PDO wrong bindings with Laravel - mysql

Question

I have a search query that works perfect (I stripped some unimportant code):
$posts = new Post;
if(Input::has('query')) {
// Search for posts with title or tags matching the given criteria
$posts = $posts
->addSelect(DB::raw("MATCH(posts.title) AGAINST (?) as post_score"))
->addSelect(DB::raw("MATCH(tags.title) AGAINST (?) as tag_score"))
->where(function($query) {
return $query
->whereRaw('MATCH(posts.title) AGAINST (?)')
->orWhereRaw('MATCH(tags.title) AGAINST (?)');
})
->orderBy(DB::raw('post_score+tag_score'), 'desc')
->setBindings([ $input['query'], $input['query'], $input['query'], $input['query'] ]);
}
But as soon as I add this piece of code before the above if() statement:
if(Input::has('filter')) {
$posts = $posts->whereType($input['filter']); //Filter type by either 'article' or 'question'
}
... I get this error:
[2014-11-04 19:28:18] production.ERROR: PDO error: SQLSTATE[HY093]: Invalid parameter number (SQL: select `posts`.*, COALESCE(SUM(post_votes.rating), 0) as rating, MATCH(posts.title) AGAINST (css) as post_score, MATCH(tags.title) AGAINST (css) as tag_score from `posts` left join `post_tags` on `post_tags`.`post_id` = `posts`.`id` left join `tags` on `tags`.`id` = `post_tags`.`tag_id` left join `post_votes` on `post_votes`.`post_id` = `posts`.`id` where `type` = css and (MATCH(posts.title) AGAINST (css) or MATCH(tags.title) AGAINST (?)) group by `posts`.`id` order by post_score+tag_score desc, `views` desc) [] []
I entered css as search query, the type should be filtered on question. As you can see the variables aren't binded right (don't know the right word for this). How could this be? I also tried this which doesn't work:
->where(function($query) use ($input) {
return $query
->whereRaw('MATCH(posts.title) AGAINST (?)', [$input['query']])
->orWhereRaw('MATCH(tags.title) AGAINST (?)', [$input['query']]);
})
Thanks in advance.

Answer 1

This is what you need:
if(Input::has('filter')) {
$posts->whereType($input['filter']); //Filter type by either 'article' or 'question'
}
if(Input::has('query')) {
// no need for this:
// $posts = $posts
// just:
$posts
->addSelect(DB::raw("MATCH(posts.title) AGAINST (?) as post_score"))
->addBinding($input['query'], 'select')
->addSelect(DB::raw("MATCH(tags.title) AGAINST (?) as tag_score"))
->addBinding($input['query'], 'select')
->where(function($query) use ($input) {
$query
->whereRaw('MATCH(posts.title) AGAINST (?)', [$input['query']])
->orWhereRaw('MATCH(tags.title) AGAINST (?)', [$input['query']]);
})
->orderBy(DB::raw('post_score+tag_score'), 'desc')
}