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ahitrov@rambler.ru |
package SQL::Common; |
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use base qw(Exporter); |
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use strict; |
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use Utils; |
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use Contenido::DateTime; |
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use Data::Dumper; |
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our @EXPORT = qw(&NIL); |
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sub NIL { |
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return '___NEXT___'; |
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} |
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my %_TEXT_CONDITIONS = ( |
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'!=' => 1, |
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'<>' => 1, |
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'NOT' => 1, |
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'LIKE' => 1, |
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'ILIKE' => 1, |
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'NOT LIKE' => 1, |
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'NOT ILIKE' => 1, |
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'~' => 1, |
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); |
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my %_CONDITIONS = ( |
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'NOT' => 1, |
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'!=' => 1, |
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'<>' => 1, |
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'<' => 1, |
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'>' => 1, |
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'>=' => 1, |
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'<=' => 1, |
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); |
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my %_DATE_CONDITIONS = ( |
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'!=' => 1, |
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'<>' => 1, |
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'<' => 1, |
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'>' => 1, |
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'>=' => 1, |
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'<=' => 1, |
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); |
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sub _generic_int_filter { |
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my ($field,$value,$negation)=@_; |
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my $mode = $negation ? 'NOT IN':'IN'; |
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#undef <=> NULL |
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if ( !defined($value) ) { |
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$mode = $negation ? 'IS NOT' : 'IS'; |
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return "$field $mode NULL", []; |
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} elsif ( (ref($value) eq 'ARRAY') and @$value ) { |
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my $values_string = '?, 'x(scalar (@$value)-1).'?'; |
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return " ($field $mode ($values_string)) ", [@$value]; |
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} elsif (ref($value) eq 'ARRAY') { |
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# skip empty array |
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return ($negation ? ' TRUE ' : ' FALSE '), []; |
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} elsif ( $value eq 'positive' || $value eq 'negative' || $value eq 'natural' ) { |
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$mode = $value eq 'positive' ? '>' : $value eq 'negative' ? '<' : '>='; |
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return "$field $mode 0", []; |
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} elsif ( $value =~ /^[0-9 ,]+$/ ) { |
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my @values = split(/\s*,\s*/, $value); |
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my $values_string = '?, 'x(scalar (@values)-1).'?'; |
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return " ($field $mode ($values_string)) ", \@values; |
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} else { |
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my $mason_comp = ref($HTML::Mason::Commands::m) ? $HTML::Mason::Commands::m->current_comp() : undef; |
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my $mason_file = ref($mason_comp) ? $mason_comp->path : undef; |
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my ($package, $filename, $line) = caller; |
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warn "WARNING: $$: Неверно задан формат integer фильтра для $field ('$value'). Это может быть либо число, либо ряд чисел через запятую либо ссылка на массив чисел. called from '$package/$filename/$line' ".($mason_file ? "called from $mason_file" : '')."\n"; |
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return ' FALSE ', []; |
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} |
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} |
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sub _generic_composite_filter { |
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my ($field, $condition, $value, $mode ) = @_; |
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unless ( $condition ) { |
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warn "Contenido Warning (_generic_composite_filter): Неверно задан формат!\n"; |
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return ' FALSE '; |
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} |
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$condition = uc($condition) if $condition =~ /^[\w\s]+$/; |
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if ( $value eq NIL() ) { |
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return ' TRUE '; |
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} elsif ( defined($value) && !ref($value) ) { |
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if ( ( $mode eq 'text' && !$_TEXT_CONDITIONS{$condition} ) || ( $mode ne 'text' && !$_CONDITIONS{$condition} ) ) { |
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warn "Contenido Warning (_generic_composite_filter): Неверно задан формат неравенства, недопустимое условие \"$condition\"!\n"; |
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return ' FALSE '; |
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} |
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return "$field $condition ?", $value; |
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} elsif ( ref($value) eq 'ARRAY' && scalar(@{ $value }) ) { |
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my $in = 'IN ('; |
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my $i = 0; |
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unless ( $condition eq 'NOT' ) { |
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warn "Contenido Warning (_generic_composite_filter): Неверно задан формат, недопустимое условие \"$condition\"!\n"; |
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return ' FALSE '; |
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} |
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foreach my $v ( @{ $value } ) { |
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$in .= '?'; |
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$in .= ',' if $#{ $value } != $i; |
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$i++; |
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} |
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$in .= ')'; |
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return "$field $condition $in", $value; |
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} else { |
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warn "Contenido Warning (_generic_composite_filter): Неверно задано значение, ожидается скаляр или ссылка на массив!\n "; |
