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