File Coverage
blib/lib/Starch/Store/DBI.pm |
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Criterion |
Covered |
Total |
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statement |
59 |
62 |
95.1
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branch |
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60.0
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condition |
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33.3
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subroutine |
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100.0
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pod |
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100.0
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total |
86 |
95 |
90.5
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line |
stmt |
bran |
cond |
sub |
pod |
time |
code |
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package Starch::Store::DBI; |
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use 5.008001; |
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use strictures 2; |
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our $VERSION = '0.04'; |
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=head1 NAME |
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Starch::Store::DBI - Starch storage backend using DBI. |
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=head1 SYNOPSIS |
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my $starch = Starch->new( |
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store => { |
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class => '::DBI', |
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dbh => [ |
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$dsn, |
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$username, |
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$password, |
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{ RaiseError=>1, AutoCommit=>1 }, |
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], |
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}, |
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); |
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=head1 DESCRIPTION |
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This L store uses L to set and get state data. |
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Consider using L instead |
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of this store as L provides superior re-connection |
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and transaction handling capabilities. |
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The table in your database should contain three columns. This |
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is the SQLite syntax for creating a compatible table which you |
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can modify to work for your particular database's syntax: |
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CREATE TABLE starch_states ( |
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key TEXT NOT NULL PRIMARY KEY, |
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data TEXT NOT NULL, |
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expiration INTEGER NOT NULL |
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) |
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=cut |
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use DBI; |
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17434
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use Types::Standard -types; |
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use Types::Common::String -types; |
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1424
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use Scalar::Util qw( blessed ); |
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use Data::Serializer::Raw; |
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837
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use Moo; |
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use namespace::clean; |
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with qw( |
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Starch::Store |
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); |
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=head1 REQUIRED ARGUMENTS |
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=head2 dbh |
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This must be set to either array ref arguments for L |
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or a pre-built object (often retrieved using a method proxy). |
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When configuring Starch from static configuration files using a |
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L |
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is a good way to link your existing L object constructor |
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in with Starch so that starch doesn't build its own. |
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=cut |
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has _dbh_arg => ( |
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is => 'ro', |
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isa => (InstanceOf[ 'DBI::db' ]) | ArrayRef, |
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init_arg => 'dbh', |
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required => 1, |
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); |
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has dbh => ( |
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is => 'lazy', |
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isa => InstanceOf[ 'DBI::db' ], |
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init_arg => undef, |
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); |
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sub _build_dbh { |
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my ($self) = @_; |
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my $dbh = $self->_dbh_arg(); |
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return $dbh if blessed $dbh; |
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return DBI->connect( @$dbh ); |
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} |
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=head1 OPTIONAL ARGUMENTS |
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=head2 serializer |
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A L for serializing the state data for storage |
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in the L. Can be specified as string containing the |
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serializer name, a hash ref of Data::Serializer::Raw arguments, or as a |
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pre-created Data::Serializer::Raw object. Defaults to C. |
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Consider using the C or C serializers for speed. |
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C will likely be the fastest and produce the most compact data. |
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=cut |
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has _serializer_arg => ( |
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is => 'ro', |
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isa => ((InstanceOf[ 'Data::Serializer::Raw' ]) | HashRef) | NonEmptySimpleStr, |
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init_arg => 'serializer', |
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default => 'JSON', |
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); |
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has serializer => ( |
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is => 'lazy', |
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isa => InstanceOf[ 'Data::Serializer::Raw' ], |
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init_arg => undef, |
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); |
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sub _build_serializer { |
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my ($self) = @_; |
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my $serializer = $self->_serializer_arg(); |
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return $serializer if blessed $serializer; |
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if (ref $serializer) { |
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return Data::Serializer::Raw->new( %$serializer ); |
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} |
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return Data::Serializer::Raw->new( |
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serializer => $serializer, |
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); |
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} |
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=head2 table |
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The table name where states are stored in the database. |
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Defaults to C. |
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=cut |
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has table => ( |
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is => 'ro', |
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isa => NonEmptySimpleStr, |
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default => 'starch_states', |
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); |
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=head2 key_column |
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The column in the L |
where the state ID is stored.
