From 1d75c45a1dc0cac9dfe35bc491364adac5d0f1d8 Mon Sep 17 00:00:00 2001
From: Neo <neo@sagittal.ai>
Date: Tue, 17 Sep 2024 07:45:24 +0000
Subject: [PATCH 1/2] Add markdown support to post body

Implemented markdown support in the post body to enhance
text formatting capabilities. This change allows users to
enter markdown in the create/update interface and have it
rendered as HTML in the main blog interface. The markdown
library was imported and utilized to convert markdown text
to HTML in the blog index view. Additionally, updated the
form labels to indicate markdown support and ensured safe
rendering of HTML content in the blog index template.

Issue ID: FLAS-67
---
 flaskr/__init__.py                | 1 +
 flaskr/blog.py                    | 4 ++++
 flaskr/templates/blog/create.html | 2 +-
 flaskr/templates/blog/index.html  | 2 +-
 flaskr/templates/blog/update.html | 2 +-
 5 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/flaskr/__init__.py b/flaskr/__init__.py
index b92e3fe4..38d703d3 100644
--- a/flaskr/__init__.py
+++ b/flaskr/__init__.py
@@ -1,6 +1,7 @@
 import os
 
 from flask import Flask, request, g
+import markdown
 
 
 def create_app(test_config=None):
diff --git a/flaskr/blog.py b/flaskr/blog.py
index be0d92c4..9ae4adaf 100644
--- a/flaskr/blog.py
+++ b/flaskr/blog.py
@@ -6,6 +6,7 @@ from flask import render_template
 from flask import request
 from flask import url_for
 from werkzeug.exceptions import abort
+import markdown
 
 from .auth import login_required
 from .db import get_db
@@ -22,6 +23,9 @@ def index():
         " FROM post p JOIN user u ON p.author_id = u.id"
         " ORDER BY created DESC"
     ).fetchall()
+    # Convert markdown to HTML for each post body
+    for post in posts:
+        post['body'] = markdown.markdown(post['body'])
     return render_template("blog/index.html", posts=posts)
 
 
diff --git a/flaskr/templates/blog/create.html b/flaskr/templates/blog/create.html
index 88e31e44..d4af7262 100644
--- a/flaskr/templates/blog/create.html
+++ b/flaskr/templates/blog/create.html
@@ -8,7 +8,7 @@
   <form method="post">
     <label for="title">Title</label>
     <input name="title" id="title" value="{{ request.form['title'] }}" required>
-    <label for="body">Body</label>
+    <label for="body">Body (Markdown supported)</label>
     <textarea name="body" id="body">{{ request.form['body'] }}</textarea>
     <input type="submit" value="Save">
   </form>
diff --git a/flaskr/templates/blog/index.html b/flaskr/templates/blog/index.html
index 4658b876..d10466dc 100644
--- a/flaskr/templates/blog/index.html
+++ b/flaskr/templates/blog/index.html
@@ -19,7 +19,7 @@
           <a class="action" href="{{ url_for('blog.update', id=post['id']) }}">Edit</a>
         {% endif %}
       </header>
-      <p class="body">{{ post['body'] }}</p>
+      <p class="body">{{ post['body']|safe }}</p>
     </article>
     {% if not loop.last %}
       <hr>
diff --git a/flaskr/templates/blog/update.html b/flaskr/templates/blog/update.html
index 2c405e63..5c940aa3 100644
--- a/flaskr/templates/blog/update.html
+++ b/flaskr/templates/blog/update.html
@@ -8,7 +8,7 @@
   <form method="post">
     <label for="title">Title</label>
     <input name="title" id="title" value="{{ request.form['title'] or post['title'] }}" required>
-    <label for="body">Body</label>
+    <label for="body">Body (Markdown supported)</label>
     <textarea name="body" id="body">{{ request.form['body'] or post['body'] }}</textarea>
     <input type="submit" value="Save">
   </form>

From c1f791efee96502f3d996ec323dccb3855765494 Mon Sep 17 00:00:00 2001
From: Neo <neo@sagittal.ai>
Date: Tue, 17 Sep 2024 07:47:14 +0000
Subject: [PATCH 2/2] Fix immutable cursor issue

Address the issue where 'posts' was treated as a mutable object
in 'flaskr/blog.py'. The 'posts' variable is an immutable cursor,
which led to errors when attempting to modify it directly.

The solution involved creating a new list from the cursor to allow
modifications without affecting the original cursor. This change
ensures that the application logic remains intact while preventing
any runtime errors related to immutability.
---
 flaskr/blog.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/flaskr/blog.py b/flaskr/blog.py
index 9ae4adaf..e4008778 100644
--- a/flaskr/blog.py
+++ b/flaskr/blog.py
@@ -23,6 +23,8 @@ def index():
         " FROM post p JOIN user u ON p.author_id = u.id"
         " ORDER BY created DESC"
     ).fetchall()
+    # Convert the immutable cursor to a list of dictionaries
+    posts = [dict(post) for post in posts]
     # Convert markdown to HTML for each post body
     for post in posts:
         post['body'] = markdown.markdown(post['body'])