I am working by my own on a app with Angular 6 / Flask. I am currently facing an issue and i am not able to find anything whivh is suitting it on the web. Here is my issue :
I have 3 Model : Project, Consultant and Client. To simplify, a Project have the id of a Consultant and a Client, and also two dates. What i want to do is to :
Get the list of all my projects
Iterate on this list to handle each project
Get the Consultant from its id
Get the Client from its id
Set an object with the Consultant, the Client and the two dates
Add this project to a list
Display the list
In fact, my purpose here is to be able to display information of the Consultant and the Client of each project so i need to get the object and not just their id. So i tried to do something from what i found :
ngOnInit() {
this.projectsListSubs = this.projectsApi
.getProjects()
.flatMap(params => {
params.forEach(elem => {
this.project.start_date = elem.start_date;
this.project.end_date = elem.end_date;
return [this.consultantsApi.getConsultant(elem.consultant_id),this.clientsApi.getClient(elem.client_id)]
}
this.dataSource = new MatTableDataSource(this.dataList);
})
.subscribe(params => {
this.project.consultant = params[0].firstName + " " + params[0].lastName;
this.project.client = params[1].name;
this.dataList.push(this.project);
});
}
Of course, it doesn't work. I think this code is garbage and I am not able to find a proper way to manage this case. Could you please help me on this ?
Thanks in advance.
NOTE: the following code and demo are extracted from a larger Meteor + Angular project.
I have the following functions to select and delete objects:
DEMO: http://plnkr.co/edit/Qi8nIPEd2aeXOzmVR6By?p=preview
$scope.selectParty = function(party) {
$scope.party = party;
$scope.type = party.type;
$scope.date = party.date;
}
$scope.deletParty = function(party) {
$scope.parties.remove(party);
}
$scope.selectOrganizer = function(organizer) {
$scope.organizer = organizer;
$scope.name = organizer.name;
$scope.title = organizer.title;
}
$scope.deletOrganizer = function(organizer) {
$scope.party.organizers.remove(organizer);
}
The Select action works on both Parties and Organizers as you can see in the demo, displaying the data in the table underneath.
The Delete action doesn't work. Although, let me point out that in my app, the one I have on my machine and currently working on in Meteor, the Delete action works splendidly on Parties, meaning the syntax "$scope.parties.remove(party)" works. But it doesn't work on the plnkr demo for some reason :(
My question is really about the Organizers Delete action, where I'm targeting an object (organizer) inside an array inside the selected object (party)… that one doesn't work. I'm wondering why, and what is the right syntax.
NOTE 2: I'm aware of Angular's splice and index but I can't use them here as I'm not simply working with Angular arrays but with database data in Meteor.
Thanks!
The organizer is a part of the party object and not a collection on it's own. So what you would need to do is remove the party from the object and then save the party object.
Note2 is incorrect. Unless you wrote your question and plunker wrong.
I am using Angular UI-Calendar to show some events on the Calendar. The events are showing fine on the Calendar. But when I update any event's details, the event's detail is actually modified, but not modified on the Calendar display(eg: start).
Initially, after I modified the event's details, I did a page reload to display modified changes and it worked too.In that method, I had empty $scope.events = []; array, which I filled after retrieving entries from DB.
But now, I want to avoid that page reload. So, once the event's details are modified from modal window, I clear the contents of $scope.events array using $scope.events = []; and then using API call, I fill the new events again in $scope.events array. This is working fine as the List view shows the modified events details. But the Calendar itself shows old entries. e.g if I change start from 11 April to 13 April, the calendar shows event on 11 April whereas List views shows the modified data i.e 13 April. Using Page reload, corrects this i.e event is shown on modified date(13 April).
How can I ensure that the event is modified on Calendar too without a Page reload ?
I tried calendar.fullCalendar('render'); after fetching new entries from DB, but it does not solve the Problem.
Here are some codes :
Initially I did this to send data to DB and then did a page reload to retrieve updated data.
$http.put(url,senddata).success(function(data){$window.location.reload();});
Now I want to avoid the page reload, so I did
$http.put(url,senddata).success(function(data){//$window.location.reload();//sends modified data to server
$scope.events = []; //clear events array
$http.get(url2).success(function(data){ //fetch new events from server, and push in array
$scope.schedule = data;
for(var i=0;i<data.length;i++)
{
$scope.events.push({
idx: data[i].idx,
title: data[i].title,
description : data[i].description,
allDay: false,
start: new Date(data[i].start),
end: new Date(data[i].end),
});
calendar.fullCalendar('render'); //Tried even this, didn't work
}
});
Above code pushes modified event in event array as visible in List view, but calendar still shows old event until page is reloaded.
