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[英]How to use $or operation with array of sub-documents in mongo shell and mongoose?
[英]how use Schema methods in mongoose sub-documents after loading
我的猫鼬有以下计划
var Schema = mongoose.Schema;
var CellSchema = new Schema({
foo: Number,
});
CellSchema.methods.fooMethod= function(){
return 'hello';
};
var GameSchema = new Schema({
field: [CellSchema]
});
如果创建新文档,例如:
var cell = new CellModel({foo: 2})
var game = new GameModel();
game.field.push(cell);
game.field[0].fooMethod();
它正常工作。 但是,如果运行此代码:
GameModel.findOne({}, function(err, game) {
console.log(game);
game.field[0].fooMethod()
})
我收到TypeError:game.field [0] .fooMethod不是函数,控制台日志是
{
field:
[ { foo: 2,
_id: 5675d5474a78f1b40d96226d }
]
}
如何使用所有架构方法正确加载子文档?
您必须先在嵌入式架构上定义方法,然后再定义父架构。
另外,您必须引用CellSchema
而不是'Cell'
var CellSchema = new Schema({
foo: Number,
});
CellSchema.methods.fooMethod = function() {
return 'hello';
};
var GameSchema = new Schema({
field: [CellSchema]
});
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