+++ /dev/null
-package Reaction::InterfaceModel::Reflector::DBIC::Loader;
-
-use aliased 'Reaction::InterfaceModel::Action::DBIC::ResultSet::Create';
-use aliased 'Reaction::InterfaceModel::Action::DBIC::ResultSet::DeleteAll';
-use aliased 'Reaction::InterfaceModel::Action::DBIC::Result::Update';
-use aliased 'Reaction::InterfaceModel::Action::DBIC::Result::Delete';
-
-use aliased 'Reaction::InterfaceModel::Collection::Virtual::ResultSet';
-use aliased 'Reaction::InterfaceModel::Object';
-use aliased 'Reaction::InterfaceModel::Action';
-use Reaction::Class;
-use Class::MOP;
-
-use Catalyst::Utils;
-
-use namespace::clean -except => [ qw(meta) ];
-
-
-#user defined actions and prototypes
-has object_actions => (isa => "HashRef", is => "rw", lazy_build => 1);
-has collection_actions => (isa => "HashRef", is => "rw", lazy_build => 1);
-
-#which actions to create by default
-has default_object_actions => (isa => "ArrayRef", is => "rw", lazy_build => 1);
-has default_collection_actions => (isa => "ArrayRef", is => "rw", lazy_build => 1);
-
-#builtin actions and prototypes
-has builtin_object_actions => (isa => "HashRef", is => "rw", lazy_build => 1);
-has builtin_collection_actions => (isa => "HashRef", is => "rw", lazy_build => 1);
-sub _build_object_actions { {} };
-sub _build_collection_actions { {} };
-sub _build_default_object_actions { [ qw/Update Delete/ ] };
-sub _build_default_collection_actions { [ qw/Create DeleteAll/ ] };
-sub _build_builtin_object_actions {
- {
- Update => { name => 'Update', base => Update },
- Delete => { name => 'Delete', base => Delete, attributes => [] },
- };
-};
-sub _build_builtin_collection_actions {
- {
- Create => {name => 'Create', base => Create },
- DeleteAll => {name => 'DeleteAll', base => DeleteAll, attributes => [] }
- };
-};
-sub _all_object_actions {
- my $self = shift;
- return $self->merge_hashes
- ($self->builtin_object_actions, $self->object_actions);
-};
-sub _all_collection_actions {
- my $self = shift;
- return $self->merge_hashes
- ($self->builtin_collection_actions, $self->collection_actions);
-};
-sub dm_name_from_class_name {
- my($self, $class) = @_;
- confess("wrong arguments") unless $class;
- $class =~ s/::/_/g;
- $class = "_" . lc($class) . "_store";
- return $class;
-};
-sub dm_name_from_source_name {
- my($self, $source) = @_;
- confess("wrong arguments") unless $source;
- $source =~ s/([a-z0-9])([A-Z])/${1}_${2}/g ;
- $source = "_" . lc($source) . "_store";
- return $source;
-};
-sub class_name_from_source_name {
- my ($self, $model_class, $source_name) = @_;
- confess("wrong arguments") unless $model_class && $source_name;
- return join "::", $model_class, $source_name;
-};
-sub class_name_for_collection_of {
- my ($self, $object_class) = @_;
- confess("wrong arguments") unless $object_class;
- return "${object_class}::Collection";
-};
-sub merge_hashes {
- my($self, $left, $right) = @_;
- return Catalyst::Utils::merge_hashes($left, $right);
-};
-sub parse_reflect_rules {
- my ($self, $rules, $haystack) = @_;
- confess('$rules must be an array reference') unless ref $rules eq 'ARRAY';
- confess('$haystack must be an array reference') unless ref $haystack eq 'ARRAY';
-
- my $needles = {};
- my (@exclude, @include, $global_opts);
- if(@$rules == 2 && $rules->[0] eq '-exclude'){
- push(@exclude, (ref $rules->[1] eq 'ARRAY' ? @{$rules->[1]} : $rules->[1]));
- } else {
- for my $rule ( @$rules ){
- if (ref $rule eq 'ARRAY' && $rule->[0] eq '-exclude'){
- push(@exclude, (ref $rule->[1] eq 'ARRAY' ? @{$rule->[1]} : $rule->[1]));
- } elsif( ref $rule eq 'HASH' ){
- $global_opts = ref $global_opts eq 'HASH' ?
