1 package DBIx::Class::Schema::Loader::DBI::SQLite;
6 DBIx::Class::Schema::Loader::DBI::Component::QuotedDefault
7 DBIx::Class::Schema::Loader::DBI
10 use DBIx::Class::Schema::Loader::Table ();
12 our $VERSION = '0.07017';
16 DBIx::Class::Schema::Loader::DBI::SQLite - DBIx::Class::Schema::Loader::DBI SQLite Implementation.
20 See L<DBIx::Class::Schema::Loader> and L<DBIx::Class::Schema::Loader::Base>.
26 SQLite will fail all further commands on a connection if the underlying schema
27 has been modified. Therefore, any runtime changes requiring C<rescan> also
28 require us to re-connect to the database. The C<rescan> method here handles
29 that reconnection for you, but beware that this must occur for any other open
30 sqlite connections as well.
37 $self->next::method(@_);
39 if (not defined $self->preserve_case) {
40 $self->preserve_case(0);
43 if ($self->db_schema) {
45 db_schema is not supported on SQLite, the option is implemented only for qualify_objects testing.
47 if ($self->db_schema->[0] eq '%') {
48 $self->db_schema(undef);
54 my ($self, $schema) = @_;
56 $schema->storage->disconnect if $schema->storage;
57 $self->next::method($schema);
60 sub _columns_info_for {
64 my $result = $self->next::method(@_);
66 local $self->dbh->{FetchHashKeyName} = 'NAME_lc';
68 my $sth = $self->dbh->prepare(
69 "pragma table_info(" . $self->dbh->quote_identifier($table) . ")"
72 my $cols = $sth->fetchall_hashref('name');
74 my ($num_pk, $pk_col) = (0);
75 # SQLite doesn't give us the info we need to do this nicely :(
76 # If there is exactly one column marked PK, and its type is integer,
77 # set it is_auto_increment. This isn't 100%, but it's better than the
79 while (my ($col_name, $info) = each %$result) {
80 if ($cols->{$col_name}{pk}) {
82 if (lc($cols->{$col_name}{type}) eq 'integer') {
88 while (my ($col, $info) = each %$result) {
89 if ((eval { ${ $info->{default_value} } }||'') eq 'CURRENT_TIMESTAMP') {
90 ${ $info->{default_value} } = 'current_timestamp';
92 if ($num_pk == 1 and defined $pk_col and $pk_col eq $col) {
93 $info->{is_auto_increment} = 1;
101 my ($self, $table) = @_;
103 my $sth = $self->dbh->prepare(
104 "pragma foreign_key_list(" . $self->dbh->quote_identifier($table) . ")"
109 while (my $fk = $sth->fetchrow_hashref) {
110 my $rel = $rels[ $fk->{id} ] ||= {
112 remote_columns => undef,
113 remote_table => DBIx::Class::Schema::Loader::Table->new(
115 name => $fk->{table},
116 ($self->db_schema ? (
117 schema => $self->db_schema->[0],
123 push @{ $rel->{local_columns} }, $self->_lc($fk->{from});
124 push @{ $rel->{remote_columns} }, $self->_lc($fk->{to}) if defined $fk->{to};
125 warn "This is supposed to be the same rel but remote_table changed from ",
126 $rel->{remote_table}->name, " to ", $fk->{table}
127 if $rel->{remote_table}->name ne $fk->{table};
133 sub _table_uniq_info {
134 my ($self, $table) = @_;
136 my $sth = $self->dbh->prepare(
137 "pragma index_list(" . $self->dbh->quote($table) . ")"
142 while (my $idx = $sth->fetchrow_hashref) {
143 next unless $idx->{unique};
145 my $name = $idx->{name};
147 my $get_idx_sth = $self->dbh->prepare("pragma index_info(" . $self->dbh->quote($name) . ")");
148 $get_idx_sth->execute;
150 while (my $idx_row = $get_idx_sth->fetchrow_hashref) {
151 push @cols, $self->_lc($idx_row->{name});
153 $get_idx_sth->finish;
155 # Rename because SQLite complains about sqlite_ prefixes on identifiers
156 # and ignores constraint names in DDL.
157 $name = (join '_', @cols) . '_unique';
159 push @uniqs, [ $name => \@cols ];
166 my ($self, $opts) = @_;
168 my $sth = $self->dbh->prepare("SELECT * FROM sqlite_master");
171 while ( my $row = $sth->fetchrow_hashref ) {
172 next unless $row->{type} =~ /^(?:table|view)\z/i;
173 next if $row->{tbl_name} =~ /^sqlite_/;
174 push @tables, DBIx::Class::Schema::Loader::Table->new(
176 name => $row->{tbl_name},
177 ($self->db_schema ? (
178 schema => $self->db_schema->[0],
179 ignore_schema => 1, # for qualify_objects tests
184 return $self->_filter_tables(\@tables, $opts);
189 L<DBIx::Class::Schema::Loader>, L<DBIx::Class::Schema::Loader::Base>,
190 L<DBIx::Class::Schema::Loader::DBI>
194 See L<DBIx::Class::Schema::Loader/AUTHOR> and L<DBIx::Class::Schema::Loader/CONTRIBUTORS>.
198 This library is free software; you can redistribute it and/or modify it under
199 the same terms as Perl itself.