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64 lines
1.3 KiB
Elixir
64 lines
1.3 KiB
Elixir
defmodule Pleroma.Web.MastodonAPI.MastodonAPI do
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import Ecto.Query
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import Ecto.Changeset
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alias Pleroma.Repo
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alias Pleroma.User
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@default_limit 20
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def get_followers(user, params \\ %{}) do
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user
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|> User.get_followers_query()
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|> paginate(params)
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|> Repo.all()
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end
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def get_friends(user, params \\ %{}) do
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user
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|> User.get_friends_query()
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|> paginate(params)
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|> Repo.all()
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end
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def paginate(query, params \\ %{}) do
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options = cast_params(params)
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query
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|> restrict(:max_id, options)
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|> restrict(:since_id, options)
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|> restrict(:limit, options)
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|> order_by([u], fragment("? desc nulls last", u.id))
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end
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def cast_params(params) do
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param_types = %{
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max_id: :string,
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since_id: :string,
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limit: :integer
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}
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changeset = cast({%{}, param_types}, params, Map.keys(param_types))
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changeset.changes
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end
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defp restrict(query, :max_id, %{max_id: max_id}) do
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query
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|> where([q], q.id < ^max_id)
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end
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defp restrict(query, :since_id, %{since_id: since_id}) do
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query
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|> where([q], q.id > ^since_id)
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end
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defp restrict(query, :limit, options) do
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limit = Map.get(options, :limit, @default_limit)
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query
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|> limit(^limit)
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end
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defp restrict(query, _, _), do: query
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end
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