Sequelize.js Sequelize-我可以基于另一个模型关系关联一个模型吗?
早上好,我一直在尝试解决一个问题,但我没有足够的sequelize经验来知道是否有解决方案,所以我的问题是: 我有一个名为Order的模型,另一个名为Service的模型,还有8个名为“orderAttributeA”、“orderAttributeB”、“orderAttributeC”的模型 我的订单模型如下所示:Sequelize.js Sequelize-我可以基于另一个模型关系关联一个模型吗?,sequelize.js,forestadmin,Sequelize.js,Forestadmin,早上好,我一直在尝试解决一个问题,但我没有足够的sequelize经验来知道是否有解决方案,所以我的问题是: 我有一个名为Order的模型,另一个名为Service的模型,还有8个名为“orderAttributeA”、“orderAttributeB”、“orderAttributeC”的模型 我的订单模型如下所示: module.exports = (sequelize, DataTypes) => { const {Sequelize} = sequelize; // Learn m
module.exports = (sequelize, DataTypes) => {
const {Sequelize} = sequelize;
// Learn more here: https://docs.forestadmin.com/documentation/v/v6/reference-guide/models/enrich-your-models#declaring-a-new-field-in-a-model
const Order = sequelize.define('order', {
id: {
type: DataTypes.BIGINT,
autoIncrement: true,
primaryKey: true
},
userId: {
type: DataTypes.BIGINT,
allowNull: false,
},
companyId: {
type: DataTypes.BIGINT,
allowNull: false,
},
serviceId: {
type: DataTypes.BIGINT,
allowNull: false,
},
providerId: {
type: DataTypes.BIGINT,
allowNull: true,
defaultValue: null
},
status: {
type: DataTypes.INTEGER,
allowNull: false,
},
userComment: {
type: DataTypes.STRING,
allowNull: true,
defaultValue: null
},
amount: {
type: DataTypes.INTEGER,
defaultValue: 0,
allowNull: false,
},
deliveryDate: {
type: DataTypes.DATE,
allowNull: true,
defaultValue: null
},
createdAt: {
type: DataTypes.DATE,
defaultValue: Sequelize.literal('CURRENT_TIMESTAMP'),
},
updatedAt: {
type: DataTypes.DATE,
defaultValue: Sequelize.literal('CURRENT_TIMESTAMP'),
onUpdate: Sequelize.literal('CURRENT_TIMESTAMP')
},
}, {
tableName: 'Order',
});
Order.associate = async (models) => {
Order.belongsTo(models.user, {
foreignKey: 'userId',
});
Order.hasMany(models.orderDetail, {
foreignKey: 'orderId',
as: 'details',
});
Order.belongsTo(models.service, {
foreignKey: 'serviceId',
as: 'service',
});
Order.hasOne(models.orderPayment, {
foreignKey: 'orderId',
as: 'payment',
});
};
return Order;
})
我的服务模式:
module.exports = (sequelize, DataTypes) => {
const { Sequelize } = sequelize;
const Service = sequelize.define('service', {
name: {
type: DataTypes.STRING,
allowNull: false,
},
className: {
type: DataTypes.STRING,
allowNull: false,
},
categoryId: {
type: DataTypes.INTEGER,
allowNull: false,
},
externalLink: {
type: DataTypes.STRING,
},
createdAt: {
type: DataTypes.DATE,
defaultValue: Sequelize.literal('CURRENT_TIMESTAMP'),
},
updatedAt: {
type: DataTypes.DATE,
defaultValue: Sequelize.literal('CURRENT_TIMESTAMP'),
onUpdate: Sequelize.literal('CURRENT_TIMESTAMP')
},
}, {
tableName: 'Service',
});
Service.associate = (models) => {
};
return Service;
};
我的OrderAttributexx型号之一:
module.exports = (sequelize, DataTypes) => {
const { Sequelize } = sequelize;
const OrderAttributeB = sequelize.define('orderAttributeB', {
orderId: {
type: DataTypes.BIGINT,
primaryKey: true,
allowNull: false,
},
firstName: {
type: DataTypes.STRING,
allowNull: false,
},
lastName: {
type: DataTypes.STRING,
allowNull: false,
},
createdAt: {
type: DataTypes.DATE,
defaultValue: Sequelize.literal('CURRENT_TIMESTAMP'),
},
updatedAt: {
type: DataTypes.DATE,
defaultValue: Sequelize.literal('CURRENT_TIMESTAMP'),
onUpdate: Sequelize.literal('CURRENT_TIMESTAMP')
},
}, {
tableName: 'OrderAttributeB',
});
OrderAttributeB.associate = (models) => {
};
return OrderAttributeB;
};
我试图做的是选择相应的模型(orderAttributeXXX)基于我的服务的类名,所以关系如下:Order.serviceId->service,其中id=Order.serviceId->get the service className列->根据service className列查找模型,但是模型“service”和任何“orderAttributeXXX”模型之间没有链接。有可能在sequelize中实现类似的功能吗
// i would like to select the corresponding model (orderAttribute) based on the column className of my model service
Order.belongsTo(models.service.className, {
foreignKey: 'orderId',
as: 'attribute',
});
提前感谢这不是forestadmin现成支持的内容(动态参考字段)
针对这类问题的黑客解决方案是A+
例如,您可以这样定义一个智能集合OrderAttributes
collection('OrderAttributes', {
fields: [{
field: 'id', // This is mandatory
type: 'String'
}, {
field: 'orderAttributeA',
type: 'String',
}, {
field: 'orderAttributeA',
type: 'orderAttributeB',
}, ...]
});
然后覆盖
/forest/order属性
,/forest/order
等的路由,以处理订单
&订单属性
之间的路由是否相关?是的,很抱歉,如果这是一个重复的主题位。我不知道我们在森林社区网站上已经有帖子了。我明白了!谢谢,那我就那样做