Check combination of values in Laravel

Question

I have three columns (input1, input2, input3), I need to compare them and check that there is not a combination of the values already registered in the database.

I need to return true when they are all the same or when they are all different. In intermediate cases, return false.

I tried:

public function check($input1, $input2, $input3) {
    if (Model::where('input1', 'LIKE', $input1)->where('input2', 'LIKE', $input2)->where('input3', '=', $input3)->exists()) {
        return false;
    } else {
        if (Model::where('input1', '=', $input1)->where('input3', '!=', $input3)->exists()) {
            return true;
        }

        if (Model::where('input1', '!=', $input1)->where('input3', '=', $input3)->exists()) {
            return true;
        }

        if (Model::where('input1', '=', $input1)->where('input3', '=', $input3)->exists()) {
            return true;
        }
    }  
}

Not being met when input1 and input3 are registered, but no input2 is found in the table.

How can I solve it, the idea is to compare the three inputs.

Thanks!

UPDATE:

I tried:

public function check($input1, $input2, $input3) {
        if (Model::where('input1', '=', $input1)->where('input3', '!=', $input3)->exists()) {
            return true;
        }
        if (Model::where('input1', '!=', $input1)->where('input3', '=', $input3)->exists()) {
            return true;
        }
        if (Model::where('input1', '=', $input1)->where('input3', '=', $input3)->exists()) {
            return true;
        }
        if (Model::where('input1', '!=', $input1)->where('input3', '!=', $input3)->exists()) {
            return false;
        }
}

I need to correct the above so that I can validate when all three values match a record.

UPDATE:

I need to validate according to the image

UPDATE:

is an example of what i need to do

UPDATE:

A resolution strategy could be, to verify only the cases when the three values coincide completely or when they are totally different

public function check($input1, $input2, $input3)
{            
    // initialization
    $temp1=true;
    $temp1=true;
    
    if (Model::where('input1', '=' ,$input1)->whereDate('input2', '=' ,$input2)->where('input3', '=' ,$input3)->exists()){
        return true;
    } else {
        $temp1=false;
    }
    
    if ($temp1=false && Model::where('input1', '!=' ,$input1)->whereDate('input2', '!=' ,$input2)->where('input3', '!=' ,$input3)->exists()){
        return true;
    } else {
        $temp2=false;
    }
    
    if ($temp1=false && $temp2=false){
        return false;
    }
}

Answer 1

Okay, you can do it in one simple query, what you want (logically speaking) is an SQL query like:

SELECT *
FROM table
WHERE (
    (value1 = ?) OR
    (value2 = ?) OR
    (value3 = ?)
)

If this returns 1 row or more, then you want to return false. So, you can take advantage of exists method. It will use EXISTS SQL method or whatever is called.

So, you can do 2 different things, the first one I am going to show is the same you are doing, but I don't know if you are using this in a controller, so you could use it in a FormRequest or validator.

---

Your way

public function check($value1, $value2, $value3)
{
   return !Model::where('value1', $value1)->where('value2', $value2)->where('value3', $value3)->exists();
}

See that I wrote ! before Clientes, so if these data exists, exists() will return true, but you want to opposite in this case.

Another way

Now, if you want to use it in a validator or a FormRequest, where you write the rules, you should have something like this:

use Illuminate\Support\Facades\Validator;

Validator::validate(
    [
        'value1' => $value1,
        'value2' => $value2,
        'value3' => $value3,
    ],
    [
        'value1' => 'unique:clientes',
        'value2' => 'unique:clientes',
        'value3' => 'unique:clientes',
    ]
);

Take in mind that, to do the inverse of exists, we use unique. If any of the values exist, then it will throw an error and return to the view (but this should only be used in Controllers or FormRequests (rules, not validator literally)).

---

Update:

To have a better code, do this:

public function check($input1, $input2, $input3)
{
    if (Model::where('input1', $input1)->whereDate('input2', $input2)->where('input3', $input3)->exists()) {
        return true;
    } else if (Model::where('input1', '!=', $input1)->whereDate('input2', '!=', $input2)->where('input3', '!=', $input3)->exists()) {
        return true;
    }

    return false;
}

Still, this query could get better just doing one into two, but I am not 100% sure how to write that now.

And still makes not much sense (at least to me) to check if it exactly matches a row (at least with some fields), or totally the opposite, don't match any row with those values. It is a XOR gate but makes no sense.