Club Drupal

<?php

/**

 * @file

 * This file contains no working PHP code; it exists to provide additional

 * documentation for doxygen as well as to document hooks in the standard

 * Drupal manner.

 */

/**

 * Defines currencies available to the Commerce currency formatting and price APIs.

 *

 * By default Drupal Commerce defines all actively traded currencies according

 * to ISO 4217. Additional currencies may be added by modules that depend on

 * alternate or pseudo-currency definitions.

 *

 * @return

 *   An array of currency data arrays keyed by three character currency codes.

 *   Currency data arrays should include:

 *   - code: The uppercase alphabetic currency code. For example USD.

 *   - numeric_code: The numeric currency code. According to ISO4217 this code

 *     consists of three digits and first digit can be a zero.

 *   - symbol: The currency symbol. For example $.

 *   - name: The name of the currency. Translatable.

 *   - symbol_placement: Defines where the currency symbol has to be placed for

 *      display. Allowed values: before, after, hidden.

 *   - symbol_spacer: The spacer to put between the price amount and a currency

 *     symbol that appears after the amount; defaults to ' '.

 *   - code_placement: Defines where the currency code has to be placed for

 *      display. Allowed values: before, after, hidden.

 *   - code_spacer: The spacer to put between the price amount and currency code

 *     whether the code is displayed before or after the amount; defaults to ' '.

 *   - minor_unit: Name of the minor unit of the currency. For example Cent.

 *     Translatable

 *   - major_unit: Name of the major unit of the currency. For example Dollar.

 *     Translatable

 *   - rounding_step: Defines which stepping has to is used for price rounding.

 *     For example Swiss Francs use a rounding_step of 0.05. This means a

 *     price like 10.93 is converted to 10.95. Currently only the steps

 *     0.5,0.05... and 0.2, 0.02 ... are supported. This value has to be

 *     defined as string, otherwise the rounding results can be unpredictable.

 *     Default: 0 (no special rounding)

 *   - decimals: The number of decimals to display.

 *     Default: 2

 *   - thousands_separator: The char to split the value in groups of thousand.

 *     Default: ,

 *   - decimal_separator: The char to split the integer from the decimal part.

 *     Default: .

 *   - format_callback: Custom callback function to format a price value.

 *   - conversion_callback: Custom callback function to convert a price amount

 *     from one currency into another.

 *   - conversion_rate: The conversion rate of this currency calculated against

 *     the base currency, expressed as a decimal value denoting the value of

 *     one major unit of this currency when converted to the base currency.

 *     Default: 1

 *

 * @see hook_commerce_currency_info_alter()

 */

function hook_commerce_currency_info() {

  return array (

    'CHF' => array(

      'code' => 'CHF',

      'numeric_code' => '756',

      'symbol' => 'Fr.',

      'name' => t('Swiss Franc'),

      'symbol_placement' => 'before',

      'code_placement' => 'before',

      'minor_unit' => t('Rappen'),

      'major_unit' => t('Franc'),

      'rounding_step' => '0.05',

    ),

  );

}

/**

 * Allows modules to alter Commerce currency definitions.

 *

 * By default Commerce provides all active currencies according to ISO 4217.

 * This hook allows you to change the formatting properties of existing

 * definitions.

 *

 * Additionally, because every currency's default conversion rate is 1, this

 * hook can be used to populate currency conversion rates with meaningful

 * values. Conversion rates can be calculated using any currency as the base

 * currency as long as the same base currency is used for every rate.

 *

 * @see hook_commerce_currency_info()

 */

function hook_commerce_currency_info_alter(&$currencies, $langcode) {

  $currencies['CHF']['code_placement'] = 'after';

}

/**

 * Allows modules to deny or provide access for a user to perform a non-view

 * operation on an entity before any other access check occurs.

 *

 * Modules implementing this hook can return FALSE to provide a blanket

 * prevention for the user to perform the requested operation on the specified

 * entity. If no modules implementing this hook return FALSE but at least one

 * returns TRUE, then the operation will be allowed, even for a user without

 * role based permission to perform the operation.

 *

 * If no modules return FALSE but none return TRUE either, normal permission

 * based checking will apply.

 *

 * @param $op

 *   The request operation: update, create, or delete.

 * @param $entity

 *   The entity to perform the operation on.

 * @param $account

 *   The user account whose access should be determined.

 * @param $entity_type

 *   The machine-name of the entity type of the given $entity.

 *

 * @return

 *   TRUE or FALSE indicating an explicit denial of permission or a grant in the

 *   presence of no other denials; NULL to not affect the access check at all.

 */

function hook_commerce_entity_access($op, $entity, $account, $entity_type) {

  // No example.

}

/**

 * Allows modules to alter the conditions used on the query to grant view access

 * to a Commerce entity of the specified ENTITY TYPE.

 *

 * The Commerce module defines a generic implementation of hook_query_alter() to

 * determine view access for its entities, commerce_entity_access_query_alter().

 * This function is called by modules defining Commerce entities from their

 * view access altering functions to apply a standard set of permission based

 * conditions for determining a user's access to view the given entity.

 *

 * @param $conditions

 *   The OR conditions group used for the view access query.

 * @param $context

 *   An array of contextual information including:

 *   - account: the account whose access to view the entity is being checked

 *   - entity_type: the type of entity in the query

 *   - base_table: the name of the table for the entity type

 *

 * @see commerce_entity_access_query_alter()

 * @see commerce_cart_commerce_entity_access_condition_commerce_order_alter()

 */

function hook_commerce_entity_access_condition_ENTITY_TYPE_alter() {

  // See the Cart implementation of the hook for an example, as the Cart module

  // alters the view query to grant view access of orders to anonymous users who

  // own them based on the order IDs stored in the anonymous session.

}

/**

 * Allows modules to alter the conditions used on the query to grant view access

 * to a Commerce entity.

 *

 * This hook uses the same parameters as the entity type specific hook but is

 * invoked after it.

 *

 * @see hook_commerce_entity_access_condition_ENTITY_TYPE_alter()

 */

function hook_commerce_entity_access_condition_alter() {

  // No example.

}

/**

 * Allows modules to alter newly created Commerce entities.

 *

 * Commerce's default entity controller, DrupalCommerceEntityController, invokes

 * this hook after creating a new entity object using either a class specified

 * by the entity type info or a stdClass. Using this hook, you can alter the

 * entity before it is returned to any of our entity "new" API functions such

 * as commerce_product_new().

 *

 * @param $entity_type

 *   The machine-name type of the entity.

 * @param $entity

 *   The entity object that was just created.

 */

function hook_commerce_entity_create_alter($entity_type, $entity) {

  // No example.

}

/**

 * Allows modules to alter the default currency.

 *

 * @param $currency_code

 *   The default currency code.

 *

 * @see commerce_default_currency()

 */

function hook_commerce_default_currency_alter(&$currency_code) {

  global $language;

  if (isset($language->language) && $language->language == 'en-US') {

    $currency_code = 'USD';

  }

}