Commit | Line | Data |
843f8ecd |
1 | package DBIx::Class::Storage::DBI::SQLite; |
2 | |
3 | use strict; |
4 | use warnings; |
2ad62d97 |
5 | |
6 | use base qw/DBIx::Class::Storage::DBI/; |
7 | use mro 'c3'; |
8 | |
632d1e0f |
9 | use DBIx::Class::Carp; |
10 | use Scalar::Util 'looks_like_number'; |
11 | use namespace::clean; |
12 | |
d5dedbd6 |
13 | __PACKAGE__->sql_maker_class('DBIx::Class::SQLMaker::SQLite'); |
6a247f33 |
14 | __PACKAGE__->sql_limit_dialect ('LimitOffset'); |
2b8cc2f2 |
15 | __PACKAGE__->sql_quote_char ('"'); |
6f7a118e |
16 | __PACKAGE__->datetime_parser_type ('DateTime::Format::SQLite'); |
09cedb88 |
17 | |
2fa97c7d |
18 | =head1 NAME |
19 | |
20 | DBIx::Class::Storage::DBI::SQLite - Automatic primary key class for SQLite |
21 | |
22 | =head1 SYNOPSIS |
23 | |
24 | # In your table classes |
25 | use base 'DBIx::Class::Core'; |
26 | __PACKAGE__->set_primary_key('id'); |
27 | |
28 | =head1 DESCRIPTION |
29 | |
30 | This class implements autoincrements for SQLite. |
31 | |
32 | =head1 METHODS |
33 | |
34 | =cut |
35 | |
357eb92c |
36 | sub backup { |
37 | |
38 | require File::Spec; |
39 | require File::Copy; |
40 | require POSIX; |
41 | |
8795fefb |
42 | my ($self, $dir) = @_; |
43 | $dir ||= './'; |
c9d2e0a2 |
44 | |
45 | ## Where is the db file? |
12c9beea |
46 | my $dsn = $self->_dbi_connect_info()->[0]; |
c9d2e0a2 |
47 | |
48 | my $dbname = $1 if($dsn =~ /dbname=([^;]+)/); |
49 | if(!$dbname) |
50 | { |
51 | $dbname = $1 if($dsn =~ /^dbi:SQLite:(.+)$/i); |
52 | } |
357eb92c |
53 | $self->throw_exception("Cannot determine name of SQLite db file") |
c9d2e0a2 |
54 | if(!$dbname || !-f $dbname); |
55 | |
56 | # print "Found database: $dbname\n"; |
79923569 |
57 | # my $dbfile = file($dbname); |
8795fefb |
58 | my ($vol, $dbdir, $file) = File::Spec->splitpath($dbname); |
79923569 |
59 | # my $file = $dbfile->basename(); |
357eb92c |
60 | $file = POSIX::strftime("%Y-%m-%d-%H_%M_%S", localtime()) . $file; |
c9d2e0a2 |
61 | $file = "B$file" while(-f $file); |
8795fefb |
62 | |
63 | mkdir($dir) unless -f $dir; |
64 | my $backupfile = File::Spec->catfile($dir, $file); |
65 | |
357eb92c |
66 | my $res = File::Copy::copy($dbname, $backupfile); |
c9d2e0a2 |
67 | $self->throw_exception("Backup failed! ($!)") if(!$res); |
68 | |
8795fefb |
69 | return $backupfile; |
c9d2e0a2 |
70 | } |
71 | |
86a51471 |
72 | sub _exec_svp_begin { |
73 | my ($self, $name) = @_; |
74 | |
75 | $self->_dbh->do("SAVEPOINT $name"); |
76 | } |
77 | |
78 | sub _exec_svp_release { |
79 | my ($self, $name) = @_; |
80 | |
81 | $self->_dbh->do("RELEASE SAVEPOINT $name"); |
82 | } |
83 | |
84 | sub _exec_svp_rollback { |
85 | my ($self, $name) = @_; |
86 | |
87 | # For some reason this statement changes the value of $dbh->{AutoCommit}, so |
88 | # we localize it here to preserve the original value. |
89 | local $self->_dbh->{AutoCommit} = $self->_dbh->{AutoCommit}; |
90 | |
91 | $self->_dbh->do("ROLLBACK TRANSACTION TO SAVEPOINT $name"); |
92 | } |
93 | |
