init push

backend/migration/fns/0004_update_node_status_unreleased.go

@@ -0,0 +1,36 @@
+package fns
+
+import (
+	"gorm.io/gorm"
+
+	"github.com/chaitin/panda-wiki/domain"
+	"github.com/chaitin/panda-wiki/log"
+)
+
+type MigrationUpdateNodeStatusUnreleased struct {
+	Name   string
+	logger *log.Logger
+}
+
+func NewMigrationUpdateNodeStatusUnreleased(logger *log.Logger) *MigrationUpdateNodeStatusUnreleased {
+	return &MigrationUpdateNodeStatusUnreleased{
+		Name:   "0004_update_node_status_unreleased",
+		logger: logger,
+	}
+}
+
+func (m *MigrationUpdateNodeStatusUnreleased) Execute(tx *gorm.DB) error {
+	// 将所有 status=1 (Draft) 且从未发布过的节点更新为 status=0 (Unreleased)
+	// 判断条件：node_releases 表中不存在该 node_id 的记录
+	result := tx.Model(&domain.Node{}).
+		Where("status = ?", domain.NodeStatusDraft).
+		Where("id NOT IN (SELECT DISTINCT node_id FROM node_releases)").
+		Update("status", domain.NodeStatusUnreleased)
+
+	if result.Error != nil {
+		return result.Error
+	}
+
+	m.logger.Info("migration update node status unreleased", log.Int64("affected_rows", result.RowsAffected))
+	return nil
+}