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1 #!/usr/bin/php -q
2 <?php
3 //-------------------------------------------------------------------------------------------------
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573 //be similar in spirit to the present version, but may differ in detail to
574 //address new problems or concerns.
575 //
576 // Each version is given a distinguishing version number. If the
577 //Program specifies that a certain numbered version of the GNU General
578 //Public License "or any later version" applies to it, you have the
579 //option of following the terms and conditions either of that numbered
580 //version or of any later version published by the Free Software
581 //Foundation. If the Program does not specify a version number of the
582 //GNU General Public License, you may choose any version ever published
583 //by the Free Software Foundation.
584 //
585 // If the Program specifies that a proxy can decide which future
586 //versions of the GNU General Public License can be used, that proxy's
587 //public statement of acceptance of a version permanently authorizes you
588 //to choose that version for the Program.
589 //
590 // Later license versions may give you additional or different
591 //permissions. However, no additional obligations are imposed on any
592 //author or copyright holder as a result of your choosing to follow a
593 //later version.
594 //
595 // 15. Disclaimer of Warranty.
596 //
597 // THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
598 //APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
599 //HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
600 //OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
601 //THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
602 //PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
603 //IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
604 //ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
605 //
606 // 16. Limitation of Liability.
607 //
608 // IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
609 //WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
610 //THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
611 //GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
612 //USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
613 //DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
614 //PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
615 //EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
616 //SUCH DAMAGES.
617 //
618 // 17. Interpretation of Sections 15 and 16.
619 //
620 // If the disclaimer of warranty and limitation of liability provided
621 //above cannot be given local legal effect according to their terms,
622 //reviewing courts shall apply local law that most closely approximates
623 //an absolute waiver of all civil liability in connection with the
624 //Program, unless a warranty or assumption of liability accompanies a
625 //copy of the Program in return for a fee.
626 //
627 // END OF TERMS AND CONDITIONS
628 //
629 // How to Apply These Terms to Your New Programs
630 //
631 // If you develop a new program, and you want it to be of the greatest
632 //possible use to the public, the best way to achieve this is to make it
633 //free software which everyone can redistribute and change under these terms.
634 //
635 // To do so, attach the following notices to the program. It is safest
636 //to attach them to the start of each source file to most effectively
637 //state the exclusion of warranty; and each file should have at least
638 //the "copyright" line and a pointer to where the full notice is found.
639 //
640 // <one line to give the program's name and a brief idea of what it does.>
641 // Copyright (C) <year> <name of author>
642 //
643 // This program is free software: you can redistribute it and/or modify
644 // it under the terms of the GNU General Public License as published by
645 // the Free Software Foundation, either version 3 of the License, or
646 // (at your option) any later version.
647 //
648 // This program is distributed in the hope that it will be useful,
649 // but WITHOUT ANY WARRANTY; without even the implied warranty of
650 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
651 // GNU General Public License for more details.
652 //
653 // You should have received a copy of the GNU General Public License
654 // along with this program. If not, see <http://www.gnu.org/licenses/>.
655 //
656 //Also add information on how to contact you by electronic and paper mail.
657 //
658 // If the program does terminal interaction, make it output a short
659 //notice like this when it starts in an interactive mode:
660 //
661 // <program> Copyright (C) <year> <name of author>
662 // This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
663 // This is free software, and you are welcome to redistribute it
664 // under certain conditions; type `show c' for details.
665 //
666 //The hypothetical commands `show w' and `show c' should show the appropriate
667 //parts of the General Public License. Of course, your program's commands
668 //might be different; for a GUI interface, you would use an "about box".
669 //
670 // You should also get your employer (if you work as a programmer) or school,
671 //if any, to sign a "copyright disclaimer" for the program, if necessary.
672 //For more information on this, and how to apply and follow the GNU GPL, see
673 //<http://www.gnu.org/licenses/>.
674 //
675 // The GNU General Public License does not permit incorporating your program
676 //into proprietary programs. If your program is a subroutine library, you
677 //may consider it more useful to permit linking proprietary applications with
678 //the library. If this is what you want to do, use the GNU Lesser General
679 //Public License instead of this License. But first, please read
680 //<http://www.gnu.org/philosophy/why-not-lgpl.html>.