- $self->merge_hashes($global_opts, $rule) : $rule;
- } else {
- push(@include, $rule);
- }
- }
- }
- my $check_exclude = sub{
- for my $rule (@exclude){
- return 1 if(ref $rule eq 'Regexp' ? $_[0] =~ /$rule/ : $_[0] eq $rule);
- }
- return;
- };
-
- @$haystack = grep { !$check_exclude->($_) } @$haystack;
- $self->merge_reflect_rules(\@include, $needles, $haystack, $global_opts);
- return $needles;
-};
-sub merge_reflect_rules {
- my ($self, $rules, $needles, $haystack, $local_opts) = @_;
- for my $rule ( @$rules ){
- if(!ref $rule && ( grep {$rule eq $_} @$haystack ) ){
- $needles->{$rule} = defined $needles->{$rule} ?
- $self->merge_hashes($needles->{$rule}, $local_opts) : $local_opts;
- } elsif( ref $rule eq 'Regexp' ){
- for my $match ( grep { /$rule/ } @$haystack ){
- $needles->{$match} = defined $needles->{$match} ?
- $self->merge_hashes($needles->{$match}, $local_opts) : $local_opts;
- }
- } elsif( ref $rule eq 'ARRAY' ){
- my $opts;
- $opts = pop(@$rule) if @$rule > 1 and ref $rule->[$#$rule] eq 'HASH';
- $opts = $self->merge_hashes($local_opts, $opts) if defined $local_opts;
- $self->merge_reflect_rules($rule, $needles, $haystack, $opts);
- }
- }
-};
-
-
-
-has packages => (
- isa => 'HashRef',
- required => 1,
- is => 'ro',
- default => sub{ {} },
- );
-sub add_to_package {
- my ($self, $package, $args) = @_;
- my $orig = $self->packages->{$package} || {};
- my $merged = $self->merge_hashes($orig,$args || {});
- %$orig = %$merged; #don't break other refs that may be laying around
- return $orig;
-};
-sub reflect_schema {
- my ($self, %opts) = @_;
- my $base = delete $opts{base} || Object;
- my $model = delete $opts{model_class};
- my $schema = delete $opts{schema_class};
- my $dm_name = delete $opts{domain_model_name};
- my $dm_args = delete $opts{domain_model_args} || {};
- $dm_name ||= $self->dm_name_from_class_name($schema);
-
- #load all necessary classes
- confess("model_class and schema_class are required parameters")
- unless($model && $schema);
- Class::MOP::load_class( $schema );
-
- my $package_opts = {name => $model, superclasses => $base };
- my $package = $self->add_to_package($model, $package_opts);
-
- # sources => undef, #default to qr/./
- # sources => [], #default to nothing
- # sources => qr//, #DWIM, treated as [qr//]
- # sources => [{...}] #DWIM, treat as [qr/./, {...} ]
- # sources => [[-exclude => ...]] #DWIM, treat as [qr/./, [-exclude => ...]]