2361982d |
94 | sub deployment_statements { |
96736321 |
95 | my $self = shift; |
2361982d |
96 | my ($schema, $type, $version, $dir, $sqltargs, @rest) = @_; |
97 | |
98 | $sqltargs ||= {}; |
99 | |
96736321 |
100 | if ( |
101 | ! exists $sqltargs->{producer_args}{sqlite_version} |
102 | and |
103 | my $dver = $self->_server_info->{normalized_dbms_version} |
104 | ) { |
105 | $sqltargs->{producer_args}{sqlite_version} = $dver; |
6d766626 |
106 | } |
2361982d |
107 | |
108 | $self->next::method($schema, $type, $version, $dir, $sqltargs, @rest); |
109 | } |
110 | |
0e773352 |
111 | sub bind_attribute_by_data_type { |
67b35a45 |
112 | $_[1] =~ /^ (?: int(?:eger)? | (?:tiny|small|medium)int ) $/ix |
0e773352 |
113 | ? do { require DBI; DBI::SQL_INTEGER() } |
114 | : undef |
115 | ; |
116 | } |
117 | |
632d1e0f |
118 | # DBD::SQLite (at least up to version 1.31 has a bug where it will |
119 | # non-fatally nummify a string value bound as an integer, resulting |
120 | # in insertions of '0' into supposed-to-be-numeric fields |
121 | # Since this can result in severe data inconsistency, remove the |
122 | # bind attr if such a sitation is detected |
123 | # |
124 | # FIXME - when a DBD::SQLite version is released that eventually fixes |
125 | # this sutiation (somehow) - no-op this override once a proper DBD |
126 | # version is detected |
127 | sub _dbi_attrs_for_bind { |
128 | my ($self, $ident, $bind) = @_; |
129 | my $bindattrs = $self->next::method($ident, $bind); |
130 | |
131 | for (0.. $#$bindattrs) { |
132 | if ( |
133 | defined $bindattrs->[$_] |
134 | and |
135 | defined $bind->[$_][1] |
136 | and |
137 | $bindattrs->[$_] eq DBI::SQL_INTEGER() |
138 | and |
139 | ! looks_like_number ($bind->[$_][1]) |
140 | ) { |
141 | carp_unique( sprintf ( |
142 | "Non-numeric value supplied for column '%s' despite the numeric datatype", |
143 | $bind->[$_][0]{dbic_colname} || "# $_" |
144 | ) ); |
145 | undef $bindattrs->[$_]; |
146 | } |
147 | } |
148 | |
149 | return $bindattrs; |
150 | } |
151 | |
732e4282 |
152 | =head2 connect_call_use_foreign_keys |
153 | |
154 | Used as: |
155 | |
156 | on_connect_call => 'use_foreign_keys' |
157 | |
8384a713 |
158 | In L<connect_info|DBIx::Class::Storage::DBI/connect_info> to turn on foreign key |
159 | (including cascading) support for recent versions of SQLite and L<DBD::SQLite>. |
732e4282 |
160 | |
161 | Executes: |
162 | |
8273e845 |
163 | PRAGMA foreign_keys = ON |
732e4282 |
164 | |
165 | See L<http://www.sqlite.org/foreignkeys.html> for more information. |
166 | |
167 | =cut |
168 | |
169 | sub connect_call_use_foreign_keys { |
170 | my $self = shift; |
171 | |
172 | $self->_do_query( |
173 | 'PRAGMA foreign_keys = ON' |
174 | ); |
175 | } |
176 | |
843f8ecd |
177 | 1; |
178 | |
843f8ecd |
179 | =head1 AUTHORS |
180 | |
181 | Matt S. Trout <mst@shadowcatsystems.co.uk> |
182 | |
183 | =head1 LICENSE |
184 | |
185 | You may distribute this code under the same terms as Perl itself. |
186 | |
187 | =cut |