From 57d5a0adbf010a77d146a3487480a54fdbea5896 Mon Sep 17 00:00:00 2001
From: Ayrat Badykov <ayratin555@gmail.com>
Date: Thu, 18 Apr 2019 13:27:29 +0300
Subject: [PATCH 1/4] optionally show token transfer info

---
 .../templates/transaction/overview.html.eex   | 39 +++++++++++-----
 .../block_scout_web/views/transaction_view.ex | 44 ++++++++++++++++++-
 2 files changed, 70 insertions(+), 13 deletions(-)

diff --git a/apps/block_scout_web/lib/block_scout_web/templates/transaction/overview.html.eex b/apps/block_scout_web/lib/block_scout_web/templates/transaction/overview.html.eex
index 1605a58cd0..90cfe3ee86 100644
--- a/apps/block_scout_web/lib/block_scout_web/templates/transaction/overview.html.eex
+++ b/apps/block_scout_web/lib/block_scout_web/templates/transaction/overview.html.eex
@@ -138,20 +138,35 @@
       </div>
     </div>
 
-    <div class="col-md-12 col-lg-4 d-flex flex-column flex-md-row flex-lg-column">
-      <!-- Value -->
-      <div class="card card-primary flex-grow-1">
-        <div class="card-body">
-          <h2 class="card-title text-white"><%= gettext "Ether" %> <%= gettext "Value" %></h2>
-          <div class="text-right">
-            <h3 class="text-white">
-              <%= value(@transaction) %>
-            </h3>
-            <span class="text-white text-faded" data-wei-value=<%= @transaction.value.value %> data-usd-exchange-rate=<%= @exchange_rate.usd_value %>></span>
+    <%= if erc20_token_transfer?(@transaction) do %>
+      <div class="col-md-12 col-lg-4 d-flex flex-column flex-md-row flex-lg-column">
+        <!-- Value -->
+        <div class="card card-primary flex-grow-1">
+          <div class="card-body">
+            <h2 class="card-title text-white"><%= gettext "ERC-20" %> <%= gettext "Token Transfer" %></h2>
+            <div class="text-right">
+              <h3 class="text-white">
+                <%= erc20_token_transfer_params(@transaction, @token_transfers) %>
+              </h3>
+              <span class="text-white text-faded" data-wei-value=<%= @transaction.value.value %> data-usd-exchange-rate=<%= @exchange_rate.usd_value %>></span>
+            </div>
           </div>
-        </div>
       </div>
-
+    <% else %>
+      <div class="col-md-12 col-lg-4 d-flex flex-column flex-md-row flex-lg-column">
+        <!-- Value -->
+        <div class="card card-primary flex-grow-1">
+          <div class="card-body">
+            <h2 class="card-title text-white"><%= gettext "Ether" %> <%= gettext "Value" %></h2>
+            <div class="text-right">
+              <h3 class="text-white">
+                <%= value(@transaction) %>
+              </h3>
+              <span class="text-white text-faded" data-wei-value=<%= @transaction.value.value %> data-usd-exchange-rate=<%= @exchange_rate.usd_value %>></span>
+            </div>
+          </div>
+      </div>
+    <% end %>
       <!-- Gas -->
       <div class="card flex-grow-1 ml-0 ml-md-5 ml-lg-0">
         <div class="card-body">
diff --git a/apps/block_scout_web/lib/block_scout_web/views/transaction_view.ex b/apps/block_scout_web/lib/block_scout_web/views/transaction_view.ex
index 88013fd4d6..327c65e675 100644
--- a/apps/block_scout_web/lib/block_scout_web/views/transaction_view.ex
+++ b/apps/block_scout_web/lib/block_scout_web/views/transaction_view.ex
@@ -1,11 +1,12 @@
 defmodule BlockScoutWeb.TransactionView do
   use BlockScoutWeb, :view
 
+  alias ABI.TypeDecoder
   alias BlockScoutWeb.{AddressView, BlockView, TabHelpers}
   alias Cldr.Number
   alias Explorer.Chain
   alias Explorer.Chain.Block.Reward
-  alias Explorer.Chain.{Address, Block, InternalTransaction, Transaction, Wei}
+  alias Explorer.Chain.{Address, Block, InternalTransaction, TokenTransfer, Transaction, Wei}
   alias Explorer.ExchangeRates.Token
   alias Timex.Duration
 
