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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 = '0.06001'; |
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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 | |
21 | See L<DBIx::Class::Schema::Loader::Base>. |
22 | |
23 | =cut |
24 | |
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25 | sub _setup { |
26 | my $self = shift; |
27 | |
28 | $self->{db_schema} ||= |
29 | ($self->schema->storage->dbh->selectrow_array('select user'))[0]; |
30 | } |
31 | |
32 | sub _tables_list { |
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33 | my ($self, $opts) = @_; |
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34 | |
35 | my $dbh = $self->schema->storage->dbh; |
36 | my $sth = $dbh->prepare(<<'EOF'); |
37 | select t.table_name from systab t |
38 | join sysuser u on u.user_id = t.creator |
39 | where u.user_name = ? |
40 | EOF |
41 | $sth->execute($self->db_schema); |
42 | |
43 | my @tables = map @$_, @{ $sth->fetchall_arrayref }; |
44 | |
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45 | return $self->_filter_tables(\@tables, $opts); |
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46 | } |
47 | |
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48 | sub _columns_info_for { |
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49 | my $self = shift; |
50 | my ($table) = @_; |
51 | |
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52 | my $result = $self->next::method(@_); |
53 | |
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54 | my $dbh = $self->schema->storage->dbh; |
55 | |
56 | while (my ($column, $info) = each %$result) { |
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57 | my $def = $info->{default_value}; |
58 | if (ref $def eq 'SCALAR' && $$def eq 'autoincrement') { |
59 | delete $info->{default_value}; |
60 | $info->{is_auto_increment} = 1; |
61 | } |
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62 | |
63 | my ($user_type) = $dbh->selectrow_array(<<'EOF', {}, $table, lc $column); |
64 | SELECT ut.type_name |
65 | FROM systabcol tc |
66 | JOIN systab t ON tc.table_id = t.table_id |
67 | JOIN sysusertype ut on tc.user_type = ut.type_id |
68 | WHERE t.table_name = ? AND lower(tc.column_name) = ? |
69 | EOF |
70 | $info->{data_type} = $user_type if defined $user_type; |
71 | |
72 | if ($info->{data_type} eq 'double') { |
73 | $info->{data_type} = 'double precision'; |
74 | } |
75 | |
76 | if ($info->{data_type} =~ /^(?:char|varchar|binary|varbinary)\z/ && ref($info->{size}) eq 'ARRAY') { |
77 | $info->{size} = $info->{size}[0]; |
78 | } |
79 | elsif ($info->{data_type} !~ /^(?:char|varchar|binary|varbinary|numeric|decimal)\z/) { |
80 | delete $info->{size}; |
81 | } |
82 | |
83 | my $sth = $dbh->prepare(<<'EOF'); |
84 | SELECT tc.width, tc.scale |
85 | FROM systabcol tc |
86 | JOIN systab t ON t.table_id = tc.table_id |
87 | WHERE t.table_name = ? AND lower(tc.column_name) = ? |
88 | EOF |
89 | $sth->execute($table, lc $column); |
90 | my ($width, $scale) = $sth->fetchrow_array; |
91 | $sth->finish; |
92 | |
93 | if ($info->{data_type} =~ /^(?:numeric|decimal)\z/) { |
94 | # We do not check for the default precision/scale, because they can be changed as PUBLIC database options. |
95 | $info->{size} = [$width, $scale]; |
96 | } |
97 | elsif ($info->{data_type} =~ /^(?:n(?:varchar|char) | varbit)\z/x) { |
98 | $info->{size} = $width; |
99 | } |
100 | |
101 | delete $info->{default_value} if ref($info->{default_value}) eq 'SCALAR' && ${ $info->{default_value} } eq 'NULL'; |
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102 | |
103 | if (eval { lc ${ $info->{default_value} } }||'' eq 'current timestamp') { |
104 | ${ $info->{default_value} } = 'CURRENT_TIMESTAMP'; |
105 | } |
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106 | } |
107 | |
