I have a recursive template.
new Ext.XTemplate(
'<tpl for="."><div>'+
'<div class="select">{text}</div>'+
'{[this.putChildren(values)]}'+
' </div></tpl>'
,
{
putChildren:function(values){
if(values.children){
Ext.each(values.children,function(child,index,arr){
return this.apply(values.children);
}
})
I set itemSelector:'select'
The thing is that when I load the data I get an error "records[i] is undefined" and when I set a listener the event is fired on every click but I get item=undefined on every node except the root.
I cant set a treeStore because dataview only excepts store or jsonstore. (maybe I'm doing something wrong?)
so I have a simple question how can I draw a tree using data view and a store?
I couldn't find any good recourse for this...
actually I have a template like this
http://www.youtube.com/watch?v=UhBjMws1H10&t=35m52s
I just cant load the data correctly...
do I need Store or TreeStore or something else?
thnx in advance
So why not use tree Panel?
http://docs.sencha.com/ext-js/4-0/#!/api/Ext.tree.Panel
Have you ever solved this problem? Having the exact same issue. Although I haven't spent a lot of time with it for now.
Maybe it's useful for you to iterate directly through the children.
So, instead of
<tpl for=".">
i think you can directly use
<tpl for="children">
This makes it possible to use values as a variable already for each child.
Related
I have the following Ember.js code (in a model):
subdata: DS.hasMany('App.Subdata'),
message_subdata: function() {
return this.get('subdata').filterBy('tag', 'message');
}.property('subdata', 'subdata.#each')
This worked just fine in RC7. In RC8+, I know they made changes to the way that observers fire, but for the life of me, I can't figure out how to get it working again. I know it says to make sure to call get before observing the property, but I'm using this property in a template, so doesn't the template have to get the property?
Right now, when the page first loads, none of the data gets shown because none of the subdata is loaded yet. That's how it's always been. But in RC7, as soon as the records were loaded, it would fire the observers and update the page. Now, for some reason, the observers aren't being update and the page won't update. The only way I can seem to force it to update is by changing the subdata property (or simulating a change with notifyPropertyChange).
How can I get my properties to work as they did in RC7?
EDIT: I thought I would give a quick update on how I did sorting AND filtering. It's probably not the best way, but I fiddled for a while to land on this solution.
subdata: DS.hasMany('App.Subdata'),
message_subdata_filtered: Ember.computed.filterBy('subdata', 'tag', 'message'),
message_subdata: Ember.computed.sort('message_subdata_filtered', function(a,b) {
return a.get('timestamp') - b.get('timestamp');
});
There might be a way to do it in one line, but this works for me.
I guess the new way of doing computed arrays is by using something like this:
subdata: DS.hasMany('App.Subdata'),
message_subdata: Ember.computed.filterBy('subdata', 'tag', 'message')
I concatinate my application code from multiple js files into one js file. Therefore I can't control the order, and to be honest would not want to. To specify a custom adapter with ember-model you need to create an instance of it like so:
App.User.adapter = Ember.CustomAdapter.create();
So if the CustomAdapter's code appears after the above statement I get the [Uncaught TypeError: Cannot call method 'create' of undefined] error.
App.User.adapter = App.CustomAdapter.create();
App.CustomAdapter = Ember.Adapter.extend({
// custom
});
Is there a way around this?
The order of code loading is very, very important. That's just a fact of life. You need to either figure out how to make your current tool load things in the order that you want, or you need a new tool.
Please give me real example of emberjs. This example will help me understand how to write in emberjs.
Description of example:
Please open this link first:
http://jsfiddle.net/kwladyka/KhQvu/2/
(this is prototype to better understand what i am talking about)
And then read:
Emberjs download Groups.owner by JSON from json.php?name=groups-owner&user_id=58 and Groups.member from json.php?name=groups-member&user_id=58. Both in Groups.all.
In object Groups i have all values of arrays what i read from JSON. I want example read something like that: owner[2][name].
