Sequelize - 將新行添加到表中並關聯表

Question

我使用Sequelize ORM和MySql，並且當前遇到了在表和輔助表中創建新條目的問題。 我的模型： 文章

module.exports = function (sequelize, DataTypes) { 
    var Articles = sequelize.define('articles', { 
     id: { 
      type: DataTypes.INTEGER, 
      primaryKey: true, 
      autoIncrement: true 
     }, 
     author: { 
      type: DataTypes.STRING 
     }, 
     title: { 
      type: DataTypes.STRING 
     }, 
     intro: { 
      type: DataTypes.TEXT 
     }, 
     article: { 
      type: DataTypes.TEXT 
     }, 
     cd: { 
      type: DataTypes.DATE 
     } 
    }, { 
     createdAt: 'cd', 
     updatedAt: false, 
     freezeTableName: true, 
     classMethods: { 
      associate: function (models) { 
       this.belongsToMany(models.comments, { 
        through: 'commented_articles' 
       }); 
      } 
     } 
    }); 
    return Articles; 
}; 

Comments: 

module.exports = function (sequelize, DataTypes) { 
    var Comments = sequelize.define('comments', { 
     id: { 
      type: DataTypes.INTEGER, 
      primaryKey: true, 
      autoIncrement: true 
     }, 
     id_parent: { 
      type: DataTypes.INTEGER, 
      defaultValue: null 
     }, 
     user_id: { 
      type: DataTypes.INTEGER, 
      defaultValue: null 
     }, 
     nick: { 
      type: DataTypes.STRING 
     }, 
     title: { 
      type: DataTypes.STRING 
     }, 
     comment: { 
      type: DataTypes.TEXT 
     }, 
     plus: { 
      type: DataTypes.INTEGER, 
      defaultValue: null, 
      validate: { 
       isInt: { 
        msg: "Must be an integer number." 
       } 
      } 
     }, 
     minus: { 
      type: DataTypes.INTEGER, 
      defaultValue: null, 
      validate: { 
       isInt: { 
        msg: "Must be an integer number." 
       } 
      } 
     } 
    }, { 
     createdAt: 'cd', 
     updatedAt: false, 
     freezeTableName: true, 
     classMethods: { 
      associate: function (models) { 
       this.belongsToMany(models.articles, { 
        through: 'commented_articles' 
       }); 
      } 
     } 
    }); 
    return Comments; 
}; 

I want to add new comment to article, so probably my routing would look like 

module.exports = function (app) { 
    var articles = require('./../apiMethods/articlesMethods'); 
    app.post('/articles/:id/comments', articles.getSingleArticle); 
}; 

I was trying to use addComment (http://docs.sequelizejs.com/en/latest/docs/associations/) 

var models = require('../models'), 
    MyModel = require('../supportMethods/modelMethods'), 
    supportModel = new MyModel(models.articles); 

module.exports = (function() { 
    return { 
     setArticle: function (req, res) { 
      models.articles.addComments(models.comments, { 
       user_id: req.body.user_id, 
       nick: req.body.nick, 
       title: req.body.title, 
       comment: req.body.comment 
      }) 
     } 
    }; 
})(); 
The "commented_articles" is obviously automaticaly generated by squelize and contains article_id, comment_id and cd (row update timestamp). 

我想才達到是將註釋添加到適當的文章，並在同一時間將在「commented_articles」新單元。 「評論」表包含對文章和圖片的評論（還有一個「commented_images」表）。 我試圖使用addComments方法，但它不起作用。我究竟做錯了什麼？ 謝謝

Answer 1

我解決了我的問題。骯髒的版本是：

addNewCommentToArticle: function (req, res) { 
    var id_parent = req.body.id_parent, 
     user_id = req.body.user_id, 
     nick = req.body.nick, 
     title = req.body.title, 
     comment = req.body.comment; 
    models.articles.findByPrimary(req.params.id) 
     .then(function (createdArticle) { 
      models.comments.create({ 
       id_parent: id_parent, 
       user_id: user_id, 
       nick: nick.trim(), 
       title: title.trim(), 
       comment: comment.trim() 
      }).then(function (newComment) { 
       createdArticle.addComments(newComment) 
        .then(function() { 
         res.json(newComment); 
        }) 
        .catch(function (e) { 
         res.json(e); 
        }); 
      }) 
    }); 
} 

希望有人覺得它有用。