diff --git a/database/migrations/2026_02_11_143010_add_foreign_key_item_id_column_to_production_plans.php b/database/migrations/2026_02_11_143010_add_foreign_key_item_id_column_to_production_plans.php
new file mode 100644
index 0000000..6f5cd56
--- /dev/null
+++ b/database/migrations/2026_02_11_143010_add_foreign_key_item_id_column_to_production_plans.php
@@ -0,0 +1,49 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        $sql = <<<'SQL'
+            ALTER TABLE production_plans
+            ADD COLUMN item_id BIGINT DEFAULT NULL,
+            ADD CONSTRAINT production_plans_item_id_fkey
+            FOREIGN KEY (item_id) REFERENCES items(id);
+        SQL;
+
+        DB::statement($sql);
+
+        $sql1 = <<<'SQL'
+        ALTER TABLE production_plans
+        ADD COLUMN working_days TEXT DEFAULT NULL
+        SQL;
+
+        DB::statement($sql1);
+
+        $sql2 = <<<'SQL'
+        ALTER TABLE production_plans
+        ADD COLUMN leave_dates TEXT DEFAULT NULL
+        SQL;
+
+        DB::statement($sql2);
+
+
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        // Schema::table('production_plans', function (Blueprint $table) {
+        //     //
+        // });
+    }
+};
diff --git a/database/migrations/2026_02_11_152430_add_foreign_key_block_id_column_to_lines.php b/database/migrations/2026_02_11_152430_add_foreign_key_block_id_column_to_lines.php
new file mode 100644
index 0000000..de9525a
--- /dev/null
+++ b/database/migrations/2026_02_11_152430_add_foreign_key_block_id_column_to_lines.php
@@ -0,0 +1,40 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        $sql = <<<'SQL'
+            ALTER TABLE lines
+            ADD COLUMN block_id BIGINT DEFAULT NULL,
+            ADD CONSTRAINT lines_block_id_fkey
+            FOREIGN KEY (block_id) REFERENCES blocks(id);
+        SQL;
+
+        DB::statement($sql);
+
+        $sql1 = <<<'SQL'
+        ALTER TABLE lines
+        ADD COLUMN line_capacity TEXT DEFAULT NULL
+        SQL;
+
+        DB::statement($sql1);
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        // Schema::table('lines', function (Blueprint $table) {
+        //     //
+        // });
+    }
+};
diff --git a/database/migrations/2026_02_11_154426_add_foreign_key_line_id_and_line_capacity_column_to_items.php b/database/migrations/2026_02_11_154426_add_foreign_key_line_id_and_line_capacity_column_to_items.php
new file mode 100644
index 0000000..8df5923
--- /dev/null
+++ b/database/migrations/2026_02_11_154426_add_foreign_key_line_id_and_line_capacity_column_to_items.php
@@ -0,0 +1,34 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        $sql1 = <<<'SQL'
+            ALTER TABLE items
+            ADD COLUMN line_id BIGINT DEFAULT NULL,
+            ADD CONSTRAINT items_line_id_fkey
+            FOREIGN KEY (line_id) REFERENCES lines(id);
+        SQL;
+
+        DB::statement($sql1);
+
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        // Schema::table('items', function (Blueprint $table) {
+        //     //
+        // });
+    }
+};
diff --git a/database/migrations/2026_02_12_082253_add_foreign_key_machine_id_to_production_quantities.php b/database/migrations/2026_02_12_082253_add_foreign_key_machine_id_to_production_quantities.php
new file mode 100644
index 0000000..a3fbb57
--- /dev/null
+++ b/database/migrations/2026_02_12_082253_add_foreign_key_machine_id_to_production_quantities.php
@@ -0,0 +1,33 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        $sql = <<<'SQL'
+            ALTER TABLE production_quantities
+            ADD COLUMN machine_id BIGINT DEFAULT NULL,
+            ADD CONSTRAINT production_quantities_machine_id_fkey
+            FOREIGN KEY (machine_id) REFERENCES machines(id);
+        SQL;
+
+        DB::statement($sql);
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        // Schema::table('production_quantities', function (Blueprint $table) {
+        //     //
+        // });
+    }
+};