Is there any way to get the next item in model in ember.js?
something like:
var nextObjectAfterIdOne = this.store.getById(App.Model, '1').get('nextObject')
I came across this answer but it seems a bit hacky, and the IDs in my application aren't necessarily sequential, and the items are ordered by a different attribute.
Any ideas?
I'm not sure it's the good way to do it but at least it should work. Try to iterate over your list of item and once you find the current id, the next iteration will give you the next item.
var list = this.store.all(App.Model);
var id = 2;
var found = false;
var itemFound = undefined;
list.forEach(function(item, i) {
if (found) {
itemFound = item;
return true;
}
if (item.get('id') == id) found = true;
});
This has not been tested but you can try it.
Related
I have a code working good, but i am trying to do an enhancement
https://trycf.com/gist/5fdbccd52121856991e6fe3f82307d34/lucee5?theme=monokai
in the above, i am trying if the deleted item in list is IN, it should also delete the other item starting with I letter
The code is looping for the list elements and doing a match to detect and delete the element
Source
<cfscript>
i = 'AS,AK,SK,SB,IN,IP';
Y = 'IN';
local.X = [];
listEach(I, function(value, index) {
if (!listFindNoCase(Y, value)) {
arrayAppend(X, value);
}
});
dump(x);
</cfscript>
You can do that by checking before if the list contains your element using listFindNoCase, then using listFilter to filter the items you do not want in your new list, something like this:
<cfscript>
originalList = 'AS,AK,SK,SB,IN,IP';
needle = 'IN,AS';
newList = originalList;
listEach(needle, function(needle) {
if (listFindNoCase(newList, needle)) {
newList = listFilter(newList, function(value) {
return lcase(left(value, 1)) != lcase(left(needle, 1));
});
}
});
dump(newList);
</cfscript>
I have a google sheet where people submit tasks they are working on and they'll submit a status update which is either 'in progress' or 'complete' for let's say task A. Task A is in column D[4] and Status is in column E[5]. I'm trying to get this code to only delete the 'in progress' row for Task A when there is duplicate Task A with the status being 'Complete'. This works for identifying the duplicate and removes the duplicate rows in order, but I'm not sure how to get it to only delete duplicate 'Task A' 'In Progress' rows when there is a 'Task A' 'Complete' row. Any help would be much appreciated!
function removeDuplicates() {
var sheet = SpreadsheetApp.getActiveSpreadsheet().getSheetByName("Sheet2");
var data = sheet.getDataRange().getValues();
var newData = [];
for (i in data) {
var row = data[i];
var duplicate = false;
for (j in newData) {
if(row[3] == newData[j][3]){
duplicate = true;
}
}
if (!duplicate) {
newData.push(row);
}
}
sheet.clearContents();
sheet.getRange(1, 1, newData.length, newData[0].length).setValues(newData);
}
I would try
function removeDuplicates()
{
var sheet = SpreadsheetApp.getActiveSpreadsheet().getSheetByName("test");
var dataRange = sheet.getDataRange();
var data = dataRange.getValues();
var indexOfStatusColumn = 4;
var newData = [];
data.forEach(function (row, rowI){
var isDuplicate = false
if (newData.length)
newData.forEach(function (dup, dupI)
{
if (dup[3] == row[3])
{
if (row[indexOfStatusColumn] == "Complete" && dup[indexOfStatusColumn] != "Complete")
newData[dupI][indexOfStatusColumn] = "Complete";
isDuplicate = true;
return (false);
}
})
if (!isDuplicate)
newData.push(row);
});
dataRange = sheet.getRange(2, 1, dataRange.getLastRow() - 1, dataRange.getLastColumn());
dataRange.clearContent();
sheet.getRange(1, 1, newData.length, newData[0].length).setValues(newData);
}
few things
I use forEach()loop it's more efficient
break loop by returning falseto avoid parsing trough all your newDatauselessly
when I find a duplicate I perform some of this actions
Check if duplicate is Complete on data and not on newData if so
change the value in newDatato "Complete" this way it will keep the complete status (be careful if there's different datas on both rows it will probably twist datas).
also use clearContent() from a range to avoid removing all the content of the sheet but only a specific portion of it. Here I've rebuilded it to keep the header
REFERENCES
forEach()
Tanaike benchmark
clearContent()
I've been cracking my head for the last several days, trying to understand what am I doing wrong.
