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Drupal example source code file (uc_flatrate.install)

This example Drupal source code file (uc_flatrate.install) is included in the DevDaily.com "Drupal Source Code Warehouse" project. The intent of this project is to help you "Learn Drupal by Example".

PHP - Drupal tags/keywords

array, database, default, function, mid, not, null, ret, sql, true, uc_flatrate_products, unsigned, update_sql, vid

The uc_flatrate.install Drupal example source code

<?php
// $Id: uc_flatrate.install,v 1.5.2.8 2010/03/19 21:27:17 tr Exp $

/**
 * @file
 * Install hooks for uc_flatrate.module.
 */

/**
 * Implmentation of hook_schema().
 */
function uc_flatrate_schema() {
  $schema = array();

  $schema['uc_flatrate_products'] = array(
    'description' => 'Stores product information for quantity-based shipping methods.',
    'fields' => array(
      'vid' => array(
        'description' => 'The {uc_products}.vid.',
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'default' => 0,
      ),
      'nid' => array(
        'description' => 'The {uc_products}.nid.',
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'default' => 0,
      ),
      'mid' => array(
        'description' => 'The {uc_flatrate_methods}.mid.',
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'default' => 0,
      ),
      'rate' => array(
        'description' => 'The rate multiplier in the store default currency per one of this product on the shipment.',
        'type' => 'numeric',
        'precision' => 16,
        'scale' => 5,
        'not null' => FALSE,
      ),
    ),
    'primary key' => array('vid', 'mid'),
  );

  $schema['uc_flatrate_methods'] = array(
    'description' => 'Stores quantity-based shipping quote information.',
    'fields' => array(
      'mid' => array(
        'description' => 'Primary key: the shipping quote method ID.',
        'type' => 'serial',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'title' => array(
        'description' => 'The method title, displayed on adminstration pages.',
        'type' => 'varchar',
        'length' => 255,
        'not null' => TRUE,
        'default' => '',
      ),
      'label' => array(
        'description' => 'The user-facing label of the shipping method.',
        'type' => 'varchar',
        'length' => 255,
        'not null' => TRUE,
        'default' => '',
      ),
      'base_rate' => array(
        'description' => 'The amount of shipping cost before product quantity is applied.',
        'type' => 'numeric',
        'precision' => 16,
        'scale' => 5,
        'not null' => TRUE,
        'default' => 0.0,
      ),
      'product_rate' => array(
        'description' => 'The default rate multiplier in the store default currency per product on the shipment.',
        'type' => 'numeric',
        'precision' => 16,
        'scale' => 5,
        'not null' => TRUE,
        'default' => 0.0,
      ),
    ),
    'primary key' => array('mid'),
  );

  return $schema;
}

/**
 * Implementation of hook_install().
 */
function uc_flatrate_install() {
  drupal_install_schema('uc_flatrate');
}

/**
 * Implementation of hook_uninstall().
 */
function uc_flatrate_uninstall() {
  drupal_uninstall_schema('uc_flatrate');
}

function uc_flatrate_update_1() {
  $ret = array();
  switch ($GLOBALS['db_type']) {
    case 'mysql':
    case 'mysqli':
      $ret[] = update_sql("ALTER TABLE {uc_flatrate_products} ADD COLUMN vid mediumint(9) unsigned NOT NULL default 0 FIRST");
      $ret[] = update_sql("ALTER TABLE {uc_flatrate_products} DROP INDEX nid");
      $result = db_query("SELECT nid, vid FROM {node}");
      while ($product = db_fetch_object($result)) {
        db_query("UPDATE {uc_flatrate_products} SET vid = %d WHERE nid = %d", $product->vid, $product->nid);
      }
      $ret[] = update_sql("ALTER TABLE {uc_flatrate_products} ADD PRIMARY KEY (vid)");
    break;
    case 'pgsql':
      db_add_column($ret, 'uc_flatrate_products', 'vid', 'integer unsigned', array('not null' => TRUE, 'default' => 0));
      $ret[] = update_sql("ALTER TABLE {uc_flatrate_products} DROP CONSTRAINT {uc_flatrate_products}_nid_key");
      $result = db_query("SELECT nid, vid FROM {node}");
      while ($product = db_fetch_object($result)) {
        db_query("UPDATE {uc_flatrate_products} SET vid = %d WHERE nid = %d", $product->vid, $product->nid);
      }
      $ret[] = update_sql("ALTER TABLE {uc_flatrate_products} ADD PRIMARY KEY (vid)");
    break;
  }
  return $ret;
}

