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<?php
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/**
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* $Id: carbon_admin.inc,v 1.7 2009/01/11 17:05:48 johnackers Exp $
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*
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* Drupal carbon module, diagnostic/tools routines
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*
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* Created on 30-Nov-2006
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*
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* @file
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* This file provides optional support, diagnostic and repair tools for the
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* carbon module. It is not required for normal operation but keep in mind
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* that a file of this name is imported by the carbon module.
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*/
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function carbon_admin_form()
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{
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$form = array();
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$form["descrip"] = array (
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"#type" => "item",
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"#weight" => -3,
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"#value" => "If you are working with a production system backup your database" .
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" before executing any of the repair or purge operations available below." .
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" The underlying SQL statements have been tested with MySql 5.0.18 but " .
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" should work with other versions. The commands below act immediately, " .
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" there is no confirmation screen.") ;
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$form["check_tables"] = array("#type" => "fieldset",
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"#title" => t("Show number of records"),
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"#weight" => "0");
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$form["check_tables"]["descrip"] = array (
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"#type" => "item",
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"#value" => "Show the number of nodes and the number of rows for each table/carbon " .
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" node. In the case of carbon_stamp, carbon_account and carbon_source, there " .
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" should be an equal number of nodes and rows.");
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$form["check_tables"]["op"] = array("#type" => "submit", "#value" => t("check_tables"));
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$form["install_sources"] = array("#type" => "fieldset",
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"#title" => t("Install carbon sources"),
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"#weight" => "0");
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$form["install_sources"]["descrip"] = array (
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"#type" => "item",
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"#value" => "Install (or update existing) sources of carbon emissions with a" .
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" a default set of carbon emissions.");
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$form["install_sources"]["op"] = array("#type" => "submit", "#value" => t("install_carbon_sources"));
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$form["check_ownership"] = array("#type" => "fieldset",
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"#title" => t("Carbon stamp ownership"),
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"#weight" => "3");
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$form["check_ownership"]["descrip"] = array (
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"#type" => "item",
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"#value" => "Select that stamps attached to footprints but with a different owner. " .
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"This can happen if another user e.g. admin enters carbon stamps then attaches " .
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"them to a footprint not beloning to him or her or the author of the footprint " .
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"is innocently changed.") ;
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$form["check_ownership"]["op"] = array("#type" => "submit",
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"#value" => t("check_ownership"));
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$form["check_ownership"]["op2"] = array("#type" => "submit",
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"#value" => t("repair_ownership"));
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$form["purge_nodes"] = array("#type" => "fieldset",
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"#title" => t("Node table management"),
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"#weight" => "3");
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$form["purge_nodes"]["descrip"] = array (
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"#type" => "item",
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"#value" => "Purge nodes in the node table that don't have any corresponding row in a carbon table. " .
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"This is useful if you drop or truncate the carbon_source, carbon_stamp or " .
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"carbon_account tables.") ;
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$form["purge_nodes"]["op"] = array("#type" => "submit",
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"#value" => t("purge_nodes"));
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$form["purge_rows"] = array("#type" => "fieldset",
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"#title" => t("Carbon table management"),
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"#weight" => "3");
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$form["purge_rows"]["descrip"] = array (
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"#type" => "item",
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"#value" => "Purge rows in any of the carbon tables for which there is no corresponding entry " .
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"in the node table. Not implemented.");
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$form["purge_rows"]["op"] = array("#type" => "submit",
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"#value" => t("purge_rows"));
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$form["remove_module"] = array("#type" => "fieldset",
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"#title" => t("Carbon module total removal"),
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"#weight" => "4");
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$form["remove_module"]["descrip"] = array (
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"#type" => "item",
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"#value" => "Remove module from Drupal by removing the carbon ".
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" entry from the system table. When this module ".
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" is reenabled, drupal will attempt to run the install script.".
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" Don't do this unless you are sure or desperate.");
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$form["remove_module"]["op"] = array("#type" => "submit",
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"#value" => t("remove_module"));
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$form["drop_tables"] = array("#type" => "fieldset",
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"#title" => t("Drop tables"),
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"#weight" => "4");
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$form["drop_tables"]["descrip"] = array (
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"#type" => "item",
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"#value" => "Drop tables from database. All collected data is ". "lost. You cannot reverse this so backup if you are not sure ". "what you are doing");
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$form["drop_tables"]["op"] = array("#type" => "submit",
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"#value" => t("drop_carbon_tables"));
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/*
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$form["show_orphans"] = array("#type" => "fieldset",
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"#title" => t("Orphaned carbon stamps"),
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"#weight" => "2",
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);
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$form["show_orphans"]["op"] = array("#type" => "submit", "#value" => t("show_orphans"));
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*/
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return $form ;
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}
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function carbon_admin($a = NULL, $b = NULL, $c = NULL)
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{
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$map = _map_of_footprints();
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$map_values = array_values($map);
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$map_keys = array_keys($map);
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$footprint_idx = isset($_POST["edit"]["footprint_idx"]) ? $_POST["edit"]["footprint_idx"] : 0 ;
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$output = "" ;
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if (isset($_POST["op"]))
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{
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$op = $_POST["op"];
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$fn = "_".$op ;
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if (function_exists($fn))
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{
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$footprint = $map_values[$footprint_idx];
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$fid = $map_keys[$footprint_idx];
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$result = $fn($footprint, $fid);
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// $form seems to get cached, added field not diplayed!!
