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elixirphoenix-frameworkecto

Preload all Relationships

I have an ERM similar to this one:

--------     --------     --------
|ModelA|-----|ModelB|-----|ModelC|
--------     --------     --------

I get ModelA and its ModelBs with the following:

modela = Repo.get(ModelA,1)
modela = preload(modela, :modelb)

Now I can access ModelBs with modela.modelb. But how can I preload ModelC aswell? When I print my modelA, it says, that modelc is not loaded.

Solution

  • Can't comment yet but you have to define the nested relationship in ModelA. See Ecto.Schema

    has_one :model_c, through: [:model_b, :model_c]