Get nested dict items using Jinja2 in Flask
dictionary, flask, jinja2, python
Solution
I think you want to know how access the nested dict in template
If you think I got your question
Generally, This is the way to access the nested dictionary items in dictionary.
If the iterables are getting nested further just you have to increase the `forloop` depth level whether it is list or dict.
Here I am giving just a generic example in my own way for your understanding
Data:
parent_dict = {1: {'A':'val1','B':'val2'}, 2:{'C':'val3','D':'val4'}}
iteration in jinja2:
{% for key,parent_dict_item in parent_dict.items() %}
{% for key2, nested_value in parent_dict_item.items() %}
<li><a href = "{{ nested_value }}">{{ nested_value }}</a> </li>
{% endfor %}
{% endfor %}
Answer:
<li><a href="val1">val1</a> </li>
<li><a href="val2">val2</a> </li>
<li><a href="val3">val3</a> </li>
<li><a href="val4">val4</a> </li>
Problem
for this dictionary with this Flask controller ``` projects = { 'life-calc':{'url':'life-calc', 'title': 'Life Calculator'}, 'text-game':{'url':'text-game', 'title':'Text Adventure'}, 'fill-it-up':{'url':'fill-it-up', 'title':'Fill It Up'}, 'rock-paper-scissors':{'url':'rock-paper-scissors', 'title':'Rock, Paper, Scissors'}, 'bubble-popper':{'url':'bubble-popper', 'title':'Bubble Popper'} } @app.route('/') def index(): return render_template("index.html", projects = projects) ``` and the template as such ``` <h1> List of My Projects </h1> <ol> <li> <a href = "life-calc">Life Calculator</a> </li> <li> <a href = "text-game">Adventure Game</a> </li> <li> <a href = "fill-it-up">Fill It Up</a> </li> <li> <a href = "rock-paper-scissors">Rock Paper Scissors</a> </li> <li> <a href = "bubble-popper">Bubble Popper</a> </li> </ol> <p>test section below</p> <ol> {% for project in projects %} <li><a href = "{{ project['url'] }}">{{ project['title'] }}</a> </li> {% endfor %} </ol> {% endblock %} ``` How can I access the items in the dict to print a list of my projects as in the HTML above the test? I solved my own problem with help from Rendering a python dict in Jinja2 / Werkzeug The template block should be ``` {% for key, value in projects.iteritems() %} <li><a href={{value['url']}}>{{value['title']}}</a></li> {% endfor %} ``` But I'm still curious as to how to access further nested dictionaries, and if this is the smartest way to create a simple menu.