124 lines
2.2 KiB
Perl
Executable File
124 lines
2.2 KiB
Perl
Executable File
#!/usr/bin/perl
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##
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## MAIN
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##
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$table_name="";
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$old_name="";
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$references_table="";
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$references_column="";
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$is_create=0;
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while ( <> )
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{
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chop;
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$str=$_ ;
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if ($is_create == 1) {
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$table_name=$str;
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$is_create=2;
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}
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if ( $str =~ /^CREATE TABLE/ ){
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$is_create=1;
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}
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if ($is_create == 2) {
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if ($str =~ /^FOREIGN KEY/){
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($d1,$d2,$d3,$columns,$d4,$d5,$references_table,$d6) = split (/ /,$str,8);
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#printf "Table $table_name $columns $references_table\n";
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if ($table_name ne $old_name ){
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printf "--\n-- Trigger for $table_name\n--\n\n";
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}
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foreach $i ( split(/,/ , $columns ) ){
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print "CREATE INDEX I_$table_name";
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print "_$i ON $table_name ( $i ) ;\n";
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}
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printf "\nCREATE TRIGGER T_P_$table_name";
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printf "_$references_table BEFORE INSERT OR UPDATE ON $table_name FOR EACH ROW\n" ;
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printf "EXECUTE PROCEDURE\n";
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printf "check_primary_key(";
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$val=0;
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foreach $i ( split(/,/ , $columns ) ){
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print "'$i',";
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$val=$val+1 ;
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}
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print "'$references_table',";
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$t=1;
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foreach $i ( split(/,/,$columns ) ){
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print "'$i'";
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if ( $t < $val ) {
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printf ",";
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}
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$t=$t+1;
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}
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print " );\n\n";
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printf "CREATE TRIGGER T_F_D_$references_table";
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printf "_$table_name BEFORE DELETE ON $references_table FOR EACH ROW\n" ;
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printf "EXECUTE PROCEDURE\n";
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printf "check_foreign_key(1,'cascade',";
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$val=0;
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foreach $i ( split(/,/ , $columns ) ){
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print "'$i',";
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$val=$val+1 ;
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}
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print "'$table_name',";
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$t=1;
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foreach $i ( split(/,/,$columns ) ){
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print "'$i'";
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if ( $t < $val ) {
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printf ",";
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}
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$t=$t+1;
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}
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print " );\n\n";
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printf "CREATE TRIGGER T_F_U_$references_table";
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printf "_$table_name AFTER UPDATE ON $references_table FOR EACH ROW\n" ;
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printf "EXECUTE PROCEDURE\n";
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printf "check_foreign_key(1,'cascade',";
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$val=0;
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foreach $i ( split(/,/ , $columns ) ){
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print "'$i',";
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$val=$val+1 ;
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}
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print "'$table_name',";
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$t=1;
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foreach $i ( split(/,/,$columns ) ){
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print "'$i'";
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if ( $t < $val ) {
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printf ",";
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}
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$t=$t+1;
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}
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print " );\n\n";
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if ($table_name ne $old_name ){
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printf "-- ********************************\n\n\n";
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}
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$old_name=$table_name ;
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}
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}
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if ($str =~ /^\)\;/ ) {
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$is_create = 0 ;
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}
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}
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