What are the steps to effectively utilize the $filter('filter') function when filtering multiple columns with OR as the condition?

Question

What are the steps to effectively utilize the $filter('filter') function when filtering multiple columns with OR as the condition?

In my AngularJs Application, I have a collection of customers.

var customers = [
    {
        "Name": "Alfreds Futterkiste",
        "City": "Berlin",
        "Country": "Germany"
    },
    {
        "Name": "Ana Trujillo Emparedados y helados",
        "City": "México D.F.",
        "Country": "Mexico"
    }
];

I am trying to filter these customers based on multiple columns. The code I used below did not yield the desired results.

$scope.customers = (
    $filter('filter')(customers, {
        Name: $scope.criteria.searchtext,
        City: $scope.criteria.searchtext
    })
);

UPDATE

Can someone guide me on converting the above syntax to use 'OR' logic? Please refer to this CodePen Sample for illustration.

javascript angularjs angular-filters

Answer 1

Answer №1

When it comes to custom filtering in Angular, I find that utilizing Array.prototype.filter() is a simple and effective approach. Another option is to incorporate a function argument with $filter.

In the scenario below, we are assuming a partial match:

$scope.customers = customers.filter(item){
     var term = $scope.criteria.searchtext.toLowerCase();
     //partial match 
     return item.Name.toLowerCase().indexOf(term) >-1 
            || item.City.toLowerCase().indexOf(term) >-1;
});

Furthermore, this code snippet can easily be transformed into an Angular custom filter for use within the view.

Answer 2

When it comes to custom filtering in Angular, I find that utilizing Array.prototype.filter() is a simple and effective approach. Another option is to incorporate a function argument with $filter.

In the scenario below, we are assuming a partial match:

$scope.customers = customers.filter(item){
     var term = $scope.criteria.searchtext.toLowerCase();
     //partial match 
     return item.Name.toLowerCase().indexOf(term) >-1 
            || item.City.toLowerCase().indexOf(term) >-1;
});

Furthermore, this code snippet can easily be transformed into an Angular custom filter for use within the view.

Answer 3

Answer №2

Implement a filter for customers

<tr class="animate" ng-repeat="customer in customers | filter: criteria.searchtext">
<td ng-bind="customer.Name"></td>
<td ng-bind="customer.City"></td>
<td ng-bind="customer.Country"></td>
</tr>

Assign the customers to the $scope as shown below

$scope.customers = [{}]; // Array containing customer data

View the completed Solution

Please provide feedback on whether this solution meets your needs.

Answer 4

Implement a filter for customers

<tr class="animate" ng-repeat="customer in customers | filter: criteria.searchtext">
<td ng-bind="customer.Name"></td>
<td ng-bind="customer.City"></td>
<td ng-bind="customer.Country"></td>
</tr>

Assign the customers to the $scope as shown below

$scope.customers = [{}]; // Array containing customer data

View the completed Solution

Please provide feedback on whether this solution meets your needs.

Answer 5

Answer №3

I developed a unique Custom filter that can effectively filter multiple columns using the OR condition. Take a look:

var myApp = angular.module('myApp',[]);

function MyCtrl($scope,myFilterFilter) {
 $scope.criteria = {};
  $scope.criteria.searchtext = 'Berlin';
var customers =[{"Name":"Alfreds Futterkiste","City":"Berlin","Country":"Germany"},
{"Name":"Ana Trujillo Emparedados y helados","City":"México D.F.","Country":"Mexico"},{"Name":"Futterkiste","City":"Berlin","Country":"Germany asfdasdas"}]
$scope.customers=myFilterFilter(customers,$scope.criteria.searchtext,$scope.criteria.searchtext);
 
}


angular.module('myApp').filter('myFilter', function() {
  return function(customers,name,city) {
      var yes = [];
      angular.forEach(customers, function(value, key) {
        if ((value['Name'] === name) || (value['City'] === city)) {
           yes.push(value);              
        }
        
    });
    console.log(yes)
    return yes
  }
})

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.19/angular.min.js"></script>
<div ng-controller="MyCtrl" ng-app="myApp">
  Hello, {{customers}}!
</div>

Check out the fiddle here

Answer 6

I developed a unique Custom filter that can effectively filter multiple columns using the OR condition. Take a look:

var myApp = angular.module('myApp',[]);

function MyCtrl($scope,myFilterFilter) {
 $scope.criteria = {};
  $scope.criteria.searchtext = 'Berlin';
var customers =[{"Name":"Alfreds Futterkiste","City":"Berlin","Country":"Germany"},
{"Name":"Ana Trujillo Emparedados y helados","City":"México D.F.","Country":"Mexico"},{"Name":"Futterkiste","City":"Berlin","Country":"Germany asfdasdas"}]
$scope.customers=myFilterFilter(customers,$scope.criteria.searchtext,$scope.criteria.searchtext);
 
}


angular.module('myApp').filter('myFilter', function() {
  return function(customers,name,city) {
      var yes = [];
      angular.forEach(customers, function(value, key) {
        if ((value['Name'] === name) || (value['City'] === city)) {
           yes.push(value);              
        }
        
    });
    console.log(yes)
    return yes
  }
})

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.19/angular.min.js"></script>
<div ng-controller="MyCtrl" ng-app="myApp">
  Hello, {{customers}}!
</div>

Check out the fiddle here

What are the steps to effectively utilize the $filter('filter') function when filtering multiple columns with OR as the condition?

Answer №1

Answer №2

Answer №3

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