// Code generated (@generated) by entc, DO NOT EDIT.

package ent

import (
	"context"
	"errors"
	"fmt"
	"strconv"

	"fbc/ent/entc/integration/ent/card"
	"fbc/ent/entc/integration/ent/file"
	"fbc/ent/entc/integration/ent/pet"
	"fbc/ent/entc/integration/ent/predicate"
	"fbc/ent/entc/integration/ent/user"

	"fbc/ent/dialect"
	"fbc/ent/dialect/gremlin"
	"fbc/ent/dialect/gremlin/graph/dsl"
	"fbc/ent/dialect/gremlin/graph/dsl/__"
	"fbc/ent/dialect/gremlin/graph/dsl/g"
	"fbc/ent/dialect/gremlin/graph/dsl/p"
	"fbc/ent/dialect/sql"
)

// UserUpdate is the builder for updating User entities.
type UserUpdate struct {
	config
	age              *int
	name             *string
	last             *string
	nickname         *string
	phone            *string
	card             map[string]struct{}
	pets             map[string]struct{}
	files            map[string]struct{}
	groups           map[string]struct{}
	friends          map[string]struct{}
	followers        map[string]struct{}
	following        map[string]struct{}
	team             map[string]struct{}
	spouse           map[string]struct{}
	children         map[string]struct{}
	parent           map[string]struct{}
	clearedCard      bool
	removedPets      map[string]struct{}
	removedFiles     map[string]struct{}
	removedGroups    map[string]struct{}
	removedFriends   map[string]struct{}
	removedFollowers map[string]struct{}
	removedFollowing map[string]struct{}
	clearedTeam      bool
	clearedSpouse    bool
	removedChildren  map[string]struct{}
	clearedParent    bool
	predicates       []predicate.User
}

// Where adds a new predicate for the builder.
func (uu *UserUpdate) Where(ps ...predicate.User) *UserUpdate {
	uu.predicates = append(uu.predicates, ps...)
	return uu
}

// SetAge sets the age field.
func (uu *UserUpdate) SetAge(i int) *UserUpdate {
	uu.age = &i
	return uu
}

// SetName sets the name field.
func (uu *UserUpdate) SetName(s string) *UserUpdate {
	uu.name = &s
	return uu
}

// SetLast sets the last field.
func (uu *UserUpdate) SetLast(s string) *UserUpdate {
	uu.last = &s
	return uu
}

// SetNillableLast sets the last field if the given value is not nil.
func (uu *UserUpdate) SetNillableLast(s *string) *UserUpdate {
	if s != nil {
		uu.SetLast(*s)
	}
	return uu
}

// SetNickname sets the nickname field.
func (uu *UserUpdate) SetNickname(s string) *UserUpdate {
	uu.nickname = &s
	return uu
}

// SetNillableNickname sets the nickname field if the given value is not nil.
func (uu *UserUpdate) SetNillableNickname(s *string) *UserUpdate {
	if s != nil {
		uu.SetNickname(*s)
	}
	return uu
}

// SetPhone sets the phone field.
func (uu *UserUpdate) SetPhone(s string) *UserUpdate {
	uu.phone = &s
	return uu
}

// SetNillablePhone sets the phone field if the given value is not nil.
func (uu *UserUpdate) SetNillablePhone(s *string) *UserUpdate {
	if s != nil {
		uu.SetPhone(*s)
	}
	return uu
}

// SetCardID sets the card edge to Card by id.
func (uu *UserUpdate) SetCardID(id string) *UserUpdate {
	if uu.card == nil {
		uu.card = make(map[string]struct{})
	}
	uu.card[id] = struct{}{}
	return uu
}

// SetNillableCardID sets the card edge to Card by id if the given value is not nil.
func (uu *UserUpdate) SetNillableCardID(id *string) *UserUpdate {
	if id != nil {
		uu = uu.SetCardID(*id)
	}
	return uu
}

// SetCard sets the card edge to Card.
func (uu *UserUpdate) SetCard(c *Card) *UserUpdate {
	return uu.SetCardID(c.ID)
}

// AddPetIDs adds the pets edge to Pet by ids.
func (uu *UserUpdate) AddPetIDs(ids ...string) *UserUpdate {
	if uu.pets == nil {
		uu.pets = make(map[string]struct{})
	}
	for i := range ids {
		uu.pets[ids[i]] = struct{}{}
	}
	return uu
}

// AddPets adds the pets edges to Pet.
func (uu *UserUpdate) AddPets(p ...*Pet) *UserUpdate {
	ids := make([]string, len(p))
	for i := range p {
		ids[i] = p[i].ID
	}
	return uu.AddPetIDs(ids...)
}

// AddFileIDs adds the files edge to File by ids.
func (uu *UserUpdate) AddFileIDs(ids ...string) *UserUpdate {
	if uu.files == nil {
		uu.files = make(map[string]struct{})
	}
	for i := range ids {
		uu.files[ids[i]] = struct{}{}
	}
	return uu
}

// AddFiles adds the files edges to File.
func (uu *UserUpdate) AddFiles(f ...*File) *UserUpdate {
	ids := make([]string, len(f))
	for i := range f {
		ids[i] = f[i].ID
	}
	return uu.AddFileIDs(ids...)
}

// AddGroupIDs adds the groups edge to Group by ids.
func (uu *UserUpdate) AddGroupIDs(ids ...string) *UserUpdate {
	if uu.groups == nil {
		uu.groups = make(map[string]struct{})
	}
	for i := range ids {
		uu.groups[ids[i]] = struct{}{}
	}
	return uu
}

// AddGroups adds the groups edges to Group.
func (uu *UserUpdate) AddGroups(g ...*Group) *UserUpdate {
	ids := make([]string, len(g))
	for i := range g {
		ids[i] = g[i].ID
	}
	return uu.AddGroupIDs(ids...)
}

// AddFriendIDs adds the friends edge to User by ids.
func (uu *UserUpdate) AddFriendIDs(ids ...string) *UserUpdate {
	if uu.friends == nil {
		uu.friends = make(map[string]struct{})
	}
	for i := range ids {
		uu.friends[ids[i]] = struct{}{}
	}
	return uu
}

// AddFriends adds the friends edges to User.
func (uu *UserUpdate) AddFriends(u ...*User) *UserUpdate {
	ids := make([]string, len(u))
	for i := range u {
		ids[i] = u[i].ID
	}
	return uu.AddFriendIDs(ids...)
}

// AddFollowerIDs adds the followers edge to User by ids.
func (uu *UserUpdate) AddFollowerIDs(ids ...string) *UserUpdate {
	if uu.followers == nil {
		uu.followers = make(map[string]struct{})
	}
	for i := range ids {
		uu.followers[ids[i]] = struct{}{}
	}
	return uu
}

// AddFollowers adds the followers edges to User.
func (uu *UserUpdate) AddFollowers(u ...*User) *UserUpdate {
	ids := make([]string, len(u))
	for i := range u {
		ids[i] = u[i].ID
	}
	return uu.AddFollowerIDs(ids...)
}

// AddFollowingIDs adds the following edge to User by ids.
func (uu *UserUpdate) AddFollowingIDs(ids ...string) *UserUpdate {
	if uu.following == nil {
		uu.following = make(map[string]struct{})
	}
	for i := range ids {
		uu.following[ids[i]] = struct{}{}
	}
	return uu
}

// AddFollowing adds the following edges to User.
func (uu *UserUpdate) AddFollowing(u ...*User) *UserUpdate {
	ids := make([]string, len(u))
	for i := range u {
		ids[i] = u[i].ID
	}
	return uu.AddFollowingIDs(ids...)
}

// SetTeamID sets the team edge to Pet by id.
func (uu *UserUpdate) SetTeamID(id string) *UserUpdate {
	if uu.team == nil {
		uu.team = make(map[string]struct{})
	}
	uu.team[id] = struct{}{}
	return uu
}

// SetNillableTeamID sets the team edge to Pet by id if the given value is not nil.
func (uu *UserUpdate) SetNillableTeamID(id *string) *UserUpdate {
	if id != nil {
		uu = uu.SetTeamID(*id)
	}
	return uu
}

// SetTeam sets the team edge to Pet.
func (uu *UserUpdate) SetTeam(p *Pet) *UserUpdate {
	return uu.SetTeamID(p.ID)
}

// SetSpouseID sets the spouse edge to User by id.
func (uu *UserUpdate) SetSpouseID(id string) *UserUpdate {
	if uu.spouse == nil {
		uu.spouse = make(map[string]struct{})
	}
	uu.spouse[id] = struct{}{}
	return uu
}

// SetNillableSpouseID sets the spouse edge to User by id if the given value is not nil.
func (uu *UserUpdate) SetNillableSpouseID(id *string) *UserUpdate {
	if id != nil {
		uu = uu.SetSpouseID(*id)
	}
	return uu
}

// SetSpouse sets the spouse edge to User.
func (uu *UserUpdate) SetSpouse(u *User) *UserUpdate {
	return uu.SetSpouseID(u.ID)
}

// AddChildIDs adds the children edge to User by ids.
func (uu *UserUpdate) AddChildIDs(ids ...string) *UserUpdate {
	if uu.children == nil {
		uu.children = make(map[string]struct{})
	}
	for i := range ids {
		uu.children[ids[i]] = struct{}{}
	}
	return uu
}

// AddChildren adds the children edges to User.
func (uu *UserUpdate) AddChildren(u ...*User) *UserUpdate {
	ids := make([]string, len(u))
	for i := range u {
		ids[i] = u[i].ID
	}
	return uu.AddChildIDs(ids...)
}

// SetParentID sets the parent edge to User by id.
func (uu *UserUpdate) SetParentID(id string) *UserUpdate {
	if uu.parent == nil {
		uu.parent = make(map[string]struct{})
	}
	uu.parent[id] = struct{}{}
	return uu
}

// SetNillableParentID sets the parent edge to User by id if the given value is not nil.
func (uu *UserUpdate) SetNillableParentID(id *string) *UserUpdate {
	if id != nil {
		uu = uu.SetParentID(*id)
	}
	return uu
}

// SetParent sets the parent edge to User.
func (uu *UserUpdate) SetParent(u *User) *UserUpdate {
	return uu.SetParentID(u.ID)
}

// ClearCard clears the card edge to Card.
func (uu *UserUpdate) ClearCard() *UserUpdate {
	uu.clearedCard = true
	return uu
}

