Commit | Line | Data |
bbe638af |
1 | package SQL::Abstract::Clauses; |
2 | |
3 | use strict; |
4 | use warnings; |
ccb7f3d6 |
5 | use if $] < '5.010', 'MRO::Compat'; |
bbe638af |
6 | use mro 'c3'; |
7 | use base 'SQL::Abstract'; |
8 | |
1bcd361f |
9 | BEGIN { *puke = \&SQL::Abstract::puke } |
10 | |
bbe638af |
11 | sub new { |
12 | shift->next::method(@_)->register_defaults |
13 | } |
14 | |
15 | sub register_defaults { |
16 | my ($self) = @_; |
17 | $self->{clauses_of}{select} = [ qw(select from where order_by) ]; |
18 | $self->{expand}{select} = sub { shift->_expand_statement(@_) }; |
a01911a2 |
19 | $self->{render}{select} = sub { shift->_render_statement(@_) }; |
df0f5af9 |
20 | $self->{expand_clause}{"select.$_"} = "_expand_select_clause_$_" |
21 | for @{$self->{clauses_of}{select}}; |
46158aa8 |
22 | $self->{clauses_of}{update} = [ qw(target set where returning) ]; |
1bcd361f |
23 | $self->{expand}{update} = sub { shift->_expand_statement(@_) }; |
a01911a2 |
24 | $self->{render}{update} = sub { shift->_render_statement(@_) }; |
889fdd38 |
25 | $self->{expand_clause}{"update.$_"} = "_expand_update_clause_$_" |
26 | for @{$self->{clauses_of}{update}}; |
46158aa8 |
27 | $self->{expand_clause}{'update.update'} = '_expand_update_clause_target'; |
28 | $self->{render_clause}{'update.target'} = sub { |
fe8b493f |
29 | my ($self, undef, $target) = @_; |
e7f248c4 |
30 | $self->join_query_parts(' ', $self->format_keyword('update'), $target); |
46158aa8 |
31 | }; |
32 | $self->{clauses_of}{delete} = [ qw(target where returning) ]; |
77e8c03d |
33 | $self->{expand}{delete} = sub { shift->_expand_statement(@_) }; |
a01911a2 |
34 | $self->{render}{delete} = sub { shift->_render_statement(@_) }; |
44296b4e |
35 | $self->{expand_clause}{"delete.$_"} = "_expand_delete_clause_$_" |
36 | for @{$self->{clauses_of}{delete}}; |
46158aa8 |
37 | $self->{expand_clause}{"delete.from"} = '_expand_delete_clause_target'; |
38 | $self->{render_clause}{'delete.target'} = sub { |
fe8b493f |
39 | my ($self, undef, $from) = @_; |
e7f248c4 |
40 | $self->join_query_parts(' ', $self->format_keyword('delete from'), $from); |
46158aa8 |
41 | }; |
2b057b28 |
42 | $self->{clauses_of}{insert} = [ |
93253a11 |
43 | 'target', 'fields', 'from', 'returning' |
2b057b28 |
44 | ]; |
39544e0e |
45 | $self->{expand}{insert} = sub { shift->_expand_statement(@_) }; |
a01911a2 |
46 | $self->{render}{insert} = sub { shift->_render_statement(@_) }; |
ddbe2793 |
47 | $self->{expand_clause}{"insert.$_"} = "_expand_insert_clause_$_" |
48 | for @{$self->{clauses_of}{insert}}; |
46158aa8 |
49 | $self->{expand_clause}{'insert.into'} = '_expand_insert_clause_target'; |
ddbe2793 |
50 | $self->{expand_clause}{'insert.values'} = '_expand_insert_clause_from'; |
2b057b28 |
51 | $self->{render_clause}{'insert.fields'} = sub { |
7c532574 |
52 | return $_[0]->render_aqt($_[2]); |
2b057b28 |
53 | }; |
46158aa8 |
54 | $self->{render_clause}{'insert.target'} = sub { |
fe8b493f |
55 | my ($self, undef, $from) = @_; |
e7f248c4 |
56 | $self->join_query_parts(' ', $self->format_keyword('insert into'), $from); |
46158aa8 |
57 | }; |
93253a11 |
58 | $self->{render_clause}{'insert.from'} = sub { |
7c532574 |
59 | return $_[0]->render_aqt($_[2], 1); |
f8d50921 |
60 | }; |
01222ad2 |
61 | $self->{expand}{values} = '_expand_values'; |
62 | $self->{render}{values} = '_render_values'; |
7250aa13 |
63 | $self->{expand}{exists} = sub { |
64 | $_[0]->_expand_op(undef, [ exists => $_[2] ]); |
65 | }; |
38c5397d |
66 | $self->{render}{convert_where} = sub { |
67 | my $self = shift; |
