Commit | Line | Data |
5ee249f2 |
1 | package Catalyst::Controller; |
2 | |
0bc4c3ab |
3 | #switch to BEGIN { extends qw/ ... /; } ? |
a7caa492 |
4 | use base qw/Catalyst::Component Catalyst::AttrContainer/; |
6e58f383 |
5 | use Moose; |
e8b9f2a9 |
6 | |
5fb67d52 |
7 | use Scalar::Util qw/blessed/; |
234763d4 |
8 | use Catalyst::Exception; |
9 | use Catalyst::Utils; |
10 | use Class::Inspector; |
5ee249f2 |
11 | |
0bc4c3ab |
12 | has path_prefix => |
13 | ( |
84ff88cf |
14 | is => 'rw', |
0bc4c3ab |
15 | isa => 'Str', |
16 | init_arg => 'path', |
17 | predicate => 'has_path_prefix', |
18 | ); |
19 | |
20 | has action_namespace => |
21 | ( |
84ff88cf |
22 | is => 'rw', |
0bc4c3ab |
23 | isa => 'Str', |
24 | init_arg => 'namespace', |
25 | predicate => 'has_action_namespace', |
26 | ); |
27 | |
28 | has actions => |
29 | ( |
30 | is => 'rw', |
31 | isa => 'HashRef', |
32 | init_arg => undef, |
33 | ); |
34 | |
35 | # isa => 'ClassName|Catalyst' ? |
36 | has _application => (is => 'rw'); |
0fc2d522 |
37 | sub _app{ shift->_application(@_) } |
0bc4c3ab |
38 | |
39 | sub BUILD { |
40 | my ($self, $args) = @_; |
41 | my $action = delete $args->{action} || {}; |
42 | my $actions = delete $args->{actions} || {}; |
43 | my $attr_value = $self->merge_config_hashes($actions, $action); |
44 | $self->actions($attr_value); |
45 | } |
46 | |
5ee249f2 |
47 | =head1 NAME |
48 | |
49 | Catalyst::Controller - Catalyst Controller base class |
50 | |
51 | =head1 SYNOPSIS |
52 | |
234763d4 |
53 | package MyApp::Controller::Search |
a269e0c2 |
54 | use base qw/Catalyst::Controller/; |
234763d4 |
55 | |
ac5c933b |
56 | sub foo : Local { |
85d9fce6 |
57 | my ($self,$c,@args) = @_; |
ac5c933b |
58 | ... |
234763d4 |
59 | } # Dispatches to /search/foo |
5ee249f2 |
60 | |
61 | =head1 DESCRIPTION |
62 | |
a269e0c2 |
63 | Controllers are where the actions in the Catalyst framework |
64 | reside. Each action is represented by a function with an attribute to |
65 | identify what kind of action it is. See the L<Catalyst::Dispatcher> |
66 | for more info about how Catalyst dispatches to actions. |
234763d4 |
67 | |
68 | =cut |
69 | |
2361ed67 |
70 | #I think both of these could be attributes. doesn't really seem like they need |
71 | #to ble class data. i think that attributes +default would work just fine |
e8b9f2a9 |
72 | __PACKAGE__->mk_classdata($_) for qw/_dispatch_steps _action_class/; |
234763d4 |
73 | |
e8b9f2a9 |
74 | __PACKAGE__->_dispatch_steps( [qw/_BEGIN _AUTO _ACTION/] ); |
75 | __PACKAGE__->_action_class('Catalyst::Action'); |
76 | |
234763d4 |
77 | |
78 | sub _DISPATCH : Private { |
79 | my ( $self, $c ) = @_; |
80 | |
81 | foreach my $disp ( @{ $self->_dispatch_steps } ) { |
82 | last unless $c->forward($disp); |
83 | } |
84 | |
85 | $c->forward('_END'); |
86 | } |
87 | |
88 | sub _BEGIN : Private { |
89 | my ( $self, $c ) = @_; |
90 | my $begin = ( $c->get_actions( 'begin', $c->namespace ) )[-1]; |
91 | return 1 unless $begin; |
92 | $begin->dispatch( $c ); |
93 | return !@{ $c->error }; |
94 | } |
95 | |
