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1 | package DBIx::Class::Storage::DBI::Firebird::Common; |
2 | |
3 | use strict; |
4 | use warnings; |
5 | use base qw/DBIx::Class::Storage::DBI/; |
6 | use mro 'c3'; |
7 | use List::Util 'first'; |
8 | use namespace::clean; |
9 | |
10 | =head1 NAME |
11 | |
12 | DBIx::Class::Storage::DBI::Firebird::Common - Driver Base Class for the Firebird RDBMS |
13 | |
14 | =head1 DESCRIPTION |
15 | |
16 | This class implements autoincrements for Firebird using C<RETURNING> as well as |
17 | L<auto_nextval|DBIx::Class::ResultSource/auto_nextval>, savepoints and server |
18 | version detection. |
19 | |
20 | =cut |
21 | |
22 | # set default |
23 | __PACKAGE__->_use_insert_returning (1); |
24 | __PACKAGE__->sql_limit_dialect ('FirstSkip'); |
25 | __PACKAGE__->sql_quote_char ('"'); |
26 | |
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27 | __PACKAGE__->datetime_parser_type( |
28 | 'DBIx::Class::Storage::DBI::InterBase::DateTime::Format' |
29 | ); |
30 | |
f7370154 |
31 | sub sqlt_type { |
32 | return 'Firebird'; |
33 | } |
34 | |
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35 | sub _sequence_fetch { |
36 | my ($self, $nextval, $sequence) = @_; |
37 | |
38 | $self->throw_exception("Can only fetch 'nextval' for a sequence") |
39 | if $nextval !~ /^nextval$/i; |
40 | |
41 | $self->throw_exception('No sequence to fetch') unless $sequence; |
42 | |
43 | my ($val) = $self->_get_dbh->selectrow_array(sprintf |
44 | 'SELECT GEN_ID(%s, 1) FROM rdb$database', |
45 | $self->sql_maker->_quote($sequence) |
46 | ); |
47 | |
48 | return $val; |
49 | } |
50 | |
51 | sub _dbh_get_autoinc_seq { |
52 | my ($self, $dbh, $source, $col) = @_; |
53 | |
54 | my $table_name = $source->from; |
55 | $table_name = $$table_name if ref $table_name; |
56 | $table_name = $self->sql_maker->quote_char ? $table_name : uc($table_name); |
57 | |
58 | local $dbh->{LongReadLen} = 100000; |
59 | local $dbh->{LongTruncOk} = 1; |
60 | |
61 | my $sth = $dbh->prepare(<<'EOF'); |
62 | SELECT t.rdb$trigger_source |
63 | FROM rdb$triggers t |
64 | WHERE t.rdb$relation_name = ? |
65 | AND t.rdb$system_flag = 0 -- user defined |
66 | AND t.rdb$trigger_type = 1 -- BEFORE INSERT |
67 | EOF |
68 | $sth->execute($table_name); |
69 | |
70 | while (my ($trigger) = $sth->fetchrow_array) { |
d77ee505 |
71 | my @trig_cols = map |
72 | { /^"([^"]+)/ ? $1 : uc($_) } |
73 | $trigger =~ /new\.("?\w+"?)/ig |
74 | ; |
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75 | |
76 | my ($quoted, $generator) = $trigger =~ |
77 | /(?:gen_id\s* \( \s* |next \s* value \s* for \s*)(")?(\w+)/ix; |
78 | |
79 | if ($generator) { |
80 | $generator = uc $generator unless $quoted; |
81 | |
82 | return $generator |
83 | if first { |
84 | $self->sql_maker->quote_char ? ($_ eq $col) : (uc($_) eq uc($col)) |
85 | } @trig_cols; |
86 | } |
87 | } |
88 | |
89 | return undef; |
90 | } |
91 | |
90d7422f |
92 | sub _exec_svp_begin { |
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93 | my ($self, $name) = @_; |
94 | |
95 | $self->_dbh->do("SAVEPOINT $name"); |
96 | } |
97 | |
90d7422f |
98 | sub _exec_svp_release { |
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99 | my ($self, $name) = @_; |
100 | |
101 | $self->_dbh->do("RELEASE SAVEPOINT $name"); |
102 | } |
103 | |
90d7422f |
