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1 | package DBIx::Class::Schema::Loader::DBI::SQLAnywhere; |
2 | |
3 | use strict; |
4 | use warnings; |
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5 | use Class::C3; |
6 | use base qw/ |
7 | DBIx::Class::Schema::Loader::DBI::Component::QuotedDefault |
8 | DBIx::Class::Schema::Loader::DBI |
9 | /; |
10 | use Carp::Clan qw/^DBIx::Class/; |
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11 | |
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12 | our $VERSION = '0.07000'; |
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13 | |
14 | =head1 NAME |
15 | |
16 | DBIx::Class::Schema::Loader::DBI::SQLAnywhere - DBIx::Class::Schema::Loader::DBI |
17 | SQL Anywhere Implementation. |
18 | |
19 | =head1 DESCRIPTION |
20 | |
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21 | See L<DBIx::Class::Schema::Loader> and L<DBIx::Class::Schema::Loader::Base>. |
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22 | |
23 | =cut |
24 | |
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25 | sub _setup { |
26 | my $self = shift; |
27 | |
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28 | $self->next::method(@_); |
29 | |
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30 | $self->{db_schema} ||= |
31 | ($self->schema->storage->dbh->selectrow_array('select user'))[0]; |
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32 | |
33 | if (not defined $self->preserve_case) { |
34 | $self->preserve_case(0); |
35 | } |
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36 | } |
37 | |
38 | sub _tables_list { |
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39 | my ($self, $opts) = @_; |
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40 | |
41 | my $dbh = $self->schema->storage->dbh; |
42 | my $sth = $dbh->prepare(<<'EOF'); |
43 | select t.table_name from systab t |
44 | join sysuser u on u.user_id = t.creator |
45 | where u.user_name = ? |
46 | EOF |
47 | $sth->execute($self->db_schema); |
48 | |
49 | my @tables = map @$_, @{ $sth->fetchall_arrayref }; |
50 | |
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51 | return $self->_filter_tables(\@tables, $opts); |
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52 | } |
53 | |
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54 | sub _columns_info_for { |
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55 | my $self = shift; |
56 | my ($table) = @_; |
57 | |
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58 | my $result = $self->next::method(@_); |
59 | |
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60 | my $dbh = $self->schema->storage->dbh; |
61 | |
62 | while (my ($column, $info) = each %$result) { |
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63 | my $def = $info->{default_value}; |
64 | if (ref $def eq 'SCALAR' && $$def eq 'autoincrement') { |
65 | delete $info->{default_value}; |
66 | $info->{is_auto_increment} = 1; |
67 | } |
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68 | |
69 | my ($user_type) = $dbh->selectrow_array(<<'EOF', {}, $table, lc $column); |
70 | SELECT ut.type_name |
71 | FROM systabcol tc |
72 | JOIN systab t ON tc.table_id = t.table_id |
73 | JOIN sysusertype ut on tc.user_type = ut.type_id |
74 | WHERE t.table_name = ? AND lower(tc.column_name) = ? |
75 | EOF |
76 | $info->{data_type} = $user_type if defined $user_type; |
77 | |
78 | if ($info->{data_type} eq 'double') { |
79 | $info->{data_type} = 'double precision'; |
80 | } |
81 | |
82 | if ($info->{data_type} =~ /^(?:char|varchar|binary|varbinary)\z/ && ref($info->{size}) eq 'ARRAY') { |
83 | $info->{size} = $info->{size}[0]; |
84 | } |
85 | elsif ($info->{data_type} !~ /^(?:char|varchar|binary|varbinary|numeric|decimal)\z/) { |
86 | delete $info->{size}; |
87 | } |
88 | |
89 | my $sth = $dbh->prepare(<<'EOF'); |
90 | SELECT tc.width, tc.scale |
91 | FROM systabcol tc |
92 | JOIN systab t ON t.table_id = tc.table_id |
93 | WHERE t.table_name = ? AND lower(tc.column_name) = ? |
94 | EOF |
95 | $sth->execute($table, lc $column); |
96 | my ($width, $scale) = $sth->fetchrow_array; |
97 | $sth->finish; |
98 | |
99 | if ($info->{data_type} =~ /^(?:numeric|decimal)\z/) { |
100 | # We do not check for the default precision/scale, because they can be changed as PUBLIC database options. |
101 | $info->{size} = [$width, $scale]; |
102 | } |
103 | elsif ($info->{data_type} =~ /^(?:n(?:varchar|char) | varbit)\z/x) { |
