calendar-db v1.2.1

calendar-db

store and query recurring and one-time events

example

add

var level = require('level')
var db = level('/tmp/cal.db')
var calendar = require('calendar-db')

var cal = calendar(db)
var time = process.argv[2]
var opts = {
  value: { title: process.argv[3] }
}
cal.add(time, opts, function (err, id) {
  if (err) console.error(err)
  else console.log(id)
})

$ date
Mon May 23 16:09:11 CEST 2016
$ node add.js 'every thursday' 'javascript study group'
4e9007c81c2c50ee373c9d69c94259ad
$ node add.js 'tuesday may 24th' 'open hack'
6538b3a92859e99267ad45b15ae6ab1d

range

var level = require('level')
var db = level('/tmp/cal.db')

var minimist = require('minimist')
var argv = minimist(process.argv.slice(2))

var calendar = require('calendar-db')
var cal = calendar(db)

cal.query(argv, function (err, results) {
  if (err) return console.error(err)
  results.forEach(function (r) { console.log(r) })
})

$ node range.js --gt 2016-05-01 --lt 2016-06-01
{ key: '4e9007c81c2c50ee373c9d69c94259ad',
  time: Thu May 05 2016 00:00:00 GMT+0200 (CEST),
  value: { title: 'javascript study group' } }
{ key: '4e9007c81c2c50ee373c9d69c94259ad',
  time: Thu May 12 2016 00:00:00 GMT+0200 (CEST),
  value: { title: 'javascript study group' } }
{ key: '4e9007c81c2c50ee373c9d69c94259ad',
  time: Thu May 19 2016 00:00:00 GMT+0200 (CEST),
  value: { title: 'javascript study group' } }
{ key: '6538b3a92859e99267ad45b15ae6ab1d',
  time: Tue May 24 2016 00:00:00 GMT+0200 (CEST),
  value: { title: 'open hack' } }
{ key: '4e9007c81c2c50ee373c9d69c94259ad',
  time: Thu May 26 2016 00:00:00 GMT+0200 (CEST),
  value: { title: 'javascript study group' } }

api

var calendar = require('calendar-db')

var cal = calendar(db)

Create a new calendar instance cal from a leveldb instance db.

cal.add(time, opts, cb)

Add an event given by a free-form string time which is parsed by parse-messy-schedule. Optionally:

• opts.created - parse relative to this time
• opts.value - a value to store alongside the time

cb(err, id) fires with the event id.

var stream = cal.query(opts, cb)

Return a readable stream of all events between opts.gt and opts.lt, including all instances of recurring events.

If cb is given, cb(err, results) fires with an array of all the results.

cal.get(id, cb)

Read a document by its id. cb(err, doc) fires with the doc:

• doc.time - time string
• doc.value - supplementary value
• doc.created - time string parsed relative to this time

cal.remove(id, cb)

Remove a document by its id.

cal.prepare(time, opts, cb)

Like add, but do not write to the database. Instead, prepare() returns an object res that you can use to batch insert into the database yourself:

• res.id - id of the event
• res.batch - array of documents to batch insert into the database

Optionally specify:

• opts.created - parse relative to this time
• opts.value - a value to store alongside the time
• opts.type - 'put' (default) or 'del'

The batch data is more useful if you wish to insert additional documents atomically along with the event data.

install

npm install calendar-db

license

BSD