mirror of
https://github.com/FH-Complete/FHC-Core.git
synced 2026-06-19 21:19:29 +00:00
Andreas Moik
319 lines
12 KiB
PHP
319 lines
12 KiB
PHP
<?php
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/* Copyright (C) 2015 FH Technikum-Wien
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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
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* published by the Free Software Foundation; either version 2 of the
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* License, or (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
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
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*
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* Authors: Andreas Moik <moik@technikum-wien.at>,
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*
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* Beschreibung:
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* Dieses Skript prueft die Datenbank auf Aenderungen bezueglich eine_uid, dabei werden fehlende Attribute angelegt.
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*/
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require_once('../config/system.config.inc.php');
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require_once('../include/basis_db.class.php');
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$db = new basis_db();
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echo '<html>
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<head>
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<title>CS-EineUid</title>
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
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<link rel="stylesheet" href="../skin/vilesci.css" type="text/css" />
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</head>
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<body>';
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$all_tables_to_update =
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array
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(
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array("schema" => "bis", "name" => "tbl_bisio", "from" => "student_uid", "to" => "prestudent_id", "datatype" => "int", "newTarget" => "tbl_prestudent", "newTargetSchema" => "public", "pickDataFrom" => "tbl_student", "pickDataFromCol" => "student_uid"),
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array("schema" => "campus", "name" => "tbl_lvgesamtnote", "from" => "student_uid", "to" => "prestudent_id", "datatype" => "int", "newTarget" => "tbl_prestudent", "newTargetSchema" => "public", "pickDataFrom" => "tbl_student", "pickDataFromCol" => "student_uid"),
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array("schema" => "campus", "name" => "tbl_studentbeispiel", "from" => "student_uid", "to" => "uid", "datatype" => "varchar(32)", "newTarget" => "tbl_benutzer", "newTargetSchema" => "public", "pickDataFrom" => "tbl_benutzer", "pickDataFromCol" => "uid" ),
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array("schema" => "campus", "name" => "tbl_studentuebung", "from" => "student_uid", "to" => "uid", "datatype" => "varchar(32)", "newTarget" => "tbl_benutzer", "newTargetSchema" => "public", "pickDataFrom" => "tbl_benutzer", "pickDataFromCol" => "uid" ),
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array("schema" => "campus", "name" => "tbl_legesamtnote", "from" => "student_uid", "to" => "prestudent_id", "datatype" => "int", "newTarget" => "tbl_prestudent", "newTargetSchema" => "public", "pickDataFrom" => "tbl_student", "pickDataFromCol" => "student_uid"),
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array("schema" => "lehre", "name" => "tbl_abschlusspruefung", "from" => "student_uid", "to" => "prestudent_id", "datatype" => "int", "newTarget" => "tbl_prestudent", "newTargetSchema" => "public", "pickDataFrom" => "tbl_student", "pickDataFromCol" => "student_uid"),
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);
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if(!isset($_POST["action"]))
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{
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$needed = false;
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foreach($all_tables_to_update as $t)
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{
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if(checkForUpdates($db, $t))
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$needed = true;
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}
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if($needed)
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{
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echo "<h2 style='color:red;'>ACHTUNG!</h2>";
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echo "<h3>Folgendes wird geändert:</h3>";
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echo "<p>";
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foreach($all_tables_to_update as $t)
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describeOneChange($db, $t);
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echo "</p>";
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echo "
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<form action='dbupdate_eine_uid.php' method='POST' name='startform'>
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<input type='submit' value='Starten' name='action'>
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</form>";
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}
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else
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{
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echo "<h2>Es sind keine Änderungen vorzunehmen!</h2>";
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}
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}
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else if($_POST["action"] == "Starten")
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{
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echo '<H1>Systemcheck!</H1>';
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echo '<H2>DB-Updates!</H2>';
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// *** Pruefung und hinzufuegen der neuen Attribute und Tabellen
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echo '<H2>Pruefe Tabellen und Attribute!</H2>';
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//********************************DROP ALL VIEWS********************************
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if($result = @$db->db_query("SELECT 1 FROM bis.vw_bisio LIMIT 1;"))
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{
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if(!$db->db_query("DROP VIEW bis.vw_bisio"))
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{
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echo "<p>Could not DROP view bis.vw_bisio: " . $create_view_qry."</p>";
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}
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}
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//modify all tables
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foreach($all_tables_to_update as $t)
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modifyOneTable($db, $t);
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if(!$result = @$db->db_query("SELECT 1 FROM bis.vw_bisio LIMIT 1;"))
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{
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//********************************CREATE ALL VIEWS AGAIN********************************
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$create_view_qry = "
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CREATE VIEW bis.vw_bisio AS SELECT tbl_prestudentstatus.studiensemester_kurzbz,
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tbl_prestudentstatus.status_kurzbz,
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tbl_prestudent.person_id,
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tbl_prestudent.prestudent_id,
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tbl_bisio.bisio_id,
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tbl_bisio.mobilitaetsprogramm_code,
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tbl_bisio.nation_code,
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tbl_bisio.von,
