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1 | package SQL::Translator::Generator::Role::DDL; |
2 | |
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3 | # AUTHOR: Arthur Axel fREW Schmidt |
4 | # Copyright: Same as Perl 5 |
5 | |
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6 | use Moo::Role; |
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7 | use SQL::Translator::Utils qw(header_comment); |
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8 | use Scalar::Util; |
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9 | |
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10 | requires '_build_type_map'; |
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11 | requires '_build_numeric_types'; |
12 | requires '_build_unquoted_defaults'; |
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13 | requires '_build_sizeless_types'; |
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14 | requires 'quote'; |
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15 | |
16 | has type_map => ( |
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17 | is => 'lazy', |
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18 | ); |
19 | |
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20 | has numeric_types => ( |
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21 | is => 'lazy', |
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22 | ); |
23 | |
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24 | has sizeless_types => ( |
25 | is => 'lazy', |
26 | ); |
27 | |
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28 | has unquoted_defaults => ( |
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29 | is => 'lazy', |
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30 | ); |
31 | |
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32 | has add_comments => ( |
33 | is => 'ro', |
34 | ); |
35 | |
36 | has add_drop_table => ( |
37 | is => 'ro', |
38 | ); |
39 | |
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40 | # would also be handy to have a required size set if there is such a thing |
41 | |
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42 | sub field_name { $_[0]->quote($_[1]->name) } |
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43 | |
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44 | sub field_comments { |
45 | ( $_[1]->comments ? ('-- ' . $_[1]->comments . "\n ") : () ) |
46 | } |
47 | |
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48 | sub table_comments { |
49 | my ($self, $table) = @_; |
50 | if ($self->add_comments) { |
51 | return ( |
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52 | "", |
53 | "--", |
54 | "-- Table: " . $self->quote($table->name) . "", |
55 | "--", |
56 | map "-- $_", $table->comments |
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57 | ) |
58 | } else { |
59 | return () |
60 | } |
61 | } |
62 | |
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63 | sub field_nullable { ($_[1]->is_nullable ? $_[0]->nullable : 'NOT NULL' ) } |
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64 | |
65 | sub field_default { |
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66 | my ($self, $field, $exceptions) = @_; |
67 | |
68 | my $default = $field->default_value; |
69 | return () if !defined $default; |
70 | |
71 | $default = \"$default" |
72 | if $exceptions and !ref $default and $exceptions->{$default}; |
73 | if (ref $default) { |
74 | $default = $$default; |
75 | } elsif (!($self->numeric_types->{lc($field->data_type)} && Scalar::Util::looks_like_number ($default))) { |
76 | $default = "'$default'"; |
77 | } |
78 | return ( "DEFAULT $default" ) |
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79 | } |
80 | |
81 | sub field_type { |
82 | my ($self, $field) = @_; |
83 | |
84 | my $field_type = $field->data_type; |
85 | ($self->type_map->{$field_type} || $field_type).$self->field_type_size($field) |
86 | } |
87 | |
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88 | sub field_type_size { |
89 | my ($self, $field) = @_; |
90 | |
91 | ($field->size && !$self->sizeless_types->{$field->data_type} |
92 | ? '(' . $field->size . ')' |
93 | : '' |
94 | ) |
95 | } |
96 | |
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97 | sub fields { |
98 | my ($self, $table) = @_; |
99 | ( map $self->field($_), $table->get_fields ) |
100 | } |
101 | |
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102 | sub indices { |
103 | my ($self, $table) = @_; |
104 | (map $self->index($_), $table->get_indices) |
105 | } |
106 | |
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107 | sub nullable { 'NULL' } |
108 | |
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109 | sub header_comments { header_comment() . "\n" if $_[0]->add_comments } |
110 | |
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111 | 1; |