(was not sure what to have as a title, so if you have a better suggestion, feel free to come up with one - I will correct)
I am working on an angular application where I have some menues and a search result list. I also have a document view area.
You can sort of say that the application behaves like an e-mail application.
I have a few controllers:
DateCtrl: creates a list of dates so the users can choose which dates they want to see posts from.
SourceCtrl: Creates a list of sources so the user can choose from which sources he/she wants to see posts from.
ListCtrl: The controller populating the list. The data comes from an elastic search index. The list is updated every 10-30 seconds (trying to find the best interval) by using the $interval service.
What I have tried
Sources: I have tried to make this a filter, but a user clicks two checkboxes the list is not sorted by date, but on which checkbox the user clicked first.
If it is possible to make this work as a filter, I'd rather continue doing that.
The current code is like this, it does not do what I want:
.filter("bureauFilter", function(filterService) {
return function(input) {
var selectedFilter = filterService.getFilters();
if (selectedFilter.length === 0) {
return input;
}
var out = [];
if (selectedFilter) {
for (var f = 0; f < selectedFilter.length; f++) {
for (var i = 0; i < input.length; i++) {
var myDate = input[i]._source.versioncreated;
var changedDate = dateFromString(myDate);
input[i]._source.sort = new Date(changedDate).getTime();
if (input[i]._source.copyrightholder === selectedFilter[f]) {
out.push(input[i]);
}
}
}
// return out;
// we need to sort the out array
var returnArray = out.sort(function(a,b) {
return new Date(b.versioncreated).getTime() - new Date(a.versioncreated).getTime();
});
return returnArray;
} else {
return input;
}
}
})
Date: I have found it in production that this cannot be used as a filter. The list of posts shows the latest 1000 posts, which is only a third of all posts arriving each day. So this has to be changed to a date-search.
I am trying something like this:
.service('elasticService', ['es', 'searchService', function (es, searchService) {
var esSearch = function (searchService) {
if (searchService.field === "versioncreated") {
// doing some code
} else {
// doing some other type of search
}
and a search service:
.service('searchService', function () {
var selectedField = "";
var selectedValue = "";
var setFieldAndValue = function (field, value) {
selectedField = field;
selectedValue = value;
};
var getFieldAndValue = function () {
return {
"field": selectedField,
"value": selectedValue
}
};
return {
setFieldAndValue: setFieldAndValue,
getFieldAndValue: getFieldAndValue
};
})
What I want to achieve is this:
When no dates or sources are clicked the whole list shall be shown.
When Source or Date are clicked it shall get the posts based on these selections.
I cannot use filter on Date as the application receives some 3000 posts a day and so I have to query elastic search to get the posts for the selected date.
Up until now I have put the elastic-search in the listController, but I am now refactoring so the es-search happens in a service. This so the listController will receive the correct post based on the selections the user has done.
Question is: What is the best pattern or method to use when trying to achieve this?
Where your data is coming from is pretty irrelevant, it's for you to do the hook up with your data source.
With regards to how to render a list:
The view would be:
<div ng-controller='MyController as myCtrl'>
<form>
<input name='searchText' ng-model='myCtrl.searchText'>
</form>
<ul>
<li ng-repeat='item in myCtrl.list | filter:myCtrl.searchText' ng-bind='item'></li>
</ul>
<button ng-click='myCtrl.doSomethingOnClick()'>
</div>
controller would be:
myApp.controller('MyController', ['ElasticSearchService',function(ElasticSearchService) {
var self = this;
self.searchText = '';
ElasticSearchService.getInitialList().then(function(list) {
self.list = list;
});
self.doSomethingOnClick = function() {
ElasticSearchService.updateList(self.searchText).then(function(list) {
self.list = list;
});
}
}]);
service would be:
myApp.service('ElasticSearchService', ['$q', function($q) {
var obj = {};
obj.getInitialList = function() {
var defer = $q.defer();
// do some elastic search stuff here
// on success
defer.resolve(esdata);
// on failure
defer.reject();
return defer.promise();
};
obj.updateList = function(param) {
var defer = $q.defer();
// do some elastic search stuff here
// on success
defer.resolve(esdata);
// on failure
defer.reject();
return defer.promise();
};
return obj;
}]);
This code has NOT been tested but gives you an outline of how you should approach this. $q is used because promises allow things to be dealt with asynchronously.
I'm working on this codepen. The data comes from an array of objects, and I need to make a filter only by name and amount.
