commerce_discount.install in Commerce Discount 7

Install, update, and uninstall functions for the commerce discount module.

File

commerce_discount.install

<?php

/**
 * @file
 * Install, update, and uninstall functions for the commerce discount module.
 */

/**
 * Implements hook_install().
 */
function commerce_discount_install() {
  commerce_discount_install_helper();
}

/**
 * Implements hook_schema().
 */
function commerce_discount_schema() {
  $schema['commerce_discount'] = array(
    'description' => 'The base table for discounts.',
    'fields' => array(
      'discount_id' => array(
        'type' => 'serial',
        'not null' => TRUE,
        'description' => 'The internal identifier for any discount.',
      ),
      'name' => array(
        'type' => 'varchar',
        'length' => 64,
        'not null' => TRUE,
        'description' => 'The machine name of the discount.',
        'default' => '',
      ),
      'label' => array(
        'type' => 'varchar',
        'length' => 255,
        'not null' => TRUE,
        'description' => 'The label of the discount.',
        'default' => '',
      ),
      'type' => array(
        'type' => 'varchar',
        'length' => 255,
        'not null' => TRUE,
        'description' => 'The discount type (bundle).',
        'default' => '',
      ),
      'status' => array(
        'type' => 'int',
        'not null' => TRUE,
        'default' => 1,
        'size' => 'tiny',
        'description' => 'Whether the discount is enabled.',
      ),
      'export_status' => array(
        'type' => 'int',
        'not null' => TRUE,
        // Set the default to ENTITY_CUSTOM without using the constant as it is
        // not safe to use it at this point.
        'default' => 0x1,
        'size' => 'tiny',
        'description' => 'The exportable status of the entity.',
      ),
      'module' => array(
        'description' => 'The name of the providing module if the entity has been defined in code.',
        'type' => 'varchar',
        'length' => 255,
        'not null' => FALSE,
      ),
      'component_title' => array(
        'description' => 'The component price title',
        'type' => 'varchar',
        'length' => 255,
        'not null' => FALSE,
      ),
      'sort_order' => array(
        'description' => 'The discount sort order.',
        'type' => 'int',
        'not null' => TRUE,
        'default' => 10,
        'size' => 'tiny',
      ),
    ),
    'primary key' => array(
      'discount_id',
    ),
    'unique keys' => array(
      'name' => array(
        'name',
      ),
    ),
  );
  $schema['commerce_discount_offer'] = array(
    'description' => 'The base table for discount offers.',
    'fields' => array(
      'discount_offer_id' => array(
        'type' => 'serial',
        'not null' => TRUE,
        'description' => 'The internal identifier for any discount offer.',
      ),
      'type' => array(
        'type' => 'varchar',
        'length' => 255,
        'not null' => TRUE,
        'description' => 'The discount offer type (bundle).',
        'default' => '',
      ),
    ),
    'primary key' => array(
      'discount_offer_id',
    ),
  );
  $schema['commerce_discount_usage'] = array(
    'fields' => array(
      'discount' => array(
        'type' => 'varchar',
        'length' => 64,
        'not null' => TRUE,
        'description' => 'Discount name.',
      ),
      'mail' => array(
        'type' => 'varchar',
        'length' => 255,
        'not null' => TRUE,
        'default' => '',
        'description' => 'The email of the customer that used this discount.',
      ),
      'order_id' => array(
        'type' => 'int',
        'not null' => TRUE,
        'description' => 'The order id that this discount was used with.',
      ),
    ),
    'unique keys' => array(
      'discount_mail_order_id' => array(
        'discount',
        'mail',
        'order_id',
      ),
    ),
    'foreign keys' => array(
      'discount' => array(
        'table' => 'commerce_discount',
        'columns' => array(
          'discount' => 'name',
        ),
      ),
      'order_id' => array(
        'table' => 'commerce_order',
        'columns' => array(
          'order_id' => 'order_id',
        ),
      ),
      'mail' => array(
        'table' => 'users',
        'columns' => array(
          'mail' => 'mail',
        ),
      ),
    ),
    'indexes' => array(
      'mail' => array(
        'mail',
      ),
      'discount' => array(
        'discount',
      ),
      'order_id' => array(
        'order_id',
      ),
    ),
  );
  return $schema;
}

/**
 * Implements hook_requirements().
 *
 * Ensure inline_conditions is enabled.
 */
function commerce_discount_requirements($phase) {
  $requirements = array();

  // Ensure translations don't break during installation.
  $t = get_t();
  if ($phase == 'runtime') {
    if (!module_exists('inline_conditions')) {
      $requirements['inline_conditions'] = array(
        'title' => $t('Inline Conditions'),
        'value' => $t('Inline Conditions has to be installed.'),
        'severity' => REQUIREMENT_WARNING,
      );
    }
  }
  return $requirements;
}

