# smartdata

smartdata is a ODM that adheres to TypeScript practices and uses classes to organize data.
It uses MongoDB as persistent storage.

## Intention
There are many ODMs out there, however when we searched for a ODM that uses TypeScript,
acts smart while still embracing an easy the NoSQL idea we didn't find a matching solution.
This is why we started smartdata

How MongoDB terms map to smartdata classes

MongoDB term | smartdata class
--- | ---
Database | smartdata.Db
Collection | smartdata.DbCollection
Document | smartdata.DbDoc

### class Db
represents a Database. Naturally it has .connect() etc. methods on it.
Since it is a class you can have multiple DBs defined.
```typescript
import * as smartdata from 'smartdata'

let myDb1 = new smartdata.Db('someConnectionUrl')
let myDb2 = new smartdata.Db('someConnectionUrl')

myDb1.connect()
myDb2.connect()

// continues in next block... 
```

### class DbCollection
represents a collection of objects.
A collection is defined by the object class (that is extending smartdata.dbdoc) it respresents

So to get to get access to a specific collection you document
```typescript
// continues from the block before...

class myObject extends smartdata.DbDoc { // read the next block about DbDoc
    property1:string
    property2:number
    constructor(optionsArg:{
        queryArg?:any,
        dataArg?:{
            property1:string,
            property2:number
        }
    }) {
        super(this,optionsArg)
    }
} 
let myCollection = myDb1.getCollection(myObject)
``` 

> Alert: You NEVER instantiate a collection.
This is done for you!!!

### class DbDoc
represents a individual document in a collection
and thereby is ideally suited to extend the class you want to actually store.

DbDoc extends your class with .save() and saveDeep() methods.

So now we can get store instances of classes to Db...
How do we get a new class instances from a Doc in DB?
Easy! Take a look at the constructor. When you specify `optionsArg.queryArg`
smartdata will fill in the data from the database!
But when you specify a `optionsArg.dataArg` instead
the data is for the class is taken from there :)

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