I am updating my session variables using Javascript.
Page->Javascript->Execute when page loads.
apex.server.process ( "Update Session", {
pageItems: "#P1_ITEM1, P1_ITEM2"
}, {
dataType: "text"
, success: function( pData ) {
//pData should contain VALID or INVALID - alert it
if ( pData === 'INVALID' ) {
// do something here when the result is invalid
alert('Invalid Data: Contact Admin:');
};
}
} );
}
I am using P1_ITEM1 and P1_ITEM2 to populate data in a region of the page. The problem is: the region which uses the session value seems to load before the execution of the JS code due to which older values of the items are used instead of the new value. Is there any way around it, so that the region loads only after the session values are updated?
Sorry but I can't add comment. Try to put proccess in Pre-Rendering section of the page(before Header, before regions...). You can try with condition on change of P1_ITEM1, P1_ITEM2 item to refresh region but the first solution should be enough.
Related
Im having issues with delete request, my post, get are working fine.
What am I doing wrong?
removeUser(id) {
axios.delete('https://jsonplaceholder.typicode.com/users' + id)
.then(function(response) {
const user = response.data;
this.users.splice(id, user);
});
if response.status === 204, then delete is succeed.
for the client, here is an axios example, notice there is a ' after users
destroy() {
return request.delete('/api/users/' + id)
}
for the server, here is an Laravel example:
if( $article->delete() ) {
return response()->json(null, 204);
} else {
abort(409);
}
I can see only 1 problem on the code you provided.
You're trying to modify the Vue instance $data users object by executing this.users.splice(id, user);. But you're inside the callback function and this no longer represents the Vue instance.
To fix this & make the users object actually modify after the response comes you'll need to do it like this :
removeUser(id) {
let that = this;
axios.delete('https://jsonplaceholder.typicode.com/users' + id)
.then(function(response) {
const user = response.data;
that.users.splice(id, user);
});
Now , I don't have any code from the back-end so I'll just make some assumptions :
The route might not be well defined > if you're using NodeJS then you should check your routes , it should look like this :
router.route('/users:id').delete(async function(req,res,next){ /* ... */ });
You might have a route problem because / is missing before the user value
1 hint : Again , if you're using NodeJS , you could use this inside your .delete route :
res.status(200).json({ errorCode : null , errorMessage : null , users : [] });
To see if you're receiving it on front-end.
I think you do need to append the trailing '/' to the URL, that way the URL is properly formed, such as "https://jsonplaceholder.typicode.com/users/123" (rather than "users123" at the end).
Aside from that, the first parameter to Array.prototype.splice is the position where item removal should begin. The second (optional) parameter, deleteCount, is the number of items to remove. Beyond deleteCount, you can pass a collection of objects which are to be inserted after the start position and after items have been removed.
You just need to find the object in your this.users array and remove it. If you want to use Array.prototype.splice for that, then you can use Array.prototype.findIndex to find the index of the user in the array then remove it:
// Find the index of the item to remove
const indexOfUserToRemove = this.users.findIndex(u => u.id === id);
// Call splice to remove the item
this.users.splice(indexOfUserToRemove, 1);
I'm trying to reload values when switching tab without reloading the page. I'm getting the value from a method.
mounted() {
this.getOriginalSpace();
},
methods: {
getOriginalSpace() {
retrieveQuotaSummary(this.value.organisation, this.value.dataCenter)
.then((result) => {
this.quotaSummary = result;
});
}
}
after that, I read the needed value out of quotaSummary like this (computed):
previouslyYarnCPU() {
return this.quotaSummary.currentAcceptedYarnRequest
? this.quotaSummary.currentAcceptedYarnRequest.cpu
: 0;
},
Then, when I switch tab, and call an other function in computed mode, I still have the same value which was loaded above. But when I refresh the page, then I get the correct (new value).
Can someone please help me, how I can get the latest values without refreshing the whole page?
It is difficult as I would need to see the rest of your code but in order to get values when they change you need to use a computed function. You can read more here
I am writing a kendo UI autocomplete widget. The requirement is EACH TIME when I type a letter after "minLength", the dataSource need to be dynamically loaded from dB EVERYTIME. One problem is that, when the dataSource load successfully in the first time, it stops loading data.
The code snippet is:
var data;
function getDataFromDb(){
// some code to grab dummyData from dB ...
return dummyData;
}
$("#someInputText").kendoAutoComplete({
minLength: 2,
dataTextField: "someField",
dataSource: getDataFromDb(),
filter: "startswith"
});
Thanks a lot.
More details on the post. In my situation, I don't use the readOption. The data comes from another ajax call like:
var data [];
//fire this ajax call when input string length comes to 4...
$.ajax({url: "some working url", success: function(result){
var data = result;
startKendoAutoComplete();
}
});
function startKendoAutoComplete(){
if( !$.isEmptyObject(data)) // set a breakPoint, have data
{
$("#inputText").kendoAutoComplete({
minLength: 4,
dataSource : data,
...
