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package Pg::SQL::PrettyPrinter::Node::DeleteStmt; |
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# UTF8 boilerplace, per http://stackoverflow.com/questions/6162484/why-does-modern-perl-avoid-utf-8-by-default/ |
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1580
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use v5.26; |
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use strict; |
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use warnings; |
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use warnings qw( FATAL utf8 ); |
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use utf8; |
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use open qw( :std :utf8 ); |
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use Unicode::Normalize qw( NFC ); |
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use Unicode::Collate; |
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use Encode qw( decode ); |
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if ( grep /\P{ASCII}/ => @ARGV ) { |
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@ARGV = map { decode( 'UTF-8', $_ ) } @ARGV; |
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} |
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# If there is __DATA__,then uncomment next line: |
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# binmode( DATA, ':encoding(UTF-8)' ); |
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# UTF8 boilerplace, per http://stackoverflow.com/questions/6162484/why-does-modern-perl-avoid-utf-8-by-default/ |
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# Useful common code |
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use autodie; |
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11174
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use Carp qw( carp croak confess cluck ); |
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use English qw( -no_match_vars ); |
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use Data::Dumper qw( Dumper ); |
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# give a full stack dump on any untrapped exceptions |
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local $SIG{ __DIE__ } = sub { |
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confess "Uncaught exception: @_" unless $^S; |
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}; |
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# now promote run-time warnings into stackdumped exceptions |
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# *unless* we're in an try block, in which |
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# case just generate a clucking stackdump instead |
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local $SIG{ __WARN__ } = sub { |
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if ( $^S ) { cluck "Trapped warning: @_" } |
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else { confess "Deadly warning: @_" } |
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}; |
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# Useful common code |
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use parent qw( Pg::SQL::PrettyPrinter::Node ); |
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45
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sub new { |
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my $class = shift; |
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my $self = $class->SUPER::new( @_ ); |
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bless $self, $class; |
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$self->objectify( |
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qw( returningList usingClause whereClause ), |
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[ 'withClause', 'ctes' ], |
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); |
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return $self; |
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} |
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sub as_text { |
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my $self = shift; |
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my @elements = (); |
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push @elements, 'DELETE FROM'; |
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push @elements, $self->relname; |
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100
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if ( exists $self->{ 'usingClause' } ) { |
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push @elements, 'USING'; |
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push @elements, join( ', ', map { $_->as_text } @{ $self->{ 'usingClause' } } ); |
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} |
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100
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if ( exists $self->{ 'whereClause' } ) { |
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push @elements, 'WHERE'; |
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push @elements, $self->{ 'whereClause' }->as_text; |
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} |
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if ( exists $self->{ 'returningList' } ) { |
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push @elements, 'RETURNING'; |
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push @elements, join( ', ', map { $_->as_text } @{ $self->{ 'returningList' } } ); |
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74
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} |
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my $prefix = ''; |
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100
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if ( exists $self->{ 'withClause' } ) { |
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$prefix = 'WITH '; |
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$prefix .= 'RECURSIVE ' if $self->{ 'withClause' }->{ 'recursive' }; |
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$prefix .= join( ', ', map { $_->as_text } @{ $self->{ 'withClause' }->{ 'ctes' } } ) . ' '; |
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80
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} |
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return $prefix . join( ' ', @elements ); |
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} |
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84
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sub pretty_print { |
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my $self = shift; |
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my @lines = (); |
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push @lines, 'DELETE FROM ' . $self->relname; |
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100
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if ( exists $self->{ 'usingClause' } ) { |
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push @lines, 'USING'; |
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push @lines, map { $self->increase_indent( $_->pretty_print ) . ',' } @{ $self->{ 'usingClause' } }; |
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92
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93
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# Remove unnecessary trailing , in last element |
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$lines[ -1 ] =~ s/,\z//; |
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} |
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97
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7
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100
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19
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if ( exists $self->{ 'whereClause' } ) { |
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push @lines, 'WHERE'; |
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push @lines, $self->increase_indent( $self->{ 'whereClause' }->pretty_print ); |
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} |
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102
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100
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23
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if ( exists $self->{ 'returningList' } ) { |
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push @lines, 'RETURNING '; |
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$lines[ -1 ] .= join( ', ', map { $_->pretty_print } @{ $self->{ 'returningList' } } ); |
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105
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} |
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107
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my $main_body = join( "\n", @lines ); |
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7
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100
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return $main_body unless exists $self->{ 'withClause' }; |
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110
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my @cte_def = (); |
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112
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push @cte_def, map { $_->pretty_print . ',' } @{ $self->{ 'withClause' }->{ 'ctes' } }; |
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113
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114
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# Remove unnecessary trailing , in last element |
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$cte_def[ -1 ] =~ s/,\z//; |
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if ( $self->{ 'withClause' }->{ 'recursive' } ) { |
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0
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$cte_def[ 0 ] = 'WITH RECURSIVE ' . $cte_def[ 0 ]; |
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} |
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else { |
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$cte_def[ 0 ] = 'WITH ' . $cte_def[ 0 ]; |
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} |
122
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123
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@lines = (); |
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push @lines, join( ' ', @cte_def ); |
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push @lines, $main_body; |
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return join( "\n", @lines ); |
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} |
128
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129
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sub relname { |
130
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14
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14
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my $self = shift; |
131
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14
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100
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40
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if ( !$self->{ '_relname' } ) { |
132
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7
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13
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my $R = $self->{ 'relation' }; |
133
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my @elements = map { $self->quote_ident( $R->{ $_ } ) } |
134
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7
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15
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grep { exists $R->{ $_ } } qw{ catalogname schemaname relname }; |
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135
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$self->{ '_relname' } = join( '.', @elements ); |
136
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100
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if ( $R->{ 'alias' }->{ 'aliasname' } ) { |
137
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1
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$self->{ '_relname' } .= ' AS ' . $self->quote_ident( $R->{ 'alias' }->{ 'aliasname' } ); |
138
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} |
139
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} |
140
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14
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42
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return $self->{ '_relname' }; |
141
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} |
142
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143
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1; |
144
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145
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# vim: set ft=perl: |