Try maintaining the same array instance.
Instead of doing:
$scope.events = []
Try:
$scope.events.slice(0, $scope.events.length);
Then when your server request comes back, add each item individually to the existing array:
for(var i = 0; i < newEvents.length; ++i) {
$scope.events.push(newEvents[i]);
}
The reason I suggest this is because what you're describing sounds like the calendar might be holding onto the old list of events. The calendar might not know to update its reference, so instead, let it keep the same reference but change the contents of the array.
Just a quick correction to Studio4Development's answer. You should use "splice" not "slice". Slice returns the trimmed array. What we want to do is actually alter the original array. So you can use:
$scope.events.splice(0, $scope.events.length)
and to add new events:
$scope.events.push(newEvent)
Don't know if you found the solution to your problem, but what worked for me was:
calendar.fullCalendar('refetchEvents');
Here is how I fixed a similar problem on my page.
view (simplified, note using jade)
div#calendarNugget(ng-show="activeCalendar == 'Nugget'" ui-calendar="uiConfig.calendarNugget" ng-model="eventSources")
div#calendarWillow(ng-show="activeCalendar == 'Willow'" ui-calendar="uiConfig.calendarWillow" ng-model="eventSources2")
controller:
As per ui-calendar docs, I start with an empty array for my event sources. Ignore that I should probably rename these eventSources to something about the shop names (willow, nugget)
$scope.eventSources = [];
$scope.eventSources2 = [];
I then call a factory function that makes an http request and pulls a series of events from the DB. The events all have "title", "start", "end" properties (make sure your Date format is correct). They also have a "shop" property, which tells me which calendar to add the event to.
So after receiving the data I make two local arrays, loop through the received http data, and assign the events to those local arrays by shop. Finally, I can re-render the calendars with the proper event data by calling addEventSource, which automatically re-renders as per the fullCalendar docs
It looks something along the lines of this iirc:
function splitShiftsByShop(shifts) {
var nuggetShifts = [];
var willowShifts = [];
for (var i=0; i<shifts.length; i++) {
if (shifts[i].shop === "Nugget") {
var nshift = {
title : shifts[i].employee,
start : new Date(shifts[i].start),
end : new Date(shifts[i].end),
allDay: false
}
nuggetShifts.push(nshift);
} else if (shifts[i].shop === "Willow") {
var wshift = {
title : shifts[i].employee,
start : new Date(shifts[i].start),
end : new Date(shifts[i].end),
allDay: false
}
willowShifts.push(wshift);
}
}
/*render the calendars again*/
$('#calendarNugget').fullCalendar('addEventSource', nuggetShifts);
$('#calendarWillow').fullCalendar('addEventSource', willowShifts);
}
I was having some similar issues where events weren't being refetched after emptying my "eventSource" array ($scope.eventSources = [$scope.completedEvents]) and repopulating it with new events. I was able to overcome this at first by calling 'removeEvents',
uiCalendarConfig.calendars.calendar.fullcalendar('removeEvents')
This is hackish, so after further tinkering I found that events were refetched when my child array is modified,
$scope.completedEvents.splice(0, $scope.completedEvents.length)
After reviewing the source, I can see that the eventSource array is being watched, but the 'refetch' is never occurring. furthermore, I was never able to get the following to work,
uiCalendarConfig.calendars.calendar.fullcalendar('refetchEvents')
According to ui-calendar code, it does actually watch eventSources but never the actual individual sources. So doing a push to, let's say $scope.events ($scope.eventSources = [$scope.events]), will never trigger anything.
So push events to $scope.eventSources[0]
$scope.eventSources[0].splice(0, $scope.eventSources[0].length);
$scope.eventSources[0].push({
title : title,
start : start,
end : end
});
As you already know Full Calendar is dependant on JQuery. Therefore, all you need to do is put an ID on your calendar like this:
<div id="calendar" ui-calendar="uiConfig.calendar" class="span8 calendar" ng-model="eventSources"></div>
and then when ever you want to update the calendar just call:
$('#calendar').fullCalendar('refetchEvents')
I struggled with this for some time as well and this fixed all my problems. I hope this will help you too!
Goodluck!
Although it's late response but hope it may help some. I am putting it forth step by step.
You will need to maintain the same event source as Studio4Development mentioned earlier.
$scope.events //no need to reinitialize it
You will remove the updated event from events array like this (for last event in event array):
$scope.events.splice($scope.events.length - 1, 1);
For event that may exist anywhere in the events array you'll need to find its index using:
var eventIndex = $scope.events.map(function (x) { return x.Id; }).indexOf(eventId);
and then you'll remove it from events array like this:
$scope.events.splice(eventIndex, 1);
Next you'll fetch this event from the API again like this:
getEvent(data.Id);
and in the callback method you'll again add the event in events array:
var getSingleEventSuccessCallback = function (event) {
$scope.events.push(event);
};
Was stuck on this for a while.
