WP_Query Ignoring `post_type` parameter

Question

<?php
    $args = array(
        'post_type'=>'weather_today',
        'orderby'=>'ID',
        'order'=>'ASC',
        'posts_per_page'=>1
    );
    $query = new WP_Query($args);
    if ($query->have_posts()) {
        while ( have_posts() ) : the_post();
            the_content();
        endwhile;
    }
    wp_reset_postdata();
?>

Outputs a post content (the_content()) that is not of a weather_today type. Why is this? I checked my SQL, in wp_posts I only have one post of post_type = "weather_today" and it's not the one being outputted. This query is up in my header... and I believe above any other custom queries. Furthermore, it seems the other params are respected, the post I am getting is only 1 and is that last regular post by ID.

So why is the post_type, the most important param in this query, being ignored?

Answer 1

Try this

<?php
    $args = array(
        'post_type'=>'weather_today',
        'orderby'=>'ID',
        'order'=>'ASC',
        'posts_per_page'=>1
    );
    $query = new WP_Query( $args );
    while ( $query->have_posts() ) : $query->the_post();

        //loop 

    endwhile;
    wp_reset_postdata();
?>

Answer 2

The problem with your code is pretty simple... You use your custom $query in if statement, but then you use global $wp_query in while loop...

<?php
    $args = array(
        'post_type'=>'weather_today',
        'orderby'=>'ID',
        'order'=>'ASC',
        'posts_per_page'=>1
    );
    $query = new WP_Query($args);  // <- here you create custom $query
    if ($query->have_posts()) {  // <- here you check if it has any posts
        while ( have_posts() ) : the_post(); // <- here you don't use it
        // it should be:  while ( $query->have_posts() ) : $query->the_post();
            the_content();
        endwhile;
    }
    wp_reset_postdata();
?>

PS. Another suggestion - don't use { and : notation in same context - it's bad for readability ;)