Angular Filter Chain

Chaining filters in angular.

Install

Download angular-filter-chain.js(or minified file angular-filter-chain.min,js) in project folder.

Or bower:

$ bower install --save angular-chain-filter

Or npm:

$ npm install --save angular-chain-filter

Usage

Include angular-filter-chain.js to your project and then you can start using the angular-filter-chain provider.

For example in controllers:

var app = angular.module('myApp', ['angular-filter-chain']);

app.controller('MainCtrl', function ($scope, chainFilters) {
    var peoples = [
        { id: 0, name: 'John', sex: 'male', age: 17, email: '[email protected]' },
        { id: 1, name: 'Steven', sex: 'male', age: 22, email: '[email protected]' },
        { id: 2, name: 'Carly', sex: 'female', age: 18, email: '[email protected]' },
        { id: 3, name: 'Tommy', sex: 'male', age: 15, email: '[email protected]' },
        { id: 4, name: 'Karen', sex: 'female', age: 23, email: 'MØ@leanon.com' }
    ];
    
    function nameDecorator(items, prefix) {
        // Items are copied from originals.
        // Originals will not change even if you change items in filter. 
        var idx = 0;
        
        for (idx; idx < items.length; idx++) {
            items[idx].name = prefix + items[idx].name;
        }
        
        return items;
    }
    
    $scope.filteredPeoples =
        chainFilters(peoples, {
            nameFilter: nameDecorator
        })
        .nameFilter('o-')    // You can use your own filter when you give filter map on config.
        .applyFilter('orderBy', '-age')   // Or use filters which provided by $filter
        .getItems();
        
    /*
    Results:
    $scope.filteredPeoples =
        { id: 3, name: 'o-Tommy', sex: 'male', age: 15, email: '[email protected]' },
        { id: 0, name: 'o-John', sex: 'male', age: 17, email: '[email protected]' },
        { id: 2, name: 'o-Carly', sex: 'female', age: 18, email: '[email protected]' },
        { id: 1, name: 'o-Steven', sex: 'male', age: 22, email: '[email protected]' },
        { id: 4, name: 'o-Karen', sex: 'female', age: 23, email: 'MØ@leanon.com' }
    ];
    */ 
});

API

chainFilters(items[, filterMap])

• items Collection which used in filters.

• filterMap Custom filters map which can be chained. Those filters will receive items data on first argument. Define property key as name and value as filter, you can use filter by access key. For example:

  function customFilter(items, ...) { ... }
    
  var filteredItems = chainFilters(items, {
      myFilter: customFilter
  })
  .myFilter(...)
  .getItems();

.applyFilter(filterName[, params])

User filter which provided by $filterProvider.

.getItems()

Return filtered items.

Your original items will not change.

License

MIT Licensed

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