How to iterate over nested dictionaries in django templates

Question

I\'m not sure the most efficient way to iterate over my nested dictionaries to print a matrix of the total and good values for every fruit for each date. Take for instance

Answer 1

Really old question, but I will add my 1.5c.

This is a good use case of the regroup tag (https://docs.djangoproject.com/en/1.9/ref/templates/builtins/#regroup) and a bit of data refactoring:

1. Have your data as a simple list of data points:

   harvest_data = [
       {'fruits': 'apples', 'date': '2011-07-23', 'total': 100, 'good': 80},
       # ...
   ]
   

2. In your template, group by the chosen dimension(s):

   {% regroup harvest_data by fruits as data_by_fruits %}
   {% for data in data_by_fruits %}
       
   {{ data.grouper }}
      # 'apples'
       {% regroup data.list by date as data_by_fruits_date %}
       {% for data_1 in data_by_fruits_date %}
           
   {{ data_1.grouper }}
       # '2011-07-23'
           {% for datapoint in data_1.list %}
               total: {{ datapoint.total }} 
   
               good: {{ datapoint.good }} 
   
           {% endfor %}
       {% endfor %}
   {% endfor %}