city_update.go

// 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 ent

import (
	"context"

	"github.com/facebookincubator/ent/dialect/sql"
	"github.com/facebookincubator/ent/dialect/sql/sqlgraph"
	"github.com/facebookincubator/ent/examples/edgeindex/ent/city"
	"github.com/facebookincubator/ent/examples/edgeindex/ent/predicate"
	"github.com/facebookincubator/ent/examples/edgeindex/ent/street"
	"github.com/facebookincubator/ent/schema/field"
)

// CityUpdate is the builder for updating City entities.
type CityUpdate struct {
	config
	name           *string
	streets        map[int]struct{}
	removedStreets map[int]struct{}
	predicates     []predicate.City
}

// Where adds a new predicate for the builder.
func (cu *CityUpdate) Where(ps ...predicate.City) *CityUpdate {
	cu.predicates = append(cu.predicates, ps...)
	return cu
}

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

// AddStreetIDs adds the streets edge to Street by ids.
func (cu *CityUpdate) AddStreetIDs(ids ...int) *CityUpdate {
	if cu.streets == nil {
		cu.streets = make(map[int]struct{})
	}
	for i := range ids {
		cu.streets[ids[i]] = struct{}{}
	}
	return cu
}

// AddStreets adds the streets edges to Street.
func (cu *CityUpdate) AddStreets(s ...*Street) *CityUpdate {
	ids := make([]int, len(s))
	for i := range s {
		ids[i] = s[i].ID
	}
	return cu.AddStreetIDs(ids...)
}

// RemoveStreetIDs removes the streets edge to Street by ids.
func (cu *CityUpdate) RemoveStreetIDs(ids ...int) *CityUpdate {
	if cu.removedStreets == nil {
		cu.removedStreets = make(map[int]struct{})
	}
	for i := range ids {
		cu.removedStreets[ids[i]] = struct{}{}
	}
	return cu
}

// RemoveStreets removes streets edges to Street.
func (cu *CityUpdate) RemoveStreets(s ...*Street) *CityUpdate {
	ids := make([]int, len(s))
	for i := range s {
		ids[i] = s[i].ID
	}
	return cu.RemoveStreetIDs(ids...)
}

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

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

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

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

func (cu *CityUpdate) sqlSave(ctx context.Context) (n int, err error) {
	spec := &sqlgraph.UpdateSpec{
		Node: &sqlgraph.NodeSpec{
			Table:   city.Table,
			Columns: city.Columns,
			ID: &sqlgraph.FieldSpec{
				Type:   field.TypeInt,
				Column: city.FieldID,
			},
		},
	}
	if ps := cu.predicates; len(ps) > 0 {
		spec.Predicate = func(selector *sql.Selector) {
			for i := range ps {
				ps[i](selector)
			}
		}
	}
	if value := cu.name; value != nil {
		spec.Fields.Set = append(spec.Fields.Set, &sqlgraph.FieldSpec{
			Type:   field.TypeString,
			Value:  *value,
			Column: city.FieldName,
		})
	}
	if nodes := cu.removedStreets; len(nodes) > 0 {
		edge := &sqlgraph.EdgeSpec{
			Rel:     sqlgraph.O2M,
			Inverse: false,
			Table:   city.StreetsTable,
			Columns: []string{city.StreetsColumn},
			Bidi:    false,
			Target: &sqlgraph.EdgeTarget{
				IDSpec: &sqlgraph.FieldSpec{
					Type:   field.TypeInt,
					Column: street.FieldID,
				},
			},
		}
		for k, _ := range nodes {
			edge.Target.Nodes = append(edge.Target.Nodes, k)
		}
		spec.Edges.Clear = append(spec.Edges.Clear, edge)
	}
	if nodes := cu.streets; len(nodes) > 0 {
		edge := &sqlgraph.EdgeSpec{
			Rel:     sqlgraph.O2M,
			Inverse: false,
			Table:   city.StreetsTable,
			Columns: []string{city.StreetsColumn},
			Bidi:    false,
			Target: &sqlgraph.EdgeTarget{
				IDSpec: &sqlgraph.FieldSpec{
					Type:   field.TypeInt,
					Column: street.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, cu.driver, spec); err != nil {
		if cerr, ok := isSQLConstraintError(err); ok {
			err = cerr
		}
		return 0, err
	}
	return n, nil
}

