Add Wei Ecto type (#145)

* Add Wei Ecto type

* Add view helper for manipulating Wei values

* Update templates to use Wei helpers

apps/explorer/lib/explorer/chain.ex

@@ -108,7 +108,7 @@ defmodule Explorer.Chain do
   @doc """
   The `t:Explorer.Chain.Address.t/0` `balance` in `unit`.
   """
-  @spec balance(Address.t(), :wei) :: Wei.t() | nil
+  @spec balance(Address.t(), :wei) :: Wei.wei() | nil
   @spec balance(Address.t(), :gwei) :: Wei.gwei() | nil
   @spec balance(Address.t(), :ether) :: Wei.ether() | nil
   def balance(%Address{balance: balance}, unit) do
@@ -253,9 +253,9 @@ defmodule Explorer.Chain do
   @spec fee(%Transaction{receipt: nil}, :ether | :gwei | :wei) :: {:maximum, Decimal.t()}
   def fee(%Transaction{gas: gas, gas_price: gas_price, receipt: nil}, unit) do
     fee =
-      gas
-      |> Decimal.mult(gas_price)
+      gas_price
       |> Wei.to(unit)
+      |> Decimal.mult(gas)
 
     {:maximum, fee}
   end
@@ -263,9 +263,9 @@ defmodule Explorer.Chain do
   @spec fee(%Transaction{receipt: Receipt.t()}, :ether | :gwei | :wei) :: {:actual, Decimal.t()}
   def fee(%Transaction{gas_price: gas_price, receipt: %Receipt{gas_used: gas_used}}, unit) do
     fee =
-      gas_used
-      |> Decimal.mult(gas_price)
+      gas_price
       |> Wei.to(unit)
+      |> Decimal.mult(gas_used)
 
     {:actual, fee}
   end
@@ -273,7 +273,7 @@ defmodule Explorer.Chain do
   @doc """
   The `t:Explorer.Chain.Transaction.t/0` `gas_price` of the `transaction` in `unit`.
   """
-  @spec gas_price(Transaction.t(), :wei) :: Wei.t()
+  @spec gas_price(Transaction.t(), :wei) :: Wei.wei()
   @spec gas_price(Transaction.t(), :gwei) :: Wei.gwei()
   @spec gas_price(Transaction.t(), :ether) :: Wei.ether()
   def gas_price(%Transaction{gas_price: gas_price}, unit) do
@@ -570,10 +570,10 @@ defmodule Explorer.Chain do
   The `t:Explorer.Chain.Transaction.t/0` or `t:Explorer.Chain.InternalTransaction.t/0` `value` of the `transaction` in
   `unit`.
   """
-  @spec value(InternalTransaction.t(), :wei) :: Wei.t()
+  @spec value(InternalTransaction.t(), :wei) :: Wei.wei()
   @spec value(InternalTransaction.t(), :gwei) :: Wei.gwei()
   @spec value(InternalTransaction.t(), :ether) :: Wei.ether()
-  @spec value(Transaction.t(), :wei) :: Wei.t()
+  @spec value(Transaction.t(), :wei) :: Wei.wei()
   @spec value(Transaction.t(), :gwei) :: Wei.gwei()
   @spec value(Transaction.t(), :ether) :: Wei.ether()
   def value(%type{value: value}, unit) when type in [InternalTransaction, Transaction] do

apps/explorer/lib/explorer/chain/address.ex

@@ -5,7 +5,7 @@ defmodule Explorer.Chain.Address do
 
   use Explorer.Schema
 
-  alias Explorer.Chain.{Credit, Debit}
+  alias Explorer.Chain.{Credit, Debit, Hash, Wei}
 
   @typedoc """
   Hash of the public key for this address.
@@ -21,7 +21,7 @@ defmodule Explorer.Chain.Address do
   * `updated_at` when this address was last updated
   """
   @type t :: %__MODULE__{
-          balance: Decimal.t(),
+          balance: Wei.t(),
           balance_updated_at: DateTime.t(),
           credit: Ecto.Association.NotLoaded.t() | Credit.t() | nil,
           debit: Ecto.Association.NotLoaded.t() | Debit.t() | nil,
@@ -31,7 +31,7 @@ defmodule Explorer.Chain.Address do
         }
 
   schema "addresses" do
-    field(:balance, :decimal)
+    field(:balance, Wei)
     field(:balance_updated_at, Timex.Ecto.DateTime)
     field(:hash, :string)
 

apps/explorer/lib/explorer/chain/credit.ex

@@ -6,13 +6,14 @@ defmodule Explorer.Chain.Credit do
   use Explorer.Schema
 
   alias Ecto.Adapters.SQL
-  alias Explorer.Chain.Address
+  alias Explorer.Chain.{Address, Wei}
   alias Explorer.Repo
 
   @primary_key false
+
   schema "credits" do
     field(:count, :integer)
-    field(:value, :decimal)
+    field(:value, Wei)
 
     timestamps()
 

apps/explorer/lib/explorer/chain/debit.ex

@@ -6,13 +6,13 @@ defmodule Explorer.Chain.Debit do
   use Explorer.Schema
 
   alias Ecto.Adapters.SQL
-  alias Explorer.Chain.Address
+  alias Explorer.Chain.{Address, Wei}
   alias Explorer.Repo
 
   @primary_key false
   schema "debits" do
     field(:count, :integer)
-    field(:value, :decimal)
+    field(:value, Wei)
 
     timestamps()
 

apps/explorer/lib/explorer/chain/internal_transaction.ex

@@ -55,7 +55,7 @@ defmodule Explorer.Chain.InternalTransaction do
     field(:input, :string)
     field(:output, :string)
     field(:trace_address, {:array, :integer})
-    field(:value, :decimal)
+    field(:value, Wei)
 
     timestamps()
 

apps/explorer/lib/explorer/chain/transaction.ex

@@ -73,7 +73,7 @@ defmodule Explorer.Chain.Transaction do
   @typedoc """
   How much the sender is willing to pay in wei per unit of gas.
   """
-  @type wei_per_gas :: non_neg_integer()
+  @type wei_per_gas :: Wei.t()
 
   @typedoc """
   * `block_transaction` - joins this transaction to its `block`
@@ -125,7 +125,7 @@ defmodule Explorer.Chain.Transaction do
 
   schema "transactions" do
     field(:gas, :decimal)
-    field(:gas_price, :decimal)
+    field(:gas_price, Wei)
     field(:hash, :string)
     field(:input, :string)
     field(:nonce, :integer)
@@ -135,7 +135,7 @@ defmodule Explorer.Chain.Transaction do
     field(:standard_v, :string)
     field(:transaction_index, :string)
     field(:v, :string)
-    field(:value, :decimal)
+    field(:value, Wei)
 
     timestamps()
 

apps/explorer/lib/explorer/chain/wei.ex

@@ -3,11 +3,82 @@ defmodule Explorer.Chain.Wei do
   The smallest fractional unit of Ether. Using wei instead of ether allows code to do integer match instead of using
   floats.
 
