1 package Reaction::InterfaceModel::Reflector::DBIC;
3 use aliased 'Reaction::InterfaceModel::Action::DBIC::ResultSet::Create';
4 use aliased 'Reaction::InterfaceModel::Action::DBIC::ResultSet::DeleteAll';
5 use aliased 'Reaction::InterfaceModel::Action::DBIC::Result::Update';
6 use aliased 'Reaction::InterfaceModel::Action::DBIC::Result::Delete';
8 use aliased 'Reaction::InterfaceModel::Collection::Virtual::ResultSet';
9 use aliased 'Reaction::InterfaceModel::Object';
10 use aliased 'Reaction::InterfaceModel::Action';
18 has make_classes_immutable => (isa => "Bool", is => "rw", required => 1, default => sub{ 1 });
20 #user defined actions and prototypes
21 has object_actions => (isa => "HashRef", is => "rw", lazy_build => 1);
22 has collection_actions => (isa => "HashRef", is => "rw", lazy_build => 1);
24 #which actions to create by default
25 has default_object_actions => (isa => "ArrayRef", is => "rw", lazy_build => 1);
26 has default_collection_actions => (isa => "ArrayRef", is => "rw", lazy_build => 1);
28 #builtin actions and prototypes
29 has builtin_object_actions => (isa => "HashRef", is => "rw", lazy_build => 1);
30 has builtin_collection_actions => (isa => "HashRef", is => "rw", lazy_build => 1);
32 implements build_object_actions => as { {} };
33 implements build_collection_actions => as { {} };
35 implements build_default_object_actions => as { [ qw/Update Delete/ ] };
36 implements build_default_collection_actions => as { [ 'Create' ] };
38 implements build_builtin_object_actions => as {
40 Update => { name => 'Update', base => Update },
41 Delete => { name => 'Delete', base => Delete, attributes => [] },
45 implements build_builtin_collection_actions => as {
46 { Create => {name => 'Create', base => Create } };
47 { DeleteAll => {name => 'DeleteAll', base => DeleteAll } };
50 implements _all_object_actions => as {
52 return $self->merge_hashes
53 ($self->builtin_object_actions, $self->object_actions);
56 implements _all_collection_actions => as {
58 return $self->merge_hashes
59 ($self->builtin_collection_actions, $self->collection_actions);
62 implements dm_name_from_class_name => as {
63 my($self, $class) = @_;
64 confess("wrong arguments") unless $class;
66 $class = "_" . lc($class) . "_store";
70 implements dm_name_from_source_name => as {
71 my($self, $source) = @_;
72 confess("wrong arguments") unless $source;
73 $source =~ s/([a-z0-9])([A-Z])/${1}_${2}/g ;
74 $source = "_" . lc($source) . "_store";
78 implements class_name_from_source_name => as {
79 my ($self, $model_class, $source_name) = @_;
80 confess("wrong arguments") unless $model_class && $source_name;
81 return join "::", $model_class, $source_name;
84 implements class_name_for_collection_of => as {
85 my ($self, $object_class) = @_;
86 confess("wrong arguments") unless $object_class;
87 return "${object_class}::Collection";
90 implements merge_hashes => as {
91 my($self, $left, $right) = @_;
92 return Catalyst::Utils::merge_hashes($left, $right);
95 implements parse_reflect_rules => as {
96 my ($self, $rules, $haystack) = @_;
97 confess('$rules must be an array reference') unless ref $rules eq 'ARRAY';
98 confess('$haystack must be an array reference') unless ref $haystack eq 'ARRAY';
101 my (@exclude, @include, $global_opts);
102 if(@$rules == 2 && $rules->[0] eq '-exclude'){
103 push(@exclude, (ref $rules->[1] eq 'ARRAY' ? @{$rules->[1]} : $rules->[1]));
105 for my $rule ( @$rules ){
106 if (ref $rule eq 'ARRAY' && $rule->[0] eq '-exclude'){
107 push(@exclude, (ref $rule->[1] eq 'ARRAY' ? @{$rule->[1]} : $rule->[1]));
108 } elsif( ref $rule eq 'HASH' ){
109 $global_opts = ref $global_opts eq 'HASH' ?