I'm implementing an infrastructure of lists for my app, which can include paging/infinite scroll/filtering/grouping/etc. The implementation is based on extending controllers (not array controllers, I want to be Ember 2.0 safe), with a content array property that holds the data.
I'm using Ember.computed.sort for the sorting, and it's working, but i have a strange behavior when i try to change the sorter. the sortedContent is not updating within the displayContent, even though the sortingDefinitions definitions are updated.
This causes a weird behaviour that it will only sort if I sort it twice, as if the sorting was asynchronous.
I am using Ember 1.5 (but it also happens on 1.8)
(attaching a snippet of code explaining my problem)
sortingDefinitions: function(){
var sortBy = this.get('sortBy');
var sortOrder = this.get('sortOrder') || 'asc';
if (_.isArray(sortBy)) {
return sortBy;
}
else {
return (sortBy ? [sortBy + ':' + sortOrder] : []);
}
}.property('sortBy', 'sortOrder'),
sortedContent: Ember.computed.sort('content', 'sortingDefinitions'),
displayContent: function() {
var that = this;
var sortBy = this.get('sortBy');
var sortOrder = this.get('sortOrder');
var list = (sortBy ? this.get('sortedContent') : this.get('content'));
var itemsPerPage = this.get('itemsPerPage');
var currentPage = this.get('currentPage');
var listItemModel = this.get('listItemModel');
return list.filter(function(item, index, enumerable){
return ((index >= (currentPage * itemsPerPage)) && (index < ((currentPage + 1) * itemsPerPage)));
}).map(function(item) {
var listItemModel = that.get('listItemModel');
if (listItemModel) {
return listItemModel.create(item);
}
else {
return item;
}
});
}.property('content.length', 'sortBy', 'sortOrder', 'currentPage', 'itemsPerPage')
Edit:
fixed by adding another dependency to the displayContent (sortedContent.[]):
displayContent: function() {
....
}.property('content.length', 'sortBy', 'sortOrder', 'currentPage', 'itemsPerPage' , 'sortedContent.[]')
Your sort function is watching the whole array sortingDefinitions instead of each element in the array. If the array changed to a string or some other variable it would update but not if an element in the array changes.
To ensure your computed property updates correctly, add a .[] to the end of the array so it looks like this: Ember.computed.sort('content', 'sortingDefinitions.[]')
I've implemented an on item:saved handler per this question I posted here: Run code when Publishing Restriction is saved in Sitecore
When an author changes the publishing restrictions on a page, I iterate through each of the related components for that page, updating the publishing restrictions on each to match the page item. This works, but some pages have 150 or so components and the process of editing each is taking for ever. The result is that the UI hangs for up to 5 minutes while it runs. Not good.
I'm doing this:
compItem.Editing.BeginEdit();
compItem.Publishing.ValidFrom = pageItem.Publishing.ValidFrom;
compItem.Publishing.ValidTo = pageItem.Publishing.ValidTo;
compItem.Editing.EndEdit(true, true);
I've played around with the updateStatistics and silent arguments. If do it "silent" the UI responds, but of course it still takes forever for the update to run in the background which could cause issues, since there will be a window of time where the pub restrictions between the page and components would be out of sync.
Any thoughts on why updating 150 items is so slow? Any ways to speed it up?
Here's the full code:
public void OnItemSaved(object sender, EventArgs args)
{
Item item = Event.ExtractParameter(args, 0) as Item;
if (item == null)
return;
//if it's a page, then update the page component templates with the same publish restrictions.