// RemovePetIDs removes the pets edge to Pet by ids.
func (uu *UserUpdate) RemovePetIDs(ids ...string) *UserUpdate {
	if uu.removedPets == nil {
		uu.removedPets = make(map[string]struct{})
	}
	for i := range ids {
		uu.removedPets[ids[i]] = struct{}{}
	}
	return uu
}

// RemovePets removes pets edges to Pet.
func (uu *UserUpdate) RemovePets(p ...*Pet) *UserUpdate {
	ids := make([]string, len(p))
	for i := range p {
		ids[i] = p[i].ID
	}
	return uu.RemovePetIDs(ids...)
}

// RemoveFileIDs removes the files edge to File by ids.
func (uu *UserUpdate) RemoveFileIDs(ids ...string) *UserUpdate {
	if uu.removedFiles == nil {
		uu.removedFiles = make(map[string]struct{})
	}
	for i := range ids {
		uu.removedFiles[ids[i]] = struct{}{}
	}
	return uu
}

// RemoveFiles removes files edges to File.
func (uu *UserUpdate) RemoveFiles(f ...*File) *UserUpdate {
	ids := make([]string, len(f))
	for i := range f {
		ids[i] = f[i].ID
	}
	return uu.RemoveFileIDs(ids...)
}

// RemoveGroupIDs removes the groups edge to Group by ids.
func (uu *UserUpdate) RemoveGroupIDs(ids ...string) *UserUpdate {
	if uu.removedGroups == nil {
		uu.removedGroups = make(map[string]struct{})
	}
	for i := range ids {
		uu.removedGroups[ids[i]] = struct{}{}
	}
	return uu
}

// RemoveGroups removes groups edges to Group.
func (uu *UserUpdate) RemoveGroups(g ...*Group) *UserUpdate {
	ids := make([]string, len(g))
	for i := range g {
		ids[i] = g[i].ID
	}
	return uu.RemoveGroupIDs(ids...)
}

// RemoveFriendIDs removes the friends edge to User by ids.
func (uu *UserUpdate) RemoveFriendIDs(ids ...string) *UserUpdate {
	if uu.removedFriends == nil {
		uu.removedFriends = make(map[string]struct{})
	}
	for i := range ids {
		uu.removedFriends[ids[i]] = struct{}{}
	}
	return uu
}

// RemoveFriends removes friends edges to User.
func (uu *UserUpdate) RemoveFriends(u ...*User) *UserUpdate {
	ids := make([]string, len(u))
	for i := range u {
		ids[i] = u[i].ID
	}
	return uu.RemoveFriendIDs(ids...)
}

// RemoveFollowerIDs removes the followers edge to User by ids.
func (uu *UserUpdate) RemoveFollowerIDs(ids ...string) *UserUpdate {
	if uu.removedFollowers == nil {
		uu.removedFollowers = make(map[string]struct{})
	}
	for i := range ids {
		uu.removedFollowers[ids[i]] = struct{}{}
	}
	return uu
}

// RemoveFollowers removes followers edges to User.
func (uu *UserUpdate) RemoveFollowers(u ...*User) *UserUpdate {
	ids := make([]string, len(u))
	for i := range u {
		ids[i] = u[i].ID
	}
	return uu.RemoveFollowerIDs(ids...)
}

// RemoveFollowingIDs removes the following edge to User by ids.
func (uu *UserUpdate) RemoveFollowingIDs(ids ...string) *UserUpdate {
	if uu.removedFollowing == nil {
		uu.removedFollowing = make(map[string]struct{})
	}
	for i := range ids {
		uu.removedFollowing[ids[i]] = struct{}{}
	}
	return uu
}

// RemoveFollowing removes following edges to User.
func (uu *UserUpdate) RemoveFollowing(u ...*User) *UserUpdate {
	ids := make([]string, len(u))
	for i := range u {
		ids[i] = u[i].ID
	}
	return uu.RemoveFollowingIDs(ids...)
}

// ClearTeam clears the team edge to Pet.
func (uu *UserUpdate) ClearTeam() *UserUpdate {
	uu.clearedTeam = true
	return uu
}

// ClearSpouse clears the spouse edge to User.
func (uu *UserUpdate) ClearSpouse() *UserUpdate {
	uu.clearedSpouse = true
	return uu
}

// RemoveChildIDs removes the children edge to User by ids.
func (uu *UserUpdate) RemoveChildIDs(ids ...string) *UserUpdate {
	if uu.removedChildren == nil {
		uu.removedChildren = make(map[string]struct{})
	}
	for i := range ids {
		uu.removedChildren[ids[i]] = struct{}{}
	}
	return uu
}

// RemoveChildren removes children edges to User.
func (uu *UserUpdate) RemoveChildren(u ...*User) *UserUpdate {
	ids := make([]string, len(u))
	for i := range u {
		ids[i] = u[i].ID
	}
	return uu.RemoveChildIDs(ids...)
}

// ClearParent clears the parent edge to User.
func (uu *UserUpdate) ClearParent() *UserUpdate {
	uu.clearedParent = true
	return uu
}

// Save executes the query and returns the number of rows/vertices matched by this operation.
func (uu *UserUpdate) Save(ctx context.Context) (int, error) {
	if len(uu.card) > 1 {
		return 0, errors.New("ent: multiple assignments on a unique edge \"card\"")
	}
	if len(uu.team) > 1 {
		return 0, errors.New("ent: multiple assignments on a unique edge \"team\"")
	}
	if len(uu.spouse) > 1 {
		return 0, errors.New("ent: multiple assignments on a unique edge \"spouse\"")
	}
	if len(uu.parent) > 1 {
		return 0, errors.New("ent: multiple assignments on a unique edge \"parent\"")
	}
	switch uu.driver.Dialect() {
	case dialect.MySQL, dialect.SQLite:
		return uu.sqlSave(ctx)
	case dialect.Neptune:
		return uu.gremlinSave(ctx)
	default:
		return 0, errors.New("ent: unsupported dialect")
	}
}

// SaveX is like Save, but panics if an error occurs.
func (uu *UserUpdate) SaveX(ctx context.Context) int {
	affected, err := uu.Save(ctx)
	if err != nil {
		panic(err)
	}
	return affected
}

// Exec executes the query.
func (uu *UserUpdate) Exec(ctx context.Context) error {
	_, err := uu.Save(ctx)
	return err
}

// ExecX is like Exec, but panics if an error occurs.
func (uu *UserUpdate) ExecX(ctx context.Context) {
	if err := uu.Exec(ctx); err != nil {
		panic(err)
	}
}

func (uu *UserUpdate) sqlSave(ctx context.Context) (n int, err error) {
	selector := sql.Select(user.FieldID).From(sql.Table(user.Table))
	for _, p := range uu.predicates {
		p(selector)
	}
	rows := &sql.Rows{}
	query, args := selector.Query()
	if err = uu.driver.Query(ctx, query, args, rows); err != nil {
		return 0, err
	}
	defer rows.Close()
	var ids []int
	for rows.Next() {
		var id int
		if err := rows.Scan(&id); err != nil {
			return 0, fmt.Errorf("ent: failed reading id: %v", err)
		}
		ids = append(ids, id)
	}
	if len(ids) == 0 {
		return 0, nil
	}

