Ember Data date binding - jquery-plugins

I am using ember-data and there is an inbuilt date type object. I am hooking this up to the date picker(built on Twitter bootstrap components). The issue is that I created a date attribute in the input tag to store the date object. The date object is getting store as a long string. This has to somehow get parsed into a date object and then get stored into the App.store. Where do I do this conversion. This is what I have done so far.
App.DatePicker = Ember.View.extend({
classNames: ['ember-text-field','input-small'],
tagName: "input",
attributeBindings: ['data','value','format','readonly','type','size'],
size:"16",
type: "text",
format:'mm/dd/yyyy',
value:function(){
var date = this.get('data');
if(date)
return date.format(this.get('format'));
else
return "";
}.property('data'),
data:null,
didInsertElement:function(){
this.$().datepicker({
format:this.get(this.get('format'))
}).on('changeDate', function(ev){
console.log(ev.date);
console.log(ev.target);
ev.target.setAttribute('data',ev.date);
});
}
});
I am using it in the view template like this
{{view App.DatePicker dataBinding="staff.emp_edate" format="mm/dd/yyyy"}}
When the date attribute is set when the date is changed, the date attribute is getting changed which is binded to the staff.emp_edate. Unfortunately the staff.emp_edata is not getting changed.
Any pointers will be of great help.

Try the following:
Fiddle: http://jsfiddle.net/ppanagi/9rCBL/
App.DatePicker = Ember.View.extend({
// ... leave the rest as is
didInsertElement: function(){
var self = this;
var onChangeDate = function(ev) {
self.set('data', ev.date);
};
var format = this.get('format');
this.$().datepicker({ format: format })
.on('changeDate', onChangeDate);
}
});

Related

Datepicker in Kendo Grid Editpopup not show the last date

I'm using Kendo Grid with editpopup and I have a DateTime field in my Model.
If I set the Max property to my datepicker, last date in datepicker not shown in editpopup field at the time of edit.
If i use below 14 its works like charm.
Code:
#Html.Kendo().DatePickerFor(m => m.DateOfBirth).Max(DateTime.Today.AddYears(-18))).HtmlAttributes(new { placeholder = "dd/mm/yyy", type = "date", #class = "datePicker" })
But Kendo Grid shows properly.Insert Updated Working properly with last date too.
Note:
I'm using MVC with Razor syntax.
Thanks in advance!
I added culture to my code.it works like charm.
#Html.Kendo().DatePickerFor(m => m.DateOfBirth).Max(DateTime.Now.AddYears(-18)).HtmlAttributes(new { placeholder = "dd/mm/yyy", type = "date", #class = "datePicker" }).Culture("en-AU")
And added one more function to set the date at the time of edit.
Kendo Grid :
.Events(events => events.Edit("dateformat"))
Jquery Function
function dateformat(e) {
if(!e.model.isNew())
{
var data =e.model;
var dob=data.DateOfBirth;
if(dob!=null)
{
var parsedDate= kendo.parseDate(dob, "dd/MM/yyyy");
var finalDate = kendo.toString(parsedDate, "d");
var datepicker = $("#DateOfBirth").data("kendoDatePicker");
if(finalDate!=null)
{
datepicker.value(finalDate);
}
}
}