- my $haystack = [ $schema->sources ];
-
- my $rules = delete $opts{sources};
- if(!defined $rules){
- $rules = [qr/./];
- } elsif( ref $rules eq 'Regexp'){
- $rules = [ $rules ];
- } elsif( ref $rules eq 'ARRAY' && @$rules){
- #don't add a qr/./ rule if we have at least one match rule
- push(@$rules, qr/./) unless grep {(ref $_ eq 'ARRAY' && $_->[0] ne '-exclude')
- || !ref $_ || ref $_ eq 'Regexp'} @$rules;
- }
-
- my $sources = $self->parse_reflect_rules($rules, $haystack);
-
-
- my $domain_model = {is => 'rw', isa => $schema, required => 1, %$dm_args};
- $self->add_to_package($model, {domain_models => {$dm_name => $domain_model}});
-
- #push these to packages
- for my $source_name (keys %$sources){
- my $source_opts = $sources->{$source_name} || {};
- $self->reflect_source(
- source_name => $source_name,
- parent_class => $model,
- schema_class => $schema,
- source_class => $schema->class($source_name),
- parent_domain_model_name => $dm_name,
- %$source_opts
- );
- }
-};
-sub _compute_source_options {
- my ($self, %opts) = @_;
- my $schema = delete $opts{schema_class};
- my $source_name = delete $opts{source_name};
- my $source_class = delete $opts{source_class};
- my $parent = delete $opts{parent_class};
- my $parent_dm = delete $opts{parent_domain_model_name};
-
- #this is the part where I hate my life for promissing all sorts of DWIMery
- confess("parent_class and source_name or source_class are required parameters")
- unless($parent && ($source_name || $source_class));
-
-OUTER: until( $schema && $source_name && $source_class && $parent_dm ){
- if( $schema && !$source_name){
- next OUTER if $source_name = $source_class->result_source_instance->source_name;
- } elsif( $schema && !$source_class){
- next OUTER if $source_class = eval { $schema->class($source_name) };
- }
-
- if($source_class && (!$schema || !$source_name)){
- if(!$schema){
- $schema = $source_class->result_source_instance->schema;
- next OUTER if $schema && Class::MOP::load_class($schema);
- }
- if(!$source_name){
- $source_name = $source_class->result_source_instance->source_name;
- next OUTER if $source_name;
- }
- }
-
- my $dms = $self->packages->{$parent}->{domain_models};
- my @haystack = $parent_dm ? $dms->{$parent_dm} : keys %$dms;
-
- #there's a lot of guessing going on, but it should work fine on most cases
- INNER: for my $needle (@haystack){
- my $isa = $dms->{$needle}->{isa};
- #we really have to clean up this nastiness and find a way to bring TCs
- #into the mix here. To do: ( &constraint_is_dbix_class_schema )
- next INNER unless Class::MOP::load_class( $isa );
- next INNER unless $isa->isa('DBIx::Class::Schema');
- if(!$parent_dm && $schema && $isa eq $schema){
- $parent_dm = $needle->name;
- next OUTER;
- }
-
- if( $source_name ){
- my $src_class = eval{ $isa->class($source_name) };
- next INNER unless $src_class;
- next INNER if($source_class && $source_class ne $src_class);
- $schema = $isa;
- $parent_dm = $needle->name;
- $source_class = $src_class;
- next OUTER;
- }
- }
-
- #do we even need to go this far?
- if( !$parent_dm && $schema ){
- my $tentative = $self->dm_name_from_class_name($schema);
- $parent_dm = $tentative if grep{$_ eq $tentative} @haystack;
- }
-
- confess("Could not determine options automatically from: schema " .
- "'${schema}', source_name '${source_name}', source_class " .
- "'${source_class}', parent_domain_model_name '${parent_dm}'");
- }
-
- return {
- source_name => $source_name,
- schema_class => $schema,
- source_class => $source_class,
- parent_class => $parent,
- parent_domain_model_name => $parent_dm,
- };
-};
-sub _class_to_attribute_name {
- my ( $self, $str ) = @_;
- confess("wrong arguments passed for _class_to_attribute_name") unless $str;
- return join('_', map lc, split(/::|(?<=[a-z0-9])(?=[A-Z])/, $str))
-};
-sub add_source {
- my ($self, %opts) = @_;
-
- my $model = delete $opts{model_class};
- my $reader = delete $opts{reader};
- my $source = delete $opts{source_name};
- my $dm_name = delete $opts{domain_model_name};
- my $collection = delete $opts{collection_class};
- my $name = delete $opts{attribute_name} || $source;
-
- confess("model_class and source_name are required parameters")
- unless $model && $source;
-
- unless( $collection ){
- my $object = $self->class_name_from_source_name($model, $source);
- $collection = $self->class_name_for_collection_of($object);
- }
- unless( $reader ){
- $reader = $source;
- $reader =~ s/([a-z0-9])([A-Z])/${1}_${2}/g ;
- $reader = $self->_class_to_attribute_name($reader) . "_collection";
- }
- unless( $dm_name ){
- my $dms = $self->packages->{$model}->{domain_models};
- my @haystack = keys %$dms;
- #again, here i could use that constraint_is_dbix_class_schema thing
- if( @haystack > 1 ){
- @haystack =
- grep { $dms->{$_}{isa}->isa('DBIx::Class::Schema') }
- @haystack;
- }
- if(@haystack == 1){
- $dm_name = $haystack[0];
- } elsif(@haystack > 1){
- confess("Failed to automatically determine domain_model_name. More than one " .
