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lib/mongo/write_concern.ex
defmodule Mongo.WriteConcern do
@moduledoc false
import Keywords
def write_concern(opts) do
%{
w: Keyword.get(opts, :w),
j: Keyword.get(opts, :j),
wtimeout: Keyword.get(opts, :wtimeout)
} |> filter_nils() |> filter_empty()
end
def filter_empty(map) when is_map(map) and map == %{} do
nil
end
def filter_empty(map) when is_map(map) do
map
end
def acknowledged?(nil) do
true
end
def acknowledged?(write_concern) when is_map(write_concern) do
case Map.get(write_concern, :w) do
0 -> false
_ -> true
end
end
def acknowledged?(write_concern) when is_list(write_concern) do
case Keyword.get(write_concern, :w) do
0 -> false
_ -> true
end
end
end