db *bun.DB) schema.QueryAppender {
-			return db.NewDelete().Model(new(SoftDelete)).WherePK()
+			return db.NewDelete().Model(new(SoftDelete1)).WherePK()
 		},
 		func(db *bun.DB) schema.QueryAppender {
-			return db.NewDelete().Model(new(SoftDelete)).WherePK().ForceDelete()
+			return db.NewDelete().Model(new(SoftDelete1)).WherePK().ForceDelete()
 		},
 		func(db *bun.DB) schema.QueryAppender {
-			return db.NewSelect().Model(new(SoftDelete))
+			return db.NewSelect().Model(new(SoftDelete1))
 		},
 		func(db *bun.DB) schema.QueryAppender {
-			return db.NewSelect().Model(new(SoftDelete)).WhereDeleted()
+			return db.NewSelect().Model(new(SoftDelete1)).WhereDeleted()
 		},
 		func(db *bun.DB) schema.QueryAppender {
-			return db.NewSelect().Model(new(SoftDelete)).WhereAllWithDeleted()
+			return db.NewSelect().Model(new(SoftDelete1)).WhereAllWithDeleted()
 		},
 		func(db *bun.DB) schema.QueryAppender {
 			models := []Model{
@@ -552,7 +561,7 @@ func TestQuery(t *testing.T) {
 			return db.NewInsert().Model(new(Model))
 		},
 		func(db *bun.DB) schema.QueryAppender {
-			return db.NewInsert().Model(new(SoftDelete)).On("CONFLICT DO NOTHING")
+			return db.NewInsert().Model(new(SoftDelete1)).On("CONFLICT DO NOTHING")
 		},
 		func(db *bun.DB) schema.QueryAppender {
 			return db.NewUpdate().Model(&Model{ID: 42}).OmitZero().WherePK()
@@ -567,6 +576,24 @@ func TestQuery(t *testing.T) {
 		func(db *bun.DB) schema.QueryAppender {
 			return db.NewInsert().ColumnExpr("id, name").Table("dest").Table("src")
 		},
+		func(db *bun.DB) schema.QueryAppender {
+			return db.NewDelete().Model(new(SoftDelete2)).WherePK()
+		},
+		func(db *bun.DB) schema.QueryAppender {
+			return db.NewDelete().Model(new(SoftDelete2)).WherePK().ForceDelete()
+		},
+		func(db *bun.DB) schema.QueryAppender {
+			return db.NewSelect().Model(new(SoftDelete2))
+		},
+		func(db *bun.DB) schema.QueryAppender {
+			return db.NewSelect().Model(new(SoftDelete2)).WhereDeleted()
+		},
+		func(db *bun.DB) schema.QueryAppender {
+			return db.NewSelect().Model(new(SoftDelete2)).WhereAllWithDeleted()
+		},
+		func(db *bun.DB) schema.QueryAppender {
+			return db.NewInsert().Model(new(SoftDelete2)).On("CONFLICT DO NOTHING")
+		},
 	}
 
 	timeRE := regexp.MustCompile(`'\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}\.\d+(\+\d{2}:\d{2})?'`)

internal/dbtest/soft_delete_test.go

@@ -2,8 +2,6 @@ package dbtest_test
 
 import (
 	"context"
-	"database/sql"
-	"database/sql/driver"
 	"testing"
 	"time"
 
@@ -32,27 +30,6 @@ func TestSoftDelete(t *testing.T) {
 	})
 }
 
-type CustomTime struct {
-	Time time.Time
-}
-
-var _ driver.Valuer = (*CustomTime)(nil)
-
-func (tm *CustomTime) Value() (driver.Value, error) {
-	return tm.Time, nil
-}
-
-var _ sql.Scanner = (*CustomTime)(nil)
-
-func (tm *CustomTime) Scan(src interface{}) error {
-	tm.Time, _ = src.(time.Time)
-	return nil
-}
-
-func (tm *CustomTime) IsZero() bool {
-	return tm.Time.IsZero()
-}
-
 type Video struct {
 	ID        int64
 	Name      string