110 $self->merge_hashes($global_opts, $rule) : $rule;
112 push(@include, $rule);
116 my $check_exclude = sub{
117 for my $rule (@exclude){
118 return 1 if(ref $rule eq 'Regexp' ? $_[0] =~ /$rule/ : $_[0] eq $rule);
123 @$haystack = grep { !$check_exclude->($_) } @$haystack;
124 $self->merge_reflect_rules(\@include, $needles, $haystack, $global_opts);
128 implements merge_reflect_rules => as {
129 my ($self, $rules, $needles, $haystack, $local_opts) = @_;
130 for my $rule ( @$rules ){
131 if(!ref $rule && ( grep {$rule eq $_} @$haystack ) ){
132 $needles->{$rule} = defined $needles->{$rule} ?
133 $self->merge_hashes($needles->{$rule}, $local_opts) : $local_opts;
134 } elsif( ref $rule eq 'Regexp' ){
135 for my $match ( grep { /$rule/ } @$haystack ){
136 $needles->{$match} = defined $needles->{$match} ?
137 $self->merge_hashes($needles->{$match}, $local_opts) : $local_opts;
139 } elsif( ref $rule eq 'ARRAY' ){
141 $opts = pop(@$rule) if @$rule > 1 and ref $rule->[$#$rule] eq 'HASH';
142 $opts = $self->merge_hashes($local_opts, $opts) if defined $local_opts;
143 $self->merge_reflect_rules($rule, $needles, $haystack, $opts);
148 implements reflect_schema => as {
149 my ($self, %opts) = @_;
150 my $base = delete $opts{base} || Object;
151 my $model = delete $opts{model_class};
152 my $schema = delete $opts{schema_class};
153 my $dm_name = delete $opts{domain_model_name};
154 my $dm_args = delete $opts{domain_model_args} || {};
155 $dm_name ||= $self->dm_name_from_class_name($schema);
157 #load all necessary classes
158 confess("model_class and schema_class are required parameters")
159 unless($model && $schema);
160 Class::MOP::load_class( $base );
161 Class::MOP::load_class( $schema );
162 my $meta = eval {Class::MOP::load_class($model); } ?
163 $model->meta : $base->meta->create($model, superclasses => [ $base ]);
165 # sources => undef, #default to qr/./
166 # sources => [], #default to nothing
167 # sources => qr//, #DWIM, treated as [qr//]
168 # sources => [{...}] #DWIM, treat as [qr/./, {...} ]
169 # sources => [[-exclude => ...]] #DWIM, treat as [qr/./, [-exclude => ...]]
170 my $haystack = [ $schema->sources ];
172 my $rules = delete $opts{sources};
175 } elsif( ref $rules eq 'Regexp'){
177 } elsif( ref $rules eq 'ARRAY' && @$rules){
178 #don't add a qr/./ rule if we have at least one match rule
179 push(@$rules, qr/./) unless grep {(ref $_ eq 'ARRAY' && $_->[0] ne '-exclude')
180 || !ref $_ || ref $_ eq 'Regexp'} @$rules;
183 my $sources = $self->parse_reflect_rules($rules, $haystack);
185 my $make_immutable = $meta->is_immutable || $self->make_classes_immutable;
186 $meta->make_mutable if $meta->is_immutable;
188 $meta->add_domain_model
189 ($dm_name, is => 'rw', isa => $schema, required => 1, %$dm_args);
191 for my $source_name (keys %$sources){
192 my $source_opts = $sources->{$source_name} || {};
193 $self->reflect_source(
194 source_name => $source_name,
195 parent_class => $model,
196 schema_class => $schema,
197 source_class => $schema->class($source_name),
198 parent_domain_model_name => $dm_name,
203 $meta->make_immutable if $make_immutable;
207 implements _compute_source_options => as {
208 my ($self, %opts) = @_;
209 my $schema = delete $opts{schema_class};
210 my $source_name = delete $opts{source_name};
211 my $source_class = delete $opts{source_class};
212 my $parent = delete $opts{parent_class};
213 my $parent_dm = delete $opts{parent_domain_model_name};
215 #this is the part where I hate my life for promissing all sorts of DWIMery
216 confess("parent_class and source_name or source_class are required parameters")
217 unless($parent && ($source_name || $source_class));
219 OUTER: until( $schema && $source_name && $source_class && $parent_dm ){
220 if( $schema && !$source_name){
221 next OUTER if $source_name = $source_class->result_source_instance->source_name;
222 } elsif( $schema && !$source_class){
223 next OUTER if $source_class = eval { $schema->class($source_name) };
226 if($source_class && (!$schema || !$source_name)){
228 $schema = $source_class->result_source_instance->schema;
229 next OUTER if $schema && Class::MOP::load_class($schema);
232 $source_name = $source_class->result_source_instance->source_name;
233 next OUTER if $source_name;
236 my @haystack = $parent_dm ?