	tx, err := uu.driver.Tx(ctx)
	if err != nil {
		return 0, err
	}
	var (
		update  bool
		res     sql.Result
		builder = sql.Update(user.Table).Where(sql.InInts(user.FieldID, ids...))
	)
	if uu.age != nil {
		update = true
		builder.Set(user.FieldAge, *uu.age)
	}
	if uu.name != nil {
		update = true
		builder.Set(user.FieldName, *uu.name)
	}
	if uu.last != nil {
		update = true
		builder.Set(user.FieldLast, *uu.last)
	}
	if uu.nickname != nil {
		update = true
		builder.Set(user.FieldNickname, *uu.nickname)
	}
	if uu.phone != nil {
		update = true
		builder.Set(user.FieldPhone, *uu.phone)
	}
	if update {
		query, args := builder.Query()
		if err := tx.Exec(ctx, query, args, &res); err != nil {
			return 0, rollback(tx, err)
		}
	}
	if uu.clearedCard {
		query, args := sql.Update(user.CardTable).
			SetNull(user.CardColumn).
			Where(sql.InInts(card.FieldID, ids...)).
			Query()
		if err := tx.Exec(ctx, query, args, &res); err != nil {
			return 0, rollback(tx, err)
		}
	}
	if len(uu.card) > 0 {
		for _, id := range ids {
			eid, serr := strconv.Atoi(keys(uu.card)[0])
			if serr != nil {
				return 0, rollback(tx, err)
			}
			query, args := sql.Update(user.CardTable).
				Set(user.CardColumn, id).
				Where(sql.EQ(card.FieldID, eid).And().IsNull(user.CardColumn)).
				Query()
			if err := tx.Exec(ctx, query, args, &res); err != nil {
				return 0, rollback(tx, err)
			}
			affected, err := res.RowsAffected()
			if err != nil {
				return 0, rollback(tx, err)
			}
			if int(affected) < len(uu.card) {
				return 0, rollback(tx, &ErrConstraintFailed{msg: fmt.Sprintf("one of \"card\" %v already connected to a different \"User\"", keys(uu.card))})
			}
		}
	}
	if len(uu.removedPets) > 0 {
		eids := make([]int, len(uu.removedPets))
		for eid := range uu.removedPets {
			eid, serr := strconv.Atoi(eid)
			if serr != nil {
				err = rollback(tx, serr)
				return
			}
			eids = append(eids, eid)
		}
		query, args := sql.Update(user.PetsTable).
			SetNull(user.PetsColumn).
			Where(sql.InInts(user.PetsColumn, ids...)).
			Where(sql.InInts(pet.FieldID, eids...)).
			Query()
		if err := tx.Exec(ctx, query, args, &res); err != nil {
			return 0, rollback(tx, err)
		}
	}
	if len(uu.pets) > 0 {
		for _, id := range ids {
			p := sql.P()
			for eid := range uu.pets {
				eid, serr := strconv.Atoi(eid)
				if serr != nil {
					err = rollback(tx, serr)
					return
				}
				p.Or().EQ(pet.FieldID, eid)
			}
			query, args := sql.Update(user.PetsTable).
				Set(user.PetsColumn, id).
				Where(sql.And(p, sql.IsNull(user.PetsColumn))).
				Query()
			if err := tx.Exec(ctx, query, args, &res); err != nil {
				return 0, rollback(tx, err)
			}
			affected, err := res.RowsAffected()
			if err != nil {
				return 0, rollback(tx, err)
			}
			if int(affected) < len(uu.pets) {
				return 0, rollback(tx, &ErrConstraintFailed{msg: fmt.Sprintf("one of \"pets\" %v already connected to a different \"User\"", keys(uu.pets))})
			}
		}
	}
	if len(uu.removedFiles) > 0 {
		eids := make([]int, len(uu.removedFiles))
		for eid := range uu.removedFiles {
			eid, serr := strconv.Atoi(eid)
			if serr != nil {
				err = rollback(tx, serr)
				return
			}
			eids = append(eids, eid)
		}
		query, args := sql.Update(user.FilesTable).
			SetNull(user.FilesColumn).
			Where(sql.InInts(user.FilesColumn, ids...)).
			Where(sql.InInts(file.FieldID, eids...)).
			Query()
		if err := tx.Exec(ctx, query, args, &res); err != nil {
			return 0, rollback(tx, err)
		}
	}
	if len(uu.files) > 0 {
		for _, id := range ids {
			p := sql.P()
			for eid := range uu.files {
				eid, serr := strconv.Atoi(eid)
				if serr != nil {
					err = rollback(tx, serr)
					return
				}
				p.Or().EQ(file.FieldID, eid)
			}
			query, args := sql.Update(user.FilesTable).
				Set(user.FilesColumn, id).
				Where(sql.And(p, sql.IsNull(user.FilesColumn))).
				Query()
			if err := tx.Exec(ctx, query, args, &res); err != nil {
				return 0, rollback(tx, err)
			}
			affected, err := res.RowsAffected()
			if err != nil {
				return 0, rollback(tx, err)
			}
			if int(affected) < len(uu.files) {
				return 0, rollback(tx, &ErrConstraintFailed{msg: fmt.Sprintf("one of \"files\" %v already connected to a different \"User\"", keys(uu.files))})
			}
		}
	}
	if len(uu.removedGroups) > 0 {
		eids := make([]int, len(uu.removedGroups))
		for eid := range uu.removedGroups {
			eid, serr := strconv.Atoi(eid)
			if serr != nil {
				err = rollback(tx, serr)
				return
			}
			eids = append(eids, eid)
		}
		query, args := sql.Delete(user.GroupsTable).
			Where(sql.InInts(user.GroupsPrimaryKey[0], ids...)).
			Where(sql.InInts(user.GroupsPrimaryKey[1], eids...)).
			Query()
		if err := tx.Exec(ctx, query, args, &res); err != nil {
			return 0, rollback(tx, err)
		}
	}
	if len(uu.groups) > 0 {
		values := make([][]int, 0, len(ids))
		for _, id := range ids {
			for eid := range uu.groups {
				eid, serr := strconv.Atoi(eid)
				if serr != nil {
					err = rollback(tx, serr)
					return
				}
				values = append(values, []int{id, eid})
			}
		}
		builder := sql.Insert(user.GroupsTable).
			Columns(user.GroupsPrimaryKey[0], user.GroupsPrimaryKey[1])
		for _, v := range values {
			builder.Values(v[0], v[1])
		}
		query, args := builder.Query()
		if err := tx.Exec(ctx, query, args, &res); err != nil {
			return 0, rollback(tx, err)
		}
	}
	if len(uu.removedFriends) > 0 {
		eids := make([]int, len(uu.removedFriends))
		for eid := range uu.removedFriends {
			eid, serr := strconv.Atoi(eid)
			if serr != nil {
				err = rollback(tx, serr)
				return
			}
			eids = append(eids, eid)
		}
		query, args := sql.Delete(user.FriendsTable).
			Where(sql.InInts(user.FriendsPrimaryKey[0], ids...)).
			Where(sql.InInts(user.FriendsPrimaryKey[1], eids...)).
			Query()
		if err := tx.Exec(ctx, query, args, &res); err != nil {
			return 0, rollback(tx, err)
		}
		query, args = sql.Delete(user.FriendsTable).
			Where(sql.InInts(user.FriendsPrimaryKey[1], ids...)).
			Where(sql.InInts(user.FriendsPrimaryKey[0], eids...)).
			Query()
		if err := tx.Exec(ctx, query, args, &res); err != nil {
			return 0, rollback(tx, err)
		}
	}
	if len(uu.friends) > 0 {
		values := make([][]int, 0, len(ids))
		for _, id := range ids {
			for eid := range uu.friends {
				eid, serr := strconv.Atoi(eid)
				if serr != nil {
					err = rollback(tx, serr)
					return
				}
				values = append(values, []int{id, eid}, []int{eid, id})
			}
		}
		builder := sql.Insert(user.FriendsTable).
			Columns(user.FriendsPrimaryKey[0], user.FriendsPrimaryKey[1])
		for _, v := range values {
			builder.Values(v[0], v[1])
		}
		query, args := builder.Query()
		if err := tx.Exec(ctx, query, args, &res); err != nil {
			return 0, rollback(tx, err)
		}
	}
	if len(uu.removedFollowers) > 0 {
		eids := make([]int, len(uu.removedFollowers))
		for eid := range uu.removedFollowers {
			eid, serr := strconv.Atoi(eid)
			if serr != nil {
				err = rollback(tx, serr)
				return
			}
			eids = append(eids, eid)
		}
		query, args := sql.Delete(user.FollowersTable).
			Where(sql.InInts(user.FollowersPrimaryKey[1], ids...)).
			Where(sql.InInts(user.FollowersPrimaryKey[0], eids...)).
			Query()
		if err := tx.Exec(ctx, query, args, &res); err != nil {
			return 0, rollback(tx, err)
		}
	}
	if len(uu.followers) > 0 {
		values := make([][]int, 0, len(ids))
		for _, id := range ids {
			for eid := range uu.followers {
				eid, serr := strconv.Atoi(eid)
				if serr != nil {
					err = rollback(tx, serr)
					return
				}
				values = append(values, []int{id, eid})
			}
		}
		builder := sql.Insert(user.FollowersTable).
			Columns(user.FollowersPrimaryKey[1], user.FollowersPrimaryKey[0])
		for _, v := range values {
			builder.Values(v[0], v[1])
		}
		query, args := builder.Query()
		if err := tx.Exec(ctx, query, args, &res); err != nil {
			return 0, rollback(tx, err)
		}
	}
	if len(uu.removedFollowing) > 0 {
		eids := make([]int, len(uu.removedFollowing))
		for eid := range uu.removedFollowing {
			eid, serr := strconv.Atoi(eid)
			if serr != nil {
				err = rollback(tx, serr)
				return
			}
			eids = append(eids, eid)
		}
		query, args := sql.Delete(user.FollowingTable).
			Where(sql.InInts(user.FollowingPrimaryKey[0], ids...)).
			Where(sql.InInts(user.FollowingPrimaryKey[1], eids...)).
			Query()
		if err := tx.Exec(ctx, query, args, &res); err != nil {
			return 0, rollback(tx, err)
		}
	}
	if len(uu.following) > 0 {
		values := make([][]int, 0, len(ids))
		for _, id := range ids {
			for eid := range uu.following {
				eid, serr := strconv.Atoi(eid)
				if serr != nil {
					err = rollback(tx, serr)
					return
				}
				values = append(values, []int{id, eid})
			}
		}
		builder := sql.Insert(user.FollowingTable).
			Columns(user.FollowingPrimaryKey[0], user.FollowingPrimaryKey[1])
		for _, v := range values {
			builder.Values(v[0], v[1])
		}
		query, args := builder.Query()
		if err := tx.Exec(ctx, query, args, &res); err != nil {
			return 0, rollback(tx, err)
		}
	}
	if uu.clearedTeam {
		query, args := sql.Update(user.TeamTable).
			SetNull(user.TeamColumn).
			Where(sql.InInts(pet.FieldID, ids...)).
			Query()
		if err := tx.Exec(ctx, query, args, &res); err != nil {
			return 0, rollback(tx, err)
		}
	}
	if len(uu.team) > 0 {
		for _, id := range ids {
			eid, serr := strconv.Atoi(keys(uu.team)[0])
			if serr != nil {
				return 0, rollback(tx, err)
			}
			query, args := sql.Update(user.TeamTable).
				Set(user.TeamColumn, id).
				Where(sql.EQ(pet.FieldID, eid).And().IsNull(user.TeamColumn)).
				Query()
			if err := tx.Exec(ctx, query, args, &res); err != nil {
				return 0, rollback(tx, err)
			}
			affected, err := res.RowsAffected()
			if err != nil {
				return 0, rollback(tx, err)
			}
			if int(affected) < len(uu.team) {
				return 0, rollback(tx, &ErrConstraintFailed{msg: fmt.Sprintf("one of \"team\" %v already connected to a different \"User\"", keys(uu.team))})
			}
		}
	}
	if uu.clearedSpouse {
		query, args := sql.Update(user.SpouseTable).
			SetNull(user.SpouseColumn).
			Where(sql.InInts(user.FieldID, ids...)).
			Query()
		if err := tx.Exec(ctx, query, args, &res); err != nil {
			return 0, rollback(tx, err)
		}
		query, args = sql.Update(user.SpouseTable).
			SetNull(user.SpouseColumn).
			Where(sql.InInts(user.SpouseColumn, ids...)).
			Query()
		if err := tx.Exec(ctx, query, args, &res); err != nil {
			return 0, rollback(tx, err)
		}
	}
	if len(uu.spouse) > 0 {
		if n := len(ids); n > 1 {
			return 0, rollback(tx, fmt.Errorf("ent: can't link O2O edge \"spouse\" to %d vertices (> 1)", n))
		}
		for eid := range uu.spouse {
			eid, serr := strconv.Atoi(eid)
			if serr != nil {
				err = rollback(tx, serr)
				return
			}
			query, args := sql.Update(user.SpouseTable).
				Set(user.SpouseColumn, eid).
				Where(sql.EQ(user.FieldID, ids[0])).Query()
			if err := tx.Exec(ctx, query, args, &res); err != nil {
				return 0, rollback(tx, err)
			}
			query, args = sql.Update(user.SpouseTable).
				Set(user.SpouseColumn, ids[0]).
				Where(sql.EQ(user.FieldID, eid).And().IsNull(user.SpouseColumn)).Query()
			if err := tx.Exec(ctx, query, args, &res); err != nil {
				return 0, rollback(tx, err)
			}
			affected, err := res.RowsAffected()
			if err != nil {
				return 0, rollback(tx, err)
			}
			if int(affected) < len(uu.spouse) {
				return 0, rollback(tx, &ErrConstraintFailed{msg: fmt.Sprintf("\"spouse\" (%v) already connected to a different \"User\"", eid)})
			}
		}
	}
	if len(uu.removedChildren) > 0 {
		eids := make([]int, len(uu.removedChildren))
		for eid := range uu.removedChildren {
			eid, serr := strconv.Atoi(eid)
			if serr != nil {
				err = rollback(tx, serr)
				return
			}
			eids = append(eids, eid)
		}
		query, args := sql.Update(user.ChildrenTable).
			SetNull(user.ChildrenColumn).
			Where(sql.InInts(user.ChildrenColumn, ids...)).
			Where(sql.InInts(user.FieldID, eids...)).
			Query()
		if err := tx.Exec(ctx, query, args, &res); err != nil {
			return 0, rollback(tx, err)
		}
	}
	if len(uu.children) > 0 {
		for _, id := range ids {
			p := sql.P()
			for eid := range uu.children {
				eid, serr := strconv.Atoi(eid)
				if serr != nil {
					err = rollback(tx, serr)
					return
				}
				p.Or().EQ(user.FieldID, eid)
			}
			query, args := sql.Update(user.ChildrenTable).
				Set(user.ChildrenColumn, id).
				Where(sql.And(p, sql.IsNull(user.ChildrenColumn))).
				Query()
			if err := tx.Exec(ctx, query, args, &res); err != nil {
				return 0, rollback(tx, err)
			}
			affected, err := res.RowsAffected()
			if err != nil {
				return 0, rollback(tx, err)
			}
			if int(affected) < len(uu.children) {
				return 0, rollback(tx, &ErrConstraintFailed{msg: fmt.Sprintf("one of \"children\" %v already connected to a different \"User\"", keys(uu.children))})
			}
		}
	}
	if uu.clearedParent {
		query, args := sql.Update(user.ParentTable).
			SetNull(user.ParentColumn).
			Where(sql.InInts(user.FieldID, ids...)).
			Query()
		if err := tx.Exec(ctx, query, args, &res); err != nil {
			return 0, rollback(tx, err)
		}
	}
	if len(uu.parent) > 0 {
		for eid := range uu.parent {
			eid, serr := strconv.Atoi(eid)
			if serr != nil {
				err = rollback(tx, serr)
				return
			}
			query, args := sql.Update(user.ParentTable).
				Set(user.ParentColumn, eid).
				Where(sql.InInts(user.FieldID, ids...)).
				Query()
			if err := tx.Exec(ctx, query, args, &res); err != nil {
				return 0, rollback(tx, err)
			}
		}
	}
	if err = tx.Commit(); err != nil {
		return 0, err
	}
	return len(ids), nil
}

