sequelize onDelete不会像切换时那样删除

Question

当用户两次单击“赞”按钮时，我无法删除赞。用户具有喜欢帖子的能力，再次单击它时，我需要相同的功能。我假设onDelete将使这成为可能。

我在喜欢的模型上配置了onDelete

module.exports = function(sequelize, DataTypes) {
  const Like = sequelize.define('Likes', {
    like:{
      type:DataTypes.BOOLEAN,
      allowNull:true
    },
  }, {});
    Like.associate = function(models) {
      // foreign key will attach a userId to the likes table
        Like.belongsTo(models.User, {
          onDelete: 'CASCADE',
          foreignKey: 'userId',
          targetKey: 'id' 

        })

        Like.belongsTo(models.Post, {
          onDelete: 'CASCADE',
          foreignKey: 'postId',
          targetKey: 'id' 


        })
    }
  return Like;
}

发布模型

module.exports = (sequelize, DataTypes) => {
  const Post = sequelize.define('Post', {
    title: DataTypes.STRING,
    post_content: DataTypes.STRING,
    username:  DataTypes.STRING
  }, {});
  Post.associate = function(models) {
    Post.belongsTo(models.User, {  foreignKey: 'userId',  targetKey: 'id' });
    // foreign key id will attach a postId to the likes table. 
    Post.hasMany(models.Likes, {  foreignKey: 'postId', targetKey: 'id',  onDelete: 'CASCADE' });
  };
  return Post;
};

routes / posts.js

router.post('/like', (req, res)=> {

    models.Likes.create({
        postId: req.body.postId,
        userId:  req.user.id,
        like:true
    }).then( () => {
        res.status(200).send({
            message: 'You have like this post',
        });
    }).catch( (err) => {
        res.status(401).send({
            message: "Something went wrong",
            err: err
        })
    })

})