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// Copyright 2019-present Facebook Inc. 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"
"fmt"
"github.com/facebook/ent/dialect/sql"
"github.com/facebook/ent/dialect/sql/sqlgraph"
"github.com/facebook/ent/entc/integration/ent/pet"
"github.com/facebook/ent/entc/integration/ent/predicate"
"github.com/facebook/ent/schema/field"
)
// PetDelete is the builder for deleting a Pet entity.
type PetDelete struct {
config
hooks []Hook
mutation *PetMutation
}
// Where adds a new predicate to the PetDelete builder.
func (pd *PetDelete) Where(ps ...predicate.Pet) *PetDelete {
pd.mutation.predicates = append(pd.mutation.predicates, ps...)
return pd
}
// Exec executes the deletion query and returns how many vertices were deleted.
func (pd *PetDelete) Exec(ctx context.Context) (int, error) {
var (
err error
affected int
)
if len(pd.hooks) == 0 {
affected, err = pd.sqlExec(ctx)
} else {
var mut Mutator = MutateFunc(func(ctx context.Context, m Mutation) (Value, error) {
mutation, ok := m.(*PetMutation)
if !ok {
return nil, fmt.Errorf("unexpected mutation type %T", m)
}
pd.mutation = mutation
affected, err = pd.sqlExec(ctx)
mutation.done = true
return affected, err
})
for i := len(pd.hooks) - 1; i >= 0; i-- {
mut = pd.hooks[i](mut)
}
if _, err := mut.Mutate(ctx, pd.mutation); err != nil {
return 0, err
}
}
return affected, err
}
// ExecX is like Exec, but panics if an error occurs.
func (pd *PetDelete) ExecX(ctx context.Context) int {
n, err := pd.Exec(ctx)
if err != nil {
panic(err)
}
return n
}
func (pd *PetDelete) sqlExec(ctx context.Context) (int, error) {
_spec := &sqlgraph.DeleteSpec{
Node: &sqlgraph.NodeSpec{
Table: pet.Table,
ID: &sqlgraph.FieldSpec{
Type: field.TypeInt,
Column: pet.FieldID,
},
},
}
if ps := pd.mutation.predicates; len(ps) > 0 {
_spec.Predicate = func(selector *sql.Selector) {
for i := range ps {
ps[i](selector)
}
}
}
return sqlgraph.DeleteNodes(ctx, pd.driver, _spec)
}
// PetDeleteOne is the builder for deleting a single Pet entity.
type PetDeleteOne struct {
pd *PetDelete
}
// Exec executes the deletion query.
func (pdo *PetDeleteOne) Exec(ctx context.Context) error {
n, err := pdo.pd.Exec(ctx)
switch {
case err != nil:
return err
case n == 0:
return &NotFoundError{pet.Label}
default:
return nil
}
}
// ExecX is like Exec, but panics if an error occurs.
func (pdo *PetDeleteOne) ExecX(ctx context.Context) {
pdo.pd.ExecX(ctx)
}
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