Kendo UI: Excel Export not working correctly after datasource refreshing data

I have a Grid, when users click a button, it gets some parameters and refresh datasource:
var grdUP = $("#weblogGrid").data("kendoGrid");
grdUP.dataSource.transport.options.read.url = url; // new url
//Read data source to update
grdUP.dataSource.read();
it works fine. the new data shows in the grid. And the grid has another button, which will export the data to excel. I'm using below code (also tried the built-in button):
var grid = $("#weblogGrid").data("kendoGrid");
grid.saveAsExcel();
it actually exports the data to excel file.
However, it always exports the initial data in the grid, not the data user refreshed.
For example, when the grid first shows up, it has 10 rows data. After refresh, it has 5 rows data. Now, if export, it still exports 10 rows data although the data in grid is different.
Is this a Bug? or, maybe I did something wrong in refresh grid?
Thanks
===============================
edit to clarify something
Thanks. currently, I got new data using:
var url = '/WeblogReport/GetWebLogList?fromDate=' + fromDate + '&toDate=' + toDate;
var grdUP = $("#myGrid").data("kendoGrid");
//Set url property of the grid data source
grdUP.dataSource.transport.options.read.url = url;
//Read data source to update
grdUP.dataSource.read();
So I changed to:
// get value of date
....
$.ajax({
type: "GET",
dataType: "json",
url: "/WeblogReport/GetWebLogList",
data: { FromDate: fromDate, ToDate: toDate },
success: function (data) {
alert(data);
var grid = $("#myGrid").data("kendoGrid");
grid.dataSource.data(data);
grid.refresh();
}
});
Somehow, it does not show the new data. Any suggestions?
Thank you very much.
add more clarification
Here is in the Json call.
success: function (data) {
var newdata = [{ "UserName": "username", "ClientIP": "1.1.1.1"}];
$("#myGrid").data("kendoGrid").dataSource.data(newdata);
$("#myGrid").data("kendoGrid").refresh();
//$("#myGrid").data("kendoGrid").saveAsExcel();
}
Set both of the following fields to make Excel export work:
grid.dataSource.transport.options.read.url = url;
grid.options.dataSource.transport.read.url = url;
check this:
http://jsfiddle.net/Sowjanya51/o8cw3vj8/
$('#grid1').data('kendoGrid').dataSource.data(newdata);
$('#grid1').data('kendoGrid').refresh();
You need to update the dataSource and reload the grid,otherwise the grid dataSource will still have reference to old data even though UI displays the new data.
Just set the "allPages" option on your grid to "True". like so :
excel: {
fileName: "Export.xlsx",
filterable: true,
allPages: true
},
Your original solution should be fine if you refresh the grid after you read from the data source.
var grdUP = $("#weblogGrid").data("kendoGrid");
grdUP.dataSource.transport.options.read.url = url; // new url
//Read data source to update
grdUP.dataSource.read();
//add this line to refresh the active data set in the grid
grdUP.refresh();
I had run into the same issue and this solved it for me. The only difference between your approach and mine is that you're changing the data source's read URL, whereas I was changing the data parameters for the read method. Shouldn't make any difference, but I'll mention that just in case.

