has       RelationshipType = "has"
)

type Relationships struct {
	HasOne    []*Relationship
	BelongsTo []*Relationship
	HasMany   []*Relationship
	Many2Many []*Relationship
	Relations map[string]*Relationship

	EmbeddedRelations map[string]*Relationships

	Mux sync.RWMutex
}

type Relationship struct {
	Name                     string
	Type                     RelationshipType
	Field                    *Field

					if err := association.Relationship.Field.Set(association.DB.Statement.Context, reflectValue.Index(i), reflect.New(association.Relationship.Field.IndirectFieldType).Interface()); err != nil {
						association.Error = err
						break
					}

					if association.Relationship.JoinTable == nil {
						for _, ref := range association.Relationship.References {

			for _, join := range db.Statement.Joins {
				if db.Statement.Schema != nil {
					var isRelations bool // is relations or raw sql
					var relations []*schema.Relationship
					relation, ok := db.Statement.Schema.Relationships.Relations[join.Name]
					if ok {
						isRelations = true
						relations = append(relations, relation)
					} else {
						// handle nested join like "Manager.Company"

	return names
}

// preloadEntryPoint enters layer by layer. It will call real preload if it finds the right entry point.
// If the current relationship is embedded or joined, current query will be ignored.
//
//nolint:cyclop
func preloadEntryPoint(db *gorm.DB, joins []string, relationships *schema.Relationships, preloads map[string][]interface{}, associationsConds []interface{}) error {
	preloadMap := parsePreloadMap(db.Statement.Schema, preloads)

   *
   * @since 8.0
   */
  public static final byte ESC = 27;

  /**
   * File Separator: These four information separators may be used within data in optional fashion,
   * except that their hierarchical relationship shall be: FS is the most inclusive, then GS, then
   * RS, and US is least inclusive. (The content and length of a File, Group, Record, or Unit are
   * not specified.)
   *
   * @since 8.0
   */

     */
    // MAVENAPI FIXME: the DAG used is NOT only used to represent the dependency relation,
    // but also for <parent>, <build><plugin>, <reports>. We need multiple DAG's
    // since a DAG can only handle 1 type of relationship properly.
    // Use case:  This is detected as a cycle:
    // org.apache.maven:maven-plugin-api                -(PARENT)->
    // org.apache.maven:maven                           -(inherited REPORTING)->

		Fields:           make([]*Field, 0, 10),
		FieldsByName:     make(map[string]*Field, 10),
		FieldsByBindName: make(map[string]*Field, 10),
		FieldsByDBName:   make(map[string]*Field, 10),
		Relationships:    Relationships{Relations: map[string]*Relationship{}},
		cacheStore:       cacheStore,
		namer:            namer,
		initialized:      make(chan struct{}),
	}
	// When the schema initialization is completed, the channel will be closed

			onConflict.DoUpdates = clause.AssignmentColumns(defaultUpdatingColumns)
		}
	} else {
		onConflict.DoNothing = true
	}

	return
}

func saveAssociations(db *gorm.DB, rel *schema.Relationship, rValues reflect.Value, selectColumns map[string]bool, restricted bool, defaultUpdatingColumns []string) error {
	// stop save association loop
	if checkAssociationsSaved(db, rValues) {
		return nil
	}

	var (

			}

			relation, ok := db.Statement.Schema.Relationships.Relations[association]
			if !ok {
				if preloadFields := strings.Split(association, "."); len(preloadFields) > 1 {
					relationships := &db.Statement.Schema.Relationships
					for _, field := range preloadFields {
						var ok bool
						relation, ok = relationships.Relations[field]
						if ok {
							relationships = &relation.FieldSchema.Relationships
						} else {

		return &uni, stmt.Table
	}

	getTable := func(rel *schema.Relationship) string {
		switch rel.Type {
		case schema.HasOne, schema.HasMany:
			return rel.FieldSchema.Table
		case schema.Many2Many:
			return rel.JoinTable.Table
		}
		return stmt.Table
	}

	for _, rel := range stmt.Schema.Relationships.Relations {