func (uu *UserUpdate) gremlinSave(ctx context.Context) (int, error) {
	res := &gremlin.Response{}
	query, bindings := uu.gremlin().Query()
	if err := uu.driver.Exec(ctx, query, bindings, res); err != nil {
		return 0, err
	}
	if err, ok := isConstantError(res); ok {
		return 0, err
	}
	return res.ReadInt()
}

func (uu *UserUpdate) gremlin() *dsl.Traversal {
	type constraint struct {
		pred *dsl.Traversal // constraint predicate.
		test *dsl.Traversal // test matches and its constant.
	}
	constraints := make([]*constraint, 0, 8)
	v := g.V().HasLabel(user.Label)
	for _, p := range uu.predicates {
		p(v)
	}
	var (
		rv  = v.Clone()
		trs []*dsl.Traversal
	)
	if uu.age != nil {
		v.Property(dsl.Single, user.FieldAge, *uu.age)
	}
	if uu.name != nil {
		v.Property(dsl.Single, user.FieldName, *uu.name)
	}
	if uu.last != nil {
		v.Property(dsl.Single, user.FieldLast, *uu.last)
	}
	if uu.nickname != nil {
		constraints = append(constraints, &constraint{
			pred: g.V().Has(user.Label, user.FieldNickname, *uu.nickname).Count(),
			test: __.Is(p.NEQ(0)).Constant(NewErrUniqueField(user.Label, user.FieldNickname, *uu.nickname)),
		})
		v.Property(dsl.Single, user.FieldNickname, *uu.nickname)
	}
	if uu.phone != nil {
		constraints = append(constraints, &constraint{
			pred: g.V().Has(user.Label, user.FieldPhone, *uu.phone).Count(),
			test: __.Is(p.NEQ(0)).Constant(NewErrUniqueField(user.Label, user.FieldPhone, *uu.phone)),
		})
		v.Property(dsl.Single, user.FieldPhone, *uu.phone)
	}
	if uu.clearedCard {
		tr := rv.Clone().OutE(user.CardLabel).Drop().Iterate()
		trs = append(trs, tr)
	}
	for id := range uu.card {
		v.AddE(user.CardLabel).To(g.V(id)).OutV()
		constraints = append(constraints, &constraint{
			pred: g.E().HasLabel(user.CardLabel).InV().HasID(id).Count(),
			test: __.Is(p.NEQ(0)).Constant(NewErrUniqueEdge(user.Label, user.CardLabel, id)),
		})
	}
	for id := range uu.removedPets {
		tr := rv.Clone().OutE(user.PetsLabel).Where(__.OtherV().HasID(id)).Drop().Iterate()
		trs = append(trs, tr)
	}
	for id := range uu.pets {
		v.AddE(user.PetsLabel).To(g.V(id)).OutV()
		constraints = append(constraints, &constraint{
			pred: g.E().HasLabel(user.PetsLabel).InV().HasID(id).Count(),
			test: __.Is(p.NEQ(0)).Constant(NewErrUniqueEdge(user.Label, user.PetsLabel, id)),
		})
	}
	for id := range uu.removedFiles {
		tr := rv.Clone().OutE(user.FilesLabel).Where(__.OtherV().HasID(id)).Drop().Iterate()
		trs = append(trs, tr)
	}
	for id := range uu.files {
		v.AddE(user.FilesLabel).To(g.V(id)).OutV()
		constraints = append(constraints, &constraint{
			pred: g.E().HasLabel(user.FilesLabel).InV().HasID(id).Count(),
			test: __.Is(p.NEQ(0)).Constant(NewErrUniqueEdge(user.Label, user.FilesLabel, id)),
		})
	}
	for id := range uu.removedGroups {
		tr := rv.Clone().OutE(user.GroupsLabel).Where(__.OtherV().HasID(id)).Drop().Iterate()
		trs = append(trs, tr)
	}
	for id := range uu.groups {
		v.AddE(user.GroupsLabel).To(g.V(id)).OutV()
	}
	for id := range uu.removedFriends {
		tr := rv.Clone().BothE(user.FriendsLabel).Where(__.Or(__.InV().HasID(id), __.OutV().HasID(id))).Drop().Iterate()
		trs = append(trs, tr)
	}
	for id := range uu.friends {
		v.AddE(user.FriendsLabel).To(g.V(id)).OutV()
	}
	for id := range uu.removedFollowers {
		tr := rv.Clone().InE(user.FollowingLabel).Where(__.OtherV().HasID(id)).Drop().Iterate()
		trs = append(trs, tr)
	}
	for id := range uu.followers {
		v.AddE(user.FollowingLabel).From(g.V(id)).InV()
	}
	for id := range uu.removedFollowing {
		tr := rv.Clone().OutE(user.FollowingLabel).Where(__.OtherV().HasID(id)).Drop().Iterate()
		trs = append(trs, tr)
	}
	for id := range uu.following {
		v.AddE(user.FollowingLabel).To(g.V(id)).OutV()
	}
	if uu.clearedTeam {
		tr := rv.Clone().OutE(user.TeamLabel).Drop().Iterate()
		trs = append(trs, tr)
	}
	for id := range uu.team {
		v.AddE(user.TeamLabel).To(g.V(id)).OutV()
		constraints = append(constraints, &constraint{
			pred: g.E().HasLabel(user.TeamLabel).InV().HasID(id).Count(),
			test: __.Is(p.NEQ(0)).Constant(NewErrUniqueEdge(user.Label, user.TeamLabel, id)),
		})
	}
	if uu.clearedSpouse {
		tr := rv.Clone().BothE(user.SpouseLabel).Drop().Iterate()
		trs = append(trs, tr)
	}
	for id := range uu.spouse {
		v.AddE(user.SpouseLabel).To(g.V(id)).OutV()
		constraints = append(constraints, &constraint{
			pred: rv.Clone().Both(user.SpouseLabel).Count(),
			test: __.Is(p.NEQ(0)).Constant(NewErrUniqueEdge(user.Label, user.SpouseLabel, id)),
		})
		constraints = append(constraints, &constraint{
			pred: g.E().HasLabel(user.SpouseLabel).Where(__.Or(__.InV().HasID(id), __.OutV().HasID(id))).Count(),
			test: __.Is(p.NEQ(0)).Constant(NewErrUniqueEdge(user.Label, user.SpouseLabel, id)),
		})
	}
	for id := range uu.removedChildren {
		tr := rv.Clone().InE(user.ParentLabel).Where(__.OtherV().HasID(id)).Drop().Iterate()
		trs = append(trs, tr)
	}
	for id := range uu.children {
		v.AddE(user.ParentLabel).From(g.V(id)).InV()
		constraints = append(constraints, &constraint{
			pred: g.E().HasLabel(user.ParentLabel).OutV().HasID(id).Count(),
			test: __.Is(p.NEQ(0)).Constant(NewErrUniqueEdge(user.Label, user.ParentLabel, id)),
		})
	}
	if uu.clearedParent {
		tr := rv.Clone().OutE(user.ParentLabel).Drop().Iterate()
		trs = append(trs, tr)
	}
	for id := range uu.parent {
		v.AddE(user.ParentLabel).To(g.V(id)).OutV()
	}
	v.Count()
	if len(constraints) > 0 {
		constraints = append(constraints, &constraint{
			pred: rv.Count(),
			test: __.Is(p.GT(1)).Constant(&ErrConstraintFailed{msg: "update traversal contains more than one vertex"}),
		})
		v = constraints[0].pred.Coalesce(constraints[0].test, v)
		for _, cr := range constraints[1:] {
			v = cr.pred.Coalesce(cr.test, v)
		}
	}
	trs = append(trs, v)
	return dsl.Join(trs...)
}

