使用重音符号查询 Doctrine + Symfony + PostgreSQL

Question

I have a method in Doctrine repository to search a person like this:

 function search($value)
{
    $qb = $this->createQueryBuilder('p');
    $qb->where($qb->expr()->like(
        'LOWER(p.lastName)',
        "'%" . mb_strtolower($value) . "%'"));
}

Example:

No	Name	Last name
1	Luis	Sanchez
2	David	Sánchez

When I use this method and the input is 'Sanchez' only returns record No. 1, and if the input is 'Sánchez' only returns record No. 2 (Change a for á). I need to get all records from my database no matter if the input contains any accent mark (á, é, í, ó, ú).

Answer 1

That function could be solution for your problem unaccent .

And example code here:

CREATE TABLE p (
    last_name varchar(40) NOT NULL    
);

INSERT INTO p VALUES ('Sanchez');
INSERT INTO p VALUES ('Sánchez');

SELECT p.last_name FROM p WHERE unaccent(p.last_name) LIKE CONCAT('%', unaccent('Sánchez'), '%');
SELECT p.last_name FROM p WHERE unaccent(p.last_name) LIKE CONCAT('%', unaccent('Sanchez'), '%');

And the results:

last_name
Sanchez
Sánchez

last_name
Sanchez
Sánchez