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annotate Lib/IMPL/Web/View/Metadata/ObjectProvider.pm @ 362:715b9959b207

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WebView: initial work on metadata providers
author cin
date Thu, 28 Nov 2013 20:00:20 +0400
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362
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1 package IMPL::Web::View::Metadata::ObjectProvider;
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2 use strict;
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3
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4 use IMPL::lang;
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5 use IMPL::declare {
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6 require => {
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7 Exception => 'IMPL::Exception',
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8 ArgException => '-IMPL::InvalidArgumentException',
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9 Meta => 'IMPL::Web::View::Metadata',
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10 PropertyInfo => 'IMPL::Class::PropertyInfo'
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11 },
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12 base => [
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13 'IMPL::Object' => undef
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14 ]
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15 };
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16
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17 sub GetMetadata {
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18 my ($this,$model) = @_;
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19
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20 my $class = typeof($model) || $model;
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21
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22 return Meta->new(
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23 type => $class,
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24 provider => $this
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25 );
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26 }
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27
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28 # returns array of metadata
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29 sub GetFields {
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30 my ($this,$class) = @_;
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31
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32 my %seen;
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33
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34 return map {
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35 my %meta = (
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36 provider => $this
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37 );
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38
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39 $meta{type} = $_->type if $_->type;
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40
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41 # TODO extend from metadata and external providers
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42
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43 return Meta->new(%meta);
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44 } $class->GetMeta(PropertyInfo, sub { $seen{$_->name} ? 0 : ($seen{$_->name} = 1) } , 1);
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45
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46 }
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47
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48 1;