Order By with have_post wordpress - php

Question

I have ids of some posts id array that have higher priority for me.
Now on listing all posts i want that array ids should come first then all other ids post.
I have logic set for that order by like i have array with two ids (15,19) then i want those two post first then other all id posts should come.
My logic is below and it works well.
ORDER BY CASE
WHEN id IN(15,19) THEN 0
ELSE id
END
But how can i add this logic with have_posts loop order by.
Please help me.

Answer 1

Thinking fast about it I would make two loops, one with the posts you want fixed in the beginning and the second with the rest of the posts like this:
$fixed = array(8,14);
//gets only the posts with IDs 8 and 14
$fixed_args = array(
'post__in' => $fixed
);
$fixed_query = new WP_Query($fixed_args);
if($fixed_query->have_posts()){
while ($fixed_query->have_posts()){
$fixed_query->the_post();
the_title();
the_content();
}
}
//excludes the posts with IDs 8 and 14
$query_args = array(
'post__not_in' => $fixed
);
$the_query = new WP_Query($query_args);
if($the_query->have_posts()){
while ($the_query->have_posts()){
$the_query->the_post();
the_title();
the_content();
}
}
I don't know if there is a way to do this in just one simple loop, but I will look into it and update if I find anything.