django-usda-mongo

Overview

django-usda-mongo imports and maps the USDA National Nutrient Database for Standard Reference (SR22) to Django models using MongoDB with mongoengine. It also integrate django-mongonaut to admin the MongoDB database.

Requirements

• Python 2.5.x
• Django 1.2.x (import_sr22 will not work with early versions)
• mongoengine
• django-mongonaut

Installation

1. pip install django-usda-mongo or copy the usda_mongo folder to a location available on your PYTHONPATH.
2. Add 'usda' to INSTALLED_APPS in settings.py
3. Optionally, add (r'^usda/', include('usda.urls')), to your urlpatterns.

Data Import

To import the latest SR22 data. Simply use the import_sr22 management command as follows:

./manage.py import_sr22

The above assumes that the sr22.zip file is in the current folder. To specify an alternative location specify -f <filename>.

The import_sr22 command takes several options:

• --database <dbname> -- Specify an alternative database to populate.
• --food -- Create/update all foods.
• --group -- Create/Update food groups.
• --nutrient -- Create/Update nutrients.
• --weight -- Create/Update weights.
• --footnote -- Create/Update footnotes.
• --datasource -- Create/Update data sources.
• --derivation -- Create/Update data derivations.
• --source -- Create/Update sources.
• --data -- Create/Update nutrient data.'
• --all -- Create/Update all data.

All of the above options can be combined to only create/update the desired data. If no options are specified, -all is assumed.

Also note that all data is loaded in a single transaction to ensure that database consistency is maintained.

Notes

The USDA National Nutrient Database for Standard Reference (SR22) can be found here: http://www.ars.usda.gov/Services/docs.htm?docid=18879.