Issue #2901504 by sumanthkumarc: Provide limit by no of orders per user condition for promotions in commerce core

modules/order/src/Plugin/Commerce/Condition/OrdersPerUser.php

@@ -0,0 +1,144 @@
+<?php
+
+namespace Drupal\commerce_order\Plugin\Commerce\Condition;
+
+use Drupal\commerce\Plugin\Commerce\Condition\ConditionBase;
+use Drupal\Core\Entity\EntityInterface;
+use Drupal\Core\Entity\EntityTypeManagerInterface;
+use Drupal\Core\Form\FormStateInterface;
+use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+
+/**
+ * Provides the condition for limiting promotion for number of orders per user.
+ *
+ * @CommerceCondition(
+ *   id = "orders_per_user",
+ *   label = @Translation("Number of orders"),
+ *   display_label = @Translation("Limit by orders per user"),
+ *   category = @Translation("Order"),
+ *   entity_type = "commerce_order",
+ * )
+ */
+class OrdersPerUser extends ConditionBase implements ContainerFactoryPluginInterface{
+
+  /**
+   * The order storage.
+   *
+   * @var \Drupal\Core\Entity\EntityStorageInterface
+   */
+  protected $orderStorage;
+
+  /**
+   * Constructs a new OrderCurrency object.
+   *
+   * @param array $configuration
+   *   The plugin configuration, i.e. an array with configuration values keyed
+   *   by configuration option name.
+   * @param string $plugin_id
+   *   The plugin_id for the plugin instance.
+   * @param mixed $plugin_definition
+   *   The plugin implementation definition.
+   * @param \Drupal\Core\Entity\EntityTypeManagerInterface $entity_type_manager
+   *   The entity type manager.
+   */
+  public function __construct(array $configuration, $plugin_id, $plugin_definition, EntityTypeManagerInterface $entity_type_manager) {
+    parent::__construct($configuration, $plugin_id, $plugin_definition);
+
+    $this->orderStorage = $entity_type_manager->getStorage('commerce_order');
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
+    return new static(
+      $configuration,
+      $plugin_id,
+      $plugin_definition,
+      $container->get('entity_type.manager')
+    );
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function defaultConfiguration() {
+    return [
+        'operator' => '>',
+        'orders' => 1,
+      ] + parent::defaultConfiguration();
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function buildConfigurationForm(array $form, FormStateInterface $form_state) {
+    $form = parent::buildConfigurationForm($form, $form_state);
+
+    $form['operator'] = [
+      '#type' => 'select',
+      '#title' => t('Operator'),
+      '#options' => $this->getComparisonOperators(),
+      '#default_value' => $this->configuration['operator'],
+      '#required' => TRUE,
+    ];
+    $form['orders'] = [
+      '#type' => 'number',
+      '#title' => t('Orders'),
+      '#default_value' => $this->configuration['orders'],
+      '#min' => 1,
+      '#required' => TRUE,
+    ];
+
+    return $form;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function submitConfigurationForm(array &$form, FormStateInterface $form_state) {
+    parent::submitConfigurationForm($form, $form_state);
+
+    $values = $form_state->getValue($form['#parents']);
+    $this->configuration['operator'] = $values['operator'];
+    $this->configuration['orders'] = $values['orders'];
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function evaluate(EntityInterface $entity) {
+    $this->assertEntity($entity);
+    /* @var \Drupal\commerce_order\Entity\OrderInterface $order */
+    $order = $entity;
+    $user_id = $order->getCustomerId();
+
+    $orders = $this->orderStorage->getQuery()
+      ->condition('cart', FALSE)
+      ->condition('uid', $user_id)
+      ->count()
+      ->execute();
+
+    switch ($this->configuration['operator']) {
+      case '>=':
+        return $orders >= $this->configuration['orders'];
+
+      case '>':
+        return $orders > $this->configuration['orders'];
+
+      case '<=':
+        return $orders <= $this->configuration['orders'];
+
+      case '<':
+        return $orders < $this->configuration['orders'];
+
+      case '==':
+        return $orders == $this->configuration['orders'];
+
+      default:
+        throw new \InvalidArgumentException("Invalid operator {$this->configuration['operator']}");
+    }
+  }
+
+}