canjs/canjs

We CAN build the impossible! https://codepen.io/justinbmeyer/pen/yEGGoK

Nico R.

@nriesco

but when I use it within the donejs project it won't

the way I use it looks like the jsbin (the last one) so you can set each of the properties

whenever you modify any of the inputs that are binded to a property of this new object then every input field is set with the return new Person(newPerson) code

and newPerson contains whatever you wrote on one of the inputs

not the complete object

it is doing something equivalent to this: myObjectInstance = myObjectInstance.propertyOne

Nico R.

@nriesco

every time you modify (even before saving) it will do that so as a result you enter data on any field and then all the fields are set to null/empty

Kevin Phillips

@phillipskevin

maybe it’s an issue with {{#with}}, can you try explicitly doing like {($value)}=“newPerson.name”?

@nriesco

Jeroen Cornelissen

@jeroencornelissen

How do you handle a bulk save or destroy?
I have something like this: let todos = TodoModel.getList() and every todo has a checkbox and are stored in a selection DefineList.
Now I want to delete the selected todo items.

selection.forEach(todo => {
  todo.destroy();
});

This results in multiple requests to the backend, how can I group these request?
Do I make a custom funtion in my model bulkDestroy and then splice them out of my todos list? Or how do you handle this?

lmagarian

@lmagarian

@chasenlehara thanks!

Nico R.

@nriesco

@phillipskevin your approach does work (instead of {{#with}} access to each variable using newPerson.xxxxx)

but I fixed other stuff at the same time so I need to make sure if that was actually the solution or not

I’ll let you know asap

Kevin Phillips

@phillipskevin

ok, thanks

Nico R.

@nriesco

@phillipskevin yes, somehow {{#with}} is not working correctly, I’ll try one last thing..

Kevin Phillips

@phillipskevin

only in donejs?

Nico R.

@nriesco

no it didn’t work (wrap it with an {{#if}} statement)

only in donejs

Kevin Phillips

@phillipskevin

what about just

{{#newPerson}}
…
{{/newPerson}}

Nico R.

@nriesco

I’ll try

cool that did the trick!!!

Kevin Phillips

@phillipskevin

can you open an issue for {{#with}} ?

in donejs/donejs

Nico R.

@nriesco

sure! thanks again!

Kevin Phillips

@phillipskevin

we can check if it’s working in 1.0

Justin Meyer

@justinbmeyer

@jeroencornelissen I would put a destroyList or some method on your list that makes the requests

and then call destroyedInstance on each one (assuming can-connect)

lmagarian

@lmagarian

I'm getting this error: Error: TypeError: Cannot redefine property: _instanceDefinitions
at Function.defineProperty (<anonymous>)
at defineConfigurableAndNotEnumerable (can-define.js:32)
at DefineMap.define.setup (can-define.js:712)
at DefineMap.setup (map.js:113)
at Function.newInstance (can-construct.js:289)
at DefineMap.init (can-construct.js:594)
at new DefineMap (eval at <anonymous> (can-construct.js:NaN), <anonymous>:3:32)
at Object.observable (can-define.js:818)
at Object.eval (can-define.js:708)
at each (each.js:39)

From this code: Message.get({ "id": messageId })

What does it mean, and how do I fix it?

Frank Lemanschik

@frank-dspeed

it means you should post a issue fully described in can-define project on github

i guess

and befor that search for existing issues

Jeroen Cornelissen

@jeroencornelissen

@justinbmeyer What does calling destroyedInstancedo? I expected that it would remove my item from the list, but it doesn’t.
I’ve set up a jsbin with how I thought it would work. See the removeAllItems function.
http://jsbin.com/noguwup/9/edit?html,js,output

Kevin Phillips

@phillipskevin

@lmagarian what does Message look like?

@jeroencornelissen I think you just want destroy

Jeroen Cornelissen

@jeroencornelissen

@phillipskevin no that would result in additional backend requests. I would like to prevent that from happening.

Kevin Phillips

@phillipskevin

Oh, ok. Sorry. I remember now what you’re trying to do.

don’t you have to make those requests at some point? in order for the items to be deleted on the server.

Jeroen Cornelissen

@jeroencornelissen

inside Item.List i have a function called destroyList that does that (as suggested by Justin)

Jeroen Cornelissen

@jeroencornelissen

I have cross-posted my question on the forums, so it wouldn’t get lost in this channel:
http://forums.donejs.com/t/bulk-actions-destroy-update-on-multiple-items/575

Justin Meyer

@justinbmeyer

Contributors meeting: https://www.youtube.com/watch?v=OibOpPvjEPc

deepasrikanth

@deepasrikanth

hi I have a question regarding components. I have a generic component that I would like to use from other components

This generic component will display a small ui with buttons where the click handler will be implemented in the component that is consuming the generic component.

though I am able to pass the callback function name as the click handler, it appears that the scope is not clear. When I execute the code its looking for the callback implementation in the generic component where as its available in the context its being called. How can I address this?

Kevin Phillips

@phillipskevin

you’ll want to pass the function in to the generic component

http://canjs.com/doc/can-stache/keys/at.html

deepasrikanth

@deepasrikanth

I am passing function name. The function is in the viewModel of the calling component . Are you suggesting that I should pass the function code itself?

Kevin Phillips

@phillipskevin

so in the parent component, do something like <generic-component {handler}=“@clickHandler” />

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