line |
stmt |
bran |
cond |
sub |
pod |
time |
code |
1
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package Fey::Schema; |
2
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3
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26
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26
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146
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use strict; |
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45
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26
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1050
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4
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26
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26
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119
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use warnings; |
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26
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37
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26
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780
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5
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26
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26
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131
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use namespace::autoclean; |
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26
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38
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26
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213
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6
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7
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our $VERSION = '0.42'; |
8
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9
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26
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26
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2309
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use Fey::Exceptions qw( param_error ); |
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26
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42
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26
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1548
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10
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26
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26
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123
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use Fey::NamedObjectSet; |
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26
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36
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26
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422
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11
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26
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26
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9089
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use Fey::SQL; |
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26
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73
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26
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844
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12
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26
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26
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147
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use Fey::Table; |
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26
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43
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26
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691
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13
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use Fey::Types |
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26
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26
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156
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qw( FK HashRef NamedObjectSet Str Table TableLikeOrName TableOrName ); |
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37
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26
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109
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15
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26
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26
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284004
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use Scalar::Util qw( blessed ); |
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26
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142
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26
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1824
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16
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17
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26
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26
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134
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use Moose 0.90; |
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26
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705
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26
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193
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18
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26
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26
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137239
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use MooseX::Params::Validate 0.08 qw( pos_validated_list ); |
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26
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803
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26
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166
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19
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26
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26
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4858
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use MooseX::SemiAffordanceAccessor 0.03; |
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26
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471
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26
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174
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20
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26
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26
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76870
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use MooseX::StrictConstructor 0.07; |
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26
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1831
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26
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202
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21
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22
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has 'name' => ( |
23
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is => 'rw', |
24
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isa => Str, |
25
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required => 1, |
26
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); |
27
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28
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has '_tables' => ( |
29
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is => 'ro', |
30
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isa => NamedObjectSet, |
31
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default => sub { return Fey::NamedObjectSet->new() }, |
32
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handles => { |
33
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tables => 'objects', |
34
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table => 'object', |
35
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}, |
36
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init_arg => undef, |
37
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); |
38
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39
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has '_fks' => ( |
40
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is => 'ro', |
41
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isa => HashRef, |
42
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default => sub { {} }, |
43
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init_arg => undef, |
44
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); |
45
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46
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sub add_table { |
47
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221
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221
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1
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2515
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my $self = shift; |
48
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221
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1109
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my ($table) = pos_validated_list( \@_, { isa => Table } ); |
49
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50
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221
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82483
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my $name = $table->name(); |
51
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221
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100
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1122
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param_error "The schema already contains a table named $name." |
52
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if $self->table($name); |
53
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54
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220
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31479
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$self->_tables->add($table); |
55
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56
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220
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6922
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$table->_set_schema($self); |
57
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58
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220
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646
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return $self; |
59
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} |
60
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61
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sub remove_table { |
62
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3
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3
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1
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650
|
my $self = shift; |
63
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3
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15
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my ($table) |
64
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= pos_validated_list( \@_, { isa => TableOrName } ); |
65
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66
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3
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100
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64
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$table = $self->table($table) |