104 | sub _exec_svp_rollback { |
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105 | my ($self, $name) = @_; |
106 | |
107 | $self->_dbh->do("ROLLBACK TO SAVEPOINT $name") |
108 | } |
109 | |
110 | # http://www.firebirdfaq.org/faq223/ |
111 | sub _get_server_version { |
112 | my $self = shift; |
113 | |
114 | return $self->_get_dbh->selectrow_array(q{ |
115 | SELECT rdb$get_context('SYSTEM', 'ENGINE_VERSION') FROM rdb$database |
116 | }); |
117 | } |
118 | |
e5a62c46 |
119 | package # hide from PAUSE |
120 | DBIx::Class::Storage::DBI::InterBase::DateTime::Format; |
121 | |
122 | my $timestamp_format = '%Y-%m-%d %H:%M:%S.%4N'; # %F %T |
123 | my $date_format = '%Y-%m-%d'; |
124 | |
125 | my ($timestamp_parser, $date_parser); |
126 | |
127 | sub parse_datetime { |
128 | shift; |
129 | require DateTime::Format::Strptime; |
130 | $timestamp_parser ||= DateTime::Format::Strptime->new( |
131 | pattern => $timestamp_format, |
132 | on_error => 'croak', |
133 | ); |
134 | return $timestamp_parser->parse_datetime(shift); |
135 | } |
136 | |
137 | sub format_datetime { |
138 | shift; |
139 | require DateTime::Format::Strptime; |
140 | $timestamp_parser ||= DateTime::Format::Strptime->new( |
141 | pattern => $timestamp_format, |
142 | on_error => 'croak', |
143 | ); |
144 | return $timestamp_parser->format_datetime(shift); |
145 | } |
146 | |
147 | sub parse_date { |
148 | shift; |
149 | require DateTime::Format::Strptime; |
150 | $date_parser ||= DateTime::Format::Strptime->new( |
151 | pattern => $date_format, |
152 | on_error => 'croak', |
153 | ); |
154 | return $date_parser->parse_datetime(shift); |
155 | } |
156 | |
157 | sub format_date { |
158 | shift; |
159 | require DateTime::Format::Strptime; |
160 | $date_parser ||= DateTime::Format::Strptime->new( |
161 | pattern => $date_format, |
162 | on_error => 'croak', |
163 | ); |
164 | return $date_parser->format_datetime(shift); |
165 | } |
166 | |
e46df41a |
167 | =head1 CAVEATS |
168 | |
169 | =over 4 |
170 | |
171 | =item * |
172 | |
173 | C<last_insert_id> support by default only works for Firebird versions 2 or |
174 | greater, L<auto_nextval|DBIx::Class::ResultSource/auto_nextval> however should |
175 | work with earlier versions. |
176 | |
177 | =back |
178 | |
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179 | =head1 FURTHER QUESTIONS? |
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180 | |
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181 | Check the list of L<additional DBIC resources|DBIx::Class/GETTING HELP/SUPPORT>. |
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182 | |
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183 | =head1 COPYRIGHT AND LICENSE |
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184 | |
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185 | This module is free software L<copyright|DBIx::Class/COPYRIGHT AND LICENSE> |
186 | by the L<DBIx::Class (DBIC) authors|DBIx::Class/AUTHORS>. You can |
187 | redistribute it and/or modify it under the same terms as the |
188 | L<DBIx::Class library|DBIx::Class/COPYRIGHT AND LICENSE>. |
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189 | |
190 | =cut |
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191 | |
192 | 1; |
193 | |
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194 | # vim:sts=2 sw=2: |