104 | $info->{size} = $width; |
105 | } |
106 | |
107 | delete $info->{default_value} if ref($info->{default_value}) eq 'SCALAR' && ${ $info->{default_value} } eq 'NULL'; |
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108 | |
109 | if (eval { lc ${ $info->{default_value} } }||'' eq 'current timestamp') { |
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110 | ${ $info->{default_value} } = 'current_timestamp'; |
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111 | } |
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112 | } |
113 | |
114 | return $result; |
115 | } |
116 | |
117 | sub _table_pk_info { |
118 | my ($self, $table) = @_; |
119 | my $dbh = $self->schema->storage->dbh; |
120 | local $dbh->{FetchHashKeyName} = 'NAME_lc'; |
121 | my $sth = $dbh->prepare(qq{sp_pkeys ?}); |
122 | $sth->execute($table); |
123 | |
124 | my @keydata; |
125 | |
126 | while (my $row = $sth->fetchrow_hashref) { |
127 | push @keydata, lc $row->{column_name}; |
128 | } |
129 | |
130 | return \@keydata; |
131 | } |
132 | |
133 | sub _table_fk_info { |
134 | my ($self, $table) = @_; |
135 | |
136 | my ($local_cols, $remote_cols, $remote_table, @rels); |
137 | my $dbh = $self->schema->storage->dbh; |
138 | my $sth = $dbh->prepare(<<'EOF'); |
139 | select fki.index_name fk_name, fktc.column_name local_column, pkt.table_name remote_table, pktc.column_name remote_column |
140 | from sysfkey fk |
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141 | join systab pkt on fk.primary_table_id = pkt.table_id |
142 | join systab fkt on fk.foreign_table_id = fkt.table_id |
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143 | join sysidx pki on fk.primary_table_id = pki.table_id and fk.primary_index_id = pki.index_id |
144 | join sysidx fki on fk.foreign_table_id = fki.table_id and fk.foreign_index_id = fki.index_id |
145 | join sysidxcol fkic on fkt.table_id = fkic.table_id and fki.index_id = fkic.index_id |
146 | join systabcol pktc on pkt.table_id = pktc.table_id and fkic.primary_column_id = pktc.column_id |
147 | join systabcol fktc on fkt.table_id = fktc.table_id and fkic.column_id = fktc.column_id |
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148 | where fkt.table_name = ? |
149 | EOF |
150 | $sth->execute($table); |
151 | |
152 | while (my ($fk, $local_col, $remote_tab, $remote_col) = $sth->fetchrow_array) { |
153 | push @{$local_cols->{$fk}}, lc $local_col; |
154 | push @{$remote_cols->{$fk}}, lc $remote_col; |
155 | $remote_table->{$fk} = lc $remote_tab; |
156 | } |
157 | |
158 | foreach my $fk (keys %$remote_table) { |
159 | push @rels, { |
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160 | local_columns => $local_cols->{$fk}, |
161 | remote_columns => $remote_cols->{$fk}, |
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162 | remote_table => $remote_table->{$fk}, |
163 | }; |
164 | } |
165 | return \@rels; |
166 | } |
167 | |
168 | sub _table_uniq_info { |
169 | my ($self, $table) = @_; |
170 | |
171 | my $dbh = $self->schema->storage->dbh; |
172 | my $sth = $dbh->prepare(<<'EOF'); |
173 | select c.constraint_name, tc.column_name |
174 | from sysconstraint c |
175 | join systab t on c.table_object_id = t.object_id |
176 | join sysidx i on c.ref_object_id = i.object_id |
177 | join sysidxcol ic on i.table_id = ic.table_id and i.index_id = ic.index_id |
178 | join systabcol tc on ic.table_id = tc.table_id and ic.column_id = tc.column_id |
179 | where c.constraint_type = 'U' and t.table_name = ? |
180 | EOF |
181 | $sth->execute($table); |
182 | |
183 | my $constraints; |
184 | while (my ($constraint_name, $column) = $sth->fetchrow_array) { |
185 | push @{$constraints->{$constraint_name}}, lc $column; |
186 | } |
187 | |
188 | my @uniqs = map { [ $_ => $constraints->{$_} ] } keys %$constraints; |
189 | return \@uniqs; |
190 | } |
191 | |
192 | =head1 SEE ALSO |
193 | |
194 | L<DBIx::Class::Schema::Loader>, L<DBIx::Class::Schema::Loader::Base>, |
195 | L<DBIx::Class::Schema::Loader::DBI> |
196 | |
197 | =head1 AUTHOR |
198 | |
199 | See L<DBIx::Class::Schema::Loader/AUTHOR> and L<DBIx::Class::Schema::Loader/CONTRIBUTORS>. |
200 | |
201 | =head1 LICENSE |
202 | |
203 | This library is free software; you can redistribute it and/or modify it under |
204 | the same terms as Perl itself. |
205 | |
206 | =cut |
207 | |
208 | 1; |
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209 | # vim:et sw=4 sts=4 tw=0: |