如何在 mysql 和 laravel 中查询 json 对象数组

Question

我有一个包含以下列的数据库 table：

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
);

现在我在 table 中有以下数据：

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');

现在，当我尝试运行以下查询时：

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

没有返回任何行。在此之前，我尝试使用 laravel:

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

那也不行。在这一点上，我已经阅读了文档，但是我很困惑该怎么做。

Answer 1

您的查询不起作用的原因是因为它试图从 tickets 对象的根中提取 id 属性，该对象不存在，因为该列正在存储对象数组。

相反，您应该能够通过

获得您想要的结果

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

或

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

目前我认为 Laravel 中没有具体的方法可以做到这一点。

综上所述，我肯定会推荐@Chris Linnenkohl 的回答中的方法，并为您的门票创建一个单独的 table，然后您可以只使用 hasMany 关系。

如何在 mysql 和 laravel 中查询 json 对象数组

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