Created
April 15, 2014 21:54
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tempus db index
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pg = require 'pg' | |
{dev} = require "#{__dirname}/../database" | |
devConfig = "postgres://#{dev.user}:#{dev.password}@localhost/#{dev.database}" | |
constring = process.env.HEROKU_POSTGRESQL_NAVY_URL or process.env.TRAVIS_DB_URL or devConfig | |
{EventEmitter} = require 'events' | |
Database = (callback) -> | |
pg.connect constring, callback | |
class Transaction extends EventEmitter | |
constructor: ()-> | |
Database (err, client, done) => | |
if err | |
@emit 'error', err | |
else | |
@client = client | |
@done = done | |
@begin() | |
begin: -> | |
@client.query 'BEGIN', (err)=> | |
if err | |
@emit 'error', err | |
else | |
@emit 'begin' | |
query: (statement, cb)-> | |
statement = if typeof statement.toQuery is 'function' then statement.toQuery() else statement | |
@client.query statement, (err, rows) => | |
if err | |
@rollback() | |
else | |
cb rows | |
rollback: () -> | |
@client.query 'ROLLBACK', (err) => | |
@done err | |
@emit 'rollback', err | |
commit: (obj)-> | |
@client.query 'COMMIT', (err) => | |
@done() | |
@emit 'commit', obj | |
module.exports = Database | |
module.exports.Transaction = Transaction |
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