Then from CreateGroupsSelect i want read Groups.all and create ListBox with values group_id and names name. And when i change select i want change <p>You select {{name}} with id {{id}}</p> and refresh data in other View emberjs objects.
I will be really gratefull for help. I am trying learn emberjs but i totally block with this example.
Ok, so i have many questions :)
1)
How to bind value form input select to attribute in controller
var val = $('select option:selected').val();
Where can i find list of possible ussage like a "select option:selected". Any documentatin for that? Where?
2)
"didInsertElement"
How can i know i should use this? How should i looking in documentation to know that? Why not Ember.Select.Change for that?
3)
Why author use "View", i thought for select i should use class "select"?
4)
Seriously this is my first language when i fill all is so random and i dont have any idea how to know what i can write and where. I fill really stupid with that. Any hint how to understand that?
5)
Ok so step by step...
First of all i want read JSON and prepare data to use.
Organizer.Groups = Ember.Object.extend({
owner: [],
member: [],
all: function(){
var owner = this.get('owner');
var member = this.get('member');
return owner.concat(member);
}.property('owner', 'member'),
});
a) "Object" is good choice for that?
b) I want fill "owner" by array from "json.php?name=groups-owner&user_id=58". How to do that? Did i define "owner" corretly or i should write "ArrayController" or something else for that? Mayby just "Array" or "ArrayProxy"? I am filling so confuse now.
c) How should i initiate load data from JSON? I want do this only one time on the beginning.
PS Sorry if you fill my questions are so stupid but i really dont know answers and i dont hide this :)
Here is an example of how to work with select menu in Ember js
select dropdown with ember
Here is an example of working with routes and outlet helper
Right way to do navigation with Ember
If you use routing make sure you have ember latest, routing is still not released.
Router / StateManager - can't make it work
When using latest emberjs refer to documentation in source code, the documentation in ember site will be for present stable release.
https://github.com/emberjs/ember.js
The links to routing is provided from your fidle title "Router with dynamic routes"
It will be hard to solve your complete problem, give it a try starting with the routing example from above, when you are stuck ask more specific questions, we'll be happy to help.
EDIT : Some of the links are already outdated.
I am almost done with my first production-ready django-project. I got one big problem left:
I got an article-search-view that renders a list of found articles. Pagination is working just fine for the resultlist. When I click on the article-title the object-detail-page opens. What I want: previous- and next-result-links on the object-detail-page.
I tried several approaches to similar problems but didn't find a working solution. If I try to use a paginator with only one article (for the object-detail-page) I need to know that paginator-index in the resultlist. But how?
Even the .get_next(previous)_by_foo-Method is not really usable in this scenario AFAICT. Or am I missing something obvious here? Thanks for any help in advance!
Paginator from django works with lists. A way of searching indexes in lists it's like that:
['aaa', 'bbb', 'ccc'].index('bbb') # result: 1
or so like this:
model = object()
[object(), object(), model].index(model) # result: 2
Hope that gives you a hint on how you find paginator-index on your list.
If you want to get a link, at object-details-page, to next item from search-result, you must get next item from the search-result. To get a next item you need to perform the same search query which was executed in search-page and apply some extra filters to get only the next item from that list. But here you have a problem: you only have object-id in object-details page, you don't have the search-term. Without search-term you won't be able to create the search-query. That means you need to get search-term somehow. How do you get that search-term? You need to pass it from the search-result-page somehow. You can save the search-term in session/cookie, or, maybe better: you can pass it via a GET parameter to object-details page. Now when you search-term in object-display page, you can perform a search-query, and from that query you can select the next and the previous objects.
I think now you should be able to implement that. If not you could show some of your code of object-details view, maybe someone will write some code for you.
you could use this
next »
« previous
I just don't really get this part
Say you clear a collection of tags by
calling $post->getTags()->clear(); and
then call $post->getTags()->add($tag).
This will not recognize tag being
already added before and issue two
database calls.
What 2 database calls will be issued? Delete all tags of the post then add one? Thats what I'd expect? Or will it be something else?
Did you try to call after the clear?
$entityManager->flush();
If this don't help try to remove one by one in foreach.