internal/dbtest/testdata/snapshots/TestQuery-mysql5-90

@@ -0,0 +1 @@
+UPDATE `soft_deletes` AS `soft_delete` SET `soft_delete`.`deleted_at` = [TIME] WHERE `soft_delete`.`deleted_at` = '0001-01-01 00:00:00' AND (`soft_delete`.`id` = NULL)

internal/dbtest/testdata/snapshots/TestQuery-mysql5-91

@@ -0,0 +1 @@
+DELETE FROM `soft_deletes` WHERE `deleted_at` != '0001-01-01 00:00:00' AND (`id` = NULL)

internal/dbtest/testdata/snapshots/TestQuery-mysql5-92

@@ -0,0 +1 @@
+SELECT `soft_delete`.`id`, `soft_delete`.`deleted_at` FROM `soft_deletes` AS `soft_delete` WHERE `soft_delete`.`deleted_at` = '0001-01-01 00:00:00'

internal/dbtest/testdata/snapshots/TestQuery-mysql5-93

@@ -0,0 +1 @@
+SELECT `soft_delete`.`id`, `soft_delete`.`deleted_at` FROM `soft_deletes` AS `soft_delete` WHERE `soft_delete`.`deleted_at` != '0001-01-01 00:00:00'

internal/dbtest/testdata/snapshots/TestQuery-mysql5-94

@@ -0,0 +1 @@
+SELECT `soft_delete`.`id`, `soft_delete`.`deleted_at` FROM `soft_deletes` AS `soft_delete`

internal/dbtest/testdata/snapshots/TestQuery-mysql5-95

@@ -0,0 +1 @@
+INSERT INTO `soft_deletes` (`id`, `deleted_at`) VALUES (DEFAULT, '0001-01-01 00:00:00') ON CONFLICT DO NOTHING

internal/dbtest/testdata/snapshots/TestQuery-mysql8-90

@@ -0,0 +1 @@
+UPDATE `soft_deletes` AS `soft_delete` SET `soft_delete`.`deleted_at` = [TIME] WHERE `soft_delete`.`deleted_at` = '0001-01-01 00:00:00' AND (`soft_delete`.`id` = NULL)

internal/dbtest/testdata/snapshots/TestQuery-mysql8-91

@@ -0,0 +1 @@
+DELETE FROM `soft_deletes` AS `soft_delete` WHERE `soft_delete`.`deleted_at` != '0001-01-01 00:00:00' AND (`soft_delete`.`id` = NULL)

internal/dbtest/testdata/snapshots/TestQuery-mysql8-92

@@ -0,0 +1 @@
+SELECT `soft_delete`.`id`, `soft_delete`.`deleted_at` FROM `soft_deletes` AS `soft_delete` WHERE `soft_delete`.`deleted_at` = '0001-01-01 00:00:00'

internal/dbtest/testdata/snapshots/TestQuery-mysql8-93

@@ -0,0 +1 @@
+SELECT `soft_delete`.`id`, `soft_delete`.`deleted_at` FROM `soft_deletes` AS `soft_delete` WHERE `soft_delete`.`deleted_at` != '0001-01-01 00:00:00'

internal/dbtest/testdata/snapshots/TestQuery-mysql8-94

@@ -0,0 +1 @@
+SELECT `soft_delete`.`id`, `soft_delete`.`deleted_at` FROM `soft_deletes` AS `soft_delete`

internal/dbtest/testdata/snapshots/TestQuery-mysql8-95

@@ -0,0 +1 @@
+INSERT INTO `soft_deletes` (`id`, `deleted_at`) VALUES (DEFAULT, '0001-01-01 00:00:00') ON CONFLICT DO NOTHING

internal/dbtest/testdata/snapshots/TestQuery-pg-90

@@ -0,0 +1 @@
+UPDATE "soft_deletes" AS "soft_delete" SET "deleted_at" = [TIME] WHERE "soft_delete"."deleted_at" = '0001-01-01 00:00:00+00:00' AND ("soft_delete"."id" = NULL)