68 | local $self->{convert_where} = $self->{convert}; |
7c532574 |
69 | $self->render_aqt($_[1]); |
38c5397d |
70 | }; |
bbe638af |
71 | return $self; |
72 | } |
73 | |
df0f5af9 |
74 | sub _expand_select_clause_select { |
fe8b493f |
75 | my ($self, undef, $select) = @_; |
df0f5af9 |
76 | +(select => $self->_expand_maybe_list_expr($select, -ident)); |
77 | } |
78 | |
79 | sub _expand_select_clause_from { |
fe8b493f |
80 | my ($self, undef, $from) = @_; |
df0f5af9 |
81 | +(from => $self->_expand_maybe_list_expr($from, -ident)); |
82 | } |
83 | |
84 | sub _expand_select_clause_where { |
fe8b493f |
85 | my ($self, undef, $where) = @_; |
38c5397d |
86 | my $exp = $self->expand_expr($where); |
e7f248c4 |
87 | +(where => ($self->{convert} ? +{ -convert_where => $exp } : $exp)); |
df0f5af9 |
88 | } |
89 | |
90 | sub _expand_select_clause_order_by { |
fe8b493f |
91 | my ($self, undef, $order_by) = @_; |
df0f5af9 |
92 | +(order_by => $self->_expand_order_by($order_by)); |
93 | } |
94 | |
46158aa8 |
95 | sub _expand_update_clause_target { |
fe8b493f |
96 | my ($self, undef, $target) = @_; |
e0eb8d26 |
97 | +(target => $self->_expand_maybe_list_expr($target, -ident)); |
889fdd38 |
98 | } |
99 | |
100 | sub _expand_update_clause_set { |
fe8b493f |
101 | return $_[2] if ref($_[2]) eq 'HASH' and ($_[2]->{-op}||[''])->[0] eq ','; |
102 | +(set => $_[0]->_expand_update_set_values($_[1], $_[2])); |
889fdd38 |
103 | } |
104 | |
105 | sub _expand_update_clause_where { |
fe8b493f |
106 | +(where => $_[0]->expand_expr($_[2])); |
889fdd38 |
107 | } |
108 | |
109 | sub _expand_update_clause_returning { |
fe8b493f |
110 | +(returning => $_[0]->_expand_maybe_list_expr($_[2], -ident)); |
889fdd38 |
111 | } |
112 | |
46158aa8 |
113 | sub _expand_delete_clause_target { |
fe8b493f |
114 | +(target => $_[0]->_expand_maybe_list_expr($_[2], -ident)); |
44296b4e |
115 | } |
116 | |
fe8b493f |
117 | sub _expand_delete_clause_where { +(where => $_[0]->expand_expr($_[2])); } |
44296b4e |
118 | |
119 | sub _expand_delete_clause_returning { |
fe8b493f |
120 | +(returning => $_[0]->_expand_maybe_list_expr($_[2], -ident)); |
44296b4e |
121 | } |
122 | |
bbe638af |
123 | sub _expand_statement { |
124 | my ($self, $type, $args) = @_; |
125 | my $ec = $self->{expand_clause}; |
f9f1fdcd |
126 | if ($args->{_}) { |
127 | $args = { %$args }; |
128 | $args->{$type} = delete $args->{_} |
129 | } |
27d61b67 |
130 | return +{ "-${type}" => +{ |
c79c67d7 |
131 | map { |
bbe638af |
132 | my $val = $args->{$_}; |
133 | if (defined($val) and my $exp = $ec->{"${type}.$_"}) { |
fe8b493f |
134 | if ((my (@exp) = $self->$exp($_ => $val)) == 1) { |
c79c67d7 |
135 | ($_ => $exp[0]) |
136 | } else { |
137 | @exp |
138 | } |
bbe638af |
139 | } else { |
93253a11 |
140 | ($_ => $self->expand_expr($val)) |
bbe638af |
141 | } |
c79c67d7 |
142 | } sort keys %$args |
27d61b67 |
143 | } }; |
bbe638af |
144 | } |
145 | |
146 | sub _render_statement { |
147 | my ($self, $type, $args) = @_; |
148 | my @parts; |
149 | foreach my $clause (@{$self->{clauses_of}{$type}}) { |
150 | next unless my $clause_expr = $args->{$clause}; |
7c532574 |
151 | my $part = do { |
2b057b28 |
152 | if (my $rdr = $self->{render_clause}{"${type}.${clause}"}) { |
fe8b493f |
153 | $self->$rdr($clause, $clause_expr); |
2b057b28 |
154 | } else { |
7c532574 |
155 | $self->join_query_parts(' ', |
156 | $self->format_keyword($clause), |
157 | $self->render_aqt($clause_expr, 1) |
158 | ); |
2b057b28 |
159 | } |
160 | }; |
7c532574 |
161 | push @parts, $part; |
bbe638af |
162 | } |
531d5231 |
163 | my $q = $self->join_query_parts(' ', @parts); |
