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POMega Menu with PHP in Laravel
 

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  1. POMega Menu with PHP in Laravel
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    <p><strong>EDIT</strong>: Based on the advice by Tom, here's my modified code. Works well, so thanks Tom. </p> <pre><code>&lt;?php $categories = Category::where('parent_id', '0')-&gt;get(); foreach($categories as $category): $category_courses = get_courses($category-&gt;id); $sub_categories = Category::where('parent_id', $category-&gt;id)-&gt;get(); $max_iteration = ceil(count($sub_categories) / 4); ?&gt; &lt;li class="dropdown mega-menu-4"&gt; &lt;a href="#" class="dropdown-toggle" data-toggle="dropdown" title="{{ $category-&gt;name }}"&gt;{{ $category-&gt;name }} &lt;b class="caret"&gt;&lt;/b&gt;&lt;/a&gt; &lt;ul class="dropdown-menu style-plain"&gt; &lt;li class="one-column"&gt; &lt;?php foreach($sub_categories as $key=&gt;$sub_category): ?&gt; &lt;ul&gt; &lt;li class="nav-title"&gt;{{ $sub_category-&gt;name }}&lt;/li&gt; &lt;?php foreach(get_courses($sub_category-&gt;id) as $course): ?&gt; &lt;li&gt;{{ $course-&gt;title }}&lt;/li&gt; &lt;?php endforeach; ?&gt; &lt;/ul&gt; &lt;?php if(($key + 1) % $max_iteration == 0): ?&gt; &lt;/li&gt; &lt;li class="one-column"&gt; &lt;?php endif; ?&gt; &lt;?php endforeach; ?&gt; &lt;/li&gt; &lt;/ul&gt; &lt;/li&gt; &lt;?php endforeach; ?&gt; </code></pre> <p>Though now I'm thinking I should create a tree in memory after getting some advice from machuga in the #laravel IRC. Essentially based on this SO answer <a href="https://stackoverflow.com/questions/14740429/flat-php-array-to-hierarchy-tree">Flat PHP Array to Hierarchy Tree</a>.</p> <hr> <p>I'm trying to create a mega menu in my Laravel app with the following structure, so that it works well with Bootstrap 2.3.</p> <pre><code>&lt;div class="navbar"&gt; &lt;div class="navbar-inner"&gt; &lt;div class="container"&gt; &lt;div class="nav-collapse collapse"&gt; &lt;ul class="nav"&gt; &lt;li class="dropdown mega-menu-4 transition"&gt; &lt;a href="#" class="dropdown-toggle" data-toggle="dropdown"&gt;$category &lt;b class="caret"&gt;&lt;/b&gt;&lt;/a&gt; &lt;ul class="dropdown-menu"&gt; &lt;li class="one-column"&gt; &lt;ul&gt; &lt;li class="nav-title"&gt;$subCategory 1&lt;/li&gt; &lt;li&gt;&lt;a href="#"&gt;$course&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="#"&gt;$course&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="#"&gt;$course&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="#"&gt;$course&lt;/a&gt;&lt;/li&gt; &lt;/ul&gt; &lt;ul&gt; &lt;li class="nav-title"&gt;$subCategory 1&lt;/li&gt; &lt;li&gt;&lt;a href="#"&gt;$course&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="#"&gt;$course&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="#"&gt;$course&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="#"&gt;$course&lt;/a&gt;&lt;/li&gt; &lt;/ul&gt; &lt;/li&gt; &lt;li class="one-column"&gt; &lt;ul&gt; &lt;li class="nav-title"&gt;$subCategory 2&lt;/li&gt; &lt;li&gt;&lt;a href="#"&gt;$course&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="#"&gt;$course&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="#"&gt;$course&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="#"&gt;$course&lt;/a&gt;&lt;/li&gt; &lt;/ul&gt; &lt;ul&gt; &lt;li class="nav-title"&gt;$subCategory 2&lt;/li&gt; &lt;li&gt;&lt;a href="#"&gt;$course&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="#"&gt;$course&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="#"&gt;$course&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="#"&gt;$course&lt;/a&gt;&lt;/li&gt; &lt;/ul&gt; &lt;/li&gt; &lt;li