How to change columns set of kendo grid dynamically

I am trying to change the columns collection of my Kendo grid in the below way.
var grid = $("#grid").data("kendoGrid");
$http.get('/api/GetGridColumns')
.success(function (data) {
grid.columns = data;
})
.error(function (data) {
console.log(data);
});
This is changing the column collection but not reflecting immediately in my grid. But when I try to perform some actions in the grid (like grouping), then my new column set is appearing.
Please let me know how can I achieve this.
Regards,
Dilip Kumar
You can do it by setting the KendoUI datasource, destroy the grid, and rebuild it
$("#load").click(function () {
var grid = $("#grid").data("kendoGrid");
var dataSource = grid.dataSource;
$.ajax({
url: "/Home/Load",
success: function (state) {
state = JSON.parse(state);
var options = grid.options;
options.columns = state.columns;
options.dataSource.page = state.page;
options.dataSource.pageSize = state.pageSize;
options.dataSource.sort = state.sort;
options.dataSource.filter = state.filter;
options.dataSource.group = state.group;
grid.destroy();
$("#grid")
.empty()
.kendoGrid(options);
}
});
});
here you can just do this :
var options = grid.options;
options.columns = state.columns;
where you can retrieve the columns in a session or in a db
This jsfiddle - Kendo UI grid dynamic columns can help you - using kendo.observable.
var columns = data;
var configuration = {
editable: true,
sortable: true,
scrollable: false,
columns: columns //set the columns here
};
var grid = $("#grid").kendoGrid(configuration).data("kendoGrid");
kendo.bind($('#example'), viewModel); //viewModel will be data as in jsfiddle
For the ones who are using Kendo and Angular together, here is a solution that worked for me:
The idea is to use the k-rebind directive. From the docs:
Widget Update upon Option Changes
You can update a widget from controller. Use the special k-rebind attribute to create a widget which automatically updates when some scope variable changes. This option will destroy the original widget and will recreate it using the changed options.
Apart from setting the array of columns in the GridOptions as we normally do, we have to hold a reference to it:
vm.gridOptions = { ... };
vm.gridColumns = [{...}, ... ,{...}];
vm.gridOptions.columns = vm.gridColumns;
and then pass that variable to the k-rebind directive:
<div kendo-grid="vm.grid" options="vm.gridOptions" k-rebind="vm.gridColumns">
</div>
And that's it when you are binding the grid to remote data (OData in my case). Now you can add or remove elements to/from the array of columns. The grid is going to query for the data again after it is recreated.
When binding the Grid to local data (local array of objects), we have to somehow postpone the binding of the data until the widget is recreated. What worked for me (maybe there is a cleaner solution to this) is to use the $timeout service:
vm.gridColumns.push({ ... });
vm.$timeout(function () {
vm.gridOptions.dataSource.data(vm.myArrayOfObjects);
}, 0);
This has been tested using AngularJS v1.5.0 and Kendo UI v2016.1.226.
I'm use this code for change columns dynamic:
kendo.data.binders.widget.columns = kendo.data.Binder.extend({
refresh: function () {
var value = this.bindings["columns"].get();
this.element.setOptions({ columns: value.toJSON });
this.element._columns(value.toJSON());
this.element._templates();
this.element.thead.empty();
this.element._thead();
this.element._renderContent(this.element.dataSource.view());
}
});
Weddin
Refresh your grid
.success(function (data) {
grid.columns = data;
grid.refresh();
})
Here is what i use
var columns = [];//add the columns here
var grid = $('#grid').data('kendoGrid');
grid.setOptions({ columns: columns });
grid._columns(columns);
grid._templates();
grid.thead.empty();
grid._thead();
grid._renderContent(grid.dataSource.view());
I think a solution for what you are asking is to call the equivalent remote DataSource.read() method inside of the function. This is what I used to change the number of columns dynamically for local js data.
$("#numOfValues").change(function () {
var columnsConfig = [];
columnsConfig.push({ field: "item", title: "Metric" });
// Dynamically assign number of value columns
for (var i = 1; i <= $(this).val(); i++) {
columnsConfig.push({ field: ("value" + i), title: ("201" + i) });
}
columnsConfig.push({ field: "target", title: "Target" });
columnsConfig.push({ command: "destroy", title: "" });
$("#grid").data("kendoGrid").setOptions({
columns: columnsConfig
});
columnDataSource.read(); // This is what reloads the data
});
Refresh the grid
$('#GridName').data('kendoGrid').dataSource.read();
$('#GridName').data('kendoGrid').refresh();
Instead of looping through all the elements. we can remove all the data in the grid by using a single statement
$("#Grid").data('kendoGrid').dataSource.data([]);
If your grid is simple and you don't need to configure special column-specific settings, then you can simply omit the columns argument, as suggested in the API reference.
Use autogenerated columns (i.e. do not set any column settings)
... and ....
If this [column] setting is not specified the grid will create a column for every field of the data item.
var newDataSource = new kendo.data.DataSource({data: dataSource}); $("#grid").data("kendoGrid").setDataSource(newDataSource);
$("#grid").data("kendoGrid").dataSource.read();
After fighting this for a day and seeing hints in this thread that Kendo had simplified this problem, I discovered you can just use setOptions with a single property.
.success(function (data) {
grid.setOptions({
columns: data,
});
})
Grid Set Options

