github.com/emate/nomad@v0.8.2-wo-binpacking/ui/app/mixins/searchable.js (about)

     1  import Mixin from '@ember/object/mixin';
     2  import { get, computed } from '@ember/object';
     3  
     4  /**
     5    Searchable mixin
     6  
     7    Simple search filtering behavior for a list of objects.
     8  
     9    Properties to override:
    10      - searchTerm: the string to use as a query
    11      - searchProps: the props on each object to search
    12      - listToSearch: the list of objects to search
    13  
    14    Properties provided:
    15      - listSearched: a subset of listToSearch of items that meet the search criteria
    16  */
    17  export default Mixin.create({
    18    searchTerm: '',
    19    listToSearch: computed(() => []),
    20    searchProps: null,
    21  
    22    listSearched: computed('searchTerm', 'listToSearch.[]', 'searchProps.[]', function() {
    23      const searchTerm = this.get('searchTerm');
    24      if (searchTerm && searchTerm.length) {
    25        return regexSearch(searchTerm, this.get('listToSearch'), this.get('searchProps'));
    26      }
    27      return this.get('listToSearch');
    28    }),
    29  });
    30  
    31  function regexSearch(term, list, keys) {
    32    if (term.length) {
    33      try {
    34        const regex = new RegExp(term, 'i');
    35        // Test the value of each key for each object against the regex
    36        // All that match are returned.
    37        return list.filter(item => keys.some(key => regex.test(get(item, key))));
    38      } catch (e) {
    39        // Swallow the error; most likely due to an eager search of an incomplete regex
    40      }
    41    }
    42  }