How to use

destroy

function

in

Model

function deleteProject(id) {
 return Projects.destroy({
  where: { id: id }
 })
}

const destroy = (req, res) => {
 const id = parseInt(req.params.id, 10);
 if (Number.isNaN(id)) return res.status(400).end();

 models.User.destroy({
  where: {id}
 }).then(() => {
  res.status(204).end();
 });
}

models.User.destroy({
  where: {
   id: id
  }
 }).then(count => {
  if (!count) {
   return res.status(404).send({error: 'No user'});
  }
  res.status(204).send();
 });

models.Attack.destroy({where: {id: attackId}}).then((count)=>{
   models.Attack.sync().then(()=>{
    resolve(count)
   })
  })
  .catch((err)=>{
   console.log(err)
   reject(err)
  })

/**
 * 删除
 */
router.get("/:id/del", function(req, res, next) {
  Role.destroy({
    where: {
      id: req.params.id
    }
  }).then(function(result) {
    res.json({
      status: 1,
      data: result
    });
  }).catch(next);
});

TxtOnly.findByPk(elementId).then(data => {
        if(!data) {
         return next(new Error('Data not found.'));
        }
        return TxtOnly.destroy({where:{id: elementId}});
       })
        .then(() => {
         console.log('DESTROYED DATA');
         res.status(200).json({message: 'Success'});
        })  
        .catch(err => {
         res.status(500).json({message: 'Deleting data failed.'});
        })

pokemon.delete('/:id', async (req, res) => {
  const id = req.params.id;

  let nExcluidos = await Pokemon.destroy(
    {
      where: { id: id }
    }
  );

  res.json(
    {
      nExcluidos: nExcluidos
    }
  );
});

static destroy(userId) {
  return db.User.destroy({ where: { id: userId } })
   .then(rows => Promise.resolve(rows === 1))
 }

/**
 * Remove a topic
 */
export function remove(req, res) {
 Topic.destroy({ where: { id: req.params.id } }).then(() => {
  res.status(200).send('Removed Successfully');
 }).catch((err) => {
  console.log(err);
  res.status(500).send('We failed to delete for some reason');
 });
}

ImgTxt.findByPk(elementId).then(data => {
       if(!data) {
        return next(new Error('Data not found.'));
       }
       fileHelper.deleteFile(data.imageUrl);
       return ImgTxt.destroy({where:{id: elementId}});
      })
       .then(() => {
        console.log('DESTROYED DATA');
        res.status(200).json({message: 'Success'});
       })  
       .catch(err => {
        res.status(500).json({message: 'Deleting data failed.'});
       })

// end of the function cartCheckout

function delFromCart(cartItemID) // definition of the function delFromCart
{
  return CartProduct.destroy(
    {
      where:
        {
          id: cartItemID
        }
    });
}

ImgOnly.findByPk(elementId).then(data => {
      if(!data) {
       return next(new Error('Data not found.'));
      }
      fileHelper.deleteFile(data.imageUrl);
      return ImgOnly.destroy({where:{id: elementId}});
     })
      .then(() => {
       console.log('DESTROYED DATA');
       res.status(200).json({message: 'Success'});
      })  
      .catch(err => {
       res.status(500).json({message: 'Deleting data failed.'});
      })

/**
 * 删除一个地址
 */
router.get("/:id/del", function(req, res, next) {
  Address.destroy({
    where: {
      id: req.params.id
    }
  }).then(function(result) {
    res.json({
      status: 1,
      data: result
    });
  }).catch(next);
});

/**
 * 删除
 */
router.get("/:id/del", function(req, res, next) {
  LoginInfo.destroy({
    where: {
      id: req.params.id
    }
  }).then(function(result) {
    res.json({
      status: 1,
      data: result
    });
  }).catch(next);
});

// end of the function totalamount

function cartCheckout(data) { CartProduct.destroy({ where: {}}); }