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return ' FALSE '; |
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} |
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} |
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sub _composite_date_filter { |
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my ($field, $condition, $value ) = @_; |
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unless ( $condition ) { |
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warn "Contenido Warning (_composite_date_filter): Неверно задан формат!\n"; |
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return ' FALSE '; |
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} |
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if ( $value eq NIL() ) { |
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return ' TRUE '; |
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} elsif ( defined($value) && !ref($value) ) { |
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unless ( $_DATE_CONDITIONS{$condition} ) { |
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warn "Contenido Warning (_composite_date_filter): Неверно задан формат неравенства, недопустимое условие \"$condition\"!\n"; |
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return ' FALSE '; |
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} |
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if ( $value =~ /^\d+$/ ) { |
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my $date = Contenido::DateTime->new(epoch => $value)->strftime('%Y-%m-%d %H:%M:%S'); |
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return " ($field $condition ?::TIMESTAMP) ", $date; |
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} elsif ( $value =~ /^\d{4}-\d{2}-\d{2}$/ || $value =~ /^\d{4}-\d{2}-\d{2}\s+\d{2}:\d{2}(?:\:\d{2})?$/ ) { |
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return " ($field $condition ?::TIMESTAMP) ", $value; |
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} else { |
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warn "Contenido Warning (_composite_date_filter): Неверно задано значение! Правильный формат строка \"YYYY-MM-DD[ HH24:MI[:SS]]\" или дата в формате unixtime\n"; |
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return ' FALSE '; |
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} |
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} else { |
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warn "Contenido Warning (_composite_date_filter): Неверно задано значение! Правильный формат строка \"YYYY-MM-DD[ HH24:MI[:SS]]\" или дата в формате unixtime\n"; |
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return ' FALSE '; |
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} |
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} |
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sub _generic_null_filter { |
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my ($field, $param )= @_; |
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$param = uc($param); |
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if ( $param ne 'NULL' && $param ne 'NOT NULL' ) { |
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warn "Contenido Warning (_generic_null_filter): Неверно задан значение, ожидается 'NULL' или 'NOT NULL'!\n"; |
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return ' FALSE '; |
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} |
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return "$field IS $param"; |
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} |
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sub _generic_date_filter { |
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my ($field, $param )= @_; |
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if ( defined($param) && !ref($param) ) { |
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if ( $param =~ /^\d+$/ ) { |
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my $date = Contenido::DateTime->new(epoch => $param)->strftime('%Y-%d-%m %H:%M'); |
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return " ($field >= ?::TIMESTAMP AND $field < ?::TIMESTAMP+'1 min'::INTERVAL) ", [$date, $date]; |
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} elsif ( $param =~ /^\d{4}-\d{2}-\d{2}$/ ) { |
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return " ($field >= ?::TIMESTAMP AND $field < ?::TIMESTAMP+'1 day'::INTERVAL) ", [$param, $param]; |
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} elsif ( $param =~ /^\d{4}-\d{2}-\d{2}\s+\d{2}:\d{2}(?:\:\d{2})?$/ ) { |
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return " ($field >= ?::TIMESTAMP AND $field < ?::TIMESTAMP+'1 min'::INTERVAL) ", [$param, $param]; |
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} else { |
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warn "Contenido Warning (_generic_date_filter): Неверно задано значение! Правильный формат строка \"YYYY-MM-DD[ HH24:MI[:SS]]\" или дата в формате unixtime\n"; |
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return ' FALSE '; |
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} |
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} elsif ( !defined($param) ) { |
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return "$field IS NULL"; |
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} else { |
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warn "Contenido Warning (_generic_date_filter): Неверно задано значение! Правильный формат строка \"YYYY-MM-DD[ HH24:MI[:SS]]\" или дата в формате unixtime\n"; |
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return ' FALSE '; |
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} |
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} |
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sub _generic_float_filter { |
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my ($field,$value,$negation)=@_; |
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my $mode = $negation ? 'NOT IN':'IN'; |
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#undef <=> NULL |
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if ( !defined($value) ) { |
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$mode = $negation ? 'IS NOT' : 'IS'; |
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return "$field $mode NULL", []; |
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} elsif (ref($value) eq 'ARRAY' and @$value) { |
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my $values_string = '?, 'x(scalar (@$value)-1).'?'; |
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return " ($field $mode ($values_string)) ", $value; |
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} elsif (ref($value) eq 'ARRAY') { |
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# skip empty array |
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return ($negation ? ' TRUE ' : ' FALSE '), []; |
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} else { |
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return " ($field $mode (?)) ", [$value]; |
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} |
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} |
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# raw flag for disable placeholders use... (need manual escaping before)... sometime need for partial indexes use with prepared statements |
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sub _generic_text_filter { |
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my ($field,$value,$negation,$raw)=@_; |
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my $mode = $negation ? 'NOT IN':'IN'; |
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#undef <=> NULL |
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if ( !defined($value) ) { |
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$mode = $negation ? 'IS NOT' : 'IS'; |
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return "$field $mode NULL", []; |
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} elsif (ref($value) eq 'ARRAY') { |
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if ($raw) { |
