X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=index_DBI_filter.pm;h=fadeea9bab8ed33e35c24601e544460ff72585e3;hb=59ace2b4b24a63980678c794091a17f6acfb64cb;hp=5ac32085b1dae7959e6009bf24c54a33e480fe1f;hpb=815b43e56f6d7ddd7d1c2876c86226c6c2b6b369;p=webpac diff --git a/index_DBI_filter.pm b/index_DBI_filter.pm index 5ac3208..fadeea9 100644 --- a/index_DBI_filter.pm +++ b/index_DBI_filter.pm @@ -117,24 +117,52 @@ sub count { my $field = shift; my $where = shift; - my $sql = "select count(*) from index where name = ? and upper(item) like upper(?)||'%'"; + my $filter = shift; + + my $tables_sql = 'index'; + my $where_sql = ''; + my @sql_args = ( $field, $where ); + + if ($filter) { + $tables_sql .= ",filters"; + $where_sql .= " + and index.ord = filters.ord + and filter = ? + "; + push @sql_args, $filter; + } + + my $sql = qq{ + select count(*) + from $tables_sql + where name = ? and upper(item) like upper(?)||'%' + $where_sql + }; - my $sth = $self->{dbh}->prepare($sql) || die $self->{dbh}->errstr(); - $sth->execute($field,$where) || die "sql: $sql; ".$self->{dbh}->errstr(); + my $sth = $self->{dbh}->prepare($sql) || confess $self->{dbh}->errstr(); + $sth->execute(@sql_args) || confess "sql: $sql; ".$self->{dbh}->errstr(); my ($total) = $sth->fetchrow_array(); # no results, count all if (! $total) { - my $sql = "select count(*) from index wheere name = ?"; - - my $sth = $self->{dbh}->prepare($sql) || die $self->{dbh}->errstr(); - $sth->execute($field) || die "sql: $sql; ".$self->{dbh}->errstr(); + my $sql = qq{ + select count(*) + from $tables_sql + where index.name = ? + $where_sql + }; + + @sql_args = ( $field ); + push @sql_args, $filter if ($filter); + + my $sth = $self->{dbh}->prepare($sql) || confess $self->{dbh}->errstr(); + $sth->execute(@sql_args) || confess "sql: $sql; ".$self->{dbh}->errstr(); $total = $sth->fetchrow_array(); } - return $total || 1; + return $total || '0'; } @@ -146,40 +174,71 @@ sub fetch { my $offset = shift || 0; my $rows = shift || 10; + my $filter = shift; + my $from_ord = 0; - my @sql_args; + my $tables_sql = 'index'; + my $where_sql = ''; - my $sql = qq{ - select item,display,count - from index - where name = ? - and ord > ? - order by ord - limit ? offset ? - }; + my @sql_args = ( $field, $where ); - if ($where) { - my $sql2 = "select ord from index where name = ? and upper(item) like upper(?)||'%'"; - my $sth = $self->{dbh}->prepare($sql2) || die "sql2: $sql2; ".$self->{dbh}->errstr(); + if ($filter) { + $tables_sql .= ",filters"; + $where_sql .= " + and index.ord = filters.ord + and filter = ? + "; + push @sql_args, $filter; + } - $sth->execute($field, $where) || die "sql2: $sql2; ".$self->{dbh}->errstr(); + if ($where) { + my $sql2 = qq{ + select index.ord as ord + from $tables_sql + where name = ? and upper(item) like upper(?)||'%' + $where_sql + }; + my $sth = $self->{dbh}->prepare($sql2) || confess "sql2: $sql2; ".$self->{dbh}->errstr(); + + $sth->execute(@sql_args) || confess "sql2: $sql2; ".$self->{dbh}->errstr(); if (my $row = $sth->fetchrow_hashref) { $from_ord += $row->{ord} - 1; } else { # if no match is found when searching from beginning # of word in index, try substring match anywhere - $sql2 = "select ord from index where name = ? and upper(item) like '% '||upper(?)||'%'"; - $sth = $self->{dbh}->prepare($sql2) || die "sql2: $sql2; ".$self->{dbh}->errstr(); - $sth->execute($field, $where) || die "sql2: $sql2; ".$self->{dbh}->errstr(); + $sql2 = qq{ + select index.ord as ord + from $tables_sql + where name = ? and upper(item) like '% '||upper(?)||'%' + $where_sql + }; + + $sth = $self->{dbh}->prepare($sql2) || confess "sql2: $sql2; ".$self->{dbh}->errstr(); + $sth->execute(@sql_args) || confess "sql2: $sql2; ".$self->{dbh}->errstr(); + if (my $row = $sth->fetchrow_hashref) { $from_ord += $row->{ord} - 1; } } } - my $sth = $self->{dbh}->prepare($sql) || die "prepare: $sql; ".$self->{dbh}->errstr(); - $sth->execute($field,$from_ord,$rows,$offset) || die "execute: $sql; ".$self->{dbh}->errstr(); + @sql_args = ( $field, $from_ord ); + push @sql_args, $filter if ($filter); + push @sql_args, ( $rows, $offset ); + + my $sql = qq{ + select item,display,index.count as count + from $tables_sql + where name = ? + and index.ord > ? + $where_sql + order by index.ord + limit ? offset ? + }; + + my $sth = $self->{dbh}->prepare($sql) || confess "prepare: $sql; ".$self->{dbh}->errstr(); + $sth->execute(@sql_args) || confess "execute: $sql; ".$self->{dbh}->errstr(); my @arr; while (my $row = $sth->fetchrow_hashref) { $row->{item} = HTML::Entities::encode($row->{item},' <>&"'); @@ -196,7 +255,7 @@ sub close { return if (! $self->{dbh}); - $self->{dbh}->begin_work || die $self->{dbh}->errstr(); + $self->{dbh}->begin_work || confess $self->{dbh}->errstr(); $self->delete_and_create('index', qq{ create table index ( @@ -253,7 +312,7 @@ sub close { } - $self->{dbh}->commit || die $self->{dbh}->errstr(); + $self->{dbh}->commit || confess $self->{dbh}->errstr(); $self->bench("vacuuming");