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Updating a specific record in the database?

I'm using Javascript with applab. The code creates new users fine, but it only updates the first record. Any ideas how to fix this so that it will update for each new and returning user? I think I need to use a math function with "mostRecentID" or "record.ID" to achieve this.
Link to Project: https://studio.code.org/projects/applab/bSkJw2auZx8Iq7ZGemsT7HwQrOVBWFPl6eLl0R0a6VU If you go to "how it works (view code)", and then you can see the code and the database.
//The database for this code already exists.
//This code creates new users fine, but it only updates the first record.
//What code will update a specific ID in the database
//I think I need to use a math function with "mostRecentID" or "record.ID" to achieve this.
var mostRecentID=1;
var player = {};
var UserID = getUserId();
onEvent("addNewRecordButton", "click", function() {
readRecords("AllUserData", player, function(records) {
var count = records.length;
if (count > 1) {
} else if ((count == 1)) {
} else {
var player = {};
player.UserID = getUserId();
player.Username=getText("usernameInput");
createRecord("AllUserData", player, function(record) {
mostRecentID=record.id;
});
}
});
});
onEvent("updateInformationButton", "click", function() {
updateRecord("AllUserData", {id:mostRecentID,UserID:getUserId(),Username:(getText("usernameInput"))}, function() {
});
});

Let's say you wanted to update a record matching the current user's user ID. You would need to specify the user ID in the parameters object.
readRecords("AllUserData", {UserID: getUserId()}, function (records) {
if (records.length > 0) {
updateRecord("AllUserData", {id: records[0].id, UserID:getUserId(),Username:(getText("usernameInput"))}, function () {
// callback code
});
} else {
createRecord("AllUserData", {UserID:getUserId(),Username:(getText("usernameInput"))}, function () {
// callback code
});
}
});

Unable to update table in Advanced Data Persistence mode

I have an issue related to database. I am currently working with Gupshup bot programming. There are two different data persistence modes which can be read here and here. In the advanced data persistence, the following code is documented to put data into data base:
function MessageHandler(context, event) {
if(event.message=='update bug - 1452') {
jiraUpdate(context);
}
}
function jiraUpdate(context){
//connect to Jira and check for latest update and values
if(true){
context.simpledb.doPut("1452" ,"{\"status\":\"QA pending\",\"lastUpdated\":\"06\/05\/2016\",\"userName\":\"John\",\"comment\":\"Dependent on builds team to provide right build\"}");
} else{
context.sendResponse('No new updates');
}
}
function DbPutHandler(context, event) {
context.sendResponse("New update in the bug, type in the bug id to see the update");
}
If I want to change only one of column (say status or last Updated) in the table for the row with key value 1452, I am unable to do that. How can that be done?
I used the following code:
function MessageHandler(context, event) {
// var nlpToken = "xxxxxxxxxxxxxxxxxxxxxxx";//Your API.ai token
// context.sendResponse(JSON.stringify(event));
if(event.message=='deposit') {
context.sendResponse("Enter the amount to be deposited");
}
if(event.message=="1000") {
jiraUpdate(context);
}
if(event.message== "show"){
context.simpledb.doGet("1452");
}
}
function HttpResponseHandler(context, event) {
var dateJson = JSON.parse(event.getresp);
var date = dateJson.date;
context.sendResponse("Today's date is : "+date+":-)");
}
function jiraUpdate(context){
//connect to Jira and check for latest update and values
if(true){
context.simpledb.doPut("aaa" ,"{\"account_number\":\"90400\",\"balance\":\"5800\"}");
} else{
context.sendResponse('No new updates');
}
}
/** Functions declared below are required **/
function EventHandler(context, event) {
if (!context.simpledb.botleveldata.numinstance)
context.simpledb.botleveldata.numinstance = 0;
numinstances = parseInt(context.simpledb.botleveldata.numinstance) + 1;
context.simpledb.botleveldata.numinstance = numinstances;
context.sendResponse("Thanks for adding me. You are:" + numinstances);
}
function DbGetHandler(context, event) {
var bugObj = JSON.parse(event.dbval);
var bal = bugObj.balance;
var acc = bugObj.account_number;
context.sendResponse(bal);
var a = parseInt (bal,10);
var b = a +1000;
var num = b.toString();
context.simpledb.doPut.aaa.balance = num;
}
function DbPutHandler(context, event) {
context.sendResponse("testdbput keyword was last put by:" + event.dbval);
}