+  All values represented by the `Wei` struct are assumed to measured in the base unit of wei.
+  See [Etherum Homestead Documentation](http://ethdocs.org/en/latest/ether.html) for examples of various denominations of wei.
+
   Etymology of "wei" comes from [Wei Dai (戴維)](https://en.wikipedia.org/wiki/Wei_Dai), a
   [cypherpunk](https://en.wikipedia.org/wiki/Cypherpunk) who came up with b-money, which outlined modern
   cryptocurrencies.
+
+  ## Interfacing With Ecto
+
+  You can define a field in a schema to be of type Wei for convinience when dealing with Wei values.
+
+      schema "my_schema" do
+        field :gas, Explorer.Chain.Wei
+      end
+
   """
 
+  defstruct ~w(value)a
+
+  @behaviour Ecto.Type
+
+  @impl Ecto.Type
+  def type, do: :decimal
+
+  @impl Ecto.Type
+  def cast("0x" <> hex_wei) do
+    with {int_wei, ""} <- Integer.parse(hex_wei, 16) do
+      decimal = Decimal.new(int_wei)
+      {:ok, %__MODULE__{value: decimal}}
+    else
+      _ -> :error
+    end
+  end
+
+  @impl Ecto.Type
+  def cast(string_wei) when is_binary(string_wei) do
+    with {int_wei, ""} <- Integer.parse(string_wei) do
+      decimal = Decimal.new(int_wei)
+      {:ok, %__MODULE__{value: decimal}}
+    else
+      _ -> :error
+    end
+  end
+
+  @impl Ecto.Type
+  def cast(int_wei) when is_integer(int_wei) do
+    decimal = Decimal.new(int_wei)
+    {:ok, %__MODULE__{value: decimal}}
+  end
+
+  @impl Ecto.Type
+  def cast(%Decimal{} = decimal) do
+    {:ok, %__MODULE__{value: decimal}}
+  end
+
+  @impl Ecto.Type
+  def cast(%__MODULE__{} = wei) do
+    {:ok, wei}
+  end
+
+  @impl Ecto.Type
+  def cast(_), do: :error
+
+  @impl Ecto.Type
+  def dump(%__MODULE__{value: %Decimal{} = decimal}) do
+    {:ok, decimal}
+  end
+
+  @impl Ecto.Type
+  def dump(_), do: :error
+
+  @impl Ecto.Type
+  def load(%Decimal{} = decimal) do
+    {:ok, %__MODULE__{value: decimal}}
+  end
+
   @typedoc """
   Ether is the default unit Ethereum and its side chains are measured in when displaying values to humans.
 
@@ -27,8 +98,15 @@ defmodule Explorer.Chain.Wei do
   """
   @type unit :: :wei | :gwei | :ether
 
+  @typedoc """
+  The smallest fractional unit of Ether.
+  """
+  @type wei :: Decimal.t()
+
   @typedoc @moduledoc
-  @type t :: Decimal.t()
+  @type t :: %__MODULE__{
+          value: Decimal.t()
+        }
 
   # Constants
 
@@ -38,68 +116,85 @@ defmodule Explorer.Chain.Wei do
   ## Functions
 
   @doc """
+  Converts `Decimal` representations of various wei denominations (wei, Gwei, ether) to
+  a wei base unit.
+
+  ## Examples
+
   Convert wei to itself.
 
       iex> Explorer.Chain.Wei.from(Decimal.new(1), :wei)
-      Decimal.new(1)
+      %Explorer.Chain.Wei{value: Decimal.new(1)}
 
   Convert `t:gwei/0` to wei.
 
       iex> Explorer.Chain.Wei.from(Decimal.new(1), :gwei)
-      Decimal.new(1_000_000_000)
+      %Explorer.Chain.Wei{value: Decimal.new(1_000_000_000)}
 
   Convert `t:ether/0` to wei.
 
       iex> Explorer.Chain.Wei.from(Decimal.new(1), :ether)
-      Decimal.new(1_000_000_000_000_000_000)
+      %Explorer.Chain.Wei{value: Decimal.new(1_000_000_000_000_000_000)}
 
   """
 
   @spec from(ether(), :ether) :: t()
-  def from(ether, :ether) do
-    Decimal.mult(ether, @wei_per_ether)
+  def from(%Decimal{} = ether, :ether) do
+    %__MODULE__{value: Decimal.mult(ether, @wei_per_ether)}
   end
 
   @spec from(gwei(), :gwei) :: t()
-  def from(gwei, :gwei) do
-    Decimal.mult(gwei, @wei_per_gwei)
+  def from(%Decimal{} = gwei, :gwei) do
+    %__MODULE__{value: Decimal.mult(gwei, @wei_per_gwei)}
   end
 
   @spec from(t(), :wei) :: t()
-  def from(wei, :wei), do: wei
+  def from(%Decimal{} = wei, :wei) do
+    %__MODULE__{value: wei}
+  end
 
   @doc """
+  Converts a `Wei` value to another denomination of wei represented in `Decimal`.
+
+  ## Examples
+
   Convert wei to itself.
 
-      iex> Explorer.Chain.Wei.to(Decimal.new(1), :wei)
+      iex> Explorer.Chain.Wei.to(%Explorer.Chain.Wei{value: Decimal.new(1)}, :wei)
       Decimal.new(1)
 
   Convert wei to `t:gwei/0`.
 
-      iex> Explorer.Chain.Wei.to(Decimal.new(1), :gwei)
+      iex> Explorer.Chain.Wei.to(%Explorer.Chain.Wei{value: Decimal.new(1)}, :gwei)
       Decimal.new("1e-9")
-      iex> Explorer.Chain.Wei.to(Decimal.new("1e9"), :gwei)
+      iex> Explorer.Chain.Wei.to(%Explorer.Chain.Wei{value: Decimal.new("1e9")}, :gwei)
       Decimal.new(1)
 
   Convert wei to `t:ether/0`.
 
-      iex> Explorer.Chain.Wei.to(Decimal.new(1), :ether)
+      iex> Explorer.Chain.Wei.to(%Explorer.Chain.Wei{value: Decimal.new(1)}, :ether)
       Decimal.new("1e-18")
-      iex> Explorer.Chain.Wei.to(Decimal.new("1e18"), :ether)
+      iex> Explorer.Chain.Wei.to(%Explorer.Chain.Wei{value: Decimal.new("1e18")}, :ether)
       Decimal.new(1)
 
   """
 
   @spec to(t(), :ether) :: ether()
-  def to(wei, :ether) do
+  def to(%__MODULE__{value: wei}, :ether) do
     Decimal.div(wei, @wei_per_ether)
   end
 
   @spec to(t(), :gwei) :: gwei()
-  def to(wei, :gwei) do
+  def to(%__MODULE__{value: wei}, :gwei) do
     Decimal.div(wei, @wei_per_gwei)
   end
 
