/[webpac]/trunk/index_DBI_cache.pm
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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revision 188 by dpavlin, Sat Nov 29 19:07:00 2003 UTC revision 226 by dpavlin, Wed Feb 11 08:33:51 2004 UTC
# Line 11  use strict qw(vars); Line 11  use strict qw(vars);
11  use vars qw($Count);  use vars qw($Count);
12  use HTML::Entities;  use HTML::Entities;
13  use URI::Escape;  use URI::Escape;
14    use locale;
15    
16  use DBI;  use DBI;
17    
# Line 43  sub new { Line 44  sub new {
44          my $user = shift || die "need dbi_user= in [global] section of configuration file";          my $user = shift || die "need dbi_user= in [global] section of configuration file";
45          my $passwd = shift || die "need dbi_passwd= in [global] section of configuration file";          my $passwd = shift || die "need dbi_passwd= in [global] section of configuration file";
46    
47            $self->{dbd} = $dbd;
48    
49          $self->{dbh} = DBI->connect("DBI:$dbd:$dsn",$user,$passwd) || die $DBI::errstr;          $self->{dbh} = DBI->connect("DBI:$dbd:$dsn",$user,$passwd) || die $DBI::errstr;
50          $Count++;          $Count++;
51    
52          $self->bench("connected to $dbd as $user");          $self->bench("connected to $dbd as $user");
53    
54            # force SQLite to support binary 0 in data (which shouldn't
55            # happend, but it did to me)
56            eval {
57                    no warnings 'all';
58                    $self->{dbh}->{sqlite_handle_binary_nulls} = 1;
59            };
60    
61          return $self;          return $self;
62  }  }
63    
# Line 63  sub delete_and_create { Line 73  sub delete_and_create {
73  # FIX: this is not a good way to check if table exists!  # FIX: this is not a good way to check if table exists!
74          if ($sth->execute() && $sth->fetchrow_hashref) {          if ($sth->execute() && $sth->fetchrow_hashref) {
75                  my $sql = "drop table $field";                  my $sql = "drop table $field";
76                  my $sth = $self->{dbh}->do($sql) || die "SQL: $sql ".$self->{dbh}->errstr();                  my $sth = $self->{dbh}->do($sql) || warn "SQL: $sql - ".$sth->errstr();
77          }          }
78          $sql = "create table $field (          $sql = "create table $field (
79                          item varchar(255),                          item varchar(255),
# Line 160  sub fetch { Line 170  sub fetch {
170                  } else {                  } else {
171                          # if no match is found when searching from beginning                          # if no match is found when searching from beginning
172                          # of word in index, try substring match anywhere                          # of word in index, try substring match anywhere
173                          $sql2 = "select ord from $field where upper(item) like '%'||upper(?)||'%'";                          $sql2 = "select ord from $field where upper(item) like '% '||upper(?)||'%'";
174                          $sth = $self->{dbh}->prepare($sql2) || die "sql2: $sql2; ".$self->{dbh}->errstr();                          $sth = $self->{dbh}->prepare($sql2) || die "sql2: $sql2; ".$self->{dbh}->errstr();
175                          $sth->execute($where) || die "sql2: $sql2; ".$self->{dbh}->errstr();                          $sth->execute($where) || die "sql2: $sql2; ".$self->{dbh}->errstr();
176                          if (my $row = $sth->fetchrow_hashref) {                          if (my $row = $sth->fetchrow_hashref) {
# Line 192  sub close { Line 202  sub close {
202    
203                  $self->{dbh}->begin_work || die $self->{dbh}->errstr();                  $self->{dbh}->begin_work || die $self->{dbh}->errstr();
204    
205                  $self->bench("Sorting ".$Table{$table}." items in $table");                  $self->bench("Sorting ".$Table{$table}." (with duplicates) items in $table");
206                  my @keys = sort keys %{$c_table->{$table}};                  my @keys = sort keys %{$c_table->{$table}};
207    
208                  $self->bench("Dumping data into $table");                  $self->bench("Dumping ".($#keys+1)." items into $table");
209                  my $sql = "insert into $table (ord,item,display,count) values (?,?,?,?)";                  my $sql = "insert into $table (ord,item,display,count) values (?,?,?,?)";
210                  my $sth = $self->{dbh}->prepare($sql) || die "sql: $sql; ".$self->{dbh}->errstr();                  my $sth = $self->{dbh}->prepare($sql) || die "sql: $sql; ".$self->{dbh}->errstr();
211    
# Line 210  sub close { Line 220  sub close {
220    
221                  $self->{dbh}->commit || die $self->{dbh}->errstr();                  $self->{dbh}->commit || die $self->{dbh}->errstr();
222          }          }
223    
224            if ($self->{dbd} =~ m/(Pg|SQLite)/) {
225                    $self->{dbh}->do(qq{vacuum}) || warn "vacumming failed. It shouldn't if you are using PostgreSQL or SQLite: ".$self->{dbh}->errstr();
226            }
227    
228          $self->bench("disconnecting from database");          $self->bench("disconnecting from database");
229    
230          $self->{dbh}->disconnect;          $self->{dbh}->disconnect;

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