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mariaex

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Pure elixir database driver for MariaDB / MySQL.

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mariaex lib mariaex structs.ex
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lib/mariaex/structs.ex 

defmodule Mariaex.Result do

  @moduledoc """

  Result struct returned from any successful query. Its fields are:



    * `command` - An atom of the query command, for example: `:select` or

                  `:insert`;

    * `columns` - The column names;

    * `rows` - The result set. A list of tuples, each tuple corresponding to a

               row, each element in the tuple corresponds to a column;

    * `num_rows` - The number of fetched or affected rows;

  """



  @type t :: %__MODULE__{

    command:  atom,

    columns:  [String.t] | nil,

    rows:     [tuple] | nil,

    last_insert_id: integer,

    num_rows: integer,

    decoder: nil | [tuple] | :done}



  defstruct [:command, :columns, :rows, :last_insert_id, :num_rows, :decoder]

end



defmodule Mariaex.Error do

  defexception [:message, :mariadb]



  def message(e) do

    if kw = e.mariadb do

      msg = "(#{kw[:code]}): #{kw[:message]}"

    end



    msg || e.message

  end

end