關聯關聯插入數據

Question

vegetable.js

...
var Vegetable = sequelize.define('Vegetable', {
 recipeId: { allowNull: false, ... },
 name: { ... },
});

Vegetable.association = models => {
 Vegetable.belongsTo(models.Recipe);
};
...

recipe.js

...
var Recipe = sequelize.define('Recipe', {
 id: { ... },
 name: { ... },
 ...
});

Recipe.association = models => {
 Recipe.hasMany(models.Vegetable, {as: 'vegetables'});
};

Recipe.insert = recipe => {
 const { Vegetable } = require('./vegetable');
 return Recipe.create({
  name: 'asdf',
  vegetables: [{name: 'asdf'}],
  ...
 }, {
  include: [{
   model: Vegetable,
   as: vegetables',
  }],
 });
};
...

結果

SequelizeValidationError：notNull違規：Vegetable.recipeId不能為null

為什么Vegetable.recipeId不填充Recipe.id？

是否有最佳做法來插入具有關聯的數據？

Answer 1

在hasMany選項中未定義外鍵時，sequelize將自動生成它。 模型列和數據庫列的定義不匹配可能會導致這樣的錯誤。 您可能也可以定義外鍵。

Recipe.association = models => {
 Recipe.hasMany(models.Vegetable, {foreignKey: 'recipeId', as: 'vegetables'});
};