   @spec to(t(), :wei) :: t()
-  def to(wei, :wei), do: wei
+  def to(%__MODULE__{value: wei}, :wei), do: wei
+end
+
+defimpl Inspect, for: Explorer.Chain.Wei do
+  def inspect(wei, _) do
+    "#Explorer.Chain.Wei<#{Decimal.to_string(wei.value)}>"
+  end
 end

apps/explorer/test/explorer/chain/credit_test.exs

@@ -1,7 +1,7 @@
 defmodule Explorer.Chain.CreditTest do
   use Explorer.DataCase
 
-  alias Explorer.Chain.Credit
+  alias Explorer.Chain.{Credit, Wei}
 
   describe "Repo.all/1" do
     test "returns no rows when there are no addresses" do
@@ -47,7 +47,7 @@ defmodule Explorer.Chain.CreditTest do
       address_id = recipient.id
       Credit.refresh()
       credit = Credit |> where(address_id: ^address_id) |> Repo.one()
-      assert credit.value == Decimal.new(21)
+      assert credit.value == %Wei{value: Decimal.new(21)}
     end
   end
 end

apps/explorer/test/explorer/chain/debit_test.exs

@@ -1,7 +1,7 @@
 defmodule Explorer.Chain.DebitTest do
   use Explorer.DataCase
 
-  alias Explorer.Chain.Debit
+  alias Explorer.Chain.{Debit, Wei}
 
   describe "Repo.all/1" do
     test "returns no rows when there are no addresses" do
@@ -34,7 +34,7 @@ defmodule Explorer.Chain.DebitTest do
       address_id = sender.id
       Debit.refresh()
       debit = Debit |> where(address_id: ^address_id) |> Repo.one()
-      assert debit.value == Decimal.new(21)
+      assert debit.value == %Wei{value: Decimal.new(21)}
     end
 
     test "returns no debits against the recipient" do

apps/explorer/test/explorer/chain/wei_test.exs

@@ -1,5 +1,57 @@
 defmodule Explorer.Chain.WeiTest do
   use ExUnit.Case, async: true
+  alias Explorer.Chain.Wei
 
   doctest Explorer.Chain.Wei
+
+  describe "cast/1" do
+    test "with hex string" do
+      assert Wei.cast("0x142") == {:ok, %Wei{value: Decimal.new(322)}}
+      assert Wei.cast("0xzzz") == :error
+    end
+
+    test "with integer string" do
+      assert Wei.cast("123") == {:ok, %Wei{value: Decimal.new(123)}}
+      assert Wei.cast("123.5") == :error
+      assert Wei.cast("invalid") == :error
+    end
+
+    test "with integer" do
+      assert Wei.cast(123) == {:ok, %Wei{value: Decimal.new(123)}}
+    end
+
+    test "with decimal" do
+      decimal = Decimal.new(123)
+      assert Wei.cast(decimal) == {:ok, %Wei{value: decimal}}
+    end
+
+    test "with Wei struct" do
+      wei = %Wei{value: Decimal.new(123)}
+      assert Wei.cast(wei) == {:ok, wei}
+    end
+
+    test "with unsupported type" do
+      assert Wei.cast(nil) == :error
+    end
+  end
+
+  describe "dump/1" do
+    test "with Wei struct" do
+      decimal = Decimal.new(123)
+      assert Wei.dump(%Wei{value: decimal}) == {:ok, decimal}
+    end
+
+    test "with invalid value" do
+      assert Wei.dump(123) == :error
+    end
+  end
+
+  test "load/1" do
+    decimal = Decimal.new(123)
+    assert Wei.load(decimal) == {:ok, %Wei{value: decimal}}
+  end
+
+  test "type/0" do
+    assert Wei.type() == :decimal
+  end
 end

apps/explorer/test/explorer/chain_test.exs

@@ -3,7 +3,7 @@ defmodule Explorer.ChainTest do
 
   alias Explorer.{Chain, Repo}
 
-  alias Explorer.Chain.{Address, Block, InternalTransaction, Log, Receipt, Transaction}
+  alias Explorer.Chain.{Address, Block, InternalTransaction, Log, Receipt, Transaction, Wei}
 
   # Constants
 
@@ -155,19 +155,19 @@ defmodule Explorer.ChainTest do
 
   describe "balance/2" do
     test "with Address.t with :wei" do
-      assert Chain.balance(%Address{balance: Decimal.new(1)}, :wei) == Decimal.new(1)
+      assert Chain.balance(%Address{balance: %Wei{value: Decimal.new(1)}}, :wei) == Decimal.new(1)
       assert Chain.balance(%Address{balance: nil}, :wei) == nil
     end
 
     test "with Address.t with :gwei" do
-      assert Chain.balance(%Address{balance: Decimal.new(1)}, :gwei) == Decimal.new("1e-9")
-      assert Chain.balance(%Address{balance: Decimal.new("1e9")}, :gwei) == Decimal.new(1)
+      assert Chain.balance(%Address{balance: %Wei{value: Decimal.new(1)}}, :gwei) == Decimal.new("1e-9")
+      assert Chain.balance(%Address{balance: %Wei{value: Decimal.new("1e9")}}, :gwei) == Decimal.new(1)
       assert Chain.balance(%Address{balance: nil}, :gwei) == nil
     end
 
     test "with Address.t with :ether" do
-      assert Chain.balance(%Address{balance: Decimal.new(1)}, :ether) == Decimal.new("1e-18")
-      assert Chain.balance(%Address{balance: Decimal.new("1e18")}, :ether) == Decimal.new(1)
+      assert Chain.balance(%Address{balance: %Wei{value: Decimal.new(1)}}, :ether) == Decimal.new("1e-18")
+      assert Chain.balance(%Address{balance: %Wei{value: Decimal.new("1e18")}}, :ether) == Decimal.new(1)
       assert Chain.balance(%Address{balance: nil}, :ether) == nil
     end
   end
@@ -342,17 +342,17 @@ defmodule Explorer.ChainTest do
 
   describe "fee/2" do
     test "without receipt with :wei unit" do
-      assert Chain.fee(%Transaction{gas: Decimal.new(3), gas_price: Decimal.new(2), receipt: nil}, :wei) ==
+      assert Chain.fee(%Transaction{gas: Decimal.new(3), gas_price: %Wei{value: Decimal.new(2)}, receipt: nil}, :wei) ==
                {:maximum, Decimal.new(6)}
     end
 
     test "without receipt with :gwei unit" do
-      assert Chain.fee(%Transaction{gas: Decimal.new(3), gas_price: Decimal.new(2), receipt: nil}, :gwei) ==
+      assert Chain.fee(%Transaction{gas: Decimal.new(3), gas_price: %Wei{value: Decimal.new(2)}, receipt: nil}, :gwei) ==
                {:maximum, Decimal.new("6e-9")}
     end
 
     test "without receipt with :ether unit" do
-      assert Chain.fee(%Transaction{gas: Decimal.new(3), gas_price: Decimal.new(2), receipt: nil}, :ether) ==
+      assert Chain.fee(%Transaction{gas: Decimal.new(3), gas_price: %Wei{value: Decimal.new(2)}, receipt: nil}, :ether) ==
                {:maximum, Decimal.new("6e-18")}
     end
 
@@ -360,7 +360,7 @@ defmodule Explorer.ChainTest do
       assert Chain.fee(
                %Transaction{
                  gas: Decimal.new(3),
-                 gas_price: Decimal.new(2),
+                 gas_price: %Wei{value: Decimal.new(2)},
                  receipt: %Receipt{gas_used: Decimal.new(2)}
                },
                :wei
@@ -371,7 +371,7 @@ defmodule Explorer.ChainTest do
       assert Chain.fee(
                %Transaction{
                  gas: Decimal.new(3),
-                 gas_price: Decimal.new(2),
+                 gas_price: %Wei{value: Decimal.new(2)},
                  receipt: %Receipt{gas_used: Decimal.new(2)}
                },
                :gwei
@@ -382,7 +382,7 @@ defmodule Explorer.ChainTest do
       assert Chain.fee(
                %Transaction{
                  gas: Decimal.new(3),
-                 gas_price: Decimal.new(2),
+                 gas_price: %Wei{value: Decimal.new(2)},
                  receipt: %Receipt{gas_used: Decimal.new(2)}
                },
                :ether
@@ -392,19 +392,19 @@ defmodule Explorer.ChainTest do
 
   describe "gas_price/2" do
     test ":wei unit" do
-      assert Chain.gas_price(%Transaction{gas_price: Decimal.new(1)}, :wei) == Decimal.new(1)
+      assert Chain.gas_price(%Transaction{gas_price: %Wei{value: Decimal.new(1)}}, :wei) == Decimal.new(1)
     end
 
     test ":gwei unit" do
-      assert Chain.gas_price(%Transaction{gas_price: Decimal.new(1)}, :gwei) == Decimal.new("1e-9")
+      assert Chain.gas_price(%Transaction{gas_price: %Wei{value: Decimal.new(1)}}, :gwei) == Decimal.new("1e-9")
 
