Как объединить вложенный документ в один массив? - PullRequest
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Как объединить вложенный документ в один массив?

0 голосов
/ 21 июня 2019

У меня есть отдельная коллекция, и я успешно сгруппировал документ, но есть одна проблема.Модуль пакета появляется 2 раза с другим подмодулем пакета, я хочу, чтобы модуль пакета просто появлялся 1 раз, а подмодул пакета находится в массиве объекта вместо 1 объекта.

Вот документ и посмотрите на package_submodules,есть один и тот же package_module_id: 5d074931074c830be64d665d, я хочу, чтобы вместо одного элемента package_submodule в массиве объект был разделен следующим образом: 

[
    {
        "_id": "5d074704e155d703b69086aa",
        "package_name": "Large",
        "package_desc": "Facere rem nostrum ipsam eligendi voluptatem reprehenderit sint quia ea. Quisquam amet illum omnis est amet in sit. Dicta nesciunt sed voluptas sed. Facilis aut dolores quasi impedit eaque velit. Blanditiis et corporis vitae ea id voluptatem consectetur quia unde. Dolorem sed aut.\n \rCupiditate assumenda animi dignissimos vero quibusdam esse perferendis perferendis laboriosam. Architecto et sit et deserunt. Numquam aliquid sed modi porro ea fugit vitae dolore expedita.\n \rOdio aut repellendus nihil. Est rerum qui dolorum temporibus eius recusandae odio aut. Placeat perspiciatis qui eos ut aliquid voluptas officia. Consectetur vitae officia illo facilis iusto et rerum. Quia et ipsa.",
        "package_price": 15000000,
        "package_modules": [
            {
                "_id": "5d074931074c830be64d665d",
                "subscription_id": "5d074704e155d703b69086aa",
                "billing_model_id": "5d0747be27cb8d06b6480aa1",
                "module_id": "5d074775c8b6cf0541b02993",
                "created_at": "2019-06-17T08:02:57.388Z",
                "__v": 0,
                "module": {
                    "_id": "5d074775c8b6cf0541b02993",
                    "module_name": "Call",
                    "status": "Active",
                    "created_at": "2019-06-17T07:55:33.916Z",
                    "__v": 0
                },
                "billing_module": {
                    "_id": "5d0747be27cb8d06b6480aa1",
                    "unit_count": "Menit",
                    "counter": 8000,
                    "created_at": "2019-06-17T07:56:46.511Z",
                    "__v": 0
                },
                "package_submodules": {
                    "_id": "5d0baa68955693648d4e6892",
                    "package_module_id": "5d074931074c830be64d665d",
                    "sub_module_id": "5d074a1925e5000eff15272b",
                    "created_at": "2019-06-17T08:13:59.419Z"
                }
            },
            {
                "_id": "5d074931074c830be64d665d",
                "subscription_id": "5d074704e155d703b69086aa",
                "billing_model_id": "5d0747be27cb8d06b6480aa1",
                "module_id": "5d074775c8b6cf0541b02993",
                "created_at": "2019-06-17T08:02:57.388Z",
                "__v": 0,
                "module": {
                    "_id": "5d074775c8b6cf0541b02993",
                    "module_name": "Call",
                    "status": "Active",
                    "created_at": "2019-06-17T07:55:33.916Z",
                    "__v": 0
                },
                "billing_module": {
                    "_id": "5d0747be27cb8d06b6480aa1",
                    "unit_count": "Menit",
                    "counter": 8000,
                    "created_at": "2019-06-17T07:56:46.511Z",
                    "__v": 0
                },
                "package_submodules": {
                    "_id": "5d0baa78955693648d4e6893",
                    "package_module_id": "5d074931074c830be64d665d",
                    "sub_module_id": "5d074a27fa83a80f608a153b",
                    "created_at": "2019-06-17T08:13:59.419Z"
                }
            },
            .....
        ]
    }
......
]

Вот некоторый код, который я пробовал, и некоторая помощь: 