/**
 * Helper function to define and create the required fields & instances.
 *
 * Ensure creation of an entityreference field on commerce discount, referencing
 * commerce discount offer.
 * The instance will be added for every newly created bundle.
 */
function commerce_discount_install_helper() {
  $fields = field_read_fields(array(), array(
    'include_inactive' => TRUE,
  ));
  $field_types = field_info_field_types();

  // Clear field info cache, so entity reference, inline_conditions and
  // commerce_product_reference field types can be used.
  if (!isset($field_types['entityreference'], $field_types['inline_conditions'], $field_types['commerce_product_reference'], $field_types['datestamp'])) {
    field_info_cache_clear();

    // Overwrites variable, because during installation module after clears the
    // field info cache the field type 'entityreference' not containing
    // in variables. Under this the field, use this field type is not created.
    $field_types = field_info_field_types();
  }

  // Create the discount offer entity reference field for use on all discounts.
  if (empty($fields['commerce_discount_offer']) && isset($field_types['entityreference'])) {
    $field = array(
      'entity_types' => array(
        'commerce_discount',
      ),
      'settings' => array(
        'handler' => 'base',
        'target_type' => 'commerce_discount_offer',
        'handler_settings' => array(
          // Default to fixed_amount, and others will be selectable from the
          // IEF widget.
          'target_bundles' => array(
            'fixed_amount',
          ),
        ),
      ),
      'field_name' => 'commerce_discount_offer',
      'type' => 'entityreference',
      'locked' => TRUE,
    );
    field_create_field($field);
  }

  // Create the discount compatibility strategy field for use on all discounts.
  if (empty($fields['commerce_compatibility_strategy'])) {
    $field = array(
      'type' => 'list_text',
      'field_name' => 'commerce_compatibility_strategy',
      'locked' => TRUE,
      'settings' => array(
        'allowed_values' => array(),
        'allowed_values_function' => 'commerce_discount_compatibility_strategies',
      ),
    );
    field_create_field($field);
  }

  // Create the selected discounts field for use on all discounts.
  if (empty($fields['commerce_compatibility_selection'])) {
    $field = array(
      'type' => 'entityreference',
      'field_name' => 'commerce_compatibility_selection',
      'cardinality' => FIELD_CARDINALITY_UNLIMITED,
      'locked' => TRUE,
      'settings' => array(
        'target_type' => 'commerce_discount',
        'handler' => 'base',
        'handler_settings' => array(
          'sort' => array(
            'type' => 'property',
            'property' => 'label',
            'direction' => 'ASC',
          ),
        ),
      ),
    );
    field_create_field($field);
  }
  if (empty($fields['commerce_fixed_amount'])) {

    // Add price field to the commerce discount offer "fixed_amount" bundle.
    $field = array(
      'entity_types' => array(
        'commerce_discount_offer',
      ),
      'field_name' => 'commerce_fixed_amount',
      'type' => 'commerce_price',
      'locked' => TRUE,
    );
    field_create_field($field);
  }
  if (empty($fields['commerce_percentage'])) {

    // Add decimal field to the commerce discount offer "percentage" bundle.
    $field = array(
      'entity_types' => array(
        'commerce_discount_offer',
      ),
      'field_name' => 'commerce_percentage',
      'type' => 'number_decimal',
      'locked' => TRUE,
    );
    field_create_field($field);
  }
  if (empty($fields['commerce_discounts'])) {
    $field = array(
      'entity_types' => array(
        'commerce_order',
      ),
      'settings' => array(
        'handler' => 'base',
        'target_type' => 'commerce_discount',
        'handler_settings' => array(
          'target_bundles' => array(),
        ),
      ),
      'field_name' => 'commerce_discounts',
      'type' => 'entityreference',
      'locked' => FALSE,
      'cardinality' => FIELD_CARDINALITY_UNLIMITED,
    );
    field_create_field($field);
  }
  if (empty($fields['inline_conditions']) && isset($field_types['inline_conditions'])) {
    $field = array(
      'entity_types' => array(
        'commerce_discount',
      ),
      'field_name' => 'inline_conditions',
      'type' => 'inline_conditions',
      'instance_settings' => array(
        'entity_type' => 'commerce_order',
      ),
      'cardinality' => FIELD_CARDINALITY_UNLIMITED,
    );
    field_create_field($field);
  }
  if (empty($fields['commerce_discount_date'])) {
    $field = array(
      'entity_types' => array(
        'commerce_discount',
      ),
      'settings' => array(
        'granularity' => array(
          'month' => 'month',
          'day' => 'day',
          'year' => 'year',
        ),
        'tz_handling' => 'none',
        'timezone_db' => '',
        'todate' => 'optional',
        'handler' => 'base',
        'target_type' => 'commerce_discount',
        'handler_settings' => array(
          'target_bundles' => array(),
        ),
      ),
      'field_name' => 'commerce_discount_date',
      'type' => 'datestamp',
      'locked' => TRUE,
    );
    field_create_field($field);
  }
  if (empty($fields['discount_usage_per_person'])) {