-      assert Chain.gas_price(%Transaction{gas_price: Decimal.new("1e9")}, :gwei) == Decimal.new(1)
+      assert Chain.gas_price(%Transaction{gas_price: %Wei{value: Decimal.new("1e9")}}, :gwei) == Decimal.new(1)
     end
 
     test ":ether unit" do
-      assert Chain.gas_price(%Transaction{gas_price: Decimal.new(1)}, :ether) == Decimal.new("1e-18")
+      assert Chain.gas_price(%Transaction{gas_price: %Wei{value: Decimal.new(1)}}, :ether) == Decimal.new("1e-18")
 
-      assert Chain.gas_price(%Transaction{gas_price: Decimal.new("1e18")}, :ether) == Decimal.new(1)
+      assert Chain.gas_price(%Transaction{gas_price: %Wei{value: Decimal.new("1e18")}}, :ether) == Decimal.new(1)
     end
   end
 
@@ -911,7 +911,7 @@ defmodule Explorer.ChainTest do
 
       Chain.update_balance(hash, 5)
 
-      expected_balance = Decimal.new(5)
+      expected_balance = %Wei{value: Decimal.new(5)}
 
       assert {:ok, %Address{balance: ^expected_balance}} = Chain.hash_to_address(hash)
     end
@@ -930,7 +930,7 @@ defmodule Explorer.ChainTest do
     test "creates an address if one does not exist" do
       Chain.update_balance("0xtwizzlers", 88)
 
-      expected_balance = Decimal.new(88)
+      expected_balance = %Wei{value: Decimal.new(88)}
 
       assert {:ok, %Address{balance: ^expected_balance}} = Chain.hash_to_address("0xtwizzlers")
     end
@@ -938,33 +938,33 @@ defmodule Explorer.ChainTest do
 
   describe "value/2" do
     test "with InternalTransaction.t with :wei" do
-      assert Chain.value(%InternalTransaction{value: Decimal.new(1)}, :wei) == Decimal.new(1)
+      assert Chain.value(%InternalTransaction{value: %Wei{value: Decimal.new(1)}}, :wei) == Decimal.new(1)
     end
 
     test "with InternalTransaction.t with :gwei" do
-      assert Chain.value(%InternalTransaction{value: Decimal.new(1)}, :gwei) == Decimal.new("1e-9")
+      assert Chain.value(%InternalTransaction{value: %Wei{value: Decimal.new(1)}}, :gwei) == Decimal.new("1e-9")
 
-      assert Chain.value(%InternalTransaction{value: Decimal.new("1e9")}, :gwei) == Decimal.new(1)
+      assert Chain.value(%InternalTransaction{value: %Wei{value: Decimal.new("1e9")}}, :gwei) == Decimal.new(1)
     end
 
     test "with InternalTransaction.t with :ether" do
-      assert Chain.value(%InternalTransaction{value: Decimal.new(1)}, :ether) == Decimal.new("1e-18")
+      assert Chain.value(%InternalTransaction{value: %Wei{value: Decimal.new(1)}}, :ether) == Decimal.new("1e-18")
 
-      assert Chain.value(%InternalTransaction{value: Decimal.new("1e18")}, :ether) == Decimal.new(1)
+      assert Chain.value(%InternalTransaction{value: %Wei{value: Decimal.new("1e18")}}, :ether) == Decimal.new(1)
     end
 
     test "with Transaction.t with :wei" do
-      assert Chain.value(%Transaction{value: Decimal.new(1)}, :wei) == Decimal.new(1)
+      assert Chain.value(%Transaction{value: %Wei{value: Decimal.new(1)}}, :wei) == Decimal.new(1)
     end
 
     test "with Transaction.t with :gwei" do
-      assert Chain.value(%Transaction{value: Decimal.new(1)}, :gwei) == Decimal.new("1e-9")
-      assert Chain.value(%Transaction{value: Decimal.new("1e9")}, :gwei) == Decimal.new(1)
+      assert Chain.value(%Transaction{value: %Wei{value: Decimal.new(1)}}, :gwei) == Decimal.new("1e-9")
+      assert Chain.value(%Transaction{value: %Wei{value: Decimal.new("1e9")}}, :gwei) == Decimal.new(1)
     end
 
     test "with Transaction.t with :ether" do
-      assert Chain.value(%Transaction{value: Decimal.new(1)}, :ether) == Decimal.new("1e-18")
-      assert Chain.value(%Transaction{value: Decimal.new("1e18")}, :ether) == Decimal.new(1)
+      assert Chain.value(%Transaction{value: %Wei{value: Decimal.new(1)}}, :ether) == Decimal.new("1e-18")
+      assert Chain.value(%Transaction{value: %Wei{value: Decimal.new("1e18")}}, :ether) == Decimal.new(1)
     end
   end
 end

apps/explorer/test/explorer/importers/balance_importer_test.exs

@@ -2,7 +2,7 @@ defmodule Explorer.BalanceImporterTest do
   use Explorer.DataCase
 
   alias Explorer.{Chain, BalanceImporter}
-  alias Explorer.Chain.Address
+  alias Explorer.Chain.{Address, Wei}
 
   describe "import/1" do
     test "it updates the balance for an address" do
@@ -10,7 +10,7 @@ defmodule Explorer.BalanceImporterTest do
 
       BalanceImporter.import("0x5cc18cc34175d358ff8e19b7f98566263c4106a0")
 
-      expected_balance = Decimal.new(1_572_374_181_095_000_000)
+      expected_balance = %Wei{value: Decimal.new(1_572_374_181_095_000_000)}
 
       assert {:ok, %Address{balance: ^expected_balance}} =
                Chain.hash_to_address("0x5cc18cc34175d358ff8e19b7f98566263c4106a0")

apps/explorer/test/explorer/importers/transaction_importer_test.exs

@@ -1,7 +1,7 @@
 defmodule Explorer.TransactionImporterTest do
   use Explorer.DataCase
 
-  alias Explorer.Chain.{Address, BlockTransaction, Transaction}
+  alias Explorer.Chain.{Address, BlockTransaction, Transaction, Wei}
   alias Explorer.TransactionImporter
 
   @raw_transaction %{
@@ -188,8 +188,8 @@ defmodule Explorer.TransactionImporterTest do
       from_address = Address |> Repo.get_by(hash: "0xb2867180771b196518651c174c9240d5e8bd0ecd")
       to_address = Address |> Repo.get_by(hash: "0x24e5b8528fe83257d5fe3497ef616026713347f8")
 
