Gorm: invalid sql type StringArray (slice) for postgres

[mehdy]

I want to use the postgres array and I'm using the pq.StringArray as a type for may array which I know and expect that it has implemented the Scanner interface but when I use AutoMigrate(&Post) for example I still get this error:
invalid sql type StringArray (slice) for postgres

import "github.com/lib/pq"
...
type Post struct {
    ...
    Tags        pq.StringArray
}

[mehdy]

I solved it by using the gorm tag like this:

import "github.com/lib/pq"
...
type Post struct {
    ...
    Tags        pq.StringArray `gorm:"type:varchar(64)[]"`
}

I tried it the first time too but there was an accidental space after the gorm: and it wasn't working without any errors like this:

Tags        pq.StringArray `gorm: "type:varchar(64)[]"`

anyway it's working now

[MarkPochert]

@mehdy Thanks for your solution. I found a small typo in your snippet

type Post struct { ... Tags pq.StringArray `gorm:"type:varchar(64)[]"` //Missing " at the end }

[wenweih]

@mehdy no space work for me

[gocs]

I used gorm: "type:text[]"
works fine
anything wrong with that?

[charlesgreen]

It would be great if there was an example in the docs.
This was very helpful.