Haiti

Spreadsheet Importer

We have access to a lot of relatively unstructured data in Spreadsheets which we need to import into Sahana. Currently this is done via a laborious Data Entry process.

We really need to be able to do Bulk Imports.

Example Data sources:

• ​http://spreadsheets.google.com/ccc?key=0Aq_3OYelM4ZUdHJyc0lUekZLUmEwa3ZSU2dJS3YyWWc&hl=en_GB (Data Entry tab)
  • The OCHA contacts list is a task we need to do regularly, so need to be able to handle duplicates effectively. We can influence them to standardise their format to make it easier.

Options:

CSV Import

Here is a process that works, although is a bit cumbersome, so we should look to automate as much as possible & improve:

1. Get a spreadsheet of good Data together (e.g. using Google Docs)
2. Save as CSV
3. Open in Open Office (MS Excel destroys data - do NOT use!)
4. Export copies of the tables you wish to import to in CSV format, e.g.:
   • /gis/location.csv
   • /hms/hospital.csv
5. Plan how you are going to deal with duplicates between these datasets.
   • e.g. copy exported data into Spreadsheet & then clear table: db.module_resource.truncate()
6. Plan the order of imports:
   • Need to import referenced tables before those which refer to them, e.g.:
     • pr_person, gis_location, or_organisation, or_office, or_contact
7. Copy the data from the datasheet into the one with the column headers
   • NB All column headers need to be present, named correctly, in the correct order
   • No blank rows in the sheet
8. Upload the file to the server: /home/haiti/web2py
9. Do a Test Import on Dev
   • Check that data looks good
10. Repeat on Prod:

    vim /etc/crontab
    #0-59/1 * * * * www-data cd /home/haiti/web2py/ && python web2py.py -C -D 1 >> /tmp/cron.output 2>&1
    vim /home/haiti/prod/models/00_db.py
     migrate=True
    rm /etc/apache2/sites-enabled/prod-ssl
    /etc/init.d/apache2 force-reload
    /home/haiti/update-prod
    /home/haiti/shell-prod
    db(db.gis_location.id>0).select().last().id
    db.gis_location.import_from_csv_file(open('hospital_locations.csv','rb'))
    rows = db(db.gis_location.id>0).select()
    for row in rows:
        if row.lon and row.lat and not row.wkt:
            db.gis_location[row.id] = dict(wkt = 'POINT(%f %f)' % (row.lon, row.lat))
        if not row.deleted:
            db.gis_location[row.id] = dict(deleted = False)
        if not row.created_on:
            db.gis_location[row.id] = dict(created_on = request.utcnow)
        if not row.modified_on:
            db.gis_location[row.id] = dict(modified_on = request.utcnow)
    
    db.commit()
    Ctrl+D
    Set the initial ID in import sheet to be the last+1 & then continue on
    /home/haiti/shell-prod
    db.hms_hospital.import_from_csv_file(open('hospitals_import.csv','rb'))
    rows = db(db.hms_hospital.id>0).select()
    for row in rows:
        if not row.deleted:
            db.hms_hospital[row.id] = dict(deleted = False)
        if not row.created_on:
            db.hms_hospital[row.id] = dict(created_on = request.utcnow)
        if not row.modified_on:
            db.hms_hospital[row.id] = dict(modified_on = request.utcnow)
    
    db.commit()
    Ctrl+D
    ln -s /etc/apache2/sites-available/prod-ssl /etc/apache2/sites-enabled
    /etc/init.d/apache2 force-reload
    vim /home/haiti/prod/models/00_db.py
     migrate=False
    vim /etc/crontab
    0-59/1 * * * * www-data cd /home/haiti/web2py/ && python web2py.py -C -D 1 >> /tmp/cron.output 2>&1
    

ToDo

• Do data-de-duplication
  • hook into the Model's validators
• Provide a Controller to allow web-based access at: /admin/import_data (The current implementation broke at some point)
• Use functions imported from a new modules/s3gis.py for the WKT-creation

Google Spreadsheets API

• ​http://code.google.com/apis/spreadsheets/

Excel

• ​http://pypi.python.org/pypi/xlrd xlrd]
  • Example Code - not the cleanest

Other

• ​Resolver One

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Haiti