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Pure Elixir HL7 v2.x toolkit — schema-driven parsing, typed segments, message builder, MLLP transport
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lib/hl7v2/type/qip.ex
defmodule HL7v2.Type.QIP do
@moduledoc """
Query Input Parameter List (QIP) -- HL7v2 composite data type.
Used in QPD segment for passing query parameters.
2 components:
1. Segment Field Name (ST) -- e.g., "@PID.3.1"
2. Values (ST)
"""
@behaviour HL7v2.Type
alias HL7v2.Type
defstruct [:segment_field_name, :values]
@type t :: %__MODULE__{
segment_field_name: binary() | nil,
values: binary() | nil
}
@doc """
Parses a QIP from a list of components.
## Examples
iex> HL7v2.Type.QIP.parse(["@PID.3.1", "12345"])
%HL7v2.Type.QIP{segment_field_name: "@PID.3.1", values: "12345"}
iex> HL7v2.Type.QIP.parse(["@PID.5.1"])
%HL7v2.Type.QIP{segment_field_name: "@PID.5.1"}
iex> HL7v2.Type.QIP.parse([])
%HL7v2.Type.QIP{}
"""
@spec parse(list()) :: t()
def parse(components) when is_list(components) do
%__MODULE__{
segment_field_name: Type.get_component(components, 0),
values: Type.get_component(components, 1)
}
end
@doc """
Encodes a QIP to a list of component strings.
## Examples
iex> HL7v2.Type.QIP.encode(%HL7v2.Type.QIP{segment_field_name: "@PID.3.1", values: "12345"})
["@PID.3.1", "12345"]
iex> HL7v2.Type.QIP.encode(%HL7v2.Type.QIP{segment_field_name: "@PID.5.1"})
["@PID.5.1"]
iex> HL7v2.Type.QIP.encode(nil)
[]
"""
@spec encode(t() | nil) :: list()
def encode(nil), do: []
def encode(%__MODULE__{} = qip) do
[
qip.segment_field_name || "",
qip.values || ""
]
|> Type.trim_trailing()
end
end