2 # dbi.pl: DBI (mysql/pgsql/sqlite) database frontend.
4 # Version: v0.9a (20021124)
6 # Notes: based on db_mysql.pl
7 # overhauled to be 31337.
13 use vars qw($dbh $shm $bot_data_dir);
18 # &sqlOpenDB($dbname, $dbtype, $sqluser, $sqlpass, $nofail);
20 my ($db, $type, $user, $pass, $no_fail) = @_;
21 # this is a mess. someone fix it, please.
22 if ($type =~ /^SQLite$/i) {
23 $db = "dbname=$db.sqlite";
24 } elsif ($type =~ /^pg/i) {
29 my $dsn = "DBI:$type:$db";
31 # SQLHost should be unset for SQLite
32 if (exists $param{'SQLHost'} and $param{'SQLHost'}) {
33 $dsn .= ":$param{SQLHost}";
34 $hoststr = " to $param{'SQLHost'}";
36 # SQLite ignores $user and $pass
37 $dbh = DBI->connect($dsn, $user, $pass);
39 if ($dbh && !$dbh->err) {
40 &status("Opened $type connection$hoststr");
42 &ERROR("cannot connect$hoststr.");
43 &ERROR("since $type is not available, shutting down bot!");
44 &ERROR( $dbh->errstr ) if ($dbh);
49 return 0 if ($no_fail);
56 return 0 unless ($dbh);
58 my $x = $param{SQLHost};
59 my $hoststr = ($x) ? " to $x" : "";
61 &status("Closed DBI connection$hoststr.");
68 # Usage: &sqlQuote($str);
70 return $dbh->quote($_[0]);
74 # Usage: &sqlSelectMany($table, $select, [$where_href], [$other]);
75 # Return: $sth (Statement handle object)
77 my($table, $select, $where_href, $other) = @_;
78 my $query = "SELECT $select FROM $table";
81 if (!defined $select or $select =~ /^\s*$/) {
82 &WARN("sqlSelectMany: select == NULL.");
86 if (!defined $table or $table =~ /^\s*$/) {
87 &WARN("sqlSelectMany: table == NULL.");
91 my $where = ($where_href) ? &hashref2where($where_href) : "";
92 $query .= " WHERE $where" if ($where);
93 $query .= "$other" if $other;
95 if (!($sth = $dbh->prepare($query))) {
96 &ERROR("sqlSelectMany: prepare: $DBI::errstr");
101 if (!$sth->execute) {
102 &ERROR("sqlSelectMany: execute: '$query'");
110 # Usage: &sqlSelect($table, $select, [$where_href, [$other]);
111 # Return: scalar if one element, array if list of elements.
112 # Note: Suitable for one column returns, that is, one column in $select.
113 # Todo: Always return array?
115 my $sth = &sqlSelectMany(@_);
117 &WARN("sqlSelect failed.");
120 my @retval = $sth->fetchrow_array;
123 if (scalar @retval > 1) {
125 } elsif (scalar @retval == 1) {
133 # Usage: &sqlSelectColHash($table, $select, [$where_href], [$type]);
134 # Return: type = 1: $retval{ col2 }{ col1 } = 1;
135 # Return: no type: $retval{ col1 } = col2;
136 # Note: does not support $other, yet.
137 sub sqlSelectColHash {
138 my ($table, $select, $where_href, $type) = @_;
139 my $sth = &sqlSelectMany($table, $select, $where_href);
141 &WARN("sqlSelectColhash failed.");
146 if (defined $type and $type == 2) {
147 &DEBUG("dbgetcol: type 2!");
148 while (my @row = $sth->fetchrow_array) {
149 $retval{$row[0]} = join(':', $row[1..$#row]);
151 &DEBUG("dbgetcol: count => ".scalar(keys %retval) );
153 } elsif (defined $type and $type == 1) {
154 while (my @row = $sth->fetchrow_array) {
155 # reverse it to make it easier to count.
156 if (scalar @row == 2) {
157 $retval{$row[1]}{$row[0]} = 1;
158 } elsif (scalar @row == 3) {
159 $retval{$row[1]}{$row[0]} = 1;
161 # what to do if there's only one or more than 3?
165 while (my @row = $sth->fetchrow_array) {
166 $retval{$row[0]} = $row[1];
176 # Usage: &sqlSelectRowHash($table, $select, [$where_href]);
177 # Return: $hash{ col } = value;
178 # Note: useful for returning only one/first row of data.