I have this code, but if you type a character in the search box, it only search by amount, and not by name too. In other words, if the you type 'warren' or '37.47' it has to return the same result, but doesn't works.
var filterFilter = $filter('filter');
$scope.filter = {
condition: ""
};
$scope.$watch('filter.condition',function(condition){
$scope.filteredlist = filterFilter($scope.expenses,{name:condition} && {amount:condition});
$scope.setPage();
});
You want to create a custom filter for your app.
directiveApp.filter("myFilter", function () {
return function (input, searchText) {
var filteredList = [];
angular.forEach(input, function (val) {
// Match exact name
if (val.name == searchText) {
filteredList.push(val);
}
// Match exact amount
else if (val.amount == searchText) {
filteredList.push(val);
}
});
input = filteredList;
return input;
};
});
You can write your logic in this filter and now use this filter to filter your list.
Update
You can just implement this filter to your custom filter pagination.
Here is the new version of your code. Codepen
List of updates on your code
Added new filter parameter to your ng-repeat attribute
ng-repeat="expense in filteredlist | pagination: pagination.currentPage : numPerPage : filter.condition"
...
Well, finally (based in the idea of Abhilash P A and reading the docs), I solved my question in this way:
var filterFilter = $filter('filter');
$scope.filter = {
condition: ""
};
$scope.$watch('filter.condition',function(condition){
$scope.filteredlist = filterFilter($scope.expenses,function(value, index, array){
if (value.name.toLowerCase().indexOf(condition.toLowerCase()) >= 0 ) {
return array;
}
else if (value.amount.indexOf(condition) >= 0 ) {
return array;
}
});
$scope.setPage();
});
The final codepen ! (awsome)
I Want to filter event by date but date is pass by normal input type="text" not kendo default datepicker.And display passing date in kendo schduler header But cant not change view date.This is my code.........
$scope.searchEventByDate = function (item) {
var scheduler = $("#scheduler").data("kendoScheduler");
scheduler.view().startDate(item.StartDate);
scheduler.view().endDate(item.EndDate);
scheduler.view(("day"));
$scope.scheduler.dataSource.read();
};
This is my filter param
parameterMap: function (options, operation) {
var popupheight = $(window).height() - 180 + 'px';
$scope.popupWraperForTryout = popupheight;
var scheduler = $("#scheduler").data("kendoScheduler");
if (searchCount != 0) {
if (operation === "read") {
return {
filterByPersonalEvent: $scope._filterParamObj.filterBypersonal,
filterBySignUpRequired: $scope._filterParamObj.filterBySingupRequired,
filterByPaidOrFree: $scope._filterParamObj.filterByPaid,
filterByEventStatus: $scope._filterParamObj.eventStatusId,
filterByEventType: $scope._filterParamObj.eventTypeId,
selectedTeam: $scope._filterParamObj.seasonTeamId,
filterByStartDate: scheduler.view().startDate(),
filterByEndDate: scheduler.view().endDate(),
OrgId: _orgId,
UserTimezone: global.userTimezoneOffset
}
}
}
},
I am so tired.This code is not change in view date.Please help me
Several issues here - the day view shows just one day; you can't set startDate and endDate - just date.
$scope.searchEventByDate = function (item) {
var scheduler = $("#scheduler").data("kendoScheduler");
//scheduler.view().startDate(item.StartDate);
//scheduler.view().endDate(item.EndDate);
scheduler.view("day");
// item.StartDate should be Date object - like scheduler.date(new Date("2013/6/6"));
scheduler.date(item.StartDate);
$scope.scheduler.dataSource.read();
};
If you need to set some explicit date range to filter - you can do it, but still you can't show more than just one day in day view.
$scope.searchEventByDate = function (item) {
var scheduler = $("#scheduler").data("kendoScheduler");
scheduler._myFilterStartDate = item.StartDate;
scheduler._myFilterEndDate = item.EndDate;
scheduler.view("day");
scheduler.date(item.StartDate);
$scope.scheduler.dataSource.read();
};
And in parameter map:
...
return {
filterByStartDate: scheduler.view().startDate(),
filterByEndDate: scheduler.view().endDate(),
myFilterStartDate: scheduler._myFilterStartDate,
myFilterEndDate: scheduler._myFilterEndDate,
OrgId: _orgId,
UserTimezone: global.userTimezoneOffset
};
...
I'm having an issue formatting an input field, while leaving the underlying scope variable non-formatted.
What I want to achieve is a text field to display currency. It should format itself on the fly, while handling wrong input. I got that working, but my problem is that I want to store the non-formatted value in my scope variable. The issue with input is that it requires a model which goes both ways, so changing the input field updates the model, and the other way around.