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tbl_bisio.bis,
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tbl_bisio.zweck_code,
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tbl_bisio.ort,
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tbl_bisio.universitaet,
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tbl_bisio.lehreinheit_id,
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tbl_student.matrikelnr,
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tbl_student.student_uid,
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tbl_prestudent.studiengang_kz,
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tbl_student.semester,
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tbl_prestudent.aufmerksamdurch_kurzbz,
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tbl_prestudent.berufstaetigkeit_code,
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tbl_prestudent.ausbildungcode,
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tbl_prestudent.zgv_code,
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tbl_prestudent.zgvort,
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tbl_prestudent.zgvdatum,
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tbl_prestudent.zgvmas_code,
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tbl_prestudent.zgvmaort,
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tbl_prestudent.zgvmadatum,
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tbl_prestudent.aufnahmeschluessel,
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tbl_prestudent.facheinschlberuf,
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tbl_prestudent.reihungstest_id,
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tbl_prestudent.anmeldungreihungstest,
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tbl_prestudent.reihungstestangetreten,
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tbl_prestudent.rt_gesamtpunkte,
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tbl_prestudent.bismelden,
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tbl_prestudent.dual,
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tbl_prestudent.rt_punkte1,
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tbl_prestudent.rt_punkte2,
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tbl_prestudent.ausstellungsstaat,
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tbl_prestudent.rt_punkte3,
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tbl_prestudent.zgvdoktor_code,
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tbl_prestudent.zgvdoktorort,
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tbl_prestudent.zgvdoktordatum,
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tbl_prestudent.mentor,
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tbl_prestudent.zgvnation,
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tbl_prestudent.zgvmanation,
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tbl_prestudent.zgvdoktornation,
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tbl_prestudentstatus.ausbildungssemester,
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tbl_prestudentstatus.datum,
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tbl_prestudentstatus.orgform_kurzbz,
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tbl_prestudentstatus.studienplan_id,
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tbl_prestudentstatus.bestaetigtam,
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tbl_prestudentstatus.bestaetigtvon,
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tbl_prestudentstatus.fgm,
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tbl_prestudentstatus.faktiv,
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tbl_prestudentstatus.bewerbung_abgeschicktamum
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FROM bis.tbl_bisio
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JOIN tbl_student USING (prestudent_id)
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JOIN tbl_prestudent USING (prestudent_id)
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LEFT JOIN tbl_prestudentstatus ON tbl_prestudent.prestudent_id = tbl_prestudentstatus.prestudent_id AND (tbl_prestudentstatus.status_kurzbz::text = 'Incoming'::text OR tbl_prestudentstatus.status_kurzbz::text = 'Outgoing'::text);
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COMMENT ON VIEW bis.vw_bisio IS 'Incoming Outgoing';";
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if(!$db->db_query($create_view_qry))
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{
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echo "<p>Could not CREATE view bis.vw_bisio: " . $create_view_qry."</p>";
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}
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}
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}
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echo '</body></html>';
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/* FUNCTIONS */
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function describeOneChange($db, $table)
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{
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if(!$result = @$db->db_query('SELECT '.$table["to"].' FROM '.$table["schema"].'.'.$table["name"].' LIMIT 1;'))
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{
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echo "<div>".$table["schema"].".".$table["name"].": ".$table["from"]." wird <strong style='color:red;'>gelöscht</strong>!</div>";
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echo "<div>".$table["schema"].".".$table["name"].": ".$table["to"]." wird <strong style='color:green;'>eingefügt</strong>!</div>";
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}
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}
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function checkForUpdates($db, $table)
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{
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if(!$result = @$db->db_query('SELECT '.$table["to"].' FROM '.$table["schema"].'.'.$table["name"].' LIMIT 1;'))
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{
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return true;
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}
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return false;
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}
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function modifyOneTable($db, $table)
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{
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if(!$result = @$db->db_query('SELECT '.$table["to"].' FROM '.$table["schema"].'.'.$table["name"].' LIMIT 1;'))
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{
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$db->db_query("BEGIN;");
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$indices = array();
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$primary_keys = array();
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$index_search_result = $db->db_query("SELECT * FROM pg_indexes WHERE schemaname=".$db->db_add_param($table["schema"])." AND tablename=".$db->db_add_param($table["name"]));
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while($row = $db->db_fetch_object($index_search_result))
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{
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$check_if_pk_result = $db->db_query("select * from pg_constraint where conname=".$db->db_add_param($row->indexname));
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if($db->db_num_rows($check_if_pk_result) == 1)
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{
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$get_definition_result = $db->db_query(
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"SELECT conrelid::regclass AS table_from
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,conname
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,pg_get_constraintdef(c.oid)
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FROM pg_constraint c
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JOIN pg_namespace n ON n.oid = c.connamespace
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WHERE contype IN ('f', 'p ')
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AND n.nspname = ".$db->db_add_param($row->schemaname)."
