Return new inflections

main.rb

@@ -32,7 +32,8 @@ get '/words/:id' do
       part_of_speech: context.part_of_speech_name(word_id),
       commentary: word_info[:commentary],
       translations: context.translations(word_id),
-      inflections: word_info[:inflections],
+      inflections_old: word_info[:inflections],
+      inflections: context.inflections(word_id),
       examples: context.examples(word_id),
     })
   end
@@ -168,6 +169,37 @@ public
     end.freeze
   end
 
+  def inflections(word_id)
+    word_id = Integer word_id
+
+    result = @db_conn.exec_params(
+      (
+        <<~SQL
+          SELECT inflections.descr, word_forms.value
+          FROM words
+          INNER JOIN parts
+          ON parts.id = words.part_id
+          INNER JOIN inflections
+          ON inflections.part_id = parts.id
+          LEFT JOIN word_forms
+          ON word_forms.inflection_id = inflections.id
+          WHERE words.id = $1 AND word_forms.word_id = $1
+        SQL
+      ),
+      [word_id],
+    ).to_a
+
+    result.map do |row|
+      descr = String(row['descr']).strip.freeze
+      value = String(row['value']).strip.freeze
+
+      {
+        descr: descr,
+        value: value,
+      }
+    end.freeze
+  end
+
   def examples(word_id)
     word_id = Integer word_id