126 lines
3.4 KiB
Perl
Executable File
126 lines
3.4 KiB
Perl
Executable File
#!/usr/bin/perl
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#
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use strict;
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require "$ENV{'LJHOME'}/cgi-bin/ljlib.pl";
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my $dbr = LJ::get_dbh("slave", "master");
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my $sth;
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sub magic_links
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{
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my $des = shift;
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$$des =~ s!<!<!g;
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$$des =~ s!>!>!g;
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$$des =~ s!\[dbtable\[(\w+?)\]\]!<dbtblref tblid="$1">$1</dbtblref>!g;
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}
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sub dump_xml
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{
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my $tables = shift;
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print "<?xml version=\"1.0\" ?>\n";
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print "<!DOCTYPE dbschema SYSTEM \"dbschema.dtd\">\n";
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print "<dbschema>\n";
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foreach my $table (sort keys %$tables)
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{
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print "<dbtbl id=\"$table\">\n";
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# table name
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print "<name>$table</name>\n";
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# description of table
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if ($tables->{$table}->{'des'}) {
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my $des = $tables->{$table}->{'des'};
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magic_links(\$des);
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print "<description>$des</description>\n";
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}
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# columns
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foreach my $col (@{$tables->{$table}->{'cols'}})
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{
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print "<dbcol id=\"$table.$col->{'name'}\" type=\"$col->{'type'}\" required=\"$col->{'required'}\" default=\"$col->{'default'}\">\n";
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print "<name>$col->{'name'}</name>\n";
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if ($col->{'des'}) {
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my $des = $col->{'des'};
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magic_links(\$des);
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print "<description>$des</description>\n";
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}
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print "</dbcol>\n";
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}
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# indexes
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foreach my $indexname (sort keys %{$tables->{$table}->{'index'}})
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{
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my $index = $tables->{$table}->{'index'}->{$indexname};
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print "<dbkey name=\"$indexname\" type=\"$index->{'type'}\" colids=\"", join(" ", @{$index->{'cols'}}), "\" />\n";
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}
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print "</dbtbl>\n";
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}
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print "</dbschema>\n";
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}
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my %table;
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my %coldes;
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foreach (`$ENV{'LJHOME'}/bin/upgrading/update-db.pl --listtables`) {
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chomp;
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$table{$_} = {};
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}
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$sth = $dbr->prepare("SELECT tablename, public_browsable, des FROM schematables");
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$sth->execute;
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while (my ($name, $public, $des) = $sth->fetchrow_array) {
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next unless (defined $table{$name});
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$table{$name} = { 'public' => $public, 'des' => $des };
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}
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$sth = $dbr->prepare("SELECT tablename, colname, des FROM schemacols");
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$sth->execute;
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while (my ($table, $col, $des) = $sth->fetchrow_array) {
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next unless (defined $table{$table});
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$coldes{$table}->{$col} = $des;
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}
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foreach my $table (sort keys %table)
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{
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$sth = $dbr->prepare("DESCRIBE $table");
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$sth->execute;
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while (my $r = $sth->fetchrow_hashref)
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{
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my $col = {};
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$col->{'name'} = $r->{'Field'};
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my $type = $r->{'Type'};
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$type =~ s/int\(\d+\)/int/g;
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if ($r->{'Extra'} eq "auto_increment") {
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$type .= " auto_increment";
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}
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$col->{'type'} = $type;
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$col->{'default'} = $r->{'Default'};
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$col->{'required'} = $r->{'Null'} eq "YES" ? "false" : "true";
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$col->{'des'} = $coldes{$table}->{$r->{'Field'}};
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push @{$table{$table}->{'cols'}}, $col;
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}
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$sth = $dbr->prepare("SHOW INDEX FROM $table");
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$sth->execute;
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while (my $r = $sth->fetchrow_hashref)
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{
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my $name = $r->{'Key_name'};
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my $type = $r->{'Non_unique'} ? "INDEX" : "UNIQUE";
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if ($name eq "PRIMARY") { $type = "PRIMARY"; }
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$table{$table}->{'index'}->{$name}->{'type'} = $type;
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push @{$table{$table}->{'index'}->{$name}->{'cols'}}, "$table.$r->{'Column_name'}";
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}
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}
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dump_xml(\%table);
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