Display Posts Category Wise - wordpress

Question

I have code to show the latest 3 posts of every category and I want to exclude the child categories, but it doesn't exclude the sub category and it shows sub category separately and it show the latest 3 posts of sub category. Is there any way to exclude sub categories from loop.
Here is the code:
<?php
//start page loop
if (have_posts()) : while (have_posts()) : the_post();
//get meta to set parent category
$library_filter_parent = '';
$library_parent = get_post_meta($post->ID, 'wts_library_parent', true);
if($library_parent != 'select_library_parent') { $library_filter_parent = $library_parent; } else { $library_filter_parent = NULL; }
?>
<div id="library-by-category-wrap">
<?php
//get meta to set parent category
$library_filter_parent = '';
$library_parent = get_post_meta($post->ID, 'wts_library_parent', true);
if($library_parent != 'select_library_parent') { $library_filter_parent = $library_parent; } else { $library_filter_parent = NULL; };
//term loop
$terms = get_terms('library_cats','orderby=custom_sort&hide_empty=1&child_of='.$library_filter_parent.'');
foreach($terms as $term) { ?>
<div class="heading">
<h2><?php echo $term->name; ?></h2>
</div>
<div class="library-category">
<?php
//tax query
$tax_query = array(
array(
'taxonomy' => 'library_cats',
'terms' => $term->slug,
'field' => 'slug'
)
);
$term_post_args = array(
'post_type' => 'library',
'numberposts' => '3',
'tax_query' => $tax_query
);
$term_posts = get_posts($term_post_args);
//start loop
foreach ($term_posts as $post) : setup_postdata($post);
//get images
$featured_image = get_the_post_thumbnail($post->ID, 'cat-thumbnail'); ?>
<?php if(!empty($featured_image)) { ?>
<div class="library-item">
<a class="library-title" href="#" title="<?php the_title(); ?>" target="_blank">
<h3><?php the_title(); ?></h3>
</a>
</div>
<!-- /library-item -->
<?php } ?>
<?php endforeach; ?>
</div>
<!-- /library-category -->
<?php } wp_reset_postdata(); ?>
</div>
<!-- /library-by-category-wrap -->
<?php wp_reset_query(); ?>
<?php endwhile; endif; ?>

Answer 1

<?php
//get all terms (e.g. categories or post tags), then display all posts in each term
$taxonomy = 'category';// e.g. post_tag, category
$param_type = 'category__in'; // e.g. tag__in, category__in
$term_args=array(
'orderby' => 'name',
'order' => 'ASC'
);
$terms = get_terms($taxonomy,$term_args);
if ($terms) {
foreach( $terms as $term ) {
$args=array(
"$param_type" => array($term->term_id),
'post_type' => 'post',
'post_status' => 'publish',
'posts_per_page' => -1,
'caller_get_posts'=> 1
);
$my_query = null;
$my_query = new WP_Query($args);
if( $my_query->have_posts() ) {
echo 'List of Posts in '.$taxonomy .' '.$term->name;
while ($my_query->have_posts()) : $my_query->the_post(); ?>
<p><?php the_title(); ?></p>
<?php
endwhile;
}
}
}
wp_reset_query(); // Restore global post data stomped by the_post().
?>
Note see the Time Parameters in the query_posts() article.

Answer 2

<?php // get all the categories from the database
$cats = get_categories();
// loop through the categries
foreach ($cats as $cat) {
// setup the cateogory ID
$cat_id= $cat->term_id;
// Make a header for the cateogry
echo "<h2>".$cat->name."</h2>";
// create a custom wordpress query
query_posts(“cat=$cat_id&post_per_page=100");
if (have_posts()) : while (have_posts()) : the_post(); ?>
<?php // create our link now that the post is setup ?>
<?php the_title(); ?>
<?php echo '<hr/>'; ?>
<?php endwhile; endif;
// done our wordpress loop. Will start again for each category ?>
<?php } // done the foreach statement ?>

Answer 3

<?php
$catquery = new WP_Query( array( 'post_type' => 'testimonials', 'category_name'=>'hello','posts_per_page' => 10 ) );
while($catquery->have_posts()) : $catquery->the_post();
?>
<ul>
<li>
<h3>
<?php the_title(); ?>
</h3>
</li>
<li>
<?php the_content(); ?>
</li>
</ul>
<?php endwhile; ?>

Answer 4

$taxonomy = 'category';
$term_args = array(
'orderby' => 'name',
'order' => 'ASC',
'parent' => 0
);
$terms = get_terms($taxonomy, $term_args);

Answer 5

[homepage_cat_grid limit='3' cat_id='2']
add_shortcode( 'homepage_cat_grid', array($this, 'homepage_postgrid_shortcode') );
/**
* HOME PAGE CATEGORY WISE POST GRID
*/
public function homepage_postgrid_shortcode( $atts, $content ) {
extract( shortcode_atts( array (
'order' => '',
'orderby' => '',
'limit' => '',
'cat_id'=> ''
), $atts ) );
ob_start();
$args = array(
'post_type' => 'post',
'order' => $order,
'orderby' => $orderby,
'posts_per_page' => $limit,
'cat' => $cat_id
);
$home_post = new WP_Query( $args );
if( $home_post->have_posts() ) : ?>
<div class="post-header">
<div class="head-left">
<?Php
$terms = wp_get_post_terms($home_post->post->ID,'category');
$cat_nm=$terms[0]->name;
if($cat_nm=='News'): echo "Recent News"; else: echo $cat_nm; endif;
?>
</div>
<a href="<?php
$category_link = get_category_link( $terms[0]->term_id );
echo $category_link; ?>" class="btn post-head-btn">VIEW ALL</a>
</div>
<div class="row">
<?php while ( $home_post->have_posts() ) : $home_post->the_post(); ?>
<div class="col-md-4">
<div class="single-grid">
<a href="<?php echo get_permalink( $post->ID ); ?>">
<?php the_post_thumbnail( $post->ID ); ?>
</a>
<div class="post-caption">
<?php echo the_category(); ?>
<div class="post-heading">
<?php echo the_title(); ?>
</div>
<div class="post-content">
<?php the_excerpt(); ?>
</div>
<div class="row">
<div class="col-12">
<a class="btn btn-dark cust-btn" href="<?php echo get_permalink( $post->ID ); ?>">Read More</a>
</div>
</div>
</div>
</div>
</div>
<?php endwhile; wp_reset_query(); ?>
</div>
<?php else :
get_template_part( 'template-parts/content', 'none' );
endif;
return ob_get_clean();
}