// Code generated by ent, DO NOT EDIT.

package ent

import (
	"context"
	"errors"
	"fmt"
	"time"

	"entgo.io/ent/dialect/sql"
	"entgo.io/ent/dialect/sql/sqlgraph"
	"entgo.io/ent/schema/field"
	"github.com/google/uuid"
	"github.com/hay-kot/content/backend/ent/group"
	"github.com/hay-kot/content/backend/ent/item"
	"github.com/hay-kot/content/backend/ent/label"
	"github.com/hay-kot/content/backend/ent/predicate"
)

// LabelUpdate is the builder for updating Label entities.
type LabelUpdate struct {
	config
	hooks    []Hook
	mutation *LabelMutation
}

// Where appends a list predicates to the LabelUpdate builder.
func (lu *LabelUpdate) Where(ps ...predicate.Label) *LabelUpdate {
	lu.mutation.Where(ps...)
	return lu
}

// SetUpdatedAt sets the "updated_at" field.
func (lu *LabelUpdate) SetUpdatedAt(t time.Time) *LabelUpdate {
	lu.mutation.SetUpdatedAt(t)
	return lu
}

// SetName sets the "name" field.
func (lu *LabelUpdate) SetName(s string) *LabelUpdate {
	lu.mutation.SetName(s)
	return lu
}

// SetDescription sets the "description" field.
func (lu *LabelUpdate) SetDescription(s string) *LabelUpdate {
	lu.mutation.SetDescription(s)
	return lu
}

// SetNillableDescription sets the "description" field if the given value is not nil.
func (lu *LabelUpdate) SetNillableDescription(s *string) *LabelUpdate {
	if s != nil {
		lu.SetDescription(*s)
	}
	return lu
}

// ClearDescription clears the value of the "description" field.
func (lu *LabelUpdate) ClearDescription() *LabelUpdate {
	lu.mutation.ClearDescription()
	return lu
}

// SetColor sets the "color" field.
func (lu *LabelUpdate) SetColor(s string) *LabelUpdate {
	lu.mutation.SetColor(s)
	return lu
}

// SetNillableColor sets the "color" field if the given value is not nil.
func (lu *LabelUpdate) SetNillableColor(s *string) *LabelUpdate {
	if s != nil {
		lu.SetColor(*s)
	}
	return lu
}

// ClearColor clears the value of the "color" field.
func (lu *LabelUpdate) ClearColor() *LabelUpdate {
	lu.mutation.ClearColor()
	return lu
}

// SetGroupID sets the "group" edge to the Group entity by ID.
func (lu *LabelUpdate) SetGroupID(id uuid.UUID) *LabelUpdate {
	lu.mutation.SetGroupID(id)
	return lu
}

// SetGroup sets the "group" edge to the Group entity.
func (lu *LabelUpdate) SetGroup(g *Group) *LabelUpdate {
	return lu.SetGroupID(g.ID)
}

// AddItemIDs adds the "items" edge to the Item entity by IDs.
func (lu *LabelUpdate) AddItemIDs(ids ...uuid.UUID) *LabelUpdate {
	lu.mutation.AddItemIDs(ids...)
	return lu
}

// AddItems adds the "items" edges to the Item entity.
func (lu *LabelUpdate) AddItems(i ...*Item) *LabelUpdate {
	ids := make([]uuid.UUID, len(i))
	for j := range i {
		ids[j] = i[j].ID
	}
	return lu.AddItemIDs(ids...)
}

// Mutation returns the LabelMutation object of the builder.
func (lu *LabelUpdate) Mutation() *LabelMutation {
	return lu.mutation
}

// ClearGroup clears the "group" edge to the Group entity.
func (lu *LabelUpdate) ClearGroup() *LabelUpdate {
	lu.mutation.ClearGroup()
	return lu
}

// ClearItems clears all "items" edges to the Item entity.
func (lu *LabelUpdate) ClearItems() *LabelUpdate {
	lu.mutation.ClearItems()
	return lu
}

// RemoveItemIDs removes the "items" edge to Item entities by IDs.
func (lu *LabelUpdate) RemoveItemIDs(ids ...uuid.UUID) *LabelUpdate {
	lu.mutation.RemoveItemIDs(ids...)
	return lu
}

// RemoveItems removes "items" edges to Item entities.
func (lu *LabelUpdate) RemoveItems(i ...*Item) *LabelUpdate {
	ids := make([]uuid.UUID, len(i))
	for j := range i {
		ids[j] = i[j].ID
	}
	return lu.RemoveItemIDs(ids...)
}

