3.4 Remove hardlink URL in template

first_django_app.md

@@ -224,3 +224,19 @@ Here `path()` function is passed **route** and **view**; two additional option a
 ```
 
 模板系统统一使用点符号来访问变量的属性
+
+### 3.5 Remove hardlink URL in template
+
+In template `polls/index.html`, links are hardcoded as shown
+
+```html
+    {% for question in latest_question_list %}
+        <li><a href="/polls/{{ question.id }}/">{{ question.question_text }}</a></li>
+    {% endfor %}
+```
+
+Consider `index.html` will be reused numerous times, 去耦合is necessary.
+
+```html
+<li><a href="{% url 'detail' question.id %}">{{ question.question_text }}</a></li>
+```

src/polls/templates/polls/index.html

@@ -1,7 +1,7 @@
 {% if latest_question_list %}
     <ul>
     {% for question in latest_question_list %}
-        <li><a href="/polls/{{ question.id }}/">{{ question.question_text }}</a></li>
+        <li><a href="{% url 'detail' question.id %}">{{ question.question_text }}</a></li>
     {% endfor %}
     </ul>
 {% else %}