Since the hosted DB that is provided by Gupshup is the DynamoDB of AWS. Hence you can enter something as a key, value pair.
Hence you will have to set the right key while using doPut method to store data into the database and use the same key to get the data from the database using the doGet method.
To update the data you should first call doGet method and then update the JSON with right data and then call doPut method to update the database with the latest data.
I have also added something which is not present in the documentation, You can now make DB calls and choose which function the response goes to.
I am refactoring your example as using 3 keywords and hard coding few things just for example -
have - this will update the database with these values
{"account_number":"90400","balance":"5800"}
deposit - on this, the code will add 1000 to the balance
show - on this, the code show the balance to the user.
Code -
function MessageHandler(context, event) {
if(event.message=='have') {
var data = {"account_number":"90400","balance":"5800"};
context.simpledb.doPut(event.sender,JSON.stringify(data),insertData); //using event.sender to keep the key unique
return;
}
if(event.message=="deposit") {
context.simpledb.doGet(event.sender, updateData);
return;
}
if(event.message== "show"){
context.simpledb.doGet(event.sender);
return;
}
}
function insertData(context){
context.sendResponse("I have your data now. To update just say \"deposit\"");
}
function updateData(context,event){
var bugObj = JSON.parse(event.dbval);
var bal = bugObj.balance;
var a = parseInt(bal,10);
var b = a + 1000;
var num = b.toString();
bugObj.balance = num;
context.simpledb.doPut(event.sender,bugObj);
}
function EventHandler(context, event) {
if (!context.simpledb.botleveldata.numinstance)
context.simpledb.botleveldata.numinstance = 0;
numinstances = parseInt(context.simpledb.botleveldata.numinstance) + 1;
context.simpledb.botleveldata.numinstance = numinstances;
context.sendResponse("Thanks for adding me. You are:" + numinstances);
}
function DbGetHandler(context, event) {
var accountObj = JSON.parse(event.dbval);
context.sendResponse(accountObj);
}
function DbPutHandler(context, event) {
context.sendResponse("I have updated your data. Just say \"show\" to view the data.");
}

Comparing input value with value of an array in AngularJS

I have a problem with the validation about existing values. I don't know how to compare two values and add the new value only, when it isn't exist in the Database. I've tried with angular.forEach() but it adds the new object always when the compare (what I'm doing with angular.equals()) isn't false and thats wrong. The object have to be only one time in the database.
Here is my create function:
$scope.createItem = function (createItem) {
//here I have to define a query to compare createItem.lname with the table list (array items from the db) in the view.
//That was the code:
angular.forEach(nameslist, function (value) {
if (angular.equals(createItem.lname, value.lname)) {
CrudService.create(createItem).then(
function () {
//success code
$scope.createItem = null;
},
function (err) {
//error code
});
}
}
});
}
Can anyone give me some help.. I don't know how to solve it.

var itemAbsent = namelist.map(function(value){
return value.name;
}).indexOf(createItem.name) < 0;
if (nameAbsent){
CrudService.create(createItem).then(
function () {
//success code
$scope.createItem = null;
},
function (err) {
//error code
});
}
}