    // Create entity reference field.
    $field = array(
      'entity_types' => array(
        'commerce_discount',
      ),
      'field_name' => 'discount_usage_per_person',
      'type' => 'number_integer',
      'locked' => TRUE,
    );
    field_create_field($field);
  }

  // Discount usage.
  if (empty($fields['discount_usage_limit'])) {

    // Create entity reference field.
    $field = array(
      'entity_types' => array(
        'commerce_discount',
      ),
      'field_name' => 'discount_usage_limit',
      'type' => 'number_integer',
      'locked' => TRUE,
    );
    field_create_field($field);
  }

  // Create fields for the shipping related offer types.
  if (module_exists('commerce_shipping')) {

    // Creating the shipping service text field and checkbox for the "Free
    // shipping" offer.
    if (empty($fields['commerce_free_shipping'])) {
      $field = array(
        'entity_types' => array(
          'commerce_discount_offer',
        ),
        'field_name' => 'commerce_free_shipping',
        'type' => 'text',
        'locked' => TRUE,
      );
      field_create_field($field);
    }
    if (empty($fields['commerce_free_shipping_strategy'])) {
      $field = array(
        'type' => 'list_text',
        'field_name' => 'commerce_free_shipping_strategy',
        'locked' => TRUE,
        'settings' => array(
          'allowed_values' => array(),
          'allowed_values_function' => 'commerce_discount_free_shipping_strategies',
        ),
      );
      field_create_field($field);
    }

    // Create the percentage off and shipping service text fields for the "% off
    // of shipping" offer.
    if (empty($fields['commerce_percent_off_shipping'])) {
      $field = array(
        'entity_types' => array(
          'commerce_discount_offer',
        ),
        'field_name' => 'commerce_percent_off_shipping',
        'type' => 'number_decimal',
        'locked' => TRUE,
      );
      field_create_field($field);
    }
    if (empty($fields['commerce_percent_off_ship_serv'])) {
      $field = array(
        'entity_types' => array(
          'commerce_discount_offer',
        ),
        'field_name' => 'commerce_percent_off_ship_serv',
        'type' => 'text',
        'locked' => TRUE,
      );
      field_create_field($field);
    }

    // Create the target and source shipping service text fields for the
    // "Shipping service upgrade" offer.
    if (empty($fields['commerce_shipping_upgrade_target'])) {
      $field = array(
        'entity_types' => array(
          'commerce_discount_offer',
        ),
        'field_name' => 'commerce_shipping_upgrade_target',
        'type' => 'list_text',
        'locked' => TRUE,
        'settings' => array(
          'allowed_values' => array(),
          'allowed_values_function' => 'commerce_shipping_service_options_list',
        ),
      );
      field_create_field($field);
    }
    if (empty($fields['commerce_shipping_upgrade_source'])) {
      $field = array(
        'entity_types' => array(
          'commerce_discount_offer',
        ),
        'field_name' => 'commerce_shipping_upgrade_source',
        'type' => 'list_text',
        'locked' => TRUE,
        'settings' => array(
          'allowed_values' => array(),
          'allowed_values_function' => 'commerce_shipping_service_options_list',
        ),
      );
      field_create_field($field);
    }
  }

  // Creating field for free bonus products offer type.
  if (empty($fields['commerce_free_products']) && isset($field_types['commerce_product_reference'])) {
    $field = array(
      'entity_types' => array(
        'commerce_discount_offer',
      ),
      'field_name' => 'commerce_free_products',
      'type' => 'commerce_product_reference',
      'locked' => TRUE,
      'cardinality' => FIELD_CARDINALITY_UNLIMITED,
    );
    field_create_field($field);
  }

  // Make any existing-but-inactive fields active, and clear the cache to get
  // instances for those fields.
  field_sync_field_status();
  field_info_cache_clear();