237 $parent->meta->find_attribute_by_name($parent_dm) : $parent->domain_models;
239 #there's a lot of guessing going on, but it should work fine on most cases
240 INNER: for my $needle (@haystack){
241 my $isa = $needle->_isa_metadata;
242 next INNER unless Class::MOP::load_class( $isa->_isa_metadata );
243 next INNER unless $isa->isa('DBIx::Class::Schema');
244 if(!$parent_dm && $schema && $isa eq $schema){
245 $parent_dm = $needle->name;
250 my $src_class = eval{ $isa->class($source_name) };
251 next INNER unless $src_class;
252 next INNER if($source_class && $source_class ne $src_class);
254 $parent_dm = $needle->name;
255 $source_class = $src_class;
260 #do we even need to go this far?
261 if( !$parent_dm && $schema ){
262 my $tentative = $self->dm_name_from_class_name($schema);
263 $parent_dm = $tentative if grep{$_->name eq $tentative} @haystack;
266 confess("Could not determine options automatically from: schema " .
267 "'${schema}', source_name '${source_name}', source_class " .
268 "'${source_class}', parent_domain_model_name '${parent_dm}'");
272 source_name => $source_name,
273 schema_class => $schema,
274 source_class => $source_class,
275 parent_class => $parent,
276 parent_domain_model_name => $parent_dm,
281 implements add_source => as {
282 my ($self, %opts) = @_;
284 my $model = delete $opts{model_class};
285 my $reader = delete $opts{reader};
286 my $source = delete $opts{source_name};
287 my $dm_name = delete $opts{domain_model_name};
288 my $collection = delete $opts{collection_class};
289 my $name = delete $opts{attribute_name} || $source;
291 confess("model_class and source_name are required parameters")
292 unless $model && $source;
293 my $meta = $model->meta;
295 unless( $collection ){
296 my $object = $self->class_name_from_source_name($model, $source);
297 $collection = $self->class_name_for_collection_of($object);
301 $reader =~ s/([a-z0-9])([A-Z])/${1}_${2}/g ;
302 $reader = lc($reader) . "_collection";
305 my @haystack = $meta->domain_models;
307 @haystack = grep { $_->_isa_metadata->isa('DBIx::Class::Schema') } @haystack;
310 $dm_name = $haystack[0]->name;
311 } elsif(@haystack > 1){
312 confess("Failed to automatically determine domain_model_name. More than one " .
313 "possible match (".(join ", ", map{"'".$_->name."'"} @haystack).")");
315 confess("Failed to automatically determine domain_model_name. No matches.");
325 predicate => "has_${name}",
326 domain_model => $dm_name,
327 orig_attr_name => $source,
329 $collection->new(_source_resultset => shift->$dm_name->resultset($source));
333 my $make_immutable = $meta->is_immutable;
334 $meta->make_mutable if $make_immutable;
335 my $attr = $meta->add_attribute($name, %attr_opts);
336 $meta->make_immutable if $make_immutable;
341 implements reflect_source => as {
342 my ($self, %opts) = @_;
343 my $collection = delete $opts{collection} || {};
344 %opts = %{ $self->merge_hashes(\%opts, $self->_compute_source_options(%opts)) };
346 my $obj_meta = $self->reflect_source_object(%opts);
347 my $col_meta = $self->reflect_source_collection
349 object_class => $obj_meta->name,
350 source_class => $opts{source_class},
355 model_class => $opts{parent_class},
356 source_name => $opts{source_name},
357 domain_model_name => $opts{parent_domain_model_name},
358 collection_class => $col_meta->name,
362 implements reflect_source_collection => as {
363 my ($self, %opts) = @_;
364 my $base = delete $opts{base} || ResultSet;
365 my $class = delete $opts{class};
366 my $object = delete $opts{object_class};
367 my $source = delete $opts{source_class};
368 my $action_rules = delete $opts{actions};
370 confess('object_class and source_class are required parameters')
371 unless $object && $source;
372 $class ||= $self->class_name_for_collection_of($object);
374 Class::MOP::load_class( $base );
375 Class::MOP::load_class( $object );
376 my $meta = eval { Class::MOP::load_class($class) } ?