Angularjs must refresh page to see changes

What I have is simple CRUD operation. Items are listed on page, when user clicks button add, modal pops up, user enters data, and data is saved and should automatically (without refresh)be added to the list on page.
Service:
getAllIncluding: function(controllerAction, including) {
var query = breeze.EntityQuery.from(controllerAction).expand(including);
return manager.executeQuery(query).fail(getFailed);
},
addExerciseAndCategories: function(data, initialValues) {
var addedExercise = manager.createEntity("Exercise", initialValues);
_.forEach(data, function(item) {
manager.createEntity("ExerciseAndCategory", { ExerciseId: addedExercise._backingStore.ExerciseId, CategoryId: item.CategoryId });
});
saveChanges().fail(addFailed);
function addFailed() {
removeItem(items, item);
}
},
Controller:
$scope.getAllExercisesAndCategories = function() {
adminCrudService.getAllIncluding("ExercisesAndCategories", "Exercise,ExerciseCategory")
.then(querySucceeded)
.fail(queryFailed);
};
function querySucceeded(data) {
$scope.queryItems = adminCrudService.querySucceeded(data);
var exerciseIds = _($scope.queryItems).pluck('ExerciseId').uniq().valueOf();
$scope.exerciseAndCategories = [];
var createItem = function (id, exercise) {
return {
ExerciseId: id,
Exercise : exercise,
ExerciseCategories: []
};
};
// cycle through ids
_.forEach(exerciseIds, function (id) {
// get all the queryItems that match
var temp = _.where($scope.queryItems, {
'ExerciseId': id
});
// go to the next if nothing was found.
if (!temp.length) return;
// create a new (clean) item
var newItem = createItem(temp[0].ExerciseId, temp[0].Exercise);
// loop through the queryItems that matched
_.forEach(temp, function (i) {
// if the category has not been added , add it.
if (_.indexOf(newItem.ExerciseCategories, i.ExerciseCategory) < 0) {
newItem.ExerciseCategories.push(i.ExerciseCategory);
}
});
// Add the item to the collection
$scope.items.push(newItem);
});
$scope.$apply();
}
Here is how I add new data from controller:
adminCrudService.addExerciseAndCategories($scope.selectedCategories, { Name: $scope.NewName, Description: $scope.NewDesc });
So my question is, why list isn't updated in real time (when I hit save I must refresh page).
EDIT
Here is my querySuceeded
querySucceeded: function (data) {
items = [];
data.results.forEach(function(item) {
items.push(item);
});
return items;
}
EDIT 2
I believe I've narrowed my problem !
So PW Kad lost two hours with me trying to help me to fix this thing (ad I thank him very very very much for that), but unfortunately with no success. We mostly tried to fix my service, so when I returned to my PC, I've again tried to fix it. I believe my service is fine. (I've made some changes as Kad suggested in his answer).
I believe problem is in controller, I've logged $scope.items, and when I add new item they don't change, after that I've logged $scope.queryItems, and I've noticed that they change after adding new item (without refresh ofc.). So probably problem will be solved by somehow $watching $scope.queryItems after loading initial data, but at the moment I'm not quite sure how to do this.

Alright, I am going to post an answer that should guide you on how to tackle your issue. The issue does not appear to be with Breeze, nor with Angular, but the manner in which you have married the two up. I say this because it is important to understand what you are doing in order to understand the debug process.
Creating an entity adds it to the cache with an entityState of isAdded - that is a true statement, don't think otherwise.
Now for your code...
You don't have to chain your query execution with a promise, but in your case you are returning the data to your controller, and then passing it right back into some function in your service, which wasn't listed in your question. I added a function to replicate what yours probably looks like.
getAllIncluding: function(controllerAction, including) {
var query = breeze.EntityQuery.from(controllerAction).expand(including);
return manager.executeQuery(query).then(querySucceeded).fail(getFailed);
function querySucceeded(data) {
return data.results;
}
},
Now in your controller simply handle the results -
$scope.getAllExercisesAndCategories = function() {
adminCrudService.getAllIncluding("ExercisesAndCategories", "Exercise,ExerciseCategory")
.then(querySucceeded)
.fail(queryFailed);
};
function querySucceeded(data) {
// Set your object directly to the data.results, because that is what we are returning from the service
$scope.queryItems = data;
$scope.exerciseAndCategories = [];
Last, let's add the properties we create the entity and see if that gives Angular a chance to bind up properly -
_.forEach(data, function(item) {
var e = manager.createEntity("ExerciseAndCategory");
e.Exercise = addedExercise; e.Category: item.Category;
});