  // Create instances for above fields.
  $instances = field_info_instances();
  foreach (commerce_discount_types() as $type => $value) {
    if (empty($instances['commerce_discount'][$type]['commerce_discount_offer'])) {
      $instance = array(
        'field_name' => 'commerce_discount_offer',
        'entity_type' => 'commerce_discount',
        'bundle' => $type,
        'label' => t('Discount offer reference'),
        'required' => TRUE,
        'widget' => array(
          'module' => 'inline_entity_form',
          'type' => 'inline_entity_form_single',
          'weight' => -12,
        ),
      );
      field_create_instance($instance);
    }
    if (empty($instances['commerce_discount'][$type]['commerce_compatibility_strategy'])) {
      $instance = array(
        'field_name' => 'commerce_compatibility_strategy',
        'label' => t('Compatibility with other discounts'),
        'entity_type' => 'commerce_discount',
        'bundle' => $type,
        'required' => TRUE,
        'widget' => array(
          'weight' => -10,
          'type' => 'options_buttons',
          'module' => 'options',
        ),
        'default_value' => array(
          0 => array(
            'value' => 'any',
          ),
        ),
      );
      field_create_instance($instance);
    }
    if (empty($instances['commerce_discount'][$type]['commerce_compatibility_selection'])) {
      $instance = array(
        'field_name' => 'commerce_compatibility_selection',
        'label' => t('Selected discounts'),
        'entity_type' => 'commerce_discount',
        'bundle' => $type,
        'required' => FALSE,
        'widget' => array(
          'weight' => -9,
          'type' => 'entityreference_autocomplete',
          'module' => 'entityreference',
        ),
      );
      field_create_instance($instance);
    }
    if (empty($instances['commerce_discount'][$type]['commerce_discount_date'])) {
      $instance = array(
        'field_name' => 'commerce_discount_date',
        'entity_type' => 'commerce_discount',
        'bundle' => $type,
        'label' => t('Discount dates'),
        'widget' => array(
          'module' => 'date',
          'type' => 'date_popup',
          'weight' => -11,
          'settings' => array(
            'no_fieldset' => TRUE,
          ),
        ),
        'settings' => array(
          'default_value' => 'blank',
          'default_value2' => 'blank',
        ),
      );
      field_create_instance($instance);
    }
  }
  if (empty($instances['commerce_discount_offer']['fixed_amount']['commerce_fixed_amount'])) {
    $instance = array(
      'field_name' => 'commerce_fixed_amount',
      'entity_type' => 'commerce_discount_offer',
      'bundle' => 'fixed_amount',
      'label' => t('Fixed amount'),
      'required' => TRUE,
    );
    field_create_instance($instance);
  }
  if (empty($instances['commerce_discount_offer']['percentage']['commerce_percentage'])) {
    $instance = array(
      'field_name' => 'commerce_percentage',
      'entity_type' => 'commerce_discount_offer',
      'bundle' => 'percentage',
      'label' => t('Percentage'),
      'settings' => array(
        'suffix' => '%',
      ),
      'required' => TRUE,
    );
    field_create_instance($instance);
  }

  // Add discount field to all commerce_order bundles.
  $order_entity_info = entity_get_info('commerce_order');
  foreach (array_keys($order_entity_info['bundles']) as $bundle) {
    if (empty($instances['commerce_order'][$bundle]['commerce_discounts'])) {
      $instance = array(
        'field_name' => 'commerce_discounts',
        'entity_type' => 'commerce_order',
        'bundle' => $bundle,
        'label' => t('Discount reference'),
      );
      field_create_instance($instance);
    }
  }
  foreach (commerce_discount_types() as $type => $value) {
    if (empty($instances['commerce_discount'][$type]['inline_conditions']) && isset($field_types['inline_conditions'])) {
      $instance = array(
        'field_name' => 'inline_conditions',
        'entity_type' => 'commerce_discount',
        'bundle' => $type,
        'label' => t('!type_label conditions', array(
          '!type_label' => $value['label'],
        )),
        'required' => FALSE,
        'settings' => array(
          'entity_type' => $value['entity type'],
        ),
        'widget' => array(
          'type' => 'inline_conditions',
          'weight' => -13,
        ),
      );
      field_create_instance($instance);
    }
  }
  foreach (commerce_discount_types() as $type => $info) {
    if (empty($instances['commerce_discount'][$type]['discount_usage_per_person'])) {
      $instance = array(
        'field_name' => 'discount_usage_per_person',
        'entity_type' => 'commerce_discount',
        'bundle' => $type,
        'label' => t('Maximum usage per customer'),
        'description' => t('Enter the maximum number of times a specific person (as identified by email) may use this discount. Leave blank for unlimited.'),
        'required' => FALSE,
        'widget' => array(
          'weight' => 100,
        ),
        'settings' => array(
          'min' => 0,
        ),
      );
      field_create_instance($instance);
    }
    if (empty($instances['commerce_discount'][$type]['discount_usage_limit'])) {
      $instance = array(
        'field_name' => 'discount_usage_limit',
        'entity_type' => 'commerce_discount',
        'bundle' => $type,
        'label' => t('Maximum overall usage'),
        'description' => t('Enter the maximum number of times this discount may be used on the site, by anyone. Leave blank for unlimited.'),
        'required' => FALSE,
        'widget' => array(
          'weight' => 100,
        ),
        'settings' => array(
          'min' => 0,
        ),
      );
      field_create_instance($instance);
    }
  }

