In Wordpress, wp_query with special attribute - wordpress

When I use the WP_Query, I want to filter them by titles' initial letter, Like I only want the post when the initial is between 'F-J', what should I do with it.
$query_arguments = array(
'post_type' => $atts['_type'],
'post_status' => 'publish',
'orderby' => 'title',
'order' => 'ASC',
'posts_per_page' => $atts['postsPerPage'],
'ignore_sticky_posts'=> 1,
'paged' => $paged
);
$trombinoscope_query = new WP_Query($query_arguments);

You can try the mysql solution described here.
Something as :
<?php
$child_pages = $wpdb->get_results("SELECT * FROM $wpdb->posts WHERE (post_title like 'F%' OR post_title like 'G%' OR post_title like 'I%' OR post_title like 'F%') AND post_status='publish'");
if ( $child_pages ) : foreach ( $child_pages as $pageChild ) : setup_postdata( $pageChild );
//Your code comes here.
endforeach; endif;
?>

I add a meta_key, it's fine for me now.
like this
function set_meta_for_employe_post() {
$post_title = get_the_title();
$post_id = get_the_ID();
if ('employe' == get_post_type()) {
if($post_title) {
add_post_meta($post_id, 'initial_letter', $post_title[0], true);
}
}
}
add_action( 'save_post', 'set_meta_for_employe_post');
and after:
$query_arguments = array(
'post_type' => $atts['_type'],
'post_status' => 'publish',
'orderby' => 'title',
'order' => 'ASC',
'posts_per_page' => $atts['postsPerPage'],
'ignore_sticky_posts'=> 1,
'paged' => $paged,
'meta_key' => 'initial_letter',
'meta_value' => $letters,
);

Related

Filtered a query in WordPress

To display some items from a post type, I'm using this WordPress query:
$posts = get_posts(array(
'post_type' => 'realisations',
'status' => 'publish',
'order' => 'ASC'
));
But how can I filter the datas returned by this query depending the infos in the post type page ? For example, I have a input 'year' to get the year of the project.
Thanks.
You can use wp_query like Below
$args = array (
'post_type' => array( 'realisations' ),
'post_status' => array( 'publish' ),
'order' => 'ASC',
'orderby' => 'date',
'year' => 'yourinputyear' // 2021
);
$query = new WP_Query( $args );
if ( $query->have_posts() ) { ?>
<?php while ( $query->have_posts() ) : $query->the_post();
echo get_the_title();
endwhile;
}else{
echo "Data not found";
}
Please try this way. Hope is useful.
Thanks
You can use Date Parameters check below code.
$posts = get_posts( array(
'post_type' => 'realisations',
'status' => 'publish',
'order' => 'ASC',
'date_query' => array(
array( 'year' => 'yourinputyear' )
)
) );

How do i show only 1 post from latest 10 post?

my english language is not good. sorry!
this code is for checkbox in advanced custom field plugin.
i want show only 1 post(randomly) from latest 10 post.
please help me. thanks
('posts_per_page' => 10) and ('numberposts' => 10) is not working.
<?php
$gallery = array(
"offset" => "0",
'showposts' => '1',
'orderby' => 'rand',
'meta_query' => array(
array(
'key' => 'postcat',
'value' => '"selection"',
'compare' => 'LIKE'
)));
// query
$qgallery = new WP_Query( $gallery );
?>
<?php if( $qgallery->have_posts() ): ?>
<?php while( $qgallery->have_posts() ) : $qgallery->the_post(); ?>
<div class="fromgallery">
<a href="0" class="frgall">
<span class="frgdesc"><?php the_title() ?></span>
</a></div>
<?php endwhile; ?><?php endif; ?>
Try this
$gallery = array(
'post_type' => 'post',
'posts_per_page' => 10,
'order' => 'DESC',
'no_found_rows' => 'true',
'_shuffle_and_pick' => 1
'meta_query' => array(
array(
'key' => 'postcat',
'value' => '"selection"',
'compare' => 'LIKE'
)));
$qgallery = new \WP_Query( $gallery );
I only do change in your code. For randomly one post you need to use '_shuffle_and_pick' => 1 , 'posts_per_page' => 10 is from 10 post and 'order' => 'DESC' is for latest posts. for custom '_shuffle_and_pick' you need to add
add_filter( 'the_posts', function( $posts, \WP_Query $qgallery )
{
if( $pick = $qgallery->get( '_shuffle_and_pick' ) )
{
shuffle( $posts );
$posts = array_slice( $posts, 0, (int) $pick );
}
return $posts;
}, 10, 2 );
To show Random post , Please use below script:
$args = array(
'post_type' => 'post',
'posts_per_page' => 10,
'orderby' => 'date',
'order' => 'DESC',
'no_found_rows' => 'true',
'_shuffle_and_pick' => 1
'post_status' => 'publish',
'meta_query' => array(
array(
'key' => 'postcat',
'value' => '"selection"',
'compare' => 'LIKE'
)
)
);
$the_query = new WP_Query( $args );
//check is post found
if ( $the_query->have_posts() ) {
while ( $the_query->have_posts() ) {
$the_query->the_post();
echo get_the_title();
}
wp_reset_postdata();
} else {
echo 'no posts found';
}
I hope it will help you :)