class="one-column"&gt; &lt;ul&gt; &lt;li class="nav-title"&gt;$subCategory 3&lt;/li&gt; &lt;li&gt;&lt;a href="#"&gt;$course&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="#"&gt;$course&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="#"&gt;$course&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="#"&gt;$course&lt;/a&gt;&lt;/li&gt; &lt;/ul&gt; &lt;ul&gt; &lt;li class="nav-title"&gt;$subCategory 3&lt;/li&gt; &lt;li&gt;&lt;a href="#"&gt;$course&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="#"&gt;$course&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="#"&gt;$course&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="#"&gt;$course&lt;/a&gt;&lt;/li&gt; &lt;/ul&gt; &lt;/li&gt; &lt;li class="one-column"&gt; &lt;ul&gt; &lt;li class="nav-title"&gt;$subCategory 4&lt;/li&gt; &lt;li&gt;&lt;a href="#"&gt;$course&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="#"&gt;$course&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="#"&gt;$course&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="#"&gt;$course&lt;/a&gt;&lt;/li&gt; &lt;/ul&gt; &lt;ul&gt; &lt;li class="nav-title"&gt;$subCategory 4&lt;/li&gt; &lt;li&gt;&lt;a href="#"&gt;$course&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="#"&gt;$course&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="#"&gt;$course&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="#"&gt;$course&lt;/a&gt;&lt;/li&gt; &lt;/ul&gt; &lt;/li&gt; &lt;/ul&gt; &lt;/li&gt; &lt;/ul&gt; &lt;/div&gt; &lt;/div&gt; &lt;/div&gt; &lt;/div&gt; </code></pre> <p>In my database I have the following:</p> <pre><code>table: categories fields: id, parent_id, name, slug table: courses fields: id, category_id, title, slug </code></pre> <p>I am struggling with the for and foreach loop logic in order to generate the ul elements within the li:one-column elements. I want a maximum of 4 columns, with as many rows as necessary, depending on how many sub-categories there are.</p> <p>So, in the categories table a top level category will not have a 'parent_id' assigned to it but a sub-category will have a top level 'parent_id' assigned to it.</p> <p>So I can foreach through $categories as $category and setup the top level menu structure which will create a li:dropdown element for each top level category. The problem comes when trying to implement the li:one-column elements. Each li:one-column element is essentially a column in the mega menu, so I need a maximum of four. Each ul within the column is a sub-category.</p> <p>So if there are 13 sub-categories under the top level category, each column will have the following:</p> <pre><code>Column 1: 4 Column 2: 3 Column 3: 3 Column 4: 3 </code></pre> <p>Then if a new sub-category were added, it would be:</p> <pre><code>Column 1: 4 Column 2: 4 Column 3: 3 Column 4: 3 </code></pre> <p>And so on. So essentially each new sub-category would fill up the next available column.</p> <p>There's probably a really easy solution to this but I'm struggling with the logic at the minute. Thanks in advance.</p> <p><strong>EDIT</strong>: I'm getting closer using:</p> <pre><code> &lt;ul class="nav"&gt; @foreach($categories as $category) &lt;?php $category_courses = get_courses($category-&gt;id); $sub_categories = Category::where('parent_id', $category-&gt;id)-&gt;get(); $sub_categories_total = count($sub_categories); // int(5) $sub_category_split = round($sub_categories_total / 4); // int(1) ?