67
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unless blessed $table; |
68
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69
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3
|
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206
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for my $fk ( $self->foreign_keys_for_table($table) ) { |
70
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1
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4
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$self->remove_foreign_key($fk); |
71
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} |
72
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73
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3
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65
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$self->_tables()->delete($table); |
74
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75
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3
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89
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$table->_set_schema(undef); |
76
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77
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3
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6
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return $self; |
78
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} |
79
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80
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sub add_foreign_key { |
81
|
140
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140
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1
|
1069
|
my $self = shift; |
82
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140
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552
|
my ($fk) = pos_validated_list( \@_, { isa => FK } ); |
83
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84
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140
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53393
|
my $fk_id = $fk->id(); |
85
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86
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140
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3027
|
my $source_table_name = $fk->source_table()->name(); |
87
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88
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140
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208
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for my $col_name ( map { $_->name() } @{ $fk->source_columns() } ) { |
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140
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3097
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140
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3103
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|
89
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140
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3071
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$self->_fks()->{$source_table_name}{$col_name}{$fk_id} = $fk; |
90
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} |
91
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92
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140
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3019
|
my $target_table_name = $fk->target_table()->name(); |
93
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94
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140
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220
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for my $col_name ( map { $_->name() } @{ $fk->target_columns() } ) { |
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140
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3049
|
|
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140
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3307
|
|
95
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140
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|
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|
3082
|
$self->_fks()->{$target_table_name}{$col_name}{$fk_id} = $fk; |
96
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} |
97
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98
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140
|
|
|
|
|
468
|
return $self; |
99
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} |
100
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101
|
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|
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sub remove_foreign_key { |
102
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4
|
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4
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1
|
2423
|
my $self = shift; |
103
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4
|
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24
|
my ($fk) = pos_validated_list( \@_, { isa => FK } ); |
104
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105
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4
|
|
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1767
|
my $fk_id = $fk->id(); |
106
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107
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4
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104
|
my $source_table_name = $fk->source_table()->name(); |
108
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4
|
|
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7
|
for my $col_name ( map { $_->name() } @{ $fk->source_columns() } ) { |
|
4
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105
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4
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104
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109
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4
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88
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delete $self->_fks()->{$source_table_name}{$col_name}{$fk_id}; |
110
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} |
111
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112
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4
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83
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my $target_table_name = $fk->target_table()->name(); |
113
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4
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10
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for my $col_name ( map { $_->name() } @{ $fk->target_columns() } ) { |
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4
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117
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4
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86
|
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114
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4
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82
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delete $self->_fks()->{$target_table_name}{$col_name}{$fk_id}; |
115
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} |
116
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117
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4
|
|
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|
36
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return $self; |
118
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} |
119
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120
|
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|
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|
|
sub foreign_keys_for_table { |
121
|
12
|
|
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12
|
1
|
615
|
my $self = shift; |
122
|
12
|
|
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|
46
|
my ($table) |
123
|
|
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|
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|
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= pos_validated_list( \@_, { isa => TableOrName } ); |
124
|
|
|
|
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|
|
125
|
12
|
100
|
|
|
|
388
|
my $name = blessed $table ? $table->name() : $table; |
126
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127
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8
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171
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my %fks = ( |
128
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11
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232
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map { $_->id() => $_ } |
129
|
11
|
100
|
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|
11
|
map { values %{ $self->_fks()->{$name}{$_} } } |
|
12
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295
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130
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12
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22
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keys %{ $self->_fks()->{$name} || {} } |
131
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); |
132
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133
|
12
|
|
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|
52
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return values %fks; |
134
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} |
135
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136
|
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|
|
sub foreign_keys_between_tables { |
137
|
43
|
|
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43
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1
|
1221
|
my $self = shift; |
138
|
43
|
|
|
|
|
253
|
my ( $table1, $table2 ) = pos_validated_list( |
139
|
|
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\@_, |
140
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|
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{ isa => TableLikeOrName }, |
141
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|
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{ isa => TableLikeOrName } |
142
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|
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|
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); |
143
|
|
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|
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|
|
144
|
43
|
100
|
|
|
|
3061
|
my $name1 |
|
|
100
|
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145
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|
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= !blessed $table1 ? $table1 |
146
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|
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: $table1->isa('Fey::Table') ? $table1->name() |
147
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|
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: $table1->table()->name(); |
148
|
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|
149
|
43
|
100
|
|
|
|
984
|
my $name2 |
|
|
100
|
|
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150
|
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|
|
= !blessed $table2 ? $table2 |
151
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|
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: $table2->isa('Fey::Table') ? $table2->name() |
152
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|
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: $table2->table()->name(); |
153
|
|
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154
|
40
|
|
|
|
|
827
|
my %fks = ( |
155
|
73
|
|
|
|
|
252
|
map { $_->id() => $_ } |
156
|
49
|
|
|
|
|
1026
|
grep { $_->has_tables( $name1, $name2 ) } |
157
|
49
|
100
|
|
|
|
66
|
map { values %{ $self->_fks()->{$name1}{$_} } } |
|
43
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|
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|