681 //-------------------------------------------------------------------------------------------------//$Header: /home/dashley/cvsrep/e3ft_gpl01/e3ft_gpl01/webprojs/pamc/gen_a/sw/standalone/dbdropall.php,v 1.1 2007/07/01 01:05:23 dashley Exp $
682 //------------------------------------------------------------------------
683 //dbdropall.php -- Drops (deletes) all tables that are part of the
684 // database design. (Unrecognized tables are not dropped
685 // so as not to interfere with development or cause loss
686 // of data if the script is accidentally used on the
687 // wrong database.)
688 //------------------------------------------------------------------------
689 //Copyright (C)2007 David T. Ashley
690 //
691 //This program is free software; you can redistribute it and/or
692 //modify it under the terms of the GNU General Public License
693 //as published by the Free Software Foundation; either version 2
694 //of the License, or (at your option) any later version.
695 //
696 //This program is distributed in the hope that it will be useful,
697 //but WITHOUT ANY WARRANTY; without even the implied warranty of
698 //MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
699 //GNU General Public License for more details.
700 //
701 //You should have received a copy of the GNU General Public License
702 //along with this program; if not, write to the Free Software
703 //Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
704 //02110-1301, USA.
705 //------------------------------------------------------------------------
706 //Author Contact Information
707 //--------------------------
708 //David T. Ashley
709 //dta@e3ft.com
710 //P.O. Box 918
711 //Marshall MI 49068
712 //------------------------------------------------------------------------
713 set_include_path("../phplib");
714 require_once("ref_tables/pamc_files.inc");
715 require_once("ref_tables/db_design_tablelistonly.inc");
716 require_once("ref_tables/db_design.inc");
717 require_once("config/config.inc");
718 require_once("config/config_hard.inc");
719 //------------------------------------------------------------------------
720 //Writes a horizontal line.
721 //
722 function hline()
723 {
724 for ($i=0; $i<80; $i++)
725 {
726 echo "-";
727 }
728 echo "\n";
729 }
730 //
731 //--------------------------------------------------------------------------------
732 //Errors out.
733 //
734 function error_out()
735 {
736 echo "FATAL ERROR\n";
737 exit(1);
738 }
739 //
740 //--------------------------------------------------------------------------------
741 //Returns a version control string. Used for randomness.
742 //
743 function vc_info()
744 {
745 return("\$Header: /home/dashley/cvsrep/e3ft_gpl01/e3ft_gpl01/webprojs/pamc/gen_a/sw/standalone/dbdropall.php,v 1.1 2007/07/01 01:05:23 dashley Exp $");
746 }
747 //
748 //--------------------------------------------------------------------------------
749 function drop_database_tables($handle, &$failure)
750 {
751 global $config_hard;
752
753 //Figure out how many tables are in the database, and get their names. We want
754 //to do this so that we don't overwrite any existing tables or cause trouble.
755 //
756 echo "Figuring out what tables already exist in the database. This program won't\n";
757 echo "drop any tables that don't exist in the database design.\n\n";
758 //
759 $result = mysql_query("show tables", $handle);
760
761 if ($result === FALSE) //FALSE means query error.
762 error_out();
763
764 //Figure out the results.
765 $nexistingtables = mysql_num_rows($result);
766 for ($i=0; $i<$nexistingtables; $i++)
767 {
768 $temp = mysql_fetch_row($result);
769 $existing_tables_array[$i] = $temp[0];
770 }
771
772 //Tell how many tables.
773 if ($nexistingtables > 1)
774 echo $nexistingtables . " tables found in database:\n";
775 else if ($nexistingtables == 1)
776 echo $nexistingtables . " table found in database:\n";
777 else
778 echo "No tables found in database.\n";
779
780 //Emit the table names.
781 for ($i = 0; $i < $nexistingtables; $i++)
782 {
783 echo " " . $existing_tables_array[$i] . "\n";
784 }
785
786 hline();
787
788 //Get the array of tables.
789 $table_array = $config_hard['dbdesign']['detailed'];
790
791 //Iterate through, adding each table that is part of the database design
792 //to an array of tables to drop.
793 //
794 for ($tableidx=0; $tableidx<count($table_array); $tableidx++)
795 {
796 $preliminary_drop_list[] = $table_array[$tableidx]['name'];
797 }
798 //
799 //For each table part of the design that is already present, add it
800 //to the drop list.
