Mercurial > pub > Impl

annotate Lib/IMPL/Web/Handler/TTView.pm @ 290:7b0dad6117d5

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*TTView: fixed memory leak
author sergey
date Wed, 20 Feb 2013 17:24:57 +0400
parents 546957c50a36
children 5d14baa35790
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 package IMPL::Web::Handler::TTView;
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2 use strict;
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3
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4 use List::Util qw(first);
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5 use IMPL::lang;
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6 use IMPL::Const qw(:prop);
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7 use IMPL::declare {
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8 require => {
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9 Factory => 'IMPL::Web::View::ObjectFactory',
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10 HttpResponse => 'IMPL::Web::HttpResponse',
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11 Loader => 'IMPL::Code::Loader',
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12 ViewResult => '-IMPL::Web::ViewResult'
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13 },
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14 base => [
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15 'IMPL::Object' => undef,
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16 'IMPL::Object::Autofill' => '@_',
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17 'IMPL::Object::Serializable' => undef
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18 ],
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19
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20 props => [
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21 contentType => PROP_RO,
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22 contentCharset => PROP_RO,
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23 loader => PROP_RO,
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24 selectors => PROP_RO,
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25 defaultDocument => PROP_RW,
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26 _selectorsCache => PROP_RW
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27 ]
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28 };
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29
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30 sub CTOR {
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31 my ($this) = @_;
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32
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33 $this->_selectorsCache([ map $this->ParseRule($_), @{$this->selectors || []} ]);
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34 }
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35
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36 sub Invoke {
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37 my ( $this, $action, $next ) = @_;
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38
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39 my $result = $next ? $next->($action) : undef;
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40
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41 my ($model,$view);
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42 if( ref $result and eval { $result->isa(ViewResult) } ) {
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43 $model = $result->model;
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44 $view = $result;
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45 } else {
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46 $model = $result;
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47 $view = ViewResult->new(model => $model);
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48 }
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49
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50 my $vars = {
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51 view => $view,
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52 model => $model,
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53 action => $action,
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54 app => $action->application,
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55 env => _cached($action->context->{environment}),
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56 ImportClass => sub {
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57 my $class = shift;
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58
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59 $class = Loader->safe->Require($class);
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60
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61 return Factory->new($class);
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62 }
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63 };
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64
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65 my $doc =
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66 $this->loader->document( eval { $view->template } || $this->SelectView( $action, ref $model ),
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67 $vars );
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68
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69 $doc->location($action->context->{resourceLocation});
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70
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71 my %responseParams = (
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72 type => $this->contentType,
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73 charset => $this->contentCharset,
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74 body => $doc->Render()
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75 );
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76
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77 $responseParams{status} = $view->status if $view->status;
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78 $responseParams{cookies} = $view->cookies if ref $view->cookies eq 'HASH';
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79 $responseParams{headers} = $view->headers if ref $view->headers eq 'HASH';
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80
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81 return HttpResponse->new(
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82 %responseParams
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83 );
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84 }
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85
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86 sub _cached {
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87 my $arg = shift;
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88
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89 return $arg unless ref $arg eq 'CODE';
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90
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91 return sub {
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92 ref $arg eq 'CODE' ? $arg = &$arg() : $arg;
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93 }
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94 }
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95
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96 sub SelectView {
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97 my ($this,$action) = @_;
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98
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99 my @path;
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100
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101 for(my $r = $action->context->{resource}; $r ; $r = $r->parent ) {
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102 unshift @path, {
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103 name => $r->id,
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104 class => typeof($r->model)
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105 };
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106 }
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107
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108 @path = map { name => $_}, split /\/+/, $action->query->path_info()
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109 unless (@path);
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110
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111 return $this->MatchPath(\@path,$this->_selectorsCache) || $this->defaultDocument;
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112 }
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113
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114 sub ParseRule {
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115 my ($this, $rule) = @_;
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116
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117 my ($selector,$data) = split /\s+=>\s+/, $rule;
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118
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119 my @parts;
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120 my $first = 1;
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121 my $weight = 0;
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122 foreach my $part ( split /\//, $selector ) {
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123 # если первым символом является /
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124 # значит путь в селекторе абсолютный и не нужно
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125 # добавлять "любой" элемент в начало
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126
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127 if($part) {
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128 $weight ++;
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129 push @parts,{ any => 1 } if $first;
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130 } else {
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131 push @parts,{ any => 1 } unless $first;
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132 next;
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133 }
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134
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135 my ($name,$class) = split /@/, $part;
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136
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137 if ( my ( $varName, $rx ) = ( $name =~ m/^\{(?:(\w+)\:)?(.*)\}$/ ) ) {
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138 #this is a regexp
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139
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140 push @parts, {
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141 rx => $rx,
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142 var => $varName,
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143 class => $class,
