2 { # The driver package itself just needs a db_Main method (or db_Slaves if
3 #Class::DBI::Replication is in use) for Class::DBI to call.
5 # Any other fixups can go in here too... Also, the drivers should subclass the
6 # DBI driver that they are wrapping, or provide a 'quote()' method that calls
7 # the DBD::xxx::quote() method on FTI's behalf.
9 # The dirver MUST be a subclass of Class::DBI(::Replication) and
10 # OpenILS::Application::Storage.
11 #-------------------------------------------------------------------------------
12 package OpenILS::Application::Storage::Driver::Pg;
13 use OpenILS::Application::Storage::Driver::Pg::cdbi;
14 use OpenILS::Application::Storage::Driver::Pg::fts;
15 use OpenILS::Application::Storage::Driver::Pg::storage;
16 use OpenILS::Application::Storage::Driver::Pg::dbi;
18 use base qw/Class::DBI OpenILS::Application::Storage/;
20 use OpenSRF::EX qw/:try/;
21 use OpenSRF::DomainObject::oilsResponse;
22 use OpenSRF::Utils::Logger qw/:level/;
23 my $log = 'OpenSRF::Utils::Logger';
25 __PACKAGE__->set_sql( retrieve_limited => 'SELECT * FROM __TABLE__ ORDER BY id LIMIT ?' );
26 __PACKAGE__->set_sql( copy_start => 'COPY %s (%s) FROM STDIN;' );
27 __PACKAGE__->set_sql( copy_end => '\.' );
34 return ($master_db, @slave_dbs);
41 $log->debug("Running child_init inside ".__PACKAGE__, INTERNAL);
43 $_db_params = [ $_db_params ] unless (ref($_db_params) eq 'ARRAY');
45 my %attrs = ( %{$self->_default_attributes},
46 RootClass => 'DBIx::ContextualFetch',
47 ShowErrorStatement => 1,
52 #TraceLevel => "1|SQL",
54 pg_server_prepare => 0,
55 FetchHashKeyName => 'NAME_lc',
59 my $master = shift @$_db_params;
60 $$master{port} ||= '5432';
61 $$master{host} ||= 'localhost';
62 $$master{db} ||= 'openils';
64 $log->debug("Attempting to connect to $$master{db} at $$master{host}", INFO);
67 $master_db = DBI->connect(
69 "host=$$master{host};".
70 "port=$$master{port};".
71 "dbname=$$master{db}",
78 "host=$$master{host};".
79 "port=$$master{port};".
80 "dbname=$$master{db}",
84 || throw OpenSRF::EX::ERROR
85 ("Couldn't connect to $$master{db}".
86 " on $$master{host}::$$master{port}".
87 " as $$master{user}!!");
90 $log->debug("Error connecting to database:\n\t$e\n\t$DBI::errstr", ERROR);
94 $log->debug("Connected to MASTER db $$master{db} at $$master{host}", INFO);
96 $master_db->do("SET NAMES '$$master{client_encoding}';") if ($$master{client_encoding});
98 for my $db (@$_db_params) {
100 push @slave_dbs, DBI->connect("dbi:Pg:host=$$db{host};port=$$db{port};dbname=$$db{db}",$$db{user},$$db{pw}, \%attrs)
101 || do { sleep(1); DBI->connect("dbi:Pg:host=$$db{host};port=$$db{port};dbname=$$db{db}",$$db{user},$$db{pw}, \%attrs) }
102 || throw OpenSRF::EX::ERROR
103 ("Couldn't connect to $$db{db}".
104 " on $$db{host}::$$db{port}".
108 $log->debug("Error connecting to database:\n\t$e\n\t$DBI::errstr", ERROR);
112 $slave_dbs[-1]->do("SET NAMES '$$db{client_encoding}';") if ($$master{client_encoding});
114 $log->debug("Connected to MASTER db '$$master{db} at $$master{host}", INFO);
117 $log->debug("All is well on the western front", INTERNAL);
122 return $master_db if ($self->current_xact_session || $OpenILS::Application::Storage::WRITE);
123 return $master_db unless (@slave_dbs);
124 return ($master_db, @slave_dbs)[rand(scalar(@slave_dbs))];
129 return $self->db_Main->quote(@_)
132 # sub tsearch2_trigger {
134 # return unless ($self->value);
135 # $self->index_vector(
136 # $self->db_Slaves->selectrow_array(
137 # "SELECT to_tsvector('default',?);",
146 sub current_xact_session {
148 if (defined($_xact_session)) {
149 return $_xact_session;
154 sub current_xact_is_auto {
157 if (defined($_xact_session) and ref($_xact_session)) {
159 $_xact_session->session_data(autocommit => $auto);
161 return $_xact_session->session_data('autocommit');
165 sub current_xact_id {
167 if (defined($_xact_session) and ref($_xact_session)) {
168 return $_xact_session->session_id;
173 sub set_xact_session {
176 if (!defined($ses)) {
179 $_xact_session = $ses;
180 return $_xact_session;
183 sub unset_xact_session {
185 my $ses = $_xact_session;
186 undef $_xact_session;