我有一个Person表,成分表和一个PersonIngredient表。 person
和ingredient
通过person_ingredient
相互关联。当我查询person_ingredient
并尝试包含ingredient
时,我得到"ingredient is not associated to person_ingredient!"
为什么后遗症不允许我加入此行?
人员协会:
person.associate = function(models) {
// associations can be defined here
person.belongsToMany(models.ingredient, {through: {model: models.person_ingredient, unique: false}});
};
成分协会:
ingredient.associate = function(models) {
ingredient.belongsToMany(models.person, {through: {model: models.person_ingredient, unique: false}});
};
person_redredient定义:
'use strict';
module.exports = (sequelize, DataTypes) => {
const person_ingredient = sequelize.define('person_ingredient', {
id: {
type: DataTypes.BIGINT,
primaryKey: true,
autoIncrement: true,
allowNull: false
},
person_id: {
type: DataTypes.BIGINT,
allowNull: false,
references: {
model: 'person',
key: 'id'
},
onUpdate: 'cascade',
onDelete: 'cascade'
},
ingredient_id: {
type: DataTypes.BIGINT,
allowNull: false,
references: {
model: 'ingredient',
key: 'id'
},
onUpdate: 'cascade',
onDelete: 'cascade'
},
archived: {
type: DataTypes.BOOLEAN,
defaultValue: false
},
custom_ingredient: {
type: DataTypes.TEXT
}
}, {
underscored: true,
freezeTableName: true
});
person_ingredient.associate = function(models) {
// associations can be defined here
};
return person_ingredient;
};
查询:
let person = await db.Person.findOne({where:{email : email}});
let personIngredients = await db.PersonIngredient.findAll({
include: [
db.Ingredient
],
where:{person_id: person.id}
});
应该导致
SELECT person_ingredient.*, ingredient.*
FROM person_ingredient
JOIN ingredient ON ingredient.id = person_ingredient.ingredient_id
WHERE person_ingredient.person_id = 'id'