|
953
|
|
158
|
43
|
|
|
|
|
72
|
keys %{ $self->_fks()->{$name1} || {} } |
159
|
|
|
|
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|
|
); |
160
|
|
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|
|
|
|
|
161
|
86
|
100
|
|
|
|
419
|
return values %fks |
162
|
43
|
100
|
|
|
|
90
|
unless grep { blessed $_ && $_->is_alias() } $table1, $table2; |
163
|
|
|
|
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|
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164
|
5
|
50
|
|
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|
21
|
$table1 = $self->table($name1) |
165
|
|
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|
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|
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unless blessed $table1; |
166
|
|
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|
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|
167
|
5
|
100
|
|
|
|
31
|
$table2 = $self->table($name2) |
168
|
|
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|
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|
|
unless blessed $table2; |
169
|
|
|
|
|
|
|
|
170
|
5
|
|
|
|
|
116
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my @fks; |
171
|
|
|
|
|
|
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|
172
|
5
|
|
|
|
|
18
|
for my $fk ( values %fks ) { |
173
|
1
|
|
|
|
|
24
|
my %p |
174
|
|
|
|
|
|
|
= $table1->name() eq $fk->source_table()->name() |
175
|
|
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|
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|
|
? ( |
176
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|
|
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|
|
source_columns => [ |
177
|
|
|
|
|
|
|
$table1->columns( |
178
|
1
|
|
|
|
|
22
|
map { $_->name() } @{ $fk->source_columns() } |
|
1
|
|
|
|
|
50
|
|
179
|
|
|
|
|
|
|
) |
180
|
|
|
|
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|
|
], |
181
|
|
|
|
|
|
|
target_columns => [ |
182
|
|
|
|
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|
|
$table2->columns( |
183
|
1
|
|
|
|
|
33
|
map { $_->name() } @{ $fk->target_columns() } |
|
4
|
|
|
|
|
117
|
|
184
|
|
|
|
|
|
|
) |
185
|
|
|
|
|
|
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], |
186
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|
|
|
|
|
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) |
187
|
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: ( |
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source_columns => [ |
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$table2->columns( |
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map { $_->name() } @{ $fk->source_columns() } |
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) |
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], |
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target_columns => [ |
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$table1->columns( |
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map { $_->name() } @{ $fk->target_columns() } |
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) |
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], |
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push @fks, Fey::FK->new(%p); |
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} |
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} |
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__PACKAGE__->meta()->make_immutable(); |
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1; |
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# ABSTRACT: Represents a schema and contains tables and foreign keys |
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__END__ |
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=pod |
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=head1 NAME |
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Fey::Schema - Represents a schema and contains tables and foreign keys |
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=head1 VERSION |
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version 0.42 |
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=head1 SYNOPSIS |
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my $schema = Fey::Schema->new( name => 'MySchema' ); |
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$schema->add_table(...); |
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$schema->add_foreign_key(...); |
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=head1 DESCRIPTION |
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This class represents a schema, which is a set of tables and foreign |
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keys. |
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=head1 METHODS |
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This class provides the following methods: |
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=head2 Fey::Schema->new() |
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my $schema = Fey::Schema->new( name => 'MySchema' ); |
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This method constructs a new C<Fey::Schema> object. It takes the |
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following parameters: |
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=over 4 |
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=item * name - required |
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The name of the schema. |
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=back |
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=head2 $schema->name() |
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Returns the name of the schema. |
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=head2 $schema->add_table($table) |
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Adds the specified table to the schema. The table must be a |
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C<Fey::Table> object. Adding the table to the schema sets the schema |
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for the table, so that C<< $table->schema() >> returns the correct |
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object. |
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If the table is already part of the schema, an exception will be |
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thrown. |
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=head2 $schema->remove_table($table) |
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Remove the specified table from the schema. Removing the table also |
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removes any foreign keys which reference the table. Removing the table |
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unsets the schema for the table. |
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The table can be specified either by name or by passing in a |
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C<Fey::Table> object. |
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=head2 $schema->table($name) |
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Returns the table with the specified name. If no such table exists, |
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this method returns false. |
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284
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=head2 $schema->tables() |
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286
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=head2 $schema->tables(@names) |
287
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288
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When this method is called with no arguments, it returns all of the tables in |
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the schema. Tables are returned in the order with which they were added to the |
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schema. |
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292
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If given a list of names, it returns only the specified tables. If a name is |
293
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given which doesn't match a table in the schema, then it is ignored. |
294
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295
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=head2 $schema->add_foreign_key($fk) |
296
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297
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Adds the specified to the schema. The foreign key must be a C<Fey::FK> |
298
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object. |
299
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300
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If the foreign key references tables which are not in the schema, an |
301
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exception will be thrown. |
302
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303
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=head2 $schema->remove_foreign_key($fk) |
304
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305
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Removes the specified foreign key from the schema. The foreign key |
306
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must be a C<Fey::FK> object. |
307
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308
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=head2 $schema->foreign_keys_for_table($table) |
309
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310
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Returns all the foreign keys which reference the specified table. The |
311
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table can be specified as a name or a C<Fey::Table> object. |
312
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313
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=head2 $schema->foreign_keys_between_tables( $source_table, $target_table ) |
314
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315
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Returns all the foreign keys which reference both tables. The tables |
316
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can be specified as names, C<Fey::Table> objects, or |
317
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C<Fey::Table::Alias> objects. If you provide any aliases, the foreign |
318
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|
keys returned will contain columns from those aliases, not the real |
319
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|
tables. This provides support for joining an alias in a SQL statement. |
320
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321
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|
=head1 BUGS |
322
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323
|
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|
See L<Fey> for details on how to report bugs. |
324
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325
|
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|
|
=head1 AUTHOR |
326
|
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|
|
327
|
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|
|
|
|
Dave Rolsky <autarch@urth.org> |
328
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329
|
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|
|
=head1 COPYRIGHT AND LICENSE |
330
|
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331
|
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|
|
This software is Copyright (c) 2011 - 2015 by Dave Rolsky. |
332
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333
|
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|
This is free software, licensed under: |
334
|
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335
|
|
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|
|
The Artistic License 2.0 (GPL Compatible) |
336
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337
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|
=cut |