Fix installer when DB is empty (#12873)

(which is every time)

LibreNMS/Validations/Database.php

@@ -50,12 +50,24 @@ class Database extends BaseValidation
             return;
         }
 
+        $this->validateSystem($validator);
+
+        if ($this->checkSchemaVersion($validator)) {
+            $this->checkSchema($validator);
+            $this->checkCollation($validator);
+        }
+    }
+
+    public function validateSystem(Validator $validator)
+    {
         $this->checkVersion($validator);
         $this->checkMode($validator);
         $this->checkTime($validator);
         $this->checkMysqlEngine($validator);
+    }
 
-        // check database schema version
+    private function checkSchemaVersion(Validator $validator): bool
+    {
         $current = \LibreNMS\DB\Schema::getLegacySchema();
         $latest = 1000;
 
@@ -64,7 +76,7 @@ class Database extends BaseValidation
             if (! Schema::isCurrent()) {
                 $validator->fail('Your database is out of date!', './lnms migrate');
 
-                return;
+                return false;
             }
 
             $migrations = Schema::getUnexpectedMigrations();
@@ -78,13 +90,12 @@ class Database extends BaseValidation
                 'Manually run ./daily.sh, and check for any errors.'
             );
 
-            return;
+            return false;
         } elseif ($current > $latest) {
             $validator->warn("Your database schema ($current) is newer than expected ($latest). If you just switched to the stable release from the daily release, your database is in between releases and this will be resolved with the next release.");
         }
 
-        $this->checkCollation($validator);
-        $this->checkSchema($validator);
+        return true;
     }
 
     private function checkVersion(Validator $validator)

app/Http/Controllers/Install/DatabaseController.php

@@ -31,6 +31,7 @@ use LibreNMS\DB\Eloquent;
 use LibreNMS\DB\Schema;
 use LibreNMS\Interfaces\InstallerStep;
 use LibreNMS\ValidationResult;
+use LibreNMS\Validations\Database;
 use LibreNMS\Validator;
 use Symfony\Component\HttpFoundation\StreamedResponse;
 
@@ -75,7 +76,7 @@ class DatabaseController extends InstallationController implements InstallerStep
 
             // validate Database
             $validator = new Validator();
-            $validator->validate(['database']);
+            (new Database())->validateSystem($validator);
             $results = $validator->getResults('database');
 
             /** @var \LibreNMS\ValidationResult $result */