164 | return $self->join_query_parts('', |
165 | (our $Render_Top_Level ? $q : ('(', $q, ')')) |
166 | ); |
01222ad2 |
167 | } |
168 | |
169 | sub render_aqt { |
170 | my ($self, $aqt, $top_level) = @_; |
171 | local our $Render_Top_Level = $top_level; |
172 | return $self->next::method($aqt); |
173 | } |
174 | |
175 | sub render_statement { |
176 | my ($self, $expr, $default_scalar_to) = @_; |
7c532574 |
177 | $self->render_aqt( |
01222ad2 |
178 | $self->expand_expr($expr, $default_scalar_to), 1 |
7c532574 |
179 | ); |
bbe638af |
180 | } |
181 | |
81b270e7 |
182 | sub select { |
183 | my ($self, @args) = @_; |
7958f5c6 |
184 | |
7c532574 |
185 | my $stmt = do { |
186 | if (ref(my $sel = $args[0]) eq 'HASH') { |
3f312d2e |
187 | $sel |
7c532574 |
188 | } else { |
189 | my %clauses; |
190 | @clauses{qw(from select where order_by)} = @args; |
7958f5c6 |
191 | |
7c532574 |
192 | # This oddity is to literalify since historically SQLA doesn't quote |
193 | # a single identifier argument, so we convert it into a literal |
8e6988ce |
194 | |
7c532574 |
195 | $clauses{select} = { -literal => [ $clauses{select}||'*' ] } |
196 | unless ref($clauses{select}); |
197 | \%clauses; |
198 | } |
199 | }; |
4ee74413 |
200 | |
7c532574 |
201 | my $rendered = $self->render_statement({ -select => $stmt }); |
202 | return wantarray ? @$rendered : $rendered->[0]; |
81b270e7 |
203 | } |
204 | |
1bcd361f |
205 | sub update { |
206 | my ($self, $table, $set, $where, $options) = @_; |
7958f5c6 |
207 | |
3f312d2e |
208 | my $stmt = do { |
209 | if (ref($table) eq 'HASH') { |
210 | $table |
211 | } else { |
212 | my %clauses; |
213 | @clauses{qw(target set where)} = ($table, $set, $where); |
214 | puke "Unsupported data type specified to \$sql->update" |
215 | unless ref($clauses{set}) eq 'HASH'; |
216 | @clauses{keys %$options} = values %$options; |
217 | \%clauses; |
218 | } |
219 | }; |
220 | my $rendered = $self->render_statement({ -update => $stmt }); |
221 | return wantarray ? @$rendered : $rendered->[0]; |
1bcd361f |
222 | } |
223 | |
77e8c03d |
224 | sub delete { |
225 | my ($self, $table, $where, $options) = @_; |
7958f5c6 |
226 | |
3f312d2e |
227 | my $stmt = do { |
228 | if (ref($table) eq 'HASH') { |
229 | $table; |
230 | } else { |
231 | my %clauses = (target => $table, where => $where, %{$options||{}}); |
232 | \%clauses; |
233 | } |
234 | }; |
235 | my $rendered = $self->render_statement({ -delete => $stmt }); |
236 | return wantarray ? @$rendered : $rendered->[0]; |
77e8c03d |
237 | } |
238 | |
39544e0e |
239 | sub insert { |
240 | my ($self, $table, $data, $options) = @_; |
7958f5c6 |
241 | |
3f312d2e |
242 | my $stmt = do { |
243 | if (ref($table) eq 'HASH') { |
244 | $table; |
245 | } else { |
246 | my %clauses = (target => $table, values => $data, %{$options||{}}); |
247 | \%clauses; |
248 | } |
249 | }; |
250 | my $rendered = $self->render_statement({ -insert => $stmt }); |
251 | return wantarray ? @$rendered : $rendered->[0]; |
39544e0e |
252 | } |
253 | |
46158aa8 |
254 | sub _expand_insert_clause_target { |
fe8b493f |
255 | +(target => $_[0]->_expand_maybe_list_expr($_[2], -ident)); |
46158aa8 |
256 | } |
257 | |
ddbe2793 |
258 | sub _expand_insert_clause_fields { |
259 | return +{ -row => [ |
260 | $_[0]->_expand_maybe_list_expr($_[2], -ident) |
261 | ] } if ref($_[2]) eq 'ARRAY'; |
262 | return $_[2]; # should maybe still expand somewhat? |
263 | } |
264 | |
265 | sub _expand_insert_clause_from { |
fe8b493f |
266 | my ($self, undef, $data) = @_; |
f8d50921 |
267 | if (ref($data) eq 'HASH' and (keys(%$data))[0] =~ /^-/) { |
