This code is part of a web application to analyze campaign finance data on
http://www.atomodo.com which is still being written.

There is a great set of data about who gives money to US political committees. 
It is maintained by the Federal Elections Commission and is free to
download from an ftp server at ftp://ftp.fec.gov .

Anyone wanting to do serious analysis on this data will face a couple of
challenges- it's pretty big data and the ids that you might expect to be able
to use are not always unique across years.

This script fetches files from the ftp server and efficiently loads the data
into a MySQL database. It uses unique, database generated, integer keys for
efficient joins.

There is an explanation of the tables and fields here:
http://www.fec.gov/finance/disclosure/ftpdet.shtml

The database this script creates modifies the data slightly to create unique
integer ids for candidates (the ca table) and committees (the cm table).

These ids are used instead of the ones supplied by the FEC for the
contribution tables (indiv, oth, and pas2). This is done so that multiple
years worth of data can be analyzed and a side effect is a slight savings
in the storage needed.

Before running the script, you should create a database using the
CREATE_FEC_DATABASE.sql script. Once the database is created, you'll need to
add a user with SELECT, INSERT, CREATE, and DROP permissions, then edit
src/atomodo/fecscraper/DBModel.groovy to update the connection string,
username and password on line 26. 
 
You should also update the email address on line 28 of
src/atomodo/fecscraper/FTPModel.groovy to your own.

To compile, you'll need: 

Groovy 1.6  			http://groovy.codehaus.org/Download
commons.net 3.0.1 		http://commons.apache.org/net/download_net.cgi
commons.compress 1.4.1	http://commons.apache.org/compress/download_compress.cgi
mysql connector 5.1 	http://www.mysql.com/downloads/connector/j/

Once you have everything working, you'll be able to query your fec database
for things like the top committees by total dollars:

SELECT 
	cn.`name` AS candidate
	, cm.`name` AS committe
	, cm.party
	, IFNULL(SUM(i.`transaction_amt`), 0) AS amt
FROM cm
LEFT OUTER JOIN cn ON cm.cn_id = cn.cn_id AND cn.y2 = cm.y2
LEFT OUTER JOIN indiv AS i ON i.cm_id = cm.id
WHERE cm.y2 = '12'
GROUP BY cn.`name`, cm.`name`, cm.party
ORDER BY amt DESC
LIMIT 100;

Or see what employers and occupations individual contributors have:

SELECT
	i.employer, i.occupation, COUNT(i.sub_id), sum(i.`transaction_amt`)
FROM indiv AS i
JOIN cm ON cm.id = i.cm_id
WHERE cm.y2 = '12'
GROUP BY i.occupation, i.employer
HAVING COUNT(i.sub_id) > 25
ORDER BY COUNT(i.sub_id) DESC;