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Defaults to C. |
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152
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=cut |
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has key_column => ( |
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is => 'ro', |
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isa => NonEmptySimpleStr, |
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default => 'key', |
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); |
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=head2 data_column |
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The column in the L which will hold the state |
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data. Defaults to C. |
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=cut |
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has data_column => ( |
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is => 'ro', |
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isa => NonEmptySimpleStr, |
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default => 'data', |
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); |
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=head2 expiration_column |
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The column in the L which will hold the epoch time |
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when the state should be expired. Defaults to C. |
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=cut |
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has expiration_column => ( |
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is => 'ro', |
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isa => NonEmptySimpleStr, |
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default => 'expiration', |
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); |
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=head1 ATTRIBUTES |
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=head2 insert_sql |
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The SQL used to create state data. |
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=cut |
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has insert_sql => ( |
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is => 'lazy', |
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isa => NonEmptyStr, |
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init_arg => undef, |
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); |
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sub _build_insert_sql { |
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3
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my ($self) = @_; |
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202
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85
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return sprintf( |
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'INSERT INTO %s (%s, %s, %s) VALUES (?, ?, ?)', |
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$self->table(), |
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$self->key_column(), |
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$self->data_column(), |
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$self->expiration_column(), |
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); |
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} |
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=head2 update_sql |
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213
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The SQL used to update state data. |
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215
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=cut |
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217
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has update_sql => ( |
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is => 'lazy', |
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isa => NonEmptyStr, |
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init_arg => undef, |
221
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); |
222
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sub _build_update_sql { |
223
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2
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2
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87
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my ($self) = @_; |
224
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225
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2
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59
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return sprintf( |
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'UPDATE %s SET %s=?, %s=? WHERE %s=?', |
227
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$self->table(), |
228
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$self->data_column(), |
229
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$self->expiration_column(), |
230
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$self->key_column(), |
231
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); |
232
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} |
233
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234
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=head2 exists_sql |
235
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236
