Display Only Certain Category In a Custom Page Template

Question

I have a Page in Wordpress that is a Blog Page Template. Now my issue is that it displays ALL the posts. I only want it to display posts assigned to a certain category

How do I do that?

Here is my blog.php page: I guess you have to edit it here right?

/*
Template Name: Blog page
*/

$gogo_blog_text_no_posts = get_post_meta($post->ID, 'gogo_blog_text_no_posts', true);

$temp = $wp_query;
$wp_query= null;
$wp_query = new WP_Query();
$wp_query->query('posts_per_page='.$gogo_blog_text_no_posts.'&paged='.$paged); 
$postcount = 0;
while ($wp_query->have_posts()) : $wp_query->the_post(); $postcount++;

//the loop goes here

$wp_query= null;
$temp = $wp_query;
?>

Answer 1

Not sure what $gogo_blog_text_no_posts is but you should be able to change this:

$wp_query->query('posts_per_page='.$gogo_blog_text_no_posts.'&paged='.$paged);

to

$wp_query->query('posts_per_page='.$gogo_blog_text_no_posts.'&paged='.$paged.'&cat=1');

See WP_Query Codex