jQuery Class Example. Originally written for Holden Outerwear 2011 site.

gistfile1.js

/*
upcModel used to get upc when provided fabric, colorway, and size
invModel used to get the regions and retailers carring the given upc
*/


  /*            __               
 /\ \          /\ \__            
 \_\ \     __  \ \ ,_\    __     
 /'_` \  /'__`\ \ \ \/  /'__`\   
/\ \L\ \/\ \L\.\_\ \ \_/\ \L\.\_ 
\ \___,_\ \__/.\_\\ \__\ \__/.\_\
 \/__,_ /\/__/\/_/ \/__/\/__/\/*/

/* model will be fed a  fabric, colorway, and a size, and return it's associated UPC code
   to be used with P2P dynamic inventory across global retailers
   this will be handy for the ajax when users change colorways and sizes */



/*var upcModel = [
  // every fabric
	new FabricDTO('11220',
		[
			// holds one or more colorways
			new ColorwayDTO( 'flint-black', [ 
				// which hold one or more UPCs
				new UPCDTO('693373041956', 'xs') 
			] )
		]
	) 
	//, more new FabricDTO()...
];*/

/* haven't decided if this will be intially rendered in the markup, or if it will be loaded with ajax, 
   but either way...
   
*/
/* a cron job will generate a file for each product contains this JSON object
   ex: /api/p2p/upc-retailers/13.js 
   
    CRON JOB:
     - twice a day, hits upc-xml.xml file
     - for every product, creates an invModel data object and saves to file
     - the file will eseentially be created by loading the existing upc xml files associated with that product and creating a new UPC object as seen below
    NOTE: It may seem odd seperating the "get upc" data above from the "get retailers" logic from below but it makes sense because:
     - the "get retailers" data relies on a cron job and third party feeds, it may fail so i think it makes sense to not combine reliable and unreliable data
     - rendering out the JSON for the products as individual files on the server makes for a more reusable API 
*/
/*var invModel = [
	new UPC('693373041956', [
		new Region('us', [
			new Retailer('exitrealworld', "http://upc.tactics.com/holden/10203040")
		])
	])
];*/

                      /*          ___      
                     /\ \        /\_ \     
  ___ ___     ___    \_\ \     __\//\ \    
/' __` __`\  / __`\  /'_` \  /'__`\\ \ \   
/\ \/\ \/\ \/\ \L\ \/\ \L\ \/\  __/ \_\ \_ 
\ \_\ \_\ \_\ \____/\ \___,_\ \____\/\____\
 \/_/\/_/\/_/\/___/  \/__,_ /\/____/\/___*/

/* provided the current fabric, colorway,and size
   returns the associated UPC barcode 
   NOTE: rewritten to be more verbose using custom class methods */

function getUPC(_alias, _colorway, _size) {
	var l = upcModel.length;
	for(var i = 0; i < l; i++) {
		var _f = upcModel[i];
		// fabric found, search for the UPCDTO
		if(_f.alias == _alias) try { return _f.getColorway(_colorway).getUPC(_size).upc || null } catch(e) {};
	}
	
	// nothing found
	return null;
}

function getFabric(_fabric) {
	var l = upcModel.length;
	for(var i = 0; i < l; i++) {
		var _f = upcModel[i];
		// fabric found, search for the UPCDTO
		if(_f.alias == _fabric) return _f;
	}
	
	// nothing found
	return null;
}

function getUPCDTO(_upc) {
	var l = upcModel.length;
	for(var i = 0; i < l; i++) {
		var _f = upcModel[i];
		var _pc = _f.getUPC(_upc) || null;
		if(_pc) return _pc;
	}
	
	// nothing found
	return null;
}

/* provided a upc code, returns the JSON object containing the p2p retailer inventory for that item */
function getUPCInv(_upc) {
	var l = invModel.length;
	//console.log('getUPCInv: ' + l);
	for(var i = 0; i < l; i++) {
		var _u = invModel[i];
		//console.log(_u.upc);
		if(_u.upc == _upc) return _u;
	}
	return null;
}

function getUPCPrice(_upc) {
	var l = priceData.length;
	for(var i = 0; i < l; i++) {
		var _upcPrice = priceData[i];
		if(_upcPrice.upc == _upc) return _upcPrice.price;
	}
	return null;
}


      /*_                                             
     /\_ \                                            
  ___\//\ \      __      ____    ____     __    ____  
 /'___\\ \ \   /'__`\   /',__\  /',__\  /'__`\ /',__\ 
/\ \__/ \_\ \_/\ \L\.\_/\__, `\/\__, `\/\  __//\__, `\
\ \____\/\____\ \__/.\_\/\____/\/\____/\ \____\/\____/
 \/____/\/____/\/__/\/_/\/___/  \/___/  \/____/\/__*/ 

