How Jump to with collections of data in laravel -


i'm implementing jump to... functionality in project. want is:

  1. if user in first item left button not included.
  2. if user in last item right button not included.
  3. the left button should have link same link before current/selected item.
  4. the right button should have link same link after current/selected item.

please see code below:

controller

$course = course::with([   'assignments' => $undeleted,   'quizzes' => $undeleted,   'add_links' => $undeleted ])->findorfail($id); $course_items = collect($course->assignments); $course_items = $course_items->merge(collect($course->quizzes)); $course_items = $course_items->merge(collect($course->add_links)); $course_items = $course_items->sortby('item_number');

view

<div class="jump-to">     <div class="pull-right">         <div class="btn-group" role="group">              @foreach($course->topics $topic)                 @foreach(collect($topic->assignments)->merge(collect($topic->quizzes))->merge(collect($topic->add_links))->sortby('item_number') $first_item)                     @if($first_item->id != $assignment->id)                         <a href="#" class="btn btn-primary">                             <i class="fa fa-angle-left"></i>                         </a>                     @endif                     <?php break 2; ?>                 @endforeach             @endforeach             <div class="btn-group" role="group">                 <button type="button" class="btn btn-primary dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">                     jump <div class="caret"></div>                 </button>                 <ul class="dropdown-menu" role="menu">                     @foreach($course->topics $topic)                         <li class="jdivider">                             topic {{ $topic->topic_number }}                         </li>                         @foreach(collect($topic->assignments)->merge(collect($topic->quizzes))->merge(collect($topic->add_links))->sortby('item_number') $topic_item)                             <li>                                 @if($topic_item->item_type() == 'assignment')                                     <a title="assignment: {{ $topic_item->name }}" class="regular-link" href="{{ route('assignment.view', ['course_id' => $course->id, 'id' => $topic_item->id]) }}">                                         <i class="fa fa-tasks"></i> {{ str_limit($topic_item->name, 15) }}                                     </a>                                 @elseif($topic_item->item_type() == 'quiz')                                     <a title="quiz: {{ $topic_item->name }}" class="regular-link" href="{{ route('quiz.view', ['course_id' => $course->id, 'id' => $topic_item->id]) }}">                                         <i class="fa fa-file-text"></i> {{ str_limit($topic_item->name, 15) }}                                     </a>                                 @elseif($topic_item->item_type() == 'add_link')                                     <a href="#">                                         @if(!empty($topic_item->file_location) && in_array(strtolower(last(explode('.', $topic_item->file_location))), ['pdf', 'docx', 'doc']))                                             <i class="fa fa-file-pdf-o"></i>                                         @elseif(empty($topic_item->file_location))                                             <i class="fa fa-globe"></i>                                         @else                                             <i class="fa fa-file-text-o"></i>                                         @endif                                         {{ str_limit($topic_item->name, 15) }}                                     </a>                                 @endif                             </li>                         @endforeach                     @endforeach                 </ul>             </div>             <a href="#" class="btn btn-primary">                 <i class="fa fa-angle-right"></i>             </a>         </div>     </div> </div>

example dropdown links:

assignment1
assignment2
quiz1
quiz2
reviewer1

if clicked assignment2, left button, has id or link assignment1. if clicked reviewer1, right button disappears , left button has id or link quiz2 , same other links.


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