Laravel postgres sql Case Insensitive Like

问题

I have a postgres sql query in Laravel :

$_query = Article::join('users', 'articles.user_id', '=', 'users.id')
                    ->select('users.*','articles.*');                           
if( array_key_exists('title', $parameters) && $parameters['title'] != '' )       
        $_query->whereRaw( " LOWER(nbl_region_ref.region) like LOWER('%?%')", array( trim($parameters['region']) ) );
$result = $_query->get();

Output/Error: 'PDOException' with message 'SQLSTATE[42P18]: Indeterminate datatype: 7 ERROR: could not determine data type of parameter $2'

Tried Query builder :

$_query= DB::select("select users.*, articles.* from articles")
                ->join('users', 'articles.user_id', '=', 'users.id');
if( array_key_exists('title', $parameters) && $parameters['title'] != '' )       
            $_query->where( "articles.title","ILIKE", array( trim($parameters['title']) ) );
    $result = $_query->get();

Output : Invalid FROM.. table not found

Tried ILike (Based on a similar question without a join)

$_query = Article::join('users', 'articles.user_id', '=', 'users.id')
                ->select('users.*','articles.*');                           
if( array_key_exists('title', $parameters) && $parameters['title'] != '' )       
                $_query->where( "articles.title","ILIKE", array( trim($parameters['title']) ) );

Output : Empty array

Tried :

 $_query = Article::join('users', 'articles.user_id', '=', 'users.id')
                        ->select('users.*','articles.*');                           

$_query->where( function ( $_queryTemp ) use ( $parameters ) {
if( array_key_exists('title', $parameters) && $parameters['title'] != '' )       
            $_query->whereRaw( " LOWER(nbl_region_ref.region) like LOWER('%?%')", array( trim($parameters['region']) ) );
});

Output/Error: 'PDOException' with message 'SQLSTATE[42P18]: Indeterminate datatype: 7 ERROR: could not determine data type of parameter $2'

I have to make a case-insensitive search query based on the input parameter.

回答1:

Your third attempt looks like what you want. Based on your first and last attempt, it looks like you want your search text wrapped in '%'. Since you didn't do this for your third attempt, I'm assuming that's why your query didn't find any results (empty array).

Query should be:

$_query = Article::join('users', 'articles.user_id', '=', 'users.id')
    ->select('users.*','articles.*');
if (array_key_exists('title', $parameters) && $parameters['title'] != '') {
    $_query->where('articles.title', 'ILIKE', '%'.trim($parameters['title']).'%');
}

回答2:

Using ILIKE instead of LIKE solved it for me

来源：https://stackoverflow.com/questions/29888874/laravel-postgres-sql-case-insensitive-like

标签

php

laravel

laravel-5

psql

case-insensitive