Get all posts with help of WP_Query

I need get all posts of site. I try do it in widget, that I made myself, but result is empty.
global $post;
$args = array(
'post_type' => 'post',
'post_status' => 'publish'
);
$query = new WP_Query( $args );
if ( $query->have_posts() ) {
while ($query->have_posts()) {
$query->the_post();
var_dump($post->ID);
}
}
And when I add in argument array parameter cat then return posts, but I need get all posts from all categories, not just from specified categories.
$args = array(
'post_type' => 'post',
'post_status' => 'publish',
'cat' => 22
);
Make sure the global $post is in the same function/scope.
If it still not working, instead of var_dump($post->ID) try:
var_dump($query->post->ID)
And don't forget to call wp_reset_postdata() after the while loop.
Try this:
$args = array(
'post_type' => 'post',
'posts_per_page' => -1
);
$the_query = new WP_Query( $args );
if ( $the_query->have_posts() ) :
while ( $the_query->have_posts() ) : $the_query->the_post();
the_title();
the_content();
endwhile;
wp_reset_postdata();
endif;
set posts_per_page to -1, this will return all posts from db.
$args = array(
'posts_per_page' => -1,
'post_type' => 'post',
);
$the_query = new WP_Query( $args );
while ( $the_query->have_posts() ) {
// do stuff
}
I understood problem, on site (where I working in current time) was installed polylang, and when I specify for function get_posts in arguments 'lang' => pll_current_language() it return all posts for current language.
$results = get_posts(
array(
'numberposts' => 9999,
'orderby' => 'rand',
'order' => 'ASC',
'post_type' => 'post',
'post_status' => 'publish',
'lang' => pll_current_language()
)
);

Get posts by category

I want to get several post by categoriy. So I try to use get_posts() function:
<?php $args = array(
'numberposts' => '3',
'post_status' => 'publish',
'orderby' => 'DESC'
'category' => '91'
);
$recent_posts = wp_get_recent_posts($args);?>
<?php echo get_the_date('F j, Y',$recent_posts["ID"])?>
But it doesn't work. How can I get posts by categoriy?
you could create an if statement for fetching posts from a particulair category.
$args = array(
'post_type' => 'post' ,
'orderby' => 'date' ,
'order' => 'DESC' ,
'posts_per_page' => 6,
'cat' => '3',
'paged' => get_query_var('paged'),
'post_parent' => $parent
);
$q = new WP_Query($args);
if ( $q->have_posts() ) {
while ( $q->have_posts() ) {
$q->the_post();
// your loop
}
}
cat => '3' is the category_id so you should look up the category_id you want to fetch and put it into the array
Hope this helps!

Exclude parent posts and display only child posts in archive

I have done this query and is working.I have a lot of child posts and i plan to display only child posts when listing the archive page of my custom post type city-guide.
$args = array(
'orderby' => 'date',
'order' => 'DESC',
'post_type' => 'city-guide',
'posts_per_page' => 36,
'paged' => $paged
);
$query = new WP_Query( $args );
?>
<?php $i=1; while( $query->have_posts() ): $query->the_post(); ?>
{
.....
}
I have tried
$all = get_posts(array('post_type'=> 'city-guide', 'posts_per_page' => -1));
$parents = array();
foreach ($all as $single)
{
$kids = get_children($single->ID);
if(isset($kids) && !empty($kids) && count($kids) >= 1)
{
$parents[] = $single->ID;
}
}
$args = array(
'orderby' => 'date',
'order' => 'DESC',
'post_type' => 'city-guide',
'post__not_in' => $parents,
'posts_per_page' => 36,
'paged' => $paged
);
$query = new WP_Query( $args );
?>
<?php $i=1; while( $query->have_posts() ): $query->the_post(); ?>
{
....
}
This did not work.Please help me find out where i went wrong.
I know it's an old question but hoping I can help someone that finds their way here looking for the same thing I was.
You can show ONLY child posts by excluding any posts with post_parent = 0 using the 'post_parent__not_in' argument:
$args = array(
'orderby' => 'date',
'order' => 'DESC',
'post_type' => 'city-guide',
'posts_per_page' => 36,
'paged' => $paged,
'post_parent__not_in' => array(0)
);
This avoids the need to loop thru each parent post to get each child.
I see you are trying to push the IDs into an array but why not just use the IDs while you are looping through them while getting the children within the loop at the same time? The example below is how I would tackle this.
<?php
$args = array(
'orderby' => 'date',
'order' => 'DESC',
'post_type' => 'city-guide',
'posts_per_page' => 36,
'paged' => $paged
);
$query = new WP_Query( $args );
$i=1; while( $query->have_posts() ): $query->the_post();
$parentID = get_the_ID();
$childrenArgs = array(
'post_type' => 'page',
'post_parent' => $parentID ,
);
$children = get_children($childrenArgs);
foreach ($children as $child){
echo '<h1>' . $child -> post_title . '</h1>';
$content = $child -> post_content;
$content = apply_filters('the_content', $content);
$content = str_replace(']]>', ']]>', $content);
echo $content;
}
endwhile;
?>
I think you need to look into the action pre_get_posts. Something like this in your functions.php would do the trick.
function namespace_custom_query_vars( $query ) {
if ( !is_admin() && $query->is_main_query()) {
if ( $query->query["post_type"] == 'custom_post_type' ) {
$query->set( 'post_parent__not_in', 0 );
}
}
return $query;
}
add_action( 'pre_get_posts', 'namespace_custom_query_vars' );
There's a decent post about this here. Though note that the code on this page does not compile for small syntax errors.
What about using relations? A simple disjunctive union should do the charm.
$args = array(
'post_type' => POST_TYPE,
'posts_per_page' => 36,
'orderby' => 'date',
'order' => 'DESC',
'tax_query' => array(
'relation' => 'AND',
array(
'taxonomy' => POST_TAXONOMY,
'field' => 'slug',
'terms' => $tax_slug,
'include_children' => true
),
array(
'taxonomy' => POST_TAXONOMY,
'field' => 'slug',
'terms' => $tax_slug,
'include_children' => false,
'operator' => 'NOT IN'
)
)
);
Or is there a reason why not to consider this?

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