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package WebAPI::DBIC::Route; |
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$WebAPI::DBIC::Route::VERSION = '0.004001'; |
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6366466
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use Moo; |
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32540
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7543
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use MooX::StrictConstructor; |
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35026
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use Module::Runtime qw(use_module); |
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has path => ( |
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is => 'ro', |
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required => 1, |
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); |
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has resource_class => ( |
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is => 'ro', |
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required => 1, |
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); |
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has resource_args => ( |
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is => 'ro', |
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required => 1, |
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); |
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has route_defaults => ( |
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is => 'ro', |
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default => sub { {} }, |
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); |
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has validations => ( |
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is => 'ro', |
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default => sub { {} }, |
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); |
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sub BUILD { |
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my $self = shift; |
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my $resource_class = $self->resource_class; |
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my $route_defaults = $self->route_defaults; |
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if ($ENV{WEBAPI_DBIC_DEBUG}) { |
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(my $class = $resource_class) =~ s/^WebAPI::DBIC::Resource//; |
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warn sprintf "/%s => %s (%s)\n", |
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$self->path, $class, |
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join(' ', map { "$_=$route_defaults->{$_}" } keys %$route_defaults); |
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} |
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use_module $resource_class; |
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if (my $set = $self->resource_args->{set}) { |
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# we use the 'result_class' key in the route_defaults to lookup the route |
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# for a given result_class |
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$route_defaults->{result_class} = $set && $set->result_class; |
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} |
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else { |
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warn sprintf "/%s resource_class %s has 'set' method but resource_args does not include 'set'", |
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$self->path, $resource_class |
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if $resource_class->can('set'); |
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} |
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return; |
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} |
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sub as_add_route_args { |
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my $self = shift; |
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my $resource_class = $self->resource_class; |
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# introspect path to extract path param :names |
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my $prr = Path::Router::Route->new(path => $self->path); |
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my $path_var_names = [ |
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map { $prr->get_component_name($_) } |
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grep { $prr->is_component_variable($_) } |
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@{ $prr->components } |
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]; |
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my $resource_args_from_route = sub { |
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# XXX we could try to generate more efficient code here |
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# Something like this: |
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# $args->{id} = [ @_[@indices_of_id_params] ]; |
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# @{$args}{@names_of_non_id_params} = @_[@indices_of_non_id_params] |
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# where the @arrays are pre-computed and closed-over |
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my $req = shift; |
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my $args = shift; |
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for (@$path_var_names) { #in path param name order |
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if (m/^[0-9]+$/) { # an id field |
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$args->{id}[$_-1] = shift @_; |
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} |
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else { |
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$args->{$_} = shift @_; |
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} |
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} |
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}; |
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# this sub acts as the interface between the router and |
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# the Web::Machine instance handling the resource for that url path |
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my $target = sub { |
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my $request = shift; # URL args from router remain in @_ |
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my %resource_args_from_params; |
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# perform any required setup for this request & params in @_ |
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$resource_args_from_route->($request, \%resource_args_from_params, @_); |
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warn sprintf "/%s: running %s machine (extra args: %s; default args: %s)\n", |
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$self->path, $resource_class, |
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join(",", sort keys %resource_args_from_params), |
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join(",", sort keys %{$self->resource_args}) |
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if $ENV{WEBAPI_DBIC_DEBUG}; |
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my $app = Web::Machine->new( |
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resource => $resource_class, |
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resource_args => [ %{$self->resource_args}, %resource_args_from_params ], |
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tracing => $ENV{WEBAPI_DBIC_DEBUG}, |
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)->to_app; |
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#local $SIG{__DIE__} = \&Carp::confess; |
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#Dwarn |
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my $resp = $app->($request->env); |
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return $resp; |
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}; |
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return ( |
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path => $self->path, |
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validations => $self->validations || {}, |
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defaults => $self->route_defaults, |
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target => $target, |
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); |
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} |
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136
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1; |
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138
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__END__ |
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140
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=pod |
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142
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=encoding UTF-8 |
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=head1 NAME |
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146
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WebAPI::DBIC::Route |
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148
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=head1 VERSION |
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150
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version 0.004001 |
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152
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=head1 DESCRIPTION |
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154
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=head1 NAME |
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WebAPI::DBIC::Route - A URL path to a WebAPI::DBIC Resource |
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=head1 AUTHOR |
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Tim Bunce <Tim.Bunce@pobox.com> |
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=head1 COPYRIGHT AND LICENSE |
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This software is copyright (c) 2015 by Tim Bunce. |
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166
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This is free software; you can redistribute it and/or modify it under |
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the same terms as the Perl 5 programming language system itself. |
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169
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=cut |