96 | sub _AUTO : Private { |
97 | my ( $self, $c ) = @_; |
98 | my @auto = $c->get_actions( 'auto', $c->namespace ); |
99 | foreach my $auto (@auto) { |
100 | $auto->dispatch( $c ); |
101 | return 0 unless $c->state; |
102 | } |
103 | return 1; |
104 | } |
105 | |
106 | sub _ACTION : Private { |
107 | my ( $self, $c ) = @_; |
108 | if ( ref $c->action |
109 | && $c->action->can('execute') |
110 | && $c->req->action ) |
111 | { |
112 | $c->action->dispatch( $c ); |
113 | } |
114 | return !@{ $c->error }; |
115 | } |
116 | |
117 | sub _END : Private { |
118 | my ( $self, $c ) = @_; |
119 | my $end = ( $c->get_actions( 'end', $c->namespace ) )[-1]; |
120 | return 1 unless $end; |
121 | $end->dispatch( $c ); |
122 | return !@{ $c->error }; |
123 | } |
124 | |
4090e3bb |
125 | around new => sub { |
126 | my $orig = shift; |
e8b9f2a9 |
127 | my $self = shift; |
128 | my $app = $_[0]; |
4090e3bb |
129 | my $new = $self->$orig(@_); |
e8b9f2a9 |
130 | $new->_application( $app ); |
131 | return $new; |
4090e3bb |
132 | }; |
e8b9f2a9 |
133 | |
234763d4 |
134 | sub action_for { |
135 | my ( $self, $name ) = @_; |
136 | my $app = ($self->isa('Catalyst') ? $self : $self->_application); |
137 | return $app->dispatcher->get_action($name, $self->action_namespace); |
138 | } |
139 | |
0fc2d522 |
140 | #my opinion is that this whole sub really should be a builder method, not |
141 | #something that happens on every call. Anyone else disagree?? -- groditi |
96d8d513 |
142 | ## -- apparently this is all just waiting for app/ctx split |
0bc4c3ab |
143 | around action_namespace => sub { |
0fc2d522 |
144 | my $orig = shift; |
145 | my ( $self, $c ) = @_; |
0bc4c3ab |
146 | |
5fb67d52 |
147 | if( ref($self) ){ |
0bc4c3ab |
148 | return $self->$orig if $self->has_action_namespace; |
4090e3bb |
149 | } else { |
0bc4c3ab |
150 | return $self->config->{namespace} if exists $self->config->{namespace}; |
151 | } |
234763d4 |
152 | |
0bc4c3ab |
153 | my $case_s; |
154 | if( $c ){ |
155 | $case_s = $c->config->{case_sensitive}; |
156 | } else { |
157 | if ($self->isa('Catalyst')) { |
158 | $case_s = $self->config->{case_sensitive}; |
159 | } else { |
160 | if (ref $self) { |
161 | $case_s = $self->_application->config->{case_sensitive}; |
162 | } else { |
163 | confess("Can't figure out case_sensitive setting"); |
164 | } |
165 | } |
234763d4 |
166 | } |
0bc4c3ab |
167 | |
84ff88cf |
168 | my $namespace = Catalyst::Utils::class2prefix(ref($self) || $self, $case_s) || ''; |
169 | $self->$orig($namespace) if ref($self); |
170 | return $namespace; |
0bc4c3ab |
171 | }; |
172 | |
0fc2d522 |
173 | #Once again, this is probably better written as a builder method |
0bc4c3ab |
174 | around path_prefix => sub { |
175 | my $orig = shift; |
176 | my $self = shift; |
5fb67d52 |
177 | if( ref($self) ){ |
0bc4c3ab |
178 | return $self->$orig if $self->has_path_prefix; |
179 | } else { |
5fb67d52 |
180 | return $self->config->{path} if exists $self->config->{path}; |
0bc4c3ab |
181 | } |
84ff88cf |
182 | my $namespace = $self->action_namespace(@_); |