// FabricDTO class, holds a style number and one or more colorways
var FabricDTO = function(_alias, _colorways) {
	this.alias = _alias;
	this.colorways = _colorways;
}

$.extend(FabricDTO.prototype,{
	// provided a colorway name, returns the associated ColorwayDTO
	getColorway:function(_colorway) {
		var _colorways = this.colorways;
		var l = _colorways.length;
		for(var i = 0; i < l; i++) {
			var _c = _colorways[i];
			if(_c.name == _colorway) return _c;
		}
		return null;
	},
	getUPC:function(_upc) {
		var _colorways = this.colorways;
		var l = _colorways.length;
		for(var i = 0; i < l; i++) {
			var _c = _colorways[i];
			var _pc = _c.getUPCByUPC(_upc) || null;
			if(_pc) return _pc;
		}
		return null;
	},
	toString:function() {
		return "alias: " + this.alias + " colorways: " + this.colorways;
	}
});

// ColorwayDTO class, holds a name and one or more UPCDTO objects
var ColorwayDTO = function(_name, _upcs) {
	this.name = _name;
	this.upcs = _upcs;
}

$.extend(ColorwayDTO.prototype,{
	// provided a size, returns the associated UPC barcode
	getUPC:function(_size) {
		var _upcs = this.upcs;
		var l = _upcs.length;
		for(var i = 0; i < l; i++) {
			var _u = _upcs[i];
			if(_u.size == _size) return _u;
		}
		return null; 
	},
	getUPCByUPC:function(_upc) {
		var _upcs = this.upcs;
		var l = _upcs.length;
		for(var i = 0; i < l; i++) {
			var _u = _upcs[i];
			if(_u.upc == _upc) return _u;
		}
		return null; 
	},
	toString:function() {
		return "name: " + this.name + " upcs: " + this.upcs;
	}
});

// UPCDTO class, holds a upc code and a size
var UPCDTO = function(_upc, _shopId, _size) {
	this.upc = _upc;
	this.shopId = _shopId;
	this.size = _size;
}

$.extend(UPCDTO.prototype,{
	toString:function() {
		return "upc: " + this.upc + " shopId: " + this.shopId + " size: " + this.size;
	}
});

// UPCDTO class, holds a upc code and a size
var UPCInv = function(_upc, _regions) {
	this.upc = _upc;
	this.regions = _regions;
}

$.extend(UPCInv.prototype,{
	toString:function() {
		var _s = "\n\nupc: " + this.upc + "\n";
		var l = this.regions.length;
		for(var i = 0; i < l; i++) {
			var _r = this.regions[i];
			_s += "\nregion: " + _r.alias;
			var k = _r.retailers.length;
			for(var j = 0; j < k; j++) {
				var _ret =  _r.retailers[i];
				if(_ret) _s += "\nretailer: " + _ret.id + " " + _ret.link;
			}
		}
		return _s;
	},
	getRetailers:function() {
		var _stores = new Array();
		var l = this.regions.length;
		for(var i = 0; i < l; i++) {
			var _region = this.regions[i];
			var k = _region.retailers.length;
			for(var j = 0; j < k; j++) {
				_stores.push(_region.retailers[j]);
			}
		}
		return _stores;
	},
	getRetailersClasses:function(_prefix, _storePrefix) {
		var _a = new Array();
		var _stores = this.getRetailers();
		var l = _stores.length;
		for(var i = 0; i < l; i++) {
			_a.push(_prefix + _stores[i].id);
		}
		return _a.join(',');
	}
});


// UPCDTO class, holds a upc code and a size
var Region = function(_alias, _retailers) {
	this.alias = _alias;
	this.retailers = _retailers;
}

$.extend(Region.prototype,{
	toString:function() {
		return "";
		//return "upc: " + this.upc + " size: " + this.size;
	}
});

// UPCDTO class, holds a upc code and a size
var Retailer = function(_id, _link) {
	this.id = _id;
	this.link = _link;
}

$.extend(Retailer.prototype,{
	toString:function() {
		return "";
		//return "upc: " + this.upc + " size: " + this.size;
	}
});

// UPCPrice class, holds a upc code and a price
var UPCPrice = function(_upc, _price) {
	this.upc = _upc;
	this.price = _price;
}

$.extend(UPCPrice.prototype,{
	toString:function() {
		return "";
		//return "upc: " + this.upc + " size: " + this.size;
	}
});