&gt; &lt;li class="dropdown mega-menu-4"&gt; &lt;a href="#" class="dropdown-toggle" data-toggle="dropdown" title="{{ $category-&gt;name }}"&gt;{{ $category-&gt;name }} &lt;b class="caret"&gt;&lt;/b&gt;&lt;/a&gt; &lt;ul class="dropdown-menu style-plain"&gt; @for($i=0; ++$i &lt;=4;) &lt;li class="one-column"&gt; @foreach($sub_categories as $sub_category) &lt;ul &gt; &lt;li class="nav-title"&gt;{{ $sub_category-&gt;name }}&lt;/li&gt; @foreach(get_courses($sub_category-&gt;id) as $course) &lt;li&gt;{{ $course-&gt;title }}&lt;/li&gt; @endforeach &lt;/ul&gt; @endforeach &lt;/li&gt; @endfor &lt;/ul&gt; &lt;/li&gt; @endforeach &lt;/ul&gt; </code></pre> <p>I'm still not quite there though, as it adds all sub_categories to each li:one-column element. I feel I'm certainly closer to a solution though.</p> <p><strong>EDIT</strong>: OK, I'm a lot closer now. I'm now able to output only the maximum iteration in each li:one-column element but it outputs exactly the same data. I need a way to continue the foreach loop from where it breaks.</p> <pre><code>&lt;ul class="nav"&gt; @foreach($categories as $category) &lt;?php $category_courses = get_courses($category-&gt;id); $sub_categories = Category::where('parent_id', $category-&gt;id)-&gt;get(); $max_iteration = round(count($sub_categories) / 4); ?&gt; &lt;li class="dropdown mega-menu-4"&gt; &lt;a href="#" class="dropdown-toggle" data-toggle="dropdown" title="{{ $category-&gt;name }}"&gt;{{ $category-&gt;name }} &lt;b class="caret"&gt;&lt;/b&gt;&lt;/a&gt; &lt;ul class="dropdown-menu style-plain"&gt; @for($ci=0; ++$ci &lt;=4;) &lt;li class="one-column"&gt; @foreach($sub_categories as $key=&gt;$sub_category) @if($key &lt;= $max_iteration) &lt;ul &gt; &lt;li class="nav-title"&gt;{{ $sub_category-&gt;name }}&lt;/li&gt; @foreach(get_courses($sub_category-&gt;id) as $course) &lt;li&gt;{{ $course-&gt;title }}&lt;/li&gt; @endforeach &lt;/ul&gt; @else &lt;?php break; ?&gt; @endif @endforeach &lt;/li&gt; @endfor &lt;/ul&gt; &lt;/li&gt; @endforeach &lt;/ul&gt; </code></pre> <p><strong>EDIT</strong>: OK, this is the closest I've got so far and it's almost there. Still not right though, as it outputs 1 subcategory in the first column, column 2, column 3 but 2 in column 4. :-(</p> <pre><code> @foreach($categories as $category) &lt;?php $category_courses = get_courses($category-&gt;id); $sub_categories = Category::where('parent_id', $category-&gt;id)-&gt;get(); $max_iteration = round(count($sub_categories) / 4) + 1; ?&gt; &lt;li class="dropdown mega-menu-4"&gt; &lt;a href="#" class="dropdown-toggle" data-toggle="dropdown" title="{{ $category-&gt;name }}"&gt;{{ $category-&gt;name }} &lt;b class="caret"&gt;&lt;/b&gt;&lt;/a&gt; &lt;ul class="dropdown-menu style-plain"&gt; &lt;li class="one-column"&gt; @foreach($sub_categories as $key=&gt;$sub_category) &lt;ul&gt; &lt;li class="nav-title"&gt;{{ $sub_category-&gt;name }}&lt;/li&gt; @foreach(get_courses($sub_category-&gt;id) as $course) &lt;li&gt;{{ $course-&gt;title }}&lt;/li&gt; @endforeach &lt;/ul&gt; @if($key &lt;= $max_iteration) &lt;/li&gt; &lt;li class="one-column"&gt; @endif @endforeach &lt;/li&gt; &lt;/ul&gt; &lt;/li&gt; @endforeach </code></pre>
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    1. COI'm thinking I may need to count the total sub-categories and then create some logic to evenly split them across the li:one-column elements.
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    2. COSo this is where I'm struggling. I need to foreach $sub_categories as $sub_category so I can get access to the properties of each sub-category but I need to be able to escape out of the foreach loop if it reaches a certain integer value and then start again where it left off in a new column.
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