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annotate Lib/IMPL/Web/Handler/View.pm @ 371:d5c8b955bf8d

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refactoring
author cin
date Fri, 13 Dec 2013 16:49:47 +0400
parents 833e663796c4
children e12c14177848
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1 package IMPL::Web::Handler::View;
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2 use strict;
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3
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4 use Carp qw(carp);
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5 use List::Util qw(first);
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6 use IMPL::lang;
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7 use IMPL::Const qw(:prop);
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8 use IMPL::declare {
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9 require => {
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10 Factory => 'IMPL::Web::View::ObjectFactory',
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11 HttpResponse => 'IMPL::Web::HttpResponse',
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12 Loader => 'IMPL::Code::Loader',
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13 ViewResult => '-IMPL::Web::ViewResult',
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14 Security => 'IMPL::Security'
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15 },
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16 base => [
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17 'IMPL::Object' => undef,
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18 'IMPL::Object::Autofill' => '@_',
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19 'IMPL::Object::Serializable' => undef
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20 ],
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21
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22 props => [
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23 contentType => PROP_RO,
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24 contentCharset => PROP_RO,
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25 view => PROP_RO,
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26 layout => PROP_RO,
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27 selectors => PROP_RO,
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28 defaultDocument => PROP_RW,
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29 _selectorsCache => PROP_RW
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30 ]
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31 };
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32
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33 sub CTOR {
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34 my ($this) = @_;
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35
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36 $this->_selectorsCache([ map $this->ParseRule($_), @{$this->selectors || []} ]);
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37 }
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38
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39 sub Invoke {
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40 my ( $this, $action, $next ) = @_;
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41
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42 my $result = $next ? $next->($action) : undef;
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43
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44 my $model;
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45 if( ref $result and eval { $result->isa(ViewResult) } ) {
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46 $model = $result->model;
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47 } else {
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48 $model = $result;
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49 $result = ViewResult->new(model => $model);
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50 }
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51
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52 my $vars = {
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53 result => $result,
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54 request => sub { $action },
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55 app => $action->application,
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56 location => $action->context->{resourceLocation},
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57 resource => $action->context->{resource},
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58 layout => $this->layout,
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59 document => {},
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60 session => sub { Security->context },
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61 user => sub { Security->principal }
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62 };
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63
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64 my %responseParams = (
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65 type => $this->contentType,
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66 charset => $this->contentCharset,
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67 body => $this->view->display(
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68 $model,
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69 $this->SelectView( $action, ref $model ),
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70 $vars
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71 )
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72 );
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73
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74 $responseParams{status} = $result->status if $result->status;
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75 $responseParams{cookies} = $result->cookies if ref $result->cookies eq 'HASH';
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76 $responseParams{headers} = $result->headers if ref $result->headers eq 'HASH';
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77
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78 return HttpResponse->new(
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79 %responseParams
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80 );
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81 }
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82
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83 sub SelectView {
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84 my ($this,$action) = @_;
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85
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86 my @path;
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87
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88 for(my $r = $action->context->{resource}; $r ; $r = $r->parent ) {
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89 unshift @path, {
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90 name => $r->id,
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91 class => typeof($r->model)
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92 };
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93 }
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94
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95 @path = map { name => $_}, split /\/+/, $action->query->path_info()
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96 unless (@path);
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97
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98 return $this->MatchPath(\@path,$this->_selectorsCache) || $this->defaultDocument;
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99 }
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100
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101 sub ParseRule {
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102 my ($this, $rule) = @_;
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103
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104 my ($selector,$data) = split /\s+=>\s+/, $rule;
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105
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106 my @parts;
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107 my $first = 1;
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108 my $weight = 0;
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109 foreach my $part ( split /\//, $selector ) {
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110 # если первым символом является /
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111 # значит путь в селекторе абсолютный и не нужно
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112 # добавлять "любой" элемент в начало
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113
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114 if($part) {
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115 $weight ++;
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116 push @parts,{ any => 1 } if $first;
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117 } else {
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118 push @parts,{ any => 1 } unless $first;
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119 next;
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120 }
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121
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122 my ($name,$class) = split /@/, $part;
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123
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124 if ( my ( $varName, $rx ) = ( $name =~ m/^\{(?:(\w+)\:)?(.*)\}$/ ) ) {
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125 #this is a regexp
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126
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127 push @parts, {
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128 rx => $rx,
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129 var => $varName,
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130 class => $class,
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131 };
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132 } else {
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133 push @parts, {
