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Will Stanton
@wstant
ah I see, I tried route.data.serialize(); and routeTestObject.serialize(); before the test. It works with .serialize() in the test line
thanks Kevin
Kevin Phillips
@phillipskevin
cool, no problem, Will
Viktor Busko
@Lighttree

Maybe someone have an idea:
I'm trying to dynamically update UI when save something to data base using real-time behavior.
When I use fixture with data and call my list like:

entityListPromise: {
        get() {
            return Entity.getList({});
        }
    },

All works fine and when I save items like:

save() {
        this.entity.save().then((entity) => {
            Entity.connection.createInstance(entity);
            this.close();
        });
    },

UI updates automatically.

But as soon as I disable fixture and do the call with real get params that I need:

entityListPromise: {
        get() {
            return Entity.getList({
                employeeId: this.owner.id,
                startDate: new Date(2017, 1, 1).getTime(),
                endDate: Date.now(),
                limit: 1000
            });
        }
    },

It doesn't work. As I got these params somehow broke this...

Viktor Busko
@Lighttree

The only idea that I had is that the problem in these params:

startDate: new Date(2017, 1, 1).getTime(),
endDate: Date.now(),
limit: 1000

they are not presented in Map that I use.

Gregg Roemhildt
@roemhildtg
Can I pass a property to a define map that I don't want to be serialized?
var obj = new DefineMap({
    myProp: { ....} // I don't want to serialize myProp when I call obj.serialize()
})
Jeroen Cornelissen
@jeroencornelissen
@roemhildtg create a custom Definemap with DefineMap.extend and then setserialize: false on the prop.
Gregg Roemhildt
@roemhildtg
@jeroencornelissen yup, I think that's the only way to do so.
Nico R.
@nriesco

I'm really confused when declaring observables/variables within a defineMap. I think this is probably a basic topic, but I don't know how it really works.

I've seen (so far) the following syntaxes:

export const ViewModel = DefineMap.extend({
  var1: { type: String, value: 'super' },
  var2: { type: 'string', value: 'super' },
  var3: { value: 'hello', serialize: false},
  var4: 'string',
  var5: 'any',
  var6: '*',

})

I don't really know their differences and when to use them. As for the serialize option does it mean that ViewModel.serialize() would return everything except from attributes with serialize: false option?

Thanks

Jeroen Cornelissen
@jeroencornelissen
@nriesco yes, .serialize() doesn’t return serialize: false properties. I see them as “private” properties.
var1 is incorrect and should be Type with a capital T: Type: String or Type: MyCustomMap
var5 & var6 are identical, it means that your var can be anything. If you pass an object to type: ‘*’it stays an object and isn’t converted to a DefineMap.
AntonProkofyev
@AntonProkofyev
Hi all is there any extended guide for algebra?
Kevin Phillips
@phillipskevin
@nriesco https://canjs.com/doc/can-define.types.propDefinition.html is the best place to look to learn about the differences
Nico R.
@nriesco
thanks @phillipskevin it looks like that plus https://canjs.com/doc/can-define.types.html will help me understand (also thanks @jeroencornelissen !)
Kevin Phillips
@phillipskevin
there's also https://www.youtube.com/watch?v=eXp3m-ZlL4Y if you prefer a video
Justin Meyer
@justinbmeyer
Justin Meyer
@justinbmeyer
actually, it will be here: https://www.youtube.com/watch?v=R4F_U_BwwWM
Frank Lemanschik
@frank-dspeed
I need a new Job i think
Viktor Busko
@Lighttree

Guys correct me if I'm wrong. I need to add items to the list, and on UI it should appear at the top of the list (currently it adds to bottom and this is expected).
I'm using real-time behavior so can.js understands when to add by itself:

save() {
        this.entity.save((entity) => {
            Entity.connection.createInstance(entity);
        });
 },

What the correct way to tell it to add to very top of the list ? custom sort function in component when my list changes ?
There is also https://canjs.com/doc/can-set.props.sort.html but not sure that my case is correct for this, because as I got this designed to understand where we need to insert item, but I know this.

Frank Lemanschik
@frank-dspeed
hmmm there was a example for that
i think todoMVC
that adds todo on top
Viktor Busko
@Lighttree
let me check
Frank Lemanschik
@frank-dspeed
but i am wondering why you tigger realtime behavier in a save function=?
shouldn't that be called from a event system?
Viktor Busko
@Lighttree
mmm...
Frank Lemanschik
@frank-dspeed
like socket.io
i mean this should get called with entity even if thats created else where and not only in your frontend or i am wrong?
or even if this is not a distributed system you should maybe tigger it from a event emitter i think
did you know that a canDefineMap is a eventEmitter?
Viktor Busko
@Lighttree
Give me a min to think about :)
Frank Lemanschik
@frank-dspeed
ya sure all no problem i understand that this is much to learn and understand :)
Viktor Busko
@Lighttree

I just based my solution on this example:

https://canjs.com/doc/can-connect/real-time/real-time.createInstance.html

as I got we have to call this createInstance right after our connection saved the instance. In my case this is not socket.io but normal ajax call based on url behavior.

or even if this is not a distributed system you should maybe trigger it from a event emitter i think
not sure that I understand the way how this should be organized.

did you know that a canDefineMap is a eventEmitter?
I know that we can call something like map.dispatch('customEvent', [data]), but not sure that I understand how this should improve the case.

Frank Lemanschik
@frank-dspeed
then i don't understand why you need to use createInstance at all
its for getting called external
Viktor Busko
@Lighttree
Mmmm this updates UI on the fly :)
so I just make save and UI updates with the new item in the list )
Frank Lemanschik
@frank-dspeed
your case looks more like return new Entity(entity)
is what you want
it sounds like you designed something wrong :)
ah UI updates
i understand the normal way for this is diffrent i think but overall when it works let it work
but in general the ui should simply update when a value changes
because defineMaps are event emitters that dispatch events
create instance is a bridge
when a creation happens outside the ViewModel of the object
for example if you write a function that polls a server for changes
it can call this to add instances from server
but its not needed if your work in your frontend only
Viktor Busko
@Lighttree

MMmmm ok I'll try to clarify the case, because I showed you just one function :)

I have 1 component that renders list of entitiy
I have another component that adds new items in this list. But this is separate component, so I have to make "something" to update the list in another component.
And real-time with createInstance do the work :) Well...not sure that this is correct way.

I had no expectations that entity adder component will update list in another component, because it knows nothing about it. It just makes POST request using connection