Open
Description
I'm trying to plug this awesome dataloader module. It's working as expected so far but I'm observing redundant ecto queries in the following scenario. Here are absinthe objects of my graphql schema:
object :topic do
field :id, :id
field :title, :string
field :posts, list_of(:post), resolve: dataloader(:db)
field :created_at, :string
field :created_by, :user, resolve: dataloader(:db)
field :updated_at, :string
field :updated_by, :user, resolve: dataloader(:db)
end
object :post do
field :id, :id
field :content, :string
field :created_at, :string
field :created_by, :user, resolve: dataloader(:db)
field :updated_at, :string
field :updated_by, :user, resolve: dataloader(:db)
endWhen I fire the query below I observe 4 queries select * from users....:
query {
topic {
title created_by { name } updated_by { name }
posts {
content created_by { name } updated_by { name }
}
}
}Is there a way to define the absinthe objects so that there will be just one query for the users?
EDIT: the "hack" below is wrong (see my comment).
I managed to reduce the number of user queries by two using this “hack”
field :updated_by, :user, resolve: dataloader(:db, :created_by)But is there a proper way to specify a unique key for all four fields?