// Save executes the query and returns the number of nodes affected by the update operation.
func (lu *LabelUpdate) Save(ctx context.Context) (int, error) {
	var (
		err      error
		affected int
	)
	lu.defaults()
	if len(lu.hooks) == 0 {
		if err = lu.check(); err != nil {
			return 0, err
		}
		affected, err = lu.sqlSave(ctx)
	} else {
		var mut Mutator = MutateFunc(func(ctx context.Context, m Mutation) (Value, error) {
			mutation, ok := m.(*LabelMutation)
			if !ok {
				return nil, fmt.Errorf("unexpected mutation type %T", m)
			}
			if err = lu.check(); err != nil {
				return 0, err
			}
			lu.mutation = mutation
			affected, err = lu.sqlSave(ctx)
			mutation.done = true
			return affected, err
		})
		for i := len(lu.hooks) - 1; i >= 0; i-- {
			if lu.hooks[i] == nil {
				return 0, fmt.Errorf("ent: uninitialized hook (forgotten import ent/runtime?)")
			}
			mut = lu.hooks[i](mut)
		}
		if _, err := mut.Mutate(ctx, lu.mutation); err != nil {
			return 0, err
		}
	}
	return affected, err
}

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

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

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

// defaults sets the default values of the builder before save.
func (lu *LabelUpdate) defaults() {
	if _, ok := lu.mutation.UpdatedAt(); !ok {
		v := label.UpdateDefaultUpdatedAt()
		lu.mutation.SetUpdatedAt(v)
	}
}

// check runs all checks and user-defined validators on the builder.
func (lu *LabelUpdate) check() error {
	if v, ok := lu.mutation.Name(); ok {
		if err := label.NameValidator(v); err != nil {
			return &ValidationError{Name: "name", err: fmt.Errorf(`ent: validator failed for field "Label.name": %w`, err)}
		}
	}
	if v, ok := lu.mutation.Description(); ok {
		if err := label.DescriptionValidator(v); err != nil {
			return &ValidationError{Name: "description", err: fmt.Errorf(`ent: validator failed for field "Label.description": %w`, err)}
		}
	}
	if v, ok := lu.mutation.Color(); ok {
		if err := label.ColorValidator(v); err != nil {
			return &ValidationError{Name: "color", err: fmt.Errorf(`ent: validator failed for field "Label.color": %w`, err)}
		}
	}
	if _, ok := lu.mutation.GroupID(); lu.mutation.GroupCleared() && !ok {
		return errors.New(`ent: clearing a required unique edge "Label.group"`)
	}
	return nil
}

