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$20
Altering the nav output

Hello,

Currently I'm using this code to include the post/page/post-type name into the nav li id:

add_filter( 'nav_menu_item_id', 'cor_post_meta_nav_menu', 10, 2 );

function cor_post_meta_nav_menu( $id, $item ) {

  $content_page_id = get_post_meta( $item->ID, '_menu_item_object_id', true );

  $content_page    = get_post( $content_page_id );

  $id = $content_page->post_name;

  return "nav-$id";

}

Would it perhaps be possible to alter this snippet to do this for categories aswell?

In example, this would be the new output:

<li id="nav-uncategorized"><a href="http://mydomain.tld/category/uncategorized/">Uncategorized</a></li>

This question has been answered.

Cor van Noorloos | 06/26/12 at 9:02am Edit

(4) Possible Answers Submitted...

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Last edited:
06/26/12
9:11am

AdamGold says:

Try:

add_filter( 'nav_menu_item_id', 'cor_post_meta_nav_menu', 10, 2 );



function cor_post_meta_nav_menu( $id, $item ) {



  $content_page_id = get_post_meta( $item->ID, '_menu_item_object_id', true );



$post_categories = wp_get_post_categories( $content_page_id );

	

foreach($post_categories as $c){

	$cat = get_category( $c );

	return "nav-" . $cat->name;

}



}

This will only return one the first category of the post though. Do you want to get all categories?

Previous versions of this answer: 06/26/12 at 9:11am | 06/26/12 at 9:11am | 06/26/12 at 9:11am

06/26/12 9:29am

Cor van Noorloos says:

Hi Adam,

Not exactly.

This is an example of what I currently have: http://mydomain.tld/default/

which outputs:

<nav role="navigation">

        <ul>

          <li id="nav-home" class="active"><a href="http://mydomain.tld/default/">Home</a></li>

          <li id="nav-sample-page"><a href="http://mydomain.tld/default/sample-page">Sample Page</a>

            <ul class="sub-menu">

              <li id="nav-hallo-wereld"><a href="http://mydomain.tld/default/hallo-wereld">Hallo wereld</a></li>

              <li id="nav-een-tweede-bericht"><a href="http://mydomain.tld/default/een-tweede-bericht">Een tweede bericht</a></li>

            </ul>

          </li>

          <li id="nav-hallo-wereld"><a href="http://mydomain.tld/default/categorie/ongecategoriseerd">Uncategorized</a></li>

        </ul>

      </nav>

ideally it should output

<nav role="navigation">

        <ul>

          <li id="nav-home" class="active"><a href="http://mydomain.tld/default/">Home</a></li>

          <li id="nav-sample-page"><a href="http://mydomain.tld/default/sample-page">Sample Page</a>

            <ul class="sub-menu">

              <li id="nav-hallo-wereld"><a href="http://mydomain.tld/default/hallo-wereld">Hallo wereld</a></li>

              <li id="nav-een-tweede-bericht"><a href="http://mydomain.tld/default/een-tweede-bericht">Een tweede bericht</a></li>

            </ul>

          </li>

          <li id="uncategorized"><a href="http://mydomain.tld/default/category/uncategorized">Uncategorized</a></li>

        </ul>

      </nav>

each post has only one category, so only the first category of the post would be more than fine

06/26/12 9:31am

AdamGold says:
Wait so what does my code output?

06/26/12 9:37am

Cor van Noorloos says:

<nav role="navigation">

  <ul>

    <li class="active"><a href="http://mydomain.tld/default/">Home</a></li>

    <li><a href="http://mydomain.tld/default/sample-page">Sample Page</a>

    <ul class="sub-menu">

      <li id="nav-Uncategorized"><a href="http://mydomain.tld/default/hallo-wereld">Hallo wereld</a></li>

      <li id="nav-Uncategorized"><a href="http://mydomain.tld/default/een-tweede-bericht">Een tweede bericht</a></li>

    </ul>

    </li>

    <li id="nav-Uncategorized"><a href="http://mydomain.tld/default/category/uncategorized">uncategorized</a></li>

  </ul>

</nav>

06/26/12 9:39am

AdamGold says:
And what is being echoed without my code?