  // Create field instances for the shipping related offer types.
  if (module_exists('commerce_shipping')) {

    // Add the shipping service text field to the "Free shipping" offer.
    if (empty($instances['commerce_discount_offer']['free_shipping']['commerce_free_shipping'])) {
      $instance = array(
        'field_name' => 'commerce_free_shipping',
        'entity_type' => 'commerce_discount_offer',
        'bundle' => 'free_shipping',
        'label' => t('Shipping service'),
        'required' => TRUE,
        'widget' => array(
          'type' => 'options_select',
        ),
      );
      field_create_instance($instance);
    }
    if (empty($instances['commerce_discount_offer']['free_shipping']['commerce_free_shipping_strategy'])) {
      $instance = array(
        'field_name' => 'commerce_free_shipping_strategy',
        'entity_type' => 'commerce_discount_offer',
        'bundle' => 'free_shipping',
        'label' => t('Free shipping discount strategy'),
        'required' => TRUE,
        'widget' => array(
          'type' => 'options_buttons',
          'module' => 'options',
        ),
        'default_value' => array(
          0 => array(
            'value' => 'only_selected',
          ),
        ),
      );
      field_create_instance($instance);
    }

    // Add the percentage off and shipping service text fields to the "% off of
    // shipping" offer.
    if (empty($instances['commerce_discount_offer']['percent_off_shipping']['commerce_percent_off_shipping'])) {
      $instance = array(
        'field_name' => 'commerce_percent_off_shipping',
        'entity_type' => 'commerce_discount_offer',
        'bundle' => 'percent_off_shipping',
        'label' => t('Percentage off of shipping'),
        'settings' => array(
          'suffix' => '%',
        ),
        'required' => TRUE,
      );
      field_create_instance($instance);
    }
    if (empty($instances['commerce_discount_offer']['percent_off_shipping']['commerce_percent_off_ship_serv'])) {
      $instance = array(
        'field_name' => 'commerce_percent_off_ship_serv',
        'entity_type' => 'commerce_discount_offer',
        'bundle' => 'percent_off_shipping',
        'label' => t('Shipping service to take % off shipping'),
        'widget' => array(
          'type' => 'options_select',
        ),
      );
      field_create_instance($instance);
    }

    // Add the target and source shipping service text fields to the "Shipping
    // service upgrade" offer.
    if (empty($instances['commerce_discount_offer']['shipping_upgrade']['commerce_shipping_upgrade_target'])) {
      $instance = array(
        'field_name' => 'commerce_shipping_upgrade_target',
        'entity_type' => 'commerce_discount_offer',
        'bundle' => 'shipping_upgrade',
        'label' => t('Let customers select this service'),
        'required' => TRUE,
        'widget' => array(
          'type' => 'options_select',
        ),
      );
      field_create_instance($instance);
    }
    if (empty($instances['commerce_discount_offer']['shipping_upgrade']['commerce_shipping_upgrade_source'])) {
      $instance = array(
        'field_name' => 'commerce_shipping_upgrade_source',
        'entity_type' => 'commerce_discount_offer',
        'bundle' => 'shipping_upgrade',
        'label' => t('For the same price as this service'),
        'required' => TRUE,
        'widget' => array(
          'type' => 'options_select',
        ),
      );
      field_create_instance($instance);
    }
  }
  if (empty($instances['commerce_discount_offer']['free_products']['commerce_free_products'])) {
    $instance = array(
      'field_name' => 'commerce_free_products',
      'entity_type' => 'commerce_discount_offer',
      'bundle' => 'free_products',
      'label' => t('Select bonus products'),
      'description' => t('Enter a comma-separated list of SKUs. Each product is added to customer order with a quantity of 1.'),
      'required' => TRUE,
      'widget' => array(
        'type' => 'commerce_product_reference_autocomplete',
      ),
    );
    field_create_instance($instance);
  }

  // Update properties of product_discount bundle.
  commerce_line_item_configure_line_item_fields(array(
    'commerce_discount',
  ));
}

/**
 * Implements hook_uninstall().
 *
 * Each implementing module adding a bundle needs to take care of deleting
 * it, upon uninstall.
 *
 * @see commerce_discount_type_info()
 * @see commerce_discount_offer_type_info()
 */
function commerce_discount_uninstall() {
  module_load_include('module', 'commerce');

