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8388
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use strict; |
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use warnings; |
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package WebNano::Controller; |
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BEGIN { |
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$WebNano::Controller::VERSION = '0.007'; |
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} |
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1085
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use URI::Escape 'uri_unescape'; |
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1553
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326
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4846
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use Plack::Request; |
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use WebNano::FindController 'find_nested'; |
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use Object::Tiny::RW qw/ app env self_url url_map _req path /; |
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1
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1560
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sub DEBUG { shift->app->DEBUG } |
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sub req { |
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my $self = shift; |
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return $self->_req if defined $self->_req; |
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my $req = Plack::Request->new( $self->env ); |
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82
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$self->_req( $req ); |
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return $req; |
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} |
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1
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30
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sub template_search_path { [] } |
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sub render { |
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1
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my $self = shift; |
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return $self->app->renderer->render( c => $self, @_ ); |
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} |
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sub local_dispatch { |
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1
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my ( $self ) = @_; |
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71
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85
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my @parts = @{ $self->path }; |
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1561
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my $name = uri_unescape( shift @parts ); |
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$name = 'index' if !defined( $name ) || !length( $name ); |
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71
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74
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my $action; |
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71
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100
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2023
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if( my $map = $self->url_map ){ |
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49
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100
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325
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if( ref $map eq 'HASH' ){ |
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$action = $self->can( $map->{$name} ) if $map->{$name}; |
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} |
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49
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100
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151
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if( ref $map eq 'ARRAY' ){ |
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8
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100
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$action = $self->can( $name ) if grep { $_ eq $name } @$map; |
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} |
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} |
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100
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604
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$action = $self->can( $name . '_action' ) if !$action; |
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175
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if( ! $action ){ |
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806
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my $method = uc( $self->env->{REQUEST_METHOD} ); |
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37
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66
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439
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$action = $self->can( $name . '_' . $method ) if $method eq 'GET' || $method eq 'POST'; |
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} |
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204
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my $out; |
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100
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129
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if( $action ){ |
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35
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101
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$out = $action->( $self, @parts ); |
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} |
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71
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50
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66
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340
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warn 'No local action found in "' . ref($self) . qq{" for "$name"\n} if !defined( $out ) && $self->DEBUG; |
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71
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164
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return $out; |
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} |
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59
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60
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sub _self_path{ |
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35
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35
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48
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my $class = shift; |
62
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35
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40
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my $path = $class; |
63
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35
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146
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$path =~ s/.*::Controller(?=(::|$))//; |
64
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35
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46
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$path =~ s{::}{/}; |
65
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35
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745
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return $path . '/'; |
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} |
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68
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sub dispatch_to_class { |
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35
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1
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52
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my ( $self, $to ) = @_; |
70
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35
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50
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126
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$to =~ s/::|'//g if defined( $to ); |
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74
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return if !length( $to ); |
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35
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54
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my $class = ref $self; |
73
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35
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96
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my $controller_class = find_nested( $class->_self_path . $to, $self->app->controller_search_path ); |
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34
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100
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113
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if( !$controller_class ){ |
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5
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16
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warn qq{No subcontroller found in "$class" for "} . $class->_self_path . $to. qq{"\n} if $self->DEBUG; |
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5
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30
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return; |
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} |
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76
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warn qq{Dispatching to "$controller_class"\n} if $self->DEBUG; |
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29
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595
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return $controller_class->handle( |
80
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path => $self->path, |
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app => $self->app, |
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self_url => $self->{self_url} . $to. '/', |
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env => $self->env, |
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); |
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} |
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87
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sub handle { |
88
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71
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71
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1
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648
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my ( $class, %args ) = @_; |
89
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71
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337
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my $self = $class->new( %args ); |
90
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71
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2262
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my $out = $self->local_dispatch(); |
91
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71
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100
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100
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606
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return $out if defined( $out ) || !$self->search_subcontrollers; |
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35
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155
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my $path_part = shift @{ $self->path }; |
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35
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670
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93
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35
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251
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return $self->dispatch_to_class( $path_part ); |
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} |
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96
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1
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1
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1
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11
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sub search_subcontrollers { 0 } |
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98
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1; |
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100
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101
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102
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=pod |
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104
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=head1 NAME |
105
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106
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WebNano::Controller - WebNano Controller |
107
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108
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=head1 VERSION |
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110
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version 0.007 |
111
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112
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=head1 DESCRIPTION |
113
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114
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This is the WebNano base controller. It's handle method dispatches the request |
115
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to appropriate action method or to a next controller. |
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117
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The action method should return a string containing the HTML page, |
118
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a Plack::Response object or a code ref. |
119
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120
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If there is no suitable method in the current class and the method search_subcontrollers |
121
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returns a true value then child controller classes |
122
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are tried out. If there is found one that matches the path part then it is |
123
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instantiated with the current psgi env and it's handle method is called. |
124
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125
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In a path C all |
126
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C, C |
127
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and C need to |
128
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override search_subcontrollers method to return 1. |
129
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130
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=head1 SYNOPSIS |
131
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With Moose: |
132
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133
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package MyApp::Controller; |
134
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135
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use Moose; |
136
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use MooseX::NonMoose; |
137
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138
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extends 'WebNano::Controller'; |
139
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140
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has '+url_map' => ( default => sub { { 'Mapped Url' => 'mapped_url' } } ); |
141
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142
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sub index_action { |
143
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my $self = shift; |
144
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return $self->render( 'index.tt' ); |
145
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} |
146
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147
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sub mapped_url { 'This is the mapped url page' } |
148
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149
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1; |
150
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151
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=head1 METHODS |
152
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153
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=head2 handle |
154
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155
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This is a class method - it receives the arguments, creates the controller |
156
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object and then uses it's L method. |
157
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158
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Should return a Plack::Response object, a string containing the HTML page, a code ref |
159
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or undef (which is later interpreted as 404). |
160
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161
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=head2 render |
162
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163
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Renders a template. |
164
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165
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=head2 local_dispatch |
166
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167
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Finds the method to be called for a given path and dispatches to it. |
168
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169
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=head2 req |
170
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171
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Plack::Reqest made from env |
172
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173
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=head2 template_search_path |
174
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175
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=head2 search_subcontrollers |
176
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177
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If search_subcontrollers returns true and there are no local actions |
178
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then subcontrollers are searched. |
179
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180
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=head2 dispatch_to_class |
181
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182
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=head2 DEBUG |
183
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184
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By default returns the DEBUG flag from the application. When this returns C then |
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some additional logging is directed to STDOUT. |
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187
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=head1 ATTRIBUTES |
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189
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=head2 url_map |
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191
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A hash that is used as path part to method map. |
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193
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=head2 app |
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195
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Links back to the application object. |
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197
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=head2 env |
198
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199
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L |
200
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201
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=head2 self_url |
202
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203
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=head2 path |
204
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205
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=head1 AUTHOR |
206
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207
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Zbigniew Lukasiak |
208
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209
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=head1 COPYRIGHT AND LICENSE |
210
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211
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This software is Copyright (c) 2010 by Zbigniew Lukasiak . |
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213
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This is free software, licensed under: |
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215
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The Artistic License 2.0 (GPL Compatible) |
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|
|
|
|
|
=cut |
218
|
|
|
|
|
|
|
|
219
|
|
|
|
|
|
|
|
220
|
|
|
|
|
|
|
__END__ |