// UserUpdateOne is the builder for updating a single User entity.
type UserUpdateOne struct {
	config
	id               string
	age              *int
	name             *string
	last             *string
	nickname         *string
	phone            *string
	card             map[string]struct{}
	pets             map[string]struct{}
	files            map[string]struct{}
	groups           map[string]struct{}
	friends          map[string]struct{}
	followers        map[string]struct{}
	following        map[string]struct{}
	team             map[string]struct{}
	spouse           map[string]struct{}
	children         map[string]struct{}
	parent           map[string]struct{}
	clearedCard      bool
	removedPets      map[string]struct{}
	removedFiles     map[string]struct{}
	removedGroups    map[string]struct{}
	removedFriends   map[string]struct{}
	removedFollowers map[string]struct{}
	removedFollowing map[string]struct{}
	clearedTeam      bool
	clearedSpouse    bool
	removedChildren  map[string]struct{}
	clearedParent    bool
}

// SetAge sets the age field.
func (uuo *UserUpdateOne) SetAge(i int) *UserUpdateOne {
	uuo.age = &i
	return uuo
}

// SetName sets the name field.
func (uuo *UserUpdateOne) SetName(s string) *UserUpdateOne {
	uuo.name = &s
	return uuo
}

// SetLast sets the last field.
func (uuo *UserUpdateOne) SetLast(s string) *UserUpdateOne {
	uuo.last = &s
	return uuo
}

// SetNillableLast sets the last field if the given value is not nil.
func (uuo *UserUpdateOne) SetNillableLast(s *string) *UserUpdateOne {
	if s != nil {
		uuo.SetLast(*s)
	}
	return uuo
}

// SetNickname sets the nickname field.
func (uuo *UserUpdateOne) SetNickname(s string) *UserUpdateOne {
	uuo.nickname = &s
	return uuo
}

// SetNillableNickname sets the nickname field if the given value is not nil.
func (uuo *UserUpdateOne) SetNillableNickname(s *string) *UserUpdateOne {
	if s != nil {
		uuo.SetNickname(*s)
	}
	return uuo
}

// SetPhone sets the phone field.
func (uuo *UserUpdateOne) SetPhone(s string) *UserUpdateOne {
	uuo.phone = &s
	return uuo
}

// SetNillablePhone sets the phone field if the given value is not nil.
func (uuo *UserUpdateOne) SetNillablePhone(s *string) *UserUpdateOne {
	if s != nil {
		uuo.SetPhone(*s)
	}
	return uuo
}

// SetCardID sets the card edge to Card by id.
func (uuo *UserUpdateOne) SetCardID(id string) *UserUpdateOne {
	if uuo.card == nil {
		uuo.card = make(map[string]struct{})
	}
	uuo.card[id] = struct{}{}
	return uuo
}

// SetNillableCardID sets the card edge to Card by id if the given value is not nil.
func (uuo *UserUpdateOne) SetNillableCardID(id *string) *UserUpdateOne {
	if id != nil {
		uuo = uuo.SetCardID(*id)
	}
	return uuo
}

// SetCard sets the card edge to Card.
func (uuo *UserUpdateOne) SetCard(c *Card) *UserUpdateOne {
	return uuo.SetCardID(c.ID)
}

// AddPetIDs adds the pets edge to Pet by ids.
func (uuo *UserUpdateOne) AddPetIDs(ids ...string) *UserUpdateOne {
	if uuo.pets == nil {
		uuo.pets = make(map[string]struct{})
	}
	for i := range ids {
		uuo.pets[ids[i]] = struct{}{}
	}
	return uuo
}

// AddPets adds the pets edges to Pet.
func (uuo *UserUpdateOne) AddPets(p ...*Pet) *UserUpdateOne {
	ids := make([]string, len(p))
	for i := range p {
		ids[i] = p[i].ID
	}
	return uuo.AddPetIDs(ids...)
}

// AddFileIDs adds the files edge to File by ids.
func (uuo *UserUpdateOne) AddFileIDs(ids ...string) *UserUpdateOne {
	if uuo.files == nil {
		uuo.files = make(map[string]struct{})
	}
	for i := range ids {
		uuo.files[ids[i]] = struct{}{}
	}
	return uuo
}

// AddFiles adds the files edges to File.
func (uuo *UserUpdateOne) AddFiles(f ...*File) *UserUpdateOne {
	ids := make([]string, len(f))
	for i := range f {
		ids[i] = f[i].ID
	}
	return uuo.AddFileIDs(ids...)
}

// AddGroupIDs adds the groups edge to Group by ids.
func (uuo *UserUpdateOne) AddGroupIDs(ids ...string) *UserUpdateOne {
	if uuo.groups == nil {
		uuo.groups = make(map[string]struct{})
	}
	for i := range ids {
		uuo.groups[ids[i]] = struct{}{}
	}
	return uuo
}

// AddGroups adds the groups edges to Group.
func (uuo *UserUpdateOne) AddGroups(g ...*Group) *UserUpdateOne {
	ids := make([]string, len(g))
	for i := range g {
		ids[i] = g[i].ID
	}
	return uuo.AddGroupIDs(ids...)
}

// AddFriendIDs adds the friends edge to User by ids.
func (uuo *UserUpdateOne) AddFriendIDs(ids ...string) *UserUpdateOne {
	if uuo.friends == nil {
		uuo.friends = make(map[string]struct{})
	}
	for i := range ids {
		uuo.friends[ids[i]] = struct{}{}
	}
	return uuo
}

// AddFriends adds the friends edges to User.
func (uuo *UserUpdateOne) AddFriends(u ...*User) *UserUpdateOne {
	ids := make([]string, len(u))
	for i := range u {
		ids[i] = u[i].ID
	}
	return uuo.AddFriendIDs(ids...)
}

// AddFollowerIDs adds the followers edge to User by ids.
func (uuo *UserUpdateOne) AddFollowerIDs(ids ...string) *UserUpdateOne {
	if uuo.followers == nil {
		uuo.followers = make(map[string]struct{})
	}
	for i := range ids {
		uuo.followers[ids[i]] = struct{}{}
	}
	return uuo
}

// AddFollowers adds the followers edges to User.
func (uuo *UserUpdateOne) AddFollowers(u ...*User) *UserUpdateOne {
	ids := make([]string, len(u))
	for i := range u {
		ids[i] = u[i].ID
	}
	return uuo.AddFollowerIDs(ids...)
}

// AddFollowingIDs adds the following edge to User by ids.
func (uuo *UserUpdateOne) AddFollowingIDs(ids ...string) *UserUpdateOne {
	if uuo.following == nil {
		uuo.following = make(map[string]struct{})
	}
	for i := range ids {
		uuo.following[ids[i]] = struct{}{}
	}
	return uuo
}

// AddFollowing adds the following edges to User.
func (uuo *UserUpdateOne) AddFollowing(u ...*User) *UserUpdateOne {
	ids := make([]string, len(u))
	for i := range u {
		ids[i] = u[i].ID
	}
	return uuo.AddFollowingIDs(ids...)
}

// SetTeamID sets the team edge to Pet by id.
func (uuo *UserUpdateOne) SetTeamID(id string) *UserUpdateOne {
	if uuo.team == nil {
		uuo.team = make(map[string]struct{})
	}
	uuo.team[id] = struct{}{}
	return uuo
}

// SetNillableTeamID sets the team edge to Pet by id if the given value is not nil.
func (uuo *UserUpdateOne) SetNillableTeamID(id *string) *UserUpdateOne {
	if id != nil {
		uuo = uuo.SetTeamID(*id)
	}
	return uuo
}

// SetTeam sets the team edge to Pet.
func (uuo *UserUpdateOne) SetTeam(p *Pet) *UserUpdateOne {
	return uuo.SetTeamID(p.ID)
}

// SetSpouseID sets the spouse edge to User by id.
func (uuo *UserUpdateOne) SetSpouseID(id string) *UserUpdateOne {
	if uuo.spouse == nil {
		uuo.spouse = make(map[string]struct{})
	}
	uuo.spouse[id] = struct{}{}
	return uuo
}

// SetNillableSpouseID sets the spouse edge to User by id if the given value is not nil.
func (uuo *UserUpdateOne) SetNillableSpouseID(id *string) *UserUpdateOne {
	if id != nil {
		uuo = uuo.SetSpouseID(*id)
	}
	return uuo
}

// SetSpouse sets the spouse edge to User.
func (uuo *UserUpdateOne) SetSpouse(u *User) *UserUpdateOne {
	return uuo.SetSpouseID(u.ID)
}

// AddChildIDs adds the children edge to User by ids.
func (uuo *UserUpdateOne) AddChildIDs(ids ...string) *UserUpdateOne {
	if uuo.children == nil {
		uuo.children = make(map[string]struct{})
	}
	for i := range ids {
		uuo.children[ids[i]] = struct{}{}
	}
	return uuo
}

// AddChildren adds the children edges to User.
func (uuo *UserUpdateOne) AddChildren(u ...*User) *UserUpdateOne {
	ids := make([]string, len(u))
	for i := range u {
		ids[i] = u[i].ID
	}
	return uuo.AddChildIDs(ids...)
}

// SetParentID sets the parent edge to User by id.
func (uuo *UserUpdateOne) SetParentID(id string) *UserUpdateOne {
	if uuo.parent == nil {
		uuo.parent = make(map[string]struct{})
	}
	uuo.parent[id] = struct{}{}
	return uuo
}

// SetNillableParentID sets the parent edge to User by id if the given value is not nil.
func (uuo *UserUpdateOne) SetNillableParentID(id *string) *UserUpdateOne {
	if id != nil {
		uuo = uuo.SetParentID(*id)
	}
	return uuo
}

// SetParent sets the parent edge to User.
func (uuo *UserUpdateOne) SetParent(u *User) *UserUpdateOne {
	return uuo.SetParentID(u.ID)
}

// ClearCard clears the card edge to Card.
func (uuo *UserUpdateOne) ClearCard() *UserUpdateOne {
	uuo.clearedCard = true
	return uuo
}

// RemovePetIDs removes the pets edge to Pet by ids.
func (uuo *UserUpdateOne) RemovePetIDs(ids ...string) *UserUpdateOne {
	if uuo.removedPets == nil {
		uuo.removedPets = make(map[string]struct{})
	}
	for i := range ids {
		uuo.removedPets[ids[i]] = struct{}{}
	}
	return uuo
}

// RemovePets removes pets edges to Pet.
func (uuo *UserUpdateOne) RemovePets(p ...*Pet) *UserUpdateOne {
	ids := make([]string, len(p))
	for i := range p {
		ids[i] = p[i].ID
	}
	return uuo.RemovePetIDs(ids...)
}