func (lu *LabelUpdate) sqlSave(ctx context.Context) (n int, err error) {
	_spec := &sqlgraph.UpdateSpec{
		Node: &sqlgraph.NodeSpec{
			Table:   label.Table,
			Columns: label.Columns,
			ID: &sqlgraph.FieldSpec{
				Type:   field.TypeUUID,
				Column: label.FieldID,
			},
		},
	}
	if ps := lu.mutation.predicates; len(ps) > 0 {
		_spec.Predicate = func(selector *sql.Selector) {
			for i := range ps {
				ps[i](selector)
			}
		}
	}
	if value, ok := lu.mutation.UpdatedAt(); ok {
		_spec.Fields.Set = append(_spec.Fields.Set, &sqlgraph.FieldSpec{
			Type:   field.TypeTime,
			Value:  value,
			Column: label.FieldUpdatedAt,
		})
	}
	if value, ok := lu.mutation.Name(); ok {
		_spec.Fields.Set = append(_spec.Fields.Set, &sqlgraph.FieldSpec{
			Type:   field.TypeString,
			Value:  value,
			Column: label.FieldName,
		})
	}
	if value, ok := lu.mutation.Description(); ok {
		_spec.Fields.Set = append(_spec.Fields.Set, &sqlgraph.FieldSpec{
			Type:   field.TypeString,
			Value:  value,
			Column: label.FieldDescription,
		})
	}
	if lu.mutation.DescriptionCleared() {
		_spec.Fields.Clear = append(_spec.Fields.Clear, &sqlgraph.FieldSpec{
			Type:   field.TypeString,
			Column: label.FieldDescription,
		})
	}
	if value, ok := lu.mutation.Color(); ok {
		_spec.Fields.Set = append(_spec.Fields.Set, &sqlgraph.FieldSpec{
			Type:   field.TypeString,
			Value:  value,
			Column: label.FieldColor,
		})
	}
	if lu.mutation.ColorCleared() {
		_spec.Fields.Clear = append(_spec.Fields.Clear, &sqlgraph.FieldSpec{
			Type:   field.TypeString,
			Column: label.FieldColor,
		})
	}
	if lu.mutation.GroupCleared() {
		edge := &sqlgraph.EdgeSpec{
			Rel:     sqlgraph.M2O,
			Inverse: true,
			Table:   label.GroupTable,
			Columns: []string{label.GroupColumn},
			Bidi:    false,
			Target: &sqlgraph.EdgeTarget{
				IDSpec: &sqlgraph.FieldSpec{
					Type:   field.TypeUUID,
					Column: group.FieldID,
				},
			},
		}
		_spec.Edges.Clear = append(_spec.Edges.Clear, edge)
	}
	if nodes := lu.mutation.GroupIDs(); len(nodes) > 0 {
		edge := &sqlgraph.EdgeSpec{
			Rel:     sqlgraph.M2O,
			Inverse: true,
			Table:   label.GroupTable,
			Columns: []string{label.GroupColumn},
			Bidi:    false,
			Target: &sqlgraph.EdgeTarget{
				IDSpec: &sqlgraph.FieldSpec{
					Type:   field.TypeUUID,
					Column: group.FieldID,
				},
			},
		}
		for _, k := range nodes {
			edge.Target.Nodes = append(edge.Target.Nodes, k)
		}
		_spec.Edges.Add = append(_spec.Edges.Add, edge)
	}
	if lu.mutation.ItemsCleared() {
		edge := &sqlgraph.EdgeSpec{
			Rel:     sqlgraph.M2M,
			Inverse: false,
			Table:   label.ItemsTable,
			Columns: label.ItemsPrimaryKey,
			Bidi:    false,
			Target: &sqlgraph.EdgeTarget{
				IDSpec: &sqlgraph.FieldSpec{
					Type:   field.TypeUUID,
					Column: item.FieldID,
				},
			},
		}
		_spec.Edges.Clear = append(_spec.Edges.Clear, edge)
	}
	if nodes := lu.mutation.RemovedItemsIDs(); len(nodes) > 0 && !lu.mutation.ItemsCleared() {
		edge := &sqlgraph.EdgeSpec{
			Rel:     sqlgraph.M2M,
			Inverse: false,
			Table:   label.ItemsTable,
			Columns: label.ItemsPrimaryKey,
			Bidi:    false,
			Target: &sqlgraph.EdgeTarget{
				IDSpec: &sqlgraph.FieldSpec{
					Type:   field.TypeUUID,
					Column: item.FieldID,
				},
			},
		}
		for _, k := range nodes {
			edge.Target.Nodes = append(edge.Target.Nodes, k)
		}
		_spec.Edges.Clear = append(_spec.Edges.Clear, edge)
	}
	if nodes := lu.mutation.ItemsIDs(); len(nodes) > 0 {
		edge := &sqlgraph.EdgeSpec{
			Rel:     sqlgraph.M2M,
			Inverse: false,
			Table:   label.ItemsTable,
			Columns: label.ItemsPrimaryKey,
			Bidi:    false,
			Target: &sqlgraph.EdgeTarget{
				IDSpec: &sqlgraph.FieldSpec{
					Type:   field.TypeUUID,
					Column: item.FieldID,
				},
			},
		}
		for _, k := range nodes {
			edge.Target.Nodes = append(edge.Target.Nodes, k)
		}
		_spec.Edges.Add = append(_spec.Edges.Add, edge)
	}
	if n, err = sqlgraph.UpdateNodes(ctx, lu.driver, _spec); err != nil {
		if _, ok := err.(*sqlgraph.NotFoundError); ok {
			err = &NotFoundError{label.Label}
		} else if sqlgraph.IsConstraintError(err) {
			err = &ConstraintError{msg: err.Error(), wrap: err}
		}
		return 0, err
	}
	return n, nil
}

// LabelUpdateOne is the builder for updating a single Label entity.
type LabelUpdateOne struct {
	config
	fields   []string
	hooks    []Hook
	mutation *LabelMutation
}

// SetUpdatedAt sets the "updated_at" field.
func (luo *LabelUpdateOne) SetUpdatedAt(t time.Time) *LabelUpdateOne {
	luo.mutation.SetUpdatedAt(t)
	return luo
}

