logic to metaquery

evnt-date-logic.php

<?php

/*
front page archive
**/

//Other necessary code here

if ( have_posts() ) : 
while ( have_posts() ) : the_post();

	$eventstartdate = get_post_meta($post->ID, 'event_from_textdate', true); //not unix timestamp
	$eventenddate =  get_post_meta($post->ID, 'event_till_textdate', true);  //not unix timestamp
	
	$unix_event_start = get_post_meta($post->ID, 'event_from_textdate_unix', true); //unix timestamp
	$unix_event_end = get_post_meta($post->ID, 'event_till_textdate_unix', true); //unix timestamp
	
	$todaydate = date('j F Y');
	$todaydate = strtotime($todaydate); // today's date in unix timestamp			
				
	/*****
	To insert unix stamp in new meta if not available
	********************************************************/
		
	if($unix_event_start == "" || $unix_event_end == "") {
		$timestamp_start = strtotime( $eventstartdate );
		$timestamp_end = strtotime( $eventenddate );
		
		update_post_meta($post->ID, 'event_from_textdate_unix', $timestamp_start );	
		update_post_meta($post->ID, 'event_till_textdate_unix', $timestamp_end );	
		
		$unix_event_start = get_post_meta($post->ID, 'event_from_textdate_unix', true);
		$unix_event_end = get_post_meta($post->ID, 'event_till_textdate_unix', true);
	}
	
	/******
	Converting date to desired format 
	**************************************/
	
	$eventstartdate = gmdate("l, M j, Y", $unix_version_start);
	$eventenddate = gmdate("l, M j, Y", $unix_version_end);
	
	
	/***
	Check Offer Date logic
	************************/
	if( ($unix_event_end >= $todaydate && $todaydate >= $unix_event_start) 
	    || ($todaydate < $unix_event_start && $todaydate < $unix_event_end) ) {
	
		printf( '<article %s>', genesis_attr( 'entry' ) );
		
		// stuff
		
		echo '</article>';
	}
	
	do_action( 'genesis_after_entry' );

endwhile; //* end of one post
do_action( 'genesis_after_endwhile' );

else : //* if no posts exist
do_action( 'genesis_loop_else' );

endif; //* end loop

//Other necessary code here