ORM：Sequelize：多对多关系查询

Question

How do I query in many to many relationships? eg There are product, category, and product_category models. Below is an association by model:

// product
product.belongsToMany (models.category, {
      through: 'product_category',
      foreignKey: 'product_id'
    });

// category
category.belongsToMany (models.product, {
      through: 'product_category',
      foreignKey: 'category_id'
    });

// product_category
product_category.belongsTo (models.product, {
      foreignKey: 'product_id'
    });
    product_category.belongsTo (models.category, {
      foreignKey: 'category_id'
    });

I would appreciate if you can tell me which model the findAll () should have at the beginning when querying.

Answer 1

是的，如果你正在使用节点和续集它似乎是一个很好的契合，这是一个非常简单的提升，使GraphQL在你的解析器中运行和操纵你的续集模型...很高兴有graphiql游乐场用你的查询....容易豌豆