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 | $self->renderer(as => '_render_as'); |
58ebc7fa |
30 | |
b4546197 |
31 | splice(@{$self->{clauses_of}{update}}, 2, 0, 'from'); |
32 | splice(@{$self->{clauses_of}{delete}}, 1, 0, 'using'); |
58ebc7fa |
33 | $self->clause_expanders( |
34 | 'update.from' => '_expand_select_clause_from', |
35 | 'delete.using' => sub { |
36 | +(using => $_[0]->_expand_from_list(undef, $_[1])); |
37 | }, |
38 | 'insert.rowvalues' => sub { |
39 | +(from => $_[0]->expand_expr({ -values => $_[1] })); |
40 | }, |
41 | 'insert.select' => sub { |
42 | +(from => $_[0]->expand_expr({ -select => $_[1] })); |
43 | }, |
44 | ); |
b4546197 |
45 | return $self; |
1ff9018c |
46 | } |
47 | |
7741b7ad |
48 | sub _expand_select_clause_from { |
49 | my ($self, $from) = @_; |
50 | +(from => $self->_expand_from_list(undef, $from)); |
51 | } |
52 | |
53 | sub _expand_from_list { |
54 | my ($self, undef, $args) = @_; |
55 | if (ref($args) eq 'HASH') { |
56 | return { -from_list => [ $self->expand_expr($args) ] }; |
57 | } |
58 | my @list; |
86a6ebf4 |
59 | my @args = ref($args) eq 'ARRAY' ? @$args : ($args); |
7741b7ad |
60 | while (my $entry = shift @args) { |
b99e9a14 |
61 | if (!ref($entry) and $entry =~ /^-(.*)/) { |
62 | if ($1 eq 'as') { |
63 | $list[-1] = $self->expand_expr({ -as => [ |
64 | $list[-1], map +(ref($_) eq 'ARRAY' ? @$_ : $_), shift(@args) |
65 | ]}); |
66 | next; |
67 | } |
7741b7ad |
68 | $entry = { $entry => shift @args }; |
69 | } |
70 | my $aqt = $self->expand_expr($entry, -ident); |
71 | if ($aqt->{-join} and not $aqt->{-join}{from}) { |
72 | $aqt->{-join}{from} = pop @list; |
73 | } |
74 | push @list, $aqt; |
75 | } |
76 | return { -from_list => \@list }; |
77 | } |
78 | |
79 | sub _expand_join { |
80 | my ($self, undef, $args) = @_; |
81 | my %proto = ( |
82 | ref($args) eq 'HASH' |
83 | ? %$args |
84 | : (to => $args->[0], @{$args}[1..$#$args]) |
85 | ); |
b99e9a14 |
86 | if (my $as = delete $proto{as}) { |
87 | $proto{to} = { -as => [ $proto{to}, ref($as) eq 'ARRAY' ? @$as : $as ] }; |
88 | } |
e0eb8d26 |
89 | if (defined($proto{using}) and ref(my $using = $proto{using}) ne 'HASH') { |
90 | $proto{using} = { -row => [ |
91 | map [ $self->expand_expr($_, -ident) ], |
92 | ref($using) eq 'ARRAY' ? @$using: $using |
93 | ] }; |
94 | } |
7741b7ad |
95 | my %ret = map +($_ => $self->expand_expr($proto{$_}, -ident)), |
96 | sort keys %proto; |
97 | return +{ -join => \%ret }; |
98 | } |
99 | |
100 | sub _render_from_list { |
101 | my ($self, $list) = @_; |
102 | return $self->_join_parts(', ', map [ $self->render_aqt($_) ], @$list); |
103 | } |
104 | |
105 | sub _render_join { |
106 | my ($self, $args) = @_; |
107 | |
108 | my @parts = ( |
109 | [ $self->render_aqt($args->{from}) ], |
110 | [ $self->_sqlcase( |
111 | ($args->{type} |
112 | ? join(' ', split '_', $args->{type}).' ' |
113 | : '' |
114 | ) |
115 | .'join' |
116 | ) |
117 | ], |
4a2c263b |
118 | [ $self->render_aqt( |
e0eb8d26 |
119 | map +($_->{-ident} || $_->{-as} ? $_ : { -row => [ $_ ] }), $args->{to} |
4a2c263b |
120 | ) ], |
7741b7ad |
121 | ($args->{on} ? ( |
122 | [ $self->_sqlcase('on') ], |
123 | [ $self->render_aqt($args->{on}) ], |
124 | ) : ()), |
125 | ($args->{using} ? ( |
126 | [ $self->_sqlcase('using') ], |
127 | [ $self->render_aqt($args->{using}) ], |
128 | ) : ()), |
129 | ); |
130 | return $self->_join_parts(' ', @parts); |
131 | } |
132 | |
b99e9a14 |
133 | sub _expand_op_as { |
134 | my ($self, undef, $vv, $k) = @_; |
135 | my @as = map $self->expand_expr($_, -ident), |
136 | (defined($k) ? ($k) : ()), ref($vv) eq 'ARRAY' ? @$vv : $vv; |
137 | return { -as => \@as }; |
138 | } |
139 | |
140 | sub _render_as { |
141 | my ($self, $args) = @_; |
142 | my ($thing, $as, @cols) = @$args; |
143 | return $self->_join_parts( |
144 | ' ', |
01222ad2 |
145 | [ $self->render_aqt($thing) ], |
b99e9a14 |
146 | [ $self->_sqlcase('as') ], |
4a2c263b |
147 | (@cols |
148 | ? [ $self->_join_parts('', |
149 | [ $self->render_aqt($as) ], |
150 | [ '(' ], |
151 | [ $self->_join_parts( |
152 | ', ', |
153 | map [ $self->render_aqt($_) ], @cols |
154 | ) ], |
155 | [ ')' ], |
156 | ) ] |
157 | : [ $self->render_aqt($as) ] |
158 | ), |
b99e9a14 |
159 | ); |
160 | } |
161 | |
1ff9018c |
162 | 1; |