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144 };
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145 } else {
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146 push @parts, {
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147 name => length($name) ? $name : undef,
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148 class => $class,
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149 };
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150 }
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151 } continue {
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152 $first = 0;
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153 }
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154
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155 return { selector => \@parts, data => $data, weight => $weight };
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156 }
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157
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158 sub MatchPath {
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159 my ($this,$path,$rules) = @_;
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160
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161 $path ||= [];
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162 $rules ||= [];
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163
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164 my @next;
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165
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166 foreach my $segment (@$path) {
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167 foreach my $rule (@$rules) {
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168 my @selector = @{$rule->{selector}};
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169
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170 my $part = shift @selector;
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171
285
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
172 if ($part->{any}) {
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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diff changeset
173 #keep the rule for the next try
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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diff changeset
174 push @next, $rule;
229
47f77e6409f7 heavily reworked the resource model of the web application:
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175
285
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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diff changeset
176 $part = shift @selector while $part->{any};
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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177 }
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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178
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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179 # if this rule doesn't have a selector
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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180 next unless $part;
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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181
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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182 my $newRule = {
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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183 selector => \@selector,
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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184 data => $rule->{data},
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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185 weight => $rule->{weight},
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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186 vars => { %{$rule->{vars} || {}} }
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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diff changeset
187 };
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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188
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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diff changeset
189 my $success = 1;
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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190 if (my $class = $part->{class}) {
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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191 $success = isclass($segment->{class},$class);
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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192 }
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
193
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
194 if($success && (my $name = $part->{name})) {
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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diff changeset
195 $success = $segment->{name} eq $name;
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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196 } elsif ($success && (my $rx = $part->{rx})) {
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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diff changeset
197 if( my @captures = ($segment->{name} =~ m/($rx)/) ) {
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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diff changeset
198 $newRule->{vars}->{$part->{var}} = \@captures
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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diff changeset
199 if $part->{var};
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
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200 } else {
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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diff changeset
201 $success = 0;
203
68a59c3358ff Implemented templates selection mechanism
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diff changeset
202 }
229
47f77e6409f7 heavily reworked the resource model of the web application:
sergey
parents: 206
diff changeset
203 }
285
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
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204
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
205 push @next, $newRule if $success;
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
206
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
207 }
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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208 $rules = [@next];
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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diff changeset
209 undef @next;
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
210 }
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
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211
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
212 my $result = (
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
213 sort {
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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214 $b->{weight} <=> $a->{weight}
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
215 }
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
216 grep {
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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diff changeset
217 scalar(@{$_->{selector}}) == 0
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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218 }
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
219 @$rules
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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220 )[0];
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
221
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
222 if($result) {
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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223 my $data = $result->{data};
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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224 $data =~ s/{(\w+)(?:\:(\d+))?}/
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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225 my ($name,$index) = ($1,$2 || 0);
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
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226
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
227 if ($result->{vars}{$name}) {
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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228 $result->{vars}{$name}[$index];
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
229 } else {
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
230 "";
203
68a59c3358ff Implemented templates selection mechanism
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231 }
285
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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diff changeset
232 /gex;
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
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233
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
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diff changeset
234 return $data;
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
235 } else {
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
236 return;
203
68a59c3358ff Implemented templates selection mechanism
sergey
parents: 200
diff changeset
237 }
68a59c3358ff Implemented templates selection mechanism
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diff changeset
238 }
68a59c3358ff Implemented templates selection mechanism
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239
199
e743a8481327 Added REST support for forms (with only get and post methods)
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240 1;
e743a8481327 Added REST support for forms (with only get and post methods)
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241
e743a8481327 Added REST support for forms (with only get and post methods)
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242 __END__
e743a8481327 Added REST support for forms (with only get and post methods)
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243
e743a8481327 Added REST support for forms (with only get and post methods)
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244 =pod
e743a8481327 Added REST support for forms (with only get and post methods)
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245
e743a8481327 Added REST support for forms (with only get and post methods)
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246 =head1 NAME
e743a8481327 Added REST support for forms (with only get and post methods)
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247
e743a8481327 Added REST support for forms (with only get and post methods)
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248 C<IMPL::Web::Handler::TTView> - использует шаблоны для построения представления.