  // Drop all bundles attached on commerce_discount and commerce_discount_offer
  // entity types.
  field_attach_delete_bundle('commerce_discount', 'order_discount');
  field_attach_delete_bundle('commerce_discount', 'product_discount');
  field_attach_delete_bundle('commerce_discount_offer', 'fixed_amount');
  field_attach_delete_bundle('commerce_discount_offer', 'percentage');
  field_attach_delete_bundle('commerce_discount_offer', 'free_shipping');
  field_attach_delete_bundle('commerce_discount_offer', 'commerce_percent_off_shipping');
  field_attach_delete_bundle('commerce_discount_offer', 'commerce_percent_off_ship_serv');
  field_attach_delete_bundle('commerce_discount_offer', 'free_products');

  // Delete custom line items types.
  field_attach_delete_bundle('commerce_line_item', 'commerce_discount');
  field_attach_delete_bundle('commerce_line_item', 'product_discount');

  // Then delete the related fields.
  commerce_delete_field('commerce_discount_offer');
  commerce_delete_field('commerce_fixed_amount');
  commerce_delete_field('commerce_percentage');
  commerce_delete_field('commerce_discounts');
  commerce_delete_field('inline_conditions');
  commerce_delete_field('commerce_free_shipping');
  commerce_delete_field('commerce_percent_off_shipping');
  commerce_delete_field('commerce_percent_off_ship_serv');
  commerce_delete_field('commerce_free_products');
  commerce_delete_field('commerce_discount_date');
  commerce_delete_field('discount_usage_per_person');
  commerce_delete_field('discount_usage_limit');

  // Delete all rules added by commerce_discount module.
  $query = new EntityFieldQuery();
  $result = $query
    ->entityCondition('entity_type', 'rules_config')
    ->propertyCondition('module', 'commerce_discount')
    ->execute();
  if (!empty($result)) {
    rules_config_delete(array_keys(reset($result)));
  }

  // Delete variable settings.
  variable_del('commerce_discount_line_item_types');
}

/**
 * Update the widget type of field commerce_discount_offer.
 *
 * @see https://drupal.org/node/1875524
 */
function commerce_discount_update_7101() {
  $instances = field_info_instances('commerce_discount');
  foreach ($instances as $bundle => $bundle_instances) {
    foreach ($bundle_instances as $field_name => $instance) {
      if ($field_name == 'commerce_discount_offer') {
        $instance['widget']['type'] = 'inline_entity_form_single';
        field_update_instance($instance);
      }
    }
  }
}

/**
 * Discount component price names.
 *
 * @link https://drupal.org/node/2034685
 *
 * Add a new column in commerce_discount table in order to display customized
 * component price title for a discount.
 */
function commerce_discount_update_7102() {
  $field_schema = array(
    'description' => 'The component price title',
    'type' => 'varchar',
    'length' => 255,
    'not null' => FALSE,
  );
  db_add_field('commerce_discount', 'component_title', $field_schema);
}

/**
 * Update properties of product_discount bundle.
 */
function commerce_discount_update_7103() {
  commerce_line_item_configure_line_item_fields(array(
    'commerce_discount',
  ));
}

/**
 * Changes to commerce_discount schema.
 *
 * @see http://drupal.org/node/1854108
 */
function commerce_discount_update_7104() {

  // Rename "enabled" to "status" and "status" to "export_status".
  db_change_field('commerce_discount', 'status', 'export_status', array(
    'type' => 'int',
    'not null' => TRUE,
    'default' => 0x1,
    'size' => 'tiny',
    'description' => 'The exportable status of the entity.',
  ));
  db_change_field('commerce_discount', 'enabled', 'status', array(
    'type' => 'int',
    'not null' => TRUE,
    'default' => 1,
    'size' => 'tiny',
    'description' => 'Whether the discount is active.',
  ));

  // Rebuild the schema.
  drupal_get_complete_schema(TRUE);
}

/**
 * Add a sort order column to the Commerce Discount table.
 */
function commerce_discount_update_7105() {
  $field_schema = array(
    'description' => 'The discount sort order.',
    'type' => 'int',
    'not null' => TRUE,
    'default' => 10,
    'size' => 'tiny',
  );
  db_add_field('commerce_discount', 'sort_order', $field_schema);
  return t('Sort order added to the Commerce Discount table.');
}

/**
 * Add discount compatibility fields to all discount types.
 */
function commerce_discount_update_7106() {
  $fields = field_read_fields(array(), array(
    'include_inactive' => TRUE,
  ));

  // Create the discount compatibility strategy field for use on all discounts.
  if (empty($fields['commerce_compatibility_strategy'])) {
    $field = array(
      'type' => 'list_text',
      'field_name' => 'commerce_compatibility_strategy',
      'locked' => TRUE,
      'settings' => array(
        'allowed_values' => array(),
        'allowed_values_function' => 'commerce_discount_compatibility_strategies',
      ),
    );
    field_create_field($field);
  }