// SetName sets the "name" field.
func (luo *LabelUpdateOne) SetName(s string) *LabelUpdateOne {
	luo.mutation.SetName(s)
	return luo
}

// SetDescription sets the "description" field.
func (luo *LabelUpdateOne) SetDescription(s string) *LabelUpdateOne {
	luo.mutation.SetDescription(s)
	return luo
}

// SetNillableDescription sets the "description" field if the given value is not nil.
func (luo *LabelUpdateOne) SetNillableDescription(s *string) *LabelUpdateOne {
	if s != nil {
		luo.SetDescription(*s)
	}
	return luo
}

// ClearDescription clears the value of the "description" field.
func (luo *LabelUpdateOne) ClearDescription() *LabelUpdateOne {
	luo.mutation.ClearDescription()
	return luo
}

// SetColor sets the "color" field.
func (luo *LabelUpdateOne) SetColor(s string) *LabelUpdateOne {
	luo.mutation.SetColor(s)
	return luo
}

// SetNillableColor sets the "color" field if the given value is not nil.
func (luo *LabelUpdateOne) SetNillableColor(s *string) *LabelUpdateOne {
	if s != nil {
		luo.SetColor(*s)
	}
	return luo
}

// ClearColor clears the value of the "color" field.
func (luo *LabelUpdateOne) ClearColor() *LabelUpdateOne {
	luo.mutation.ClearColor()
	return luo
}

// SetGroupID sets the "group" edge to the Group entity by ID.
func (luo *LabelUpdateOne) SetGroupID(id uuid.UUID) *LabelUpdateOne {
	luo.mutation.SetGroupID(id)
	return luo
}

// SetGroup sets the "group" edge to the Group entity.
func (luo *LabelUpdateOne) SetGroup(g *Group) *LabelUpdateOne {
	return luo.SetGroupID(g.ID)
}

// AddItemIDs adds the "items" edge to the Item entity by IDs.
func (luo *LabelUpdateOne) AddItemIDs(ids ...uuid.UUID) *LabelUpdateOne {
	luo.mutation.AddItemIDs(ids...)
	return luo
}

// AddItems adds the "items" edges to the Item entity.
func (luo *LabelUpdateOne) AddItems(i ...*Item) *LabelUpdateOne {
	ids := make([]uuid.UUID, len(i))
	for j := range i {
		ids[j] = i[j].ID
	}
	return luo.AddItemIDs(ids...)
}

// Mutation returns the LabelMutation object of the builder.
func (luo *LabelUpdateOne) Mutation() *LabelMutation {
	return luo.mutation
}

// ClearGroup clears the "group" edge to the Group entity.
func (luo *LabelUpdateOne) ClearGroup() *LabelUpdateOne {
	luo.mutation.ClearGroup()
	return luo
}

// ClearItems clears all "items" edges to the Item entity.
func (luo *LabelUpdateOne) ClearItems() *LabelUpdateOne {
	luo.mutation.ClearItems()
	return luo
}

// RemoveItemIDs removes the "items" edge to Item entities by IDs.
func (luo *LabelUpdateOne) RemoveItemIDs(ids ...uuid.UUID) *LabelUpdateOne {
	luo.mutation.RemoveItemIDs(ids...)
	return luo
}

// RemoveItems removes "items" edges to Item entities.
func (luo *LabelUpdateOne) RemoveItems(i ...*Item) *LabelUpdateOne {
	ids := make([]uuid.UUID, len(i))
	for j := range i {
		ids[j] = i[j].ID
	}
	return luo.RemoveItemIDs(ids...)
}

// Select allows selecting one or more fields (columns) of the returned entity.
// The default is selecting all fields defined in the entity schema.
func (luo *LabelUpdateOne) Select(field string, fields ...string) *LabelUpdateOne {
	luo.fields = append([]string{field}, fields...)
	return luo
}

// Save executes the query and returns the updated Label entity.
func (luo *LabelUpdateOne) Save(ctx context.Context) (*Label, error) {
	var (
		err  error
		node *Label
	)
	luo.defaults()
	if len(luo.hooks) == 0 {
		if err = luo.check(); err != nil {
			return nil, err
		}
		node, err = luo.sqlSave(ctx)
	} else {
		var mut Mutator = MutateFunc(func(ctx context.Context, m Mutation) (Value, error) {
			mutation, ok := m.(*LabelMutation)
			if !ok {
				return nil, fmt.Errorf("unexpected mutation type %T", m)
			}
			if err = luo.check(); err != nil {
				return nil, err
			}
			luo.mutation = mutation
			node, err = luo.sqlSave(ctx)
			mutation.done = true
			return node, err
		})
		for i := len(luo.hooks) - 1; i >= 0; i-- {
			if luo.hooks[i] == nil {
				return nil, fmt.Errorf("ent: uninitialized hook (forgotten import ent/runtime?)")
			}
			mut = luo.hooks[i](mut)
		}
		v, err := mut.Mutate(ctx, luo.mutation)
		if err != nil {
			return nil, err
		}
		nv, ok := v.(*Label)
		if !ok {
			return nil, fmt.Errorf("unexpected node type %T returned from LabelMutation", v)
		}
		node = nv
	}
	return node, err
}