@@ -31,6 +32,47 @@ defmodule BlockScoutWeb.TransactionView do
 
   def value_transfer?(_), do: false
 
+  def erc20_token_transfer?(%Transaction{
+        status: :ok,
+        created_contract_address_hash: nil,
+        input: input
+      }) do
+    case to_string(input) do
+      unquote(TokenTransfer.transfer_function_signature()) <> params ->
+        types = [:address, {:uint, 256}]
+
+        try do
+          [_address, _value] =
+            params
+            |> Base.decode16!(case: :mixed)
+            |> TypeDecoder.decode_raw(types)
+
+          true
+        rescue
+          _ -> false
+        end
+
+      _ ->
+        false
+    end
+  end
+
+  def erc20_token_transfer?(_) do
+    false
+  end
+
+  def erc20_token_transfer_params(transaction, _token_transfers) do
+    types = [:address, {:uint, 256}]
+    unquote(TokenTransfer.transfer_function_signature()) <> params = to_string(transaction.input)
+
+    [_address, value] =
+      params
+      |> Base.decode16!(case: :mixed)
+      |> TypeDecoder.decode_raw(types)
+
+    Wei.to(%Wei{value: Decimal.new(value)}, :ether)
+  end
+
   def processing_time_duration(%Transaction{block: nil}) do
     :pending
   end

From 48f257013af067cde068b902393271ac5e599537 Mon Sep 17 00:00:00 2001
From: Ayrat Badykov <ayratin555@gmail.com>
Date: Thu, 18 Apr 2019 14:29:07 +0300
Subject: [PATCH 2/4] finish erc20 info

---
 .../templates/transaction/overview.html.eex   |  9 ++--
 .../block_scout_web/views/transaction_view.ex | 49 +++++++++----------
 2 files changed, 30 insertions(+), 28 deletions(-)

diff --git a/apps/block_scout_web/lib/block_scout_web/templates/transaction/overview.html.eex b/apps/block_scout_web/lib/block_scout_web/templates/transaction/overview.html.eex
index 90cfe3ee86..c952d57793 100644
--- a/apps/block_scout_web/lib/block_scout_web/templates/transaction/overview.html.eex
+++ b/apps/block_scout_web/lib/block_scout_web/templates/transaction/overview.html.eex
@@ -138,7 +138,8 @@
       </div>
     </div>
 
-    <%= if erc20_token_transfer?(@transaction) do %>
+    <% token_transfer = erc20_token_transfer(@transaction, @token_transfers) %>
+    <%= if token_transfer do %>
       <div class="col-md-12 col-lg-4 d-flex flex-column flex-md-row flex-lg-column">
         <!-- Value -->
         <div class="card card-primary flex-grow-1">
@@ -146,9 +147,11 @@
             <h2 class="card-title text-white"><%= gettext "ERC-20" %> <%= gettext "Token Transfer" %></h2>
             <div class="text-right">
               <h3 class="text-white">
-                <%= erc20_token_transfer_params(@transaction, @token_transfers) %>
+                <span class="col-12 col-md-7 ml-3 ml-sm-0">
+                  <%= token_transfer_amount(token_transfer) %>
+                  <%= link(token_symbol(token_transfer.token), to: token_path(BlockScoutWeb.Endpoint, :show, token_transfer.token.contract_address_hash)) %>
+                </span>
               </h3>
-              <span class="text-white text-faded" data-wei-value=<%= @transaction.value.value %> data-usd-exchange-rate=<%= @exchange_rate.usd_value %>></span>
             </div>
           </div>
       </div>
diff --git a/apps/block_scout_web/lib/block_scout_web/views/transaction_view.ex b/apps/block_scout_web/lib/block_scout_web/views/transaction_view.ex
index 327c65e675..a6f58ac33e 100644
--- a/apps/block_scout_web/lib/block_scout_web/views/transaction_view.ex
+++ b/apps/block_scout_web/lib/block_scout_web/views/transaction_view.ex
@@ -11,6 +11,7 @@ defmodule BlockScoutWeb.TransactionView do
   alias Timex.Duration
 
   import BlockScoutWeb.Gettext
+  import BlockScoutWeb.Tokens.Helpers
 
   @tabs ["token_transfers", "internal_transactions", "logs"]
 