  // Create the selected discounts field for use on all discounts.
  if (empty($fields['commerce_compatibility_selection'])) {
    $field = array(
      'type' => 'entityreference',
      'field_name' => 'commerce_compatibility_selection',
      'cardinality' => FIELD_CARDINALITY_UNLIMITED,
      'locked' => TRUE,
      'settings' => array(
        'target_type' => 'commerce_discount',
        'handler' => 'base',
        'handler_settings' => array(
          'sort' => array(
            'type' => 'property',
            'property' => 'label',
            'direction' => 'ASC',
          ),
        ),
      ),
    );
    field_create_field($field);
  }
  field_sync_field_status();
  field_info_cache_clear();
  $instances = field_info_instances();
  foreach (commerce_discount_types() as $type => $value) {
    if (empty($instances['commerce_discount'][$type]['commerce_compatibility_strategy'])) {
      $instance = array(
        'field_name' => 'commerce_compatibility_strategy',
        'label' => t('Compatibility with other discounts'),
        'entity_type' => 'commerce_discount',
        'bundle' => $type,
        'required' => TRUE,
        'widget' => array(
          'weight' => -10,
          'type' => 'options_buttons',
          'module' => 'options',
        ),
        'default_value' => array(
          0 => array(
            'value' => 'any',
          ),
        ),
      );
      field_create_instance($instance);
    }
    if (empty($instances['commerce_discount'][$type]['commerce_compatibility_selection'])) {
      $instance = array(
        'field_name' => 'commerce_compatibility_selection',
        'label' => t('Selected discounts'),
        'entity_type' => 'commerce_discount',
        'bundle' => $type,
        'required' => FALSE,
        'widget' => array(
          'weight' => -9,
          'type' => 'entityreference_autocomplete',
          'module' => 'entityreference',
        ),
      );
      field_create_instance($instance);
    }
  }
  return t('Discount compatibility fields added to all discount types.');
}

/**
 * Add fields to support a new "Shipping service upgrade" offer type.
 */
function commerce_discount_update_7107() {
  if (module_exists('commerce_shipping')) {
    $fields = field_read_fields(array(), array(
      'include_inactive' => TRUE,
    ));
    if (empty($fields['commerce_shipping_upgrade_target'])) {
      $field = array(
        'entity_types' => array(
          'commerce_discount_offer',
        ),
        'field_name' => 'commerce_shipping_upgrade_target',
        'type' => 'list_text',
        'locked' => TRUE,
        'settings' => array(
          'allowed_values' => array(),
          'allowed_values_function' => 'commerce_shipping_service_options_list',
        ),
      );
      field_create_field($field);
    }
    if (empty($fields['commerce_shipping_upgrade_source'])) {
      $field = array(
        'entity_types' => array(
          'commerce_discount_offer',
        ),
        'field_name' => 'commerce_shipping_upgrade_source',
        'type' => 'list_text',
        'locked' => TRUE,
        'settings' => array(
          'allowed_values' => array(),
          'allowed_values_function' => 'commerce_shipping_service_options_list',
        ),
      );
      field_create_field($field);
    }
    field_sync_field_status();
    field_info_cache_clear();
    $instances = field_info_instances();
    if (empty($instances['commerce_discount_offer']['shipping_upgrade']['commerce_shipping_upgrade_target'])) {
      $instance = array(
        'field_name' => 'commerce_shipping_upgrade_target',
        'entity_type' => 'commerce_discount_offer',
        'bundle' => 'shipping_upgrade',
        'label' => t('Let customers select this service'),
        'required' => TRUE,
        'widget' => array(
          'type' => 'options_select',
        ),
      );
      field_create_instance($instance);
    }
    if (empty($instances['commerce_discount_offer']['shipping_upgrade']['commerce_shipping_upgrade_source'])) {
      $instance = array(
        'field_name' => 'commerce_shipping_upgrade_source',
        'entity_type' => 'commerce_discount_offer',
        'bundle' => 'shipping_upgrade',
        'label' => t('For the same price as this service'),
        'required' => TRUE,
        'widget' => array(
          'type' => 'options_select',
        ),
      );
      field_create_instance($instance);
    }
  }
  return t('Fields added to support the new "Shipping service upgrade" offer type.');
}