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249
e743a8481327 Added REST support for forms (with only get and post methods)
sergey
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250 =head1 SYNOPSIS
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251
e743a8481327 Added REST support for forms (with only get and post methods)
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252 =begin code xml
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253
206
c8fe3f84feba +IMPL::Web::Handlers::ViewSelector
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254 <item id="html-view" type="IMPL::Web::Handler::TTView">
c8fe3f84feba +IMPL::Web::Handlers::ViewSelector
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255 <contentType>text/html</contentType>
c8fe3f84feba +IMPL::Web::Handlers::ViewSelector
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parents: 205
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256 <loader id="tt-loader" type="IMPL::Web::View::TTLoader">
c8fe3f84feba +IMPL::Web::Handlers::ViewSelector
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257 <options type="HASH">
c8fe3f84feba +IMPL::Web::Handlers::ViewSelector
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258 <INCLUDE_PATH type="IMPL::Config::Reference">
c8fe3f84feba +IMPL::Web::Handlers::ViewSelector
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259 <target>IMPL::Config</target>
c8fe3f84feba +IMPL::Web::Handlers::ViewSelector
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260 <AppBase>view</AppBase>
c8fe3f84feba +IMPL::Web::Handlers::ViewSelector
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diff changeset
261 </INCLUDE_PATH>
c8fe3f84feba +IMPL::Web::Handlers::ViewSelector
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diff changeset
262 <INTERPOLATE>1</INTERPOLATE>
c8fe3f84feba +IMPL::Web::Handlers::ViewSelector
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263 <POST_CHOMP>1</POST_CHOMP>
c8fe3f84feba +IMPL::Web::Handlers::ViewSelector
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diff changeset
264 <ENCODING>utf-8</ENCODING>
c8fe3f84feba +IMPL::Web::Handlers::ViewSelector
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265 </options>
c8fe3f84feba +IMPL::Web::Handlers::ViewSelector
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diff changeset
266 <ext>.tt</ext>
c8fe3f84feba +IMPL::Web::Handlers::ViewSelector
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267 <initializer>global.tt</initializer>
c8fe3f84feba +IMPL::Web::Handlers::ViewSelector
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268 <layoutBase>layouts</layoutBase>
c8fe3f84feba +IMPL::Web::Handlers::ViewSelector
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269 </loader>
c8fe3f84feba +IMPL::Web::Handlers::ViewSelector
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diff changeset
270 <defaultDocument>default</defaultDocument>
c8fe3f84feba +IMPL::Web::Handlers::ViewSelector
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diff changeset
271 <selectors type="ARRAY">
c8fe3f84feba +IMPL::Web::Handlers::ViewSelector
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parents: 205
diff changeset
272 <item>@HASH => dump</item>
c8fe3f84feba +IMPL::Web::Handlers::ViewSelector
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273 <item>@My::Data::Product => product/info</item>
c8fe3f84feba +IMPL::Web::Handlers::ViewSelector
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274 <item>{action:.*} @My::Data::Product => product/{action}</item>
c8fe3f84feba +IMPL::Web::Handlers::ViewSelector
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diff changeset
275 </selectors>
c8fe3f84feba +IMPL::Web::Handlers::ViewSelector
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diff changeset
276 </item>
199
e743a8481327 Added REST support for forms (with only get and post methods)
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277
e743a8481327 Added REST support for forms (with only get and post methods)
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278 =end code xml
e743a8481327 Added REST support for forms (with only get and post methods)
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279
e743a8481327 Added REST support for forms (with only get and post methods)
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280 =head1 DESCRIPTION
e743a8481327 Added REST support for forms (with only get and post methods)
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281
e743a8481327 Added REST support for forms (with only get and post methods)
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282 Подбирает шаблон для представления результата, полученного при выполнении следующего обработчика. При
e743a8481327 Added REST support for forms (with only get and post methods)
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283 выборе используется принцип похожий на селекторы C<CSS>, основывающийся на именах ресурсов и их типах
e743a8481327 Added REST support for forms (with only get and post methods)