377 $class->meta : $base->meta->create( $class, superclasses => [ $base ]);
379 my $make_immutable = $meta->is_immutable || $self->make_classes_immutable;;
380 $meta->make_mutable if $meta->is_immutable;
381 $meta->add_method(_build_im_class => sub{ $object } );
382 #XXX as a default pass the domain model as a target_model until i come up with something
383 #better through the coercion method
384 my $def_act_args = sub {
386 return { (target_model => $_[0]->_source_resultset), %{ $super->(@_) } };
388 $meta->add_around_method_modifier('_default_action_args_for', $def_act_args);
392 my $all_actions = $self->_all_collection_actions;
393 my $action_haystack = [keys %$all_actions];
394 if(!defined $action_rules){
395 $action_rules = $self->default_collection_actions;
396 } elsif( (!ref $action_rules && $action_rules) || (ref $action_rules eq 'Regexp') ){
397 $action_rules = [ $action_rules ];
398 } elsif( ref $action_rules eq 'ARRAY' && @$action_rules){
399 #don't add a qr/./ rule if we have at least one match rule
400 push(@$action_rules, qr/./)
401 unless grep {(ref $_ eq 'ARRAY' && $_->[0] ne '-exclude')
402 || !ref $_ || ref $_ eq 'Regexp'} @$action_rules;
405 # XXX this is kind of a dirty hack to support custom actions that are not
406 # previously defined and still be able to use the parse_reflect_rules mechanism
407 my @custom_actions = grep {!exists $all_actions->{$_}}
408 map{ $_->[0] } grep {ref $_ eq 'ARRAY' && $_->[0] ne '-exclude'} @$action_rules;
409 push(@$action_haystack, @custom_actions);
410 my $actions = $self->parse_reflect_rules($action_rules, $action_haystack);
411 for my $action (keys %$actions){
412 my $action_opts = $self->merge_hashes
413 ($all_actions->{$action} || {}, $actions->{$action} || {});
415 #NOTE: If the name of the action is not specified in the prototype then use it's
416 #hash key as the name. I think this is sane beahvior, but I've actually been thinking
417 #of making Action prototypes their own separate objects
418 $self->reflect_source_action(
420 object_class => $object,
421 source_class => $source,
425 # XXX i will move this to use the coercion method soon. this will be
426 # GoodEnough until then. I still need to think a little about the type coercion
427 # thing so i don't make a mess of it
428 my $act_args = sub { #override target model for this action
430 return { %{ $super->(@_) },
431 ($_[1] eq $action ? (target_model => $_[0]->_source_resultset) : () ) };
433 $meta->add_around_method_modifier('_default_action_args_for', $act_args);
436 $meta->make_immutable if $make_immutable;
440 implements reflect_source_object => as {
441 my($self, %opts) = @_;
442 %opts = %{ $self->merge_hashes(\%opts, $self->_compute_source_options(%opts)) };
444 my $base = delete $opts{base} || Object;
445 my $class = delete $opts{class};
446 my $dm_name = delete $opts{domain_model_name};
447 my $dm_opts = delete $opts{domain_model_args} || {};
449 my $source_name = delete $opts{source_name};
450 my $schema = delete $opts{schema_class};
451 my $source_class = delete $opts{source_class};
452 my $parent = delete $opts{parent_class};
453 my $parent_dm = delete $opts{parent_domain_model_name};
455 my $action_rules = delete $opts{actions};
456 my $attr_rules = delete $opts{attributes};
458 $class ||= $self->class_name_from_source_name($parent, $source_name);
460 Class::MOP::load_class($parent);
461 Class::MOP::load_class($schema) if $schema;
462 Class::MOP::load_class($source_class);
464 my $meta = eval { Class::MOP::load_class($class) } ?