@@ -32,45 +33,43 @@ defmodule BlockScoutWeb.TransactionView do
 
   def value_transfer?(_), do: false
 
-  def erc20_token_transfer?(%Transaction{
-        status: :ok,
-        created_contract_address_hash: nil,
-        input: input
-      }) do
-    case to_string(input) do
-      unquote(TokenTransfer.transfer_function_signature()) <> params ->
+  def erc20_token_transfer(
+        %Transaction{
+          status: :ok,
+          created_contract_address_hash: nil,
+          input: input,
+          value: value
+        },
+        token_transfers
+      ) do
+    zero_wei = %Wei{value: Decimal.new(0)}
+
+    case {to_string(input), value} do
+      {unquote(TokenTransfer.transfer_function_signature()) <> params, ^zero_wei} ->
         types = [:address, {:uint, 256}]
 
         try do
-          [_address, _value] =
+          [address, value] =
             params
             |> Base.decode16!(case: :mixed)
             |> TypeDecoder.decode_raw(types)
 
-          true
+          decimal_value = Decimal.new(value)
+
+          Enum.find(token_transfers, fn token_transfer ->
+            token_transfer.to_address_hash.bytes == address && token_transfer.amount == decimal_value
+          end)
         rescue
-          _ -> false
+          _ -> nil
         end
 
       _ ->
-        false
+        nil
     end
   end
 
-  def erc20_token_transfer?(_) do
-    false
-  end
-
-  def erc20_token_transfer_params(transaction, _token_transfers) do
-    types = [:address, {:uint, 256}]
-    unquote(TokenTransfer.transfer_function_signature()) <> params = to_string(transaction.input)
-
-    [_address, value] =
-      params
-      |> Base.decode16!(case: :mixed)
-      |> TypeDecoder.decode_raw(types)
-
-    Wei.to(%Wei{value: Decimal.new(value)}, :ether)
+  def erc20_token_transfer(_, _) do
+    nil
   end
 
   def processing_time_duration(%Transaction{block: nil}) do

From b3cd440361a3225d6bb6b3844ba99f4981cd371b Mon Sep 17 00:00:00 2001
From: Ayrat Badykov <ayratin555@gmail.com>
Date: Thu, 18 Apr 2019 14:30:46 +0300
Subject: [PATCH 3/4] add CHANGELOG entry

---
 CHANGELOG.md                                  |  1 +
 apps/block_scout_web/priv/gettext/default.pot | 46 +++++++++++--------
 .../priv/gettext/en/LC_MESSAGES/default.po    | 46 +++++++++++--------
 3 files changed, 53 insertions(+), 40 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9c6b953228..fc5156caa0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,7 @@
 - [#1739](https://github.com/poanetwork/blockscout/pull/1739) - highlight decompiled source code
 - [#1696](https://github.com/poanetwork/blockscout/pull/1696) - full-text search by tokens
 - [#1742](https://github.com/poanetwork/blockscout/pull/1742) - Support RSK
+- [#1777](https://github.com/poanetwork/blockscout/pull/1777) - show ERC-20 token transfer info on transaction page
 
 ### Fixes
 
diff --git a/apps/block_scout_web/priv/gettext/default.pot b/apps/block_scout_web/priv/gettext/default.pot
index ec9b93cf71..7010a68126 100644
--- a/apps/block_scout_web/priv/gettext/default.pot
+++ b/apps/block_scout_web/priv/gettext/default.pot
@@ -49,7 +49,7 @@ msgid "%{subnetwork} Explorer - BlockScout"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/views/transaction_view.ex:128
+#: lib/block_scout_web/views/transaction_view.ex:169
 msgid "(Awaiting internal transactions for status)"
 msgstr ""
 
@@ -165,7 +165,7 @@ msgid "Block Number"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/views/transaction_view.ex:20
+#: lib/block_scout_web/views/transaction_view.ex:22
 msgid "Block Pending"
 msgstr ""
 
@@ -278,12 +278,12 @@ msgid "Contract Address Pending"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/views/transaction_view.ex:205
+#: lib/block_scout_web/views/transaction_view.ex:246
 msgid "Contract Call"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/views/transaction_view.ex:204
+#: lib/block_scout_web/views/transaction_view.ex:245
 msgid "Contract Creation"
 msgstr ""
 
