backbone.js - override get method in Alloy model -


i'm trying override get: calls in alloy model, similar backbone, wrote doesn't work

extendmodel: function(model) {               _.extend(model.prototype, {             // extended functions , properties go here             get: function (attr) {                 if (attr=='image')                 {                     return ti.utils.base64decode(this['image'])                 }                      return this[attr];               }         });          return model;     },

here how overriding set , add methods hope helps you:

exports.definition = {     config: {          adapter: {             type: "properties",             collection_name: "carecenter",             idattribute : "carecenterid"         }     },           extendmodel: function(model) {               _.extend(model.prototype, {             idattribute : "carecenterid"             // extended functions , properties go here         });          return model;     },     extendcollection: function(collection) {                 _.extend(collection.prototype, {             add : function(attrs, opts){                 var isduplicated = false;                 if(attrs && attrs.get){                     isduplicated = this.any(function(model){                         return model.get("carecenterid") === attrs.get("carecenterid");                     });                 }                 if(isduplicated){                     return false;                 } else {                     backbone.collection.prototype.add.call(this, attrs, opts);                 }             },             comparator : function(model){                 return -model.get("state");             }         });          return collection;     } }   extendmodel: function(model) {               _.extend(model.prototype, {             idattribute : "recipientid",             set : function(attrs, opts){                 if(attrs.age != null){                     var age = attrs.age;                     var result = "";                     if(age <= alloy.cfg.infant){                         result = "infant";                     } else if(age <= alloy.cfg.child){                         result = "child";                     } else if(age <= alloy.cfg.teenager){                         result = "teenager";                     } else {                         result = "adult";                     }                     attrs.group = result;                 }                  return backbone.model.prototype.set.call(this, attrs, opts);             }         });          return model;     },

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