I am working on Ionic 1 project. I have applied a query to get data corresponding to the project ID but it is not returning all data sometimes. Sometimes the length is 1 or 2 or 6. It should return 6 always. What can be the issue?
self.getTeamMembersByProjectID = function(projectID) {
var parameters = [projectID];
return DBA.query("SELECT * FROM TeamMembers WHERE projectID = (?) ORDER BY displayName", parameters)
.then(function(result) {
return DBA.getAll(result);
});
};
I think you need to loop through the result first then push it to an array
I had a smilier issue before and this what I have done
$scope.ShowAllData = function() { /* SELECT COMMAND */
$scope.images = [];
$cordovaSQLite.execute(db,"SELECT * FROM imageTable ORDER BY id DESC").then( function(res) {
if (res.rows.length > 0) {
for (var i = 0; i < res.rows.length; i++) {
$scope.images.push({
id: res.rows.item(i).id,
image: res.rows.item(i).images
});
}
}
}, function(error) {
alert(error);
} );
return $scope.images;
}
Related
Have some trouble with Angular promise between two loops... First loop walk through an array of value, and for each value, make a PouchDB Query to retrieve some datas. Finally, would like to return to controller a JSON Object that would look like :
{
items: [
{
"attribute": "some value"
},
{
"attribute": "some other value"
},
...
],
"a_total": "some_total",
"another_total": "some_other_total"
}
In this object, "items"
Basically, put the code in a function that looks like :
var _stockByAreas = function(){
var deferred = $q.defer();
var data = {}; // Final datas to return to controller
// Get first array to loop into
var storageAreas = storageAreaService.storageAreaList();
var areas = []; // All of area
// Walk across array
angular.forEach(storageAreas, function(zone){
var area = {}; // First object to return
area.id = zone.id;
area.libelle = zone.libelle;
// Then make a PouchDB query to get all datas that involved
MyKitchenDB.query(function(doc, emit){
emit(doc.storage);
}, { key: area.id, include_docs: true }).then(function (result) {
area.sRef = "tabsController.addTo({id: '" + area.id + "'})";
area.nbProduct = 0;
area.totalQuantity = 0;
area.totalValue = 0;
// ... process result
if(result.rows.length > 0){
// Some results, so... let's go
area.sRef = "tabsController.outFrom({id: '" + area.id + "'})";
var rows = result.rows;
// Counter initialization
var total = 0;
var value = 0;
angular.forEach(rows, function(row){
total++;
var stocks = row.doc.stock;
angular.forEach(stocks, function(stock){
var nearOutOfDate = 0;
var nearStockLimit = 0;
quantity += stock.quantity;
value += stock.quantity * stock.price;
// Evalue la date de péremption
var peremptionDate = moment(stock.until);
var currentDate = moment();
if(currentDate.diff(peremptionDate, 'days') <= 1){
nearOutDate += 1;
}
});
area.nbProduct = total;
area.qteTotale = quantity;
area.valeur = value;
if(quantite == 1){
nearLimitOfStock += 1;
}
areas.push(area); // Add result to main array
});
}
}).catch(function (err) {
// Traite les erreurs éventuelles sur la requête
});
/**
* Hey Buddy... what i have to do here ?
**/
data.items = areas;
data.nearLimitOfStock = nearLimitOfStock;
data.nearOutOfDate = nearOutOfDate;
});
deferred.resolve(data);
return deferred.promise;
}
... But, console returns that "areas" is not defined, and other value too...
I think i don't really understand how promises runs...
Someone is abble to explain why i can't get the result that i expect in my case ?
Thx
Your code is too long, I just give you the approach.
Use $q.all() to ensure all your queries are completed. And use deferred.resolve(data) whenever your data for each query is arrived.
var _stockByAreas = function() {
var query = function(zone) {
var queryDef = $q.defer();
// timeout is for query and response simulations
setTimeout(function() {
// ...
queryDef.resolve( {data: 'MeTe-30'} );
}, 1000);
return queryDef.promise;
}
var promises = [];
angular.forEach(storageAreas, function(zone) {
// ...
promises.push( query(zone) );
});
return $q.all(promises);
}
_stockByAreas().then(function(res) {
// res[0] resolved data by query function for storageAreas[0]
// res[1] resolved data by query function for storageAreas[1]
// ...