function uc_flatrate_update_2() {
  $ret = array();
  switch ($GLOBALS['db_type']) {
    case 'mysql':
    case 'mysqli':
      $ret[] = update_sql("ALTER TABLE {uc_flatrate_products} CHANGE rate rate decimal(10,2) NOT NULL default 0.00");
      $ret[] = update_sql("ALTER TABLE {uc_flatrate_products} ADD COLUMN mid mediumint(9) unsigned NOT NULL default 0 AFTER nid");
      $ret[] = update_sql("CREATE TABLE {uc_flatrate_methods} (
        `mid` mediumint(9) unsigned NOT NULL default 0,
        `title` varchar(255) NOT NULL default '',
        `label` varchar(255) NOT NULL default '',
        `base_rate` decimal(10,2) NOT NULL default 0.00,
        `product_rate` decimal(10,2) NOT NULL default 0.00,
        PRIMARY KEY (`mid`)
      ) /*!40100 DEFAULT CHARACTER SET UTF8 */ ;");
    break;
    case 'pgsql':
      db_change_column($ret, 'uc_flatrate_products', 'rate', 'rate', 'decimal(10,2)', array('not null' => TRUE, 'default' => 0));
      db_add_column($ret, 'uc_flatrate_products', 'mid', 'mediumint(9) unsigned', array('not null' => TRUE, 'default' => 0));
      $ret[] = update_sql("CREATE TABLE {uc_flatrate_methods} (
        mid mediumint(9) unsigned NOT NULL default 0,
        title varchar(255) NOT NULL default '',
        label varchar(255) NOT NULL default '',
        base_rate decimal(10,2) NOT NULL default 0.00,
        product_rate decimal(10,2) NOT NULL default 0.00,
        PRIMARY KEY (mid)
      );");
      $ret[] = update_sql("CREATE INDEX {uc_flatrate_methods}_mid_idx ON {uc_flatrate_methods}(mid)");
    break;
  }

  $set_var = FALSE;
  $enabled = variable_get('uc_quote_enabled', array());
  $weight = variable_get('uc_quote_method_weight', array('flatrate' => 0, 'order_rate' => 1));
  $base_rate = variable_get('uc_flatrate_product_base_rate', 0);
  $product_rate = variable_get('uc_flatrate_product_default', 0);
  $changes = db_num_rows(db_query("SELECT * FROM {uc_flatrate_products}"));
  $mid = db_next_id('{uc_flatrate_methods}_mid');
  $ret[] = update_sql("INSERT INTO {uc_flatrate_methods} (mid, title, label, base_rate, product_rate) VALUES (". $mid .", '". t('Flat rate per product') ."', '". t('Shipping rate') ."', ". $base_rate .", ". $product_rate .")");
  $ret[] = update_sql("UPDATE {uc_flatrate_products} SET mid = ". $mid);
  $enabled['flatrate_'. $mid] = $enabled['flatrate'];
  $weight['flatrate_'. $mid] = $weight['flatrate'];
  unset($enabled['flatrate'], $weight['flatrate']);

  if (db_table_exists('workflow_ng_cfgs') && $configuration = db_fetch_object(db_query("SELECT data FROM {workflow_ng_cfgs} WHERE name = '%s'", 'uc_flatrate_get_quote'))) {
    $configuration->name = 'uc_flatrate_get_quote_'. $mid;
    $configuration->data = unserialize($configuration->data);
    $configuration->data['#event'] = 'get_quote_from_flatrate_'. $mid;
    $result = db_query("UPDATE {workflow_ng_cfgs} SET name = '". $configuration->name ."', data = '". serialize($configuration->data) ."' WHERE name = 'uc_flatrate_get_quote'");
    $ret[] = array('success' => $result !== FALSE, 'query' => check_plain("UPDATE {workflow_ng_cfgs} SET name = '". $configuration->name ."', data = '". serialize($configuration->data) ."' WHERE name = 'uc_flatrate_get_quote'"));
  }
  else {
    $ret[] = array('success' => FALSE, 'query' => check_plain("UPDATE {workflow_ng_cfgs} SET name = '". $configuration->name ."', data = '". serialize($configuration->data) ."' WHERE name = 'uc_flatrate_get_quote'"));
  }