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AND conname = ".$db->db_add_param($row->indexname)."
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ORDER BY conrelid::regclass::text, contype DESC;");
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$def = $db->db_fetch_object($get_definition_result);
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if(!$pk_drop_result = $db->db_query('ALTER TABLE '.$table["schema"].".".$table["name"].' DROP CONSTRAINT '.$row->indexname))
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{
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echo "<p><span style='color:red;'>ACHTUNG:</span> DROPPEN von PRIMARY KEY ".$row->indexname." fehlgeschlagen</p>";
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$db->db_query("ROLLBACK;");
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return;
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}
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$constraint_add_query = str_replace ($table["from"], $table["to"], $def->pg_get_constraintdef );
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$primary_keys[] = 'ALTER TABLE '.$table["schema"].".".$table["name"].' ADD CONSTRAINT '.$row->indexname.' '.$constraint_add_query;
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}
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else
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{
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if(!$index_drop_result = $db->db_query('DROP INDEX '.$table["schema"].".".$row->indexname))
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{
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echo "<p><span style='color:red;'>ACHTUNG:</span> DROPPEN von INDEX ".$row->indexname." fehlgeschlagen</p>";
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$db->db_query("ROLLBACK;");
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return;
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}
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$index_add_query = str_replace ($table["from"], $table["to"], $row->indexdef );
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$indices[] = $index_add_query;
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}
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}
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//spalte einfuegen
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$alter_update_qry = 'ALTER TABLE '.$table["schema"].'.'.$table["name"].' ADD COLUMN '.$table["to"].' '.$table["datatype"].';
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UPDATE '.$table["schema"].".".$table["name"].' SET '.$table["to"].' = (SELECT '.$table["to"].' FROM '.$table["newTargetSchema"].'.'.$table["pickDataFrom"].' WHERE '.$table["pickDataFromCol"].'='.$table["schema"].'.'.$table["name"].'.'.$table["from"].');';
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$db->db_query($alter_update_qry);
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//constraints: $TO FK, $TO NOT NULL
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$constraint_qry = 'ALTER TABLE '.$table["schema"].".".$table["name"].' ALTER COLUMN '.$table["to"].' SET NOT NULL;
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ALTER TABLE '.$table["schema"].".".$table["name"].' ADD CONSTRAINT fk_'.$table["name"].'_'.$table["newTarget"].'_'.$table["to"].' FOREIGN KEY ('.$table["to"].') REFERENCES '.$table["newTargetSchema"].'.'.$table["newTarget"].' ('.$table["to"].');';
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if(!$db->db_query($constraint_qry))
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{
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echo '<strong>'.$table["schema"].".".$table["name"].': '.$db->db_last_error().'</strong><br>';
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}
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else
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{
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echo ' '.$table["schema"].".".$table["name"].': Spalte '.$table["to"].' hinzugefuegt!<br>';
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echo ' '.$table["schema"].".".$table["name"].': Spalte '.$table["from"].' auf '.$table["to"].' geändert!<br>';
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echo ' '.$table["schema"].".".$table["name"].': Spalte '.$table["to"].' constraints eingefuegt!<br>';
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//FROM löschen
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$qry = 'ALTER TABLE '.$table["schema"].".".$table["name"].' DROP COLUMN '.$table["from"].';';
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if(!$db->db_query($qry))
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{
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echo '<strong>'.$table["schema"].".".$table["name"].': '.$db->db_last_error().'</strong><br>';
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echo '<strong>'.$table["schema"].".".$table["name"].': ACHTUNG! In diesem Fall sollte '.$table["to"].' ordnungsgemäß eingetragen sein, jedoch '.$table["from"].' nicht gelöscht worden sein. Das Skript erneut zu starten wird nicht funktionieren!</strong><br>';
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}
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else
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{
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echo ' '.$table["schema"].".".$table["name"].': Spalte '.$table["from"].' gelöscht!<br>';
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foreach( $primary_keys as $pk)
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{
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if(!$pk_add_result = $db->db_query($pk))
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{
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echo "<p><span style='color:red;'>ACHTUNG:</span> ADDEN von PRIMARY KEY ".$row->indexname." fehlgeschlagen</p>";
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$db->db_query("ROLLBACK;");
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return;
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}
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}
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foreach( $indices as $ind)
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{
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if(!$index_add_result = $db->db_query($ind))
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{echo $ind;
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echo "<p><span style='color:red;'>ACHTUNG:</span> ADDEN von INDEX ".$row->indexname." fehlgeschlagen</p>";
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$db->db_query("ROLLBACK;");
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return;
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}
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}
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$db->db_query("COMMIT;");
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return;
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}
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}
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}
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}
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?>
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