feat: 添加音乐键位字段，更新相关数据结构和接口

backend/database/models/contents.gen.go

@@ -38,6 +38,7 @@ type Content struct {
 	CreatedAt           time.Time                `gorm:"column:created_at;type:timestamp with time zone;default:now()" json:"created_at"`
 	UpdatedAt           time.Time                `gorm:"column:updated_at;type:timestamp with time zone;default:now()" json:"updated_at"`
 	DeletedAt           gorm.DeletedAt           `gorm:"column:deleted_at;type:timestamp with time zone" json:"deleted_at"`
+	Key                 string                   `gorm:"column:key;type:character varying(32);comment:Musical key/tone" json:"key"` // Musical key/tone
 	Author              *User                    `gorm:"foreignKey:UserID;references:ID" json:"author,omitempty"`
 	ContentAssets       []*ContentAsset          `gorm:"foreignKey:ContentID;references:ID" json:"content_assets,omitempty"`
 	Comments            []*Comment               `gorm:"foreignKey:ContentID;references:ID" json:"comments,omitempty"`

backend/database/models/contents.query.gen.go

@@ -44,6 +44,7 @@ func newContent(db *gorm.DB, opts ...gen.DOOption) contentQuery {
 	_contentQuery.CreatedAt = field.NewTime(tableName, "created_at")
 	_contentQuery.UpdatedAt = field.NewTime(tableName, "updated_at")
 	_contentQuery.DeletedAt = field.NewField(tableName, "deleted_at")
+	_contentQuery.Key = field.NewString(tableName, "key")
 	_contentQuery.Author = contentQueryBelongsToAuthor{
 		db: db.Session(&gorm.Session{}),
 
@@ -90,6 +91,7 @@ type contentQuery struct {
 	CreatedAt           field.Time
 	UpdatedAt           field.Time
 	DeletedAt           field.Field
+	Key                 field.String // Musical key/tone
 	Author              contentQueryBelongsToAuthor
 
 	ContentAssets contentQueryHasManyContentAssets
@@ -130,6 +132,7 @@ func (c *contentQuery) updateTableName(table string) *contentQuery {
 	c.CreatedAt = field.NewTime(table, "created_at")
 	c.UpdatedAt = field.NewTime(table, "updated_at")
 	c.DeletedAt = field.NewField(table, "deleted_at")
+	c.Key = field.NewString(table, "key")
 
 	c.fillFieldMap()
 
@@ -162,7 +165,7 @@ func (c *contentQuery) GetFieldByName(fieldName string) (field.OrderExpr, bool)
 }
 
 func (c *contentQuery) fillFieldMap() {
-	c.fieldMap = make(map[string]field.Expr, 22)
+	c.fieldMap = make(map[string]field.Expr, 23)
 	c.fieldMap["id"] = c.ID
 	c.fieldMap["tenant_id"] = c.TenantID
 	c.fieldMap["user_id"] = c.UserID
@@ -182,6 +185,7 @@ func (c *contentQuery) fillFieldMap() {
 	c.fieldMap["created_at"] = c.CreatedAt
 	c.fieldMap["updated_at"] = c.UpdatedAt
 	c.fieldMap["deleted_at"] = c.DeletedAt
+	c.fieldMap["key"] = c.Key
 
 }