#IDBConnection.js

IDBConnection.js is is a wrapper for IndexedDB to make it easier to work against. The library work in a OOP way and emmit events for all operations.

#Usage

Add a reference to IDBConnection.js in your application before you want to use IndexedDB:

<script src='/js/IDBConnection.js'></script>

Once you have the script included you can then open connections to each different database within your application simply by instantiating an object of the class IDBConnection:

var iDBConnection= new IDBConnection();

iDBConnection.open("testDB", 1, {
    name: "customers",
    key: {
        keyPath: 'id', 
        autoIncrement: true,
    },
    indexes: [{
        name: "firstName", 
        keyPath: "firstName", 
        unique: false
    }, {
        name: "lastName", 
        keyPath: "lastName", 
        unique: false
    }, {
        name: "age", 
        keyPath: "age", 
        unique: false
    }]
});

###Adding items

To add a object to the database, simply call to add method with the table name how first parameter and the object how second parameter. A onAdd event is fired when the object is stored or a error happen.

iDBConnection.add("customers", {
    firstName: 'John',
    lastName: 'Doe',
    age: 21
});

iDBConnection.onAdd = function (customer, error) {
    if (error) {
        alert(error);
    }

    alert("The customer " + JSON.stringify(customer) + " was added.");
}

###Retrieving items

To get a record from the database, simply call the get method with the table name how first parameter and the keyPath to search how second parameter. A onGet event is fired with the result or the error. name: document.querySelector("#name").value, lastname: document.querySelector("#lastname").value, age: document.querySelector("#age").value });

```JavaScript
iDBConnection.get("customers", 1);

iDBConnection.onGet = function (result, error) {
    alert(JSON.stringify(result));
};

###Deleting items

To delete a record simply call to the method delete with the table name how first parameter and the keyPath of the record to delete how second parameter. a onDelete event is fired with the keyPath deleted or the error is a error happen.

iDBConnection.delete("customers", 1);

iDBConnection.onDelete = function (key, error) {
    alert("The customer with id " + key + " was deleted");
};

###Querying items

var iDBIndexQuery = iDBConnection
    .query("customers", "optionalIndex")
    .filter("lastname", "John")
    .only("name", "John")
    .execute();

iDBIndexQuery.onQuery = function (result) {
    var index;

    for (index in result) {
        // get the data of each item result[index]
    }
};