// SaveX is like Save, but panics if an error occurs.
func (luo *LabelUpdateOne) SaveX(ctx context.Context) *Label {
	node, err := luo.Save(ctx)
	if err != nil {
		panic(err)
	}
	return node
}

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

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

// defaults sets the default values of the builder before save.
func (luo *LabelUpdateOne) defaults() {
	if _, ok := luo.mutation.UpdatedAt(); !ok {
		v := label.UpdateDefaultUpdatedAt()
		luo.mutation.SetUpdatedAt(v)
	}
}

// check runs all checks and user-defined validators on the builder.
func (luo *LabelUpdateOne) check() error {
	if v, ok := luo.mutation.Name(); ok {
		if err := label.NameValidator(v); err != nil {
			return &ValidationError{Name: "name", err: fmt.Errorf(`ent: validator failed for field "Label.name": %w`, err)}
		}
	}
	if v, ok := luo.mutation.Description(); ok {
		if err := label.DescriptionValidator(v); err != nil {
			return &ValidationError{Name: "description", err: fmt.Errorf(`ent: validator failed for field "Label.description": %w`, err)}
		}
	}
	if v, ok := luo.mutation.Color(); ok {
		if err := label.ColorValidator(v); err != nil {
			return &ValidationError{Name: "color", err: fmt.Errorf(`ent: validator failed for field "Label.color": %w`, err)}
		}
	}
	if _, ok := luo.mutation.GroupID(); luo.mutation.GroupCleared() && !ok {
		return errors.New(`ent: clearing a required unique edge "Label.group"`)
	}
	return nil
}