465 $class->meta : $base->meta->create($class, superclasses => [ $base ]);
467 #create the domain model
468 $dm_name ||= $self->dm_name_from_source_name($source_name);
470 $dm_opts->{isa} = $source_class;
471 $dm_opts->{is} ||= 'rw';
472 $dm_opts->{required} ||= 1;
474 my $make_immutable = $meta->is_immutable || $self->make_classes_immutable;;
475 $meta->make_mutable if $meta->is_immutable;
477 my $dm_attr = $meta->add_domain_model($dm_name, %$dm_opts);
478 my $dm_reader = $dm_attr->get_read_method;
480 unless( $class->can('inflate_result') ){
481 my $inflate_method = sub {
482 my $class = shift; my ($src) = @_;
483 $src = $src->resolve if $src->isa('DBIx::Class::ResultSourceHandle');
484 $class->new($dm_name, $src->result_class->inflate_result(@_));
486 $meta->add_method('inflate_result', $inflate_method);
489 #XXX this is here to allow action prototypes to work with ListView
490 # maybe Collections hsould have this kind of thing too to allow you to reconstruct them?
491 #i like the possibility to be honest... as aset of key/value pairs they could be URId
492 #XXX move to using 'handles' for this?
493 $meta->add_method('__id', sub {shift->$dm_reader->id} )
494 unless $class->can('__id');
495 #XXX this one is for ActionForm, ChooseOne and ChooseMany need this shit
496 $meta->add_method('__ident_condition', sub {shift->$dm_reader->ident_condition} )
497 unless $class->can('__ident_condition');
499 #XXX this is just a disaster
500 $meta->add_method('display_name', sub {shift->$dm_reader->display_name} )
501 if( $source_class->can('display_name') && !$class->can('display_name'));
503 #XXX as a default pass the domain model as a target_model until i come up with something
504 #better through the coercion method
505 my $def_act_args = sub {
507 confess "no dm reader: $dm_reader on $_[0]" unless $_[0]->can($dm_reader);
508 return { (target_model => $_[0]->$dm_reader), %{ $super->(@_) } };
510 $meta->add_around_method_modifier('_default_action_args_for', $def_act_args);
513 # attributes => undef, #default to qr/./
514 # attributes => [], #default to nothing
515 # attributes => qr//, #DWIM, treated as [qr//]
516 # attributes => [{...}] #DWIM, treat as [qr/./, {...} ]
517 # attributes => [[-exclude => ...]] #DWIM, treat as [qr/./, [-exclude => ...]]
519 [ map { $_->name } $source_class->meta->compute_all_applicable_attributes ];
521 if(!defined $attr_rules){
522 $attr_rules = [qr/./];
523 } elsif( (!ref $attr_rules && $attr_rules) || (ref $attr_rules eq 'Regexp') ){
524 $attr_rules = [ $attr_rules ];
525 } elsif( ref $attr_rules eq 'ARRAY' && @$attr_rules){
526 #don't add a qr/./ rule if we have at least one match rule
527 push(@$attr_rules, qr/./) unless
528 grep {(ref $_ eq 'ARRAY' && $_->[0] ne '-exclude')
529 || !ref $_ || ref $_ eq 'Regexp'} @$attr_rules;
532 my $attributes = $self->parse_reflect_rules($attr_rules, $attr_haystack);
533 for my $attr_name (keys %$attributes){
534 $self->reflect_source_object_attribute(
536 source_class => $source_class,
537 parent_class => $parent,
538 attribute_name => $attr_name,
539 domain_model_name => $dm_name,
540 %{ $attributes->{$attr_name} || {}},
546 my $all_actions = $self->_all_object_actions;
547 my $action_haystack = [keys %$all_actions];
548 if(!defined $action_rules){
549 $action_rules = $self->default_object_actions;
550 } elsif( (!ref $action_rules && $action_rules) || (ref $action_rules eq 'Regexp') ){
551 $action_rules = [ $action_rules ];
552 } elsif( ref $action_rules eq 'ARRAY' && @$action_rules){