What seems to be working for me turned out to be quite simple
I fetch my calendar from google and run an event formatter function. In this I define a new array and at the end of the function I set my eventSource equal to the new array. Then I call $scope.$apply
x = []
for e in events
x.push(
title: e.summary
etc...
)
$scope.eventSource = x
$scope.$apply()
Try this. It worked for me.
function flushEvents()
{
$scope.events.splice(0,$scope.events.length);
for(var i=0; i<$scope.events.length; i++)
{
$scope.events.splice(i,1);
}
}
I found this and it helped me:
$(id_your_div).fullCalendar('removeEvents');
$(id_your_div).fullCalendar('refetchEvents');
I'm not if the title explains what I need to achieve or not but I can change it later if some has a better suggestion.
I'm using KO to manage a whole bunch of data on the client side.
Here's the basic.
I have a list of training sessions
Each has a list of training session parts
Each training session parts are referencing items kept in other lists. For example, I have a list of activities (ex: biking, running, swimming, etc.)
Each activity is identified by an ID which is used in the training session parts to identify which activity was used for a particular session.
Now, all these list are stored as observable arrays, and each member of the lists are observables (I use KO.Mapping to map the JSON coming from the server)
When I display a training session in my UI, I want to display various information coming from various lists
Duration: 1h30
Activity: Biking
Process: Intervals
The only information I have in order to link the training session to its component is an ID which is fine. What I'm not sure is how to data-bind the name (text) of my activity to a <p> or <div> so that the name will change if I edit the activity (by using some functionality of the application).
The training session only has the ID to identify the activity, so I don’t know how to bind the name of the activity based on its ID.
Hopefully this makes senses and someone can help me figure it out. I found lots of info on how to bind to observable array but nothing addressing ID and linked information.
The easiest way would probably be to make your own constructors and link the data by hand. You can use mapping if you really want to, but you'll basically have to do the same manual linking, only in a more verbose format.
This is the fiddle with the example implementation: http://jsfiddle.net/aKpS9/3/
The most important part of the code is the linking, you have to take care to create the activity objects only once, and use the same objects everywhere, as opposed to creating new activity objects for the parts.
var TrainingSession = function(rawData, actualActivities){
var self = this;
self.name = ko.observable(rawData.name);
self.parts = ko.observableArray(ko.utils.arrayMap(rawData.parts, function(rawPart){
return ko.utils.arrayFirst(actualActivities(), function(ac){
return ac.ID() == rawPart.ID;
})
}));
}
var Activity = function(rawData){
var self = this;
self.ID = ko.observable(rawData.ID);
self.name = ko.observable(rawData.name);
}
var MainVM = function(rawData){
var self = this;
//first create an array of all activities
self.activities = ko.observableArray(ko.utils.arrayMap(rawData.activities, function(rawAc){
return new Activity(rawAc);
}));
self.trainingSessions = ko.observableArray(ko.utils.arrayMap(rawData.trainingSessions, function(session){
return new TrainingSession(session, self.activities);
}));
}
I've setup a calendar using FullCalendar with Angular UI. It works fine, I can toggle categories of events nicely, but every time the eventSource is updated the calender view is set to the current date.
I've tried using the gotoDate method and I can see that it works (it also works from the console), but almost immediately after the calender is reverted to the current date. As I'm new to AngularJS I've probably put the gotoDate in the wrong place. But I'm clueless were to put it elsewhere.
I'm using a service that returns a bunch of event objects and pushes them into eventSources, the ng-model of the calendar element. Nothing special, in the controller I have:
$scope.eventSources = [];
var promise = UserCalendarEvents.get(groupName);
promise.then(
function(events) {
$scope.eventSources.push(events);
$('#events-calendar').fullCalendar('gotoDate', 2012, 11);
},
function(reason) {
console.log('Error: ' + reason);
}
);
In this case events are fetched and $scope.eventSources is populated. The calender view is then set to december 2012 and after that, almost instantly, the view swithes to current date. Is it some kind of watch of the ng-model that rerenders the fullcalender and if so how can I set the date of choice?