});
}
}
Also, the ajax call will be fired when the input string length comes to 4. However, the KendoAutoComplete doesn't start working....
Thanks a lot for your sugesstion.
If you init your dataSource with an array of object, your widget will work with this array only.
The first thing you'll have to create an dataSource object and set the serverFiltering property to true. Then, if you don't specify an url where the data will be fetched, you set you own transport.read function and from there you'll be able to implement your own logic. The read function will receive the readOption which will include all the relevant information to query tour data (top / skip / filter / sort ...). The readOptions will also provide a success function that should be used to return the value:
dataSource: {
serverFiltering: true,
transport: {
read: function (readOptions) {
readOptions.success(getDataFromDb(readOptions));
}
}
},
I am using extjs 4.1.1a for developing some application.
I had a form consisting of two combo-boxes and an item-selector.
Based on the value selected in first combo-box , the itemselector will load its data from database. This is working fine.
My problem is, if i reselect the first combo-box the new data will be displayed in itemselector along with previous data displayed in itemseletor .That is previous data displayed in itemselector will remain there itself.
for example: name "test1" consists of ids 801,2088,5000. on selecting test1 in firstcombobox itemselector must show output as below.
and if "test2" consists of ids 6090,5040. on selecting test2 in firstcombobox itemselector must show output as below.
problem is. for first time if i select "test1" from firstcombobox , output will come as expected. if i reselect "test2" from firstcombobox , output will come as below.
as you can see, previous data displayed (marked in red rectagle) remains there itself with new data displayed (marked with green rectangle).
I want for every reselection of first combobox, previously displayed data in itemselector to be erased before printing new data on itemselector.
How can I reset the itemselector for every reselection of first combobox?
You should remove all items from the store of the itemselector by the removeAll command. After that you should load the store of the itemselector.
itemselector.store.removeAll();
itemselector.store.load();
Any solutions above solve my problem.
i found solution from Sencha Forum.
https://www.sencha.com/forum/showthread.php?142276-closed-Ext-JS-4.0.2a-itemselector-not-reloading-the-store
in the itemselector.js file, change the line marked below.
populateFromStore: function(store) {
var fromStore = this.fromField.store;
// Flag set when the fromStore has been loaded
this.fromStorePopulated = true;
// THIS LINE BELOW MUST BE CHANGED!!!!!!!!!!!!
fromStore.loadData(store.getRange()); //fromStore.add(store.getRange());
// setValue waits for the from Store to be loaded
fromStore.fireEvent('load', fromStore);
},
You need to insert...
this.reset();
at the head of the function that is inserting the data.
As an example...
Ext.override( Ext.ux.ItemSelector, {
setValue: function(val) {
this.reset();
if (!val) return;
val = val instanceof Array ? val : val.split(this.delimiter);
var rec, i, id;
for (i = 0; i < val.length; i++) {
var vf = this.fromMultiselect.valueField;
id = val[i];
idx = this.toMultiselect.view.store.findBy(function(record){
return record.data[vf] == id;
});
if (idx != -1) continue;
idx = this.fromMultiselect.view.store.findBy(function(record){
return record.data[vf] == id;
});
rec = this.fromMultiselect.view.store.getAt(idx);
if (rec) {
this.toMultiselect.view.store.add(rec);
this.fromMultiselect.view.store.remove(rec);
}
}
}
});
are u got it?
when u select that combobox frist stoe of item selector is null after store load with ur pass the para meters
for example
store.load(null),
store.proxey.url='jso.php?id='+combobox.getrawvalue(),
store.load();
like that so when ur select a value in ur combobox that time ur used a listeners to ur combobox in that listners ur used above code , select ur some value in combobox that time frist store is get null after ur pass some values to json.php then store load with responce so that time old data is remove and new data load in that store
if u post ur code i will give correct code
I ran into the same issue with ExtJS 4.2.1. I got it to work by calling reload() on the data store and then setValue() with an empty string on the item selector in the data store's reload() callback.
Ext.create("Ext.form.field.ComboBox", {
// Other properties removed for brevity
listeners: {
change: function(field, newValue, oldValue, eOpts) {
Ext.getStore("ExampleStore").reload({
callback: function() {
Ext.getCmp("ExampleItemSelector").setValue("");
}
});
}
}
});
Ext.create("Ext.data.Store", {
storeId: "ExampleStore",
// Other properties removed for brevity
});
Ext.create("Ext.form.FormPanel", {
// Other properties removed for brevity
items:[{
xtype: "itemselector",
id: "ExampleItemSelector",
// Other properties removed for brevity
}]
});
For any folks that are curious, I'm fairly convinced there's a bug in the item selector's populateFromStore() function. When the function is called, it blindly adds all of the values from the bound store (store) to the internal store (fromStore). I suspect there should be a call to fromStore.removeAll() prior to the call to fromStore.add(). Here's the relevant code from ItemSelector.js.