553 #don't add a qr/./ rule if we have at least one match rule
554 push(@$action_rules, qr/./)
555 unless grep {(ref $_ eq 'ARRAY' && $_->[0] ne '-exclude')
556 || !ref $_ || ref $_ eq 'Regexp'} @$action_rules;
559 # XXX this is kind of a dirty hack to support custom actions that are not
560 # previously defined and still be able to use the parse_reflect_rules mechanism
561 my @custom_actions = grep {!exists $all_actions->{$_}} map{ $_->[0] }
562 grep {ref $_ eq 'ARRAY' && $_->[0] ne '-exclude'} @$action_rules;
563 push(@$action_haystack, @custom_actions);
564 my $actions = $self->parse_reflect_rules($action_rules, $action_haystack);
565 for my $action (keys %$actions){
566 my $action_opts = $self->merge_hashes
567 ($all_actions->{$action} || {}, $actions->{$action} || {});
569 #NOTE: If the name of the action is not specified in the prototype then use it's
570 #hash key as the name. I think this is sane beahvior, but I've actually been thinking
571 #of making Action prototypes their own separate objects
572 $self->reflect_source_action(
574 object_class => $class,
575 source_class => $source_class,
579 # XXX i will move this to use the coercion method soon. this will be
580 # GoodEnough until then. I still need to think a little about the type coercion
581 # thing so i don't make a mess of it
582 my $act_args = sub { #override target model for this action
584 confess "no dm reader: $dm_reader on $_[0]" unless $_[0]->can($dm_reader);
585 return { %{ $super->(@_) },
586 ($_[1] eq $action ? (target_model => $_[0]->$dm_reader) : () ) };
588 $meta->add_around_method_modifier('_default_action_args_for', $act_args);
592 $meta->make_immutable if $make_immutable;
596 # needs class, attribute_name domain_model_name
597 implements reflect_source_object_attribute => as {
598 my ($self, %opts) = @_;
599 unless( $opts{attribute_name} && $opts{class} && $opts{parent_class}
600 && ( $opts{source_class} || $opts{domain_model_name} ) ){
601 confess( "Error: class, parent_class, attribute_name, and either " .
602 "domain_model_name or source_class are required parameters" );
605 my $meta = $opts{class}->meta;
606 my $attr_opts = $self->parameters_for_source_object_attribute(%opts);
608 my $make_immutable = $meta->is_immutable;
609 $meta->make_mutable if $meta->is_immutable;
611 my $attr = $meta->add_attribute($opts{attribute_name}, %$attr_opts);
613 $meta->make_immutable if $make_immutable;
617 # needs class, attribute_name domain_model_name
618 implements parameters_for_source_object_attribute => as {
619 my ($self, %opts) = @_;
621 my $class = delete $opts{class};
622 my $attr_name = delete $opts{attribute_name};
623 my $dm_name = delete $opts{domain_model_name};
624 my $source_class = delete $opts{source_class};
625 my $parent_class = delete $opts{parent_class};
626 confess("parent_class is a required argument") unless $parent_class;
627 confess("You must supply at least one of domain_model_name and source_class")
628 unless $dm_name || $source_class;
631 $source = $source_class->result_source_instance if $source_class;
633 if( !$source_class ){
634 my $dm = $class->meta->find_attribute_by_name($dm_name);
635 $source_class = $dm->_isa_metadata;
636 $source = $source_class->result_source_instance;
637 } elsif( !$dm_name ){
638 ($dm_name) = map{$_->name} grep{$_->_isa_metadata eq $source_class}
639 $class->meta->domain_models;
640 if( !$dm_name ){ #last resort guess
641 my $tentative = $self->dm_name_from_source_name($source->source_name);
