Laravel Eloquent 查询

Question

I need help with Eloquent. When i tried searching for manufacturer name it returns nothing, but if i try searching for manufacturer or name , it returns me some results.

My current table structure is:

Product:

 manufacturer_id, FK id on manufacturer

 model_id, FK id id on model

Manufacturer:

 id
 name

Model:

 id
 manufacturer_id, FK id on manufacturer
 name

My code is as such:

    $q = Input::get("query");
    $words = str_replace(" ", "%", $q);

    $cars = Product::whereHas('model', function ($query) use ($words) {
        $query->where('name', 'like', "%$words%");
    })->orWhereHas('manufacturer', function ($query) use ($words) {
        $query->where('name', 'like', "%$words%");
    })->get();

Please help me, I'm really new at this.

Answer 1

Try it like this.

$query->where('name', 'like', '%' . $words . '%);

Answer 2

use this.

$cars = Product::whereHas('model', function ($query) use ($words) {
        $query->where('name', 'like', '%' . $words . '%');
    })->orWhereHas('manufacturer', function ($query) use ($words) {
        $query->where('name', 'like', '%' . $words . '%');
    })->get();

as you're using "%$words%" it'll not take any value.

"%{$words}%" or '%'. $words. '%' '%'. $words. '%' '%'. $words. '%' you can use this as well.

Answer 3

I am not sure why are you doing this:

$words = str_replace(" ", "%", $q);

because later on you are anyway adding "%" with $words variable. So do it like this:

$words = trim(Input::get("query"));

$cars = Product::whereHas('model', function ($query) use ($words) {
    $query->where('name', 'like', "%$words%");
})->orWhereHas('manufacturer', function ($query) use ($words) {
    $query->where('name', 'like', "%$words%");
})->get();

This should work for single words search. Now if you want to match multiple words, seperated by space, you will need to use explode() to actually get each word and write a OR AND WHERE combination to match results. OR you can use MYSQL FULL TEXT QUERY but that is outside of the scope of this question.

Please ask a separate question for that.

I hope it helps

Answer 4

Use concatenation, like this:

$query->where('name', 'like', '%' . $words . '%);

Instead this:

$query->where('name', 'like', "%$words%");

Answer 5

Try this one

$query->Where('column_name', 'LIKE', '%' . $value . '%')