// RemoveFileIDs removes the files edge to File by ids.
func (uuo *UserUpdateOne) RemoveFileIDs(ids ...string) *UserUpdateOne {
	if uuo.removedFiles == nil {
		uuo.removedFiles = make(map[string]struct{})
	}
	for i := range ids {
		uuo.removedFiles[ids[i]] = struct{}{}
	}
	return uuo
}

// RemoveFiles removes files edges to File.
func (uuo *UserUpdateOne) RemoveFiles(f ...*File) *UserUpdateOne {
	ids := make([]string, len(f))
	for i := range f {
		ids[i] = f[i].ID
	}
	return uuo.RemoveFileIDs(ids...)
}

// RemoveGroupIDs removes the groups edge to Group by ids.
func (uuo *UserUpdateOne) RemoveGroupIDs(ids ...string) *UserUpdateOne {
	if uuo.removedGroups == nil {
		uuo.removedGroups = make(map[string]struct{})
	}
	for i := range ids {
		uuo.removedGroups[ids[i]] = struct{}{}
	}
	return uuo
}

// RemoveGroups removes groups edges to Group.
func (uuo *UserUpdateOne) RemoveGroups(g ...*Group) *UserUpdateOne {
	ids := make([]string, len(g))
	for i := range g {
		ids[i] = g[i].ID
	}
	return uuo.RemoveGroupIDs(ids...)
}

// RemoveFriendIDs removes the friends edge to User by ids.
func (uuo *UserUpdateOne) RemoveFriendIDs(ids ...string) *UserUpdateOne {
	if uuo.removedFriends == nil {
		uuo.removedFriends = make(map[string]struct{})
	}
	for i := range ids {
		uuo.removedFriends[ids[i]] = struct{}{}
	}
	return uuo
}

// RemoveFriends removes friends edges to User.
func (uuo *UserUpdateOne) RemoveFriends(u ...*User) *UserUpdateOne {
	ids := make([]string, len(u))
	for i := range u {
		ids[i] = u[i].ID
	}
	return uuo.RemoveFriendIDs(ids...)
}

// RemoveFollowerIDs removes the followers edge to User by ids.
func (uuo *UserUpdateOne) RemoveFollowerIDs(ids ...string) *UserUpdateOne {
	if uuo.removedFollowers == nil {
		uuo.removedFollowers = make(map[string]struct{})
	}
	for i := range ids {
		uuo.removedFollowers[ids[i]] = struct{}{}
	}
	return uuo
}

// RemoveFollowers removes followers edges to User.
func (uuo *UserUpdateOne) RemoveFollowers(u ...*User) *UserUpdateOne {
	ids := make([]string, len(u))
	for i := range u {
		ids[i] = u[i].ID
	}
	return uuo.RemoveFollowerIDs(ids...)
}

// RemoveFollowingIDs removes the following edge to User by ids.
func (uuo *UserUpdateOne) RemoveFollowingIDs(ids ...string) *UserUpdateOne {
	if uuo.removedFollowing == nil {
		uuo.removedFollowing = make(map[string]struct{})
	}
	for i := range ids {
		uuo.removedFollowing[ids[i]] = struct{}{}
	}
	return uuo
}

// RemoveFollowing removes following edges to User.
func (uuo *UserUpdateOne) RemoveFollowing(u ...*User) *UserUpdateOne {
	ids := make([]string, len(u))
	for i := range u {
		ids[i] = u[i].ID
	}
	return uuo.RemoveFollowingIDs(ids...)
}

// ClearTeam clears the team edge to Pet.
func (uuo *UserUpdateOne) ClearTeam() *UserUpdateOne {
	uuo.clearedTeam = true
	return uuo
}

// ClearSpouse clears the spouse edge to User.
func (uuo *UserUpdateOne) ClearSpouse() *UserUpdateOne {
	uuo.clearedSpouse = true
	return uuo
}

// RemoveChildIDs removes the children edge to User by ids.
func (uuo *UserUpdateOne) RemoveChildIDs(ids ...string) *UserUpdateOne {
	if uuo.removedChildren == nil {
		uuo.removedChildren = make(map[string]struct{})
	}
	for i := range ids {
		uuo.removedChildren[ids[i]] = struct{}{}
	}
	return uuo
}

// RemoveChildren removes children edges to User.
func (uuo *UserUpdateOne) RemoveChildren(u ...*User) *UserUpdateOne {
	ids := make([]string, len(u))
	for i := range u {
		ids[i] = u[i].ID
	}
	return uuo.RemoveChildIDs(ids...)
}

// ClearParent clears the parent edge to User.
func (uuo *UserUpdateOne) ClearParent() *UserUpdateOne {
	uuo.clearedParent = true
	return uuo
}

// Save executes the query and returns the updated entity.
func (uuo *UserUpdateOne) Save(ctx context.Context) (*User, error) {
	if len(uuo.card) > 1 {
		return nil, errors.New("ent: multiple assignments on a unique edge \"card\"")
	}
	if len(uuo.team) > 1 {
		return nil, errors.New("ent: multiple assignments on a unique edge \"team\"")
	}
	if len(uuo.spouse) > 1 {
		return nil, errors.New("ent: multiple assignments on a unique edge \"spouse\"")
	}
	if len(uuo.parent) > 1 {
		return nil, errors.New("ent: multiple assignments on a unique edge \"parent\"")
	}
	switch uuo.driver.Dialect() {
	case dialect.MySQL, dialect.SQLite:
		return uuo.sqlSave(ctx)
	case dialect.Neptune:
		return uuo.gremlinSave(ctx)
	default:
		return nil, errors.New("ent: unsupported dialect")
	}
}

// SaveX is like Save, but panics if an error occurs.
func (uuo *UserUpdateOne) SaveX(ctx context.Context) *User {
	u, err := uuo.Save(ctx)
	if err != nil {
		panic(err)
	}
	return u
}

// Exec executes the query on the entity.
func (uuo *UserUpdateOne) Exec(ctx context.Context) error {
	_, err := uuo.Save(ctx)
	return err
}

// ExecX is like Exec, but panics if an error occurs.
func (uuo *UserUpdateOne) ExecX(ctx context.Context) {
	if err := uuo.Exec(ctx); err != nil {
		panic(err)
	}
}

func (uuo *UserUpdateOne) sqlSave(ctx context.Context) (u *User, err error) {
	selector := sql.Select(user.Columns...).From(sql.Table(user.Table))
	user.ID(uuo.id)(selector)
	rows := &sql.Rows{}
	query, args := selector.Query()
	if err = uuo.driver.Query(ctx, query, args, rows); err != nil {
		return nil, err
	}
	defer rows.Close()
	var ids []int
	for rows.Next() {
		var id int
		u = &User{config: uuo.config}
		if err := u.FromRows(rows); err != nil {
			return nil, fmt.Errorf("ent: failed scanning row into User: %v", err)
		}
		id = u.id()
		ids = append(ids, id)
	}
	switch n := len(ids); {
	case n == 0:
		return nil, fmt.Errorf("ent: User not found with id: %v", uuo.id)
	case n > 1:
		return nil, fmt.Errorf("ent: more than one User with the same id: %v", uuo.id)
	}

