Add basis for database upgrades

code/web/public_php/ams/index.php

@@ -18,7 +18,7 @@ ini_set( 'display_errors', 'on' );
 class SystemExit extends Exception {}
 try {
 
-if (!file_exists( '../config.php')) {
+if (!file_exists('../role_support')) {
 	header("Cache-Control: max-age=1");
 	header('Location: ../setup', true, 303);
 	throw new SystemExit();

code/web/public_php/setup/database.php

@@ -0,0 +1,108 @@
+<?php
+
+function set_db_version($continue_r, $name, $version) {
+	$continue = $continue_r;
+
+	if (file_put_contents("db_version_" . $name, (string)$version)) {
+	} else {
+		printalert("danger", "Failed to set database version");
+		$continue = false;
+	}
+
+	return $continue;
+}
+
+function get_db_version($name) {
+	if (!file_exists("db_version_" . $name)) {
+		return 0;
+	}
+	return (int)file_get_contents("db_version_" . $name);
+}
+
+function connect_database($continue, $name) {
+	$con = null;
+
+	global $cfg;
+	if ($continue) {
+		$con = mysqli_connect(
+			$cfg['db'][$name]['host'],
+			$cfg['db'][$name]['user'],
+			$cfg['db'][$name]['pass'],
+			$cfg['db'][$name]['name']);
+		if (mysqli_connect_errno()) {
+			printalert("danger", "Failed to connect to the <em>" . $name . "</em> SQL server: " . mysqli_connect_error());
+			$con = null;
+		} else {
+			printalert("success", "Connected to the <em>" . $name . "</em> SQL server");
+		}
+	}
+
+	return $con;
+}
+
+function disconnect_database($con, $name) {
+	if ($con) {
+		mysqli_close($con);
+		printalert("info", "Disconnected from the <em>" . $name . "</em> SQL server");
+	}
+}
+
+function upgrade_service_databases($continue_r) {
+	$continue = $continue_r;
+
+	$con = null;
+	$con = connect_database($continue, "shard");
+	$continue = ($con != null);
+	if ($continue && get_db_version("shard") < 1) {
+		$continue = update_database_structure($continue, $con, "nel_00001.sql");
+		$continue = set_db_version($continue, "shard", 1);
+	}
+	disconnect_database($con, "shard");
+
+	$con = null;
+	$con = connect_database($continue, "tool");
+	$continue = ($con != null);
+	if ($continue && get_db_version("tool") < 1) {
+		$continue = update_database_structure($continue, $con, "nel_tool_00001.sql");
+		$continue = set_db_version($continue, "tool", 1);
+	}
+	disconnect_database($con, "tool");
+
+	return $continue;
+}
+
+function upgrade_support_databases($continue_r) {
+	$continue = $continue_r;
+
+	$con = null;
+	$con = connect_database($continue, "web");
+	$continue = ($con != null);
+	if ($continue && get_db_version("web") < 1) {
+		$continue = update_database_structure($continue, $con, "nel_ams_00001.sql");
+		$continue = set_db_version($continue, "web", 1);
+	}
+	disconnect_database($con, "web");
+
+	$con = null;
+	$con = connect_database($continue, "lib");
+	$continue = ($con != null);
+	if ($continue && get_db_version("lib") < 1) {
+		$continue = update_database_structure($continue, $con, "nel_ams_lib_00001.sql");
+		$continue = set_db_version($continue, "lib", 1);
+	}
+	if ($continue && get_db_version("lib") < 2) {
+		$continue = update_database_structure($continue, $con, "nel_ams_lib_00002.sql");
+		$continue = set_db_version($continue, "lib", 2);
+	}
+	disconnect_database($con, "lib");
+
+	return $continue;
+}
+
+function upgrade_domain_databases($continue_r) {
+	$continue = $continue_r;
+
+	return $continue;
+}
+
+?>

code/web/public_php/setup/install.php

@@ -75,11 +75,9 @@ include('header.php');
 	if ($roleService) {
 		// Create NeL database
 		$continue = create_use_database($continue, $con, $_POST["nelDatabase"]);
-		$continue = update_database_structure($continue, $con, "nel_00001.sql");
 
 		// Create NeL Tools database
 		$continue = create_use_database($continue, $con, $_POST["toolDatabase"]);
-		$continue = update_database_structure($continue, $con, "nel_tool_00001.sql");
 	}
 
 	if ($con) {
@@ -101,12 +99,9 @@ include('header.php');
 
 		// Create AMS database
 		$continue = create_use_database($continue, $con, $_POST["amsDatabase"]);
-		$continue = update_database_structure($continue, $con, "nel_ams_00001.sql");
 
 		// Create AMS Library database
 		$continue = create_use_database($continue, $con, $_POST["amsLibDatabase"]);
-		$continue = update_database_structure($continue, $con, "nel_ams_lib_00001.sql");
-		$continue = update_database_structure($continue, $con, "nel_ams_lib_00002.sql");
 
 		if ($con) {
 			mysqli_close($con);
@@ -158,6 +153,20 @@ include('header.php');
 		}
 	}
 
+	require_once('database.php');
+
+	if ($roleSupport) {
+		$continue = upgrade_support_databases($continue);
+	}
+
+	if ($roleService) {
+		$continue = upgrade_service_databases($continue);
+	}
+
+	if ($roleDomain) {
+		$continue = upgrade_domain_databases($continue);
+	}
+
 	if ($roleSupport) {
 		// Load AMS Library
 		if ($continue) {
@@ -191,7 +200,7 @@ include('header.php');
 		}
 	}
 
-	if ($continue && $roleSupport) {
+	if ($continue && $roleService) {
 		if (file_put_contents("role_service", "1")) {
 			printalert("success", "Service role successfully installed");
 		} else {