});
I have 2 API calls.
The second API call depends on the Property ID returned to make the second API call to check if each of these properties has parking.
If it does, then I add details of that property to an object and push the object into an Array.
The second API call is nested inside the first. After I've looped through all the properties, I check if the Array length is more than 0, if it is then I can display the returned properties in page, else it shows an error.
The problem is even when there are properties returned with parking, the else statement or error function executes, as well as displaying properties on the page.
Is there a way to complete the nested Promise before checking if my Array is more than 0?
Here's my code:
$scope.viewPropertyList = function(latlong) {
$scope.locationError = false;
var latlongArray = latlog.split('::');
var searchLat_scope = latlongArray[0];
var searchLon_scope = latlongArray[1];
if (searchLat_scope && searchLon_scope) {
var data = Property.getAllProperties({
dest: 'property',
apikey: API_KEY,
lat: encodeURIComponent(searchLat_scope),
limit: 10,
lon: encodeURIComponent(searchLon_scope)
}).$promise.then(function(success) {
var propertyMarkers = [];
$scope.dbMarkers = 0;
for (var i = 0, l = success.property.length; i < l; i++) {
(function(i) {
Property.getProperty({
dest: 'property',
propertyId: success.property[i].name,
apikey: API_KEY
}).$promise.then(function(propertyData) {
for (var j = 0, k = propertyData.services.length; j < k; j++) {
if (propertyData.services[j].name === "parking") {
var obj = {
"propertyName": success.property[i].propertyName,
"telephone": success.property[i].telephone,
"postcode": success.property[i].address.postcode,
"city": success.property[i].address.city,
"county": success.property[i].address.county,
"addressLine1": success.property[i].address.addressLine1
};
propertyMarkers.push(obj);
}
}
if (propertyMarkers.length != 0) {
$scope.dbMarkers = propertyMarkers;
$scope.selectedLat = searchLat_scope;
$scope.selectedlog = searchLon_scope;
} else {
$scope.locationErr = true;
$scope.errorMsg = "No properties found";
}
});
})(i);
}
}, function(error) {
$scope.locationErr = true;
$scope.errorMsg = "Something went wrong, please try again";
});
}
}
Two main things :
there's no attempt to aggregate multiple promises generated in a loop.
the if (propertyMarkers.length > 0) {...} else {...} is too deeply nested.
Minor :
the inner iteration can break as soon as 'parking' is found. If it continued and further 'parking' was found, then duplicate markers would be created.
$scope.viewPropertyList = function(latlong) {
$scope.locationError = false;
var latlongArray = latlog.split('::');
var searchLat_scope = latlongArray[0];
var searchLon_scope = latlongArray[1];
if (searchLat_scope && searchLon_scope) {
Property.getAllProperties({
dest: 'property',
apikey: API_KEY,
limit: 10,
lat: encodeURIComponent(searchLat_scope),
lon: encodeURIComponent(searchLon_scope)
}).$promise.then(function(success) {
var propertyMarkers = [];
$scope.dbMarkers = 0;
// create an array of promises by mapping the array `success.property`.
var promises = success.property.map(function(prop) {
return Property.getProperty({
dest: 'property',
propertyId: prop.name,
apikey: API_KEY
}).$promise.then(function(propertyData) {
for (var j=0, k=propertyData.services.length; j<k; j++) {
if (propertyData.services[j].name === 'parking') {
propertyMarkers.push({
'propertyName': prop.propertyName,
'telephone': prop.telephone,
'postcode': prop.address.postcode,
'city': prop.address.city,
'county': prop.address.county,
'addressLine1': prop.address.addressLine1
});
break; // 'parking' is found - no point iterating further
}
}
});
});
/* ******** */
// Aggregate `promises`
$q.all(promises).then(function() {
// This block is now un-nested from its original position,
// and will execute when all `promises` have resolved.
if (propertyMarkers.length > 0) {
$scope.dbMarkers = propertyMarkers;
$scope.selectedLat = searchLat_scope;
$scope.selectedlog = searchLon_scope;
} else {
$scope.locationErr = true;
$scope.errorMsg = 'No parking found';
}
});
/* ******** */
}).catch(function(error) {
$scope.locationErr = true;
$scope.errorMsg = 'Something went wrong, please try again';
});
} else {
$scope.locationErr = true;
$scope.errorMsg = 'Problem with lat/lng data';
}
}
Notes :
that the outer iteration is now coded as success.property.map(), which returns promises and avoids the need for an IIFE.