	tx, err := uuo.driver.Tx(ctx)
	if err != nil {
		return nil, err
	}
	var (
		update  bool
		res     sql.Result
		builder = sql.Update(user.Table).Where(sql.InInts(user.FieldID, ids...))
	)
	if uuo.age != nil {
		update = true
		builder.Set(user.FieldAge, *uuo.age)
		u.Age = *uuo.age
	}
	if uuo.name != nil {
		update = true
		builder.Set(user.FieldName, *uuo.name)
		u.Name = *uuo.name
	}
	if uuo.last != nil {
		update = true
		builder.Set(user.FieldLast, *uuo.last)
		u.Last = *uuo.last
	}
	if uuo.nickname != nil {
		update = true
		builder.Set(user.FieldNickname, *uuo.nickname)
		u.Nickname = *uuo.nickname
	}
	if uuo.phone != nil {
		update = true
		builder.Set(user.FieldPhone, *uuo.phone)
		u.Phone = *uuo.phone
	}
	if update {
		query, args := builder.Query()
		if err := tx.Exec(ctx, query, args, &res); err != nil {
			return nil, rollback(tx, err)
		}
	}
	if uuo.clearedCard {
		query, args := sql.Update(user.CardTable).
			SetNull(user.CardColumn).
			Where(sql.InInts(card.FieldID, ids...)).
			Query()
		if err := tx.Exec(ctx, query, args, &res); err != nil {
			return nil, rollback(tx, err)
		}
	}
	if len(uuo.card) > 0 {
		for _, id := range ids {
			eid, serr := strconv.Atoi(keys(uuo.card)[0])
			if serr != nil {
				return nil, rollback(tx, err)
			}
			query, args := sql.Update(user.CardTable).
				Set(user.CardColumn, id).
				Where(sql.EQ(card.FieldID, eid).And().IsNull(user.CardColumn)).
				Query()
			if err := tx.Exec(ctx, query, args, &res); err != nil {
				return nil, rollback(tx, err)
			}
			affected, err := res.RowsAffected()
			if err != nil {
				return nil, rollback(tx, err)
			}
			if int(affected) < len(uuo.card) {
				return nil, rollback(tx, &ErrConstraintFailed{msg: fmt.Sprintf("one of \"card\" %v already connected to a different \"User\"", keys(uuo.card))})
			}
		}
	}
	if len(uuo.removedPets) > 0 {
		eids := make([]int, len(uuo.removedPets))
		for eid := range uuo.removedPets {
			eid, serr := strconv.Atoi(eid)
			if serr != nil {
				err = rollback(tx, serr)
				return
			}
			eids = append(eids, eid)
		}
		query, args := sql.Update(user.PetsTable).
			SetNull(user.PetsColumn).
			Where(sql.InInts(user.PetsColumn, ids...)).
			Where(sql.InInts(pet.FieldID, eids...)).
			Query()
		if err := tx.Exec(ctx, query, args, &res); err != nil {
			return nil, rollback(tx, err)
		}
	}
	if len(uuo.pets) > 0 {
		for _, id := range ids {
			p := sql.P()
			for eid := range uuo.pets {
				eid, serr := strconv.Atoi(eid)
				if serr != nil {
					err = rollback(tx, serr)
					return
				}
				p.Or().EQ(pet.FieldID, eid)
			}
			query, args := sql.Update(user.PetsTable).
				Set(user.PetsColumn, id).
				Where(sql.And(p, sql.IsNull(user.PetsColumn))).
				Query()
			if err := tx.Exec(ctx, query, args, &res); err != nil {
				return nil, rollback(tx, err)
			}
			affected, err := res.RowsAffected()
			if err != nil {
				return nil, rollback(tx, err)
			}
			if int(affected) < len(uuo.pets) {
				return nil, rollback(tx, &ErrConstraintFailed{msg: fmt.Sprintf("one of \"pets\" %v already connected to a different \"User\"", keys(uuo.pets))})
			}
		}
	}
	if len(uuo.removedFiles) > 0 {
		eids := make([]int, len(uuo.removedFiles))
		for eid := range uuo.removedFiles {
			eid, serr := strconv.Atoi(eid)
			if serr != nil {
				err = rollback(tx, serr)
				return
			}
			eids = append(eids, eid)
		}
		query, args := sql.Update(user.FilesTable).
			SetNull(user.FilesColumn).
			Where(sql.InInts(user.FilesColumn, ids...)).
			Where(sql.InInts(file.FieldID, eids...)).
			Query()
		if err := tx.Exec(ctx, query, args, &res); err != nil {
			return nil, rollback(tx, err)
		}
	}
	if len(uuo.files) > 0 {
		for _, id := range ids {
			p := sql.P()
			for eid := range uuo.files {
				eid, serr := strconv.Atoi(eid)
				if serr != nil {
					err = rollback(tx, serr)
					return
				}
				p.Or().EQ(file.FieldID, eid)
			}
			query, args := sql.Update(user.FilesTable).
				Set(user.FilesColumn, id).
				Where(sql.And(p, sql.IsNull(user.FilesColumn))).
				Query()
			if err := tx.Exec(ctx, query, args, &res); err != nil {
				return nil, rollback(tx, err)
			}
			affected, err := res.RowsAffected()
			if err != nil {
				return nil, rollback(tx, err)
			}
			if int(affected) < len(uuo.files) {
				return nil, rollback(tx, &ErrConstraintFailed{msg: fmt.Sprintf("one of \"files\" %v already connected to a different \"User\"", keys(uuo.files))})
			}
		}
	}
	if len(uuo.removedGroups) > 0 {
		eids := make([]int, len(uuo.removedGroups))
		for eid := range uuo.removedGroups {
			eid, serr := strconv.Atoi(eid)
			if serr != nil {
				err = rollback(tx, serr)
				return
			}
			eids = append(eids, eid)
		}
		query, args := sql.Delete(user.GroupsTable).
			Where(sql.InInts(user.GroupsPrimaryKey[0], ids...)).
			Where(sql.InInts(user.GroupsPrimaryKey[1], eids...)).
			Query()
		if err := tx.Exec(ctx, query, args, &res); err != nil {
			return nil, rollback(tx, err)
		}
	}
	if len(uuo.groups) > 0 {
		values := make([][]int, 0, len(ids))
		for _, id := range ids {
			for eid := range uuo.groups {
				eid, serr := strconv.Atoi(eid)
				if serr != nil {
					err = rollback(tx, serr)
					return
				}
				values = append(values, []int{id, eid})
			}
		}
		builder := sql.Insert(user.GroupsTable).
			Columns(user.GroupsPrimaryKey[0], user.GroupsPrimaryKey[1])
		for _, v := range values {
			builder.Values(v[0], v[1])
		}
		query, args := builder.Query()
		if err := tx.Exec(ctx, query, args, &res); err != nil {
			return nil, rollback(tx, err)
		}
	}
	if len(uuo.removedFriends) > 0 {
		eids := make([]int, len(uuo.removedFriends))
		for eid := range uuo.removedFriends {
			eid, serr := strconv.Atoi(eid)
			if serr != nil {
				err = rollback(tx, serr)
				return
			}
			eids = append(eids, eid)
		}
		query, args := sql.Delete(user.FriendsTable).
			Where(sql.InInts(user.FriendsPrimaryKey[0], ids...)).
			Where(sql.InInts(user.FriendsPrimaryKey[1], eids...)).
			Query()
		if err := tx.Exec(ctx, query, args, &res); err != nil {
			return nil, rollback(tx, err)
		}
		query, args = sql.Delete(user.FriendsTable).
			Where(sql.InInts(user.FriendsPrimaryKey[1], ids...)).
			Where(sql.InInts(user.FriendsPrimaryKey[0], eids...)).
			Query()
		if err := tx.Exec(ctx, query, args, &res); err != nil {
			return nil, rollback(tx, err)
		}
	}
	if len(uuo.friends) > 0 {
		values := make([][]int, 0, len(ids))
		for _, id := range ids {
			for eid := range uuo.friends {
				eid, serr := strconv.Atoi(eid)
				if serr != nil {
					err = rollback(tx, serr)
					return
				}
				values = append(values, []int{id, eid}, []int{eid, id})
			}
		}
		builder := sql.Insert(user.FriendsTable).
			Columns(user.FriendsPrimaryKey[0], user.FriendsPrimaryKey[1])
		for _, v := range values {
			builder.Values(v[0], v[1])
		}
		query, args := builder.Query()
		if err := tx.Exec(ctx, query, args, &res); err != nil {
			return nil, rollback(tx, err)
		}
	}
	if len(uuo.removedFollowers) > 0 {
		eids := make([]int, len(uuo.removedFollowers))
		for eid := range uuo.removedFollowers {
			eid, serr := strconv.Atoi(eid)
			if serr != nil {
				err = rollback(tx, serr)
				return
			}
			eids = append(eids, eid)
		}
		query, args := sql.Delete(user.FollowersTable).
			Where(sql.InInts(user.FollowersPrimaryKey[1], ids...)).
			Where(sql.InInts(user.FollowersPrimaryKey[0], eids...)).
			Query()
		if err := tx.Exec(ctx, query, args, &res); err != nil {
			return nil, rollback(tx, err)
		}
	}
	if len(uuo.followers) > 0 {
		values := make([][]int, 0, len(ids))
		for _, id := range ids {
			for eid := range uuo.followers {
				eid, serr := strconv.Atoi(eid)
				if serr != nil {
					err = rollback(tx, serr)
					return
				}
				values = append(values, []int{id, eid})
			}
		}
		builder := sql.Insert(user.FollowersTable).
			Columns(user.FollowersPrimaryKey[1], user.FollowersPrimaryKey[0])
		for _, v := range values {
			builder.Values(v[0], v[1])
		}
		query, args := builder.Query()
		if err := tx.Exec(ctx, query, args, &res); err != nil {
			return nil, rollback(tx, err)
		}
	}
	if len(uuo.removedFollowing) > 0 {
		eids := make([]int, len(uuo.removedFollowing))
		for eid := range uuo.removedFollowing {
			eid, serr := strconv.Atoi(eid)
			if serr != nil {
				err = rollback(tx, serr)
				return
			}
			eids = append(eids, eid)
		}
		query, args := sql.Delete(user.FollowingTable).
			Where(sql.InInts(user.FollowingPrimaryKey[0], ids...)).
			Where(sql.InInts(user.FollowingPrimaryKey[1], eids...)).
			Query()
		if err := tx.Exec(ctx, query, args, &res); err != nil {
			return nil, rollback(tx, err)
		}
	}
	if len(uuo.following) > 0 {
		values := make([][]int, 0, len(ids))
		for _, id := range ids {
			for eid := range uuo.following {
				eid, serr := strconv.Atoi(eid)
				if serr != nil {
					err = rollback(tx, serr)
					return
				}
				values = append(values, []int{id, eid})
			}
		}
		builder := sql.Insert(user.FollowingTable).
			Columns(user.FollowingPrimaryKey[0], user.FollowingPrimaryKey[1])
		for _, v := range values {
			builder.Values(v[0], v[1])
		}
		query, args := builder.Query()
		if err := tx.Exec(ctx, query, args, &res); err != nil {
			return nil, rollback(tx, err)
		}
	}
	if uuo.clearedTeam {
		query, args := sql.Update(user.TeamTable).
			SetNull(user.TeamColumn).
			Where(sql.InInts(pet.FieldID, ids...)).
			Query()
		if err := tx.Exec(ctx, query, args, &res); err != nil {
			return nil, rollback(tx, err)
		}
	}
	if len(uuo.team) > 0 {
		for _, id := range ids {
			eid, serr := strconv.Atoi(keys(uuo.team)[0])
			if serr != nil {
				return nil, rollback(tx, err)
			}
			query, args := sql.Update(user.TeamTable).
				Set(user.TeamColumn, id).
				Where(sql.EQ(pet.FieldID, eid).And().IsNull(user.TeamColumn)).
				Query()
			if err := tx.Exec(ctx, query, args, &res); err != nil {
				return nil, rollback(tx, err)
			}
			affected, err := res.RowsAffected()
			if err != nil {
				return nil, rollback(tx, err)
			}
			if int(affected) < len(uuo.team) {
				return nil, rollback(tx, &ErrConstraintFailed{msg: fmt.Sprintf("one of \"team\" %v already connected to a different \"User\"", keys(uuo.team))})
			}
		}
	}
	if uuo.clearedSpouse {
		query, args := sql.Update(user.SpouseTable).
			SetNull(user.SpouseColumn).
			Where(sql.InInts(user.FieldID, ids...)).
			Query()
		if err := tx.Exec(ctx, query, args, &res); err != nil {
			return nil, rollback(tx, err)
		}
		query, args = sql.Update(user.SpouseTable).
			SetNull(user.SpouseColumn).
			Where(sql.InInts(user.SpouseColumn, ids...)).
			Query()
		if err := tx.Exec(ctx, query, args, &res); err != nil {
			return nil, rollback(tx, err)
		}
	}
	if len(uuo.spouse) > 0 {
		if n := len(ids); n > 1 {
			return nil, rollback(tx, fmt.Errorf("ent: can't link O2O edge \"spouse\" to %d vertices (> 1)", n))
		}
		for eid := range uuo.spouse {
			eid, serr := strconv.Atoi(eid)
			if serr != nil {
				err = rollback(tx, serr)
				return
			}
			query, args := sql.Update(user.SpouseTable).
				Set(user.SpouseColumn, eid).
				Where(sql.EQ(user.FieldID, ids[0])).Query()
			if err := tx.Exec(ctx, query, args, &res); err != nil {
				return nil, rollback(tx, err)
			}
			query, args = sql.Update(user.SpouseTable).
				Set(user.SpouseColumn, ids[0]).
				Where(sql.EQ(user.FieldID, eid).And().IsNull(user.SpouseColumn)).Query()
			if err := tx.Exec(ctx, query, args, &res); err != nil {
				return nil, rollback(tx, err)
			}
			affected, err := res.RowsAffected()
			if err != nil {
				return nil, rollback(tx, err)
			}
			if int(affected) < len(uuo.spouse) {
				return nil, rollback(tx, &ErrConstraintFailed{msg: fmt.Sprintf("\"spouse\" (%v) already connected to a different \"User\"", eid)})
			}
		}
	}
	if len(uuo.removedChildren) > 0 {
		eids := make([]int, len(uuo.removedChildren))
		for eid := range uuo.removedChildren {
			eid, serr := strconv.Atoi(eid)
			if serr != nil {
				err = rollback(tx, serr)
				return
			}
			eids = append(eids, eid)
		}
		query, args := sql.Update(user.ChildrenTable).
			SetNull(user.ChildrenColumn).
			Where(sql.InInts(user.ChildrenColumn, ids...)).
			Where(sql.InInts(user.FieldID, eids...)).
			Query()
		if err := tx.Exec(ctx, query, args, &res); err != nil {
			return nil, rollback(tx, err)
		}
	}
	if len(uuo.children) > 0 {
		for _, id := range ids {
			p := sql.P()
			for eid := range uuo.children {
				eid, serr := strconv.Atoi(eid)
				if serr != nil {
					err = rollback(tx, serr)
					return
				}
				p.Or().EQ(user.FieldID, eid)
			}
			query, args := sql.Update(user.ChildrenTable).
				Set(user.ChildrenColumn, id).
				Where(sql.And(p, sql.IsNull(user.ChildrenColumn))).
				Query()
			if err := tx.Exec(ctx, query, args, &res); err != nil {
				return nil, rollback(tx, err)
			}
			affected, err := res.RowsAffected()
			if err != nil {
				return nil, rollback(tx, err)
			}
			if int(affected) < len(uuo.children) {
				return nil, rollback(tx, &ErrConstraintFailed{msg: fmt.Sprintf("one of \"children\" %v already connected to a different \"User\"", keys(uuo.children))})
			}
		}
	}
	if uuo.clearedParent {
		query, args := sql.Update(user.ParentTable).
			SetNull(user.ParentColumn).
			Where(sql.InInts(user.FieldID, ids...)).
			Query()
		if err := tx.Exec(ctx, query, args, &res); err != nil {
			return nil, rollback(tx, err)
		}
	}
	if len(uuo.parent) > 0 {
		for eid := range uuo.parent {
			eid, serr := strconv.Atoi(eid)
			if serr != nil {
				err = rollback(tx, serr)
				return
			}
			query, args := sql.Update(user.ParentTable).
				Set(user.ParentColumn, eid).
				Where(sql.InInts(user.FieldID, ids...)).
				Query()
			if err := tx.Exec(ctx, query, args, &res); err != nil {
				return nil, rollback(tx, err)
			}
		}
	}
	if err = tx.Commit(); err != nil {
		return nil, err
	}
	return u, nil
}

