Как сделать запрос массива объектов JSON в MySQL и Laravel - PullRequest
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Как сделать запрос массива объектов JSON в MySQL и Laravel

0 голосов
/ 17 ноября 2018

У меня есть таблица базы данных со следующими столбцами: 

CREATE TABLE sales
(
    id int PRIMARY KEY NOT NULL AUTO_INCREMENT,
    invoice_id int unsigned,
    tickets json,
    created_at timestamp DEFAULT CURRENT_TIMESTAMP NOT NULL,
    updated_at timestamp
);

Теперь у меня есть следующие данные в таблице: 

INSERT INTO sales (id, invoice_id, tickets, created_at, updated_at) VALUES (3, 1, '[{"id": 3, "code": "FA82-540E", "date": "2018-11-17", "seat": "4", "time": "16:15:00", "class": "Regular", "price": "156.55", "created_at": "2018-11-15 17:37:39", "pickup_point": "16:15:00"}, {"id": 4, "code": "C3B6-B3E6", "date": "2018-11-17", "seat": "4", "time": "16:15:00", "class": "Regular", "price": "156.55", "created_at": "2018-11-15 18:27:21", "pickup_point": "16:15:00"}, {"id": 5, "code": "3949-6418", "date": "2018-11-17", "seat": "4", "time": "16:15:00", "class": "Regular", "price": "156.55", "created_at": "2018-11-15 18:33:35", "pickup_point": "16:15:00"}, {"id": 6, "code": "FC67-9EC9", "date": "2018-11-17", "seat": "4", "time": "16:15:00", "class": "Regular", "price": "156.55", "created_at": "2018-11-15 18:36:52", "pickup_point": "16:15:00"}, {"id": 7, "code": "CEAA-1AF4", "date": "2018-11-17", "seat": "20", "time": "16:15:00", "class": "Regular", "price": "156.55", "created_at": "2018-11-15 19:21:40", "pickup_point": "16:15:00"}, {"id": 8, "code": "B3DB-CB40", "date": "2018-11-17", "seat": "12", "time": "16:15:00", "class": "Regular", "price": "156.55", "created_at": "2018-11-15 19:21:40", "pickup_point": "16:15:00"}, {"id": 9, "code": "1EC8-E336", "date": "2018-11-17", "seat": "20", "time": "16:15:00", "class": "Regular", "price": "156.55", "created_at": "2018-11-15 19:23:16", "pickup_point": "16:15:00"}, {"id": 10, "code": "DD6C-4177", "date": "2018-11-17", "seat": "12", "time": "16:15:00", "class": "Regular", "price": "156.55", "created_at": "2018-11-15 19:23:16", "pickup_point": "16:15:00"}, {"id": 11, "code": "96E7-99E6", "date": "2018-11-17", "seat": "17", "time": "16:15:00", "class": "Regular", "price": "156.55", "created_at": "2018-11-15 19:23:16", "pickup_point": "16:15:00"}, {"id": 13, "code": "BBFF-081F", "date": "2018-11-17", "seat": "6", "time": "16:15:00", "class": "Regular", "price": "156.55", "created_at": "2018-11-15 19:51:10", "pickup_point": "16:15:00"}, {"id": 15, "code": "C45D-4EE4", "date": "2018-11-17", "seat": "1", "time": "16:15:00", "class": "Regular", "price": "156.55", "created_at": "2018-11-16 14:45:06", "pickup_point": "16:15:00"}, {"id": 16, "code": "FF50-E7A6", "date": "2018-11-17", "seat": "4", "time": "01:15:00", "class": "VIP", "price": "170.00", "created_at": "2018-11-16 15:14:48", "pickup_point": "01:15:00"}, {"id": 18, "code": "BE2C-8A6B", "date": "2018-11-17", "seat": "1", "time": "01:15:00", "class": "VIP", "price": "170.00", "created_at": "2018-11-16 15:32:29", "pickup_point": "01:15:00"}, {"id": 19, "code": "0F9A-E729", "date": "2018-11-17", "seat": "2", "time": "01:15:00", "class": "VIP", "price": "170.00", "created_at": "2018-11-16 15:41:31", "pickup_point": "01:15:00"}, {"id": 20, "code": "8F3B-3FEE", "date": "2018-11-17", "seat": "1", "time": "16:15:00", "class": "Regular", "price": "156.55", "created_at": "2018-11-16 16:44:07", "pickup_point": "988 Ritchie Cove\\nSouth Draketown, SD 48053"}, {"id": 2820, "code": "E0E4-CA78", "date": "2019-01-13", "seat": null, "time": "02:36:45", "class": "Regular", "price": "212.31", "venue": "Bartoletti Road", "created_at": "2018-11-16 18:18:59"}, {"id": 2821, "code": "1E4B-6BCE", "date": "2019-01-13", "seat": null, "time": "02:36:45", "class": "Regular", "price": "212.31", "venue": "Bartoletti Road", "created_at": "2018-11-16 18:31:05"}, {"id": 2822, "code": "1CF8-6AB1", "date": "2018-11-17", "seat": "2", "time": "16:15:00", "class": "Regular", "price": "156.55", "created_at": "2018-11-16 18:35:56", "pickup_point": "988 Ritchie Cove\\nSouth Draketown, SD 48053"}, {"id": 2823, "code": "FE6D-D383", "date": "2019-01-13", "seat": null, "time": "02:36:45", "class": "Regular", "price": "212.31", "venue": "Bartoletti Road", "created_at": "2018-11-16 19:51:57"}, {"id": 2824, "code": "ECAB-223E", "date": "2019-01-13", "seat": null, "time": "02:36:45", "class": "Regular", "price": "212.31", "venue": "Bartoletti Road", "created_at": "2018-11-16 19:51:57"}, {"id": 2825, "code": "5690-BB4D", "date": "2019-01-13", "seat": null, "time": "02:36:45", "class": "VIP", "price": "134.81", "venue": "Bartoletti Road", "created_at": "2018-11-16 19:51:57"}, {"id": 2826, "code": "609E-C02F", "date": "2019-01-13", "seat": null, "time": "02:36:45", "class": "Regular", "price": "212.31", "venue": "Bartoletti Road", "created_at": "2018-11-16 19:54:33"}, {"id": 2827, "code": "F2F8-0184", "date": "2019-01-13", "seat": null, "time": "02:36:45", "class": "Regular", "price": "212.31", "venue": "Bartoletti Road", "created_at": "2018-11-16 19:54:33"}, {"id": 2828, "code": "7502-326A", "date": "2019-01-13", "seat": null, "time": "02:36:45", "class": "VIP", "price": "134.81", "venue": "Bartoletti Road", "created_at": "2018-11-16 19:54:33"}, {"id": 2829, "code": "E6FB-B8FB", "date": "2019-01-13", "seat": null, "time": "02:36:45", "class": "Regular", "price": "212.31", "venue": "Bartoletti Road", "created_at": "2018-11-16 21:34:46"}, {"id": 2830, "code": "8B62-BE0E", "date": "2019-01-13", "seat": null, "time": "02:36:45", "class": "Regular", "price": "212.31", "venue": "Bartoletti Road", "created_at": "2018-11-16 21:34:46"}, {"id": 2831, "code": "4F10-64D9", "date": "2019-01-13", "seat": null, "time": "02:36:45", "class": "VIP", "price": "134.81", "venue": "Bartoletti Road", "created_at": "2018-11-16 21:34:46"}]', '2018-11-15 17:37:39', '2018-11-15 17:37:42');