108 | return $result; |
109 | } |
110 | |
111 | sub _table_pk_info { |
112 | my ($self, $table) = @_; |
113 | my $dbh = $self->schema->storage->dbh; |
114 | local $dbh->{FetchHashKeyName} = 'NAME_lc'; |
115 | my $sth = $dbh->prepare(qq{sp_pkeys ?}); |
116 | $sth->execute($table); |
117 | |
118 | my @keydata; |
119 | |
120 | while (my $row = $sth->fetchrow_hashref) { |
121 | push @keydata, lc $row->{column_name}; |
122 | } |
123 | |
124 | return \@keydata; |
125 | } |
126 | |
127 | sub _table_fk_info { |
128 | my ($self, $table) = @_; |
129 | |
130 | my ($local_cols, $remote_cols, $remote_table, @rels); |
131 | my $dbh = $self->schema->storage->dbh; |
132 | my $sth = $dbh->prepare(<<'EOF'); |
133 | select fki.index_name fk_name, fktc.column_name local_column, pkt.table_name remote_table, pktc.column_name remote_column |
134 | from sysfkey fk |
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135 | join systab pkt on fk.primary_table_id = pkt.table_id |
136 | join systab fkt on fk.foreign_table_id = fkt.table_id |
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137 | join sysidx pki on fk.primary_table_id = pki.table_id and fk.primary_index_id = pki.index_id |
138 | join sysidx fki on fk.foreign_table_id = fki.table_id and fk.foreign_index_id = fki.index_id |
139 | join sysidxcol fkic on fkt.table_id = fkic.table_id and fki.index_id = fkic.index_id |
140 | join systabcol pktc on pkt.table_id = pktc.table_id and fkic.primary_column_id = pktc.column_id |
141 | join systabcol fktc on fkt.table_id = fktc.table_id and fkic.column_id = fktc.column_id |
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142 | where fkt.table_name = ? |
143 | EOF |
144 | $sth->execute($table); |
145 | |
146 | while (my ($fk, $local_col, $remote_tab, $remote_col) = $sth->fetchrow_array) { |
147 | push @{$local_cols->{$fk}}, lc $local_col; |
148 | push @{$remote_cols->{$fk}}, lc $remote_col; |
149 | $remote_table->{$fk} = lc $remote_tab; |
150 | } |
151 | |
152 | foreach my $fk (keys %$remote_table) { |
153 | push @rels, { |
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154 | local_columns => $local_cols->{$fk}, |
155 | remote_columns => $remote_cols->{$fk}, |
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156 | remote_table => $remote_table->{$fk}, |
157 | }; |
158 | } |
159 | return \@rels; |
160 | } |
161 | |
162 | sub _table_uniq_info { |
163 | my ($self, $table) = @_; |
164 | |
165 | my $dbh = $self->schema->storage->dbh; |
166 | my $sth = $dbh->prepare(<<'EOF'); |
167 | select c.constraint_name, tc.column_name |
168 | from sysconstraint c |
169 | join systab t on c.table_object_id = t.object_id |
170 | join sysidx i on c.ref_object_id = i.object_id |
171 | join sysidxcol ic on i.table_id = ic.table_id and i.index_id = ic.index_id |
172 | join systabcol tc on ic.table_id = tc.table_id and ic.column_id = tc.column_id |
173 | where c.constraint_type = 'U' and t.table_name = ? |
174 | EOF |
175 | $sth->execute($table); |
176 | |
177 | my $constraints; |
178 | while (my ($constraint_name, $column) = $sth->fetchrow_array) { |
179 | push @{$constraints->{$constraint_name}}, lc $column; |
180 | } |
181 | |
182 | my @uniqs = map { [ $_ => $constraints->{$_} ] } keys %$constraints; |
183 | return \@uniqs; |
184 | } |
185 | |
186 | =head1 SEE ALSO |
187 | |
188 | L<DBIx::Class::Schema::Loader>, L<DBIx::Class::Schema::Loader::Base>, |
189 | L<DBIx::Class::Schema::Loader::DBI> |
190 | |
191 | =head1 AUTHOR |
192 | |
193 | See L<DBIx::Class::Schema::Loader/AUTHOR> and L<DBIx::Class::Schema::Loader/CONTRIBUTORS>. |
194 | |
195 | =head1 LICENSE |
196 | |
197 | This library is free software; you can redistribute it and/or modify it under |
198 | the same terms as Perl itself. |
199 | |
200 | =cut |
201 | |
202 | 1; |
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203 | # vim:et sw=4 sts=4 tw=0: |