Wordpress: the_excerpt not working - wordpress

Question

I recently updated wordpress and now all content is outputting for this module, except "the_excerpt()"
<?php
function blog_feed_content(){
?>
<ul id="blog_list" class="jscroll">
<?php
global $post;
$args = array('category' => 4 );
$myposts = get_posts( $args );
foreach( $myposts as $post ) : setup_postdata($post); ?>
<li class="post clearfix" id="post-<?php the_ID(); ?>">
<div class="post-content clearfix">
<h2 class="post-title"><?php the_title(); ?></h2>
<div class="post-date"><?php the_time('F Y') ?></div>
<div class="post-text">
<?php the_excerpt(); ?>
</div>
</div>
</li>
<?php endforeach; ?>
</ul>
<?php
}
function widget_blog_feed($args){
extract($args);
echo $before_widget;
echo $before_title;?>Blog Feed<?php echo $after_title;
blog_feed_content();
echo $after_widget;
}
function init_blog_feed() {
register_sidebar_widget(__('blog_widget'), 'widget_blog_feed');
}
add_action("plugins_loaded", "init_blog_feed");
?>
Why on earth isn't it outputting this one piece of content?
YOU'RE ALL AWESOME. Thanks.

Answer 1

setup_postdata is not exactly the same as using a normal WP_Query with the_post() so not all template tags work as expected with this method of displaying posts.
You should rewrite the code to use a custom WP_Query and traditional Loop rather than using a foreach to iterate through post objects.
Something like:
$myposts = new WP_Query('cat=4');
if( $myposts->have_posts() ) : while( $myposts->have_posts() ) : $myposts->the_post(); ?>
<li class="post clearfix" id="post-<?php the_ID(); ?>">
<div class="post-content clearfix">
<h2 class="post-title"><?php the_title(); ?></h2>
<div class="post-date"><?php the_time('F Y') ?></div>
<div class="post-text">
<?php the_excerpt(); ?>
</div>
</div>
</li>
<?php endwhile;
wp_reset_query;
endif; ?>
That should point you in the right direction. If you are set on sticking with the foreach and get_posts method you could always use some simple string functions (i.e. substr() to truncate a little excerpt from the post_content property of the $post object, like replacing the <?php the_content(); ?> line with:
<?php echo substr($post->the_content, 0, 80); // displays first 80 chars of post ?>

Answer 2

you should define id.
<?php echo get_the_excerpt($post->ID); ?