get_posts apenas crianças de certos pais

Vocêtem duas opções:

.

1. chamarget_posts várias vezes: umapara aspáginaspai usando post__in=>Array (2,4) e doispara aspáginasfilho de cadapai com post_parent=>2 e post_parent=>4 e finalmentemesclartodos os resultadosem uma únicamatriz.

2. Escreva diretamente sua consulta SQLe use $ wpdb- >get_results .Ver este artigo porexemplo.No seu caso,seria algo semelhante ao seguinte código (nãotestado):

     $ query_sql="
       Selecione *
       Apartir de $ WPDB- & GT;posts
       Ondepost_type='produtos'
       E (IDem (2,4) oupost_parentem (2,4))
       Ordemporpost_date desc
   ";
   $ query_result=$ wpdb- >get_results ($ query_sql,objeto);
    

You have two options:

1. Call get_posts multiple times: one for the parent pages using post__in => array(2,4), and two for the child pages of each parent with post_parent => 2 and post_parent => 4 and finally merge all the results into a single array.

2. Write directly your SQL query and use $wpdb->get_results. See this article for an example. In your case it would be something similar to the following (not tested) code:

   $query_sql = "
       SELECT *
       FROM $wpdb->posts
       WHERE post_type = 'products'
       AND (ID IN (2,4) OR post_parent IN (2,4))
       ORDER BY post_date DESC
   ";
   $query_result = $wpdb->get_results($query_sql, OBJECT);
   

 $args = array('orderby' => 'date','order' => 'DESC','post_type' => 'products', 'include' => '2, 4');

// get the 2 and 4 posts
$children = get_posts($args);

// get the children of 2, and merge arrays
$children = array_merge($children,get_posts(array('orderby' => 'date','order' => 'DESC','post_type' => 'products','post_parent'=>2)));

// get the children of 4, and merge arrays
$children = array_merge($children,get_posts(array('orderby' => 'date','order' => 'DESC','post_type' => 'products','post_parent'=>4)));

foreach($children as $child){
    // etc
}
 

Embora sejamuitomaisfácil/mais rápido se vocêpudessemarcá-losem umataxonomiapersonalizada ouidentificá-los de outramaneirapara que você sóprecisasseprocurar uma coisa,em vez de 3 coisas.

e. Setivéssemos umataxonomiapersonalizada 'Destaque_Produtos',poderíamosfazer:

 $children = get_posts('post_type' => 'products', 'orderby' => 'date','order' => 'DESC','highlighted_products' => 'example_page');
foreach($children as $child){
    // etc
}
 

O que seriamuitomaisflexível,menospropensos aerros (ID 2e 4podemudar! Não hardbode),e émuitomais rápidoparafazer,sem sql oumúltiplas consultasbrutas. Semmencionar que você agoratem umaboa UI amigávelnobackend,ondebastamarcar umpost deprodutose apareceno lugar certo

$args = array('orderby' => 'date','order' => 'DESC','post_type' => 'products', 'include' => '2, 4');

// get the 2 and 4 posts
$children = get_posts($args);

// get the children of 2, and merge arrays
$children = array_merge($children,get_posts(array('orderby' => 'date','order' => 'DESC','post_type' => 'products','post_parent'=>2)));

// get the children of 4, and merge arrays
$children = array_merge($children,get_posts(array('orderby' => 'date','order' => 'DESC','post_type' => 'products','post_parent'=>4)));

foreach($children as $child){
    // etc
}

Although it would be much much easier/faster if you could tag them in a custom taxonomy or identify them some other way so that you were only needing to look for one thing, rather than 3 things.

e.g. if we had a custom taxonomy 'highlighted_products' we might do:

$children = get_posts('post_type' => 'products', 'orderby' => 'date','order' => 'DESC','highlighted_products' => 'example_page');
foreach($children as $child){
    // etc
}

Which would be far more flexible, less prone to errors ( ID 2 and 4 might change! Don't hardcode ), and it's a lot faster to do, no raw SQL or multiple queries. Not to mention that you now have a nice user friendly UI in the backend where you just tag a products post and it appears in the right place

  $ Childris=get_posts ('post_parent=slug_of_parent_post & amp;post_status=Publicar');
foreach ($filhos comofilho)
{
Echo '& Lt; BR/& GT; ID:' $ Child- & GT; ID;
}
 

Vocêpode usar outros atributos (isto é, $ Child- & GT; Post_Content ) ... Se vocêprecisar definirpost_type,adicioneeste argumentotambém: & amp;post_type=post_type_name

$children = get_posts('post_parent=SLUG_OF_PARENT_POST&post_status=publish');
foreach($children as $child)
{
echo '<br/>ID:'.$child->ID;
}

you can use other attributes (i.e. $child->post_content)... if you need to define post_type, then add this argument too : &post_type=POST_TYPE_NAME