jQuery tablesorter plugin secondary "hidden" sorting

I'm using the jQuery tablesorter plugin and I have a column that contains name of month and year like this
April, 1975
January, 2001
I would like to sort this column as if it were a date column. As I understand it, it is possible to sort the column with some other 'hidden' value, but I just can't seem to find the documentation for that feature. Any help out there?
Update
This fork http://mottie.github.com/tablesorter/docs/index.html of the tablesorter had just what I needed; the ability to store the value to sort by in an attribute, worked really great.
Just using the textExtraction function. Set data-sort-value on your TDs. Defaults to normal text if it's not present.
$(".sort-table").tablesorter({
textExtraction: function(node) {
var attr = $(node).attr('data-sort-value');
if (typeof attr !== 'undefined' && attr !== false) {
return attr;
}
return $(node).text();
}
});
I have a fork of tablesorter that allows you to write a parser that can extract data attributes from the table cell as well as assign specific textExtraction for each column.
$(function(){
$.tablesorter.addParser({
// set a unique id
id: 'myParser',
is: function(s) {
// return false so this parser is not auto detected
return false;
},
format: function(s, table, cell, cellIndex) {
// get data attributes from $(cell).attr('data-something');
// check specific column using cellIndex
return $(cell).attr('data-something');
},
// set type, either numeric or text
type: 'text'
});
$('table').tablesorter({
headers : {
0 : { sorter: 'myParser' }
}
});
});
This is now a STANDARD FEATURE of tablesorter, though it's undocumented for some reason. If you open the file https://github.com/christianbach/tablesorter/blob/master/jquery.tablesorter.js and look at the line # 307 you'll see it supports the "data-sort-value" attribute.
Usage:
<td data-sort-value="42">Answer to the question</td>
It's a bit of a hack (OK, it's a total hack), but if you set the parser for the column to 'text', and pre-fix your pretty output with the string you really want to sort on within a hidden span it will sort correctly.
You can set the parser on a column with the headers option, e.g. to set the parser on the first and second columns to 'text' you would set the following:
headers: {0: {sorter: 'text'}, : {sorter: 'text'}
To do this trick with dates, you can use the ISO8601 date format which sorts lexically. JS's Date objects can generate ISO8601 date strings via the toISOString() function.
Given the CSS:
span.hidden{
display:none;
}
A sample cell in the table would look like this:
<td><span class="hidden">2015-04-18T23:48:33</span>19 April 2015</td>
Not the prettiest code in the world, but it does work.
I am using
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jqueryui/1.12.1/jquery-ui.min.js"></script>
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/jquery.tablesorter/2.29.0/js/jquery.tablesorter.min.js"></script>
Working with data-text
<td data-text="42">Answer to the question</td>
Not Working with data-sort-value
<td data-sort-value="42">Answer to the question</td>
You need to write your own parser. Your parser might end up looking something like:
var months = {'January':1,'February':2, ...};
$.tablesorter.addParser({
id: 'myDate',
is: function(s) { return false; },
format: function(s) {
var x = s.split(', ');
return x[1]+'-'+months[x[2]];
},
type: 'numeric'
});
Not tested, but general idea.

MVC: Set value in autocomplete on Edit

In our MVC application we use jQuery autocomplete control on several pages. This works fine on Create, but I can't make it work on Edit.
Effectively, I don't know how to make the autocomplete controls preload the data from model and still behave as an autocomplete in case the user wants to change the value.
Also how can I make sure that the value is displayed in the same format that is used in Create calls?
All our autocomplete controls have corresponding controllers and all parse Json results.
Let's Try this! Alright Do this:
Suppose you had a list of countries you needed to filter
Auto Complete knows how to some default things by default but suppose you really wanted CountryName and also you know every keypress does an ajax call to the URL you specify.
Create an action method like so:
public ActionResult LookupCountry(string q, int limit)
{
var list = GetListOfCountries(q, 0, limit);
var data = from s in list select new {s.CountryName};
return Json(data);
}
Here is the Jquery:
$(document).ready( function() {
$('#txtCountryName').autocomplete('<%=Url.Action("LookupCountry", "MyController") %>', {
dataType: 'json',
parse: function(data) {
var rows = new Array();
for(var i=0; i<data.length; i++){
rows[i] = { data:data[i], value:data[i].CountryName, result:data[i].CountryName};
}
return rows;
},
formatItem: function(row, i, n) {
return row.CountryName;
},
width: 300,
mustMatch: true,
});
});
Here is the Html
<html><head></head><body>#Html.TextBox("txtCountryName",Model.CountryName)</body></html>
Basically, The magic is in the call to LookUpCountry
The GetCountriesList(string query, int startindex, int limit)
Returns MyCountries.Where(c => c.CountryName.SubString(startindex, limit).Contains(query)).ToList();
So you are making your own trimming function because JQuery has no idea what CountryName is or how to trim it. How ever if it was a javascript object I am not quite sure but do
var jsonString = #Html.GetListOfCountries() //Or Model.Countries.ToJSONString()
var json = JSON.stringify(jsonString); //also JSON.Parse(jsonString) if stringify won't work
which would return the necessary countries as a Html Helper Extension method. And perhaps as a list of javascript objects it would be smart enough to handle it that way in it's native language. However the first approach works for me.

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