Veeva API helper library

veeva.js

// Veeva API helper library
// dependencies: async
// Brian Pfeil - 2012-03-01 - init
(function() {

    window.veeva = {

      getRandomFunctionName: function() {
    		var randomNumber = Math.floor(Math.random() * (new Date()).getTime());
    		var millisecondsSinceEpoch = (new Date().getTime());
    		var cbFnName = "veevacallback" + millisecondsSinceEpoch + '' + randomNumber;
    		return cbFnName;
    	},

    	getDataForObject: function(objectName, objectFieldName, cb) {
    	    if ( (navigator.userAgent.match(/iPad/i) != null) ) {
                
        		var cbFnName = this.getRandomFunctionName();
        		window[cbFnName] = function(result) {

                    // preprocess the result

                    // if the value is the same as the ObjectName.FieldName requested, then there was
                    // no value so set it to the empty string
                    if (result[objectName][objectFieldName] === (objectName + '.' + objectFieldName)) {
                        result[objectName][objectFieldName] = '';
                    }

                    // call the callback
                    cb(result);
                };
        		document.location = 'veeva:getDataForObject(' + objectName + '),fieldname(' + objectFieldName + '),' + cbFnName + '(result)';    	        
    	    } else {
        		var result = {};
    			result[objectName] = {};
    			result[objectName][objectFieldName] = objectName + '.' + objectFieldName;
    			cb(result);    	        
    	    }

    	},

    	// get a set of field values for a single object
    	getDataElementsForObject: function(objectName, objectFieldNames, cb) {
    		var that = this;
    		var fns = [];
    		$.each(objectFieldNames, function(i, fieldName) {
    		    
    		    fns.push(
        		    function(callback) {
            		    that.getDataForObject(objectName, fieldName, function(result) {
                            callback(null, {objectName: objectName, fieldName: fieldName, result: result});
            		    });    		        
        		    }    		        
    		    );
    		    
    		});
    		
    		var obj = {}
    		async.series(fns, function(err, results) {
    		    
    		    $.each(results, function(i, result) {
    		        obj[result.fieldName] = result.result[result.objectName][result.fieldName];
    		    });
    		    cb(obj);
    		});
    		
    	},

        getDataForObjectWithId: function(objectName, objectId, objectFieldName, cb) {
            if ( (navigator.userAgent.match(/iPad/i) != null) ) {
                
                var cbFnName = this.getRandomFunctionName();
                window[cbFnName] = function(result) {

                    // preprocess the result

                    // if the value is the same as the ObjectName.FieldName requested, then there was
                    // no value so set it to the empty string
                    if (result[objectName][objectFieldName] === (objectName + '.' + objectFieldName)) {
                        result[objectName][objectFieldName] = '';
                    }

                    // call the callback
                    cb(result);
                };
                document.location = 'veeva:getDataForObject(' + objectName + '),objId(' + objectId + '),fieldName(' + objectFieldName + '),' + cbFnName + '(result)';               
            } else {
                var result = {};
                result[objectName] = {};
                result[objectName][objectFieldName] = objectName + '.' + objectFieldName;
                cb(result);             
            }

        },

        getDataElementsForObjectWithId: function(objectName, objectId, objectFieldNames, cb) {
            var that = this;
            var fns = [];
            $.each(objectFieldNames, function(i, fieldName) {
                
                fns.push(
                    function(callback) {
                        that.getDataForObjectWithId(objectName, objectId, fieldName, function(result) {
                            callback(null, {objectName: objectName, fieldName: fieldName, result: result});
                        });                 
                    }                   
                );
                
            });
            
            var obj = {}
            async.series(fns, function(err, results) {
                
                $.each(results, function(i, result) {
                    obj[result.fieldName] = result.result[result.objectName][result.fieldName];
                });
                cb(obj);
            });
            
        },


    	saveObject: function(objectName, obj, cb) {
    		var cbFnName = this.getRandomFunctionName();
    		window[cbFnName] = cb;
    		var jsonDataAsString = JSON.stringify(obj);
    		var request = "veeva:saveObject(" + objectName + "),value(" + jsonDataAsString + "),callback(" + cbFnName + ")";
    		document.location = request;
    	}

    };
    
})();