Теперь, когда я пытаюсь выполнить следующий запрос: 

SELECT * FROM sales WHERE JSON_EXTRACT(`tickets` , '$.id') > 1

Строки не возвращаются. До этого я пытался сделать это с помощью laravel: 

$tickets = Sales::where("tickets->id", ">", 1)->get();

Это тоже не работает. К этому моменту я уже прочитал документы, но я очень озадачен тем, что делать.

Ответы [ 2 ]

0 голосов
/ 17 ноября 2018

Причина, по которой ваш запрос не работает, заключается в том, что он пытается извлечь атрибут id из корня объекта tickets, который не существует, поскольку в столбце хранится массив объектов.

Вместо этого вы сможете получить желаемый результат с помощью 

SELECT * FROM sales WHERE JSON_EXTRACT(`tickets` , '$[*].id') > 1

или 

Sales::whereRaw('JSON_EXTRACT(`tickets` , "$[*].id") > ?', [1])->get()

На данный момент я не думаю, что есть конкретный метод, который можно использовать для этого в Laravel.

При всем этом, я определенно рекомендую подход в ответе @Chris Linnenkohl и создам отдельную таблицу для ваших билетов, а затем вы можете просто использовать вместо этого отношение hasMany .

0 голосов
/ 17 ноября 2018

Почему бы вам не создать таблицу для билетов, тогда все, что вам нужно сделать, это простое соединение или использовать отношение hasMany () ?

Вместо билетов JSON у вас будет таблица билетов с sales_id, а затем вы можете просто использовать модель Eloquent от Laravel, например: 

public function tickets()
{
    return $this->hasMany(Tickets::class);
}

Это будет в модели продаж.

...