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<?php
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/* $Id: relatedcontent.install,v 1.3.2.2 2008/01/09 21:41:48 tbarregren Exp $
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*
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* Copyright (C) 2007-2008 Thomas Barregren.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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/**
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* @file
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* Installer script for the RelatedContent – a Drupal module that allows
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* privileged users to add "related content" to the beginning or end of any
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* node.
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*
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* Author:
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* Thomas Barregren at Webbredaktören <http://drupal.org/user/16678>.
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*/
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/******************************************************************************
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* MYSQL
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******************************************************************************/
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/**
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* Install.
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*/
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function relatedcontent_mysql_install() {
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// Create the table relatedcontent.
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$sql[] = <<<EOT
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CREATE TABLE if not exists {relatedcontent} (
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nid int NOT NULL,
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include_nid int NOT NULL,
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ordinal_number int NOT NULL,
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PRIMARY KEY (nid, include_nid)
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) /*!40100 DEFAULT CHARACTER SET utf8 */;
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EOT;
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return $sql;
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}
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/**
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* Uninstall.
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*/
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function relatedcontent_mysql_uninstall() {
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// Drop the table relatedcontent.
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$sql[] = <<<EOT
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DROP TABLE {relatedcontent};
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EOT;
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return $sql;
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}
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/**
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* Update 1.
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*/
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function relatedcontent_mysql_update_1() {
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$sql[] = <<<EOT
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ALTER TABLE {relatedcontent} ADD COLUMN ordinal_number int NOT NULL;
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EOT;
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$sql[] = <<<EOT
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UPDATE {relatedcontent} AS a INNER JOIN (SELECT include_nid FROM {relatedcontent}) AS b ON a.include_nid = b.include_nid SET a.ordinal_number = b.include_nid;
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EOT;
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return $sql;
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}
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/******************************************************************************
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* INSTALL
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******************************************************************************/
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/**
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* Implements hook_install().
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*/
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function relatedcontent_install() {
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_relatedcontent_install_op('install');
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}
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/******************************************************************************
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* UNINSTALL
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******************************************************************************/
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/**
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* Implements hook_uninstall().
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*/
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function relatedcontent_uninstall() {
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_relatedcontent_install_op('uninstall');
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_relatedcontent_install_variable_delete();
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}
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/******************************************************************************
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* UPDATES
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******************************************************************************/
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/**
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* Implements hook_update_1().
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*/
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function relatedcontent_update_1() {
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// Add the column ordinal_number to the table relatedcontent. Previous to
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// this update, include_nid was used implicit as ordinal_number. Therefore,
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// for each row, copy the value of include_nid to ordinal_number.
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$status = _relatedcontent_install_op('update_1');
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// Build a view name to view id lookup table.
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$result = db_query('SELECT vid, name FROM {view_view}');
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while ($row = db_fetch_object($result)) {
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$views[$row->name] = $row->vid;
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}
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// Update some variables for each content type.
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$result = db_query('SELECT type FROM {node_type}');
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while ($row = db_fetch_object($result)) {
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// Update the variable 'view' to hold the views' id instead of name.
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$view = variable_get("relatedcontent_view_$row->type", '');
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$has_view = $view && $views[$view];
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if ($has_view) {
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$view_id = serialize($views[$view]);
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$sql = "UPDATE {variable} SET value = '%s' WHERE name = '%s'";
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$status[] = _relatedcontent_install_db_query($sql, $view_id, "relatedcontent_view_$row->type");
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}
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// When upgrading from 1.0 or 1.1, the variable 'enabled' is implicit. In
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// version 1.5 it must be explicit.
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if (variable_get("relatedcontent_enabled_$row->type", null) === null && $has_view) {
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$enabled = serialize(true);
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$sql = "INSERT INTO {variable} (name, value) VALUES ('%s', '%s')";
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$status[] = _relatedcontent_install_db_query($sql, "relatedcontent_enabled_$row->type", $enabled);
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}
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// Replace the variable 'after' with the variable 'placing'.
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if (($after = variable_get("relatedcontent_output_after_$row->type", 0)) !== 0) {
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$placing = serialize($after ? 'end' : 'beginning');
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$sql = "UPDATE {variable} SET name = '%s', value = '%s' WHERE name = '%s'";
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$status[] = _relatedcontent_install_db_query($sql, "relatedcontent_output_placing_$row->type", $placing, "relatedcontent_output_after_$row->type");
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}
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}
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return $status;
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}
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/******************************************************************************
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* HELPERS
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******************************************************************************/
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/**
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* Execute the operation $op.
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*/
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function _relatedcontent_install_op($op, $prefix = 'relatedcontent') {
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global $db_type;
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$db = $db_type === 'mysqli' ? 'mysql' : $db_type;
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$function = $prefix .'_'. $db .'_'. $op;
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if (function_exists($function)) {
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$queries = $function();
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foreach ($queries as $query) {
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$status[] = _relatedcontent_install_db_query($query);
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}
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}
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else {
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$msg = t('RelatedContent install script doesn\'t support %op for %db.', array('%op' => $op, '%db' => $db));
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$status[] = array('success' => false, 'query' => $msg);
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}
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return $status;
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}
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/**
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* Execute a database query. Based on db_query() and update_sql().
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*/
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function _relatedcontent_install_db_query($query) {
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// Get the arguments.
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$args = func_get_args();
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array_shift($args);
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if (isset($args[0]) and is_array($args[0])) {
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$args = $args[0];
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}
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// Build the query.
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$query = db_prefix_tables($query);
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_db_query_callback($args, true);
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$query = preg_replace_callback(DB_QUERY_REGEXP, '_db_query_callback', $query);
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// Do the database query, and return the status.
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$result = _db_query($query);
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return array('success' => $result !== false, 'query' => check_plain($query));
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}
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/**
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* Remove all persisted variables that beginns with $prefix.
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*/
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function _relatedcontent_install_variable_delete($prefix = 'relatedcontent') {
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global $conf;
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$prefix .= '_%';
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$result = db_query("SELECT name FROM {variable} WHERE name LIKE '%s'", $prefix);
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while ($row = db_fetch_array($result)) {
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unset($conf[$row['name']]);
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}
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$result = $result && db_query("DELETE FROM {variable} WHERE name LIKE '%s'", $prefix);
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cache_clear_all('variables', 'cache');
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}
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