- "possible match (".(join ", ", map{"'${_}'"} @haystack).")");
- } else {
- confess("Failed to automatically determine domain_model_name. No matches.");
- }
- }
-
- my $default_sub = qq^ sub {
- my \$self = \$_[0];
- return $collection->new
- (
- _source_resultset => \$self->$dm_name->resultset('${source}'),
- _parent => \$self,
- );
- };^ ;
- my %attr_opts =
- (
- lazy => 1,
- required => 1,
- isa => $collection,
- reader => $reader,
- predicate => "has_" . $self->_class_to_attribute_name($name) ,
- domain_model => $dm_name,
- orig_attr_name => $source,
- default => \$default_sub, #scalar ref means it's code
- );
-
- $self->add_to_package
- ($model, {parameter_attributes => {$name => \%attr_opts}});
-};
-sub reflect_source {
- my ($self, %opts) = @_;
- my $collection = delete $opts{collection} || {};
- %opts = %{ $self->merge_hashes(\%opts, $self->_compute_source_options(%opts)) };
-
- my $object_name = $self->reflect_source_object(%opts);
- my $collection_name = $self->reflect_source_collection
- (
- object_class => $object_name,
- source_class => $opts{source_class},
- %$collection,
- );
-
- $self->add_source(
- model_class => $opts{parent_class},
- source_name => $opts{source_name},
- domain_model_name => $opts{parent_domain_model_name},
- collection_class => $collection_name,
- );
-};
-sub reflect_source_collection {
- my ($self, %opts) = @_;
- my $base = delete $opts{base} || ResultSet;
- my $class = delete $opts{class};
- my $object = delete $opts{object_class};
- my $source = delete $opts{source_class};
- my $action_rules = delete $opts{actions};
-
- confess('object_class and source_class are required parameters')
- unless $object && $source;
- $class ||= $self->class_name_for_collection_of($object);
-
-
- my $package = {
- name => $class,
- base => $base,
- methods => {},
- method_modifiers => [],
- };
- {
- my $code = qq^sub { '${object}' }^;
- $package->{methods}->{_build_member_type} = \ $code;
- }
-
- my %model_action_map;
- {
- my $all_actions = $self->_all_collection_actions;
- my $action_haystack = [keys %$all_actions];
- if(!defined $action_rules){
- $action_rules = $self->default_collection_actions;
- } elsif( (!ref $action_rules && $action_rules) || (ref $action_rules eq 'Regexp') ){
- $action_rules = [ $action_rules ];
- } elsif( ref $action_rules eq 'ARRAY' && @$action_rules){
- #don't add a qr/./ rule if we have at least one match rule
- push(@$action_rules, qr/./)
- unless grep {(ref $_ eq 'ARRAY' && $_->[0] ne '-exclude')
- || !ref $_ || ref $_ eq 'Regexp'} @$action_rules;
- }
-
- # XXX this is kind of a dirty hack to support custom actions that are not
- # previously defined and still be able to use the parse_reflect_rules mechanism
- my @custom_actions = grep {!exists $all_actions->{$_}}
- map{ $_->[0] } grep {ref $_ eq 'ARRAY' && $_->[0] ne '-exclude'} @$action_rules;
- push(@$action_haystack, @custom_actions);
- my $actions = $self->parse_reflect_rules($action_rules, $action_haystack);
- for my $action (keys %$actions){
- my $action_opts = $self->merge_hashes
