intval3/lib/db/index.js

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'use strict'
const fs = require('fs')
const os = require('os')
const path = require('path')
const sqlite3 = require('sqlite3').verbose()
const squel = require('squel')
const DB_FILE = path.join(os.homedir(), '.intval3.db')
const db = new sqlite3.Database(DB_FILE)
class DB {
constructor () {
this._table = 'frames'
this.createTable()
}
createTable () {
const query = `CREATE TABLE
IF NOT EXISTS ${this._table} (
dir INTEGER,
exposure INTEGER,
start INTEGER,
stop INTEGER,
len INTEGER,
counter INTEGER,
sequence INTEGER
);`
db.run(query)
}
insert (obj) {
const query = squel.insert()
.into(this._table)
.setFields(obj) //dir, exposure, start, stop, len, counter
.toString()
db.run(query)
}
find (where, cb) {
const query = squel.select()
.from(this._table)
.where(where)
.toString()
db.all(query, cb)
}
list (cb) {
const query = squel.select()
.from(this._table)
.toString()
db.all(query, cb)
}
}
module.exports = new DB()