First Commit

app/Console/Commands/DbRelationshipsCommand.php

@@ -0,0 +1,71 @@
+<?php
+
+namespace App\Console\Commands;
+
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+use Illuminate\Database\Capsule\Manager as Capsule;
+use Symfony\Component\Console\Helper\Table;
+
+class DbRelationshipsCommand extends Command
+{
+    protected static $defaultName = 'db:relationships';
+    protected static $defaultDescription = 'Exibe as chaves estrangeiras de uma tabela';
+
+    protected function configure(): void
+    {
+        $this
+            ->addArgument('table', InputArgument::REQUIRED, 'O nome da tabela');
+    }
+
+    protected function execute(InputInterface $input, OutputInterface $output): int
+    {
+        $tableName = $input->getArgument('table');
+        $connection = Capsule::connection();
+        $dbName = $connection->getDatabaseName();
+
+        $output->writeln("<info>Chaves Estrangeiras da Tabela: {$tableName}</info>");
+
+        try {
+            $query = "
+                SELECT 
+                    COLUMN_NAME, 
+                    CONSTRAINT_NAME, 
+                    REFERENCED_TABLE_NAME, 
+                    REFERENCED_COLUMN_NAME 
+                FROM 
+                    INFORMATION_SCHEMA.KEY_COLUMN_USAGE 
+                WHERE 
+                    TABLE_SCHEMA = ? AND 
+                    TABLE_NAME = ? AND 
+                    REFERENCED_TABLE_NAME IS NOT NULL";
+
+            $relationships = $connection->select($query, [$dbName, $tableName]);
+
+            if (empty($relationships)) {
+                $output->writeln('<comment>Nenhuma chave estrangeira encontrada para esta tabela.</comment>');
+                return Command::SUCCESS;
+            }
+
+            $table = new Table($output);
+            $table->setHeaders(['Coluna', 'Constraint', 'Tabela Referenciada', 'Coluna Referenciada']);
+
+            foreach ($relationships as $rel) {
+                $table->addRow([
+                    $rel->COLUMN_NAME,
+                    $rel->CONSTRAINT_NAME,
+                    $rel->REFERENCED_TABLE_NAME,
+                    $rel->REFERENCED_COLUMN_NAME
+                ]);
+            }
+
+            $table->render();
+            return Command::SUCCESS;
+        } catch (\Exception $e) {
+            $output->writeln("<error>Erro ao buscar relacionamentos: " . $e->getMessage() . "</error>");
+            return Command::FAILURE;
+        }
+    }
+}