Improve dashboard rendering speed by using ajax for graphs. Improve perfs by using more index on query. Add function to find invalid numbers and export as csv

db/migrations/20241026162247_add_index_sended_status.php

@@ -0,0 +1,38 @@
+<?php
+
+use Phinx\Migration\AbstractMigration;
+
+class AddIndexSendedStatus extends AbstractMigration
+{
+    /**
+     * Change Method.
+     *
+     * Write your reversible migrations using this method.
+     *
+     * More information on writing migrations is available here:
+     * https://book.cakephp.org/phinx/0/en/migrations.html
+     *
+     * The following commands can be used in this method and Phinx will
+     * automatically reverse them when rolling back:
+     *
+     *    createTable
+     *    renameTable
+     *    addColumn
+     *    addCustomColumn
+     *    renameColumn
+     *    addIndex
+     *    addForeignKey
+     *
+     * Any other destructive changes will result in an error when trying to
+     * rollback the migration.
+     *
+     * Remember to call "create()" or "update()" and NOT "save()" when working
+     * with the Table class.
+     */
+    public function change()
+    {
+        $table = $this->table('sended');
+        $table->addIndex(['id_user', 'status']);
+        $table->update();
+    }
+}