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add the database updater code, and always ensure that the code and db are running the same version

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james 2005-03-10 17:28:15 +00:00
parent f89b130fd3
commit 81e1559b8d
6 changed files with 105 additions and 0 deletions
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24
common.inc.php
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@ -22,6 +22,30 @@
*/
?>
<?
//first things first - make sure our DB version matches our CODE version
$dbcodeversion=@file("db/db.code.version.txt");
$dbdbversion=@file("db/db.db.version.txt");
if($dbcodeversion[0]!=$dbdbversion[0])
{
echo "<html><head><title>SFIAB ERROR</title></head><body>";
echo "<h1>Science Fair In A Box - ERROR</h1>";
echo "SFIAB database and code are mismatched";
echo "<br>";
echo "Please run the db_update.php script in order to update";
echo "<br>";
echo "your database to the same version as the code";
echo "<br>";
echo "<br>";
echo "<br>";
echo "<h2>Details</h2>";
echo "Current SFIAB codebase requires DB version: ".$dbcodeversion[0];
echo "<br>";
echo "Current SFIAB database is detected as version: ".$dbdbversion[0];
echo "<br>";
echo "</body></html>";
exit;
}
require_once("config.inc.php");
require_once("committee_auth.php");
mysql_connect($DBHOST,$DBUSER,$DBPASS);

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db/FILES Normal file
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db.code.version.txt - contains the version number of the database that the code requires
db.db.version.txt - contains the actual version number of the database
db_update.php - will update the db to the newest version (db.code=db.db)
db.update.1.sql - the SQL commands required to update - to upgrade across multiple versions
db.update.2.sql - each file should be executed in sequence from the current version up.
db.update.3.sql - etc

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db/db.code.version.txt Normal file
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2

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db/db.update.1.sql Normal file
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db/db.update.2.sql Normal file
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ALTER TABLE `judges` ADD `complete` ENUM( 'no', 'yes' ) DEFAULT 'no' NOT NULL;

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db/db_update.php Normal file
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<?
if(file_exists("db.code.version.txt"))
{
$dbcodeversion_file=file("db.code.version.txt");
$dbcodeversion=trim($dbcodeversion_file[0]);
}
else
{
echo "Couldnt load current db.code.version.txt\n";
exit;
}
if(file_exists("db.db.version.txt"))
{
$dbdbversion_file=file("db.db.version.txt");
$dbdbversion=trim($dbdbversion_file[0]);
}
else
{
echo "Couldnt load current db.db.version.txt - assuming version is 1\n";
$dbdbversion=1;
}
if($dbcodeversion && $dbdbversion)
{
//lets see if they match
if($dbcodeversion == $dbdbversion)
{
echo "DB and CODE are all up-to-date. Version: $dbdbversion\n";
exit;
}
else if($dbcodeversion<$dbdbversion)
{
echo "ERROR: dbcodeversion<dbdbversion ($dbcodeversion<$dbdbversion). This should not happen!";
}
else if($dbcodeversion>$dbdbversion)
{
echo "DB update requirements detected\n";
echo "Current DB Version: $dbdbversion\n";
echo "Current CODE Version: $dbcodeversion\n";
echo "Updating database from $dbdbversion to $dbcodeversion\n";
//include the config.inc.php
//so we have the db connection info
require("../config.inc.php");
for($ver=$dbdbversion+1;$ver<=$dbcodeversion;$ver++)
{
if(file_exists("db.update.$ver.sql"))
{
echo "db.update.$ver.sql detected - running...\n";
system("mysql -h$DBHOST -u$DBUSER -p$DBPASS $DBNAME <db.update.$ver.sql");
}
else
{
echo "Version $ver update file not found - skipping over\n";
}
}
$fp=fopen("db.db.version.txt","w");
fputs($fp,$dbcodeversion."\n");
fclose($fp);
}
}
else
{
echo "ERROR: dbcodeversion and dbdbversion are not defined\n";
}
?>