Extra error handling added
If I got your problem right, you want all Property.getProperty promises of success.property are resolved before going to the success function to check propertyMarkers length.
In that case, you need $q.all to resolve all the Property.getProperty promises for you.
In your for (var i = 0, l = success.property.length; i < l; i++) { appends all the promises into an array
Property.getProperty({
dest: 'property',
propertyId: success.property[i].name,
apikey: API_KEY
})
then use $q.all(arrPromises).then(function(propertyData) { to do the following check.
One more thing worth to mention, promise chaining can be easily achieved by $promise.then(successFn, failFn).then(successFn, failFn).then.... Every time you call then() will create another promise which allows you to chain to next promise and pass value to the next.
I need to push a JSON object to AngularJS and need to check before if the value for one of the objects exist. I need to overwrite the data.
$scope.setData = function(survey, choice) {
keepAllData.push({
'surveyId': survey.id,
'choiceId': choice.id
});
console.log(keepAllData);
toArray(keepAllData);
alert(JSON.stringify(toArray(keepAllData)));
$scope.keepAllDatas.push({
'surveyId': survey.id,
'choiceId': choice.id
});
var items = ($filter('filter')(keepAllDatas, {
surveyId: survey.id
}));
}
function toArray(obj) {
var result = [];
for (var prop in obj) {
var value = obj[prop];
console.log(prop);
if (typeof value === 'object') {
result.push(toArray(value));
console.log(result);
} else {
result.push(value);
console.log(result);
}
}
return result;
}
If the survey id exists in keepalldata, I need to change the recent value with choiceid. Is it possible to do with AngularJS?
Try with this: Before pushing data you have to check if the survey id exists or not. If it exists you have to update choice with the corresponding survey id, otherwise you can push directly.
$scope.setData = function(survey, choice) {
var item = $filter('filter')(keepAllData, {
surveyId: survey.id
});
if (!item.length) {
keepAllData.push({
'surveyId': survey.id,
'choiceId': choice.id
});
} else {
item[0].choiceId = choice.id;
}
console.log(keepAllData);
}
Demo
$scope.keepAllDatas = [];
$scope.setData = function(survey, choice) {
if($scope.keepAllDatas.length == 0) {
$scope.keepAllDatas.push({'surveyId':survey.id,'choiceId':choice.id});
}
else {
var items = ($filter('filter')( $scope.keepAllDatas, {surveyId: survey.id }));
for (var i = items.length - 1; i >= 0; i--) {
// alert(items[i].surveyId);
if(items[i].surveyId == survey.id) {
console.log($scope.keepAllDatas.indexOf(survey.id));
$scope.keepAllDatas.splice($scope.keepAllDatas.indexOf(survey.id),1);
console.log("Removed data")
}
}
$scope.keepAllDatas.push({'surveyId':survey.id, 'choiceId':choice.id});
console.log( $scope.keepAllDatas)
// alert(items[0].surveyId);
}
}
I have a simple AngularJs application of medical cards.
I have storage with it and display it at my home.html using dx-datagrid:
One card has many records, I get records of card from recordsArray by cardId
getVardsRecordsByCardId: function (id, recordsArray) {
if (recordsArray.length != 0) {
for (var i = 0; i < recordsArray.length; i++) {
if (recordsArray[i].cardId === id) {
cardsRecords = cardsRecords.concat(recordsArray[i]);
}
}
}
return cardsRecords;
}
Now I have records just in the third card. I added a function on button for testing it:
var jdskla = [];
var localCardId = 0;
$scope.showCardDetails = {
text: "",
type: "default",
icon: "preferences",
onClick: function () {
if ($scope.itemIdFromShowButton) {
$location.path('/carddetail/' + $scope.itemIdFromShowButton);
var jdskla =[];
var jdskla = businessLogicOfMyApp.getVardsRecordsByCardId($scope.itemIdFromShowButton, $scope.recordsArray);
console.log($scope.itemIdFromShowButton)
console.log(jdskla);
}
else {
alert("Error!!!");
}
}
};
1,3,1 is cardId's and array of records. But, why array of card records don't clears and save last data?
