annotate Lib/IMPL/ORM/Object.pm @ 385:0d63f5273307

sync
author sergey
date Tue, 11 Feb 2014 01:05:55 +0400
parents 4ddb27ff4a0b
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1 package IMPL::ORM::Object;
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2 use strict;
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3 use warnings;
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4
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4267a2ac3d46 Added Class::Template,
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5 use parent qw(IMPL::Object);
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6 use IMPL::Class::Property;
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7
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8 require IMPL::ORM::Entity;
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9 require IMPL::ORM::Schema::Entity;
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10 require IMPL::ORM::Schema::Field;
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11 require IMPL::ORM::Schema::Relation::HasMany;
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12 require IMPL::ORM::Schema::Relation::HasOne;
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13 require IMPL::ORM::Schema::Relation::Subclass;
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14
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15 BEGIN {
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16 private _direct property _entities => prop_all;
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17 public property objectType => prop_all, {type => 'String'};
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18
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19 sub _PropertyImplementor {
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20 'IMPL::ORM::PropertyImplementor'
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21 }
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22 }
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23
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24 my %schemaCache;
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25
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26 sub CTOR {
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27 my ($this) = @_;
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28
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29 while ( my ($class,$schema) = $this->ormGetSchema ) {
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30 $this->{$_entities}{$class} = new IMPL::ORM::Entity($class,$schema);
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31 }
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32 }
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33
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34 sub ormStore {
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35 my ($this,$class,$prop,$value) = @_;
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36
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37 die IMPL::InvalidOperationException("Cannot find entity for the specified class",$class) unless $this->{$_entities}{$class};
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38
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39 $this->{$_entities}{$class}->Store($prop,$value);
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40 }
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41
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42 sub ormGet {
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43 my ($this,$class,$prop,$value) = @_;
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44
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45 return $this->{$_entities}{$class} ? $this->{$_entities}{$class}->Get($prop,$value) : undef;
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46 }
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47
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48 sub entityName {
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49 (my $self = ref $_[0] || $_[0]) =~ s/^.*?(\w+)$/$1/;
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50 return $self;
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51 }
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52
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53 sub ormGetSchema {
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54 my ($self,$dataSchema,$surrogate) = @_;
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55
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56 my $schema = $surrogate || IMPL::ORM::Schema::Entity->new($self->entityName);
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57
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58 # для текущего класса, проходим по всем свойствам
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59 foreach my $ormProp (
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60 $self->get_meta(
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61 'IMPL::Class::PropertyInfo',
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62 sub {
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63 UNIVERSAL::isa($_->Implementor, 'IMPL::ORM::PropertyImplementor' )
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64 },
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65 0
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66 )
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67 ){
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68 if ($ormProp->Mutators & prop_list) {
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69 # отношение 1 ко многим
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70 my $type = $dataSchema->resolveType($ormProp->Type) or die new IMPL::InvalidOperationException("Failed to resolve a reference type due building schema for a class", $ormProp->Class, $ormProp->Name);
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71 $schema->appendChild( new IMPL::ORM::Schema::Relation::HasMany($ormProp->Name, $type->entityName) );
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72 } elsif (my $type = $dataSchema->isValueType($ormProp->Type)) {
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73 # поле
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74 $schema->appendChild( new IMPL::ORM::Schema::Field($ormProp->Name,$ormProp->Type) );
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75 } elsif (my $entity = $dataSchema->resolveType($ormProp->Type)) {
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76 # отношение ссылка
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77 $schema->appendChild( new IMPL::ORM::Schema::Relation::HasOne($ormProp->Name,$entity->entityName));
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78 } else {
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79 # хз что. Скорее всего не удалось квалифицировать тип свойства не как ссылочный и как поле.
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80 die new IMPL::Exception('Uexpected error due building schema for a class', $ormProp->Class, $ormProp->Name,$ormProp->Type);
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81 }
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82 }
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83
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84 # Формируем отношения наследования
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85 {
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86 # локализуем прагму
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87 no strict 'refs';
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88
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89 my $class = ref $self || $self;
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90
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91 # по всем классам
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92 foreach my $super (grep $_->isa(__PACKAGE__), @{"${class}::ISA"}) {
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93 my $type = $dataSchema->resolveType($super) or die new IMPL::InvalidOperationException("Failed to resolve a super class due building schema for a class", $class, $super);
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94 $schema->appendChild(new IMPL::ORM::Schema::Relation::Subclass($type));
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95 }
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96 }
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97
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98 return $schema;
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99 }
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100
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101 1;
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102
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103 __END__
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104
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105 =pod
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106
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107 =head1 DESCRIPTION
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108
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109 Базовый объект для реляционного отображения,
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110 содержит в себе реляционные записи представляющие данный объект.
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111
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112 Каждый класс отображается в определенную сущность. Сущности хранят
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113 состояние объектов в том виде в котором удобно записывать в реляционную базу.
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114
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115 =cut