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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 base 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;
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19 }
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20
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21 my %schemaCache;
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22
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23 sub CTOR {
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24 my ($this) = @_;
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25
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26 while ( my ($class,$schema) = $this->ormGetSchema ) {
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27 $this->{$_entities}{$class} = new IMPL::ORM::Entity($class,$schema);
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28 }
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29 }
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30
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31 sub ormStore {
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32 my ($this,$class,$prop,$value) = @_;
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33
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34 die IMPL::InvalidOperationException("Cannot find entity for the specified class",$class) unless $this->{$_entities}{$class};
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35
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36 $this->{$_entities}{$class}->Store($prop,$value);
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37 }
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38
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39 sub ormGet {
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40 my ($this,$class,$prop,$value) = @_;
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41
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42 return $this->{$_entities}{$class} ? $this->{$_entities}{$class}->Get($prop,$value) : undef;
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43 }
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44
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45 #sub _PropertyImplementor {
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46 # 'IMPL::ORM::Property'
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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/::/_/g;
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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) = @_;
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56
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57 my $schema = IMPL::ORM::Schema::Entity->new($self->entityName);
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58
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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::Property' )
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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 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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70 $schema->appendChild( new IMPL::ORM::Schema::Relation::HasMany($ormProp->Name, $type->entityName) );
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71 } elsif (my $type = $dataSchema->isValueType($ormProp->Type,'IMPL::ORM::Object')) {
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72 $schema->appendChild( new IMPL::ORM::Schema::Field($ormProp->Name,$type) );
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73 } elsif (my $entity = $dataSchema->resolveType($ormProp->Type)) {
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74 $schema->appendChild( new IMPL::ORM::Schema::Relation::HasOne($ormProp->Name,$entity->entityName));
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75 } else {
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76 die new IMPL::Exception('Uexpected error due building schema for a class', $ormProp->Class, $ormProp->Name);
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77 }
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78 }
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79
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80 return $schema;
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81 }
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82
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83 1;
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84
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85 __END__
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86
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87 =pod
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88
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89 =head1 DESCRIPTION
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90
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91 Базовый объект для реляционного отображения,
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92 содержит в себе реляционные записи представляющие данный объект.
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93
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94 Каждый класс отображается в определенную сущность. Сущности хранят
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95 состояние объектов в том виде в котором удобно записывать в реляционную базу.
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96
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97 =cut |