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diff changeset
284 данных.
e743a8481327 Added REST support for forms (with only get and post methods)
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285
285
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
286 Данный обработчик понимает определенные свойства контекста:
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
287
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
288 =over
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
289
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
290 =item * C<resourceLocation>
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 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
293 для которого строится представление. Эта информация будет доступна в шаблоне
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
294 через свойство документа C<location>.
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
295
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
296 =item * C<environment>
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
297
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
298 В данном совойстве контекста передается дополнительная информация об окружении
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
299 ресурса, например, которую задали родительские ресурсы. Использование данного
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
300 свойства позволяет не загромождать ресурс реализацией функциональности по
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
301 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
302 формировать контекст только по необходимости, при этом указанная функция будет
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
303 выполнена только один раз, при первом обращении.
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
304
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
305 =back
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
306
199
e743a8481327 Added REST support for forms (with only get and post methods)
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307 =head1 SELECTORS
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308
e743a8481327 Added REST support for forms (with only get and post methods)
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309 =begin text
e743a8481327 Added REST support for forms (with only get and post methods)
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310
285
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
311 syntax::= selector => template
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
312
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
313 selector::= ([>]segment-template[@class-name])
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
314
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
315 segment-template::= {'{'name:regular-expr'}'|segment-name}
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
316
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
317 name::= \w+
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
318
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
319 segment-name::= \S+
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
320
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
321 class-name::= name[(::name)]
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
322
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
323 url-template@class => template
199
e743a8481327 Added REST support for forms (with only get and post methods)
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324
206
c8fe3f84feba +IMPL::Web::Handlers::ViewSelector
sergey
parents: 205
diff changeset
325 shoes => product/list
285
546957c50a36 *IMPL::Web::Handler::TTView Reworked template selection mechanism
cin
parents: 281
diff changeset
326 /shop//{action:*.}@My::Data::Product => product/{action}
199
e743a8481327 Added REST support for forms (with only get and post methods)
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diff changeset
327
206
c8fe3f84feba +IMPL::Web::Handlers::ViewSelector
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diff changeset
328 stuff >list => product/list
204
d63f9a92d6d4 +IMPL::Config::Include - simple way to include external config
sergey
parents: 203
diff changeset
329 details => product/details
203
68a59c3358ff Implemented templates selection mechanism
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parents: 200
diff changeset
330
199
e743a8481327 Added REST support for forms (with only get and post methods)
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331 =end text
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332
e743a8481327 Added REST support for forms (with only get and post methods)
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333
e743a8481327 Added REST support for forms (with only get and post methods)
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diff changeset
334 =cut
e743a8481327 Added REST support for forms (with only get and post methods)
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335