  $order_rate = variable_get('uc_flatrate_order_rate', 0);
  $mid = db_next_id('{uc_flatrate_methods}_mid');
  $ret[] = update_sql("INSERT INTO {uc_flatrate_methods} (mid, title, label, base_rate) VALUES (". $mid .", '". t('Flat rate per order') ."', '". t('Shipping rate') ."', ". $order_rate .")");
  $enabled['flatrate_'. $mid] = $enabled['order_rate'];
  $weight['flatrate_'. $mid] = $weight['order_rate'];
  unset($enabled['order_rate'], $weight['order_rate']);

  if (db_table_exists('workflow_ng_cfgs') && $configuration = db_fetch_object(db_query("SELECT data FROM {workflow_ng_cfgs} WHERE name = '%s'", 'uc_flatrate_get_quote_by_order'))) {
    $configuration->name = 'uc_flatrate_get_quote_'. $mid;
    $configuration->data = unserialize($configuration->data);
    $configuration->data['#event'] = 'get_quote_from_flatrate_'. $mid;
    $result = db_query("UPDATE {workflow_ng_cfgs} SET name = '". $configuration->name ."', data = '". serialize($configuration->data) ."' WHERE name = 'uc_flatrate_get_quote_by_order'");
    $ret[] = array('success' => $result !== FALSE, 'query' => check_plain("UPDATE {workflow_ng_cfgs} SET name = '". $configuration->name ."', data = '". serialize($configuration->data) ."' WHERE name = 'uc_flatrate_get_quote_by_order'"));
  }
  else {
    $ret[] = array('success' => FALSE, 'query' => check_plain("UPDATE {workflow_ng_cfgs} SET name = '". $configuration->name ."', data = '". serialize($configuration->data) ."' WHERE name = 'uc_flatrate_get_quote_by_order'"));
  }

  variable_set('uc_quote_enabled', $enabled);
  variable_set('uc_quote_method_weight', $weight);
  if (module_exists('workflow_ng')) {
    workflow_ng_clear_cache();
  }

  variable_del('uc_flatrate_product_base_rate');
  variable_del('uc_flatrate_product_default');
  variable_del('uc_flatrate_order_rate');

  return $ret;
}

function uc_flatrate_update_3() {
  $ret = array();
  switch ($GLOBALS['db_type']) {
    case 'mysql':
    case 'mysqli':
      $ret[] = update_sql("ALTER TABLE {uc_flatrate_products} DROP PRIMARY KEY, ADD PRIMARY KEY (`vid`, `mid`)");
    break;
    case 'pgsql':
      $ret[] = update_sql("ALTER TABLE {uc_flatrate_products} DROP CONSTRAINT {uc_flatrate_products}_pkey, ADD PRIMARY KEY (vid, mid)");
    break;
  }
  return $ret;
}

function uc_flatrate_update_4() {
  $ret = array();
  switch ($GLOBALS['db_type']) {
    case 'pgsql':
      db_change_column($ret, 'uc_flatrate_products', 'vid', 'vid', 'int_unsigned', array('not null' => TRUE, 'default' => 0));
      db_change_column($ret, 'uc_flatrate_products', 'nid', 'nid', 'int_unsigned', array('not null' => TRUE, 'default' => 0));
      db_change_column($ret, 'uc_flatrate_products', 'mid', 'mid', 'int_unsigned', array('not null' => TRUE, 'default' => 0));
    break;
  }
  return $ret;
}

function uc_flatrate_update_6000() {
  $ret = array();

  db_drop_primary_key($ret, 'uc_flatrate_products');
  db_change_field($ret, 'uc_flatrate_products', 'vid', 'vid', array('type' => 'int', 'unsigned' => TRUE, 'not null' => TRUE, 'default' => 0));
  db_change_field($ret, 'uc_flatrate_products', 'nid', 'nid', array('type' => 'int', 'unsigned' => TRUE, 'not null' => TRUE, 'default' => 0));
  db_change_field($ret, 'uc_flatrate_products', 'mid', 'mid', array('type' => 'int', 'unsigned' => TRUE, 'not null' => TRUE, 'default' => 0));
  db_add_primary_key($ret, 'uc_flatrate_products', array('vid', 'mid'));

  db_drop_primary_key($ret, 'uc_flatrate_methods');
  db_change_field($ret, 'uc_flatrate_methods', 'mid', 'mid', array('type' => 'serial', 'unsigned' => TRUE, 'not null' => TRUE), array('primary key' => array('mid')));

  return $ret;
}

// Removed obsolete updates 6001 and 6002.

/**
 * Change currency fields to numeric(16, 5).
 */
function uc_flatrate_update_6003() {
  $ret = array();

  db_change_field($ret, 'uc_flatrate_products', 'rate', 'rate', array('type' => 'numeric', 'precision' => 16, 'scale' => 5, 'not null' => FALSE));
  db_change_field($ret, 'uc_flatrate_methods', 'base_rate', 'base_rate', array('type' => 'numeric', 'precision' => 16, 'scale' => 5, 'not null' => FALSE));
  db_change_field($ret, 'uc_flatrate_methods', 'product_rate', 'product_rate', array('type' => 'numeric', 'precision' => 16, 'scale' => 5, 'not null' => FALSE));

  return $ret;
}

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