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$output .= $result ;
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$form[$op]["result0"] = array (
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"#type" => "item",
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"#weight" => "-5",
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"#value" => "oidjioew") ;
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}
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else
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$output = "function ". $op . " does not exist or is not installed" ;
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}
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drupal_set_message($output);
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$output .= drupal_get_form("carbon_admin_form", null);
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return $output ;
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}
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function _map_of_footprints()
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{
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require_once(CARBON_PATH."/carbon_report.inc");
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$map = carbon_report_base(null, null, array());
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$map2 = array();
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foreach($map as $nid=>$footprint)
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{
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$map2[$nid] = $footprint->title ;
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}
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return $map2 ;
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}
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function _check_tables()
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{
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$tables = _check_tables_present(array("carbon_source", "carbon_account",
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"carbon_stamp", "carbon_transfer", "carbon_stamp_account", "carbon_account_share"));
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$out = "" ;
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$num = 0 ;
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$header = array(
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array("data" => t("table name")),
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array("data" => t("rows in table")),
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array("data" => t("nodes of this type"))
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);
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$rows = array();
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foreach($tables as $tablename => $record)
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{
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if (!isset($record["rowcount"]))
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$rows[] = array($tablename, "not present", "not present") ;
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else
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{
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$num++ ;
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$rows[] = array($tablename, $record["rowcount"], $record["nodecount"]);
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}
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}
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$out = theme("table", $header, $rows);
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return $out ;
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}
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function _db_table_exists($table) {
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return db_result(db_query("SHOW TABLES LIKE '{" . db_escape_table($table) . "}'"));
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}
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/**
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* This may only work with mysql
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*
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* @param an array of table names
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* @return an array of key pairs that contain the name and row count.
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*/
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function _check_tables_present($tablename)
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{
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$sql = "show tables";
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$table2 = array();
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$num = 0 ;
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foreach ($tablename as $name)
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{
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if (_db_table_exists($name))
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{
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$db_query2 = db_query("select count(*) as count from ".$name);
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$result2 = db_fetch_object($db_query2);
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$table2[$name]["rowcount"] = $result2->count ;
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$db_query3 = db_query("select count(*) as count from node where type = '".$name."'");
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$result3 = db_fetch_object($db_query3);
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$table2[$name]["nodecount"] = $result3->count ;
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}
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else
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$table2[$name]["rowcount"] = $table2[$name]["nodecount"] = "" ;
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}
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return $table2 ;
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}
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function _install_carbon_sources()
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{
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carbon_source_install_default();
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}
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function _check_ownership()
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{
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$sql = "select fn.title, fu.name footprint_owner, su.name stamp_owner, sn.status as published, count(*) number " .
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"from carbon_stamp_account sf " .
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"join node fn on fn.nid = sf.fid " .
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"join node sn on sn.nid = sf.sid join users fu on fn.uid=fu.uid " .
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"join users su on sn.uid = su.uid " .
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"where fn.uid != sn.uid group by fn.title, fu.name, su.name, sn.status ; ";
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$db_query = db_query($sql);
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$rows = array();
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$num = 0 ;
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while ($record = db_fetch_object($db_query))
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{
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$rows[] = array($record->title, $record->footprint_owner,
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$record->stamp_owner,$record->published, $record->number);
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$num++ ;
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}
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$header = array(
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array("data" => t("title")),
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array("data" => t("footprint_owner")),
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array("data" => t("stamp_owner")),
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array("data" => t("published")),
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array("data" => t("number"))
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);
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return $num > 0 ? theme("table", $header, $rows) : "no stamps found with incorrect or invalid ownership" ;
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}
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function _repair_ownership()
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{
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$sql = "update carbon_stamp_account sf " .
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"join node fn on fn.nid = sf.fid join node sn on sn.nid = sf.sid " .
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"join users fu on fn.uid=fu.uid join users su on sn.uid = su.uid " .
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"set sn.uid = fn.uid " .
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"where fn.uid != sn.uid ";
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$db_query = db_query($sql);
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return $db_query ? "done" : "failed" ;
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}
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/**
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* take care if you change this sql or you might delete all your data
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* needs mysql subqueries
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*/
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function _purge_nodes()
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{
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$db_query1 = db_query(
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"delete from node where node.type = 'carbon_account' " .
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"and not exists (select nid from carbon_account where carbon_account.nid = node.nid); "
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);
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$db_query2 = db_query(
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"delete from node where node.type = 'carbon_stamp' " .
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"and not exists (select nid from carbon_stamp where carbon_stamp.nid = node.nid); "
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);
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$db_query3 = db_query(
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"delete from node where node.type = 'carbon_transfer' " .
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"and not exists (select nid from carbon_transfer where carbon_transfer.nid = node.nid); "
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);
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$db_query4 = db_query(
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"delete from node where node.type = 'carbon_source' " .
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"and not exists (select nid from carbon_source where carbon_source.nid = node.nid); "
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);
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return t("done") ;
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}
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function _purge_rows()
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{
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return t("not implemented") ;
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}
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function _show_orphans()
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{
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return t("not implemented") ;
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}
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function _remove_module()
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{
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$db_query1 = db_query(
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"delete from system where name = 'carbon'"
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);
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return "module removed" ;
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}
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function _drop_carbon_tables()
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{
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$res = _drop_tables();
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return "drop tables " . $res == 0 ? "failed" : "ok" ;
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}
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function _check_orphans()
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{
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return 42 ;
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}
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?>
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