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debounce push localStorage #138

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debounce push localStorage #138

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2dd3b35
test
Leooo Nov 13, 2015
23d2782
debounce push LS
Leooo Nov 13, 2015
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59 changes: 50 additions & 9 deletions localstorage_adapter.js
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Original file line number Diff line number Diff line change
Expand Up @@ -120,6 +120,11 @@

DS.LSAdapter = DS.Adapter.extend(Ember.Evented, {

_storage: null,//where the copy of the data of localStorage will be stored
useSnapshot: true,//set to false if ever anyone would like to come back to previous behavior
timeOutSnapshot: 200,//play with the parameter, shorter time = performance decreased, higher value=risk of losing data when reloading the page
_hasChanged: false,//flag to detect pushed data,

/**
* This governs if promises will be resolved immeadiatly for `findAll`
* requests or if they will wait for the store requests to finish. This matches
Expand Down Expand Up @@ -192,6 +197,9 @@
if (opts && typeof opts.allowRecursive !== 'undefined') {
allowRecursive = opts.allowRecursive;
}
if (allowRecursive) {
Ember.beginPropertyChanges();
}

for (var i = 0; i < ids.length; i++) {
record = namespace.records[ids[i]];
Expand All @@ -204,6 +212,9 @@
if (results.get('length') && allowRecursive) {
return this.loadRelationshipsForMany(store, type, results);
} else {
if (allowRecursive) {
Ember.endPropertyChanges();
}
return Ember.RSVP.resolve(results);
}
},
Expand Down Expand Up @@ -308,18 +319,48 @@
return this.get('namespace') || 'DS.LSAdapter';
},

loadData: function () {
var storage = this.getLocalStorage().getItem(this.adapterNamespace());
return storage ? JSON.parse(storage) : {};
loadData: function () {
var storage,arr,arr_cp;
if (!this._storage||!this.useSnapshot) {
storage = this.getLocalStorage().getItem(this.adapterNamespace());
arr = storage ? JSON.parse(storage) : {};
if (this.useSnapshot) {
this._storage=arr;
}
}
else {
arr=this._storage;
}
var cp=Ember.copy(arr,true);
return cp;
},

persistData: function(type, data) {
var modelNamespace = this.modelNamespace(type);
var localStorageData = this.loadData();

localStorageData[modelNamespace] = data;
timerPushLocalStorage: null,
_launchPushLocalStorage: function() {
if (this.get('_hasChanged')) {
Ember.run.debounce(this,'_pushLocalStorage',this.timeoutSnapshot);
}
}.observes('_hasChanged'),
_pushLocalStorage: function() {
if (!this.useSnapshot || !this._storage) {return false;}
if (this.get('_hasChanged')) {
this.getLocalStorage().setItem(this.adapterNamespace(), JSON.stringify(this._storage));
this.set('_hasChanged',false);
}
},

this.getLocalStorage().setItem(this.adapterNamespace(), JSON.stringify(localStorageData));
persistData: function(modelClass, data) {
var modelNamespace = this.modelNamespace(modelClass);
if (this.useSnapshot) {
if (!this._storage) {this._storage=this.loadData();}
this._storage[modelNamespace] = Ember.copy(data);
this.set('_hasChanged',true);
}
else {
var localStorageData = this.loadData();
localStorageData[modelNamespace] = data;
this.getLocalStorage().setItem(this.adapterNamespace(), JSON.stringify(localStorageData));
}
},

getLocalStorage: function() {
Expand Down