Update the database schema

Database/Migrations/2024_07_16_115310_create_customers_groups_table.php

@@ -0,0 +1,42 @@
+<?php
+/*
+ SPDX-License-Identifier: AGPL-3.0-only
+ SPDX-FileCopyrightText: © 2024 Millions Missing FRANCE <info@millionsmissing.fr>
+ */
+
+use Illuminate\Support\Facades\Schema;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Database\Migrations\Migration;
+
+class CreateCustomersGroupsTable extends Migration {
+	/**
+	 * Run the migrations.
+	 *
+	 * @return void
+	 */
+	public function up() {
+		Schema::create('customers_groups', function (Blueprint $table) {
+			$table->increments('id');
+			$table->string('name');
+			// Include a "mailbox_id" column in the customers groups table, linking each group entry to a specific mailbox.
+			$table
+				->integer('mailbox_id')
+				->unsigned();
+			$table
+				->foreign('mailbox_id')
+				->references('id')
+				->on('mailboxes')
+				// On mailbox deletion, delete all customers group entries that are linked to it.
+				->onDelete('cascade');
+		});
+	}
+
+	/**
+	 * Reverse the migrations.
+	 *
+	 * @return void
+	 */
+	public function down() {
+		Schema::dropIfExists('customers_groups');
+	}
+}

Database/Migrations/2024_07_16_115333_link_customers_to_groups.php

@@ -0,0 +1,49 @@
+<?php
+/*
+ SPDX-License-Identifier: AGPL-3.0-only
+ SPDX-FileCopyrightText: © 2024 Millions Missing FRANCE <info@millionsmissing.fr>
+ */
+
+use Illuminate\Support\Facades\Schema;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Database\Migrations\Migration;
+
+class LinkCustomersToGroups extends Migration {
+	/**
+	 * Run the migrations.
+	 *
+	 * @return void
+	 */
+	public function up() {
+		Schema::create('customers_group_customers', function (Blueprint $table) {
+			// Set a link between customers groups and customers.
+			$table
+				->integer('customers_group_id')
+				->unsigned();
+			$table
+				->foreign('customers_group_id')
+				->references('id')
+				->on('customers_groups')
+				->onDelete('cascade');
+			$table
+				->integer('customer_id')
+				->unsigned();
+			$table
+				->foreign('customer_id')
+				->references('id')
+				->on('customers')
+				->onDelete('cascade');
+			// Prevent the inclusion of duplicated entries.
+			$table->unique(['customers_group_id', 'customer_id']);
+		});
+	}
+
+	/**
+	 * Reverse the migrations.
+	 *
+	 * @return void
+	 */
+	public function down() {
+		Schema::dropIfExists('customers_group_customers');
+	}
+}

Providers/MMFCustomersGroupsServiceProvider.php

@@ -21,6 +21,7 @@ class MMFCustomersGroupsServiceProvider extends ServiceProvider {
 	 */
 	public function boot() {
 		$this->registerConfig();
+		$this->loadMigrationsFrom(__DIR__ . '/../Database/Migrations');
 	}
 
 	/**