642 ($dm_name) = $tentative if grep{$_->name eq $tentative} $class->domain_models;
646 my $from_attr = $source_class->meta->find_attribute_by_name($attr_name);
648 #default options. lazy build but no outsider method
649 my %attr_opts = ( is => 'ro', lazy => 1, required => 1,
650 clearer => "_clear_${attr_name}",
651 predicate => "has_${attr_name}",
652 domain_model => $dm_name,
653 orig_attr_name => $attr_name,
657 my $constraint_is_ArrayRef =
658 $from_attr->type_constraint->name eq 'ArrayRef' ||
659 $from_attr->type_constraint->is_subtype_of('ArrayRef');
661 if( my $rel_info = $source->relationship_info($attr_name) ){
662 my $rel_accessor = $rel_info->{attrs}->{accessor};
663 my $rel_moniker = $rel_info->{class}->result_source_instance->source_name;
665 if($rel_accessor eq 'multi' && $constraint_is_ArrayRef) {
667 my $sm = $self->class_name_from_source_name($parent_class, $rel_moniker);
668 #type constraint is a collection, and default builds it
669 $attr_opts{isa} = $self->class_name_for_collection_of($sm);
670 $attr_opts{default} = sub {
671 my $rs = shift->$dm_name->related_resultset($attr_name);
672 return $attr_opts{isa}->new(_source_resultset => $rs);
674 } elsif( $rel_accessor eq 'single') {
676 #type constraint is the foreign IM object, default inflates it
677 $attr_opts{isa} = $self->class_name_from_source_name($parent_class, $rel_moniker);
678 $attr_opts{default} = sub {
680 ->find_related($attr_name, {},{result_class => $attr_opts{isa}});
683 } elsif( $constraint_is_ArrayRef && $attr_name =~ m/^(.*)_list$/ ) {
686 my $link_table = "links_to_${mm_name}_list";
687 my ($hm_source, $far_side);
688 eval { $hm_source = $source->related_source($link_table); }
689 || confess "Can't find ${link_table} has_many for ${mm_name}_list";
690 eval { $far_side = $hm_source->related_source($mm_name); }
691 || confess "Can't find ${mm_name} belongs_to on ".$hm_source->result_class
692 ." traversing many-many for ${mm_name}_list";
694 my $sm = $self->class_name_from_source_name($parent_class,$far_side->source_name);
695 $attr_opts{isa} = $self->class_name_for_collection_of($sm);
697 #proper collections will remove the result_class uglyness.
698 $attr_opts{default} = sub {
699 my $rs = shift->$dm_name->result_source->related_source($link_table)
700 ->related_source($mm_name)->resultset;
701 return $attr_opts{isa}->new(_source_resultset => $rs);
705 my $reader = $from_attr->get_read_method;
706 $attr_opts{isa} = $from_attr->_isa_metadata;
707 $attr_opts{default} = sub{ shift->$dm_name->$reader };
713 implements reflect_source_action => as{
714 my($self, %opts) = @_;
715 my $name = delete $opts{name};
716 my $class = delete $opts{class};
717 my $base = delete $opts{base} || Action;
718 my $object = delete $opts{object_class};
719 my $source = delete $opts{source_class};
721 confess("name, object_class and source_class are required arguments")
722 unless $source && $name && $object;
724 my $attr_rules = delete $opts{attributes};
725 $class ||= $object->_default_action_class_for($name);
727 Class::MOP::load_class( $base );
728 Class::MOP::load_class( $object );
729 Class::MOP::load_class( $source );
731 #print STDERR "\n\t", ref $attr_rules eq 'ARRAY' ? @$attr_rules : $attr_rules,"\n";
732 # attributes => undef, #default to qr/./
733 # attributes => [], #default to nothing
734 # attributes => qr//, #DWIM, treated as [qr//]
735 # attributes => [{...}] #DWIM, treat as [qr/./, {...} ]
736 # attributes => [[-exclude => ...]] #DWIM, treat as [qr/./, [-exclude => ...]]