- ($all_actions->{$action} || {}, $actions->{$action} || {});
-
- #NOTE: If the name of the action is not specified in the prototype then use it's
- #hash key as the name. I think this is sane beahvior, but I've actually been thinking
- #of making Action prototypes their own separate objects
- $self->reflect_source_action(
- class => join('::', $object, 'Action', $action),
- name => $action,
- object_class => $object,
- source_class => $source,
- %$action_opts,
- );
-
- $model_action_map{$action} = '_source_resultset';
- }
- }
- {
- my $code = q^ sub {
- my $orig = shift;
- my $tm = $_[0]->_source_resultset;
- ^;
-
- while(my($act_name, $tm_meth) = each %model_action_map){
- $code .= qq^ \$tm = \$_[0]->$tm_meth if \$_[1] eq '${act_name}';\n^;
- }
- $code .= q^ return { %{ $orig->(@_) }, target_model => $tm }; ^;
- $code .= "\n }";
- push(
- @{ $package->{method_modifiers} },
- {
- type => 'around',
- name => '_default_action_args_for',
- code => \$code,
- }
- );
- }
- $self->add_to_package($class, $package);
- return $class;
-};
-sub reflect_source_object {
- my($self, %opts) = @_;
- %opts = %{ $self->merge_hashes(\%opts, $self->_compute_source_options(%opts)) };
-
- my $base = delete $opts{base} || Object;
- my $class = delete $opts{class};
- my $dm_name = delete $opts{domain_model_name};
- my $dm_opts = delete $opts{domain_model_args} || {};
-
- my $source_name = delete $opts{source_name};
- my $schema = delete $opts{schema_class};
- my $source_class = delete $opts{source_class};
- my $parent = delete $opts{parent_class};
- my $parent_dm = delete $opts{parent_domain_model_name};
-
- my $action_rules = delete $opts{actions};
- my $attr_rules = delete $opts{attributes};
-
- $class ||= $self->class_name_from_source_name($parent, $source_name);
-
- Class::MOP::load_class($parent);
- Class::MOP::load_class($schema) if $schema;
- Class::MOP::load_class($source_class);
-
- my $package = {
- name => $class,
- base => $base,
- methods => {},
- method_modifiers => [],
- domain_models => {},
- };
-
- #create the domain model
- $dm_name ||= $self->dm_name_from_source_name($source_name);
-
- $dm_opts->{isa} = $source_class;
- $dm_opts->{is} ||= 'rw';
- $dm_opts->{required} ||= 1;
- $dm_opts->{handles} = {
- __id => 'id',
- __ident_condition => 'ident_condition',
- };
- $dm_opts->{handles}->{display_name} = 'display_name'
- if $source_class->can('display_name');
-
- $package->{domain_models}{$dm_name} = {%$dm_opts};
- my $dm_reader = $dm_opts->{reader} || $dm_opts->{accessor} || $dm_name;
-
- {
- my $code = 'sub {
- my $class = shift;
- my ($src) = @_;
- $src = $src->resolve if $src->isa("DBIx::Class::ResultSourceHandle");
- $class->new("'.$dm_name.'", $src->result_class->inflate_result(@_));
- }; ';
- $package->{methods}->{inflate_result} = \$code;
- }
-
- {
- # attributes => undef, #default to qr/./
- # attributes => [], #default to nothing
- # attributes => qr//, #DWIM, treated as [qr//]
- # attributes => [{...}] #DWIM, treat as [qr/./, {...} ]
- # attributes => [[-exclude => ...]] #DWIM, treat as [qr/./, [-exclude => ...]]