@@ -377,12 +377,12 @@ msgid "Error trying to fetch balances."
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/views/transaction_view.ex:132
+#: lib/block_scout_web/views/transaction_view.ex:173
 msgid "Error: %{reason}"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/views/transaction_view.ex:130
+#: lib/block_scout_web/views/transaction_view.ex:171
 msgid "Error: (Awaiting internal transactions for reason)"
 msgstr ""
 
@@ -392,7 +392,7 @@ msgstr ""
 #: lib/block_scout_web/templates/layout/app.html.eex:66
 #: lib/block_scout_web/templates/transaction/_pending_tile.html.eex:20
 #: lib/block_scout_web/templates/transaction/_tile.html.eex:27
-#: lib/block_scout_web/templates/transaction/overview.html.eex:145
+#: lib/block_scout_web/templates/transaction/overview.html.eex:163
 #: lib/block_scout_web/views/wei_helpers.ex:72
 msgid "Ether"
 msgstr ""
@@ -431,7 +431,7 @@ msgid "GET"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/transaction/overview.html.eex:158
+#: lib/block_scout_web/templates/transaction/overview.html.eex:176
 msgid "Gas"
 msgstr ""
 
@@ -495,7 +495,7 @@ msgstr ""
 #: lib/block_scout_web/templates/transaction/_tabs.html.eex:43
 #: lib/block_scout_web/templates/transaction_internal_transaction/index.html.eex:10
 #: lib/block_scout_web/views/address_view.ex:295
-#: lib/block_scout_web/views/transaction_view.ex:258
+#: lib/block_scout_web/views/transaction_view.ex:299
 msgid "Internal Transactions"
 msgstr ""
 
@@ -513,7 +513,7 @@ msgid "Less than"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/transaction/overview.html.eex:170
+#: lib/block_scout_web/templates/transaction/overview.html.eex:188
 msgid "Limit"
 msgstr ""
 
@@ -521,7 +521,7 @@ msgstr ""
 #: lib/block_scout_web/templates/transaction/_tabs.html.eex:21
 #: lib/block_scout_web/templates/transaction/_tabs.html.eex:48
 #: lib/block_scout_web/templates/transaction_log/index.html.eex:10
-#: lib/block_scout_web/views/transaction_view.ex:259
+#: lib/block_scout_web/views/transaction_view.ex:300
 msgid "Logs"
 msgstr ""
 
@@ -533,7 +533,7 @@ msgid "Market Cap"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/views/transaction_view.ex:113
+#: lib/block_scout_web/views/transaction_view.ex:154
 msgid "Max of"
 msgstr ""
 
@@ -661,8 +661,8 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/layout/_topnav.html.eex:44
-#: lib/block_scout_web/views/transaction_view.ex:127
-#: lib/block_scout_web/views/transaction_view.ex:161
+#: lib/block_scout_web/views/transaction_view.ex:168
+#: lib/block_scout_web/views/transaction_view.ex:202
 msgid "Pending"
 msgstr ""
 
@@ -762,7 +762,7 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/transaction/_emission_reward_tile.html.eex:8
-#: lib/block_scout_web/views/transaction_view.ex:129
+#: lib/block_scout_web/views/transaction_view.ex:170
 msgid "Success"
 msgstr ""
 
@@ -872,8 +872,9 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/tokens/transfer/_token_transfer.html.eex:4
+#: lib/block_scout_web/templates/transaction/overview.html.eex:147
 #: lib/block_scout_web/templates/transaction_token_transfer/_token_transfer.html.eex:4
-#: lib/block_scout_web/views/transaction_view.ex:203
+#: lib/block_scout_web/views/transaction_view.ex:244
 msgid "Token Transfer"
 msgstr ""
 
@@ -885,7 +886,7 @@ msgstr ""
 #: lib/block_scout_web/templates/transaction/_tabs.html.eex:36
 #: lib/block_scout_web/templates/transaction_token_transfer/index.html.eex:10
 #: lib/block_scout_web/views/tokens/overview_view.ex:35
-#: lib/block_scout_web/views/transaction_view.ex:257
+#: lib/block_scout_web/views/transaction_view.ex:298
 msgid "Token Transfers"
 msgstr ""
 
@@ -926,7 +927,7 @@ msgid "Total transactions"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/views/transaction_view.ex:206
+#: lib/block_scout_web/views/transaction_view.ex:247
 msgid "Transaction"
 msgstr ""
 