179 sub sqlSelectRowHash {
180 my $sth = &sqlSelectMany(@_);
182 &WARN("sqlSelectRowHash failed.");
185 my $retval = $sth->fetchrow_hashref();
196 # End of SELECT functions.
200 # Usage: &sqlSet($table, $where_href, $data_href);
201 # Return: 1 for success, undef for failure.
203 my ($table, $where_href, $data_href) = @_;
205 if (!defined $table or $table =~ /^\s*$/) {
206 &WARN("sqlSet: table == NULL.");
210 if (!defined $data_href or ref($data_href) ne "HASH") {
211 &WARN("sqlSet: data_href == NULL.");
215 my $k = (keys %{ $where_href })[0];
216 my $result = &sqlSelect($table, $k, $where_href);
217 &DEBUG("result is not defined :(") if (!defined $result);
219 if (1 or defined $result) {
220 &sqlUpdate($table, $data_href, $where_href);
222 &DEBUG("doing insert...");
225 my %hash = %{ $where_href };
226 # add data_href values...
227 foreach (keys %{ $data_href }) {
228 $hash{ $_ } = ${ $data_href }{$_};
232 &sqlInsert($table, $data_href);
239 # Usage: &sqlUpdate($table, $data_href, $where_href);
241 my ($table, $data_href, $where_href) = @_;
243 if (!defined $data_href or ref($data_href) ne "HASH") {
244 &WARN("sqlSet: data_href == NULL.");
248 my $where = &hashref2where($where_href) if ($where_href);
249 my $update = &hashref2update($data_href) if ($data_href);
251 &sqlRaw("Update", "UPDATE $table SET $update WHERE $where");
257 # Usage: &sqlInsert($table, $data_href, $other);
259 my ($table, $data_href, $other) = @_;
260 # note: if $other == 1, add "DELAYED" to function instead.
262 if (!defined $data_href or ref($data_href) ne "HASH") {
263 &WARN("sqlInsert: data_href == NULL.");
267 my ($k_aref, $v_aref) = &hashref2array($data_href);
268 my @k = @{ $k_aref };
269 my @v = @{ $v_aref };
272 &WARN("sqlInsert: keys or vals is NULL.");
276 &sqlRaw("Insert($table)", sprintf(
277 "INSERT %s INTO %s (%s) VALUES (%s)",
278 ($other || ""), $table, join(',',@k), join(',',@v)
285 # Usage: &sqlReplace($table, $data_href);
287 my ($table, $data_href) = @_;
289 if (!defined $data_href or ref($data_href) ne "HASH") {
290 &WARN("sqlReplace: data_href == NULL.");
294 my ($k_aref, $v_aref) = &hashref2array($data_href);
295 my @k = @{ $k_aref };
296 my @v = @{ $v_aref };
299 &WARN("sqlReplace: keys or vals is NULL.");
303 &sqlRaw("Replace($table)", sprintf(
304 "REPLACE INTO %s (%s) VALUES (%s)",
305 $table, join(',',@k), join(',',@v)
312 # Usage: &sqlDelete($table, $where_href);
314 my ($table, $where_href) = @_;
316 if (!defined $where_href or ref($where_href) ne "HASH") {
317 &WARN("sqlDelete: where_href == NULL.");
321 my $where = &hashref2where($where_href);
323 &sqlRaw("Delete", "DELETE FROM $table WHERE $where");
329 # Usage: &sqlRaw($prefix, $query);
330 # Return: 1 for success, 0 for failure.
332 my ($prefix, $query) = @_;
335 if (!defined $query or $query =~ /^\s*$/) {
336 &WARN("sqlRaw: query == NULL.");
340 if (!($sth = $dbh->prepare($query))) {
341 &ERROR("Raw($prefix): !prepare => '$query'");
346 if (!$sth->execute) {
347 &ERROR("Raw($prefix): !execute => '$query'");
358 # Usage: &sqlRawReturn($query);
365 if (!defined $query or $query =~ /^\s*$/) {
366 &WARN("sqlRawReturn: query == NULL.");
370 if (!($sth = $dbh->prepare($query))) {
371 &ERROR("RawReturn: !prepare => '$query'");
376 if (!$sth->execute) {
377 &ERROR("RawReturn: !execute => '$query'");
383 while (my @row = $sth->fetchrow_array) {
384 push(@retval, $row[0]);
392 ####################################################################
393 ##### Misc DBI stuff...