-      assert(from_address.balance == Decimal.new(1_572_374_181_095_000_000))
-      assert(to_address.balance == Decimal.new(1_572_374_181_095_000_000))
+      assert(from_address.balance == %Wei{value: Decimal.new(1_572_374_181_095_000_000)})
+      assert(to_address.balance == %Wei{value: Decimal.new(1_572_374_181_095_000_000)})
     end
   end
 

apps/explorer/test/explorer/workers/import_balance_test.exs

@@ -2,7 +2,7 @@ defmodule Explorer.Workers.ImportBalanceTest do
   import Mock
 
   alias Explorer.Chain
-  alias Explorer.Chain.Address
+  alias Explorer.Chain.{Address, Wei}
   alias Explorer.Workers.ImportBalance
 
   use Explorer.DataCase
@@ -11,7 +11,7 @@ defmodule Explorer.Workers.ImportBalanceTest do
     test "imports the balance for an address" do
       ImportBalance.perform("0x1d12e5716c593b156eb7152ca4360f6224ba3b0a")
 
-      expected_balance = Decimal.new(1_572_374_181_095_000_000)
+      expected_balance = %Wei{value: Decimal.new(1_572_374_181_095_000_000)}
 
       assert {:ok, %Address{balance: ^expected_balance}} =
                Chain.hash_to_address("0x1d12e5716c593b156eb7152ca4360f6224ba3b0a")
@@ -30,7 +30,7 @@ defmodule Explorer.Workers.ImportBalanceTest do
         end do
         ImportBalance.perform_later("0xskateboards")
 
-        expected_balance = Decimal.new(66)
+        expected_balance = %Wei{value: Decimal.new(66)}
 
         assert {:ok, %Address{balance: ^expected_balance}} = Chain.hash_to_address("0xskateboards")
       end

apps/explorer/test/explorer/workers/refresh_balance_test.exs

@@ -3,7 +3,7 @@ defmodule Explorer.Workers.RefreshBalanceTest do
 
   import Mock
 
-  alias Explorer.Chain.{Credit, Debit}
+  alias Explorer.Chain.{Credit, Debit, Wei}
   alias Explorer.Workers.RefreshBalance
 
   describe "perform/0" do
@@ -14,7 +14,7 @@ defmodule Explorer.Workers.RefreshBalanceTest do
         insert(:to_address, address: address, transaction: transaction)
         insert(:receipt, transaction: transaction, status: 1)
         RefreshBalance.perform()
-        assert Repo.one(Credit).value == Decimal.new(20)
+        assert Repo.one(Credit).value == %Wei{value: Decimal.new(20)}
       end
     end
 
@@ -25,7 +25,7 @@ defmodule Explorer.Workers.RefreshBalanceTest do
         insert(:from_address, address: address, transaction: transaction)
         insert(:receipt, transaction: transaction, status: 1)
         RefreshBalance.perform()
-        assert Repo.one(Debit).value == Decimal.new(20)
+        assert Repo.one(Debit).value == %Wei{value: Decimal.new(20)}
       end
     end
   end
@@ -37,7 +37,7 @@ defmodule Explorer.Workers.RefreshBalanceTest do
       insert(:to_address, address: address, transaction: transaction)
       insert(:receipt, transaction: transaction, status: 1)
       RefreshBalance.perform("credit")
-      assert Repo.one(Credit).value == Decimal.new(20)
+      assert Repo.one(Credit).value == %Wei{value: Decimal.new(20)}
     end
 
     test "refreshes debit balances" do
@@ -46,7 +46,7 @@ defmodule Explorer.Workers.RefreshBalanceTest do
       insert(:from_address, address: address, transaction: transaction)
       insert(:receipt, transaction: transaction, status: 1)
       RefreshBalance.perform("debit")
-      assert Repo.one(Debit).value == Decimal.new(20)
+      assert Repo.one(Debit).value == %Wei{value: Decimal.new(20)}
     end
   end
 end

apps/explorer_web/lib/explorer_web.ex

@@ -40,7 +40,7 @@ defmodule ExplorerWeb do
       # Use all HTML functionality (forms, tags, etc)
       use Phoenix.HTML
 
-      import ExplorerWeb.{ErrorHelpers, Gettext, Router.Helpers}
+      import ExplorerWeb.{ErrorHelpers, Gettext, Router.Helpers, WeiHelpers}
       import Scrivener.HTML
     end
   end

apps/explorer_web/lib/explorer_web/templates/address/overview.html.eex

@@ -8,7 +8,7 @@
       <div class="address__item">
         <dt class="address__item-key"><%= gettext "Balance" %></dt>
         <dd class="address__item-value address__balance" title="<%= @address.hash %>" data-test="address_balance">
-          <%= balance(@address) %> <%= gettext "Ether" %>
+          <%= balance(@address) %> 
         </dd>
       </div>
     </dl>

apps/explorer_web/lib/explorer_web/templates/address_transaction/index.html.eex

@@ -118,10 +118,10 @@
                 </div>
               </td>
               <td class="transactions__column transactions__column--value">
-                <%= value(transaction) %> <%= gettext "Ether" %>
+                <%= ExplorerWeb.TransactionView.value(transaction) %>
               </td>
               <td class="transactions__column transactions__column--value">
-                <%= fee(transaction) %> <%= gettext "Ether" %>
+                <%= ExplorerWeb.TransactionView.fee(transaction) %>
               </td>
             </tr>
           <% end %>

apps/explorer_web/lib/explorer_web/templates/block/index.html.eex

@@ -57,13 +57,7 @@
                 <%= block.gas_limit |> Cldr.Number.to_string! %>
               </td>
               <td class="blocks__column blocks__column--optional blocks__column--gas-price">
-                <%= block.transactions
-                    |> Enum.map(fn(transaction) ->
-                         Decimal.to_float(Decimal.div(Decimal.new(transaction.gas_price), Decimal.new(1_000_000_000)))
-                       end)
-                    |> Math.Enum.mean()
-                    |> Kernel.||(0)
-                    |> Cldr.Number.to_string! %> Gwei
+                <%= average_gas_price(block) %>
               </td>
             </tr>
           <% end %>

apps/explorer_web/lib/explorer_web/templates/block_transaction/index.html.eex

@@ -143,7 +143,7 @@
                       ) %></div>
               </td>
               <td class="transactions__column transactions__column--value">
-                <%= value(transaction) %> <%= gettext "Ether" %>
+                <%= ExplorerWeb.TransactionView.value(transaction) %>
               </td>
             </tr>
           <% end %>

apps/explorer_web/lib/explorer_web/templates/chain/show.html.eex

@@ -134,7 +134,7 @@
                   <%= transaction.block.timestamp |> Timex.from_now() %>
                 </td>
                 <td class="transactions__column transactions__column--value">
-                  <%= value(transaction) %> <%= gettext "Ether" %>
+                  <%= ExplorerWeb.TransactionView.value(transaction) %>
                 </td>
               </tr>
             <% end %>

apps/explorer_web/lib/explorer_web/templates/pending_transaction/index.html.eex

@@ -77,7 +77,7 @@
                   <% end %>
                 </td>
                 <td class="transactions__column transactions__column--value">
-                  <%= value(transaction) %> <%= gettext "Ether" %>
+                  <%= ExplorerWeb.TransactionView.value(transaction) %>
                 </td>
               </tr>
             <% end %>

apps/explorer_web/lib/explorer_web/templates/transaction/index.html.eex

@@ -81,7 +81,7 @@
                         ) %></div>
                 </td>
                 <td class="transactions__column transactions__column--value">
-                  <%= value(transaction) %> <%= gettext "Ether" %>
+                  <%= value(transaction) %>
                 </td>
               </tr>
             <% end %>

