This example is a simple blog that demonstrates how to define models, query and save objects using PyMODM. You are invited to run this example, make modifications, and use this as a learning tool or even a template to get started with your own project.

This project is divided into several files:

• blog.py: This is where the main application logic lives.
• blog_models.py: MongoModel definitions live here.
• static: This directory contains static files, like css.
• templates: This directory contains Jinja2 HTML templates.

Follow these directions to start the blog:

1. Make sure that MongoDB is running on localhost:27017. Download MongoDB if you don't have it installed already.
2. Install prerequisite software: this example depends on flask and pymodm. You can install these dependencies automatically by running pip install -r requirements.txt.
3. Start the blog by running python blog.py.
4. Visit the main page in your browser at http://localhost:5000.

After the blog application has been started, there are several URLs available:

• http://localhost:5000: This is the home page. It displays all of the posts in a summarized form.
• http://localhost:5000/posts/<post_id>: This displays the long form of the post with the id post_id. It also displays a form for submitting comments on the post.
• http://localhost:5000/posts/new: When sent a GET request, this returns a page that displays a form for creating a new post. When sent a POST request, this endpoint creates a new post from the form data.
• http://localhost:5000/comments/new: This is the endpoint for creating a new comment object. This endpoint only accepts POST requests (the form for creating a new comment is rendered at posts/post_id).
• http://localhost:5000/users/new: When sent a GET request, this returns a page that displays a form for creating a new user (every post is associated with a user). When sent a POST request, this endpoint creates a new user from the form data.
• http://localhost:5000/login: When sent a GET request, this returns a page that displays a form for logging in. When sent a POST request, this endpoint logs the user in and sets a cookie for the session.
• http://localhost:5000/logout: This endpoint logs the user out. This endpoint only accepts POST requests.