jQuery EZStorage

jQuery EZStorage is a plugin that simplifies access to HTML5 storages & cookies. The plugin handles determining where and how to store and retrieve data; in HTML5 Storage if it is available, or defaults to cookies.

Functionalities:

• Store data easily, encode/decode it with JSON automatically.
• Automatcially handles conversion of Number and String to Date for expiration values.
• [jquery.cookie][1] and [JSON][2] should be included directly to avoid complications with browsers and data transfer. [1]: https://raw.github.com/carhartl/jquery-cookie/master/jquery.cookie.js [2]: http://cdnjs.cloudflare.com/ajax/libs/json2/20110223/json2.js

Usage

$.ezstorage(action, key, value, options)

overloaded function to manage 'storage'

• checks if local/session Storage is implemented in the browser
• checks if cookies are enabled
• get/set key:value pairs (in Storage or as a cookie)
• removes key:value pairs (in Storage or as a cookie)

@param String action

• the action to perform: - 'enabled' = verify that a storage option is possible - 'get' = get a value from storage; returns null, Scalar, Object - 'set' = set a key:value pair; value converted to JSON String if Object - 'remove' = delete a key:value pair

@param String key

• the key to store; n/a with enabled

@param Mixed value

• the value to store; n/a with get or remove

@param Object options

• options for setting the key:value; Optional - n/a with enabled
• if using HTMLStorage 'value' converted to an Object; value.expires = expireDate, etc.
• during 'get', check is made for expired; null returned if expired
• if expires omitted, sessionStorage used
• Object:
  • expires: Date object (preferred), Numeric number of days, or parseable date String
  • persist: Boolean; whether to place value in localStorage despite expires being set
  • path: String; only used if cookie,
  • full: Boolean; whether to return the full object stored by ezstorage or just value

@return Mixed

• 'enabled' = Boolean
• 'get' = null or stored value; will be Object if Scalar set with an expires
• 'set' = stored value;
• 'remove' = always True, if not a javascript error occured.

$.ezstorage.enabled();

get(key, options = {})

Get an item from a storage. Searches localStorage, sessionStorage, and cookies.

$.ezstorage.get('foo');
$.ezstorage.get('foo', {full:true}); // return {ezstorage:true …} not just 'value'

set(key, value, options = {})

Set an item in a storage. If options.expire or options.persist are set value is stored in localStorage, else sessionStorage/cookie.

• value is stored as an object: {ezstorage:true, <options>, value:<value>}

  $.ezstorage.set('foo', 'value'); $.ezstorage.set('foo', 'value', {expires:3}); $.ezstorage.set('foo', 'value', {persist:true});

remove(key, options = {})

Delete an item from all storages (local, session, and cookie). Options only used if being stored as a cookie.

storage.remove('foo');

 $.ezstorage.defaultSettings(); // return settings to {ezstorage: true, path:'/'};
 $.ezstorage.settings = {<your settings>}; // no longer need to pass in function

JQuery EZStroage is compatible with all browsers that support (and have enabled) storage/cookies.