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not_eq.ex
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not_eq.ex
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defmodule Ash.Query.Operator.NotEq do
@moduledoc """
left != right
In comparison, simplifies to `not(left == right)`
"""
use Ash.Query.Operator, operator: :!=, predicate?: true
alias Ash.Query.Not
alias Ash.Query.Operator.Eq
def new(%Ref{} = ref, nil) do
Ash.Query.Operator.new(Ash.Query.Operator.IsNil, ref, false)
end
def new(%Ref{attribute: %{type: type}} = left, right) do
case Ash.Type.cast_input(type, right) do
{:ok, casted} ->
{:ok, left, casted}
_ ->
{:error,
Ash.Error.Query.InvalidFilterValue.exception(
value: right,
message: "Could not be casted to type #{inspect(type)}",
context: %__MODULE__{left: left, right: right}
)}
end
end
def new(left, right) do
{:known, left != right}
end
def evaluate(%{left: left, right: right}) do
left != right
end
def simplify(%__MODULE__{left: left, right: right}) do
%Not{expression: %Eq{left: left, right: right}}
end
end