// Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
// This source code is licensed under the Apache 2.0 license found
// in the LICENSE file in the root directory of this source tree.

// Code generated by entc, DO NOT EDIT.

package entv2

import (
	"context"

	"github.com/facebookincubator/ent/dialect/sql"
	"github.com/facebookincubator/ent/dialect/sql/sqlgraph"
	"github.com/facebookincubator/ent/entc/integration/migrate/entv2/pet"
	"github.com/facebookincubator/ent/entc/integration/migrate/entv2/predicate"
	"github.com/facebookincubator/ent/schema/field"
)

// PetUpdate is the builder for updating Pet entities.
type PetUpdate struct {
	config
	predicates []predicate.Pet
}

// Where adds a new predicate for the builder.
func (pu *PetUpdate) Where(ps ...predicate.Pet) *PetUpdate {
	pu.predicates = append(pu.predicates, ps...)
	return pu
}

// Save executes the query and returns the number of rows/vertices matched by this operation.
func (pu *PetUpdate) Save(ctx context.Context) (int, error) {
	return pu.sqlSave(ctx)
}

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

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

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

func (pu *PetUpdate) sqlSave(ctx context.Context) (n int, err error) {
	_spec := &sqlgraph.UpdateSpec{
		Node: &sqlgraph.NodeSpec{
			Table:   pet.Table,
			Columns: pet.Columns,
			ID: &sqlgraph.FieldSpec{
				Type:   field.TypeInt,
				Column: pet.FieldID,
			},
		},
	}
	if ps := pu.predicates; len(ps) > 0 {
		_spec.Predicate = func(selector *sql.Selector) {
			for i := range ps {
				ps[i](selector)
			}
		}
	}
	if n, err = sqlgraph.UpdateNodes(ctx, pu.driver, _spec); err != nil {
		if cerr, ok := isSQLConstraintError(err); ok {
			err = cerr
		}
		return 0, err
	}
	return n, nil
}

// PetUpdateOne is the builder for updating a single Pet entity.
type PetUpdateOne struct {
	config
	id int
}

// Save executes the query and returns the updated entity.
func (puo *PetUpdateOne) Save(ctx context.Context) (*Pet, error) {
	return puo.sqlSave(ctx)
}

// SaveX is like Save, but panics if an error occurs.
func (puo *PetUpdateOne) SaveX(ctx context.Context) *Pet {
	pe, err := puo.Save(ctx)
	if err != nil {
		panic(err)
	}
	return pe
}

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

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

func (puo *PetUpdateOne) sqlSave(ctx context.Context) (pe *Pet, err error) {
	_spec := &sqlgraph.UpdateSpec{
		Node: &sqlgraph.NodeSpec{
			Table:   pet.Table,
			Columns: pet.Columns,
			ID: &sqlgraph.FieldSpec{
				Value:  puo.id,
				Type:   field.TypeInt,
				Column: pet.FieldID,
			},
		},
	}
	pe = &Pet{config: puo.config}
	_spec.Assign = pe.assignValues
	_spec.ScanValues = pe.scanValues()
	if err = sqlgraph.UpdateNode(ctx, puo.driver, _spec); err != nil {
		if cerr, ok := isSQLConstraintError(err); ok {
			err = cerr
		}
		return nil, err
	}
	return pe, nil
}