// Code generated by ent, DO NOT EDIT.

package ent

import (
	"context"

	"entgo.io/ent/dialect/sql"
	"entgo.io/ent/dialect/sql/sqlgraph"
	"entgo.io/ent/schema/field"
	"gitee.com/yuLingNet/simple-iot-data-rpc/ent/devicedurationelephant"
	"gitee.com/yuLingNet/simple-iot-data-rpc/ent/predicate"
)

// DeviceDurationElephantDelete is the builder for deleting a DeviceDurationElephant entity.
type DeviceDurationElephantDelete struct {
	config
	hooks    []Hook
	mutation *DeviceDurationElephantMutation
}

// Where appends a list predicates to the DeviceDurationElephantDelete builder.
func (dded *DeviceDurationElephantDelete) Where(ps ...predicate.DeviceDurationElephant) *DeviceDurationElephantDelete {
	dded.mutation.Where(ps...)
	return dded
}

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

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

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

// DeviceDurationElephantDeleteOne is the builder for deleting a single DeviceDurationElephant entity.
type DeviceDurationElephantDeleteOne struct {
	dded *DeviceDurationElephantDelete
}

// Where appends a list predicates to the DeviceDurationElephantDelete builder.
func (ddedo *DeviceDurationElephantDeleteOne) Where(ps ...predicate.DeviceDurationElephant) *DeviceDurationElephantDeleteOne {
	ddedo.dded.mutation.Where(ps...)
	return ddedo
}

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

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