Develop Reference

extjs store sometimes calling create instead of update

We have the following store in ExtJS 4.2:
Ext.define('Example.store.BasketDocuments', {
extend: 'Ext.data.Store',
model: 'Example.model.Document',
autoLoad: true,
autoSync: true,
sorters: [
{
property: 'doc_type',
direction: 'ASC'
}
],
proxy: {
type: 'rest',
url: baseUrl + 'document_basket',
headers: {
'Accept': 'application/json',
'Content-Type': 'application/json;charset=utf-8'
},
reader: {
type: 'json',
root: 'items'
},
writer: {
type: 'json'
},
actionMethods: {create: "POST", read: "GET", update: "PUT", destroy: "DELETE"}
}
});
It is attached to a grid with drag and drop functionality.
When we drag around 10 files (for 9 it works) to the grid which would immediately update the store, we get a server error, because we do not implement the POST function for URLs like
/api/document_basket/1964?_dc=1459498608890&{}
This is only for one entry.
For the others it would be
/api/document_basket?_dc=1459498608941&{}
which works.
Dragging only that single entry works.
So ExtJS is sending a POST request with an ID in the URL, which should be a PUT instead? Why is that?

I was able to fix this in my project.
Reason was that I was adding items to the store in a loop - so after each add of - let's say 14 files - a sync was done.
I discovered that there were 105 requests, which is just 1+2+3+4+5+6+7+8+9+10+11+12+13+14 so this caused a race condition.
Solution is to disable syncing before the loop:
onBeforeDropItem: function (node, data, overModel, dropPosition, dropHandlers, eOpts) {
dropHandlers.cancelDrop();
var store = Ext.getStore('BasketDocuments');
store.suspendAutoSync(); // new
if (node.id != 'documenttreepanel-body') {
Ext.Array.each(data.records, function (r, index) {
r = r.copy();
r.phantom = true;
r.data.id = null;
r.data.download_size = 1;
r.data.download_type = 1;
if (r.data.doc_type == 1) {
if (r.data.count == 0) {
Ext.create('Ext.window.MessageBox').show({
title: Ext.ux.Translate.get('Info'),
msg: Ext.ux.Translate.get('Ordner') + '<b>' + r.data.name + '</b>' + Ext.ux.Translate.get(' Is empty and cannot be added ') + '.',
buttons: Ext.Msg.OK,
modal: true
});
} else {
store.add(r);
}
} else {
store.add(r);
}
});
}
store.sync(); // new
store.resumeAutoSync(); // new

ajax request not sending any data ASP.NET MVC project with jQuery

I'm fairly new to asp.net MVC but am baffled as to why my request isn't working.
I'm trying to send an ajax request with jquery as per:
jQuery(function ($) {
var total = 0,
share = $('div.share'),
googlePlusUrl = "https://plusone.google.com/_/+1/fastbutton?url=http://bookboon.com" + $(location).attr('pathname');
setTimeout(function() {
$.ajax({
type: 'GET',
data: "smelly",
traditional: true,
url: share.data('proxy'),
success: function(junk) {
//var $junk = junk.match(regex);
console.log(junk);
},
error: function (xhr, errorText) {
console.log('Error ' + xhr.responseType);
},
});
}, 4000);
And set a line in my RouteConfig as:
routes.MapRoute(null, "services/{site}/proxy", new { controller = "Recommendations", action = "Proxy" });
The markup has a data-attribute value as:
<div class="share" data-proxy="#Url.Action("Proxy", "Recommendations")">
And my Proxy action method starts with:
public ActionResult Proxy(string junk)
The problem is that the junk parameter is always null. I can see in the debug output that the route seems to correctly redirect to this method when the page loads (as per jQuery's document ready function), but I cannot seem to send any data.
I tried sending simple data ("smelly") but I don't receive that neither.
Any suggestions appreciated!