I came upon $parsers and $formatters which appears to be what I am looking for. Unfortunately they are not affecting each other (which might actually be good to avoid endless loops).
I've created a simple jsFiddle: http://jsfiddle.net/cruckie/yE8Yj/ and the code is as follows:
HTML:
<div data-ng-app="app" data-ng-controller="Ctrl">
<input type="text" data-currency="" data-ng-model="data" />
<div>Model: {{data}}</div>
</div>
JS:
var app = angular.module("app", []);
function Ctrl($scope) {
$scope.data = 1234567;
}
app.directive('currency', function() {
return {
restrict: 'A',
require: 'ngModel',
link: function (scope, element, attr, ctrl) {
ctrl.$formatters.push(function(modelValue) {
return modelValue.toString().replace(/\B(?=(?:\d{3})+(?!\d))/g, ',');
});
ctrl.$parsers.push(function(viewValue) {
return parseFloat(viewValue.replace(new RegExp(",", "g"), ''));
});
}
};
});
Again, this is just a simple example. When it loads everything looks as it's supposed to. The input field is formatted and the variable is not. However, when changing the value in the input field it no longer formats itself - the variable however gets updated correctly.
Is there a way to ensure the text field being formatted while the variable is not? I guess what I am looking for is a filter for text fields, but I can't seen to find anything on that.
Best regards
Here's a fiddle that shows how I implemented the exact same behavior in my application. I ended up using ngModelController#render instead of $formatters, and then adding a separate set of behavior that triggered on keydown and change events.
http://jsfiddle.net/KPeBD/2/
I've revised a little what Wade Tandy had done, and added support for several features:
thousands separator is taken from $locale
number of digits after decimal points is taken by default from $locale, and can be overridden by fraction attribute
parser is activated only on change, and not on keydown, cut and paste, to avoid sending the cursor to the end of the input on every change
Home and End keys are also allowed (to select the entire text using keyboard)
set validity to false when input is not numeric, this is done in the parser:
// This runs when we update the text field
ngModelCtrl.$parsers.push(function(viewValue) {
var newVal = viewValue.replace(replaceRegex, '');
var newValAsNumber = newVal * 1;
// check if new value is numeric, and set control validity
if (isNaN(newValAsNumber)){
ngModelCtrl.$setValidity(ngModelCtrl.$name+'Numeric', false);
}
else{
newVal = newValAsNumber.toFixed(fraction);
ngModelCtrl.$setValidity(ngModelCtrl.$name+'Numeric', true);
}
return newVal;
});
You can see my revised version here - http://jsfiddle.net/KPeBD/64/
I have refactored the original directive, so that it uses $parses and $formatters instead of listening to keyboard events. There is also no need to use $browser.defer
See working demo here http://jsfiddle.net/davidvotrubec/ebuqo6Lm/
var myApp = angular.module('myApp', []);
myApp.controller('MyCtrl', function($scope) {
$scope.numericValue = 12345678;
});
//Written by David Votrubec from ST-Software.com
//Inspired by http://jsfiddle.net/KPeBD/2/
myApp.directive('sgNumberInput', ['$filter', '$locale', function ($filter, $locale) {
return {
require: 'ngModel',
restrict: "A",
link: function ($scope, element, attrs, ctrl) {
var fractionSize = parseInt(attrs['fractionSize']) || 0;
var numberFilter = $filter('number');
//format the view value
ctrl.$formatters.push(function (modelValue) {
var retVal = numberFilter(modelValue, fractionSize);
var isValid = isNaN(modelValue) == false;
ctrl.$setValidity(attrs.name, isValid);
return retVal;
});
//parse user's input
ctrl.$parsers.push(function (viewValue) {
var caretPosition = getCaretPosition(element[0]), nonNumericCount = countNonNumericChars(viewValue);
viewValue = viewValue || '';
//Replace all possible group separators
var trimmedValue = viewValue.trim().replace(/,/g, '').replace(/`/g, '').replace(/'/g, '').replace(/\u00a0/g, '').replace(/ /g, '');
//If numericValue contains more decimal places than is allowed by fractionSize, then numberFilter would round the value up
//Thus 123.109 would become 123.11
//We do not want that, therefore I strip the extra decimal numbers
var separator = $locale.NUMBER_FORMATS.DECIMAL_SEP;
var arr = trimmedValue.split(separator);
var decimalPlaces = arr[1];
if (decimalPlaces != null && decimalPlaces.length > fractionSize) {
//Trim extra decimal places
decimalPlaces = decimalPlaces.substring(0, fractionSize);