- my $attr_haystack =
- [ map { $_->name } $source_class->meta->compute_all_applicable_attributes ];
-
- if(!defined $attr_rules){
- $attr_rules = [qr/./];
- } elsif( (!ref $attr_rules && $attr_rules) || (ref $attr_rules eq 'Regexp') ){
- $attr_rules = [ $attr_rules ];
- } elsif( ref $attr_rules eq 'ARRAY' && @$attr_rules){
- #don't add a qr/./ rule if we have at least one match rule
- push(@$attr_rules, qr/./) unless
- grep {(ref $_ eq 'ARRAY' && $_->[0] ne '-exclude')
- || !ref $_ || ref $_ eq 'Regexp'} @$attr_rules;
- }
-
- my $attributes = $self->parse_reflect_rules($attr_rules, $attr_haystack);
- for my $attr_name (keys %$attributes){
- $self->reflect_source_object_attribute(
- class => $class,
- source_class => $source_class,
- parent_class => $parent,
- attribute_name => $attr_name,
- domain_model_name => $dm_name,
- %{ $attributes->{$attr_name} || {}},
- );
- }
- }
-
- my %model_action_map;
- {
- my $all_actions = $self->_all_object_actions;
- my $action_haystack = [keys %$all_actions];
- if(!defined $action_rules){
- $action_rules = $self->default_object_actions;
- } elsif( (!ref $action_rules && $action_rules) || (ref $action_rules eq 'Regexp') ){
- $action_rules = [ $action_rules ];
- } elsif( ref $action_rules eq 'ARRAY' && @$action_rules){
- #don't add a qr/./ rule if we have at least one match rule
- push(@$action_rules, qr/./)
- unless grep {(ref $_ eq 'ARRAY' && $_->[0] ne '-exclude')
- || !ref $_ || ref $_ eq 'Regexp'} @$action_rules;
- }
-
- # XXX this is kind of a dirty hack to support custom actions that are not
- # previously defined and still be able to use the parse_reflect_rules mechanism
- my @custom_actions = grep {!exists $all_actions->{$_}} map{ $_->[0] }
- grep {ref $_ eq 'ARRAY' && $_->[0] ne '-exclude'} @$action_rules;
- push(@$action_haystack, @custom_actions);
- my $actions = $self->parse_reflect_rules($action_rules, $action_haystack);
- for my $action (keys %$actions){
- my $action_opts = $self->merge_hashes
- ($all_actions->{$action} || {}, $actions->{$action} || {});
-
- #NOTE: If the name of the action is not specified in the prototype then use it's
- #hash key as the name. I think this is sane beahvior, but I've actually been thinking
- #of making Action prototypes their own separate objects
- $self->reflect_source_action(
- class => join('::', $class, 'Action', $action),
- name => $action,
- object_class => $class,
- source_class => $source_class,
- %$action_opts,
- );
- $model_action_map{$action} = $dm_reader;
- }
- }
- {
- my $code = qq^ sub {
- my \$orig = shift;
- my \$tm = \$_[0]->${dm_reader};
- ^;
-
- while(my($act_name, $tm_meth) = each %model_action_map){
- $code .= qq^ \$tm = \$_[0]->${tm_meth} if \$_[1] eq '${act_name}';\n^;
- }
- $code .= q^ return { %{ $orig->(@_) }, target_model => $tm }; ^;
- $code .= "\n }";
- push(
- @{ $package->{method_modifiers} },
- {
- type => 'around',
- name => '_default_action_args_for',
- code => \$code,
- }
- );
- }
- $self->add_to_package($class, $package);
- return $class;
-};
-
-# needs class, attribute_name domain_model_name
-sub reflect_source_object_attribute {
- my ($self, %opts) = @_;
- unless( $opts{attribute_name} && $opts{class} && $opts{parent_class}
- && ( $opts{source_class} || $opts{domain_model_name} ) ){
- confess( "Error: class, parent_class, attribute_name, and either " .
- "domain_model_name or source_class are required parameters" );
- }
-
- my $attr_opts = $self->parameters_for_source_object_attribute(%opts);
- $self->add_to_package
- (
- $opts{class},
- { parameter_attributes => { $opts{attribute_name} => {%$attr_opts} } }
- );
-};
-
-# needs class, attribute_name domain_model_name
-sub parameters_for_source_object_attribute {
- my ($self, %opts) = @_;
-
- my $class = delete $opts{class};
- my $attr_name = delete $opts{attribute_name};
- my $dm_name = delete $opts{domain_model_name};
