🐛 Migration fails on large datasets (#1979)

Traewelling · Oct 13, 2023 · da9f42d · da9f42d
1 parent c9d4d1c
commit da9f42d
Showing 1 changed file with 23 additions and 8 deletions.
diff --git a/database/migrations/2023_09_23_162754_add-parent-to-polylines.php b/database/migrations/2023_09_23_162754_add-parent-to-polylines.php
@@ -3,20 +3,35 @@
 use Illuminate\Database\Migrations\Migration;
 use Illuminate\Database\Schema\Blueprint;
 use Illuminate\Support\Facades\Schema;
+use Symfony\Component\Console\Output\ConsoleOutput;
 
 return new class extends Migration
 {
     public function up(): void {
-        Schema::table('poly_lines', function(Blueprint $table) {
-            $table->unsignedBigInteger('parent_id')->nullable()->after('id');
-            $table->foreign('parent_id')->references('id')->on('poly_lines');
-        });
+        if (!Schema::hasColumn('poly_lines', 'parent_id')) {
+            Schema::table('poly_lines', function (Blueprint $table) {
+                $table->unsignedBigInteger('parent_id')->nullable()->after('id');
+                $table->foreign('parent_id')->references('id')->on('poly_lines');
+            });
+        } else {
+            $output = new ConsoleOutput();
+            $output->writeln("\nColumn already exists. Skipping.");
+        }
     }
 
     public function down(): void {
-        Schema::table('poly_lines', function(Blueprint $table) {
-            $table->dropForeign(['parent_id']);
-            $table->dropColumn('parent_id');
-        });
+        try {
+            Schema::table('poly_lines', function (Blueprint $table) {
+                $table->dropForeign(['parent_id']);
+                $table->dropColumn('parent_id');
+            });
+        } catch (\Throwable) {
+            $output = new ConsoleOutput();
+            $output->writeln("\nForeign key didn't exist. Dropping only column.");
+
+            Schema::table('poly_lines', function (Blueprint $table) {
+                $table->dropColumn('parent_id');
+            });
+        }
     }
 };