apps/explorer_web/lib/explorer_web/templates/transaction/overview.html.eex

@@ -41,7 +41,7 @@
         </div>
         <div class="transaction__item">
           <dt class="transaction__item-key"><%= gettext "Value" %></dt>
-          <dd class="transaction__item-value"><%= value(@transaction) %> <%= gettext "Ether" %></dd>
+          <dd class="transaction__item-value"><%= value(@transaction) %></dd>
         </div>
         <div class="transaction__item">
           <dt class="transaction__item-key"><%= gettext "From" %></dt>
@@ -96,8 +96,8 @@
         <div class="transaction__item">
           <dt class="transaction__item-key"><%= gettext "Gas Price" %></dt>
           <dd class="transaction__item-value">
-            <%= gas_price(@transaction, :wei) %> <%= gettext("Wei") %>
-              (<%= gas_price(@transaction, :gwei) %> <%= gettext "Gwei" %>)
+            <%= gas_price(@transaction, :wei) %>
+              (<%= gas_price(@transaction, :gwei) %>)
           </dd>
         </div>
         <div class="transaction__item">

apps/explorer_web/lib/explorer_web/templates/transaction/show.html.eex

@@ -42,7 +42,7 @@
                   to: address_path(@conn, :show, @conn.assigns.locale, transaction.to_address.hash),
                   class: "transaction-log__link") %>
                 </td>
-                <td><%= value(transaction) %></td>
+                <td><%= value(transaction, include_label: false) %></td>
                 <td><%= gas(transaction) %></td>
               </tr>
             </tgroup>

apps/explorer_web/lib/explorer_web/views/address_transaction_view.ex

@@ -3,8 +3,6 @@ defmodule ExplorerWeb.AddressTransactionView do
 
   alias ExplorerWeb.TransactionView
 
-  defdelegate fee(transaction), to: TransactionView
-
   def format_current_filter(filter) do
     case filter do
       "to" -> gettext("To")
@@ -13,6 +11,5 @@ defmodule ExplorerWeb.AddressTransactionView do
     end
   end
 
-  defdelegate status(transacton), to: TransactionView
-  defdelegate value(transaction), to: TransactionView
+  defdelegate status(transaction), to: TransactionView
 end

apps/explorer_web/lib/explorer_web/views/address_view.ex

@@ -1,16 +1,16 @@
 defmodule ExplorerWeb.AddressView do
   use ExplorerWeb, :view
 
-  alias Explorer.Chain
+  alias Explorer.Chain.Address
 
   @dialyzer :no_match
 
-  def balance(address) do
-    address
-    |> Chain.balance(:ether)
-    |> case do
-      nil -> ""
-      ether -> Cldr.Number.to_string!(ether, fractional_digits: 18)
-    end
+  def balance(%Address{balance: nil}), do: ""
+
+  @doc """
+  Returns a formatted address balance and includes the unit.
+  """
+  def balance(%Address{balance: balance}) do
+    format_wei_value(balance, :ether, fractional_digits: 18)
   end
 end

apps/explorer_web/lib/explorer_web/views/block_transaction_view.ex

@@ -6,7 +6,6 @@ defmodule ExplorerWeb.BlockTransactionView do
   # Functions
 
   defdelegate status(transacton), to: TransactionView
-  defdelegate value(transaction), to: TransactionView
   defdelegate age(block), to: BlockView
   defdelegate formatted_timestamp(block), to: BlockView
 end

apps/explorer_web/lib/explorer_web/views/block_view.ex

@@ -1,7 +1,9 @@
 defmodule ExplorerWeb.BlockView do
   use ExplorerWeb, :view
 
-  alias Explorer.Chain.Block
+  import Math.Enum, only: [mean: 1]
+
+  alias Explorer.Chain.{Block, Wei}
 
   @dialyzer :no_match
 
@@ -14,4 +16,17 @@ defmodule ExplorerWeb.BlockView do
   def formatted_timestamp(%Block{timestamp: timestamp}) do
     Timex.format!(timestamp, "%b-%d-%Y %H:%M:%S %p %Z", :strftime)
   end
+
+  def average_gas_price(%Block{transactions: transactions}) do
+    average =
+      transactions
+      |> Enum.map(&Decimal.to_float(Wei.to(&1.gas_price, :gwei)))
+      |> mean()
+      |> Kernel.||(0)
+      |> Cldr.Number.to_string!()
+
+    unit_text = gettext("Gwei")
+
+    "#{average} #{unit_text}"
+  end
 end

apps/explorer_web/lib/explorer_web/views/chain_view.ex

@@ -1,7 +1,3 @@
 defmodule ExplorerWeb.ChainView do
   use ExplorerWeb, :view
-
-  alias ExplorerWeb.TransactionView
-
-  defdelegate value(transaction), to: TransactionView
 end

apps/explorer_web/lib/explorer_web/views/pending_transaction_view.ex

@@ -23,6 +23,4 @@ defmodule ExplorerWeb.PendingTransactionView do
       _ -> nil
     end
   end
-
-  defdelegate value(transaction), to: TransactionView
 end

apps/explorer_web/lib/explorer_web/views/transaction_view.ex

@@ -3,7 +3,7 @@ defmodule ExplorerWeb.TransactionView do
 
   alias Cldr.Number
   alias Explorer.Chain
-  alias Explorer.Chain.{Block, InternalTransaction, Transaction}
+  alias Explorer.Chain.{Block, InternalTransaction, Transaction, Wei}
   alias ExplorerWeb.BlockView
 
   # Functions
@@ -22,15 +22,16 @@ defmodule ExplorerWeb.TransactionView do
     end
   end
 
-  def fee(transaction) do
-    transaction
-    |> Chain.fee(:ether)
-    |> case do
+  @doc """
+  Calculates the transaction fee and returns a formatted display value.
+  """
+  def fee(%Transaction{} = transaction) do
+    case Chain.fee(transaction, :wei) do
       {:actual, actual} ->
-        Cldr.Number.to_string!(actual, fractional_digits: 18)
+        format_wei_value(Wei.from(actual, :wei), :ether, fractional_digits: 18)
 
       {:maximum, maximum} ->
-        "<= " <> Cldr.Number.to_string!(maximum, fractional_digits: 18)
+        "<= " <> format_wei_value(Wei.from(maximum, :wei), :ether, fractional_digits: 18)
     end
   end
 
@@ -56,14 +57,17 @@ defmodule ExplorerWeb.TransactionView do
     end
   end
 
-  def gas(%type{gas: gas}) when type in [InternalTransaction, Transaction] do
+  defguardp is_transaction_type(mod) when mod in [InternalTransaction, Transaction]
+
+  def gas(%type{gas: gas}) when is_transaction_type(type) do
     Cldr.Number.to_string!(gas)
   end
 
-  def gas_price(transaction, unit) do
-    transaction
-    |> Chain.gas_price(unit)
-    |> Cldr.Number.to_string!()
+  @doc """
+  Converts a transaction's gas price to a displayable value.
+  """
+  def gas_price(%Transaction{gas_price: gas_price}, unit) when unit in ~w(wei gwei ether)a do
+    format_wei_value(gas_price, unit)
   end
 
   def last_seen(%Transaction{updated_at: updated_at}) do
@@ -85,9 +89,15 @@ defmodule ExplorerWeb.TransactionView do
     end
   end
 