183 | $self->$orig($namespace) if ref($self); |
184 | return $namespace; |
0bc4c3ab |
185 | }; |
234763d4 |
186 | |
187 | |
188 | sub register_actions { |
189 | my ( $self, $c ) = @_; |
190 | my $class = ref $self || $self; |
5fb67d52 |
191 | #this is still not correct for some reason. |
234763d4 |
192 | my $namespace = $self->action_namespace($c); |
84ff88cf |
193 | my $meta = $self->meta; |
194 | my %methods = map{ $_->{code}->body => $_->{name} } |
2361ed67 |
195 | grep {$_->{class} ne 'Moose::Object'} #ignore Moose::Object methods |
84ff88cf |
196 | $meta->compute_all_applicable_methods; |
197 | |
234763d4 |
198 | |
199 | # Advanced inheritance support for plugins and the like |
0bc4c3ab |
200 | #moose todo: migrate to eliminate CDI compat |
234763d4 |
201 | my @action_cache; |
84ff88cf |
202 | for my $isa ( $meta->superclasses, $class ) { |
203 | if(my $coderef = $isa->can('_action_cache')){ |
204 | push(@action_cache, @{ $isa->$coderef }); |
234763d4 |
205 | } |
206 | } |
207 | |
208 | foreach my $cache (@action_cache) { |
209 | my $code = $cache->[0]; |
210 | my $method = delete $methods{$code}; # avoid dupe registers |
211 | next unless $method; |
212 | my $attrs = $self->_parse_attrs( $c, $method, @{ $cache->[1] } ); |
213 | if ( $attrs->{Private} && ( keys %$attrs > 1 ) ) { |
214 | $c->log->debug( 'Bad action definition "' |
215 | . join( ' ', @{ $cache->[1] } ) |
216 | . qq/" for "$class->$method"/ ) |
217 | if $c->debug; |
218 | next; |
219 | } |
5fb67d52 |
220 | my $reverse = $namespace ? "${namespace}/${method}" : $method; |
234763d4 |
221 | my $action = $self->create_action( |
222 | name => $method, |
223 | code => $code, |
224 | reverse => $reverse, |
225 | namespace => $namespace, |
226 | class => $class, |
227 | attributes => $attrs, |
228 | ); |
229 | |
230 | $c->dispatcher->register( $c, $action ); |
231 | } |
232 | } |
233 | |
234 | sub create_action { |
235 | my $self = shift; |
236 | my %args = @_; |
237 | |
238 | my $class = (exists $args{attributes}{ActionClass} |
239 | ? $args{attributes}{ActionClass}[0] |
240 | : $self->_action_class); |
241 | |
2361ed67 |
242 | Class::MOP::load_class($class); |
234763d4 |
243 | return $class->new( \%args ); |
244 | } |
245 | |
246 | sub _parse_attrs { |
247 | my ( $self, $c, $name, @attrs ) = @_; |
248 | |
249 | my %raw_attributes; |
250 | |
251 | foreach my $attr (@attrs) { |
252 | |
253 | # Parse out :Foo(bar) into Foo => bar etc (and arrayify) |
254 | |
255 | if ( my ( $key, $value ) = ( $attr =~ /^(.*?)(?:\(\s*(.+?)\s*\))?$/ ) ) |
256 | { |
257 | |
258 | if ( defined $value ) { |
259 | ( $value =~ s/^'(.*)'$/$1/ ) || ( $value =~ s/^"(.*)"/$1/ ); |
260 | } |
261 | push( @{ $raw_attributes{$key} }, $value ); |
262 | } |
263 | } |
264 | |
0bc4c3ab |
265 | #I know that the original behavior was to ignore action if actions was set |
266 | # but i actually think this may be a little more sane? we can always remove |
267 | # the merge behavior quite easily and go back to having actions have |