268 | return $self->expand_expr($data); |
269 | } |
e5feec9f |
270 | return $data if ref($data) eq 'HASH' and $data->{-row}; |
f33d93b5 |
271 | my ($f_aqt, $v_aqt) = $self->_expand_insert_values($data); |
93253a11 |
272 | return (from => { -values => $v_aqt }, ($f_aqt ? (fields => $f_aqt) : ())); |
f33d93b5 |
273 | } |
274 | |
ddbe2793 |
275 | sub _expand_insert_clause_returning { |
276 | +(returning => $_[0]->_expand_maybe_list_expr($_[2], -ident)); |
277 | } |
278 | |
01222ad2 |
279 | sub _expand_values { |
280 | my ($self, undef, $values) = @_; |
281 | return { -values => [ |
282 | map +( |
283 | ref($_) eq 'HASH' |
284 | ? $self->expand_expr($_) |
285 | : +{ -row => [ map $self->expand_expr($_), @$_ ] } |
286 | ), ref($values) eq 'ARRAY' ? @$values : $values |
287 | ] }; |
288 | } |
289 | |
290 | sub _render_values { |
a01911a2 |
291 | my ($self, undef, $values) = @_; |
3f312d2e |
292 | my $inner = $self->join_query_parts(' ', |
293 | $self->format_keyword('values'), |
294 | $self->join_query_parts(', ', |
295 | ref($values) eq 'ARRAY' ? @$values : $values |
e7f248c4 |
296 | ), |
3f312d2e |
297 | ); |
e7f248c4 |
298 | return $self->join_query_parts('', |
299 | (our $Render_Top_Level ? $inner : ('(', $inner, ')')) |
01222ad2 |
300 | ); |
301 | } |
302 | |
34570093 |
303 | sub _ext_rw { |
304 | my ($self, $name, $key, $value) = @_; |
2b0b3d43 |
305 | return $self->{$name}{$key} unless @_ > 3; |
34570093 |
306 | $self->{$name}{$key} = $value; |
307 | return $self; |
308 | } |
309 | |
d390df44 |
310 | BEGIN { |
311 | foreach my $type (qw( |
2b0b3d43 |
312 | expand op_expand render op_render clause_expand clause_render |
d390df44 |
313 | )) { |
3f9899e5 |
314 | my $name = join '_', reverse split '_', $type; |
58ebc7fa |
315 | my $singular = "${type}er"; |
3f9899e5 |
316 | eval qq{sub ${singular} { shift->_ext_rw($name => \@_) }; 1 } |
317 | or die "Method builder failed for ${singular}: $@"; |
318 | eval qq{sub wrap_${singular} { |
319 | my (\$self, \$key, \$builder) = \@_; |
320 | my \$orig = \$self->_ext_rw('${name}', \$key); |
321 | \$self->_ext_rw( |
322 | '${name}', \$key, |
323 | \$builder->(\$orig, '${name}', \$key) |
324 | ); |
325 | }; 1 } or die "Method builder failed for wrap_${singular}: $@"; |
58ebc7fa |
326 | eval qq{sub ${singular}s { |
327 | my (\$self, \@args) = \@_; |
328 | while (my (\$this_key, \$this_value) = splice(\@args, 0, 2)) { |
3f9899e5 |
329 | \$self->{${name}}{\$this_key} = \$this_value; |
58ebc7fa |
330 | } |
331 | return \$self; |
332 | }; 1 } or die "Method builder failed for ${singular}s: $@"; |
3f9899e5 |
333 | eval qq{sub ${singular}_list { sort keys %{\$_[0]->{\$name}} }; 1; } |
334 | or die "Method builder failed for ${singular}_list: $@"; |
d390df44 |
335 | } |
336 | } |
34570093 |
337 | |
a17df223 |
338 | sub statement_list { sort keys %{$_[0]->{clauses_of}} } |
54a2a1e5 |
339 | |
34570093 |
340 | sub clauses_of { |
341 | my ($self, $of, @clauses) = @_; |
342 | unless (@clauses) { |
343 | return @{$self->{clauses_of}{$of}||[]}; |
344 | } |
ee706e89 |
345 | if (ref($clauses[0]) eq 'CODE') { |
346 | @clauses = $self->${\($clauses[0])}(@{$self->{clauses_of}{$of}||[]}); |
347 | } |
34570093 |
348 | $self->{clauses_of}{$of} = \@clauses; |
349 | return $self; |
350 | } |
351 | |
352 | sub clone { |
353 | my ($self) = @_; |
354 | bless( |
355 | { |
356 | (map +($_ => ( |
357 | ref($self->{$_}) eq 'HASH' |
358 | ? { %{$self->{$_}} } |
359 | : $self->{$_} |
360 | )), keys %$self), |
361 | }, |
362 | ref($self) |
363 | ); |
364 | } |
365 | |
bbe638af |
366 | 1; |