我有一个图像模型和一个位置模型。图像模型包含位置的外键。要获取我使用的结果:
fetch({withRelated: ['location']};
我收到以下结果:
{
"id": 24,
"created_by": 1,
"location_id": 202,
"location": {}
}
但我想要这样的东西:
{
"id": 24,
"created_by": 1,
"location": {....}
}
我的图像模型:
objectProperties = {
tableName: 'images',
location: function () {
return this.hasOne(location, 'id');
}
};
classProperties = {};
imageModel = bookshelf.Model.extend(objectProperties, classProperties);
和我的位置模型:
objectProperties = {
tableName: 'locations',
images: function () {
return this.belongsToMany(image, 'location_id');
}
};
classProperties = {};
locationModel = bookshelf.Model.extend(objectProperties, classProperties);
为什么我收到一个空的位置对象?
最佳答案
看下面的例子
person: id_person, name, id_country withRelated country: id_country, name, id_province and withRelated province: id_province, name
确定生成模型人、国家和省份
人.js
'use strict'
const Bookshelf = require('../commons/bookshelf');
const Country = require('./country');
let Person = Bookshelf.Model.extend({
tableName: 'person',
idAttribute: 'id_person',
country: function() {
return this.belongsTo(Country, 'id_country');
}
});
module.exports = Bookshelf.model('Person', Person);
国家.js
'use strict'
const Bookshelf = require('../commons/bookshelf');
const Province = require('./province');
let Country = Bookshelf.Model.extend({
tableName: 'country',
idAttribute: 'id_country',
province: function() {
return this.belongsTo(Province, 'id_province');
}
});
module.exports = Bookshelf.model('Country', Country);
省.js
'use strict'
const Bookshelf = require('../commons/bookshelf');
let Province = Bookshelf.Model.extend({
tableName: 'province',
idAttribute: 'id_province'
});
module.exports = Bookshelf.model('Province', Province);
使用集合 person.js
'use strict'
const Bookshelf = require('../commons/bookshelf');
const Person = require('../models/person');
const Persons = Bookshelf.Collection.extend({
model: Person
});
module.exports = Persons;
带有 Controller person.js
'use strict';
const Persons = require('../collections/persons');
const Person = require('../models/person');
function getPersons(req, res, next) {
Motivos.query({})
.fetch({
withRelated: [
'country',
'country.province'
] })
.then(function(data) {
return res.status(200).json({
error: false,
data: data
});
});
}
json是
{
"error":false,
"data":[{
"id_person": 1,
"name": "leonardo",
"id_country": 3,
"country":{
"id_country": 3,
"name":"venezuela",
"id_province": 2,
"province":{
"id_province": 2,
"name":"lara"
}
}
},{...}]
}
关于javascript - Bookshelf js fetch withRelated选项返回空关系对象,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/30686977/