go-gorm/datatypes go-gorm/datatypes

  • Stars
    star
    653
  • Rank 68,968 (Top 2 %)
  • Language
    Go
  • License
    MIT License
  • Created over 4 years ago
  • Updated 6 months ago
Twitter logo Share LinkedIn logo Share Facebook logo Share
go-gorm/datatypes
github

go-gorm

Reviews

There are no reviews yet. Be the first to send feedback to the community and the maintainers!

Repository Details

GORM Customized Data Types Collection

GORM Data Types

JSON

sqlite, mysql, postgres supported

import "gorm.io/datatypes"

type UserWithJSON struct {
	gorm.Model
	Name       string
	Attributes datatypes.JSON
}

DB.Create(&User{
	Name:       "json-1",
	Attributes: datatypes.JSON([]byte(`{"name": "jinzhu", "age": 18, "tags": ["tag1", "tag2"], "orgs": {"orga": "orga"}}`)),
}

// Check JSON has keys
datatypes.JSONQuery("attributes").HasKey(value, keys...)

db.Find(&user, datatypes.JSONQuery("attributes").HasKey("role"))
db.Find(&user, datatypes.JSONQuery("attributes").HasKey("orgs", "orga"))
// MySQL
// SELECT * FROM `users` WHERE JSON_EXTRACT(`attributes`, '$.role') IS NOT NULL
// SELECT * FROM `users` WHERE JSON_EXTRACT(`attributes`, '$.orgs.orga') IS NOT NULL

// PostgreSQL
// SELECT * FROM "user" WHERE "attributes"::jsonb ? 'role'
// SELECT * FROM "user" WHERE "attributes"::jsonb -> 'orgs' ? 'orga'


// Check JSON extract value from keys equal to value
datatypes.JSONQuery("attributes").Equals(value, keys...)

DB.First(&user, datatypes.JSONQuery("attributes").Equals("jinzhu", "name"))
DB.First(&user, datatypes.JSONQuery("attributes").Equals("orgb", "orgs", "orgb"))
// MySQL
// SELECT * FROM `user` WHERE JSON_EXTRACT(`attributes`, '$.name') = "jinzhu"
// SELECT * FROM `user` WHERE JSON_EXTRACT(`attributes`, '$.orgs.orgb') = "orgb"

// PostgreSQL
// SELECT * FROM "user" WHERE json_extract_path_text("attributes"::json,'name') = 'jinzhu'
// SELECT * FROM "user" WHERE json_extract_path_text("attributes"::json,'orgs','orgb') = 'orgb'

NOTE: SQlite need to build with json1 tag, e.g: go build --tags json1, refer https://github.com/mattn/go-sqlite3#usage

Date

import "gorm.io/datatypes"

type UserWithDate struct {
	gorm.Model
	Name string
	Date datatypes.Date
}

user := UserWithDate{Name: "jinzhu", Date: datatypes.Date(time.Now())}
DB.Create(&user)
// INSERT INTO `user_with_dates` (`name`,`date`) VALUES ("jinzhu","2020-07-17 00:00:00")

DB.First(&result, "name = ? AND date = ?", "jinzhu", datatypes.Date(curTime))
// SELECT * FROM user_with_dates WHERE name = "jinzhu" AND date = "2020-07-17 00:00:00" ORDER BY `user_with_dates`.`id` LIMIT 1

Time

MySQL, PostgreSQL, SQLite, SQLServer are supported.

Time with nanoseconds is supported for some databases which support for time with fractional second scale.

import "gorm.io/datatypes"

type UserWithTime struct {
    gorm.Model
    Name string
    Time datatypes.Time
}

user := UserWithTime{Name: "jinzhu", Time: datatypes.NewTime(1, 2, 3, 0)}
DB.Create(&user)
// INSERT INTO `user_with_times` (`name`,`time`) VALUES ("jinzhu","01:02:03")

DB.First(&result, "name = ? AND time = ?", "jinzhu", datatypes.NewTime(1, 2, 3, 0))
// SELECT * FROM user_with_times WHERE name = "jinzhu" AND time = "01:02:03" ORDER BY `user_with_times`.`id` LIMIT 1

NOTE: If the current using database is SQLite, the field column type is defined as TEXT type when GORM AutoMigrate because SQLite doesn't have time type.

JSON_SET

sqlite, mysql, postgres supported

import (
	"gorm.io/datatypes"
	"gorm.io/gorm"
)

type UserWithJSON struct {
	gorm.Model
	Name       string
	Attributes datatypes.JSON
}

DB.Create(&UserWithJSON{
	Name:       "json-1",
	Attributes: datatypes.JSON([]byte(`{"name": "json-1", "age": 18, "tags": ["tag1", "tag2"], "orgs": {"orga": "orga"}}`)),
})

type User struct {
	Name string
	Age  int
}

friend := User{
	Name: "Bob",
	Age:  21,
}

// Set fields of JSON column
datatypes.JSONSet("attributes").Set("age", 20).Set("tags[0]", "tag2").Set("orgs.orga", "orgb")

DB.Model(&UserWithJSON{}).Where("name = ?", "json-1").UpdateColumn("attributes", datatypes.JSONSet("attributes").Set("age", 20).Set("tags[0]", "tag3").Set("orgs.orga", "orgb"))
DB.Model(&UserWithJSON{}).Where("name = ?", "json-1").UpdateColumn("attributes", datatypes.JSONSet("attributes").Set("phones", []string{"10085", "10086"}))
DB.Model(&UserWithJSON{}).Where("name = ?", "json-1").UpdateColumn("attributes", datatypes.JSONSet("attributes").Set("phones", gorm.Expr("CAST(? AS JSON)", `["10085", "10086"]`)))
DB.Model(&UserWithJSON{}).Where("name = ?", "json-1").UpdateColumn("attributes", datatypes.JSONSet("attributes").Set("friend", friend))
// MySQL
// UPDATE `user_with_jsons` SET `attributes` = JSON_SET(`attributes`, '$.tags[0]', 'tag3', '$.orgs.orga', 'orgb', '$.age', 20) WHERE name = 'json-1'
// UPDATE `user_with_jsons` SET `attributes` = JSON_SET(`attributes`, '$.phones', CAST('["10085", "10086"]' AS JSON)) WHERE name = 'json-1'
// UPDATE `user_with_jsons` SET `attributes` = JSON_SET(`attributes`, '$.phones', CAST('["10085", "10086"]' AS JSON)) WHERE name = 'json-1'
// UPDATE `user_with_jsons` SET `attributes` = JSON_SET(`attributes`, '$.friend', CAST('{"Name": "Bob", "Age": 21}' AS JSON)) WHERE name = 'json-1'

NOTE: MariaDB does not support CAST(? AS JSON).

NOTE: Path in PostgreSQL is different.

// Set fields of JSON column
datatypes.JSONSet("attributes").Set("{age}", 20).Set("{tags, 0}", "tag2").Set("{orgs, orga}", "orgb")

DB.Model(&UserWithJSON{}).Where("name = ?", "json-1").UpdateColumn("attributes", datatypes.JSONSet("attributes").Set("{age}", 20).Set("{tags, 0}", "tag2").Set("{orgs, orga}", "orgb"))
DB.Model(&UserWithJSON{}).Where("name = ?", "json-1").UpdateColumn("attributes", datatypes.JSONSet("attributes").Set("{phones}", []string{"10085", "10086"}))
DB.Model(&UserWithJSON{}).Where("name = ?", "json-1").UpdateColumn("attributes", datatypes.JSONSet("attributes").Set("{phones}", gorm.Expr("?::jsonb", `["10085", "10086"]`)))
DB.Model(&UserWithJSON{}).Where("name = ?", "json-1").UpdateColumn("attributes", datatypes.JSONSet("attributes").Set("{friend}", friend))
// PostgreSQL
// UPDATE "user_with_jsons" SET "attributes" = JSONB_SET(JSONB_SET(JSONB_SET("attributes", '{age}', '20'), '{tags, 0}', '"tag2"'), '{orgs, orga}', '"orgb"') WHERE name = 'json-1'
// UPDATE "user_with_jsons" SET "attributes" = JSONB_SET("attributes", '{phones}', '["10085","10086"]') WHERE name = 'json-1'
// UPDATE "user_with_jsons" SET "attributes" = JSONB_SET("attributes", '{phones}', '["10085","10086"]'::jsonb) WHERE name = 'json-1'
// UPDATE "user_with_jsons" SET "attributes" = JSONB_SET("attributes", '{friend}', '{"Name": "Bob", "Age": 21}') WHERE name = 'json-1'

JSONType[T]

sqlite, mysql, postgres supported

import "gorm.io/datatypes"

type Attribute struct {
	Sex   int
	Age   int
	Orgs  map[string]string
	Tags  []string
	Admin bool
	Role  string
}

type UserWithJSON struct {
	gorm.Model
	Name       string
	Attributes datatypes.JSONType[Attribute]
}

var user = UserWithJSON{
	Name: "hello",
	Attributes: datatypes.NewJSONType(Attribute{
        Age:  18,
        Sex:  1,
        Orgs: map[string]string{"orga": "orga"},
        Tags: []string{"tag1", "tag2", "tag3"},
    }),
}

// Create
DB.Create(&user)

// First
var result UserWithJSON
DB.First(&result, user.ID)

// Update
jsonMap = UserWithJSON{
	Attributes: datatypes.NewJSONType(Attribute{
        Age:  18,
        Sex:  1,
        Orgs: map[string]string{"orga": "orga"},
        Tags: []string{"tag1", "tag2", "tag3"},
    }),
}

DB.Model(&user).Updates(jsonMap)

NOTE: it's not support json query

JSONSlice[T]

sqlite, mysql, postgres supported

import "gorm.io/datatypes"

type Tag struct {
	Name  string
	Score float64
}

type UserWithJSON struct {
	gorm.Model
	Name       string
	Tags       datatypes.JSONSlice[Tag]
}

var tags = []Tag{{Name: "tag1", Score: 0.1}, {Name: "tag2", Score: 0.2}}
var user = UserWithJSON{
	Name: "hello",
	Tags: datatypes.NewJSONSlice(tags),
}

// Create
DB.Create(&user)

// First
var result UserWithJSON
DB.First(&result, user.ID)

// Update
var tags2 = []Tag{{Name: "tag3", Score: 10.1}, {Name: "tag4", Score: 10.2}}
jsonMap = UserWithJSON{
	Tags: datatypes.NewJSONSlice(tags2),
}

DB.Model(&user).Updates(jsonMap)

NOTE: it's not support json query and db.Pluck method

JSONArray

mysql supported

import "gorm.io/datatypes"

type Params struct {
    ID          int
    Letters     string
    Config      datatypes.JSON
}

//Create
DB.Create(&Param{
    Letters: "JSONArray-1",
    Config:      datatypes.JSON("[\"a\", \"b\"]"),
})

DB.Create(&Param{
    Letters: "JSONArray-2",
    Config:      datatypes.JSON("[\"a\", \"c\"]"),
})

//Query
var retMultiple []Param
DB.Where(datatypes.JSONArrayQuery("config").Contains("c")).Find(&retMultiple)
}

More Repositories

1

gorm

The fantastic ORM library for Golang, aims to be developer friendly
Go
36,763
star
2

gen

Gen: Friendly & Safer GORM powered by Code Generation
Go
2,211
star
3

dbresolver

Multiple databases, read-write splitting FOR GORM
Go
431
star
4

gorm.io

GORM official site
HTML
250
star
5

postgres

GORM PostgreSQL driver
Go
205
star
6

mysql

GORM mysql driver
Go
202
star
7

sqlite

GORM sqlite driver
Go
157
star
8

prometheus

Collect DB Status or user-defined metrics with Prometheus
Go
137
star
9

opentracing

opentracing integration with GORM
Go
100
star
10

caches

Caches Dialector
Go
90
star
11

opentelemetry

opentelemetry for gorm
Go
89
star
12

playground

GORM Playground (Please Create PR for this project to report issues)
Go
86
star
13

optimisticlock

optimistic lock plugin for gorm
Go
83
star
14

sqlserver

GORM sqlserver driver
Go
52
star
15

soft_delete

Soft delete with unix seconds
Go
51
star
16

hints

Optimizer/Index/Comment Hints for GORM
Go
36
star
17

gormx

The GORM ToolBox (WIP)
Go
29
star
18

sqlmock

GORM SQL Mock driver
18
star
19

cli

GORM cli
9
star
20

gendemo

Go
4
star
21

stats

GORM Stats
HTML
3
star
22

orm-benchmark

orm-benchmark
Go
2
star
23

rawsql

Go
2
star