// Code generated by ent, DO NOT EDIT.

package ent

import (
	"context"
	"wechat-api/ent/predicate"
	"wechat-api/ent/usagestatistichour"

	"entgo.io/ent/dialect/sql"
	"entgo.io/ent/dialect/sql/sqlgraph"
	"entgo.io/ent/schema/field"
)

// UsageStatisticHourDelete is the builder for deleting a UsageStatisticHour entity.
type UsageStatisticHourDelete struct {
	config
	hooks    []Hook
	mutation *UsageStatisticHourMutation
}

// Where appends a list predicates to the UsageStatisticHourDelete builder.
func (ushd *UsageStatisticHourDelete) Where(ps ...predicate.UsageStatisticHour) *UsageStatisticHourDelete {
	ushd.mutation.Where(ps...)
	return ushd
}

// Exec executes the deletion query and returns how many vertices were deleted.
func (ushd *UsageStatisticHourDelete) Exec(ctx context.Context) (int, error) {
	return withHooks(ctx, ushd.sqlExec, ushd.mutation, ushd.hooks)
}

// ExecX is like Exec, but panics if an error occurs.
func (ushd *UsageStatisticHourDelete) ExecX(ctx context.Context) int {
	n, err := ushd.Exec(ctx)
	if err != nil {
		panic(err)
	}
	return n
}

func (ushd *UsageStatisticHourDelete) sqlExec(ctx context.Context) (int, error) {
	_spec := sqlgraph.NewDeleteSpec(usagestatistichour.Table, sqlgraph.NewFieldSpec(usagestatistichour.FieldID, field.TypeUint64))
	if ps := ushd.mutation.predicates; len(ps) > 0 {
		_spec.Predicate = func(selector *sql.Selector) {
			for i := range ps {
				ps[i](selector)
			}
		}
	}
	affected, err := sqlgraph.DeleteNodes(ctx, ushd.driver, _spec)
	if err != nil && sqlgraph.IsConstraintError(err) {
		err = &ConstraintError{msg: err.Error(), wrap: err}
	}
	ushd.mutation.done = true
	return affected, err
}

// UsageStatisticHourDeleteOne is the builder for deleting a single UsageStatisticHour entity.
type UsageStatisticHourDeleteOne struct {
	ushd *UsageStatisticHourDelete
}

// Where appends a list predicates to the UsageStatisticHourDelete builder.
func (ushdo *UsageStatisticHourDeleteOne) Where(ps ...predicate.UsageStatisticHour) *UsageStatisticHourDeleteOne {
	ushdo.ushd.mutation.Where(ps...)
	return ushdo
}

// Exec executes the deletion query.
func (ushdo *UsageStatisticHourDeleteOne) Exec(ctx context.Context) error {
	n, err := ushdo.ushd.Exec(ctx)
	switch {
	case err != nil:
		return err
	case n == 0:
		return &NotFoundError{usagestatistichour.Label}
	default:
		return nil
	}
}

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