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