I am trying to create a logic based on 3 logical statements and deppending on those conditions being met, I want to use a different type of post loop.

This is my code:

            if ( $filter_option == 'popular' ) {
                // The WP_Query for most popular posts!
                $popularpost = new WP_Query( array( 
                    'post_type' => 'eshop', 
                    'meta_key' => 'post_views_count', 
                    'orderby' => 'meta_value_num', 
                    'order' => 'DESC'  
                ) );
                if($popularpost->have_posts() ) :
                    while ( $popularpost->have_posts() ) : 
                        $popularpost->the_post();

                //Call structure for content blocks.
                get_template_part( 'template-parts/content-katigoria-katastimata', get_post_type() );

                endwhile;

                endif;

            } elseif ( $filter_option == 'recent' ) {
                // The WP_Query for most recent posts!
                $the_query = new WP_Query( array(
                    'post_type'=> 'eshop',
                    'orderby'=> 'date', 
                    'order' => 'DESC'
                ) );
                if($the_query->have_posts() ) : 
                    while ( $the_query->have_posts() ) : 
                        $the_query->the_post();

                //Call structure for content blocks.
                get_template_part( 'template-parts/content-katigoria-katastimata', get_post_type() );

                endwhile;

                endif;      

            } else {
                if ( have_posts() ) :
                    while ( have_posts() ) :
                        the_post();

                //Call structure for content blocks.
                get_template_part( 'template-parts/content-katigoria-katastimata', get_post_type() );

                endwhile;

                endif;

            }

In the code above, I am simply checking with an if,elseif,else statement structure for the three pottential values that can be stored in the $filter_option variable. The code inside the logical statements, are WP_Queries where each condition has a different query. All three condition are what wordpress reffers to as a post loop.

Problems:

• This piece of code doesn’t return any post content as a result.

Notes:

• I have checked if the post_type is correct and I can confirm that it is.
• Using only the post loop found inside the else statement, works fine and returns post content.

Questions:

• How can I reform or rewritte this piece of code to suit my case?

Thanks in advance for you help!