801 //
802 for ($i=0; isset($existing_tables_array) && ($i<count($preliminary_drop_list)); $i++)
803 {
804 if (array_search($preliminary_drop_list[$i], $existing_tables_array) !== FALSE)
805 $final_drop_list[] = $preliminary_drop_list[$i];
806 }
807 //
808 //Drop the targeted tables.
809 //
810 if (!isset($final_drop_list))
811 {
812 echo "No tables to drop.\n";
813 hline();
814 }
815 else
816 {
817 echo "Tables that will be dropped are:\n";
818
819 for ($i=0; $i<count($final_drop_list); $i++)
820 {
821 echo " " . $final_drop_list[$i] . "\n";
822 }
823 hline();
824
825 for ($i=0; $i<count($final_drop_list); $i++)
826 {
827 $result = mysql_query("drop table " . $final_drop_list[$i], $handle);
828 if ($result !== FALSE)
829 {
830 echo "Drop of table \"" . $final_drop_list[$i] . "\" successful.\n";
831 }
832 else
833 {
834 echo "Drop failed.\n";
835 $failure = TRUE;
836 }
837 hline();
838 }
839 } //End else
840 } //End function
841 //
842 //--------------------------------------------------------------------------------
843 //--------------------------------------------------------------------------------
844 //--------------------------------------------------------------------------------
845 //------ M A I N S C R I P T ------------------------------------------------
846 //--------------------------------------------------------------------------------
847 //--------------------------------------------------------------------------------
848 //--------------------------------------------------------------------------------
849 //Start off believing no failure.
850 $failure = FALSE;
851
852 //If there are the wrong number of command-line parameters, error out.
853 if ($argc != 1)
854 {
855 echo "ERROR: This command accepts no command-line parameters.\n";
856 exit(1);
857 }
858 //
859 //Attempt to open the MySQL database. Error out if no success.
860 //
861 hline();
862 echo "Attempting to connect to MySQL database.\n";
863 $handle = mysql_connect($config['mysql']['server'], $config['mysql']['authuserid'], $config['mysql']['authpassword']);
864 if ($handle === FALSE)
865 {
866 echo "ERROR: Unable to connect and/or authenticate to MySQL database.\n";
867 exit(1);
868 }
869 echo "OK.\n";
870 hline();
871 //
872 //
873 //Attempt to select the database specified. If we can't do this, error out.
874 //
875 echo "Attempting to select database \"" . $config['mysql']['dbname'] . "\".\n";
876 $result = mysql_select_db($config['mysql']['dbname'], $handle);
877 if ($result === FALSE)
878 {
879 echo "ERROR: Unable to select MySQL database \"" . CONFIG_MYSQL_DATABASE . "\".\n";
880 $result = mysql_close($handle);
881 if ($result === FALSE)
882 {
883 echo "ERROR: Unable to close MySQL connection.\n";
884 exit(1);
885 }
886 exit(1);
887 }
888 echo "OK.\n";
889 hline();
890 //
891 //Attempt to drop the database tables. The rule is that each informational message
892 //has to be terminated by its own horizontal line.
893 echo "Dropping database tables ...\n";
894 hline();
895 drop_database_tables($handle, $failure);
896
897 //Attempt to close the database connection. Error out if trouble.
898 //
899 echo "Attempting to close database connection.\n";
900 $result = mysql_close($handle);
901 if ($result === FALSE)
902 {
903 echo "ERROR: Unable to close MySQL connection.\n";
904 exit(1);
905 }
906 echo "OK.\n";
907 hline();
908
909 //If we're here, success, plus or minus a little. Emit a banner to indicate
910 //full success or suspicious conditions.
911 if (!$failure)
912 {
913 echo "OK (no major errors, minor errors, or suspicious conditions encountered).\n";
914 hline();
915 }
916 else
917 {
918 echo "MINOR ERRORS OR SUSPICIOUS CONDITIONS ENCOUNTERED.\n";
919 echo "Please check output above carefully.\n";
920 hline();
921 }
922 //
923 exit(0);
924 //
925 //--------------------------------------------------------------------------------
926 //End of $RCSfile: dbdropall.php,v $.
927 //--------------------------------------------------------------------------------
928 ?>

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