internal/dbtest/testdata/snapshots/TestQuery-pg-91

@@ -0,0 +1 @@
+DELETE FROM "soft_deletes" AS "soft_delete" WHERE "soft_delete"."deleted_at" != '0001-01-01 00:00:00+00:00' AND ("soft_delete"."id" = NULL)

internal/dbtest/testdata/snapshots/TestQuery-pg-92

@@ -0,0 +1 @@
+SELECT "soft_delete"."id", "soft_delete"."deleted_at" FROM "soft_deletes" AS "soft_delete" WHERE "soft_delete"."deleted_at" = '0001-01-01 00:00:00+00:00'

internal/dbtest/testdata/snapshots/TestQuery-pg-93

@@ -0,0 +1 @@
+SELECT "soft_delete"."id", "soft_delete"."deleted_at" FROM "soft_deletes" AS "soft_delete" WHERE "soft_delete"."deleted_at" != '0001-01-01 00:00:00+00:00'

internal/dbtest/testdata/snapshots/TestQuery-pg-94

@@ -0,0 +1 @@
+SELECT "soft_delete"."id", "soft_delete"."deleted_at" FROM "soft_deletes" AS "soft_delete"

internal/dbtest/testdata/snapshots/TestQuery-pg-95

@@ -0,0 +1 @@
+INSERT INTO "soft_deletes" AS "soft_delete" ("id", "deleted_at") VALUES (DEFAULT, '0001-01-01 00:00:00+00:00') ON CONFLICT DO NOTHING RETURNING "id"

internal/dbtest/testdata/snapshots/TestQuery-pgx-90

@@ -0,0 +1 @@
+UPDATE "soft_deletes" AS "soft_delete" SET "deleted_at" = [TIME] WHERE "soft_delete"."deleted_at" = '0001-01-01 00:00:00+00:00' AND ("soft_delete"."id" = NULL)

internal/dbtest/testdata/snapshots/TestQuery-pgx-91

@@ -0,0 +1 @@
+DELETE FROM "soft_deletes" AS "soft_delete" WHERE "soft_delete"."deleted_at" != '0001-01-01 00:00:00+00:00' AND ("soft_delete"."id" = NULL)

internal/dbtest/testdata/snapshots/TestQuery-pgx-92

@@ -0,0 +1 @@
+SELECT "soft_delete"."id", "soft_delete"."deleted_at" FROM "soft_deletes" AS "soft_delete" WHERE "soft_delete"."deleted_at" = '0001-01-01 00:00:00+00:00'

internal/dbtest/testdata/snapshots/TestQuery-pgx-93

@@ -0,0 +1 @@
+SELECT "soft_delete"."id", "soft_delete"."deleted_at" FROM "soft_deletes" AS "soft_delete" WHERE "soft_delete"."deleted_at" != '0001-01-01 00:00:00+00:00'

internal/dbtest/testdata/snapshots/TestQuery-pgx-94

@@ -0,0 +1 @@
+SELECT "soft_delete"."id", "soft_delete"."deleted_at" FROM "soft_deletes" AS "soft_delete"

internal/dbtest/testdata/snapshots/TestQuery-pgx-95

@@ -0,0 +1 @@
+INSERT INTO "soft_deletes" AS "soft_delete" ("id", "deleted_at") VALUES (DEFAULT, '0001-01-01 00:00:00+00:00') ON CONFLICT DO NOTHING RETURNING "id"

internal/dbtest/testdata/snapshots/TestQuery-sqlite-90

@@ -0,0 +1 @@
+UPDATE "soft_deletes" AS "soft_delete" SET "deleted_at" = [TIME] WHERE "soft_delete"."deleted_at" = '0001-01-01 00:00:00+00:00' AND ("soft_delete"."id" = NULL)

