#emberjs

model has object "params" which has item "x", how can i watch x as property? .property('model.params.x') seems to get called if any of params is changed

Pro|: http://guides.emberjs.com/v1.11.0/object-model/...

cool thanks

oops, that's not what i'm looking for?

hm thought params was an array but it says object there, sry then no idea ^^

Pro|: sounds like params is changing

alexspeller: yes params is changing but i'd like to watch only for model.params.x

Pro|: if you are making a property why does it matter?

Pro|: if you observe model.params.x the property will recompute when either model.params.x changes or model.params changes or model changes

because when that property changes, one view is re-rendered

Pro|: in that case make another computed property

how can i watch only for model.params.x

Pro|: use computed.alias to get x. Then watch that property

aha!

now i have x: Ember.computed.alias('model.params.x') and i'm watching for that elsewhere .property('x')

it still gets executed when something else from parameters is changed

I'm filtering a model by calling `Ember.computed.filterBy('model', 'type', type)`. how can I extend this to further sort the result by name?

Pro|: it won't be that

Pro|: it could be that you are returning a different object each time for x

Pro|: why are you changing the whole params object anyway?

tbuehlmann: make a new property

tbuehlmann: using computed.sort

alexspeller: model.params.y is changing, not the whole params

Pro|: that sounds wrong

params is binded in to a form

Pro|: computed properties only recompute if their dependent keys change

Pro|: if your computed property depends on model.param.x, it will *only* recompute if model, model.params, or model.params.x changes

hi all

/ how do add Student to namespace App

Pro|: or if you manually fire an update with propertyDidChange

alexspeller: help plz, see http://emberjs.jsbin.com/wiwutupeco/3/edit

alexspeller, did it that way now, thanks. thought there's a shorter way, but that's good as well

Whats the best approach to save associations with a record. I've model with a hasMany. Saving my 'parent' model will send null as ids for the associations

mszrnyi: sounds like you need EmbeddedRecordsMixin

alexspeller: Thanks. Didn't use it yet. But in gerneral, when using a model with relations which might be created on a models new route as well, embedding is the proper solution in ember?

When I run ember install ember-cli-simple-auth, I get this error: The `ember generate` command requires an entity name to be specified. For more details, use `ember help`. Does anybody know why? (https://github.com/simplabs/ember-cli-simple-au...)

Hey, I am creating a multi part form with Ember and following the answer from here to handle each section http://stackoverflow.com/questions/21620782/mul... but in order to save the values from each form section I need to use an ember object to save the values

what is the correct way to create a temp ember object in which I can add values and then later I will save to a modal

joshua__: I am really new to emberjs, so this is probably wrong, but I believe you just use the model for that.

joshua__: the model is modified on each form pane the user goes through and at the end you send it to the server.

joshua__: Em.Object.create(0

*create()

Thanks alexspeller

I'm trying to embed an external javascript component https://gist.github.com/alex88/e4af119ec287eaa6...