May be somebody know how I can resolve it? Thanks for your answers!
P.S. I'm using ng-view directive in my app and i tried to clear my array use another button:
$scope.backToGeneralPage = {
text: "Back",
onClick: function () {
jdskla = [];
$location.path('/');
}
};
but it wasn't helpful.
You should initialize cardsRecords array in function getVardsRecordsByCardId.
getVardsRecordsByCardId: function (id, recordsArray) {
var cardsRecords = []; // initialize array locally
if (recordsArray.length != 0) {
for (var i = 0; i < recordsArray.length; i++) {
if (recordsArray[i].cardId === id) {
cardsRecords.push(recordsArray[i]);
}
}
}
return cardsRecords;
}
I need a lookup function to be used throughout my application that gets additional data when provided with an id.
My attempt was to create a service:
angular.module("myApp")
.factory("userResource", function($resource) {
return $resource("/api/users");
})
.service("usernameLookup", function(userResource) {
var query = userResource.query(function (data) {
var users = data;
};
return function (userId) {
// EDIT
// How could I wait here until users is populated (and cached) the
// first time this function is used?
var user = { userId: 0, username: "Unknown user" }
for (var i = 0; i < users.leng;th; i++) {
if (users[i].id == userId)
{
user = users[i];
break;
}
}
return user;
};
})
.controller("pageCtrl", function(usernameLookup) {
var vm = this;
vm.userList = [
{ userId: 0 },
{ userId: 1 }
];
for (var i = 0; i < userList.length; i++)
{
userList[i].username = usernameLookup(userList[i].userId);
}
});
(Code compressed and de-minification-proofed for brevity)
I know this is wrong since the users array might not be populated when the actual lookup happens, but I don't know how to make sure it is.
Any suggestions?
Make the users variable part of the service function:
.service("usernameLookup", function(userResource) {
var users = [];
var query = userResource.query(function (data) {
users = data;
};
What I ended up doing was:
angular.module("myApp")
.factory("userResource", function($resource) {
return $resource("/api/users");
})
.factory("usernameLookup", function(userResource) {
return function (user) {
var users = userResource.query(function () {
for (var i = 0; i < users.length; i++) {
if (users[i].id == user.userId)
{
user.username = users[i].username;
break;
}
}
}
};
})
.controller("pageCtrl", function(usernameLookup) {
var vm = this;
vm.administratorsOrSomething = [
{ userId: 0 },
{ userId: 1 }
];
for (var i = 0; i < administratorsOrSomething.length; i++) {
usernameLookup(administratorsOrSomething[i]);
}
});
I'm guessing this is more the JavaScript/AngularJS spirit of things which isn't always obvious for a c/++/# guy.
A working example with mock resources, faked latency etc can be found here
The simplest solution might just be to use scope.$watch, updating the user list whenever it changes. If you find this distasteful (too many $watch expressions can get messy), you can create a userListPromise and only call your usernameLookup when the promise resolves. I can give more specific advice if you show me how the userList is populated, but these should be starting points.
Edit: I think I see what you want now. I still think your best option is to return a promise. I know that sounds like a pain, but it's really not that bad. Plus, when you're relying on web requests to get your data you really can't guarantee you won't end up with a 500 or 404 if the server explodes. A robust SPA needs to assume that any web request might not work. So here is a starting point; note that I don't handle the case when the query promise is rejected.
angular.module("myApp")
.factory("userResource", function($resource) {
return $resource("/api/users");
})
.service("usernameLookup", function(userResource, $q) {
var query = userResource.query(function (data) {
var users = data;
};
return function (userId) {
return query.$promise.then(function(users){
var user = { userId: 0, username: "Unknown user" }
for (var i = 0; i < users.leng;th; i++) {
if (users[i].id == userId)
{
user = users[i];
break;
}
}
return user;
});
};
})
.controller("pageCtrl", function(usernameLookup) {
var vm = this;
vm.userList = [
{ userId: 0 },
{ userId: 1 }
];
for (var i = 0; i < userList.length; i++)
{
userList[i].username = usernameLookup(userList[i].userId);
}
});