Fix database not available (Zeitwerk and Docker error)

Gemfile.lock

@@ -513,6 +513,8 @@ GEM
     net-smtp (0.3.3)
       net-protocol
     nio4r (2.5.9)
+    nokogiri (1.14.5-arm64-darwin)
+      racc (~> 1.4)
     nokogiri (1.14.5-x86_64-linux)
       racc (~> 1.4)
     oauth (1.1.0)
@@ -799,6 +801,7 @@ GEM
     zeitwerk (2.6.11)
 
 PLATFORMS
+  arm64-darwin-22
   x86_64-linux
 
 DEPENDENCIES

lib/decidim/term_customizer/i18n_backend.rb

@@ -15,7 +15,7 @@ module Implementation
         # Get available locales from the translations hash
         def available_locales
           Translation.available_locales
-        rescue ::ActiveRecord::StatementInvalid
+        rescue ::ActiveRecord::StatementInvalid, ::ActiveRecord::ConnectionNotEstablished, ::PG::ConnectionBad
           []
         end
 

spec/lib/decidim/term_customizer/i18n_backend_spec.rb

@@ -78,6 +78,22 @@
     end
   end
 
+  context "when the translation query raises ActiveRecord::StatementInvalid" do
+    it "returns and empty result" do
+      allow(Decidim::TermCustomizer::Translation).to receive(:available_locales).and_raise(ActiveRecord::ConnectionNotEstablished)
+
+      expect(subject.available_locales).to be_empty
+    end
+  end
+
+  context "when there is no database connection" do
+    it "returns and empty result" do
+      allow(Decidim::TermCustomizer::Translation).to receive(:available_locales).and_raise(PG::ConnectionBad)
+
+      expect(subject.available_locales).to be_empty
+    end
+  end
+
   describe "#initialized?" do
     context "when translations are not loaded" do
       it "returns false" do