Refactor data access in navigation and lesson layouts to use nested properties for modules and lessons

Author: cleberhensel

_includes/lesson-navigation.html

@@ -1,6 +1,6 @@
 <nav class="lesson-navigation">
-  {% assign current_module = site.data.modules | where: "id", page.module | first %}
-  {% assign module_lessons = site.data.lessons | where: "module", page.module | sort: "order" %}
+  {% assign current_module = site.data.modules.modules | where: "id", page.module | first %}
+  {% assign module_lessons = site.data.lessons.lessons | where: "module", page.module | sort: "order" %}
 
   {% for lesson in module_lessons %}
     {% if lesson.id == page.lesson_id %}

_includes/navigation.html

@@ -1,14 +1,14 @@
 <nav class="sidebar-navigation">
   <h2>Módulos</h2>
   <ul class="modules-list">
-    {% for module in site.data.modules %}
+    {% for module in site.data.modules.modules %}
       <li>
         <a href="{{ '/modules/' | append: module.slug | relative_url }}">
           {{ module.title }}
         </a>
         <ul class="lessons-list">
           {% for lesson_id in module.lessons %}
-            {% assign lesson = site.data.lessons | where: "id", lesson_id | first %}
+            {% assign lesson = site.data.lessons.lessons | where: "id", lesson_id | first %}
             {% if lesson %}
               <li>
                 <a href="{{ '/modules/' | append: module.slug | append: '/lessons/' | append: lesson.slug | relative_url }}">

_layouts/lesson.html

@@ -46,7 +46,7 @@ <h1>{{ page.title }}</h1>
   <h2>Exercícios Práticos</h2>
   {% if page.exercises %}
     {% for exercise_id in page.exercises %}
-      {% assign exercise = site.data.exercises | where: "id", exercise_id | first %}
+      {% assign exercise = site.data.exercises.exercises | where: "id", exercise_id | first %}
       {% if exercise %}
         <div class="exercise-card">
           <h3>{% if exercise.title %}{{ exercise.title }}{% else %}{{ exercise.slug | replace: '-', ' ' | capitalize }}{% endif %}</h3>

_layouts/module.html

@@ -17,7 +17,7 @@ <h1>{{ page.title }}</h1>
     <h2>Aulas do Módulo</h2>
     <ul>
       {% for lesson_id in page.lessons %}
-        {% assign lesson = site.data.lessons | where: "id", lesson_id | first %}
+        {% assign lesson = site.data.lessons.lessons | where: "id", lesson_id | first %}
         {% if lesson %}
           <li>
             <a href="{{ '/modules/' | append: page.slug | append: '/lessons/' | append: lesson.slug | relative_url }}">