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my $values_string = "'".join ("','",@$value)."'"; |
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return " ($field $mode ($values_string)) ", []; |
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} else { |
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my $values_string = '?, 'x(scalar (@$value)-1).'?'; |
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return " ($field $mode ($values_string)) ", $value; |
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} |
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} else { |
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if ($raw) { |
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return " ($field $mode ('$value')) ", []; |
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} else { |
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return " ($field $mode (?)) ", [$value]; |
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} |
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} |
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} |
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sub _generic_name_filter { |
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my ($field,$value,$negation,$opts)=@_; |
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$opts ||= {}; |
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#like and ilike modes incompatible with [] in $opts{name} |
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if ($opts->{like}) { |
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my $mode = $negation ? "NOT" : ""; |
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return " $field $mode LIKE ? ", [$value]; |
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} elsif ($opts->{ilike}) { |
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my $mode = $negation ? "NOT" : ""; |
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return " $field $mode ILIKE ? ", [$value]; |
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} else { |
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return &SQL::Common::_generic_text_filter($field,$value,$negation,0); |
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} |
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} |
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sub _generic_intarray_filter { |
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my ($field, $value, $opts)=@_; |
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#undef <=> FALSE here!!!! |
| 237 |
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if (defined($value)) { |
| 238 |
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if (ref($value) ne 'ARRAY') { |
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if ($value =~ /^[\d ,]+$/) { |
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$value = [split(/\s*,\s*/, $value)]; |
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} else { |
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warn "Contenido Warning: В списке для _generic_int_array_filter есть нечисловые элементы ('$value'). Параметр игнорируется."; |
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return [' FALSE '], []; |
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} |
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} |
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if (@$value) { |
| 248 |
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my $op = (ref($opts) eq 'HASH' and ($opts->{intersect} or $opts->{contains})) ? '@>' : '&&'; |
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# old versions DBD::Pg is SO STUPID!!!! |
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# if ($DBD::Pg::VERSION<1.49) { |
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# my $value_string = '{'.join(',',@{$value}).'}'; |
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# return [" ($field $op ?) "], [$value_string]; |
| 253 |
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# } else { |
| 254 |
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# all versions before 2.0.0 also stupid |
| 255 |
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if ($DBD::Pg::VERSION=~/^1\./) { |
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my $ph_string = '?, 'x$#{$value}.'?'; |
| 257 |
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return [" ($field $op ARRAY[$ph_string]::integer[]) "], $value; |
| 258 |
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} else { |
| 259 |
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return [" ($field $op ?::integer[]) "], [$value]; |
| 260 |
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} |
| 261 |
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} else { |
| 262 |
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return [' FALSE '], []; |
| 263 |
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} |
| 264 |
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} else { |
| 265 |
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return [' FALSE '], []; |
| 266 |
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} |
| 267 |
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} |
| 268 |
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| 269 |
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sub _get_limit { |
| 270 |
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my %opts=@_; |
| 271 |
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if (exists($opts{limit})) { |
| 272 |
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return ' LIMIT 1000' unless defined $opts{limit}; |
| 273 |
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if ($opts{limit} !~ /\D/) { |
| 274 |
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return ' LIMIT '.$opts{limit}; |
| 275 |
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} else { |
| 276 |
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warn "Contenido Warning: Неверно заданы пределы выборки ($opts{limit})"; |
| 277 |
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return ' LIMIT 1000'; |
| 278 |
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} |
| 279 |
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} elsif ($opts{no_limit}) { |
| 280 |
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return undef; |
| 281 |
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} else { |
| 282 |
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return ' LIMIT 1000'; |
| 283 |
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} |
| 284 |
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} |
| 285 |
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| 286 |
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sub _get_offset { |
| 287 |
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my %opts=@_; |
| 288 |
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if ( exists($opts{offset})) { |
| 289 |
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return undef unless defined $opts{offset}; |
| 290 |
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if ($opts{offset} !~ /\D/) { |
| 291 |
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return ' OFFSET '.$opts{offset}; |
| 292 |
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} else { |
| 293 |
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my $mason_comp = ref($HTML::Mason::Commands::m) ? $HTML::Mason::Commands::m->current_comp() : undef; |
| 294 |
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my $mason_file = ref($mason_comp) ? $mason_comp->path : undef; |
| 295 |
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| 296 |
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warn "ERROR: $$ ".__PACKAGE__." ".scalar(localtime())." ".($mason_file ? "called from $mason_file" : '')." Для _get_offset неверно задан параметр offset: '$opts{offset}'\n"; |
| 297 |
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return undef; |
| 298 |
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} |
| 299 |
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} |
| 300 |
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} |
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1; |
