сделал CreateFilesUpdateEveryColumn()

bin/templates/pkg/db/crud/crud_table_update_func.go_

@@ -30,7 +30,14 @@ func (crud Crud_DB) Read_ctx(ctx context.Context, m *lawsuit_status_types.Lawsui
 	db.WithContext(ctx)
 
 	//
-	tx := db.Model(&m).Update("ColumnName", m.ColumnName)
+	var tx *gorm.DB
+	Value := m.ColumnName
+	if 0==1 && Value == 0 {
+		tx = db.Model(&m).Update("ColumnName", gorm.Expr("NULL"))
+	} else {
+		tx = db.Model(&m).Update("ColumnName", Value)
+	}
+
 	err = tx.Error
 	if err != nil {
 		err = fmt.Errorf("Read() id: %v, error: %v", m.ID, err)

internal/create_files/create_files.go

@@ -1218,3 +1218,17 @@ func FindTextConvertProtobufTypeToGolangType(Table1 *types.Table, Column1 *types
 
 	return Otvet
 }
+
+// FindTextEqualEmpty - находит текст сравнение с пустым значением
+func FindTextEqualEmpty(Column1 *types.Column, VariableName string) string {
+	Otvet := ""
+
+	DefaultValue := FindTextDefaultValue(Column1.TypeGo)
+	Otvet = VariableName + "." + Column1.NameGo + " == " + DefaultValue
+
+	if DefaultValue == "time.Time{}" {
+		Otvet = VariableName + "." + Column1.NameGo + ".IsZero() == true"
+	}
+
+	return Otvet
+}

internal/create_files/db_crud_tables/db_crud_tables.go

@@ -487,6 +487,7 @@ func CreateFilesUpdateEveryColumn(Table1 *types.Table) error {
 	"context"
 	"fmt"
 	"time"
+	"gorm.io/gorm"
 	"github.com/ManyakRus/starter/contextmain"
 	"github.com/ManyakRus/starter/micro"
 	"github.com/ManyakRus/starter/postgres_gorm"
@@ -586,6 +587,13 @@ func FindTextUpdateEveryColumn1(TextCrudUpdateFunc string, Table1 *types.Table,
 	//Otvet = strings.ReplaceAll(Otvet, "ColumnName", ColumnName)
 	//Otvet = strings.ReplaceAll(Otvet, "m.ID", "m."+ColumnName)
 
+	//внешние ключи заменяем 0 на null
+	if Column1.IsNullable == true && (Column1.TableKey != "" || Column1.TypeGo == "time.Time{}") {
+		Otvet = strings.ReplaceAll(Otvet, "0==1", "1==1")
+		TextEqualEmpty := create_files.FindTextEqualEmpty(Column1, "Value")
+		Otvet = strings.ReplaceAll(Otvet, "Value == 0", TextEqualEmpty)
+	}
+
 	return Otvet
 }