So I've managed to solve my problem ! Not sure if this is right solution but it works now.
I've moved everything to my service, which now looks like this:
function addCategoriesToExercise(tempdata) {
var dataToReturn = [];
var exerciseIds = _(tempdata).pluck('ExerciseId').uniq().valueOf();
var createItem = function (id, exercise) {
return {
ExerciseId: id,
Exercise: exercise,
ExerciseCategories: []
};
};
// cycle through ids
_.forEach(exerciseIds, function (id) {
// get all the queryItems that match
var temp = _.where(tempdata, {
'ExerciseId': id
});
// go to the next if nothing was found.
if (!temp.length) return;
// create a new (clean) item
var newItem = createItem(temp[0].ExerciseId, temp[0].Exercise);
// loop through the queryItems that matched
_.forEach(temp, function (i) {
// if the category has not been added , add it.
if (_.indexOf(newItem.ExerciseCategories, i.ExerciseCategory) < 0) {
newItem.ExerciseCategories.push(i.ExerciseCategory);
}
});
// Add the item to the collection
dataToReturn.push(newItem);
});
return dataToReturn;
}
addExerciseAndCategories: function (data, initialValues) {
newItems = [];
var addedExercise = manager.createEntity("Exercise", initialValues);
_.forEach(data, function (item) {
var entity = manager.createEntity("ExerciseAndCategory", { ExerciseId: addedExercise._backingStore.ExerciseId, CategoryId: item.CategoryId });
items.push(entity);
newItems.push(entity);
});
saveChanges().fail(addFailed);
var itemsToAdd = addCategoriesToExercise(newItems);
_.forEach(itemsToAdd, function (item) {
exerciseAndCategories.push(item);
});
function addFailed() {
removeItem(items, item);
}
}
getAllExercisesAndCategories: function () {
var query = breeze.EntityQuery.from("ExercisesAndCategories").expand("Exercise,ExerciseCategory");
return manager.executeQuery(query).then(getSuceeded).fail(getFailed);
},
function getSuceeded(data) {
items = [];
data.results.forEach(function (item) {
items.push(item);
});
exerciseAndCategories = addCategoriesToExercise(items);
return exerciseAndCategories;
}
And in controller I have only this:
$scope.getAllExercisesAndCategories = function () {
adminExerciseService.getAllExercisesAndCategories()
.then(querySucceeded)
.fail(queryFailed);
};
function querySucceeded(data) {
$scope.items = data;
$scope.$apply();
}

How To handle result set of websql in html 5?

I m creating mobile web application using html5 and javascript.I m having two javascript files. AttributesDatabase.js and AttributeView.js.From AttributeView.js i m calling one function from AttributeDatabase.js in that i m executing one select query.Now the query result should go to AtttributeView.js.But the Websql transaction is asynchronous call that is what it is not returning proper result.Is there any way to handle the websql result.
Please help if any way there?
Edited
AttributeView.js
var AttributeDAOObj = new AttributeDAO();
AttributeDAOObj.GetAttributeList();
alert(AttributeDAOObj.GetAttributeList()); //This alert is coming as undefined.
AttributeDAO.js
this.GetAttributeList = function () {
var baseDAOObj = new BaseDAO();
var query = "SELECT AttributeName FROM LOGS";
// this.Successcalbackfromsrc = this.myInstance.Successcalback;
var parm = { 'query': query, 'Successcalback': this.myInstance.Successcalback };
baseDAOObj.executeSql(parm);
}
//To Create database and execute sql queries.
function BaseDAO() {
this.myInstance = this;
//Creating database
this.GetMobileWebDB = function () {
if (dbName == null) {
var dbName = 'ABC';
}
var objMobileWebDB = window.openDatabase(dbName, "1.0", dbName, 5 * 1024 * 1024);
return objMobileWebDB;
}
//Executing queries and getting result
this.executeSql = function (query) {
var objMobileWebDB = this.myInstance.GetMobileWebDB();
objMobileWebDB.transaction(function (transaction) {
//In this transaction i m returning the result.The result value is coming.
transaction.executeSql(query, [], function (transaction, result) { return result; }, this.Errorclback);
});
}
}

The problem is in you succes call back (like in the comment to your question, stated by DCoder)
function (transaction, result) { return result; }
this is returning where to?
So this is how to do it (or at least one way)
you can do for example:
function (transaction,result){
console.log("yes, I have some result, but this doesn't say anything, empty result gives also a result");
// so check if there is a result:
if (result != null && result.rows != null) {
if (result.rows.length == 0) {
// do something if there is no result
}else{
for ( var i = 0; i < result.rows.length; i++) {
var row = result.rows.item(i);
var id = result.rows.item(i).id; //supposing there is an id in your result
console.log('Yeah! row id = '+id);
}
}
}else{
// do something if there is no result
}
};
note the code above can be compacter, but this is how to understand it better.
another way is to put this function is a seperate piece of code, so you keep the sql statement more compact and readable. Like you call you error callback this can be in your function (with this. in front of it) or a completely seperate function.