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89 test after merge #107

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25 changes: 25 additions & 0 deletions README.md
Original file line number Diff line number Diff line change
Expand Up @@ -218,6 +218,31 @@ The value for `documentType` is the camelCase version of the primary model name.

For best results, only create/update records using the full model definition. Treat the others as read-only.

## Multiple databases for the same model

In some cases it might diserable (security related, where you want a given user to only have some informations stored on his computer) to have multiple databases for the same model of data.

`Ember-Pouch` allows you to dynamically change the database a model is using by calling the function `changeDb` on the adapter.

```javascript
function changeProjectDatabase(dbName, dbUser, dbPassword) {
// CouchDB is serving at http://localhost:5455
let remote = new PouchDB('http://localhost:5455/' + dbName);
// here we are using pouchdb-authentication for credential supports
remote.login( dbUser, dbPassword).then(
function (user) {
let db = new PouchDB(dbName)
db.sync(remote, {live:true, retry:true})
// grab the adapter, it can be any ember-pouch adapter.
let adapter = this.store.adapterFor('project');
// this is where we told the adapter to change the current database.
adapter.changeDb(db);
}
)
}
```


## Installation

* `git clone` this repository
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34 changes: 27 additions & 7 deletions addon/adapters/pouch.js
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Expand Up @@ -25,15 +25,35 @@ export default DS.RESTAdapter.extend({
// reloading redundant.
shouldReloadRecord: function () { return false; },
shouldBackgroundReloadRecord: function () { return false; },

_startChangesToStoreListener: on('init', function () {
this.changes = this.get('db').changes({
since: 'now',
live: true,
returnDocs: false
}).on('change', bind(this, 'onChange'));
_onInit : on('init', function() {
this._startChangesToStoreListener();
}),
_startChangesToStoreListener: function () {
var db = this.get('db');
if (db) {
this.changes = db.changes({
since: 'now',
live: true,
returnDocs: false
}).on('change', bind(this, 'onChange'));
}
},
changeDb: function(db) {
if (this.changes) {
this.changes.cancel();
}

var store = this.store;
var schema = this._schema || [];

for (var i = 0, len = schema.length; i < len; i++) {
store.unloadAll(schema[i].singular);
}

this._schema = null;
this.set('db', db);
this._startChangesToStoreListener();
},
onChange: function (change) {
// If relational_pouch isn't initialized yet, there can't be any records
// in the store to update.
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