737 my $attr_haystack = [ map {$_->name} $object->meta->parameter_attributes ];
738 if(!defined $attr_rules){
739 $attr_rules = [qr/./];
740 } elsif( (!ref $attr_rules && $attr_rules) || (ref $attr_rules eq 'Regexp') ){
741 $attr_rules = [ $attr_rules ];
742 } elsif( ref $attr_rules eq 'ARRAY' && @$attr_rules){
743 #don't add a qr/./ rule if we have at least one match rule
744 push(@$attr_rules, qr/./) unless
745 grep {(ref $_ eq 'ARRAY' && $_->[0] ne '-exclude')
746 || !ref $_ || ref $_ eq 'Regexp'} @$attr_rules;
749 #print STDERR "${name}\t${class}\t${base}\n";
750 #print STDERR "\t${object}\t${source}\n";
751 #print STDERR "\t",@$attr_rules,"\n";
753 my $o_meta = $object->meta;
754 my $s_meta = $source->meta;
755 my $attributes = $self->parse_reflect_rules($attr_rules, $attr_haystack);
758 my $meta = eval { Class::MOP::load_class($class) } ?
759 $class->meta : $base->meta->create($class, superclasses => [$base]);
760 my $make_immutable = $meta->is_immutable || $self->make_classes_immutable;
761 $meta->make_mutable if $meta->is_immutable;
763 for my $attr_name (keys %$attributes){
764 my $attr_opts = $attributes->{$attr_name} || {};
765 my $o_attr = $o_meta->find_attribute_by_name($attr_name);
766 my $s_attr_name = $o_attr->orig_attr_name || $attr_name;
767 my $s_attr = $s_meta->find_attribute_by_name($s_attr_name);
768 next unless $s_attr->get_write_method; #only rw attributes!
770 my $attr_params = $self->parameters_for_source_object_action_attribute
772 object_class => $object,
773 source_class => $source,
774 attribute_name => $attr_name
776 $meta->add_attribute( $attr_name => %$attr_params);
779 $meta->make_immutable if $make_immutable;
783 implements parameters_for_source_object_action_attribute => as {
784 my ($self, %opts) = @_;
786 my $object = delete $opts{object_class};
787 my $attr_name = delete $opts{attribute_name};
788 my $source_class = delete $opts{source_class};
789 confess("object_class and attribute_name are required parameters")
790 unless $attr_name && $object;
792 my $o_meta = $object->meta;
793 my $dm_name = $o_meta->find_attribute_by_name($attr_name)->domain_model;
794 $source_class ||= $o_meta->find_attribute_by_name($dm_name)->_isa_metadata;
795 my $from_attr = $source_class->meta->find_attribute_by_name($attr_name);
797 confess("${attr_name} is not writeable and can not be reflected")
798 unless $from_attr->get_write_method;
802 isa => $from_attr->_isa_metadata,
803 required => $from_attr->is_required,
804 predicate => "has_${attr_name}",
807 if ($attr_opts{required}) {
808 $attr_opts{lazy} = 1;
809 $attr_opts{default} = $from_attr->has_default ? $from_attr->default :
810 sub{confess("${attr_name} must be provided before calling reader")};
813 #test for relationships
814 my $constraint_is_ArrayRef =
815 $from_attr->type_constraint->name eq 'ArrayRef' ||
816 $from_attr->type_constraint->is_subtype_of('ArrayRef');
818 my $source = $source_class->result_source_instance;
819 if (my $rel_info = $source->relationship_info($attr_name)) {
820 my $rel_accessor = $rel_info->{attrs}->{accessor};
822 if($rel_accessor eq 'multi' && $constraint_is_ArrayRef) {
823 confess "${attr_name} is a rw has_many, this won't work.";
824 } elsif( $rel_accessor eq 'single') {
825 $attr_opts{valid_values} = sub {
826 shift->target_model->result_source->related_source($attr_name)->resultset;
829 } elsif ( $constraint_is_ArrayRef && $attr_name =~ m/^(.*)_list$/) {
831 my $link_table = "links_to_${mm_name}_list";
832 my ($hm_source, $far_side);
833 eval { $hm_source = $source->related_source($link_table); }
834 || confess "Can't find ${link_table} has_many for ${mm_name}_list";
835 eval { $far_side = $hm_source->related_source($mm_name); }
836 || confess "Can't find ${mm_name} belongs_to on ".$hm_source->result_class
837 ." traversing many-many for ${mm_name}_list";
839 $attr_opts{default} = sub { [] };
840 $attr_opts{valid_values} = sub {
841 shift->target_model->result_source->related_source($link_table)
842 ->related_source($mm_name)->resultset;
846 #print STDERR Dumper(\%attr_opts);