Package_subscription
            .aggregate([
                {
                    $sort: {
                        package_name: 1
                    }
                },
                {
                    $lookup: {
                            from: "o_package_modules",
                            localField: "_id",
                            foreignField: "subscription_id",
                            as: "package_modules"
                    }
                },
                {
                    $unwind: {
                        path: "$package_modules",
                        preserveNullAndEmptyArrays: true                        
                    }
                },
                {
                    $lookup: {
                        from: "o_modules",
                        localField: "package_modules.module_id",
                        foreignField: "_id",
                        as: 'package_modules.module'
                    }
                },
                {
                    $unwind: {
                        path: "$package_modules.module",
                        preserveNullAndEmptyArrays: true                        
                    }
                },
                {
                    $lookup: {
                        from: "o_billing_models",
                        localField: "package_modules.billing_model_id",
                        foreignField: "_id",
                        as: 'package_modules.billing_module'
                    }
                },
                {
                    $unwind: {
                        path: "$package_modules.billing_module",
                        preserveNullAndEmptyArrays: true                        
                    }
                },
                {
                    $lookup: {
                        from: "o_package_submodules",
                        localField: "package_modules._id",
                        foreignField: "package_module_id",
                        as: 'package_modules.package_submodules'
                    }
                },
                {
                    $unwind: {
                        path: "$package_modules.package_submodules",
                        preserveNullAndEmptyArrays: true                        
                    }
                }, 
                {
                    $lookup: {
                        from: "o_submodules",
                        localField: "package_modules.package_submodules.submodule_id",
                        foreignField: "_id",
                        as: 'package_modules.package_submodules.submodule'
                    }
                },
                {
                    $unwind: {
                        path: "$package_modules.package_submodules.submodule",
                        preserveNullAndEmptyArrays: true                        
                    }
                }, 
                {
                    $group: {
                        _id: "$_id",
                        package_name: {$first: "$package_name"},
                        package_desc: {$first: "$package_desc"},
                        package_price: {$first: "$package_price"},
                        package_modules : {$push: "$package_modules"}                        
                    }
                }
            ])            
            .exec()                        
            .then((pricing) => {                
                res.json(pricing)                
            })
            .catch((err) => {
                res.send(err)
            })

Если на этапе $ group я добавляю новое поле следующим образом: 

$group: {
            _id: "$_id",
            package_name: {$first: "$package_name"},
            package_desc: {$first: "$package_desc"},
            package_price: {$first: "$package_price"},
            package_modules : {$push: "$package_modules"} ,
            "package_modules.package_submodules": {$push: "$package_modules.package_submodules"}
            }
        }

Тогда ошибка "errmsg": "Имя поля 'package_modules.package_submodules' не может содержать '.'",

Как объединить вложенный документ в один массив объектов, как я и ожидал: 

[
    {
        "_id": "5d074704e155d703b69086aa",
        "package_name": "Large",
        "package_desc": "Facere rem nostrum ipsam eligendi voluptatem reprehenderit sint quia ea. Quisquam amet illum omnis est amet in sit. Dicta nesciunt sed voluptas sed. Facilis aut dolores quasi impedit eaque velit. Blanditiis et corporis vitae ea id voluptatem consectetur quia unde. Dolorem sed aut.\n \rCupiditate assumenda animi dignissimos vero quibusdam esse perferendis perferendis laboriosam. Architecto et sit et deserunt. Numquam aliquid sed modi porro ea fugit vitae dolore expedita.\n \rOdio aut repellendus nihil. Est rerum qui dolorum temporibus eius recusandae odio aut. Placeat perspiciatis qui eos ut aliquid voluptas officia. Consectetur vitae officia illo facilis iusto et rerum. Quia et ipsa.",
        "package_price": 15000000,
        "package_modules": [
            {
                "_id": "5d074931074c830be64d665d",
                "subscription_id": "5d074704e155d703b69086aa",
                "billing_model_id": "5d0747be27cb8d06b6480aa1",
                "module_id": "5d074775c8b6cf0541b02993",
                "created_at": "2019-06-17T08:02:57.388Z",
                "__v": 0,
                "module": {
                    "_id": "5d074775c8b6cf0541b02993",
                    "module_name": "Call",
                    "status": "Active",
                    "created_at": "2019-06-17T07:55:33.916Z",
                    "__v": 0
                },
                "billing_module": {
                    "_id": "5d0747be27cb8d06b6480aa1",
                    "unit_count": "Menit",
                    "counter": 8000,
                    "created_at": "2019-06-17T07:56:46.511Z",
                    "__v": 0
                },
                "package_submodules": [
                    {
                        "_id": "5d0baa68955693648d4e6892",
                        "package_module_id": "5d074931074c830be64d665d",
                        "sub_module_id": "5d074a1925e5000eff15272b",
                        "created_at": "2019-06-17T08:13:59.419Z"
                    },
                    {
                        "_id": "5d0baa78955693648d4e6893",
                        "package_module_id": "5d074931074c830be64d665d",
                        "sub_module_id": "5d074a27fa83a80f608a153b",
                        "created_at": "2019-06-17T08:13:59.419Z"
                    },
            },            
            .....
        ]
    }
......
]
...