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134 name => length($name) ? $name : undef,
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135 class => $class,
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136 };
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137 }
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138 } continue {
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139 $first = 0;
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140 }
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141
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142 return { selector => \@parts, data => $data, weight => $weight };
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143 }
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144
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145 sub MatchPath {
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146 my ($this,$path,$rules) = @_;
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147
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148 $path ||= [];
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149 $rules ||= [];
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150
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151 my @next;
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152
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153 foreach my $segment (@$path) {
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154 foreach my $rule (@$rules) {
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155 my @selector = @{$rule->{selector}};
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156
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157 my $part = shift @selector;
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158
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159 # if this rule doesn't have a selector
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160 next unless $part;
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161
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162 if ($part->{any}) {
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163 #keep the rule for the next try
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164 push @next, $rule;
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165
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166 $part = shift @selector while $part->{any};
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167 }
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168
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169 my $newRule = {
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170 selector => \@selector,
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171 data => $rule->{data},
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172 weight => $rule->{weight},
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diff changeset
173 vars => { %{$rule->{vars} || {}} }
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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174 };
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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175
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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176 my $success = 1;
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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177 if (my $class = $part->{class}) {
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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178 $success = isclass($segment->{class},$class);
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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179 }
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
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180
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
181 if($success && (my $name = $part->{name})) {
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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diff changeset
182 $success = $segment->{name} eq $name;
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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183 } elsif ($success && (my $rx = $part->{rx})) {
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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184 if( my @captures = ($segment->{name} =~ m/($rx)/) ) {
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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185 $newRule->{vars}->{$part->{var}} = \@captures
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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186 if $part->{var};
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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187 } else {
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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diff changeset
188 $success = 0;
203
68a59c3358ff Implemented templates selection mechanism
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189 }
229
47f77e6409f7 heavily reworked the resource model of the web application:
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190 }
285
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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191
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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192 push @next, $newRule if $success;
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
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193
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
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194 }
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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195 $rules = [@next];
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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196 undef @next;
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
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197 }
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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198
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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199 my $result = (
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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200 sort {
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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201 $b->{weight} <=> $a->{weight}
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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202 }
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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203 grep {
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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204 scalar(@{$_->{selector}}) == 0
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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205 }
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
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206 @$rules
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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207 )[0];
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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208
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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diff changeset
209 if($result) {
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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210 my $data = $result->{data};
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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211 $data =~ s/{(\w+)(?:\:(\d+))?}/
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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212 my ($name,$index) = ($1,$2 || 0);
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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213
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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214 if ($result->{vars}{$name}) {
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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215 $result->{vars}{$name}[$index];
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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216 } else {
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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217 "";
203
68a59c3358ff Implemented templates selection mechanism
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218 }
285
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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diff changeset
219 /gex;
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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220
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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diff changeset
221 return $data;
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
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222 } else {
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
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223 return;
203
68a59c3358ff Implemented templates selection mechanism
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parents: 200
diff changeset
224 }
68a59c3358ff Implemented templates selection mechanism
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225 }
68a59c3358ff Implemented templates selection mechanism
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226
199
e743a8481327 Added REST support for forms (with only get and post methods)
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227 1;
e743a8481327 Added REST support for forms (with only get and post methods)
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228
e743a8481327 Added REST support for forms (with only get and post methods)
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229 __END__
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230
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231 =pod
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232
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233 =head1 NAME
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234
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235 C<IMPL::Web::Handler::TTView> - использует шаблоны для построения представления.
