83 lines
2.3 KiB
Go
83 lines
2.3 KiB
Go
package node
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import (
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"time"
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"github.com/perfect-panel/server/pkg/logger"
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"gorm.io/gorm"
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)
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type Node struct {
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Id int64 `gorm:"primary_key"`
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Name string `gorm:"type:varchar(100);not null;default:'';comment:Node Name"`
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Tags string `gorm:"type:varchar(255);not null;default:'';comment:Tags"`
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Port uint16 `gorm:"not null;default:0;comment:Connect Port"`
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Address string `gorm:"type:varchar(255);not null;default:'';comment:Connect Address"`
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ServerId int64 `gorm:"not null;default:0;comment:Server ID"`
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Server *Server `gorm:"foreignKey:ServerId;references:Id"`
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Protocol string `gorm:"type:varchar(100);not null;default:'';comment:Protocol"`
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Enabled *bool `gorm:"type:boolean;not null;default:true;comment:Enabled"`
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Sort int `gorm:"uniqueIndex;not null;default:0;comment:Sort"`
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CreatedAt time.Time `gorm:"<-:create;comment:Creation Time"`
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UpdatedAt time.Time `gorm:"comment:Update Time"`
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}
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func (n *Node) TableName() string {
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return "nodes"
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}
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func (n *Node) BeforeCreate(tx *gorm.DB) error {
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if n.Sort == 0 {
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var maxSort int
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if err := tx.Model(&Node{}).Select("COALESCE(MAX(sort), 0)").Scan(&maxSort).Error; err != nil {
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return err
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}
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n.Sort = maxSort + 1
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}
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return nil
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}
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func (n *Node) BeforeDelete(tx *gorm.DB) error {
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if err := tx.Exec("UPDATE `nodes` SET sort = sort - 1 WHERE sort > ?", n.Sort).Error; err != nil {
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return err
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}
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return nil
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}
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func (n *Node) BeforeUpdate(tx *gorm.DB) error {
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var count int64
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if err := tx.Set("gorm:query_option", "FOR UPDATE").Model(&Server{}).
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Where("sort = ? AND id != ?", n.Sort, n.Id).Count(&count).Error; err != nil {
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return err
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}
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if count > 1 {
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// reorder sort
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if err := reorderSortWithNode(tx); err != nil {
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logger.Errorf("[Server] BeforeUpdate reorderSort error: %v", err.Error())
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return err
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}
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// get max sort
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var maxSort int
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if err := tx.Model(&Server{}).Select("MAX(sort)").Scan(&maxSort).Error; err != nil {
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return err
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}
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n.Sort = maxSort + 1
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}
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return nil
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}
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func reorderSortWithNode(tx *gorm.DB) error {
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var nodes []Node
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if err := tx.Order("sort, id").Find(&nodes).Error; err != nil {
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return err
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}
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for i, node := range nodes {
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if node.Sort != i+1 {
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if err := tx.Exec("UPDATE `nodes` SET sort = ? WHERE id = ?", i+1, node.Id).Error; err != nil {
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return err
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}
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}
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}
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return nil
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}
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