- my $source_class = delete $opts{source_class};
- my $parent_class = delete $opts{parent_class};
- confess("parent_class is a required argument") unless $parent_class;
- confess("source_class is a required argument") unless $source_class;
- confess("domain_model_name is a required argument") unless $dm_name;
-
- my $source = $source_class->result_source_instance;
- my $from_attr = $source_class->meta->find_attribute_by_name($attr_name);
-
- #default options. lazy build but no outsider method
- my %attr_opts = ( is => 'ro', lazy => 1, required => 1,
- clearer => "_clear_${attr_name}",
- predicate => "has_${attr_name}",
- domain_model => $dm_name,
- orig_attr_name => $attr_name,
- );
-
- #m2m / has_many
- my $constraint_is_ArrayRef =
- $from_attr->type_constraint->name eq 'ArrayRef' ||
- $from_attr->type_constraint->is_subtype_of('ArrayRef');
-
- if( my $rel_info = $source->relationship_info($attr_name) ){
- my $rel_accessor = $rel_info->{attrs}->{accessor};
- my $rel_moniker = $rel_info->{class}->result_source_instance->source_name;
-
- if($rel_accessor eq 'multi' && $constraint_is_ArrayRef) {
- #has_many
- my $sm = $self->class_name_from_source_name($parent_class, $rel_moniker);
- #type constraint is a collection, and default builds it
- my $isa = $attr_opts{isa} = $self->class_name_for_collection_of($sm);
- my $code = qq^ sub {
- my \$rs = shift->${dm_name}->related_resultset('${attr_name}');
- return ${isa}->new(_source_resultset => \$rs);
- }^;
- $attr_opts{default} = \$code;
- } elsif( $rel_accessor eq 'single') {
- #belongs_to
- #type constraint is the foreign IM object, default inflates it
- my $isa = $attr_opts{isa} =
- $self->class_name_from_source_name($parent_class, $rel_moniker);
- my $code = qq^ sub {
- shift->${dm_name}->find_related
- (
- '${attr_name}',
- {},
- { result_class => '${isa}' }
- );
- }^;
- $attr_opts{default} = \$code;
- }
- } elsif( $constraint_is_ArrayRef && $attr_name =~ m/^(.*)_list$/ ) {
- #m2m magic
- my $mm_name = $1;
- my $link_table = "links_to_${mm_name}_list";
- my ($hm_source, $far_side);
- eval { $hm_source = $source->related_source($link_table); }
- || confess "Can't find ${link_table} has_many for ${mm_name}_list";
- eval { $far_side = $hm_source->related_source($mm_name); }
- || confess "Can't find ${mm_name} belongs_to on ".$hm_source->result_class
- ." traversing many-many for ${mm_name}_list";
-
- my $sm = $self->class_name_from_source_name($parent_class,$far_side->source_name);
- my $isa = $attr_opts{isa} = $self->class_name_for_collection_of($sm);
-
- #proper collections will remove the result_class uglyness.
- my $code = qq^ sub {
- my \$rs = shift->${dm_name}->related_resultset('${link_table}')
- ->related_resultset('${mm_name}');
- return ${isa}->new(_source_resultset => \$rs);
- }^;
- $attr_opts{default} = \$code;
-
- } else {
- #no rel
- my $reader = $from_attr->get_read_method;
- $attr_opts{isa} = $from_attr->_isa_metadata;
- $attr_opts{default} = \ "sub{ shift->${dm_name}->${reader} }";
- }
- return \%attr_opts;
-};
-sub reflect_source_action {
- my($self, %opts) = @_;
- my $name = delete $opts{name};
- my $class = delete $opts{class};
- my $base = delete $opts{base} || Action;
- my $object = delete $opts{object_class};
- my $source = delete $opts{source_class};
-
- confess("name, class, object_class and source_class are required arguments")
- unless $class && $source && $name && $object;
-
- my $attr_rules = delete $opts{attributes};
- Class::MOP::load_class( $source );
-
-
- #print STDERR "\n\t", ref $attr_rules eq 'ARRAY' ? @$attr_rules : $attr_rules,"\n";
- # attributes => undef, #default to qr/./
- # attributes => [], #default to nothing
- # attributes => qr//, #DWIM, treated as [qr//]
- # attributes => [{...}] #DWIM, treat as [qr/./, {...} ]
- # attributes => [[-exclude => ...]] #DWIM, treat as [qr/./, [-exclude => ...]]