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236
e743a8481327 Added REST support for forms (with only get and post methods)
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237 =head1 SYNOPSIS
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238
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239 =begin code xml
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240
353
feeb3bc4a818 corrected error handling while loading templates
cin
parents: 339
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241 <item id="html-view" type="IMPL::Web::Handler::View">
206
c8fe3f84feba +IMPL::Web::Handlers::ViewSelector
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242 <contentType>text/html</contentType>
353
feeb3bc4a818 corrected error handling while loading templates
cin
parents: 339
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243 <view id="tt-loader" type="IMPL::Web::View::TTView">
206
c8fe3f84feba +IMPL::Web::Handlers::ViewSelector
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244 <options type="HASH">
c8fe3f84feba +IMPL::Web::Handlers::ViewSelector
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245 <INCLUDE_PATH type="IMPL::Config::Reference">
c8fe3f84feba +IMPL::Web::Handlers::ViewSelector
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246 <target>IMPL::Config</target>
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247 <AppBase>view</AppBase>
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248 </INCLUDE_PATH>
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249 <INTERPOLATE>1</INTERPOLATE>
c8fe3f84feba +IMPL::Web::Handlers::ViewSelector
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250 <POST_CHOMP>1</POST_CHOMP>
c8fe3f84feba +IMPL::Web::Handlers::ViewSelector
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251 <ENCODING>utf-8</ENCODING>
c8fe3f84feba +IMPL::Web::Handlers::ViewSelector
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252 </options>
c8fe3f84feba +IMPL::Web::Handlers::ViewSelector
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253 <ext>.tt</ext>
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254 <initializer>global.tt</initializer>
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255 <layoutBase>layouts</layoutBase>
353
feeb3bc4a818 corrected error handling while loading templates
cin
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diff changeset
256 </view>
206
c8fe3f84feba +IMPL::Web::Handlers::ViewSelector
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257 <defaultDocument>default</defaultDocument>
c8fe3f84feba +IMPL::Web::Handlers::ViewSelector
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258 <selectors type="ARRAY">
c8fe3f84feba +IMPL::Web::Handlers::ViewSelector
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259 <item>@HASH => dump</item>
c8fe3f84feba +IMPL::Web::Handlers::ViewSelector
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260 <item>@My::Data::Product => product/info</item>
c8fe3f84feba +IMPL::Web::Handlers::ViewSelector
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261 <item>{action:.*} @My::Data::Product => product/{action}</item>
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262 </selectors>
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263 </item>
199
e743a8481327 Added REST support for forms (with only get and post methods)
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264
e743a8481327 Added REST support for forms (with only get and post methods)
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265 =end code xml
e743a8481327 Added REST support for forms (with only get and post methods)
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266
e743a8481327 Added REST support for forms (with only get and post methods)
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267 =head1 DESCRIPTION
e743a8481327 Added REST support for forms (with only get and post methods)
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268
e743a8481327 Added REST support for forms (with only get and post methods)
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269 Подбирает шаблон для представления результата, полученного при выполнении следующего обработчика. При
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270 выборе используется принцип похожий на селекторы C<CSS>, основывающийся на именах ресурсов и их типах
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271 данных.
e743a8481327 Added REST support for forms (with only get and post methods)
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272
285
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
273 Данный обработчик понимает определенные свойства контекста:
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
274
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
275 =over
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
276
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
277 =item * C<resourceLocation>
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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278
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
279 В данном свойстве может быть передана информация о текущем расположении ресурса,
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
280 для которого строится представление. Эта информация будет доступна в шаблоне
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
281 через свойство документа C<location>.
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
282
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
283 =item * C<environment>
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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284
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
285 В данном совойстве контекста передается дополнительная информация об окружении
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
286 ресурса, например, которую задали родительские ресурсы. Использование данного
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
287 свойства позволяет не загромождать ресурс реализацией функциональности по
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
288 поддержке окружения. Это свойство может быть ссылкой на функцию, что позволяет
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
289 формировать контекст только по необходимости, при этом указанная функция будет
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
290 выполнена только один раз, при первом обращении.
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
291
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
292 =back
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
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293
199
e743a8481327 Added REST support for forms (with only get and post methods)
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294 =head1 SELECTORS
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295
e743a8481327 Added REST support for forms (with only get and post methods)
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296 =begin text
e743a8481327 Added REST support for forms (with only get and post methods)
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297
285
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
298 syntax::= selector => template
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
299
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
300 selector::= ([>]segment-template[@class-name])
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
301
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
302 segment-template::= {'{'name:regular-expr'}'|segment-name}
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
303
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
304 name::= \w+
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
305
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
306 segment-name::= \S+
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
307
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
308 class-name::= name[(::name)]
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
309
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
310 url-template@class => template
199
e743a8481327 Added REST support for forms (with only get and post methods)
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311
206
c8fe3f84feba +IMPL::Web::Handlers::ViewSelector
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diff changeset
312 shoes => product/list
285
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
313 /shop//{action:*.}@My::Data::Product => product/{action}
199
e743a8481327 Added REST support for forms (with only get and post methods)
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314
206
c8fe3f84feba +IMPL::Web::Handlers::ViewSelector
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diff changeset
315 stuff >list => product/list
204
d63f9a92d6d4 +IMPL::Config::Include - simple way to include external config
sergey
parents: 203
diff changeset
316 details => product/details
203
68a59c3358ff Implemented templates selection mechanism
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diff changeset
317
199
e743a8481327 Added REST support for forms (with only get and post methods)
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318 =end text
e743a8481327 Added REST support for forms (with only get and post methods)
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319
e743a8481327 Added REST support for forms (with only get and post methods)
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320
e743a8481327 Added REST support for forms (with only get and post methods)
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321 =cut
e743a8481327 Added REST support for forms (with only get and post methods)
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322