if(this.HasBaseTemplate(item, GlobalId.PageBaseTemplate))
{
ItemChanges itemChanges = Event.ExtractParameter(args, 1) as ItemChanges;
if (itemChanges != null &&
(itemChanges.FieldChanges.Contains(__Validfrom) || itemChanges.FieldChanges.Contains(__Validto)))
{
foreach (Item i in this.GetPageComponents(item))
{
try
{
i.Editing.BeginEdit();
i.Publishing.ValidFrom = item.Publishing.ValidFrom;
i.Publishing.ValidTo = item.Publishing.ValidTo;
i.Editing.EndEdit(true, false);
}
catch(Exception ex)
{
i.Editing.CancelEdit();
}
}
}
}
}
protected IEnumerable<Item> GetPageComponents(Item page)
{
var links = page.Links.GetAllLinks(false, true);
var foundIds = new HashSet<ID>();
var foundComponentIds = new HashSet<ID>();
var componentIds = new List<ID> { page.ID };
using (var context = ContentSearchManager.GetIndex("sitecore_master_index").CreateSearchContext())
{
while (componentIds.Any())
{
var query = context.GetQueryable<LinkSearchResultItem>();
var predicate = PredicateBuilder.False<LinkSearchResultItem>();
foreach (var id in componentIds)
{
predicate = predicate.Or(sri => sri.ItemId == id);
}
query = query.Where(predicate);
var results = query.GetResults().Hits.Select(h => h.Document);
foundIds.Add(componentIds);
componentIds.Clear();
componentIds.AddRange(results
.Where(sri => (sri.Path.StartsWith("/sitecore/content/BECU/Global/Page Components/", StringComparison.InvariantCultureIgnoreCase) || sri.ItemId == page.ID) && sri.Links != null)
.SelectMany(sri => sri.Links)
.Except(foundIds));
foundComponentIds.Add(results
.Where(sri => (sri.Path.StartsWith("/sitecore/content/BECU/Global/Page Components/", StringComparison.InvariantCultureIgnoreCase)))
.Select(sri => sri.ItemId));
}
}
var database = page.Database;
return foundComponentIds.Select(id => database.GetItem(id)).Where(i => i != null);
}
I would recommend that you try wrapping your edit code with a Sitecore.Data.BulkUpdateContext as follows
...
using(new Sitecore.Data.BulkUpdateContext())
{
foreach (Item i in this.GetPageComponents(item))
{
try
{
i.Editing.BeginEdit();
i.Publishing.ValidFrom = item.Publishing.ValidFrom;
i.Publishing.ValidTo = item.Publishing.ValidTo;
i.Editing.EndEdit(true, false);
}
catch(Exception ex)
{
i.Editing.CancelEdit();
}
}
}
...
When an item is updated in Sitecore, several other background processes and events as a result of updating the item. Such an example is indexing which will slow down the update of a large number of items at once.
The BulkUpdateContext will disable most of these events and processes until the update is complete thereby hopefully speeding up the update of your items.
Note: I have yet to use this BulkUpdateContext myself but I found several posts including this Stackoverflow question where it claims that the BulkUpdateContext only improves item creation speed, not updates. However that may only apply to the particular version of Sitecore that was being used at the time. It may may no longer be the case with new versions of Sitecore (7.X and 8), so I think it is still worth a try.
I have a Phone model. I want to cache all phones on my application:
cachePhones : function () {
this.set('phones', this.Phone.find());
},
And get the countries for which I have available phones:
getCountries : function () {
var phones = this.get('phones.content');
var countries = new this.dataSet(), country;
console.log('phones=%o', phones.length);
for (var index = 0, length = phones.length; index < length; index++) {
country = phones[index].record.get('country');
console.log('Adding %o', country);
countries.add(country, true);
}
console.log('countries=%o', countries.keys());
return countries.keys();
},
(dataSet is just a set implementation in javascript)
I am not sure this is the right way to walk the ArrayController:
do I really need to access the content?
do I really need to access record?
This feels like hacking around my way in the ember internals. I have tried before this:
var phones = this.get('phones');
var countries = new this.dataSet(), country;
for (var index = 0, length = phones.length; index < length; index++) {
country = phones[index].country;
countries.add(country, true);
}
But it was not working at all. What is the canonical way of walking an ArrayController?
Have you tried something like this? Normally you should always be fine with using the functional methods Ember offers for its collections.
var phones = this.get('phones');
var countries = new this.dataSet(), country;
phones.forEach(function(phone, index){
country = phone.get("country");
countries.add(country, true);
});
Besides #mavilein correct answer one thing worth mentioning is that if you have a model like App.Phone then after you do App.Phone.find() and the records are fetched, your Store has already a cache which you can consult with App.Phone.all() this will not make another request but gives you the records available in the Store.
Hope it helps.