399 if (!defined $href) {
400 &WARN("hashref2where: href == NULL.");
404 if (ref($href) ne "HASH") {
405 &WARN("hashref2where: href is not HASH ref (href => $href)");
409 my %hash = %{ $href };
410 foreach (keys %hash) {
413 if (s/^-//) { # as is.
415 delete $hash{'-'.$_};
417 $hash{$_} = &sqlQuote($v);
421 return join(' AND ', map { $_."=".$hash{$_} } keys %hash );
427 if (ref($href) ne "HASH") {
428 &WARN("hashref2update: href is not HASH ref.");
433 foreach (keys %{ $href }) {
435 my $v = ${ $href }{$_};
437 # is there a better way to do this?
438 if ($k =~ s/^-//) { # as is.
447 return join(', ', map { $_."=".$hash{$_} } sort keys %hash);
453 if (ref($href) ne "HASH") {
454 &WARN("hashref2update: href is not HASH ref.");
459 foreach (keys %{ $href }) {
461 my $v = ${ $href }{$_};
463 # is there a better way to do this?
464 if ($k =~ s/^-//) { # as is.
478 # Usage: &countKeys($table, [$col]);
480 my ($table, $col) = @_;
482 &DEBUG("&countKeys($table, $col);");
484 return (&sqlRawReturn("SELECT count($col) FROM $table"))[0];
488 # Usage: &sumKey($table, $col);
490 my ($table, $col) = @_;
492 return (&sqlRawReturn("SELECT sum($col) FROM $table"))[0];
496 # Usage: &randKey($table, $select);
498 my ($table, $select) = @_;
499 my $rand = int(rand(&countKeys($table) - 1));
500 my $query = "SELECT $select FROM $table LIMIT $rand,1";
501 if ($param{DBType} =~ /^pg/i) {
502 $query =~ s/$rand,1/1,$rand/;
505 my $sth = $dbh->prepare($query);
507 &WARN("randKey($query)") unless $sth->execute;
508 my @retval = $sth->fetchrow_array;
515 # Usage: &deleteTable($table);
517 &sqlRaw("deleteTable($_[0])", "DELETE FROM $_[0]");
521 # Usage: &searchTable($table, $select, $key, $str);
522 # Note: searchTable does dbQuote.
524 my($table, $select, $key, $str) = @_;
528 # allow two types of wildcards.
529 if ($str =~ /^\^(.*)\$$/) {
530 &DEBUG("searchTable: should use dbGet(), heh.");
533 $str .= "%" if ($str =~ s/^\^//);
534 $str = "%".$str if ($str =~ s/\$$//);
535 $str = "%".$str."%" if ($str eq $origStr); # el-cheapo fix.
539 $str =~ s/\?/_/g; # '.' should be supported, too.
543 my $query = "SELECT $select FROM $table WHERE $key LIKE ".
545 my $sth = $dbh->prepare($query);
548 if (!$sth->execute) {
549 &WARN("Search($query)");
554 while (my @row = $sth->fetchrow_array) {
555 push(@results, $row[0]);
564 my(@path) = ($bot_data_dir, ".","..","../..");
569 my $file = "$_/setup/$table.sql";
570 &DEBUG("dbCT: table => '$table', file => '$file'");
571 next unless ( -f $file );
573 &DEBUG("dbCT: found!!!");
588 &sqlRaw("dbcreateTable($table)", $data);
594 my $database_exists = 0;
597 if ($param{DBType} =~ /^mysql$/i) {
598 my $sql = "SHOW DATABASES";
599 foreach ( &sqlRawReturn($sql) ) {
600 $database_exists++ if ($_ eq $param{'DBName'});
603 unless ($database_exists) {
604 &status("Creating database $param{DBName}...");
605 my $query = "CREATE DATABASE $param{DBName}";
606 &sqlRaw("create(db $param{DBName})", $query);
609 # retrieve a list of db's from the server.
610 foreach ($dbh->func('_ListTables')) {
614 } elsif ($param{DBType} =~ /^SQLite$/i) {
616 # retrieve a list of db's from the server.
617 foreach ( &sqlRawReturn("SELECT name FROM sqlite_master WHERE type='table'") ) {
622 if (!scalar keys %db) {
623 &status("Creating database $param{'DBName'}...");
624 my $query = "CREATE DATABASE $param{'DBName'}";
625 &sqlRaw("create(db $param{'DBName'})", $query);
629 foreach ( qw(factoids freshmeat rootwarn seen stats botmail) ) {
630 next if (exists $db{$_});
631 &status("checkTables: creating new table $_...");