-  def value(transaction) do
-    transaction
-    |> Chain.value(:ether)
-    |> Cldr.Number.to_string!()
+  @doc """
+  Converts a transaction's Wei value to Ether and returns a formatted display value.
+
+  ## Options
+
+  * `:include_label` - Boolean. Defaults to true. Flag for displaying unit with value.
+  """
+  def value(%mod{value: value}, opts \\ []) when is_transaction_type(mod) do
+    include_label? = Keyword.get(opts, :include_label, true)
+    format_wei_value(value, :ether, include_unit_label: include_label?)
   end
 end

apps/explorer_web/lib/explorer_web/views/wei_helpers.ex

@@ -0,0 +1,93 @@
+defmodule ExplorerWeb.WeiHelpers do
+  @moduledoc """
+  Helper functions for interacting with `t:Explorer.Chain.Wei.t/0` values.
+  """
+
+  import ExplorerWeb.Gettext
+
+  alias Explorer.Chain.Wei
+
+  @valid_units ~w(wei gwei ether)a
+
+  @type format_option :: {:fractional_digits, pos_integer()} | {:include_unit_label, boolean()}
+
+  @type format_options :: [format_option()]
+
+  @doc """
+  Converts a `t:Explorer.Wei.t/0` value to the specified unit including a
+  translated unit label.
+
+  ## Supported Formatting Options
+
+  The third argument allows for keyword options to be passed for formatting the
+  converted number.
+
+  * `:fractional_digits` - Integer. Number of fractional digits to include
+  * `:include_unit_label` - Boolean (Defaults to `true`). Flag for if the unit
+    label should be included in the returned string
+
+  ## Examples
+
+      iex> format_wei_value(%Wei{value: Decimal.new(1)}, :wei)
+      "1 Wei"
+
+      iex> format_wei_value(%Wei{value: Decimal.new(1, 10, 12)}, :gwei)
+      "10,000 Gwei"
+
+      iex> format_wei_value(%Wei{value: Decimal.new(1, 10, 21)}, :ether)
+      "10,000 POA"
+
+      # With formatting options
+
+      iex> format_wei_value(
+      ...>   %Wei{value: Decimal.new(1)},
+      ...>   :wei,
+      ...>   fractional_digits: 3
+      ...> )
+      "1.000 Wei"
+
+      iex> format_wei_value(
+      ...>   %Wei{value: Decimal.new(10)},
+      ...>   :wei,
+      ...>   include_unit_label: false
+      ...> )
+      "10"
+  """
+  @spec format_wei_value(Wei.t(), Wei.unit(), format_options()) :: String.t()
+  def format_wei_value(%Wei{} = wei, unit, options \\ []) when unit in @valid_units do
+    number_format_options = build_number_format_options(options)
+
+    converted_value =
+      wei
+      |> Wei.to(unit)
+      |> Cldr.Number.to_string!(number_format_options)
+
+    if Keyword.get(options, :include_unit_label, true) do
+      display_unit = display_unit(unit)
+      "#{converted_value} #{display_unit}"
+    else
+      converted_value
+    end
+  end
+
+  defp build_number_format_options(options) do
+    Enum.reduce(options, [], fn option, formatted_options ->
+      case parse_number_format_option(option) do
+        nil -> formatted_options
+        {key, value} -> Keyword.put(formatted_options, key, value)
+      end
+    end)
+  end
+
+  defp display_unit(:wei), do: gettext("Wei")
+  defp display_unit(:gwei), do: gettext("Gwei")
+  defp display_unit(:ether), do: gettext("Ether")
+
+  defguardp is_fractional_digit(digits) when is_integer(digits) and digits > 0
+
+  defp parse_number_format_option({:fractional_digits, digits}) when is_fractional_digit(digits) do
+    {:fractional_digits, digits}
+  end
+
+  defp parse_number_format_option(_), do: nil
+end

apps/explorer_web/priv/gettext/default.pot

@@ -171,7 +171,7 @@ msgstr ""
 #: lib/explorer_web/templates/transaction/overview.html.eex:47
 #: lib/explorer_web/templates/transaction/show.html.eex:26
 #: lib/explorer_web/views/address_internal_transaction_view.ex:7
-#: lib/explorer_web/views/address_transaction_view.ex:11
+#: lib/explorer_web/views/address_transaction_view.ex:9
 msgid "From"
 msgstr ""
 
@@ -180,7 +180,7 @@ msgstr ""
 msgid "Overview"
 msgstr ""
 
-#: lib/explorer_web/views/transaction_view.ex:84
+#: lib/explorer_web/views/transaction_view.ex:88
 msgid "Success"
 msgstr ""
 
@@ -194,7 +194,7 @@ msgstr ""
 #: lib/explorer_web/templates/transaction/overview.html.eex:61
 #: lib/explorer_web/templates/transaction/show.html.eex:27
 #: lib/explorer_web/views/address_internal_transaction_view.ex:6
-#: lib/explorer_web/views/address_transaction_view.ex:10
+#: lib/explorer_web/views/address_transaction_view.ex:8
 msgid "To"
 msgstr ""
 
@@ -241,9 +241,9 @@ msgstr ""
 #: lib/explorer_web/templates/transaction/overview.html.eex:56
 #: lib/explorer_web/templates/transaction/overview.html.eex:70
 #: lib/explorer_web/views/transaction_view.ex:20
-#: lib/explorer_web/views/transaction_view.ex:47
-#: lib/explorer_web/views/transaction_view.ex:54
-#: lib/explorer_web/views/transaction_view.ex:83
+#: lib/explorer_web/views/transaction_view.ex:48
+#: lib/explorer_web/views/transaction_view.ex:55
+#: lib/explorer_web/views/transaction_view.ex:87
 msgid "Pending"
 msgstr ""
 
@@ -306,11 +306,11 @@ msgstr ""
 msgid "Next Page"
 msgstr ""
 
-#: lib/explorer_web/views/transaction_view.ex:81
+#: lib/explorer_web/views/transaction_view.ex:85
 msgid "Failed"
 msgstr ""
 
-#: lib/explorer_web/views/transaction_view.ex:82
+#: lib/explorer_web/views/transaction_view.ex:86
 msgid "Out of Gas"
 msgstr ""
 
@@ -329,19 +329,13 @@ msgstr ""
 msgid "Showing #%{number}"
 msgstr ""
 
-#: lib/explorer_web/templates/address/overview.html.eex:11
-#: lib/explorer_web/templates/address_transaction/index.html.eex:121
-#: lib/explorer_web/templates/address_transaction/index.html.eex:124
-#: lib/explorer_web/templates/block_transaction/index.html.eex:146
-#: lib/explorer_web/templates/chain/show.html.eex:137
-#: lib/explorer_web/templates/pending_transaction/index.html.eex:80
-#: lib/explorer_web/templates/transaction/index.html.eex:84
-#: lib/explorer_web/templates/transaction/overview.html.eex:44
 #: lib/explorer_web/templates/transaction/show.html.eex:28
+#: lib/explorer_web/views/wei_helpers.ex:84
 msgid "Ether"
 msgstr ""
 
-#: lib/explorer_web/templates/transaction/overview.html.eex:100
+#: lib/explorer_web/views/block_view.ex:28
+#: lib/explorer_web/views/wei_helpers.ex:83
 msgid "Gwei"
 msgstr ""
 
@@ -381,15 +375,15 @@ msgstr ""
 msgid "Type"
 msgstr ""
 
-#: lib/explorer_web/templates/transaction/overview.html.eex:99
 #: lib/explorer_web/templates/transaction/overview.html.eex:105
+#: lib/explorer_web/views/wei_helpers.ex:82
 msgid "Wei"
 msgstr ""
 