@@ -993,7 +994,7 @@ msgid "Unique Token"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/transaction/overview.html.eex:163
+#: lib/block_scout_web/templates/transaction/overview.html.eex:181
 msgid "Used"
 msgstr ""
 
@@ -1014,7 +1015,7 @@ msgid "Validations"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/transaction/overview.html.eex:145
+#: lib/block_scout_web/templates/transaction/overview.html.eex:163
 msgid "Value"
 msgstr ""
 
@@ -1732,3 +1733,8 @@ msgstr ""
 #: lib/block_scout_web/templates/address_contract_verification/new.html.eex:52
 msgid "Optimization runs"
 msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/templates/transaction/overview.html.eex:147
+msgid "ERC-20"
+msgstr ""
diff --git a/apps/block_scout_web/priv/gettext/en/LC_MESSAGES/default.po b/apps/block_scout_web/priv/gettext/en/LC_MESSAGES/default.po
index 2056f772d9..8a18c60018 100644
--- a/apps/block_scout_web/priv/gettext/en/LC_MESSAGES/default.po
+++ b/apps/block_scout_web/priv/gettext/en/LC_MESSAGES/default.po
@@ -49,7 +49,7 @@ msgid "%{subnetwork} Explorer - BlockScout"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/views/transaction_view.ex:128
+#: lib/block_scout_web/views/transaction_view.ex:169
 msgid "(Awaiting internal transactions for status)"
 msgstr ""
 
@@ -165,7 +165,7 @@ msgid "Block Number"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/views/transaction_view.ex:20
+#: lib/block_scout_web/views/transaction_view.ex:22
 msgid "Block Pending"
 msgstr ""
 
@@ -278,12 +278,12 @@ msgid "Contract Address Pending"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/views/transaction_view.ex:205
+#: lib/block_scout_web/views/transaction_view.ex:246
 msgid "Contract Call"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/views/transaction_view.ex:204
+#: lib/block_scout_web/views/transaction_view.ex:245
 msgid "Contract Creation"
 msgstr ""
 
@@ -377,12 +377,12 @@ msgid "Error trying to fetch balances."
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/views/transaction_view.ex:132
+#: lib/block_scout_web/views/transaction_view.ex:173
 msgid "Error: %{reason}"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/views/transaction_view.ex:130
+#: lib/block_scout_web/views/transaction_view.ex:171
 msgid "Error: (Awaiting internal transactions for reason)"
 msgstr ""
 
@@ -392,7 +392,7 @@ msgstr ""
 #: lib/block_scout_web/templates/layout/app.html.eex:66
 #: lib/block_scout_web/templates/transaction/_pending_tile.html.eex:20
 #: lib/block_scout_web/templates/transaction/_tile.html.eex:27
-#: lib/block_scout_web/templates/transaction/overview.html.eex:145
+#: lib/block_scout_web/templates/transaction/overview.html.eex:163
 #: lib/block_scout_web/views/wei_helpers.ex:72
 msgid "Ether"
 msgstr "POA"
@@ -431,7 +431,7 @@ msgid "GET"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/transaction/overview.html.eex:158
+#: lib/block_scout_web/templates/transaction/overview.html.eex:176
 msgid "Gas"
 msgstr ""
 
@@ -495,7 +495,7 @@ msgstr ""
 #: lib/block_scout_web/templates/transaction/_tabs.html.eex:43
 #: lib/block_scout_web/templates/transaction_internal_transaction/index.html.eex:10
 #: lib/block_scout_web/views/address_view.ex:295
-#: lib/block_scout_web/views/transaction_view.ex:258
+#: lib/block_scout_web/views/transaction_view.ex:299
 msgid "Internal Transactions"
 msgstr ""
 
@@ -513,7 +513,7 @@ msgid "Less than"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/transaction/overview.html.eex:170
+#: lib/block_scout_web/templates/transaction/overview.html.eex:188
 msgid "Limit"
 msgstr ""
 
@@ -521,7 +521,7 @@ msgstr ""
 #: lib/block_scout_web/templates/transaction/_tabs.html.eex:21
 #: lib/block_scout_web/templates/transaction/_tabs.html.eex:48
 #: lib/block_scout_web/templates/transaction_log/index.html.eex:10
-#: lib/block_scout_web/views/transaction_view.ex:259
+#: lib/block_scout_web/views/transaction_view.ex:300
 msgid "Logs"
 msgstr ""
 
