ng2-nested-search

A simple custom pipe for filtering arrays in your Angular 2 projects (works with Angular 4 and Angular 5 too) and get the count of filtered items. It supports nested search and you may search the array of items on specific properties.

Nested Search

Search on specific properties

How to use

import FilterPipeModule to your module (here I'm lazy loading)

import { NgModule } from '@angular/core';
import { ViewCharacters } from './view-characters';
import { FilterPipeModule } from 'ng2-nested-search';

@NgModule({
  declarations: [
    ViewCharacters
  ],
  imports: [
    FilterPipeModule
  ],
})
export class ViewCharactersModule {}

For enabling nested search, set isNestedSearch to true in the filterMetadata as shown below

    searchName : string = "";
    searchFamily : string = "";
    filterMetadata = { count: 0, isNestedSearch : true };

    characters = [
    {
        name : "Daenerys",
        family : "Targaryen",
        gender : "Female"
    },
    {
        name : "Jaime",
        family : "Lannister",
        gender : "Male"
    },
    {
        name : "Sansa",
        family : "Stark",
        gender : "Female"
    },
    {
        name : "Arya",
        family : "Stark",
        gender : "Female"
    },
    {
        name : "Theon",
        family : "Greyjoy",
        gender : "Male"
    }
]

in HTML

  <div style="text-align: center;">
    <div style="display : inline-block; width : 48%">
      <input style="width: 100%; padding: 13px; border-radius: 4px; border: 1px solid #ccc;" placeholder="Search By Family" [(ngModel)]="searchFamily"/>
    </div>
    <div style="display : inline-block; width : 48%">
      <input style="width: 100%; padding: 13px; border-radius: 4px; border: 1px solid #ccc;" placeholder="Search By Name" [(ngModel)]="searchName"/>
    </div>
  </div>

  <div style="padding : 8px 4px 0px 4px;">
    <span>Total items filtered : </span>
    <span [innerHTML]="filterMetadata.count"></span>
  </div>

  <div class="ttct-request" style="border: 1px solid #ccc;padding: 8px;margin: 8px;border-radius: 4px;" *ngFor="let character of characters | ng2NestedSearch: { 'name' : searchName, 'family' : searchFamily} : filterMetadata">
    <div>
      <span style="color: #888;">Name : </span>
      <span [innerHTML]="character.name"></span>
    </div>
    <div>
      <span style="color: #888;">Family : </span>
      <span [innerHTML]="character.family"></span>
    </div>
    <div>
      <span style="color: #888;">Gender : </span>
      <span [innerHTML]="character.gender"></span>
    </div>
  </div>

You may also use a single search box to filter on specific properties only, initialize the searchText and filterMetadata in your page.ts as follows

searchText : string = "";
filterMetadata = { count: 0 };

add the ng2-nested-search component in your page.html as follows (only filtering on name and family in the example)

  <div style="text-align: center;">
    <div style="display : inline-block; width : 100%">
      <input style="width: 100%; padding: 13px; border-radius: 4px; border: 1px solid #ccc;" placeholder="Search" [(ngModel)]="searchText"/>
    </div>
  </div>

  <div style="padding : 8px 4px 0px 4px;">
    <span>Total items filtered : </span>
    <span [innerHTML]="filterMetadata.count"></span>
  </div>

  <div class="ttct-request" style="border: 1px solid #ccc;padding: 8px;margin: 8px;border-radius: 4px;" *ngFor="let character of characters | ng2NestedSearch: { 'name' : searchText, 'family' : searchText} : filterMetadata">
    <div>
      <span style="color: #888;">Name : </span>
      <span [innerHTML]="character.name"></span>
    </div>
    <div>
      <span style="color: #888;">Family : </span>
      <span [innerHTML]="character.family"></span>
    </div>
    <div>
      <span style="color: #888;">Gender : </span>
      <span [innerHTML]="character.gender"></span>
    </div>
  </div>

Contact

gmail : melwin.vincent.90@gmail.com