The model binder will be looking for a parameter in the request called junk, however you're sending only a plain string. Try this:
$.ajax({
type: 'GET',
data: { junk: "smelly" }, // <- note the object here
traditional: true,
url: share.data('proxy'),
success: function(junk) {
//var $junk = junk.match(regex);
console.log(junk);
},
error: function (xhr, errorText) {
console.log('Error ' + xhr.responseType);
},
});

$.ajax inside BeforeUpload Event - Plupload

This app is an image uploading tool that uploads images directly from client browser to Amazon S3 using Plupload. So far, everything is working good except this issue.
I've this code forBeforeUpload event.
init: {
BeforeUpload: function (up, file) {
$.ajax({
url: '/ServerTime.ashx',
dataType: 'text',
data: { format: "yyyy-MM-dd_HH.mm.ss.fffffff" },
type: 'POST',
cache: false
}).done(function (data) {
console.log("Before setting ImageName: " + data);
imageName = data + ".JPG";
console.log("After setting ImageName: " + imageName);
up.settings.multipart_params = {
'key': key,
'Filename': imageName,
'acl': 'public-read',
'success_action_status': '201',
'AWSAccessKeyId': accessKey,
'policy': policyDocument,
'signature': policySignature
};
});
}
}
However, I've this error when try to upload a file:
HTTP Error. Upload URL might be wrong or doesn't exist.
On Console, it is printing the expected result as follows:
Before setting ImageName: 2014-04-04_13.33.45.1155072
After setting ImageName: 2014-04-04_13.33.45.1155072.JPG
I guess there is something wrong maybe because I'm using AJAX to get time from server. On the other hand, trying the following code is working without any issue.
init: {
BeforeUpload: function (up, file) {
up.settings.multipart_params = {
'key': "This_Is_Folder_Name/This_Is_File_Name.JPG",
'Filename': "This_Is_File_Name.JPG",
'acl': 'public-read',
'success_action_status': '201',
'AWSAccessKeyId': accessKey,
'policy': policyDocument,
'signature': policySignature
};
}
}
Notice that, this time I'm using static names for Filename and key, and there is no AJAX either
I really need help with this issue. Please suggest me. What I'm doing wrong with using AJAX to get server time and use it as file name?
Thanks.

You might be able to override some of their code by doing the following:
init: {
BeforeUpload: function (up, file) {
$.ajax({
url: '/ServerTime.ashx',
dataType: 'text',
data: { format: "yyyy-MM-dd_HH.mm.ss.fffffff" },
type: 'POST',
cache: false
}).done(function (data) {
console.log("Before setting ImageName: " + data);
imageName = data + ".JPG";
console.log("After setting ImageName: " + imageName);
up.settings.multipart_params = {
'key': key,
'Filename': imageName,
'acl': 'public-read',
'success_action_status': '201',
'AWSAccessKeyId': accessKey,
'policy': policyDocument,
'signature': policySignature
};
file.status = plupload.UPLOADING;
up.trigger("UploadFile", file);
});
return false;
}
}
This would cancel their trigger, so you would have to trigger it yourself. Please note, I have not tested this.
EDIT: I'm not sure if up and file are out of scope though...

If you look in the Plupload source code you'll see this:
// Private methods
function uploadNext() {
var file, count = 0, i;
if (this.state == plupload.STARTED) {
// Find first QUEUED file
for (i = 0; i < files.length; i++) {
if (!file && files[i].status == plupload.QUEUED) {
file = files[i];
if (this.trigger("BeforeUpload", file)) {
file.status = plupload.UPLOADING;
this.trigger("UploadFile", file);
}
} else {
count++;
}
}
// All files are DONE or FAILED
if (count == files.length) {
if (this.state !== plupload.STOPPED) {
this.state = plupload.STOPPED;
this.trigger("StateChanged");
}
this.trigger("UploadComplete", files);
}
}
}
The line that says if (this.trigger("BeforeUpload", file)) { will determine whether the return of the trigger call is truthy or falsy. If truthy, it will next trigger "UploadFile". What that means is that the uploading of the file does not wait for asynchronous code to execute in your BeforeUpload function. As soon as that function returns, the upload can begin. Any async ajax call you make inside your BeforeUpload function will resolve after "UploadFile" is triggered.