268 | # presedence over action by modifying the keys. i honestly think this is |
269 | # superior while mantaining really high degree of compat |
270 | my $actions; |
271 | if( ref($self) ) { |
272 | $actions = $self->actions; |
273 | } else { |
274 | my $cfg = $self->config; |
275 | $actions = $self->merge_config_hashes($cfg->{actions}, $cfg->{action}); |
234763d4 |
276 | } |
277 | |
0bc4c3ab |
278 | %raw_attributes = ((exists $actions->{'*'} ? %{$actions->{'*'}} : ()), |
279 | %raw_attributes, |
280 | (exists $actions->{$name} ? %{$actions->{$name}} : ())); |
281 | |
282 | |
234763d4 |
283 | my %final_attributes; |
284 | |
285 | foreach my $key (keys %raw_attributes) { |
286 | |
287 | my $raw = $raw_attributes{$key}; |
288 | |
289 | foreach my $value (ref($raw) eq 'ARRAY' ? @$raw : $raw) { |
290 | |
291 | my $meth = "_parse_${key}_attr"; |
0bc4c3ab |
292 | if ( my $code = $self->can($meth) ) { |
293 | ( $key, $value ) = $self->$code( $c, $name, $value ); |
234763d4 |
294 | } |
295 | push( @{ $final_attributes{$key} }, $value ); |
296 | } |
297 | } |
298 | |
299 | return \%final_attributes; |
300 | } |
301 | |
302 | sub _parse_Global_attr { |
303 | my ( $self, $c, $name, $value ) = @_; |
304 | return $self->_parse_Path_attr( $c, $name, "/$name" ); |
305 | } |
306 | |
307 | sub _parse_Absolute_attr { shift->_parse_Global_attr(@_); } |
308 | |
309 | sub _parse_Local_attr { |
310 | my ( $self, $c, $name, $value ) = @_; |
311 | return $self->_parse_Path_attr( $c, $name, $name ); |
312 | } |
313 | |
314 | sub _parse_Relative_attr { shift->_parse_Local_attr(@_); } |
315 | |
316 | sub _parse_Path_attr { |
317 | my ( $self, $c, $name, $value ) = @_; |
318 | $value ||= ''; |
319 | if ( $value =~ m!^/! ) { |
320 | return ( 'Path', $value ); |
321 | } |
322 | elsif ( length $value ) { |
323 | return ( 'Path', join( '/', $self->path_prefix($c), $value ) ); |
324 | } |
325 | else { |
326 | return ( 'Path', $self->path_prefix($c) ); |
327 | } |
328 | } |
329 | |
330 | sub _parse_Regex_attr { |
331 | my ( $self, $c, $name, $value ) = @_; |
332 | return ( 'Regex', $value ); |
333 | } |
334 | |
335 | sub _parse_Regexp_attr { shift->_parse_Regex_attr(@_); } |
336 | |
337 | sub _parse_LocalRegex_attr { |
338 | my ( $self, $c, $name, $value ) = @_; |
339 | unless ( $value =~ s/^\^// ) { $value = "(?:.*?)$value"; } |
340 | return ( 'Regex', '^' . $self->path_prefix($c) . "/${value}" ); |
341 | } |
342 | |
343 | sub _parse_LocalRegexp_attr { shift->_parse_LocalRegex_attr(@_); } |
344 | |
345 | sub _parse_ActionClass_attr { |
346 | my ( $self, $c, $name, $value ) = @_; |
347 | unless ( $value =~ s/^\+// ) { |
348 | $value = join('::', $self->_action_class, $value ); |
349 | } |
350 | return ( 'ActionClass', $value ); |
351 | } |
352 | |
9287719b |
353 | sub _parse_MyAction_attr { |
354 | my ( $self, $c, $name, $value ) = @_; |
355 | |
356 | my $appclass = Catalyst::Utils::class2appclass($self); |
357 | $value = "${appclass}::Action::${value}"; |
234763d4 |
358 | |
9287719b |
359 | return ( 'ActionClass', $value ); |
360 | } |
234763d4 |
