annotate Lib/IMPL/SQL/Schema/Constraint/ForeignKey.pm @ 378:2eed076cb944

rewritten IMPL::Resources::Strings + tests
author cin
date Wed, 15 Jan 2014 17:20:54 +0400
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1 package IMPL::SQL::Schema::Constraint::ForeignKey;
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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 IMPL::lang qw(:declare is);
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6
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7 use parent qw(IMPL::SQL::Schema::Constraint);
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8
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9
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10 BEGIN {
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11 public _direct property referencedPrimaryKey => PROP_GET;
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12 public _direct property onDelete => PROP_GET;
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13 public _direct property onUpdate => PROP_GET;
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14 }
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16 __PACKAGE__->PassThroughArgs;
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17 __PACKAGE__->RegisterAlias('fk');
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19 sub CTOR {
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20 my ($this,%args) = @_;
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21
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22 die new Exception("Referenced table must be an instance of a table object") if not is($args{'referencedTable'},'IMPL::SQL::Schema::Table');
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24 die new Exception("Referenced columns must be a not empty list of columns") if not UNIVERSAL::isa($args{'referencedColumns'},'ARRAY') or not scalar(@{$args{'referencedColumns'}});
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25
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26 my @ReferencedColumns = map {IMPL::SQL::Schema::Constraint::ResolveColumn($args{'referencedTable'},$_)} @{$args{'referencedColumns'}};
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27 my $ForeingPK = $args{'referencedTable'}->primaryKey or die new Exception('The referenced table doesn\'t have a primary key');
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29 scalar (@ReferencedColumns) == $this->columns->Count or die new Exception('A foreing key columns doesn\'t match refenced columns');
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30 my @ColumnsCopy = @ReferencedColumns;
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31
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32 die new Exception('A foreing key columns doesn\'t match refenced columns') if grep { not $_->type->SameValue((shift @ColumnsCopy)->type)} @{$this->columns};
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34 @ColumnsCopy = @ReferencedColumns;
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35 die new Exception('The foreign key must match to the primary key of the referenced table',$this->name) if grep { not $_->type->SameValue(shift(@ColumnsCopy)->type)} @{$ForeingPK->columns};
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37 $this->{$referencedPrimaryKey} = $ForeingPK;
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39 $ForeingPK->ConnectFK($this);
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41 $this->onUpdate($args{onUpdate}) if $args{onUpdate};
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42 $this->onDelete($args{onDelete}) if $args{onDelete};
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43 }
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45 sub Dispose {
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46 my ($this) = @_;
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47
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48 $this->{$referencedPrimaryKey}->DisconnectFK($this) if not $this->{$referencedPrimaryKey}->isDisposed;
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49 delete $this->{$referencedPrimaryKey};
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51 $this->SUPER::Dispose;
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52 }
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53
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54 sub SameValue {
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55 my ($this,$other) = @_;
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56
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57 uc($this->onDelete || '') eq uc($other->onDelete || '')or return 0;
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58 uc($this->onUpdate || '') eq uc($other->onUpdate || '') or return 0;
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60 return $this->SUPER::SameValue($other);
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61 }
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65 1;