Cannot refresh TreeStore in EXTjs

I'm trying to create a web-page in EXTJs that has two major components:
A Form (Ext.form.Panel)
A Panel (Ext.tree.Panel)
The form is supposed to get some values, which should populate tree in second panel. In the button handler of the first panel I have access to the updated JSON object, but I cannot figure out a way to refresh the TreeStore that will update the display in tree.Panel.
This is what I have so far :
Ext.define('TreeServiceData',{
config:{
data : ''
},print : function() {
console.log("Printing data: ")
console.log(this.data.children[0])
}
});
var dataObject = Ext.create('TreeServiceData');
dataObject.setData({'expanded':false,'children':[{'text':'Master','expanded':true,'leaf':false,'children':[{'text':'Child 1','expanded':true,'leaf':false,'children':[{'text':'Child 2','expanded':true,'leaf':false,'children':[{'text':'Child 3','expanded':false,'leaf':false}]}]}]}]})
Ext.define('TreeStoreData',{
extend: 'Ext.data.TreeStore',
model: 'TaskModel',
autoLoad: true,
autoSync: true,
proxy: {
type:'memory',
reader: {
type:'json'
}
},
root:dataObject.getData()
});
var treeStore = Ext.create('TreeStoreData');
Now I'm trying to update and display the value of this treestore on a button call which looks like this :
buttons:[
{
text:'Get CCP/Product',
handler:function (btn, evt) {
dataObject.print();
treeStore.removeAll();
dataObject.setData({'expanded':false,'children':[{'text':'Master11','expanded':true,'leaf':false,'children':[{'text':'Child 12','expanded':true,'leaf':false,'children':[{'text':'Child 23','expanded':true,'leaf':false,'children':[{'text':'Child 34','expanded':false,'leaf':false}]}]}]}]})
dataObject.print();
}
}
]
But on this button handler I'm always getting a "Uncaught TypeError: Cannot call method 'indexOf' of undefined " on treeStore.removeAll() method, where treestore is clearly defined in this context.
Question 1) What is the correct way to refresh a TreeStore ?

Answer 1)
Instead of:
treeStore.removeAll();
dataObject.setData( ... );
You should do:
dataObject.setData( ... ); // This won't affect the store
treeStore.setRootNode(dataObject.getData()); // Actually update the store
Note that changing dataObject's data won't affect the store automatically like you seem to think...

this code works for me (ExtJS 4.2.1)
Total tree panel nodes refresh example:
var responseDictObjects = $.ajax({
data: { Id: this.idDictionary },
dataType: "json",
type: "POST",
cache: false,
url: 'http://' + config.domain + '/' + 'api/Dictionaries/GetDictTreeData',
async: false
}).responseText;
responseDictObjects = jQuery.parseJSON(responseDictObjects);
while (this.storeDict.getRootNode().firstChild) {
this.storeDict.getRootNode().removeChild(this.storeDict.getRootNode().firstChild);
}
this.storeDict.getRootNode().appendChild(responseDictObjects.Data);
Replace this.storeDict with your store reference.
In my case:
JSON.stringify(responseDictObjects.Data)
returns
"[{"id":8,"text":"kkk","leaf":false,"expanded":true,"children":null},{"id":17,"text":"ttttt","leaf":false,"expanded":true,"children":null},{"id":22,"text":"gggg","leaf":false,"expanded":true,"children":null},{"id":23,"text":"qqq","leaf":false,"expanded":true,"children":null},{"id":24,"text":"fff","leaf":false,"expanded":true,"children":null},{"id":27,"text":"fff","leaf":false,"expanded":true,"children":null},{"id":28,"text":"ggggggggggggggggggg","leaf":false,"expanded":true,"children":null},{"id":31,"text":"ttttttttttt666666666","leaf":false,"expanded":true,"children":null},{"id":32,"text":"ffffffffffffffffffff","leaf":false,"expanded":true,"children":null},{"id":33,"text":"kkkkkkkkkkkkk","leaf":false,"expanded":true,"children":null},{"id":35,"text":"7777777777","leaf":false,"expanded":true,"children":null},{"id":36,"text":"999999999999","leaf":false,"expanded":true,"children":null},{"id":37,"text":"iii","leaf":false,"expanded":true,"children":null}]"
I found another bug with TreePanel, previosly removed nodes appears after executing appendChild. So i started to use jquery tree plugin (dynatree). All you need is to create empty panel. And after render a panel, embed tree, in my case:
Create empty panel:
that.treePanel = Ext.create('Ext.panel.Panel', {
title: 'Records',
width: 350,
height: 400
});
After rendering panel you can refresh nodes whenever you want:
var that = this;
var responseDictObjects = $.ajax({
data: { Id: this.idDictionary },
dataType: "json",
type: "POST",
cache: false,
url: 'http://' + config.domain + '/' + 'api/Dictionaries/GetDictTreeData',
async: false
}).responseText;
responseDictObjects = jQuery.parseJSON(responseDictObjects);
var el = this.treePanel.getId();
if (this.treeDict == null) {
this.treeDict = $('#' + el).dynatree({
onActivate: function (node) {
that.treeDict.lastSelectedId = node.data.index;
},
children: []
});
}
this.treeDict.dynatree("getRoot").removeChildren(true);
this.treeDict.dynatree("getRoot").addChild(responseDictObjects.Data);