trimmedValue = arr[0] + separator + decimalPlaces;
}
var numericValue = parseFloat(trimmedValue);
var isEmpty = numericValue == null || viewValue.trim() === "";
var isRequired = attrs.required || false;
var isValid = true;
if (isEmpty && isRequired) {
isValid = false;
}
if (isEmpty == false && isNaN(numericValue)) {
isValid = false;
}
ctrl.$setValidity(attrs.name, isValid);
if (isNaN(numericValue) == false && isValid) {
var newViewValue = numberFilter(numericValue, fractionSize);
element.val(newViewValue);
var newNonNumbericCount = countNonNumericChars(newViewValue);
var diff = newNonNumbericCount - nonNumericCount;
var newCaretPosition = caretPosition + diff;
if (nonNumericCount == 0 && newCaretPosition > 0) {
newCaretPosition--;
}
setCaretPosition(element[0], newCaretPosition);
}
return isNaN(numericValue) == false ? numericValue : null;
});
} //end of link function
};
//#region helper methods
function getCaretPosition(inputField) {
// Initialize
var position = 0;
// IE Support
if (document.selection) {
inputField.focus();
// To get cursor position, get empty selection range
var emptySelection = document.selection.createRange();
// Move selection start to 0 position
emptySelection.moveStart('character', -inputField.value.length);
// The caret position is selection length
position = emptySelection.text.length;
}
else if (inputField.selectionStart || inputField.selectionStart == 0) {
position = inputField.selectionStart;
}
return position;
}
function setCaretPosition(inputElement, position) {
if (inputElement.createTextRange) {
var range = inputElement.createTextRange();
range.move('character', position);
range.select();
}
else {
if (inputElement.selectionStart) {
inputElement.focus();
inputElement.setSelectionRange(position, position);
}
else {
inputElement.focus();
}
}
}
function countNonNumericChars(value) {
return (value.match(/[^a-z0-9]/gi) || []).length;
}
//#endregion helper methods
}]);
Github code is here [https://github.com/ST-Software/STAngular/blob/master/src/directives/SgNumberInput]
Indeed the $parsers and $formatters are "independent" as you say (probably for loops, again as you say). In our application we explicitly format with the onchange event (inside the link function), roughly as:
element.bind("change", function() {
...
var formattedModel = format(ctrl.$modelValue);
...
element.val(formattedModel);
});
See your updated fiddle for the detailed and working example: http://jsfiddle.net/yE8Yj/1/
I like binding to the onchange event, because I find it annoying to change the input as the user is typing.
The fiddle is using an old version of angular(1.0.7).
On updating to a recent version, 1.2.6, the $render function of the ngModelCtrl is never called, meaning if the model value is changed in the controller,
the number is never formatted as required in the view.
//check if new value is numeric, and set control validity
if (isNaN(newValAsNumber)){
ngModelCtrl.$setValidity(ngModelCtrl.$name+'Numeric', false);
}
Here is the updated fiddle http://jsfiddle.net/KPeBD/78/
Based on the answer from Wade Tandy here is a new jsfiddle with following improvements:
decimal numbers possible
thousands separator and decimal separator based on locals
and some other tweaks ...
I have also replaces all String.replace(regex) by split().join(), because this allows me to use variables in the expression.
http://jsfiddle.net/KPeBD/283/
I'm trying to build an event date filter by passing in a time range. I was able to filter for events that are the same date as today but need help to filter events from last week, last month, etc...
$scope.eventDateFilter = function(column) {
if(column === 'today') {
$scope.dateRange = $scope.dateToday;
} else if (column === 'pastWeek') {
//need logic
} else if (column === 'pastMonth') {
//need logic
} else if (column === 'future') {
//need logic
} else {
$scope.dateRange = "";
}
}
Here's my fiddle:
http://jsfiddle.net/c6BfQ/3/
Your help is greatly appreciated.
I would use a custom filter. Here is one I used to filter things created in the last two days, it should give you an idea of how to do yours.
.filter('dateFilter', function() {
return function (objects) {
var filtered_list = [];
for (var i = 0; i < objects.length; i++) {
var two_days_ago = new Date().getTime() - 2*24*60*60*1000;
var last_modified = new Date(objects[i].date_created).getTime();
if (two_days_ago <= last_modified) {
filtered_list.push(objects[i]);
}
}
return filtered_list;
}
});