Postgresql go pg-pg:找不到型号id=“，”的dst值

正在获取pg:找不到模型id=、的dst值

我定义了以下模型

// omitting fields which don't seem relevant to the issue
// corresponding queries also shortened as appropriate
type GrProduct struct {
    tableName        struct{} `sql:"gr_product"`
    ID               int64
    Name             string
// fk:Product,joinFK:Category given so that joins are made on category_id and product_id with gr_product_category_mapping
    Categories       []*GrCategory               `pg:",many2many:gr_product_category_mapping,fk:Product,joinFK:Category"`
    CategoryMappings []*GrProductCategoryMapping `pg:",fk:Product"`
}

type GrProductCategoryMapping struct {
    tableName  struct{} `sql:"gr_product_category_mapping"`
    ID         int64
    ProductID  int64 // product_id in db instead of gr_product_id
    CategoryID int // category id in db instead of gr_category_id
    IsPrimary  bool
}

type GrCategory struct {
    tableName                struct{} `sql:"gr_category"`
    ID                       int
    Name                     string
    Products                 []*GrProduct `pg:",many2many:gr_product_category_mapping,fk:Category,joinFK:Product"`
}

试一试这个——

p := models.GrProduct{}
if err := models.DB.Model(&p).
    Column("Categories").
    Where("id = ?", 10).
    Select(); err != nil {
    panic(err)
}

这些是所做的查询

SELECT
    "gr_product"."id",
    "gr_product"."name"  
FROM
    gr_product AS "gr_product" 
WHERE
    (
        id= 10
    );

SELECT
    gr_product_category_mapping.*,
    "gr_category"."id",
    "gr_category"."name"

FROM
    gr_category AS "gr_category" 
JOIN
    gr_product_category_mapping AS gr_product_category_mapping 
        ON (
            gr_product_category_mapping."product_id"
        ) IN (
            (
                10
            )
        ) 
WHERE
    (
        "gr_category"."id" = gr_product_category_mapping."category_id"
    );

我感到恐慌：pg：我想在网上找不到model id=的dst值。 在尝试使用delve进行深入挖掘时，我发现'prefix'm.baseTable.ModelName+u的计算结果为gr_product_u，但可能应该是product_u，因为列包含

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我还没有弄清楚如何覆盖这个默认行为。对于Golang和go pg来说都是新的，如果您能提供任何帮助，我们将不胜感激，谢谢您应该能够使用sql标记覆盖默认的列名

type GrProductCategoryMapping struct {
    tableName  struct{} `sql:"gr_product_category_mapping"`
    ID         int64
    ProductID  int64 `sql:"product_id"`
    CategoryID int   `sql:"category_id"`
    IsPrimary  bool
}

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阅读更多信息。

这是一个在v6.4.6中修复的错误。

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以下是相关问题-

我会尝试一下并让您知道，但ProductID是否已经代表product_id-*更新：这没有帮助您是对的，这不会解决您的问题，我应该更仔细地阅读问题。

type GrProductCategoryMapping struct {
    tableName  struct{} `sql:"gr_product_category_mapping"`
    ID         int64
    ProductID  int64 `sql:"product_id"`
    CategoryID int   `sql:"category_id"`
    IsPrimary  bool
}