06/26/12 9:52am

Cor van Noorloos says:

with the code from the question it outputs

<nav role="navigation">

  <ul>

    <li id="nav-home" class="active"><a href="http://mydomain.tld/default/">Home</a></li>

    <li id="nav-sample-page"><a href="http://mydomain.tld/default/sample-page">Sample Page</a>

      <ul class="sub-menu">

        <li id="nav-hallo-wereld"><a href="http://mydomain.tld/default/hallo-wereld">Hallo wereld</a></li>

        <li id="nav-een-tweede-bericht"><a href="http://mydomain.tld/default/een-tweede-bericht">Een tweede bericht</a></li>

      </ul>

    </li>

    <li id="nav-hallo-wereld"><a href="http://mydomain.tld/default/category/uncategorized">Uncategorized</a></li>

  </ul>

</nav>

without the code from the question it outputs

<nav role="navigation">

  <ul>

    <li class="active"><a href="http://mydomain.tld/default/">Home</a></li>

    <li><a href="http://mydomain.tld/default/sample-page">Sample Page</a>

      <ul class="sub-menu">

        <li><a href="http://mydomain.tld/default/hallo-wereld">Hallo wereld</a></li>

        <li><a href="http://mydomain.tld/default/een-tweede-bericht">Een tweede bericht</a></li>

      </ul>

    </li>

    <li><a href="http://mydomain.tld/default/category/uncategorized">Uncategorized</a></li>

  </ul>

</nav>

PS. sorry for the short replies (I'm currently at the daytime job)

06/26/12 10:08am

AdamGold says:
Sorry then I don't understand what you're trying to achieve. What's wrong with my code?

Last edited:
06/26/12
9:12am

Gabriel Reguly says:

Hi Cor,

Do you mean altering the output from

<?php wp_list_categories( $args ); ?>

Then I suggest a custom walker.

Please let me know what categories you mean.

Regards,
Gabriel

06/26/12 10:38am

Gabriel Reguly says:

Hi Cor,

Please try this



add_filter( 'nav_menu_item_id', 'cor_post_meta_nav_menu', 10, 2 );

function cor_post_meta_nav_menu( $id, $item ) {

  if ( 'http://mydomain.tld/default/category/' == substr( $item->url, 0 , 36) ) {

    $id = substr( $item->url, 37)

  } else {

    $content_page_id = get_post_meta( $item->ID, '_menu_item_object_id', true );

    $content_page     = get_post( $content_page_id );

    $id = $content_page->post_name;

  }

  return "nav-$id";

}

Regards,
Gabriel

Last edited:
06/26/12
9:16am
Arnav Joy says:
how do you producing

<li id="nav-uncategorized"><a href="http://mydomain.tld/category/uncategorized/">Uncategorized</a></li>

Last edited:
06/26/12
10:18am

Hai Bui says:

Here you go:

add_filter( 'nav_menu_item_id', 'cor_post_meta_nav_menu', 10, 2 );



function cor_post_meta_nav_menu( $id, $item ) {



	if ($item->object == 'category') {

		$id = strtolower(get_the_category_by_ID($item->object_id));

	}

	else {

	  $content_page_id = get_post_meta( $item->ID, '_menu_item_object_id', true );

	  $content_page    = get_post( $content_page_id );

	  $id = "nav-".$content_page->post_name;

	}

  return $id;



}

06/26/12 10:36am

Cor van Noorloos says:
exactly :)

much appreciated!

This question has expired.

Gabriel Reguly, Cor van Noorloos, Francisco Javier Carazo Gil, Arnav Joy voted on this question.

Current status of this question: Completed

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$20 Altering the nav output

(4) Possible Answers Submitted...

$20
Altering the nav output