Update: I ended using joshkurz fix, but in a modified version that honors the selected view, ie if the user has selected basicWeek and changes source data the view shouldn't change to for example month view. That's what I need for my users.
function update() {
scope.calendar = elm.html('');
var view = scope.calendar.fullCalendar('getView');
var m;
var xtraOptions = {};
//calendar object exposed on scope
if(view){
var viewDate = new Date(view.start);
if(m !== 'Invalid Date'){
y = viewDate.getFullYear();
m = viewDate.getMonth();
d = viewDate.getDate();
if(!isNaN(y) && !isNaN(m) && !isNaN(d)){
xtraOptions = {
year: y,
month: m,
date: d
};
}
}
view = view.name; //setting the default view to be whatever the current view is. This can be overwritten.
}
/* If the calendar has options added then render them */
var expression,
options = { defaultView : view, eventSources: sources };
if (attrs.uiCalendar) {
expression = scope.$eval(attrs.uiCalendar);
// Override defaultView if is set in ui-calendar attribute - OK?
if (expression.defaultView) {
expression.defaultView = view;
}
} else {
expression = {};
}
angular.extend(options, uiConfig.uiCalendar, expression, xtraOptions);
scope.calendar.fullCalendar(options);
}
This is a bug with the calendar. You are the first one to say anything about it on StackOverflow. Kudos.
There are a couple of ways that this could be fixed. Its been proposed on github https://github.com/angular-ui/angular-ui/pull/520 that we do away with how the directive re-creates itself anytime the watch is fired, which would stop this behavior. I believe that if we can get this method to work in production then it will be the best solution.
Until then however the fix is to get the current month from a date object created from the view.start field. This month should be added to the options which are used to render the calendar.
Here is a snippet of what the new update function should look like inside of the calendar directive.
/* update the calendar with the correct options */
function update() {
scope.calendar = elm.html('');
var view = scope.calendar.fullCalendar('getView');
var m;
var xtraOptions = {};
//calendar object exposed on scope
if(view){
var d = new Date(view.start);
m = new Date(view.start);
if(m !== 'Invalid Date'){
m = m.getMonth();
if(!isNaN(m)){
xtraOptions = {
month: m
};
}
}
view = view.name; //setting the default view to be whatever the current view is. This can be overwritten.
}
// console.log(m)
/* If the calendar has options added then render them */
var expression,
options = {
defaultView : view,
eventSources: sources
};
if (attrs.exCalendar) {
expression = scope.$eval(attrs.exCalendar);
} else {
expression = {};
}
angular.extend(options, uiConfig.exCalendar, expression, xtraOptions);
scope.calendar.fullCalendar(options);
}
This has not been properly tested on the angular-ui CI server, but it works fine as I am using it in production currently.
With AngularUI wrapping FullCalendar in a directive for you, the calendar object can be accessed via $scope.calendar. "The AngularJS Way" is to avoid direct DOM manipulation in controllers.
In your particular case, you'd write this instead:
$scope.calendar.fullCalendar('gotoDate', 2012, 11);
AngularUI does have a watch on eventSource and event that calls an update function every time the length of either changes. You can view the source here:
https://github.com/angular-ui/angular-ui/blob/master/modules/directives/calendar/calendar.js
You can see that the calendar object at $scope.calendar gets recreated with a new set of events everytime the event model changes. This is why your date change isn't going through -- the event is being added, triggering the update, your date change goes in, the whole calendar is changed and your date change is lost.
Two (not the best) things pop up at me without changing AngularUI's code:
You can use AngularJS's $timeout service and wait a set
time after events are loaded, the calendar is finished updating,
then call your date change.
You can add a $watch on the scope that triggers your date change
everytime the calendar object changes:
http://plnkr.co/edit/Ww08VX?p=preview
I created that example above. In the test() method, I'm just loading some fake data into events via a promise (they'll be added in March 2013) then changing the date to December 2012. I'm watching $scope.calendar and everytime it changes (an update is triggered in the directive) I resend the date command. You should be sent to December 2012 without even seeing the new events go in, but if you go back to March 2013, they should be there. I stuck the watch in another .then assuming you'll use some value that's returned to set the date dynamically.
Another way to solve the issue without changing the Angular-UI source is to declare the calendar like this:
<div ui-calendar="{viewDisplay:viewDisplayHandler,month:monthVal,year:yearVal}" ng-model="eventsArr"></div>
And to have a viewDisplayHandler function in the scope that sets monthVal and yearVal to the appropriate values in order to have the date on the calendar set after the whole calendar recreation:
$scope.viewDisplayHandler = function(view) {
var viewStart = view.start;
$scope.yearVal = viewStart.getFullYear();
$scope.monthVal = viewStart.getMonth();
}
This is how i solved it before issuing the pull request on GitHub; it's not the optimal method i guess, but i have been using it in production for a while and it seems to be ok and does not require changing Angular-UI's code.