Commit | Line | Data |
1ff9018c |
1 | package SQL::Abstract::ExtraClauses; |
2 | |
3 | use strict; |
4 | use warnings; |
5 | use if $] < '5.010', 'MRO::Compat'; |
6 | use mro 'c3'; |
7 | use base qw(SQL::Abstract::Clauses); |
8 | |
9 | BEGIN { *puke = \&SQL::Abstract::puke } |
10 | |
b4546197 |
11 | sub register_defaults { |
12 | my $self = shift; |
13 | $self->next::method(@_); |
14 | $self->clauses_of( |
15 | select => $self->clauses_of('select'), qw(group_by having) |
16 | ); |
58ebc7fa |
17 | $self->clause_expanders( |
18 | 'select.group_by', sub { |
19 | $_[0]->_expand_maybe_list_expr($_[1], -ident) |
20 | }, |
21 | 'select.having', 'expand_expr', |
22 | ); |
a6227174 |
23 | foreach my $thing (qw(join from_list)) { |
24 | $self->expander($thing => "_expand_${thing}") |
25 | ->renderer($thing => "_render_${thing}") |
26 | } |
555ad787 |
27 | $self->op_expander(as => '_expand_op_as'); |
28 | $self->expander(as => '_expand_op_as'); |
29 | $self->renderer(as => '_render_as'); |
58ebc7fa |
30 | |
ee706e89 |
31 | $self->clauses_of(update => sub { |
32 | my ($self, @clauses) = @_; |
33 | splice(@clauses, 2, 0, 'from'); |
34 | @clauses; |
35 | }); |
36 | |
37 | $self->clauses_of(delete => sub { |
38 | my ($self, @clauses) = @_; |
39 | splice(@clauses, 1, 0, 'using'); |
40 | @clauses; |
41 | }); |
42 | |
58ebc7fa |
43 | $self->clause_expanders( |
44 | 'update.from' => '_expand_select_clause_from', |
45 | 'delete.using' => sub { |
46 | +(using => $_[0]->_expand_from_list(undef, $_[1])); |
47 | }, |
48 | 'insert.rowvalues' => sub { |
49 | +(from => $_[0]->expand_expr({ -values => $_[1] })); |
50 | }, |
51 | 'insert.select' => sub { |
52 | +(from => $_[0]->expand_expr({ -select => $_[1] })); |
53 | }, |
54 | ); |
b4546197 |
55 | return $self; |
1ff9018c |
56 | } |
57 | |
7741b7ad |
58 | sub _expand_select_clause_from { |
59 | my ($self, $from) = @_; |
60 | +(from => $self->_expand_from_list(undef, $from)); |
61 | } |
62 | |
63 | sub _expand_from_list { |
64 | my ($self, undef, $args) = @_; |
65 | if (ref($args) eq 'HASH') { |
66 | return { -from_list => [ $self->expand_expr($args) ] }; |
67 | } |
68 | my @list; |
86a6ebf4 |
69 | my @args = ref($args) eq 'ARRAY' ? @$args : ($args); |
7741b7ad |
70 | while (my $entry = shift @args) { |
b99e9a14 |
71 | if (!ref($entry) and $entry =~ /^-(.*)/) { |
72 | if ($1 eq 'as') { |
73 | $list[-1] = $self->expand_expr({ -as => [ |
74 | $list[-1], map +(ref($_) eq 'ARRAY' ? @$_ : $_), shift(@args) |
75 | ]}); |
76 | next; |
77 | } |
7741b7ad |
78 | $entry = { $entry => shift @args }; |
79 | } |
80 | my $aqt = $self->expand_expr($entry, -ident); |
81 | if ($aqt->{-join} and not $aqt->{-join}{from}) { |
82 | $aqt->{-join}{from} = pop @list; |
83 | } |
84 | push @list, $aqt; |
85 | } |
86 | return { -from_list => \@list }; |
87 | } |
88 | |
89 | sub _expand_join { |
90 | my ($self, undef, $args) = @_; |
91 | my %proto = ( |
92 | ref($args) eq 'HASH' |
93 | ? %$args |
94 | : (to => $args->[0], @{$args}[1..$#$args]) |
95 | ); |
b99e9a14 |
96 | if (my $as = delete $proto{as}) { |
97 | $proto{to} = { -as => [ $proto{to}, ref($as) eq 'ARRAY' ? @$as : $as ] }; |
98 | } |
e0eb8d26 |
99 | if (defined($proto{using}) and ref(my $using = $proto{using}) ne 'HASH') { |
100 | $proto{using} = { -row => [ |
101 | map [ $self->expand_expr($_, -ident) ], |
102 | ref($using) eq 'ARRAY' ? @$using: $using |
103 | ] }; |
104 | } |
7741b7ad |
105 | my %ret = map +($_ => $self->expand_expr($proto{$_}, -ident)), |
106 | sort keys %proto; |
107 | return +{ -join => \%ret }; |
108 | } |
109 | |
110 | sub _render_from_list { |
111 | my ($self, $list) = @_; |
112 | return $self->_join_parts(', ', map [ $self->render_aqt($_) ], @$list); |
113 | } |
114 | |
115 | sub _render_join { |
116 | my ($self, $args) = @_; |
117 | |
118 | my @parts = ( |
119 | [ $self->render_aqt($args->{from}) ], |
120 | [ $self->_sqlcase( |
121 | ($args->{type} |
122 | ? join(' ', split '_', $args->{type}).' ' |
123 | : '' |
124 | ) |
125 | .'join' |
126 | ) |
127 | ], |
4a2c263b |
128 | [ $self->render_aqt( |
e0eb8d26 |
129 | map +($_->{-ident} || $_->{-as} ? $_ : { -row => [ $_ ] }), $args->{to} |
4a2c263b |
130 | ) ], |
7741b7ad |
131 | ($args->{on} ? ( |
132 | [ $self->_sqlcase('on') ], |
133 | [ $self->render_aqt($args->{on}) ], |
134 | ) : ()), |
135 | ($args->{using} ? ( |
136 | [ $self->_sqlcase('using') ], |
137 | [ $self->render_aqt($args->{using}) ], |
138 | ) : ()), |
139 | ); |
140 | return $self->_join_parts(' ', @parts); |
141 | } |
142 | |
b99e9a14 |
143 | sub _expand_op_as { |
144 | my ($self, undef, $vv, $k) = @_; |
145 | my @as = map $self->expand_expr($_, -ident), |
146 | (defined($k) ? ($k) : ()), ref($vv) eq 'ARRAY' ? @$vv : $vv; |
147 | return { -as => \@as }; |
148 | } |
149 | |
150 | sub _render_as { |
151 | my ($self, $args) = @_; |
152 | my ($thing, $as, @cols) = @$args; |
153 | return $self->_join_parts( |
154 | ' ', |
01222ad2 |
155 | [ $self->render_aqt($thing) ], |
b99e9a14 |
156 | [ $self->_sqlcase('as') ], |
4a2c263b |
157 | (@cols |
158 | ? [ $self->_join_parts('', |
159 | [ $self->render_aqt($as) ], |
160 | [ '(' ], |
161 | [ $self->_join_parts( |
162 | ', ', |
163 | map [ $self->render_aqt($_) ], @cols |
164 | ) ], |
165 | [ ')' ], |
166 | ) ] |
167 | : [ $self->render_aqt($as) ] |
168 | ), |
b99e9a14 |
169 | ); |
170 | } |
171 | |
1ff9018c |
172 | 1; |