Merge pull request #4776 from blockscout/np-add-reverted-msgs-view

Added view for unsuccessfully fetched values from read functions

CHANGELOG.md

@@ -1,6 +1,7 @@
 ## Current
 
 ### Features
+- [#4776](https://github.com/blockscout/blockscout/pull/4776) - Added view for unsuccessfully fetched values from read functions
 - [#4761](https://github.com/blockscout/blockscout/pull/4761) - ERC-1155 support
 - [#4739](https://github.com/blockscout/blockscout/pull/4739) - Improve logs and inputs decoding
 - [#4747](https://github.com/blockscout/blockscout/pull/4747) - Advanced CSV export

apps/block_scout_web/lib/block_scout_web/templates/smart_contract/_functions.html.eex

@@ -105,32 +105,38 @@
         <div data-function-response></div>
       </div>
     <% else %>
-      <%= if outputs?(function["outputs"]) do %>
-        <% length = Enum.count(function["outputs"]) %>
-        <%= for {output, index} <- Enum.with_index(function["outputs"]) do %>
-          <%= if address?(output["type"]) do %>
-            <div class="py-2 word-break-all">
-              <%= link(
-                output["value"],
-                to: address_path(@conn, :show, output["value"])) %><%= if length > 1 and index < length - 1 do %>,&#160;<% end %>
-            </div>
-          <% else %>
-            <%= if output["type"] == "uint256" do %>
+      <%= cond do %>
+        <%= outputs?(function["outputs"]) -> %>
+          <% length = Enum.count(function["outputs"]) %>
+          <%= for {output, index} <- Enum.with_index(function["outputs"]) do %>
+            <%= if address?(output["type"]) do %>
               <div class="py-2 word-break-all">
-                <div data-wei-ether-converter>
-                  <span data-conversion-unit data-original-value="<%= output["value"] %>"><%= output["value"] %></span>
-                  <span class="py-2 px-2">
-                    <input class="wei-ether" type="checkbox" autocomplete="off">
-                    <span class="d-inline-block" data-conversion-text-wei><%= gettext("WEI")%></span>
-                    <span class="d-none" data-conversion-text-eth><%= gettext("ETH")%></span>
-                  </span>
-                </div>
-              </div> 
+                <%= link(
+                  output["value"],
+                  to: address_path(@conn, :show, output["value"])) %><%= if length > 1 and index < length - 1 do %>,&#160;<% end %>
+              </div>
             <% else %>
-              <%= raw(values_only(output["value"], output["type"], output["components"])) %>
+              <%= if output["type"] == "uint256" do %>
+                <div class="py-2 word-break-all">
+                  <div data-wei-ether-converter>
+                    <span data-conversion-unit data-original-value="<%= output["value"] %>"><%= output["value"] %></span>
+                    <span class="py-2 px-2">
+                      <input class="wei-ether" type="checkbox" autocomplete="off">
+                      <span class="d-inline-block" data-conversion-text-wei><%= gettext("WEI")%></span>
+                      <span class="d-none" data-conversion-text-eth><%= gettext("ETH")%></span>
+                    </span>
+                  </div>
+                </div> 
+              <% else %>
+                <%= raw(values_only(output["value"], output["type"], output["components"])) %>
+              <% end %>
             <% end %>
           <% end %>
-        <% end %>
+        <% error?(function["outputs"]) -> %>
+          <% {:error, text_error} = function["outputs"] %>
+          <div class="alert alert-danger py-2 word-break-all" style="margin-bottom: 0;"><%= text_error %></div>
+        <% true -> %>
+          <% nil %>
       <% end %>
     <% end %>
   </div>

apps/block_scout_web/lib/block_scout_web/views/smart_contract_view.ex

@@ -26,6 +26,15 @@ defmodule BlockScoutWeb.SmartContractView do
 
   def outputs?(outputs) when is_nil(outputs), do: false
 
+  def error?(outputs) when not is_nil(outputs) do
+    case outputs do
+      {:error, _} -> true
+      _ -> false
+    end
+  end
+
+  def error?(outputs) when is_nil(outputs), do: false
+
   def address?(type), do: type in ["address", "address payable"]
   def int?(type), do: String.contains?(type, "int") && !String.contains?(type, "[")
 

apps/block_scout_web/priv/gettext/default.pot

@@ -999,7 +999,7 @@ msgstr ""
 #, elixir-format
 #: lib/block_scout_web/templates/address_token/overview.html.eex:1
 #: lib/block_scout_web/templates/smart_contract/_functions.html.eex:89 lib/block_scout_web/templates/smart_contract/_functions.html.eex:89
-#: lib/block_scout_web/templates/smart_contract/_functions.html.eex:125
+#: lib/block_scout_web/templates/smart_contract/_functions.html.eex:126
 msgid "ETH"
 msgstr ""
 
@@ -2938,7 +2938,7 @@ msgid "Vyper contract"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/smart_contract/_functions.html.eex:124
+#: lib/block_scout_web/templates/smart_contract/_functions.html.eex:125
 msgid "WEI"
 msgstr ""
 

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

@@ -999,7 +999,7 @@ msgstr ""
 #, elixir-format
 #: lib/block_scout_web/templates/address_token/overview.html.eex:1
 #: lib/block_scout_web/templates/smart_contract/_functions.html.eex:89 lib/block_scout_web/templates/smart_contract/_functions.html.eex:89
-#: lib/block_scout_web/templates/smart_contract/_functions.html.eex:125
+#: lib/block_scout_web/templates/smart_contract/_functions.html.eex:126
 msgid "ETH"
 msgstr ""
 
@@ -2938,7 +2938,7 @@ msgid "Vyper contract"
 msgstr ""
 
 #, elixir-format
-#: lib/block_scout_web/templates/smart_contract/_functions.html.eex:124
+#: lib/block_scout_web/templates/smart_contract/_functions.html.eex:125
 msgid "WEI"
 msgstr ""