annotate Lib/IMPL/ORM/Object.pm @ 194:4d0e1962161c

Replaced tabs with spaces IMPL::Web::View - fixed document model, new features (control classes, document constructor parameters)
author cin
date Tue, 10 Apr 2012 20:08:29 +0400
parents d1676be8afcc
children 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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5 use parent qw(IMPL::Object);
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6 use IMPL::Class::Property;
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7 use IMPL::Class::Property::Direct;
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8
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9 require IMPL::ORM::Entity;
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10 require IMPL::ORM::Schema::Entity;
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11 require IMPL::ORM::Schema::Field;
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12 require IMPL::ORM::Schema::Relation::HasMany;
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13 require IMPL::ORM::Schema::Relation::HasOne;
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14 require IMPL::ORM::Schema::Relation::Subclass;
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15
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16 BEGIN {
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17 private _direct property _entities => prop_all;
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18 public property objectType => prop_all, {type => 'String'};
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19
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20 sub _PropertyImplementor {
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21 'IMPL::ORM::PropertyImplementor'
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22 }
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23 }
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24
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25 my %schemaCache;
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26
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27 sub CTOR {
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28 my ($this) = @_;
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29
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30 while ( my ($class,$schema) = $this->ormGetSchema ) {
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31 $this->{$_entities}{$class} = new IMPL::ORM::Entity($class,$schema);
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32 }
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33 }
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34
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35 sub ormStore {
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36 my ($this,$class,$prop,$value) = @_;
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37
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38 die IMPL::InvalidOperationException("Cannot find entity for the specified class",$class) unless $this->{$_entities}{$class};
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39
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40 $this->{$_entities}{$class}->Store($prop,$value);
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41 }
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42
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43 sub ormGet {
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44 my ($this,$class,$prop,$value) = @_;
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45
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46 return $this->{$_entities}{$class} ? $this->{$_entities}{$class}->Get($prop,$value) : undef;
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47 }
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48
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49 sub entityName {
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50 (my $self = ref $_[0] || $_[0]) =~ s/^.*?(\w+)$/$1/;
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51 return $self;
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52 }
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53
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54 sub ormGetSchema {
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55 my ($self,$dataSchema,$surrogate) = @_;
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56
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57 my $schema = $surrogate || IMPL::ORM::Schema::Entity->new($self->entityName);
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58
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59 # для текущего класса, проходим по всем свойствам
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60 foreach my $ormProp (
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61 $self->get_meta(
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62 'IMPL::Class::PropertyInfo',
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63 sub {
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64 UNIVERSAL::isa($_->Implementor, 'IMPL::ORM::PropertyImplementor' )
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65 },
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66 0
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67 )
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68 ){
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69 if ($ormProp->Mutators & prop_list) {
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70 # отношение 1 ко многим
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71 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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72 $schema->appendChild( new IMPL::ORM::Schema::Relation::HasMany($ormProp->Name, $type->entityName) );
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73 } elsif (my $type = $dataSchema->isValueType($ormProp->Type)) {
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74 # поле
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75 $schema->appendChild( new IMPL::ORM::Schema::Field($ormProp->Name,$ormProp->Type) );
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76 } elsif (my $entity = $dataSchema->resolveType($ormProp->Type)) {
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77 # отношение ссылка
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78 $schema->appendChild( new IMPL::ORM::Schema::Relation::HasOne($ormProp->Name,$entity->entityName));
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79 } else {
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80 # хз что. Скорее всего не удалось квалифицировать тип свойства не как ссылочный и как поле.
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81 die new IMPL::Exception('Uexpected error due building schema for a class', $ormProp->Class, $ormProp->Name,$ormProp->Type);
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82 }
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83 }
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84
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85 # Формируем отношения наследования
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86 {
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87 # локализуем прагму
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88 no strict 'refs';
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89
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90 my $class = ref $self || $self;
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91
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92 # по всем классам
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93 foreach my $super (grep $_->isa(__PACKAGE__), @{"${class}::ISA"}) {
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94 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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95 $schema->appendChild(new IMPL::ORM::Schema::Relation::Subclass($type));
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96 }
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97 }
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98
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99 return $schema;
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100 }
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101
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102 1;
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103
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104 __END__
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105
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106 =pod
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107
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108 =head1 DESCRIPTION
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109
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110 Базовый объект для реляционного отображения,
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111 содержит в себе реляционные записи представляющие данный объект.
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112
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113 Каждый класс отображается в определенную сущность. Сущности хранят
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114 состояние объектов в том виде в котором удобно записывать в реляционную базу.
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115
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116 =cut