CODEWITHSUNDEEP
ruby-on-railsactiverecordsingle-table-inheritance
Kirill Salykin
Kirill Salykin

Reputation: 711

Optional type usage in Single Table Inheritance

i have an asset class which have type, name, label etc.

Asset types are: avatar, image, video, summary etc.

I want to have Video < Asset type only for type = 'video', but for all other types - Asset should be used.

If i use self.inheritance_column = 'type' - it fails, because cant find Avatar class. Is there any approach how to map all types to Asset class except video?

Thanks, Kirill Salykin

Upvotes: 0

Views: 169

Answers (1)

Andrew
Andrew

Reputation: 43103

That won't work. You're either doing STI with those types or you aren't.

The way to do it is use type as your STI column, and something like asset_type as your categorization column. Then only video gets the type column, all other assets use the asset_type column to tell what's what.

Upvotes: 1

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