Symfony/Doctrine - Search

Question

could someone help me with basic search? I just can't figure it out. My search works only if I type 1 word. But if I type 2,3,4,... words it doesn't work.

Example : POLYKARBONÁTOVÉ POUZDRO NA MACBOOK (Polycarbonate cover for Macbook)

If I type to search input just "pouzdro" it returns all covers. If I type "Polykarbonátové pouzdro" it return nothing. If I type "Polykarbonátové" it returns nothing.

Here is my code:

    if ($keyword != null) {
        $keyword = strtolower(preg_replace('/\p{Mn}/u', '', \Normalizer::normalize($keyword, \Normalizer::FORM_KD)));
        $keywords = explode(' ', $keyword);
        $i = 0;
        foreach ($keywords as $key) {
            $i++;
            if ($i == 1) {
                $qb->where("p.title LIKE :keyword$i");
            } else {
                $qb->andWhere("p.title LIKE :keyword$i");
            }
            $qb->setParameter("keyword$i", "%" . $key . "%");
        }
    }

Thank you :)

EDIT: Query from the log(I am using postgresql):

[2016-10-26 16:47:11] doctrine.DEBUG: SELECT p0_.id AS id_0, p0_.serial_number AS serial_number_1, p0_.title AS title_2, p0_.url AS url_3, p0_.note AS note_4, p0_.views AS views_5, p0_.price AS price_6, p0_.bought_price AS bought_price_7, p0_.old_price AS old_price_8, p0_.is_active AS is_active_9, p0_.is_accessory AS is_accessory_10, p0_.is_special AS is_special_11, p0_.quantity AS quantity_12, p0_.created_at AS created_at_13, p0_.updated_at AS updated_at_14, p0_.details_id AS details_id_15, p0_.accessory_category_id AS accessory_category_id_16 FROM products p0_ WHERE p0_.title LIKE ? ["%polykarbonatove%"] []

[2016-10-26 16:53:52] doctrine.DEBUG: SELECT p0_.id AS id_0, p0_.serial_number AS serial_number_1, p0_.title AS title_2, p0_.url AS url_3, p0_.note AS note_4, p0_.views AS views_5, p0_.price AS price_6, p0_.bought_price AS bought_price_7, p0_.old_price AS old_price_8, p0_.is_active AS is_active_9, p0_.is_accessory AS is_accessory_10, p0_.is_special AS is_special_11, p0_.quantity AS quantity_12, p0_.created_at AS created_at_13, p0_.updated_at AS updated_at_14, p0_.details_id AS details_id_15, p0_.accessory_category_id AS accessory_category_id_16 FROM products p0_ WHERE p0_.title LIKE ? AND p0_.title LIKE ? ["%polykarbonatove%","%pouzdro%"] []

Answer 1

So,

1. You don't really need this

    LOWER() // LIKE is not case sensitive 

2. Try to clear your code, you should code on this way

    foreach ($keywords as $key) { $i++; if ($i == 1) { $qb->where("p.title LIKE :keyword$i"); } else { $qb->andWhere("p.title LIKE :keyword$i"); } $qb->setParameter("keyword$i", "%" . $key . "%"); } 

3. Can you open the log file and give us the real query which doctrine tried (var/cache/logs/dev.log)

Answer 2

The problem you encountered isn't about the number of searched terms, but about accents.

If you want to perform a search without accents, you can change the collation to utf8_general_ci , which is accent insensitive.

To change the collation with Doctrine, you'll have to implement a custom DQL function, as explained here and implemented in this answer from hattila :

namespace MyCompany\MyBundle\DQL;

use Doctrine\ORM\Query\AST\Functions\FunctionNode;
use Doctrine\ORM\Query\Lexer;

class CollateFunction extends FunctionNode
{
    public $expressionToCollate = null;
    public $collation = null;

    public function parse(\Doctrine\ORM\Query\Parser $parser)
    {
        $parser->match(Lexer::T_IDENTIFIER);
        $parser->match(Lexer::T_OPEN_PARENTHESIS);
        $this->expressionToCollate = $parser->StringPrimary();

        $parser->match(Lexer::T_COMMA);

        $parser->match(Lexer::T_IDENTIFIER);
        $lexer = $parser->getLexer();
        $this->collation = $lexer->token['value'];

        $parser->match(Lexer::T_CLOSE_PARENTHESIS);
    }

    public function getSql(\Doctrine\ORM\Query\SqlWalker $sqlWalker)
    {
        return sprintf( '%s COLLATE %s', $this->expressionToCollate->dispatch($sqlWalker), $this->collation );
    }
}

Then add it to Symfony as explained here .