permalink example

microblog.py

@@ -50,8 +50,14 @@ def write_entry(title, text):
 
 def get_all_entries():
     con = get_database_connection()
-    cur = con.execute('SELECT title, text FROM entries ORDER BY id DESC')
-    return [dict(title=row[0], text=row[1]) for row in cur.fetchall()]
+    cur = con.execute('SELECT id, title, text FROM entries ORDER BY id DESC')
+    return [dict(id=row[0], title=row[1], text=row[2]) for row in cur.fetchall()]
+
+
+def get_one_entry(entry_id):
+    con = get_database_connection()
+    cur = con.execute('SELECT title, text FROM entries where id = ?', entry_id )
+    return cur.fetchone()
 
 
 def do_login(usr, pwd):
@@ -103,5 +109,13 @@ def add_entry():
     return redirect(url_for('show_entries'))
 
 
+@app.route('/permalink/<entry_id>')
+def permalink(entry_id):
+    entry = get_one_entry(entry_id)
+    if entry:
+        return render_template('permalink.html', title=entry[0], text=entry[1])
+    else:
+        abort(404)
+
 if __name__ == '__main__':
     app.run(debug=True)

templates/permalink.html

@@ -0,0 +1,10 @@
+{% extends "layout.html" %}
+{% block body %}
+  {% if session.logged_in %}
+      <h2>{{ title }}</h2>
+      <p> {{ text }}</p>
+  {% else %}
+      <p>You must be logged in to see a permalink (although I'm not sure why).</p>
+  {% endif %}
+  <a href="{{ url_for('show_entries') }}">Home</a>
+{% endblock %}

templates/show_entries.html

@@ -8,7 +8,7 @@
     </div>
     <div class="field">
       <label for="text">Text</label>
-      <textarea name="text" id="text" rows="5" cols="80"></textarea>
+      <textarea name="text" id="text" rows="5" cols="70"></textarea>
     </div>
     <div class="control_row">
       <input type="submit" value="Share" name="Share"/>
@@ -19,7 +19,7 @@ <h2>Posts</h2>
   <ul class="entries">
   {% for entry in entries %}
     <li>
-      <h2>{{ entry.title }}</h2>
+      <h2><a href="{{ url_for('permalink', entry_id=entry.id) }}">{{ entry.title }}</a></h2>
       <div class="entry_body">
       {{ entry.text|safe }}
       </div>
@@ -28,4 +28,4 @@ <h2>{{ entry.title }}</h2>
     <li><em>No entries here so far</em></li>
   {% endfor %}
   </ul>
-{% endblock %}
+{% endblock %}