just-json

Root object props & methods

``js
DB = {
schemas: {
// ...listing of schemas
},
config(opts) {
// GET or SET database configs
let opts = {
path: 'stores/db',
schema: './_schemas.json'
}
},
select(collection, schema),
removeCollection(name),
emptyCollection(name),
reset()
}
`

Collection methods

* add(item) — add record to collection
* save(item) — alias for add method
* get(id, fields) — retrieve record from collection
* update(id, data) — update record with [id]
* remove(id) — remove record with [id]
* sync(data) — synchronize/replace data in current collection
* count() — get count of records in current collection
* find() — Promise-based method .find().run().then() with finder model. Search methods see bellow.

Finder methods

* equals(key, val)
* notEqual(key, val)
* gt(key, val)
* gte(key, val)
* lt(key, val)
* lte(key, val)
* matches(key, reg)
* paginate(count, sort)
* one()
* run()

Usage example

_schemas.json
`json
{
"currencies": {
"title": "Валюты",
"fields": [
"tag|text|Тег",
"name|text|Название"
]
},
"currates": {
"title": "Ставки валют",
"fields": [
"currency|select|Валюта",
"rate|text|Ставка",
"created_at|date|Дата"
],
"dependencies": {
"currency": "currencies:tag,name"
}
}
}
`

app.js
`js
const DB = require('just-json')

DB.configure({
path: 'stores/db',
schema: __dirname + '/_schemas.json'
});

// add collection
var Movie = DB.select('tosters');

// add item into "Movie" collection
let key = Movie.add({
type: 'movie',
title: 'The Godfather',
director: 'Francis Ford Coppola',
writer: 'Mario Puzo',
imdb: 9.2
});


let mov = Movie.get(key); // return value of [_id] field
console.log('\n\n', mov);
Movie.remove(key); // remove item

mov = Movie.get(key); // try to get again
console.log('\n\n', mov); // return -> null

// add a record again
let key = Movie.add({
type: 'movie',
title: 'The Godfather',
director: 'Francis Ford Coppola',
writer: 'Mario Puzo',
imdb: 9.2
});

console.log('\n\nCount is', Movie.count()); // -> 1

// test find method
Movie.find()
.matches('title', /he/i)
.matches('type', /movie/i)
.paginate(2)
.run()
.then( results => {
console.log('\n\nFind results', results);
});
``