// CityUpdateOne is the builder for updating a single City entity.
type CityUpdateOne struct {
	config
	id             int
	name           *string
	streets        map[int]struct{}
	removedStreets map[int]struct{}
}

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

// AddStreetIDs adds the streets edge to Street by ids.
func (cuo *CityUpdateOne) AddStreetIDs(ids ...int) *CityUpdateOne {
	if cuo.streets == nil {
		cuo.streets = make(map[int]struct{})
	}
	for i := range ids {
		cuo.streets[ids[i]] = struct{}{}
	}
	return cuo
}

// AddStreets adds the streets edges to Street.
func (cuo *CityUpdateOne) AddStreets(s ...*Street) *CityUpdateOne {
	ids := make([]int, len(s))
	for i := range s {
		ids[i] = s[i].ID
	}
	return cuo.AddStreetIDs(ids...)
}

// RemoveStreetIDs removes the streets edge to Street by ids.
func (cuo *CityUpdateOne) RemoveStreetIDs(ids ...int) *CityUpdateOne {
	if cuo.removedStreets == nil {
		cuo.removedStreets = make(map[int]struct{})
	}
	for i := range ids {
		cuo.removedStreets[ids[i]] = struct{}{}
	}
	return cuo
}

// RemoveStreets removes streets edges to Street.
func (cuo *CityUpdateOne) RemoveStreets(s ...*Street) *CityUpdateOne {
	ids := make([]int, len(s))
	for i := range s {
		ids[i] = s[i].ID
	}
	return cuo.RemoveStreetIDs(ids...)
}

// Save executes the query and returns the updated entity.
func (cuo *CityUpdateOne) Save(ctx context.Context) (*City, error) {
	return cuo.sqlSave(ctx)
}

// SaveX is like Save, but panics if an error occurs.
func (cuo *CityUpdateOne) SaveX(ctx context.Context) *City {
	c, err := cuo.Save(ctx)
	if err != nil {
		panic(err)
	}
	return c
}

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

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

func (cuo *CityUpdateOne) sqlSave(ctx context.Context) (c *City, err error) {
	spec := &sqlgraph.UpdateSpec{
		Node: &sqlgraph.NodeSpec{
			Table:   city.Table,
			Columns: city.Columns,
			ID: &sqlgraph.FieldSpec{
				Value:  cuo.id,
				Type:   field.TypeInt,
				Column: city.FieldID,
			},
		},
	}
	if value := cuo.name; value != nil {
		spec.Fields.Set = append(spec.Fields.Set, &sqlgraph.FieldSpec{
			Type:   field.TypeString,
			Value:  *value,
			Column: city.FieldName,
		})
	}
	if nodes := cuo.removedStreets; len(nodes) > 0 {
		edge := &sqlgraph.EdgeSpec{
			Rel:     sqlgraph.O2M,
			Inverse: false,
			Table:   city.StreetsTable,
			Columns: []string{city.StreetsColumn},
			Bidi:    false,
			Target: &sqlgraph.EdgeTarget{
				IDSpec: &sqlgraph.FieldSpec{
					Type:   field.TypeInt,
					Column: street.FieldID,
				},
			},
		}
		for k, _ := range nodes {
			edge.Target.Nodes = append(edge.Target.Nodes, k)
		}
		spec.Edges.Clear = append(spec.Edges.Clear, edge)
	}
	if nodes := cuo.streets; len(nodes) > 0 {
		edge := &sqlgraph.EdgeSpec{
			Rel:     sqlgraph.O2M,
			Inverse: false,
			Table:   city.StreetsTable,
			Columns: []string{city.StreetsColumn},
			Bidi:    false,
			Target: &sqlgraph.EdgeTarget{
				IDSpec: &sqlgraph.FieldSpec{
					Type:   field.TypeInt,
					Column: street.FieldID,
				},
			},
		}
		for k, _ := range nodes {
			edge.Target.Nodes = append(edge.Target.Nodes, k)
		}
		spec.Edges.Add = append(spec.Edges.Add, edge)
	}
	c = &City{config: cuo.config}
	spec.Assign = c.assignValues
	spec.ScanValues = c.scanValues()
	if err = sqlgraph.UpdateNode(ctx, cuo.driver, spec); err != nil {
		if cerr, ok := isSQLConstraintError(err); ok {
			err = cerr
		}
		return nil, err
	}
	return c, nil
}