361 | |
0fc2d522 |
362 | no Moose; |
363 | |
46d0346d |
364 | __PACKAGE__->meta->make_immutable; |
365 | |
234763d4 |
366 | 1; |
367 | |
368 | __END__ |
369 | |
370 | =head1 CONFIGURATION |
371 | |
a269e0c2 |
372 | Like any other L<Catalyst::Component>, controllers have a config hash, |
373 | accessible through $self->config from the controller actions. Some |
374 | settings are in use by the Catalyst framework: |
234763d4 |
375 | |
376 | =head2 namespace |
377 | |
a269e0c2 |
378 | This specifies the internal namespace the controller should be bound |
379 | to. By default the controller is bound to the URI version of the |
380 | controller name. For instance controller 'MyApp::Controller::Foo::Bar' |
381 | will be bound to 'foo/bar'. The default Root controller is an example |
382 | of setting namespace to '' (the null string). |
234763d4 |
383 | |
ac5c933b |
384 | =head2 path |
234763d4 |
385 | |
386 | Sets 'path_prefix', as described below. |
387 | |
388 | =head1 METHODS |
389 | |
390 | =head2 $class->new($app, @args) |
391 | |
392 | Proxies through to NEXT::new and stashes the application instance as |
393 | $self->_application. |
394 | |
395 | =head2 $self->action_for('name') |
396 | |
a269e0c2 |
397 | Returns the Catalyst::Action object (if any) for a given method name |
398 | in this component. |
234763d4 |
399 | |
400 | =head2 $self->register_actions($c) |
401 | |
a269e0c2 |
402 | Finds all applicable actions for this component, creates |
403 | Catalyst::Action objects (using $self->create_action) for them and |
404 | registers them with $c->dispatcher. |
234763d4 |
405 | |
406 | =head2 $self->action_namespace($c) |
407 | |
a269e0c2 |
408 | Returns the private namespace for actions in this component. Defaults |
409 | to a value from the controller name (for |
410 | e.g. MyApp::Controller::Foo::Bar becomes "foo/bar") or can be |
411 | overridden from the "namespace" config key. |
234763d4 |
412 | |
413 | |
414 | =head2 $self->path_prefix($c) |
415 | |
a269e0c2 |
416 | Returns the default path prefix for :Local, :LocalRegex and relative |
417 | :Path actions in this component. Defaults to the action_namespace or |
418 | can be overridden from the "path" config key. |
234763d4 |
419 | |
420 | =head2 $self->create_action(%args) |
421 | |
a269e0c2 |
422 | Called with a hash of data to be use for construction of a new |
423 | Catalyst::Action (or appropriate sub/alternative class) object. |
234763d4 |
424 | |
425 | Primarily designed for the use of register_actions. |
426 | |
a269e0c2 |
427 | =head2 $self->_application |
234763d4 |
428 | |
429 | =head2 $self->_app |
430 | |
431 | Returns the application instance stored by C<new()> |
5ee249f2 |
432 | |
433 | =head1 AUTHOR |
434 | |
435 | Sebastian Riedel, C<sri@oook.de> |
234763d4 |
436 | Marcus Ramberg C<mramberg@cpan.org> |
5ee249f2 |
437 | |
438 | =head1 COPYRIGHT |
439 | |
a269e0c2 |
440 | This program is free software, you can redistribute it and/or modify |
441 | it under the same terms as Perl itself. |
5ee249f2 |
442 | |
443 | =cut |