 #: lib/explorer_web/templates/address_internal_transaction/index.html.eex:28
 #: lib/explorer_web/templates/address_transaction/index.html.eex:29
 #: lib/explorer_web/views/address_internal_transaction_view.ex:8
-#: lib/explorer_web/views/address_transaction_view.ex:12
+#: lib/explorer_web/views/address_transaction_view.ex:10
 msgid "All"
 msgstr ""
 

apps/explorer_web/priv/gettext/en/LC_MESSAGES/default.po

@@ -183,7 +183,7 @@ msgstr "Address"
 #: lib/explorer_web/templates/transaction/overview.html.eex:47
 #: lib/explorer_web/templates/transaction/show.html.eex:26
 #: lib/explorer_web/views/address_internal_transaction_view.ex:7
-#: lib/explorer_web/views/address_transaction_view.ex:11
+#: lib/explorer_web/views/address_transaction_view.ex:9
 msgid "From"
 msgstr "From"
 
@@ -192,7 +192,7 @@ msgstr "From"
 msgid "Overview"
 msgstr "Overview"
 
-#: lib/explorer_web/views/transaction_view.ex:84
+#: lib/explorer_web/views/transaction_view.ex:88
 msgid "Success"
 msgstr "Success"
 
@@ -206,7 +206,7 @@ msgstr "Success"
 #: lib/explorer_web/templates/transaction/overview.html.eex:61
 #: lib/explorer_web/templates/transaction/show.html.eex:27
 #: lib/explorer_web/views/address_internal_transaction_view.ex:6
-#: lib/explorer_web/views/address_transaction_view.ex:10
+#: lib/explorer_web/views/address_transaction_view.ex:8
 msgid "To"
 msgstr "To"
 
@@ -253,9 +253,9 @@ msgstr "Showing %{count} Transactions"
 #: lib/explorer_web/templates/transaction/overview.html.eex:56
 #: lib/explorer_web/templates/transaction/overview.html.eex:70
 #: lib/explorer_web/views/transaction_view.ex:20
-#: lib/explorer_web/views/transaction_view.ex:47
-#: lib/explorer_web/views/transaction_view.ex:54
-#: lib/explorer_web/views/transaction_view.ex:83
+#: lib/explorer_web/views/transaction_view.ex:48
+#: lib/explorer_web/views/transaction_view.ex:55
+#: lib/explorer_web/views/transaction_view.ex:87
 msgid "Pending"
 msgstr "Pending"
 
@@ -318,11 +318,11 @@ msgstr ""
 msgid "Next Page"
 msgstr ""
 
-#: lib/explorer_web/views/transaction_view.ex:81
+#: lib/explorer_web/views/transaction_view.ex:85
 msgid "Failed"
 msgstr ""
 
-#: lib/explorer_web/views/transaction_view.ex:82
+#: lib/explorer_web/views/transaction_view.ex:86
 msgid "Out of Gas"
 msgstr ""
 
@@ -341,19 +341,13 @@ msgstr ""
 msgid "Showing #%{number}"
 msgstr ""
 
-#: lib/explorer_web/templates/address/overview.html.eex:11
-#: lib/explorer_web/templates/address_transaction/index.html.eex:121
-#: lib/explorer_web/templates/address_transaction/index.html.eex:124
-#: lib/explorer_web/templates/block_transaction/index.html.eex:146
-#: lib/explorer_web/templates/chain/show.html.eex:137
-#: lib/explorer_web/templates/pending_transaction/index.html.eex:80
-#: lib/explorer_web/templates/transaction/index.html.eex:84
-#: lib/explorer_web/templates/transaction/overview.html.eex:44
 #: lib/explorer_web/templates/transaction/show.html.eex:28
+#: lib/explorer_web/views/wei_helpers.ex:84
 msgid "Ether"
 msgstr "POA"
 
-#: lib/explorer_web/templates/transaction/overview.html.eex:100
+#: lib/explorer_web/views/block_view.ex:28
+#: lib/explorer_web/views/wei_helpers.ex:83
 msgid "Gwei"
 msgstr ""
 
@@ -393,15 +387,15 @@ msgstr ""
 msgid "Type"
 msgstr ""
 
-#: lib/explorer_web/templates/transaction/overview.html.eex:99
 #: lib/explorer_web/templates/transaction/overview.html.eex:105
+#: lib/explorer_web/views/wei_helpers.ex:82
 msgid "Wei"
 msgstr ""
 
 #: lib/explorer_web/templates/address_internal_transaction/index.html.eex:28
 #: lib/explorer_web/templates/address_transaction/index.html.eex:29
 #: lib/explorer_web/views/address_internal_transaction_view.ex:8
-#: lib/explorer_web/views/address_transaction_view.ex:12
+#: lib/explorer_web/views/address_transaction_view.ex:10
 msgid "All"
 msgstr ""
 

apps/explorer_web/test/explorer_web/views/address_transaction_view_test.exs

@@ -1,60 +0,0 @@
-defmodule ExplorerWeb.AddressTransactionViewTest do
-  use Explorer.DataCase
-
-  alias ExplorerWeb.AddressTransactionView
-
-  describe "fee/0" do
-    test "formats the fee for a successful transaction" do
-      insert(:block, number: 24)
-      time = Timex.now() |> Timex.shift(hours: -2)
-
-      block =
-        insert(:block, %{
-          number: 1,
-          gas_used: 99523,
-          timestamp: time
-        })
-
-      to_address = insert(:address, hash: "0xsleepypuppy")
-      from_address = insert(:address, hash: "0xilovefrogs")
-
-      transaction =
-        insert(
-          :transaction,
-          inserted_at: Timex.parse!("1970-01-01T00:00:18-00:00", "{ISO:Extended}"),
-          updated_at: Timex.parse!("1980-01-01T00:00:18-00:00", "{ISO:Extended}"),
-          to_address_id: to_address.id,
-          from_address_id: from_address.id,
-          gas_price: Decimal.new(1_000_000_000.0)
-        )
-        |> with_block(block)
-
-      insert(:receipt, status: 1, gas_used: Decimal.new(435_334), transaction: transaction)
-
-      transaction =
-        transaction
-        |> Repo.preload([:receipt])
-
-      assert AddressTransactionView.fee(transaction) == "0.000,435,334,000,000,000"
-    end
-
-    test "fee returns max_gas for pending transaction" do
-      to_address = insert(:address, hash: "0xchadmuska")
-      from_address = insert(:address, hash: "0xtonyhawk")
-
-      transaction =
-        insert(
-          :transaction,
-          inserted_at: Timex.parse!("1970-01-01T00:00:18-00:00", "{ISO:Extended}"),
-          updated_at: Timex.parse!("1980-01-01T00:00:18-00:00", "{ISO:Extended}"),
-          to_address_id: to_address.id,
-          from_address_id: from_address.id,
-          gas: Decimal.new(21000.0),
-          gas_price: Decimal.new(1_000_000_000.0)
-        )
-        |> Repo.preload([:to_address, :from_address, :receipt])
-
-      assert AddressTransactionView.fee(transaction) == "<= 0.000,021,000,000,000,000"
-    end
-  end
-end

apps/explorer_web/test/explorer_web/views/wei_helpers_test.exs

@@ -0,0 +1,8 @@
+defmodule ExplorerWeb.WeiHelpersTest do
+  use ExUnit.Case
+
+  # Needed for doctest
+  alias Explorer.Chain.Wei
+
+  doctest ExplorerWeb.WeiHelpers, import: true
+end