show only the last decompiled contract

CHANGELOG.md

@@ -22,6 +22,7 @@
 
 ### Chore
 - [#2127](https://github.com/poanetwork/blockscout/pull/2127) - use previouse chromedriver version
+- [#2118](https://github.com/poanetwork/blockscout/pull/2118) - show only the last decompiled contract
 
 ### Chore
 

apps/block_scout_web/lib/block_scout_web/templates/address_decompiled_contract/index.html.eex

@@ -2,7 +2,8 @@
   <%= render BlockScoutWeb.AddressView, "overview.html", assigns %>
   <div class="card">
     <%= render BlockScoutWeb.AddressView, "_tabs.html", assigns %>
-    <%= for contract <- sort_contracts_by_version(@address.decompiled_smart_contracts) do %>
+    <% contract = last_decompiled_contract_version(@address.decompiled_smart_contracts) %>
+    <%= if contract do %>
       <div class="card-body">
         <h3><%= gettext "Decompiler version" %></h3>
         <div class="tile tile-muted">
@@ -21,6 +22,10 @@
           </div>
         </section>
       </div>
+   <% else %>
+     <div class="tile tile-muted text-center">
+       <%= gettext "There is no decompilded contracts for this address." %>
+     </div>
    <% end %>
   </div>
 </section>

apps/block_scout_web/lib/block_scout_web/views/address_decompiled_contract_view.ex

@@ -230,10 +230,8 @@ defmodule BlockScoutWeb.AddressDecompiledContractView do
     end)
   end
 
-  def sort_contracts_by_version(decompiled_contracts) do
-    decompiled_contracts
-    |> Enum.sort_by(& &1.decompiler_version)
-    |> Enum.reverse()
+  def last_decompiled_contract_version(decompiled_contracts) do
+    Enum.max_by(decompiled_contracts, & &1.decompiler_version)
   end
 
   defp add_line_numbers(code) do

apps/block_scout_web/priv/gettext/default.pot

@@ -1490,7 +1490,7 @@ msgid "EVM Version"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address_decompiled_contract/index.html.eex:16
+#: lib/block_scout_web/templates/address_decompiled_contract/index.html.eex:17
 msgid "Copy Decompiled Contract Code"
 msgstr ""
 
@@ -1505,12 +1505,12 @@ msgid "Decompiled code"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address_decompiled_contract/index.html.eex:14
+#: lib/block_scout_web/templates/address_decompiled_contract/index.html.eex:15
 msgid "Decompiled contract code"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address_decompiled_contract/index.html.eex:7
+#: lib/block_scout_web/templates/address_decompiled_contract/index.html.eex:8
 msgid "Decompiler version"
 msgstr ""
 
@@ -1697,3 +1697,8 @@ msgstr ""
 #: lib/block_scout_web/templates/transaction/overview.html.eex:178
 msgid " Token Transfer"
 msgstr ""
+
+#, elixir-format
+#: lib/block_scout_web/templates/address_decompiled_contract/index.html.eex:27
+msgid "There is no decompilded contracts for this address."
+msgstr ""

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

@@ -1490,7 +1490,7 @@ msgid "EVM Version"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address_decompiled_contract/index.html.eex:16
+#: lib/block_scout_web/templates/address_decompiled_contract/index.html.eex:17
 msgid "Copy Decompiled Contract Code"
 msgstr ""
 
@@ -1505,12 +1505,12 @@ msgid "Decompiled code"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address_decompiled_contract/index.html.eex:14
+#: lib/block_scout_web/templates/address_decompiled_contract/index.html.eex:15
 msgid "Decompiled contract code"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/address_decompiled_contract/index.html.eex:7
+#: lib/block_scout_web/templates/address_decompiled_contract/index.html.eex:8
 msgid "Decompiler version"
 msgstr ""
 
@@ -1693,7 +1693,12 @@ msgstr ""
 msgid "New Smart Contract Verification"
 msgstr ""
 
-#, elixir-format, fuzzy
+#, elixir-format
 #: lib/block_scout_web/templates/transaction/overview.html.eex:178
 msgid " Token Transfer"
 msgstr ""
+
+#, elixir-format, fuzzy
+#: lib/block_scout_web/templates/address_decompiled_contract/index.html.eex:27
+msgid "There is no decompilded contracts for this address."
+msgstr ""

apps/block_scout_web/test/block_scout_web/views/address_decompiled_contract_view_test.exs

@@ -96,15 +96,15 @@ defmodule BlockScoutWeb.AddressDecompiledContractViewTest do
     end
   end
 
-  describe "sort_contracts_by_version/1" do
-    test "sorts contracts in lexicographical order" do
+  describe "last_decompiled_contract_version/1" do
+    test "returns last version" do
       contract2 = insert(:decompiled_smart_contract, decompiler_version: "v2")
       contract1 = insert(:decompiled_smart_contract, decompiler_version: "v1")
       contract3 = insert(:decompiled_smart_contract, decompiler_version: "v3")
 
-      result = AddressDecompiledContractView.sort_contracts_by_version([contract2, contract1, contract3])
+      result = AddressDecompiledContractView.last_decompiled_contract_version([contract2, contract1, contract3])
 
-      assert result == [contract3, contract2, contract1]
+      assert result == contract3
     end
   end
 end