applies a function to a pipe based on a condition

##Example:

get_name() |> do_if(opts[:uppercase], &String.upcase/1) |> Jason.encode!()

applies a function to a pipe based on a condition tested with present?/1

##Example:

get_record() |> if_true(opts[:key], &Map.get(&1, opts[:key])) |> Jason.encode!()

applies a function to a pipe based on a condition tested with true?/1

##Example:

get_record() |> if_true(opts[:uppercase], &String.upcase/1) |> Jason.encode!()

tests if value is "blank"

tests if value is one of several falsy values.

applies a value when piped value is_empty ( as defined by present?/1 )

##Example:

taxrate_item =

taxrates[taxkey]
|> if_empty(%{tax: "0", net: "0", gross: "0"})
|> taxrate_item_append(create_taxrate_stats_entry_for_item(item))

applies a value when piped value is nil

##Example:

get_max_order_id() |> if_nil(1000)

simple pipeable logger.

setting a loglevel is mandatory

order |> MavuUtils.log("trying to finish order #{order.id}", :info) |> finish_order()

similar to List.wrap, but for maps

macro to only apply a function within a pipe if a condition equals to true.

the conditional gets passed to true?/1 first

##Example:

|> pipe_when(
    item[:taxrate],
    update_in([:taxrates], &update_taxrate_stats(&1, item))
  )

tests if value is "non-blank"

similar to List.wrap, but for strings

tries to convert any value to integer

returns integer on success, nil on failure

tests if value is one of several truthy values and not false?/1

updates query (given as string) with new parameters (given as keyword-list) parameters which values are nil will be removed from the query

updates url (given as string) with new parameters (given as keyword-list) parameters which values are nil will be removed from the query