func (uuo *UserUpdateOne) gremlinSave(ctx context.Context) (*User, error) {
	res := &gremlin.Response{}
	query, bindings := uuo.gremlin(uuo.id).Query()
	if err := uuo.driver.Exec(ctx, query, bindings, res); err != nil {
		return nil, err
	}
	if err, ok := isConstantError(res); ok {
		return nil, err
	}
	u := &User{config: uuo.config}
	if err := u.FromResponse(res); err != nil {
		return nil, err
	}
	return u, nil
}

func (uuo *UserUpdateOne) gremlin(id string) *dsl.Traversal {
	type constraint struct {
		pred *dsl.Traversal // constraint predicate.
		test *dsl.Traversal // test matches and its constant.
	}
	constraints := make([]*constraint, 0, 8)
	v := g.V(id)
	var (
		rv  = v.Clone()
		trs []*dsl.Traversal
	)
	if uuo.age != nil {
		v.Property(dsl.Single, user.FieldAge, *uuo.age)
	}
	if uuo.name != nil {
		v.Property(dsl.Single, user.FieldName, *uuo.name)
	}
	if uuo.last != nil {
		v.Property(dsl.Single, user.FieldLast, *uuo.last)
	}
	if uuo.nickname != nil {
		constraints = append(constraints, &constraint{
			pred: g.V().Has(user.Label, user.FieldNickname, *uuo.nickname).Count(),
			test: __.Is(p.NEQ(0)).Constant(NewErrUniqueField(user.Label, user.FieldNickname, *uuo.nickname)),
		})
		v.Property(dsl.Single, user.FieldNickname, *uuo.nickname)
	}
	if uuo.phone != nil {
		constraints = append(constraints, &constraint{
			pred: g.V().Has(user.Label, user.FieldPhone, *uuo.phone).Count(),
			test: __.Is(p.NEQ(0)).Constant(NewErrUniqueField(user.Label, user.FieldPhone, *uuo.phone)),
		})
		v.Property(dsl.Single, user.FieldPhone, *uuo.phone)
	}
	if uuo.clearedCard {
		tr := rv.Clone().OutE(user.CardLabel).Drop().Iterate()
		trs = append(trs, tr)
	}
	for id := range uuo.card {
		v.AddE(user.CardLabel).To(g.V(id)).OutV()
		constraints = append(constraints, &constraint{
			pred: g.E().HasLabel(user.CardLabel).InV().HasID(id).Count(),
			test: __.Is(p.NEQ(0)).Constant(NewErrUniqueEdge(user.Label, user.CardLabel, id)),
		})
	}
	for id := range uuo.removedPets {
		tr := rv.Clone().OutE(user.PetsLabel).Where(__.OtherV().HasID(id)).Drop().Iterate()
		trs = append(trs, tr)
	}
	for id := range uuo.pets {
		v.AddE(user.PetsLabel).To(g.V(id)).OutV()
		constraints = append(constraints, &constraint{
			pred: g.E().HasLabel(user.PetsLabel).InV().HasID(id).Count(),
			test: __.Is(p.NEQ(0)).Constant(NewErrUniqueEdge(user.Label, user.PetsLabel, id)),
		})
	}
	for id := range uuo.removedFiles {
		tr := rv.Clone().OutE(user.FilesLabel).Where(__.OtherV().HasID(id)).Drop().Iterate()
		trs = append(trs, tr)
	}
	for id := range uuo.files {
		v.AddE(user.FilesLabel).To(g.V(id)).OutV()
		constraints = append(constraints, &constraint{
			pred: g.E().HasLabel(user.FilesLabel).InV().HasID(id).Count(),
			test: __.Is(p.NEQ(0)).Constant(NewErrUniqueEdge(user.Label, user.FilesLabel, id)),
		})
	}
	for id := range uuo.removedGroups {
		tr := rv.Clone().OutE(user.GroupsLabel).Where(__.OtherV().HasID(id)).Drop().Iterate()
		trs = append(trs, tr)
	}
	for id := range uuo.groups {
		v.AddE(user.GroupsLabel).To(g.V(id)).OutV()
	}
	for id := range uuo.removedFriends {
		tr := rv.Clone().BothE(user.FriendsLabel).Where(__.Or(__.InV().HasID(id), __.OutV().HasID(id))).Drop().Iterate()
		trs = append(trs, tr)
	}
	for id := range uuo.friends {
		v.AddE(user.FriendsLabel).To(g.V(id)).OutV()
	}
	for id := range uuo.removedFollowers {
		tr := rv.Clone().InE(user.FollowingLabel).Where(__.OtherV().HasID(id)).Drop().Iterate()
		trs = append(trs, tr)
	}
	for id := range uuo.followers {
		v.AddE(user.FollowingLabel).From(g.V(id)).InV()
	}
	for id := range uuo.removedFollowing {
		tr := rv.Clone().OutE(user.FollowingLabel).Where(__.OtherV().HasID(id)).Drop().Iterate()
		trs = append(trs, tr)
	}
	for id := range uuo.following {
		v.AddE(user.FollowingLabel).To(g.V(id)).OutV()
	}
	if uuo.clearedTeam {
		tr := rv.Clone().OutE(user.TeamLabel).Drop().Iterate()
		trs = append(trs, tr)
	}
	for id := range uuo.team {
		v.AddE(user.TeamLabel).To(g.V(id)).OutV()
		constraints = append(constraints, &constraint{
			pred: g.E().HasLabel(user.TeamLabel).InV().HasID(id).Count(),
			test: __.Is(p.NEQ(0)).Constant(NewErrUniqueEdge(user.Label, user.TeamLabel, id)),
		})
	}
	if uuo.clearedSpouse {
		tr := rv.Clone().BothE(user.SpouseLabel).Drop().Iterate()
		trs = append(trs, tr)
	}
	for id := range uuo.spouse {
		v.AddE(user.SpouseLabel).To(g.V(id)).OutV()
		constraints = append(constraints, &constraint{
			pred: rv.Clone().Both(user.SpouseLabel).Count(),
			test: __.Is(p.NEQ(0)).Constant(NewErrUniqueEdge(user.Label, user.SpouseLabel, id)),
		})
		constraints = append(constraints, &constraint{
			pred: g.E().HasLabel(user.SpouseLabel).Where(__.Or(__.InV().HasID(id), __.OutV().HasID(id))).Count(),
			test: __.Is(p.NEQ(0)).Constant(NewErrUniqueEdge(user.Label, user.SpouseLabel, id)),
		})
	}
	for id := range uuo.removedChildren {
		tr := rv.Clone().InE(user.ParentLabel).Where(__.OtherV().HasID(id)).Drop().Iterate()
		trs = append(trs, tr)
	}
	for id := range uuo.children {
		v.AddE(user.ParentLabel).From(g.V(id)).InV()
		constraints = append(constraints, &constraint{
			pred: g.E().HasLabel(user.ParentLabel).OutV().HasID(id).Count(),
			test: __.Is(p.NEQ(0)).Constant(NewErrUniqueEdge(user.Label, user.ParentLabel, id)),
		})
	}
	if uuo.clearedParent {
		tr := rv.Clone().OutE(user.ParentLabel).Drop().Iterate()
		trs = append(trs, tr)
	}
	for id := range uuo.parent {
		v.AddE(user.ParentLabel).To(g.V(id)).OutV()
	}
	v.ValueMap(true)
	if len(constraints) > 0 {
		v = constraints[0].pred.Coalesce(constraints[0].test, v)
		for _, cr := range constraints[1:] {
			v = cr.pred.Coalesce(cr.test, v)
		}
	}
	trs = append(trs, v)
	return dsl.Join(trs...)
}