internal/dbtest/testdata/snapshots/TestQuery-sqlite-91

@@ -0,0 +1 @@
+DELETE FROM "soft_deletes" AS "soft_delete" WHERE "soft_delete"."deleted_at" != '0001-01-01 00:00:00+00:00' AND ("soft_delete"."id" = NULL)

internal/dbtest/testdata/snapshots/TestQuery-sqlite-92

@@ -0,0 +1 @@
+SELECT "soft_delete"."id", "soft_delete"."deleted_at" FROM "soft_deletes" AS "soft_delete" WHERE "soft_delete"."deleted_at" = '0001-01-01 00:00:00+00:00'

internal/dbtest/testdata/snapshots/TestQuery-sqlite-93

@@ -0,0 +1 @@
+SELECT "soft_delete"."id", "soft_delete"."deleted_at" FROM "soft_deletes" AS "soft_delete" WHERE "soft_delete"."deleted_at" != '0001-01-01 00:00:00+00:00'

internal/dbtest/testdata/snapshots/TestQuery-sqlite-94

@@ -0,0 +1 @@
+SELECT "soft_delete"."id", "soft_delete"."deleted_at" FROM "soft_deletes" AS "soft_delete"

internal/dbtest/testdata/snapshots/TestQuery-sqlite-95

@@ -0,0 +1 @@
+INSERT INTO "soft_deletes" AS "soft_delete" ("deleted_at") VALUES ('0001-01-01 00:00:00+00:00') ON CONFLICT DO NOTHING RETURNING "id"

query_base.go

@@ -6,6 +6,7 @@ import (
 	"database/sql/driver"
 	"errors"
 	"fmt"
+	"time"
 
 	"github.com/uptrace/bun/dialect/feature"
 	"github.com/uptrace/bun/internal"
@@ -628,11 +629,23 @@ func (q *whereBaseQuery) appendWhere(
 			b = append(b, q.tableModel.Table().SQLAlias...)
 			b = append(b, '.')
 		}
-		b = append(b, q.tableModel.Table().SoftDeleteField.SQLName...)
-		if q.flags.Has(deletedFlag) {
-			b = append(b, " IS NOT NULL"...)
+
+		field := q.tableModel.Table().SoftDeleteField
+		b = append(b, field.SQLName...)
+
+		if field.NullZero {
+			if q.flags.Has(deletedFlag) {
+				b = append(b, " IS NOT NULL"...)
+			} else {
+				b = append(b, " IS NULL"...)
+			}
 		} else {
-			b = append(b, " IS NULL"...)
+			if q.flags.Has(deletedFlag) {
+				b = append(b, " != "...)
+			} else {
+				b = append(b, " = "...)
+			}
+			b = fmter.Dialect().AppendTime(b, time.Time{})
 		}
 	}
 

schema/table.go

@@ -334,15 +334,6 @@ func (t *Table) newField(f reflect.StructField, index []int) *Field {
 	if tag.HasOption("pk") {
 		field.markAsPK()
 	}
-	if tag.HasOption("allowzero") {
-		if tag.HasOption("nullzero") {
-			internal.Warn.Printf(
-				"%s.%s: nullzero and allowzero options are mutually exclusive",
-				t.TypeName, f.Name,
-			)
-		}
-		field.NullZero = false
-	}
 
 	if v, ok := tag.Options["unique"]; ok {
 		// Split the value by comma, this will allow multiple names to be specified.
@@ -385,6 +376,17 @@ func (t *Table) newField(f reflect.StructField, index []int) *Field {
 		t.UpdateSoftDeleteField = softDeleteFieldUpdater(field)
 	}
 
+	// Check this in the end to undo NullZero.
+	if tag.HasOption("allowzero") {
+		if tag.HasOption("nullzero") {
+			internal.Warn.Printf(
+				"%s.%s: nullzero and allowzero options are mutually exclusive",
+				t.TypeName, f.Name,
+			)
+		}
+		field.NullZero = false
+	}
+
 	return field
 }