func (luo *LabelUpdateOne) sqlSave(ctx context.Context) (_node *Label, err error) {
	_spec := &sqlgraph.UpdateSpec{
		Node: &sqlgraph.NodeSpec{
			Table:   label.Table,
			Columns: label.Columns,
			ID: &sqlgraph.FieldSpec{
				Type:   field.TypeUUID,
				Column: label.FieldID,
			},
		},
	}
	id, ok := luo.mutation.ID()
	if !ok {
		return nil, &ValidationError{Name: "id", err: errors.New(`ent: missing "Label.id" for update`)}
	}
	_spec.Node.ID.Value = id
	if fields := luo.fields; len(fields) > 0 {
		_spec.Node.Columns = make([]string, 0, len(fields))
		_spec.Node.Columns = append(_spec.Node.Columns, label.FieldID)
		for _, f := range fields {
			if !label.ValidColumn(f) {
				return nil, &ValidationError{Name: f, err: fmt.Errorf("ent: invalid field %q for query", f)}
			}
			if f != label.FieldID {
				_spec.Node.Columns = append(_spec.Node.Columns, f)
			}
		}
	}
	if ps := luo.mutation.predicates; len(ps) > 0 {
		_spec.Predicate = func(selector *sql.Selector) {
			for i := range ps {
				ps[i](selector)
			}
		}
	}
	if value, ok := luo.mutation.UpdatedAt(); ok {
		_spec.Fields.Set = append(_spec.Fields.Set, &sqlgraph.FieldSpec{
			Type:   field.TypeTime,
			Value:  value,
			Column: label.FieldUpdatedAt,
		})
	}
	if value, ok := luo.mutation.Name(); ok {
		_spec.Fields.Set = append(_spec.Fields.Set, &sqlgraph.FieldSpec{
			Type:   field.TypeString,
			Value:  value,
			Column: label.FieldName,
		})
	}
	if value, ok := luo.mutation.Description(); ok {
		_spec.Fields.Set = append(_spec.Fields.Set, &sqlgraph.FieldSpec{
			Type:   field.TypeString,
			Value:  value,
			Column: label.FieldDescription,
		})
	}
	if luo.mutation.DescriptionCleared() {
		_spec.Fields.Clear = append(_spec.Fields.Clear, &sqlgraph.FieldSpec{
			Type:   field.TypeString,
			Column: label.FieldDescription,
		})
	}
	if value, ok := luo.mutation.Color(); ok {
		_spec.Fields.Set = append(_spec.Fields.Set, &sqlgraph.FieldSpec{
			Type:   field.TypeString,
			Value:  value,
			Column: label.FieldColor,
		})
	}
	if luo.mutation.ColorCleared() {
		_spec.Fields.Clear = append(_spec.Fields.Clear, &sqlgraph.FieldSpec{
			Type:   field.TypeString,
			Column: label.FieldColor,
		})
	}
	if luo.mutation.GroupCleared() {
		edge := &sqlgraph.EdgeSpec{
			Rel:     sqlgraph.M2O,
			Inverse: true,
			Table:   label.GroupTable,
			Columns: []string{label.GroupColumn},
			Bidi:    false,
			Target: &sqlgraph.EdgeTarget{
				IDSpec: &sqlgraph.FieldSpec{
					Type:   field.TypeUUID,
					Column: group.FieldID,
				},
			},
		}
		_spec.Edges.Clear = append(_spec.Edges.Clear, edge)
	}
	if nodes := luo.mutation.GroupIDs(); len(nodes) > 0 {
		edge := &sqlgraph.EdgeSpec{
			Rel:     sqlgraph.M2O,
			Inverse: true,
			Table:   label.GroupTable,
			Columns: []string{label.GroupColumn},
			Bidi:    false,
			Target: &sqlgraph.EdgeTarget{
				IDSpec: &sqlgraph.FieldSpec{
					Type:   field.TypeUUID,
					Column: group.FieldID,
				},
			},
		}
		for _, k := range nodes {
			edge.Target.Nodes = append(edge.Target.Nodes, k)
		}
		_spec.Edges.Add = append(_spec.Edges.Add, edge)
	}
	if luo.mutation.ItemsCleared() {
		edge := &sqlgraph.EdgeSpec{
			Rel:     sqlgraph.M2M,
			Inverse: false,
			Table:   label.ItemsTable,
			Columns: label.ItemsPrimaryKey,
			Bidi:    false,
			Target: &sqlgraph.EdgeTarget{
				IDSpec: &sqlgraph.FieldSpec{
					Type:   field.TypeUUID,
					Column: item.FieldID,
				},
			},
		}
		_spec.Edges.Clear = append(_spec.Edges.Clear, edge)
	}
	if nodes := luo.mutation.RemovedItemsIDs(); len(nodes) > 0 && !luo.mutation.ItemsCleared() {
		edge := &sqlgraph.EdgeSpec{
			Rel:     sqlgraph.M2M,
			Inverse: false,
			Table:   label.ItemsTable,
			Columns: label.ItemsPrimaryKey,
			Bidi:    false,
			Target: &sqlgraph.EdgeTarget{
				IDSpec: &sqlgraph.FieldSpec{
					Type:   field.TypeUUID,
					Column: item.FieldID,
				},
			},
		}
		for _, k := range nodes {
			edge.Target.Nodes = append(edge.Target.Nodes, k)
		}
		_spec.Edges.Clear = append(_spec.Edges.Clear, edge)
	}
	if nodes := luo.mutation.ItemsIDs(); len(nodes) > 0 {
		edge := &sqlgraph.EdgeSpec{
			Rel:     sqlgraph.M2M,
			Inverse: false,
			Table:   label.ItemsTable,
			Columns: label.ItemsPrimaryKey,
			Bidi:    false,
			Target: &sqlgraph.EdgeTarget{
				IDSpec: &sqlgraph.FieldSpec{
					Type:   field.TypeUUID,
					Column: item.FieldID,
				},
			},
		}
		for _, k := range nodes {
			edge.Target.Nodes = append(edge.Target.Nodes, k)
		}
		_spec.Edges.Add = append(_spec.Edges.Add, edge)
	}
	_node = &Label{config: luo.config}
	_spec.Assign = _node.assignValues
	_spec.ScanValues = _node.scanValues
	if err = sqlgraph.UpdateNode(ctx, luo.driver, _spec); err != nil {
		if _, ok := err.(*sqlgraph.NotFoundError); ok {
			err = &NotFoundError{label.Label}
		} else if sqlgraph.IsConstraintError(err) {
			err = &ConstraintError{msg: err.Error(), wrap: err}
		}
		return nil, err
	}
	return _node, nil
}