- my $attr_haystack =
- [ map { $_ } keys %{ $self->packages->{$object}->{parameter_attributes} }];
- if(!defined $attr_rules){
- $attr_rules = [qr/./];
- } elsif( (!ref $attr_rules && $attr_rules) || (ref $attr_rules eq 'Regexp') ){
- $attr_rules = [ $attr_rules ];
- } elsif( ref $attr_rules eq 'ARRAY' && @$attr_rules){
- #don't add a qr/./ rule if we have at least one match rule
- push(@$attr_rules, qr/./) unless
- grep {(ref $_ eq 'ARRAY' && $_->[0] ne '-exclude')
- || !ref $_ || ref $_ eq 'Regexp'} @$attr_rules;
- }
-
- #print STDERR "${name}\t${class}\t${base}\n";
- #print STDERR "\t${object}\t${source}\n";
- #print STDERR "\t",@$attr_rules,"\n";
-
- my $s_meta = $source->meta;
- my $attributes = $self->parse_reflect_rules($attr_rules, $attr_haystack);
-
- #create the class
- my $package = {
- name => $class,
- superclasses => $base,
- parameter_attributes => {},
- };
-
- my $parent_package = $self->packages->{$object};
-
- for my $attr_name (keys %$attributes){
- my $attr_opts = $attributes->{$attr_name} || {};
- my $s_attr_name = $parent_package->{parameter_attributes}
- ->{$attr_name}->{orig_attribute_name} || $attr_name;
- my $s_attr = $s_meta->find_attribute_by_name($s_attr_name);
- confess("Unable to find attribute for '${s_attr_name}' via '${source}'")
- unless defined $s_attr;
- next unless $s_attr->get_write_method
- && $s_attr->get_write_method !~ /^_/; #only rw attributes!
-
- my $attr_params = $self->parameters_for_source_object_action_attribute
- (
- object_class => $object,
- source_class => $source,
- attribute_name => $attr_name
- );
- $package->{parameter_attributes}->{$attr_name} = { %$attr_params };
- }
-};
-sub parameters_for_source_object_action_attribute {
- my ($self, %opts) = @_;
-
- my $object = delete $opts{object_class};
- my $attr_name = delete $opts{attribute_name};
- my $source_class = delete $opts{source_class};
- confess("object_class, $source_class and attribute_name are required parameters")
- unless $attr_name && $object && $source_class;
-
- my $from_attr = $source_class->meta->find_attribute_by_name($attr_name);
-
- confess("${attr_name} is not writeable and can not be reflected")
- unless $from_attr->get_write_method;
-
- my %attr_opts = (
- is => 'rw',
- isa => $from_attr->_isa_metadata,
- required => $from_attr->is_required,
- ($from_attr->is_required
- ? () : (clearer => "clear_${attr_name}")),
- predicate => "has_${attr_name}",
- );
-
- if ($attr_opts{required}) {
- if($from_attr->has_default) {
- $attr_opts{lazy} = 1;
- $attr_opts{default} = $from_attr->default;
- } else {
- $attr_opts{lazy_fail} = 1;
- }
- }
-
- #test for relationships
- my $constraint_is_ArrayRef =
- $from_attr->type_constraint->name eq 'ArrayRef' ||
- $from_attr->type_constraint->is_subtype_of('ArrayRef');
-
- my $source = $source_class->result_source_instance;
- if (my $rel_info = $source->relationship_info($attr_name)) {
- my $rel_accessor = $rel_info->{attrs}->{accessor};
-
- if($rel_accessor eq 'multi' && $constraint_is_ArrayRef) {
- confess "${attr_name} is a rw has_many, this won't work.";
- } elsif( $rel_accessor eq 'single') {
- my $code = qq^ sub {
- shift->target_model->result_source
- ->related_source('${attr_name}')->resultset;
- } ^;
- $attr_opts{valid_values} = \ $code;
- }
- } elsif ( $constraint_is_ArrayRef && $attr_name =~ m/^(.*)_list$/) {
- my $mm_name = $1;
- my $link_table = "links_to_${mm_name}_list";
- my ($hm_source, $far_side);
- eval { $hm_source = $source->related_source($link_table); }
- || confess "Can't find ${link_table} has_many for ${mm_name}_list";
- eval { $far_side = $hm_source->related_source($mm_name); }
- || confess "Can't find ${mm_name} belongs_to on ".$hm_source->result_class
- ." traversing many-many for ${mm_name}_list";
-
- $attr_opts{default} = \ "sub { [] }";
- my $code = qq^sub {
- shift->target_model->result_source->related_source('${link_table}')
- ->related_source('${mm_name}')->resultset;
- } ^;
- }
-
- return \%attr_opts;
-};
-
-__PACKAGE__->meta->make_immutable;
-
-
-1;
projects / catagits/Reaction.git / commitdiff