$tree.tree is not a function

I am generating a tree in plone using an add-on product called collective.virtualtreecategories . However, I keep getting a weird javascript error and the tree cannot be displayed.
On my browser's error console, I get the following:
$tree.tree is not a function
Here is the part of code that produces the error:
$tree.tree({
data: {
type: "json",
url: "##vtc-categories-tree.json",
async: false
},
lang: {
new_node: "New category"
},
rules: {
deletable: ["folder"],
renameable: ["folder"],
draggable: "none",
droppable: "none",
},
callback: {
beforechange: function(node, tree_obj) {
return before_change_node()
},
onselect: function(node, tree_obj) {
node_selected(node)
},
oncreate: function(node) {
jq(node).attr('rel', 'folder')
},
onrename: function(node, lang, tree_obj, rb) {
old_id = node.id // may be undefined (new node)
new_name = jq(node).children("a:visible").text();
// shared code. Server determines if creating/renaming by the old_name value
jq.ajax({
type: 'POST',
url: "vtc-category-added-renamed",
data: {
'category_path': selected_category(node),
'old_id': old_id,
'new_name': new_name
},
success: function(data) {
jq.jGrowl(data.msg, {
life: 1500
});
// set/change node id
if (data.result) {
node.id = data.new_id
}
},
dataType: 'json',
traditional: true
})
},
beforedelete: function(node, tree_obj) {
jq.ajax({
type: 'POST',
url: "vtc-category-removed",
data: {
'category_path': selected_category(node)
},
success: function(data) {
jq.jGrowl(data.msg, {
life: 3000
});
},
dataType: 'json',
traditional: true
});
return true;
}
}
});​
The complete code listing can be found HERE
Can someone help me fix this?
UPDATE:
I should perhaps add that, this was working before in a different setting. Now, I just recreated the project and thats when I got this error.

As far as I can tell from your code $tree isn't a function, its an element
on line 89 var $tree = jq('ul#VTCTree');
therefore I assume .tree() is a JQuery widget and isn't working as expected?
Just seen some of the comments and the updates. Have you checked the path/file inclusion of the tree plugin/widget?

On my browser's error console, I get the following:
if your browser is Internet Explorer, the extra comma that you have here
droppable: "none",
is a widely known problem.
Not a problem for Firefox, but will give unexpected results, like 3 elements in the following array. but length = 4
myArr = [1,2,3,,]
also, check this https://stackoverflow.com/a/5139232/982924

I had the same issue, even though I had jquery loaded and the jquery.filetree.min plugin loaded. I was missing the jquery UI js which is also required.