/**
 * Add a field to support the concept of "Free or reduced shipping" offers.
 */
function commerce_discount_update_7108() {
  if (module_exists('commerce_shipping')) {
    $fields = field_read_fields(array(), array(
      'include_inactive' => TRUE,
    ));
    if (empty($fields['commerce_free_shipping_strategy'])) {
      $field = array(
        'type' => 'list_text',
        'field_name' => 'commerce_free_shipping_strategy',
        'locked' => TRUE,
        'settings' => array(
          'allowed_values' => array(),
          'allowed_values_function' => 'commerce_discount_free_shipping_strategies',
        ),
      );
      field_create_field($field);
    }
    field_sync_field_status();
    field_info_cache_clear();
    $instances = field_info_instances();
    if (empty($instances['commerce_discount_offer']['free_shipping']['commerce_free_shipping_strategy'])) {
      $instance = array(
        'field_name' => 'commerce_free_shipping_strategy',
        'entity_type' => 'commerce_discount_offer',
        'bundle' => 'free_shipping',
        'label' => t('Free shipping discount strategy'),
        'required' => TRUE,
        'widget' => array(
          'type' => 'options_buttons',
          'module' => 'options',
        ),
        'default_value' => array(
          0 => array(
            'value' => 'only_selected',
          ),
        ),
      );
      field_create_instance($instance);
    }
  }
  return t('Field added to support the concept of "Free or reduced shipping" offers.');
}

/**
 * Check for wrong discount values, before form validation was introduced.
 *
 * @see https://www.drupal.org/node/2468159#comment-10100064
 */
function commerce_discount_update_7109() {

  // Every value below and including '1' should be recalculated.
  $query = db_select('field_data_commerce_percentage', 'percent');
  $query
    ->condition('percent.commerce_percentage_value', 1, '<=')
    ->fields('percent', array(
    'commerce_percentage_value',
    'entity_id',
  ));
  $result = $query
    ->execute();
  if ($result) {
    foreach ($result as $record) {

      // We got results, perform the updates.
      db_update('field_data_commerce_percentage')
        ->fields(array(
        'commerce_percentage_value' => abs($record->commerce_percentage_value * 100),
      ))
        ->condition('entity_id', $record->entity_id, '=')
        ->execute();
    }
  }
  $text = t('Update 7109 finished. Please check all your percentage based discount settings for correct values after this update!');
  $text .= t('Number of percentage values in table "field_data_commerce_percentage" who were updated as a result: @count', array(
    '@count' => $result
      ->rowCount(),
  ));
  return $text;
}

/**
 * Enable and update usage and date sub-modules into discount core.
 */
function commerce_discount_update_7110() {

  // Fail early if the Date module is not present.
  if (!module_exists('date')) {
    throw new DrupalUpdateException('The Date module is required.');
  }
  commerce_discount_install_helper();
  $fields = field_read_fields(array(), array(
    'include_inactive' => TRUE,
  ));
  if (!db_table_exists('commerce_discount_usage')) {
    db_create_table('commerce_discount_usage', drupal_get_schema_unprocessed('commerce_discount', 'commerce_discount_usage'));
  }

  // Migrate from commerce_discount_max_uses to discount_usage_limit.
  foreach (entity_load('commerce_discount') as $discount) {
    $wrapper = entity_metadata_wrapper('commerce_discount', $discount);
    if ((!isset($wrapper->discount_usage_limit) || $wrapper->discount_usage_limit
      ->value() == FALSE) && isset($wrapper->commerce_discount_max_uses) && $wrapper->commerce_discount_max_uses
      ->value()) {
      $wrapper->discount_usage_limit = $wrapper->commerce_discount_max_uses
        ->value();
      entity_save('commerce_discount', $discount);
    }
  }
  if (!empty($fields['commerce_discount_max_uses'])) {
    field_delete_field('commerce_discount_max_uses');
  }
  $disable_modules = array(
    'commerce_discount_usage',
    'commerce_discount_date',
  );
  db_update('system')
    ->fields(array(
    'status' => 0,
  ))
    ->condition('name', $disable_modules)
    ->condition('type', 'module')
    ->execute();
  field_info_cache_clear();
  return t('Discount date and usage sub-modules are now in core.');
}

Functions

Name	Description
commerce_discount_install	Implements hook_install().
commerce_discount_install_helper	Helper function to define and create the required fields & instances.
commerce_discount_requirements	Implements hook_requirements().
commerce_discount_schema	Implements hook_schema().
commerce_discount_uninstall	Implements hook_uninstall().
commerce_discount_update_7101	Update the widget type of field commerce_discount_offer.
commerce_discount_update_7102	Discount component price names.
commerce_discount_update_7103	Update properties of product_discount bundle.
commerce_discount_update_7104	Changes to commerce_discount schema.
commerce_discount_update_7105	Add a sort order column to the Commerce Discount table.
commerce_discount_update_7106	Add discount compatibility fields to all discount types.
commerce_discount_update_7107	Add fields to support a new "Shipping service upgrade" offer type.
commerce_discount_update_7108	Add a field to support the concept of "Free or reduced shipping" offers.
commerce_discount_update_7109	Check for wrong discount values, before form validation was introduced.
commerce_discount_update_7110	Enable and update usage and date sub-modules into discount core.