Get Laravel Model->save() error code or message - php

Question

laravel Model->save() does not throw database exception and i want to check unique constraint for a column (no primary key or other forign keys).
is there any way to get database error code of message when Model->save() return false?

Answer 1

You can try QueryException. to catch any SQL syntax or query errors.
use Illuminate\Database\QueryException
try {
$model = Model::find($id);
$model->name = 'joe';
$model->save();
} catch (QueryException $e) {
dd($e->getMessage());
}

Answer 2

You can use column "UNIQUE" in database , then error handle by QueryException.

Answer 3

=> If you have label exists, See below error:
"Exception message:SQLSTATE[23000]: Integrity constraint violation: 1062 Duplicate entry 'TEST GO' for key 'materials_label_unique' (SQL: insert into `materials` (`label`, `updated_at`, `created_at`) values (TEST GO, 2019-08-27 09:53:47, 2019-08-27 09:53:47)) with code: 23000"
function insertMaterial()
{
try {
$material = new Materials;
$material->label = "TEST GO";
if( $material->save() ) {
return "True as a string";
} else {
return "False as a string";
}
} catch (\Exception $e) {
return 'Exception message:' . $e->getMessage() . ' with code: ' . $e->getCode();
}
}
=> If you'll try to find the non-existing record, See below error:
"Exception message: Creating default object from the empty value with code: 0"
function insertMaterial()
{
try {
$material = Materials::find(1111);
$material->label = "TEST GO";
if( $material->save() ) {
return "True as a String";
} else {
return "False as a String";
}
} catch (\Exception $e) {
return 'Exception message:' . $e->getMessage() . ' with code: ' . $e->getCode();
}
}