1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
|
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
#
# This Source Code Form is "Incompatible With Secondary Licenses", as
# defined by the Mozilla Public License, v. 2.0.
package Bugzilla::Search::Clause;
use 5.10.1;
use strict;
use warnings;
use Bugzilla::Error;
use Bugzilla::Search::Condition qw(condition);
use Bugzilla::Util qw(trick_taint);
sub new {
my ($class, $joiner) = @_;
if ($joiner and $joiner ne 'OR' and $joiner ne 'AND') {
ThrowCodeError('search_invalid_joiner', { joiner => $joiner });
}
# This will go into SQL directly so needs to be untainted.
trick_taint($joiner) if $joiner;
bless { joiner => $joiner || 'AND' }, $class;
}
sub children {
my ($self) = @_;
$self->{children} ||= [];
return $self->{children};
}
sub update_search_args {
my ($self, $search_args) = @_;
# abstract
}
sub joiner { return $_[0]->{joiner} }
sub has_translated_conditions {
my ($self) = @_;
my $children = $self->children;
return 1 if grep { $_->isa('Bugzilla::Search::Condition')
&& $_->translated } @$children;
foreach my $child (@$children) {
next if $child->isa('Bugzilla::Search::Condition');
return 1 if $child->has_translated_conditions;
}
return 0;
}
sub add {
my $self = shift;
my $children = $self->children;
if (@_ == 3) {
push(@$children, condition(@_));
return;
}
my ($child) = @_;
return if !defined $child;
$child->isa(__PACKAGE__) || $child->isa('Bugzilla::Search::Condition')
|| die 'child not the right type: ' . $child;
push(@{ $self->children }, $child);
}
sub negate {
my ($self, $value) = @_;
if (@_ == 2) {
$self->{negate} = $value ? 1 : 0;
}
return $self->{negate};
}
sub walk_conditions {
my ($self, $callback) = @_;
foreach my $child (@{ $self->children }) {
if ($child->isa('Bugzilla::Search::Condition')) {
$callback->($self, $child);
}
else {
$child->walk_conditions($callback);
}
}
}
sub as_string {
my ($self) = @_;
if (!$self->{sql}) {
my @strings;
foreach my $child (@{ $self->children }) {
next if $child->isa(__PACKAGE__) && !$child->has_translated_conditions;
next if $child->isa('Bugzilla::Search::Condition')
&& !$child->translated;
my $string = $child->as_string;
next unless $string;
if ($self->joiner eq 'AND') {
$string = "( $string )" if $string =~ /OR/;
}
else {
$string = "( $string )" if $string =~ /AND/;
}
push(@strings, $string);
}
my $sql = join(' ' . $self->joiner . ' ', @strings);
$sql = "NOT( $sql )" if $sql && $self->negate;
$self->{sql} = $sql;
}
return $self->{sql};
}
# Search.pm converts URL parameters to Clause objects. This helps do the
# reverse.
sub as_params {
my ($self) = @_;
my @params;
foreach my $child (@{ $self->children }) {
if ($child->isa(__PACKAGE__)) {
my %open_paren = (f => 'OP', n => scalar $child->negate,
j => $child->joiner);
push(@params, \%open_paren);
push(@params, $child->as_params);
my %close_paren = (f => 'CP');
push(@params, \%close_paren);
}
else {
push(@params, $child->as_params);
}
}
return @params;
}
1;
=head1 B<Methods in need of POD>
=over
=item has_translated_conditions
=item as_string
=item add
=item children
=item negate
=item update_search_args
=item walk_conditions
=item joiner
=item as_params
=back
|
