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/* | |
* | |
* | |
* | |
* WILL BE MOVED SOON | |
* USE THIS => https://github.com/renie/CacheRequest | |
* | |
* | |
* | |
* | |
* | |
*/ | |
var CachedRequestHelper = { | |
storageKeys : { | |
timeout : 'TIMEOUT', | |
lastcall : 'LASTCALL', | |
response : 'RESPONSE' | |
}, | |
defaultTimeout : 300000, // 5 minutos | |
send : function(options) { | |
this.__prepareVariables(options); | |
let valid = this.__isValid(); | |
if (valid) | |
this.__callCachedCallback(); | |
else | |
this.__doRequest(); | |
this.d.promise(); | |
}, | |
__prepareVariables : function(options) { | |
this.opt = options; | |
this.d = new $.Deferred(); | |
this.__createHash(); | |
this.__getStored(); | |
}, | |
__createHash : function() { | |
this.hash = this.opt.url + '' + (this.opt.data || '') + (this.opt.method || '-ANY'); | |
}, | |
__getStored : function() { | |
this.stored = localStorage.getItem(this.hash); | |
this.stored = JSON.parse(this.stored) || null; | |
}, | |
__isValid : function() { | |
if (!this.stored) | |
return false; | |
let to = this.stored[this.storageKeys.timeout], | |
lc = this.stored[this.storageKeys.lastcall]; | |
return (Date.now() - lc) < to; | |
}, | |
__callCachedCallback : function() { | |
if (this.opt.hasOwnProperty('success')) | |
this.opt.success.call(this.opt.context, null, 'CACHED', this.stored[this.storageKeys.response]); | |
else if (this.opt.hasOwnProperty('complete')) | |
this.opt.complete(this.opt.context, 'CACHED', this.stored[this.storageKeys.response]); | |
this.d.resolve(); | |
}, | |
__doRequest: function() { | |
this.originalSettings = { | |
's' : this.opt.success, | |
'f' : this.opt.error, | |
'c' : this.opt.complete, | |
'ctx' : this.opt.context | |
}; | |
this.opt.success = this.__successCallback; | |
this.opt.error = this.__errorCallback; | |
this.opt.complete = this.__completeCallback; | |
this.opt.context = this; | |
$.ajax(this.opt); | |
}, | |
__successCallback : function(data, status, res) { | |
this.__cacheRequest(res); | |
if (this.originalSettings.s) | |
this.originalSettings.s.call(this.originalSettings.ctx, data, status, res); | |
else if (this.originalSettings.c) | |
this.originalSettings.c.call(this.originalSettings.ctx, res, status); | |
this.d.resolve(); | |
}, | |
__errorCallback : function(res, status, err) { | |
if (this.opt.useOldIfError && this.stored) | |
res = this.stored[this.storageKeys.response]; | |
if (this.originalSettings.e) | |
this.originalSettings.call(this.originalSettings.ctx, res, status, err); | |
this.d.resolve(); | |
}, | |
__completeCallback : function(res, status) { | |
if(res.status === 0 && status === 'error') { | |
if (this.opt.useOldIfError && this.stored) | |
res = this.stored[this.storageKeys.response]; | |
else | |
res = null; | |
} | |
if (this.originalSettings.c) | |
this.originalSettings.c.call(this.originalSettings.ctx, res, status); | |
else | |
console.error('No "complete" callback, no connection and no cache available (or you don\'t want it).'); | |
this.d.resolve(); | |
}, | |
__cacheRequest : function(res) { | |
let data = {}; | |
data[this.storageKeys.timeout] = this.opt.cacheTimeout || this.defaultTimeout; | |
data[this.storageKeys.lastcall] = Date.now(); | |
data[this.storageKeys.response] = res; | |
localStorage.setItem(this.hash, JSON.stringify(data)); | |
} | |
}; | |
export default CachedRequestHelper; |
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