populateFromStore: function(store) {
var fromStore = this.fromField.store;
// Flag set when the fromStore has been loaded
this.fromStorePopulated = true;
fromStore.add(store.getRange());
// setValue waits for the from Store to be loaded
fromStore.fireEvent('load', fromStore);
},
EDIT 12/18/2013
If you've configured any callback events on the item selector (e.g. change), you may want to disable the events temporarily when you call setValue(""). For example:
var selector = Ext.getCmp("ExampleItemSelector");
selector.suspendEvents();
selector.setValue("");
selector.resumeEvents();
I had the same problem and finally I decided to modify the extjs source code, not considering it a big issue as extjs itself its saying in the start of the file
Note that this control will most likely remain as an example, and not as a core Ext form
control. However, the API will be changing in a future release and so should not yet be
treated as a final, stable API at this time.
Based on that, as jstricker guessed (and sadly I didn't read and took me a while to arrive to the same conclusion), adding fromStore.removeAll() before fromStore.add() solves the problem.
Outside of the problem (but I think it can be interesting as well), additionally, I also added listConfig: me.listConfig in the MultiSelect configuration (inside createList), that way it's possible to format each item additional options (such as images, etc.) setting in the 'itemselector' the option listConfig as it's explained in the (irrealistic) documentation.
Need to reset the store used in ItemSelector that can be done by setting Empty object like below. Also need to call clearValue() method of ItemSelector component.
store.setData({});
ItemSelectorComponent.clearValue();
I create dojox.grid.datagrid and I fill content from array like on example last example on page. During time, I change value of that array in code. How to refresh content of that grid ? How to load new data from changed array ?
To change values in the grid, you will need to change the value in the grid's store. The grid data is bound to the store data, and the grid will update itself as needed.
So the key is to understand Dojo's data api and how stores work in Dojo. Rather than manipulating the data directly in the grid, manipulate it in the store.
Ideally, the store is your array that you manipulate as the application runs and you should not be needing to sync the array to the grid. Just use the ItemFileWriteStore as your data holder unless thats not possible.
Also, using the dojo data identity api makes it much simple to find items in the grid if that is possible. Assuming you know when an item is updated, deleted, or changed in your application you should be able to modify the grid store as needed when the action happens. This is definitely the preferred approach. If you can't do that you will have to do a general fetch and use the onComplete callback to manually sync your arrays which will be very slow and won't scale well, in which case you may as well just create a new store all together and assign it to the grid with grid.setStore(myNewStore)
Here is a fiddle with a basic create, update, and delete operation: http://jsfiddle.net/BC7yT/11/
These examples all take advantage of declaring an identity when creating the store.
var store = new dojo.data.ItemFileWriteStore({
data: {
identifier : 'planet',
items: itemList
}
});
UPDATE AN EXISITNG ITEM:
//If the store is not in your scope you can get it from the grid
var store = grid.store;
//fetchItemByIdentity would be faster here, but this uses query just to show
//it is also possible
store.fetch({query : {planet : 'Zoron'},
onItem : function (item ) {
var humans = store.getValue(item, 'humanPop');
humans += 200;
store.setValue(item, 'humanPop', humans);
}
});
INSERT A NEW ITEM:
store.newItem({planet: 'Endron', humanPop : 40000, alienPop : 9000});
} catch (e) {
//An item with the same identity already exists
}
DELETE AN ITEM:
store.fetchItemByIdentity({ 'identity' : 'Gaxula', onItem : function (item ) {
if(item == null) {
//Item does not exist
} else {
store.deleteItem(item);
}
}});
The following code snippet can be used to update the grid:
var newStore = new dojo.data.ItemFileReadStore({data: {... some new data ...});
var grid = dijit.byId("gridId");
grid.setStore(newStore);
EDIT:
Dogo data grid reference guide (add/remove rows example, updating grid data examples )
(I suppose you already have a working grid and you want to completely change the grid's store)
Create a new datastore with your new value :
dataStore = new ObjectStore({ objectStore:new Memory({ data: data.items }) });
(data is the reponse from an ajax request for me)
Change your grid's store with the new one :
grid.store = dataStore;
Render :
grid.render();
This Will update Grid Store and refresh the View of the Grid in latest Version of Dojo 1.9
grid.store = store;
grid._refresh();
I had a server-side filtered EnhancedGrid, which was refreshing happily by changing the store, and shown in the other answers.
However I had another EnhancedGrid that would not refresh when a filter was applied. It may have been to do with the fact it was filtered client side (but data still coming from server using JsonRest store), but I don't really know the cause. Eitherway, the solution was to refresh with the following code:
grid.setFilter(grid.getFilter());
It's hacky and strange, but if it all else fails...
with this i can update a specifi row. this example is for a treegrid.
var idx = this.treeGrid.getItemIndex(item);
if(typeof idx == "string"){
this.treeGrid.updateRow(idx.split('/')[0]);
}else if(idx > -1){
this.treeGrid.updateRow(idx);
}