Question

我正在编写一个vivarium软件，并尝试使用node.js和mongodb来实现，但是我遇到了猫鼬的一些问题。

|| route.js

var animalspecieSchema = new Schema({
 name: {type: String, required: true},
 }, {collection: 'animal-specie'});

var animalspecie = mongoose.model('animalspecie', animalspecieSchema);

var cageSchema= new Schema({
 name: {
 type: String, required: true
},
 animalspecie: {
 type: Schema.Types.ObjectId,
 ref: 'animalspecie'
}
}, {collection: 'cage'});

var cage= mongoose.model('cage', cageSchema);

router.get('/cage', 

function(req,res,next){

cage.find().populate('animalspecie').then((cages) => {
res.render('cage', {cages: cages})
})

|| cage.hbs



<h2 class="mt-4">Cages</h2>
{{#each cages}}
<div class="col-md-12 mt-4">
 <div class="card">
    <div class="card-body">
        <b>Jaula:</b> {{name}} <b>Animal specie:</b> {{animalspecie.name}} <a href="/editcage/{{_id}}"><button class="btn btn-warning mt-3">Edit</button></a> <a href="/removecage/{{_id}}"><button class="btn btn-danger mt-3">Remove</button></a>
    </div>
  </div>
</div>




 {{/each}}

<h2 class="mt-4">Cages</h2> {{#each cages}} <div class="col-md-12 mt-4"> <div class="card"> <div class="card-body"> <b>Jaula:</b> {{name}} <b>Animal specie:</b> {{animalspecie.name}} <a href="/editcage/{{_id}}"><button class="btn btn-warning mt-3">Edit</button></a> <a href="/removecage/{{_id}}"><button class="btn btn-danger mt-3">Remove</button></a> </div> </div> </div> {{/each}}

我只能获得笼子ID，但是笼子.hbs中没有动物种类。知道我该如何解决吗？谢谢！

.populate（）不带数据

0 个答案: