gorm - datatypes.JSONQuery 多种 JSON 查询方式

一. 官方：https://github.com/go-gorm/datatypes

 

二. model

type User struct {Name                       `gorm:"column:name;type:varchar(255);`Attributes datatypes.JSON  `gorm:"column:attributes;type:json"`
}// 数据内容
user := model.User{Name:   "jsonName",Attributes: datatypes.JSON({"name": "jinzhu", "age": 18, "tags": ["tag1", "tag2"], "orgs": {"orga": "orga1", "orgb": "orgb1", "orgac": "orgc1"}}),
}

 

三. 查询方式

3.1 查询 name=jinzhu

u := query.User
u.WithContext(ctx).Where(gen.Cond(datatypes.JSONQuery("attributes").Equals("jinzhu", "name"))...,
).Find()

 

3.2 多条件查询 orgs.orga=orga1，orgs.orgb=orgb1，orgs.orgc=orgc1

u := query.User
cond := u.WithContext(ctx).Clauses()tagList := map[string]string{"orga": "orga1","orgb": "orgb1","orgc": "orgc1",
}
for k, v := range tagList {cond = cond.OR(gen.Cond(datatypes.JSONQuery("attributes").Equals(v, "orgs", fmt.Sprintf(`"%s"`, k)))...,)
}u.WithContext(ctx).Where(cond).Find()

 

3.3 模糊搜索 tags: ["tag1", "tag2"]，通过查询 "tag"，获取包含 "tag1", "tag2" 的数据

u := query.User
t := "tag"
u.WithContext(ctx).Where(gen.Cond(datatypes.JSONQuery("attributes").Likes(fmt.Sprint("%"+t+"%"), "tags"))...
)