Mercurial > pub > Impl
annotate Lib/IMPL/SQL/Schema/Constraint.pm @ 327:6cb0d4d325d7
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| author | sergey |
|---|---|
| date | Thu, 30 May 2013 20:31:37 +0400 |
| parents | 77df11605d3a |
| children |
| rev | line source |
|---|---|
| 167 | 1 package IMPL::SQL::Schema::Constraint; |
| 49 | 2 use strict; |
| 167 | 3 use warnings; |
| 4 | |
| 280 | 5 use IMPL::lang; |
| 278 | 6 use IMPL::Const qw(:prop); |
| 7 use IMPL::declare { | |
| 8 base => [ | |
| 9 'IMPL::Object' => undef, | |
| 10 'IMPL::Object::Disposable' => undef | |
| 11 ], | |
| 12 props => [ | |
| 13 name => PROP_RO | PROP_DIRECT, | |
| 14 table => PROP_RO | PROP_DIRECT, | |
| 15 columns => PROP_RO | PROP_LIST | |
| 16 ] | |
| 17 }; | |
| 167 | 18 |
| 168 | 19 my %aliases; |
| 20 | |
| 49 | 21 sub CTOR { |
| 22 my ($this,%args) = @_; | |
| 167 | 23 is( $args{table}, typeof IMPL::SQL::Schema::Table ) or |
| 194 | 24 die new IMPL::InvalidArgumentException("table argument must be a table object"); |
| 165 | 25 $this->{$name} = $args{'name'}; |
| 26 $this->{$table} = $args{'table'}; | |
| 167 | 27 $this->columns( [map { ResolveColumn($this->table,$_) } @{$args{'columns'}}] ); |
| 49 | 28 } |
| 29 | |
| 30 sub ResolveColumn { | |
| 31 my ($Table,$Column) = @_; | |
| 32 | |
|
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33 my $cn = is($Column,'IMPL::SQL::Schema::Column') ? $Column->name : $Column; |
| 49 | 34 |
| 168 | 35 my $resolved = $Table->GetColumn($cn); |
| 165 | 36 die new IMPL::InvalidOperationException("The column is not found in the table", $cn, $Table->name) if not $resolved; |
| 49 | 37 return $resolved; |
| 38 } | |
| 39 | |
| 40 sub HasColumn { | |
| 41 my ($this,@Columns) = @_; | |
| 42 | |
| 43 my %Columns = map { $_, 1} @Columns; | |
| 44 | |
| 168 | 45 return scalar(grep { $Columns{$_->name} } $this->columns ) == scalar(@Columns); |
| 49 | 46 } |
| 47 | |
| 165 | 48 sub uniqName { |
| 49 | 49 my ($this) = @_; |
| 165 | 50 return $this->{$table}->name.'_'.$this->{$name}; |
| 49 | 51 } |
| 52 | |
| 53 sub Dispose { | |
| 54 my ($this) = @_; | |
| 55 | |
| 167 | 56 $this->columns([]); |
| 57 | |
| 58 delete $$this{$table}; | |
| 59 | |
| 49 | 60 $this->SUPER::Dispose; |
| 61 } | |
| 167 | 62 |
| 63 sub SameValue { | |
| 194 | 64 my ($this,$other) = @_; |
| 65 | |
| 66 return 0 unless $this->columns->Count == $other->columns->Count; | |
| 67 | |
| 68 for ( my $i=0; $i < $this->columns->Count; $i++ ) { | |
| 69 return 0 unless $this->columns->[$i]->name eq $other->columns->[$i]->name; | |
| 70 } | |
| 71 | |
| 72 return 1; | |
| 167 | 73 } |
| 168 | 74 |
| 75 sub ResolveAlias { | |
| 194 | 76 my ($self,$alias) = @_; |
| 77 | |
|
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78 return isclass($alias, typeof IMPL::SQL::Schema::Constraint) ? $alias : $aliases{$alias}; |
| 168 | 79 } |
| 80 | |
| 81 sub RegisterAlias { | |
| 194 | 82 my ($self,$alias) = @_; |
| 83 | |
| 315 | 84 $aliases{$alias} = typeof($self); |
| 168 | 85 } |
| 86 | |
| 49 | 87 1; |