URL prefix for posts WordPress

 

So I have website on a WordPress engine. And I want to make posts urls looks like coderfunda.blogspot.com or http://coderfunda.blogspot.com/blog/categ-name/post-name/. But everything else will look like http://website.com/page-name/. Just want to add prefix 'blog' to urls for all posts but not pages. My permalink settings is /%postname%/. If i will put /blog/%postname%/ I will have 'blog' prefix in every URL of my site :( I can't find solution in WordPress admin backend and I didn't find any acceptable plugin for this. Any help is appreciated, thanks.

Create a category called blog and use the permalink structure /%category%/%postname%/.

1) Add this rewrite at the end of you function.php

function add_rewrite_rules( $wp_rewrite )
{
    $new_rules = array(
        'blog/(.+?)/?$' => 'index.php?post_type=post&name='. $wp_rewrite->preg_index(1),
    );

    $wp_rewrite->rules = $new_rules + $wp_rewrite->rules;
}
add_action('generate_rewrite_rules', 'add_rewrite_rules'); 

function change_blog_links($post_link, $id=0){

    $post = get_post($id);

    if( is_object($post) && $post->post_type == 'post'){
        return home_url('/blog/'. $post->post_name.'/');
    }

    return $post_link;
}
add_filter('post_link', 'change_blog_links', 1, 3);

2) Go to Settings > Permalinks and click Save Changes.