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1 | package DBIx::Class::Storage::DBI::Informix; |
2 | use strict; |
3 | use warnings; |
4 | |
5 | use base qw/DBIx::Class::Storage::DBI/; |
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6 | use mro 'c3'; |
7 | |
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8 | use Scope::Guard (); |
9 | use Context::Preserve (); |
10 | |
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11 | __PACKAGE__->mk_group_accessors('simple' => '__last_insert_id'); |
12 | |
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13 | =head1 NAME |
14 | |
15 | DBIx::Class::Storage::DBI::Informix - Base Storage Class for Informix Support |
16 | |
17 | =head1 DESCRIPTION |
18 | |
19 | This class implements storage-specific support for the Informix RDBMS |
20 | |
21 | =head1 METHODS |
22 | |
23 | =cut |
24 | |
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25 | sub _execute { |
26 | my $self = shift; |
27 | my ($op) = @_; |
28 | my ($rv, $sth, @rest) = $self->next::method(@_); |
29 | if ($op eq 'insert') { |
30 | $self->__last_insert_id($sth->{ix_sqlerrd}[1]); |
31 | } |
32 | return (wantarray ? ($rv, $sth, @rest) : $rv); |
33 | } |
34 | |
35 | sub last_insert_id { |
36 | shift->__last_insert_id; |
37 | } |
38 | |
39 | sub _sql_maker_opts { |
40 | my ( $self, $opts ) = @_; |
41 | |
42 | if ( $opts ) { |
43 | $self->{_sql_maker_opts} = { %$opts }; |
44 | } |
45 | |
46 | return { limit_dialect => 'SkipFirst', %{$self->{_sql_maker_opts}||{}} }; |
47 | } |
48 | |
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49 | sub _svp_begin { |
50 | my ($self, $name) = @_; |
51 | |
52 | $self->_get_dbh->do("SAVEPOINT $name"); |
53 | } |
54 | |
55 | # can't release savepoints |
56 | sub _svp_release { 1 } |
57 | |
58 | sub _svp_rollback { |
59 | my ($self, $name) = @_; |
60 | |
61 | $self->_get_dbh->do("ROLLBACK TO SAVEPOINT $name") |
62 | } |
63 | |
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64 | sub with_deferred_fk_checks { |
65 | my ($self, $sub) = @_; |
66 | |
67 | my $txn_scope_guard = $self->txn_scope_guard; |
68 | |
69 | $self->_do_query('SET CONSTRAINTS ALL DEFERRED'); |
70 | |
71 | my $sg = Scope::Guard->new(sub { |
72 | $self->_do_query('SET CONSTRAINTS ALL IMMEDIATE'); |
73 | }); |
74 | |
75 | return Context::Preserve::preserve_context(sub { $sub->() }, |
76 | after => sub { $txn_scope_guard->commit }); |
77 | } |
78 | |
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79 | =head2 connect_call_datetime_setup |
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80 | |
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81 | Used as: |
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82 | |
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83 | on_connect_call => 'datetime_setup' |
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84 | |
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85 | In L<connect_info|DBIx::Class::Storage::DBI/connect_info> to set the C<DATE> and |
86 | C<DATETIME> formats. |
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87 | |
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88 | Sets the following environment variables: |
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89 | |
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90 | GL_DATE="%m/%d/%Y" |
91 | GL_DATETIME="%Y-%m-%d %H:%M:%S%F5" |
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92 | |
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93 | The C<DBDATE> and C<DBCENTURY> environment variables are cleared. |
94 | |
95 | B<NOTE:> setting the C<GL_DATE> environment variable seems to have no effect |
96 | after the process has started, so the default format is used. The C<GL_DATETIME> |
97 | setting does take effect however. |
98 | |
99 | The C<DATETIME> data type supports up to 5 digits after the decimal point for |
100 | second precision, depending on how you have declared your column. The full |
101 | possible precision is used. |
102 | |
103 | The column declaration for a C<DATETIME> with maximum precision is: |
104 | |
105 | column_name DATETIME YEAR TO FRACTION(5) |
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106 | |
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107 | The C<DATE> data type stores the date portion only, and it B<MUST> be declared |
108 | with: |
109 | |
110 | data_type => 'date' |
111 | |
112 | in your Result class. |
113 | |
114 | You will need the L<DateTime::Format::Strptime> module for inflation to work. |
115 | |
116 | =cut |
117 | |
118 | sub connect_call_datetime_setup { |
119 | my $self = shift; |
120 | |
121 | delete @ENV{qw/DBDATE DBCENTURY/}; |
122 | |
123 | $ENV{GL_DATE} = "%m/%d/%Y"; |
124 | $ENV{GL_DATETIME} = "%Y-%m-%d %H:%M:%S%F5"; |
125 | } |
126 | |
127 | sub datetime_parser_type { |
128 | 'DBIx::Class::Storage::DBI::Informix::DateTime::Format' |
129 | } |
130 | |
131 | package # hide from PAUSE |
132 | DBIx::Class::Storage::DBI::Informix::DateTime::Format; |
133 | |
134 | my $timestamp_format = '%Y-%m-%d %H:%M:%S.%5N'; # %F %T |
135 | my $date_format = '%m/%d/%Y'; |
136 | |
137 | my ($timestamp_parser, $date_parser); |
138 | |
139 | sub parse_datetime { |
140 | shift; |
141 | require DateTime::Format::Strptime; |
142 | $timestamp_parser ||= DateTime::Format::Strptime->new( |
143 | pattern => $timestamp_format, |
144 | on_error => 'croak', |
145 | ); |
146 | return $timestamp_parser->parse_datetime(shift); |
147 | } |
148 | |
149 | sub format_datetime { |
150 | shift; |
151 | require DateTime::Format::Strptime; |
152 | $timestamp_parser ||= DateTime::Format::Strptime->new( |
153 | pattern => $timestamp_format, |
154 | on_error => 'croak', |
155 | ); |
156 | return $timestamp_parser->format_datetime(shift); |
157 | } |
158 | |
159 | sub parse_date { |
160 | shift; |
161 | require DateTime::Format::Strptime; |
162 | $date_parser ||= DateTime::Format::Strptime->new( |
163 | pattern => $date_format, |
164 | on_error => 'croak', |
165 | ); |
166 | return $date_parser->parse_datetime(shift); |
167 | } |
168 | |
169 | sub format_date { |
170 | shift; |
171 | require DateTime::Format::Strptime; |
172 | $date_parser ||= DateTime::Format::Strptime->new( |
173 | pattern => $date_format, |
174 | on_error => 'croak', |
175 | ); |
176 | return $date_parser->format_datetime(shift); |
177 | } |
178 | |
179 | 1; |
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180 | |
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181 | =head1 AUTHOR |
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182 | |
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183 | See L<DBIx::Class/AUTHOR> and L<DBIx::Class/CONTRIBUTORS>. |
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184 | |
185 | =head1 LICENSE |
186 | |
187 | You may distribute this code under the same terms as Perl itself. |
188 | |
189 | =cut |