@@ -533,7 +533,7 @@ msgid "Market Cap"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/views/transaction_view.ex:113
+#: lib/block_scout_web/views/transaction_view.ex:154
 msgid "Max of"
 msgstr ""
 
@@ -661,8 +661,8 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/layout/_topnav.html.eex:44
-#: lib/block_scout_web/views/transaction_view.ex:127
-#: lib/block_scout_web/views/transaction_view.ex:161
+#: lib/block_scout_web/views/transaction_view.ex:168
+#: lib/block_scout_web/views/transaction_view.ex:202
 msgid "Pending"
 msgstr ""
 
@@ -762,7 +762,7 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/transaction/_emission_reward_tile.html.eex:8
-#: lib/block_scout_web/views/transaction_view.ex:129
+#: lib/block_scout_web/views/transaction_view.ex:170
 msgid "Success"
 msgstr ""
 
@@ -872,8 +872,9 @@ msgstr ""
 
 #, elixir-format
 #: lib/block_scout_web/templates/tokens/transfer/_token_transfer.html.eex:4
+#: lib/block_scout_web/templates/transaction/overview.html.eex:147
 #: lib/block_scout_web/templates/transaction_token_transfer/_token_transfer.html.eex:4
-#: lib/block_scout_web/views/transaction_view.ex:203
+#: lib/block_scout_web/views/transaction_view.ex:244
 msgid "Token Transfer"
 msgstr ""
 
@@ -885,7 +886,7 @@ msgstr ""
 #: lib/block_scout_web/templates/transaction/_tabs.html.eex:36
 #: lib/block_scout_web/templates/transaction_token_transfer/index.html.eex:10
 #: lib/block_scout_web/views/tokens/overview_view.ex:35
-#: lib/block_scout_web/views/transaction_view.ex:257
+#: lib/block_scout_web/views/transaction_view.ex:298
 msgid "Token Transfers"
 msgstr ""
 
@@ -926,7 +927,7 @@ msgid "Total transactions"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/views/transaction_view.ex:206
+#: lib/block_scout_web/views/transaction_view.ex:247
 msgid "Transaction"
 msgstr ""
 
@@ -993,7 +994,7 @@ msgid "Unique Token"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/transaction/overview.html.eex:163
+#: lib/block_scout_web/templates/transaction/overview.html.eex:181
 msgid "Used"
 msgstr ""
 
@@ -1014,7 +1015,7 @@ msgid "Validations"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/transaction/overview.html.eex:145
+#: lib/block_scout_web/templates/transaction/overview.html.eex:163
 msgid "Value"
 msgstr ""
 
@@ -1732,3 +1733,8 @@ msgstr ""
 #: lib/block_scout_web/templates/address_contract_verification/new.html.eex:52
 msgid "Optimization runs"
 msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/templates/transaction/overview.html.eex:147
+msgid "ERC-20"
+msgstr ""

From 251aff28ecbc0575eb4c4f3f42430400c3df8c21 Mon Sep 17 00:00:00 2001
From: Ayrat Badykov <ayratin555@gmail.com>
Date: Thu, 18 Apr 2019 15:12:26 +0300
Subject: [PATCH 4/4] check assigns

---
 .../lib/block_scout_web/templates/transaction/overview.html.eex | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/apps/block_scout_web/lib/block_scout_web/templates/transaction/overview.html.eex b/apps/block_scout_web/lib/block_scout_web/templates/transaction/overview.html.eex
index c952d57793..98acd3b3e6 100644
--- a/apps/block_scout_web/lib/block_scout_web/templates/transaction/overview.html.eex
+++ b/apps/block_scout_web/lib/block_scout_web/templates/transaction/overview.html.eex
@@ -138,7 +138,7 @@
       </div>
     </div>
 
-    <% token_transfer = erc20_token_transfer(@transaction, @token_transfers) %>
+    <% token_transfer = assigns[:token_transfers] && erc20_token_transfer(@transaction, @token_transfers) %>
     <%= if token_transfer do %>
       <div class="col-md-12 col-lg-4 d-flex flex-column flex-md-row flex-lg-column">
         <!-- Value -->