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What version of Go are you using (go version)?

go version go1.12.1 linux/amd64

Which database and its version are you using?

postgres:9.6

Please provide a complete runnable program to reproduce your issue. IMPORTANT

I am using this model with a many to many association : 

    type School struct {
    ID                int      `gorm:"primary_key"`
    Accreditations    []Accreditation `gorm:"many2many:school_accreditation"`
    Name              string `gorm:"not null"`
   }

    // Retrieve all schools from Pg
    var schools []models.School

    service.DB.
        Model(models.School{}).
        Preload("Accreditations").
        Find(&schools)

It works well. Except that the association table has an additional field, and this one is not returned when retrieving the main School entity. How can I do to include it?

Comment From: COil

Answering to my myself , I added the field in the linked model as "ignore" and it works, the column is automatically retrieved from the association table.

type Accreditation struct {
        // accreditation
    ID          int `gorm:"primary_key"`
    Name        string
    Description string
        // school accreditation
    EndAt       time.Time `gorm:"-"`
}

Comment From: sneko

@COil curious to know how you managed at that time the association table with extra columns? On my side I create a third struct to define additional tables.

Also, if you ignore the EndAt in your example, how do you put data easily when inserting a School linked to a Accreditation?

Thank you,

EDIT: ok it seems https://github.com/go-gorm/gorm.io/commit/654fd7e8b5e2f431b4f104653f483dd83b841c41 could do the trick since the third struct exists in my code

Comment From: COil

Sorry, that's a long time ago.

Comment From: nccapo

@COil curious to know how you managed at that time the association table with extra columns? On my side I create a third struct to define additional tables.

Also, if you ignore the EndAt in your example, how do you put data easily when inserting a School linked to a Accreditation?

Thank you,

EDIT: ok it seems go-gorm/gorm.io@654fd7e could do the trick since the third struct exists in my code

Hi, i just wonder if it's a correct way to define third struct. Thanks

Comment From: COil

That's a long time ago sorry, leaving this issue. Good luck.