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The SQL used to confirm whether state data already exists. |
237
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238
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=cut |
239
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240
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|
has exists_sql => ( |
241
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is => 'lazy', |
242
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isa => NonEmptyStr, |
243
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init_arg => undef, |
244
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|
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|
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); |
245
|
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|
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|
sub _build_exists_sql { |
246
|
3
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|
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3
|
|
43
|
my ($self) = @_; |
247
|
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248
|
3
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78
|
return sprintf( |
249
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|
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|
'SELECT 1 FROM %s WHERE %s = ?', |
250
|
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|
$self->table(), |
251
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|
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$self->key_column(), |
252
|
|
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|
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); |
253
|
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|
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} |
254
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255
|
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|
=head2 select_sql |
256
|
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|
257
|
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|
|
|
|
The SQL used to retrieve state data. |
258
|
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259
|
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|
|
|
|
=cut |
260
|
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261
|
|
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|
|
|
|
has select_sql => ( |
262
|
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|
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|
is => 'lazy', |
263
|
|
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|
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|
|
isa => NonEmptyStr, |
264
|
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|
|
|
|
init_arg => undef, |
265
|
|
|
|
|
|
|
); |
266
|
|
|
|
|
|
|
sub _build_select_sql { |
267
|
3
|
|
|
3
|
|
34
|
my ($self) = @_; |
268
|
|
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|
|
|
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|
269
|
3
|
|
|
|
|
79
|
return sprintf( |
270
|
|
|
|
|
|
|
'SELECT %s, %s FROM %s WHERE %s = ?', |
271
|
|
|
|
|
|
|
$self->data_column(), |
272
|
|
|
|
|
|
|
$self->expiration_column(), |
273
|
|
|
|
|
|
|
$self->table(), |
274
|
|
|
|
|
|
|
$self->key_column(), |
275
|
|
|
|
|
|
|
); |
276
|
|
|
|
|
|
|
} |
277
|
|
|
|
|
|
|
|
278
|
|
|
|
|
|
|
=head2 delete_sql |
279
|
|
|
|
|
|
|
|
280
|
|
|
|
|
|
|
The SQL used to delete state data. |
281
|
|
|
|
|
|
|
|
282
|
|
|
|
|
|
|
=cut |
283
|
|
|
|
|
|
|
|
284
|
|
|
|
|
|
|
has delete_sql => ( |
285
|
|
|
|
|
|
|
is => 'lazy', |
286
|
|
|
|
|
|
|
isa => NonEmptyStr, |
287
|
|
|
|
|
|
|
init_arg => undef, |
288
|
|
|
|
|
|
|
); |
289
|
|
|
|
|
|
|
sub _build_delete_sql { |
290
|
2
|
|
|
2
|
|
29
|
my ($self) = @_; |
291
|
|
|
|
|
|
|
|
292
|
2
|
|
|
|
|
53
|
return sprintf( |
293
|
|
|
|
|
|
|
'DELETE FROM %s WHERE %s = ?', |
294
|
|
|
|
|
|
|
$self->table(), |
295
|
|
|
|
|
|
|
$self->key_column(), |
296
|
|
|
|
|
|
|
); |
297
|
|
|
|
|
|
|
} |
298
|
|
|
|
|
|
|
|
299
|
|
|
|
|
|
|
=head1 METHODS |
300
|
|
|
|
|
|
|
|
301
|
|
|
|
|
|
|
=head2 set |
302
|
|
|
|
|
|
|
|
303
|
|
|
|
|
|
|
Set L. |
304
|
|
|
|
|
|
|
|
305
|
|
|
|
|
|
|
=head2 get |
306
|
|
|
|
|
|
|
|
307
|
|
|
|
|
|
|
Set L. |
308
|
|
|
|
|
|
|
|
309
|
|
|
|
|
|
|
=head2 remove |
310
|
|
|
|
|
|
|
|
311
|
|
|
|
|
|
|
Set L. |
312
|
|
|
|
|
|
|
|
313
|
|
|
|
|
|
|
=cut |
314
|
|
|
|
|
|
|
|
315
|
|
|
|
|
|
|
sub set { |
316
|
|
|
|
|
|
|
my ($self, $id, $namespace, $data, $expires) = @_; |
317
|
|
|
|
|
|
|
|
318
|
|
|
|
|
|
|
my $key = $self->stringify_key( $id, $namespace ); |
319
|
|
|
|
|
|
|
|
320
|
|
|
|
|
|
|
my $dbh = $self->dbh(); |
321
|
|
|
|
|
|
|
|
322
|
|
|
|
|
|
|
my $sth = $dbh->prepare_cached( |
323
|
|
|
|
|
|
|
$self->exists_sql(), |
324
|
|
|
|
|
|
|
); |
325
|
|
|
|
|
|
|
|
326
|
|
|
|
|
|
|
my ($exists) = $dbh->selectrow_array( $sth, undef, $key ); |
327
|
|
|
|
|
|
|
|
328
|
|
|
|
|
|
|
$data = $self->serializer->serialize( $data ); |
329
|
|
|
|
|
|
|
$expires += time(); |
330
|
|
|
|
|
|
|
|
331
|
|
|
|
|
|
|
if ($exists) { |
332
|
|
|
|
|
|
|
my $sth = $self->dbh->prepare_cached( |
333
|
|
|
|
|
|
|
$self->update_sql(), |
334
|
|
|
|
|
|
|
); |
335
|
|
|
|
|
|
|
|
336
|
|
|
|
|
|
|
$sth->execute( $data, $expires, $key ); |
337
|
|
|
|
|
|
|
} |
338
|
|
|
|
|
|
|
else { |
339
|
|
|
|
|
|
|
my $sth = $self->dbh->prepare_cached( |
340
|
|
|
|
|
|
|
$self->insert_sql(), |
341
|
|
|
|
|
|
|
); |
342
|
|
|
|
|
|
|
|
343
|
|
|
|
|
|
|
$sth->execute( $key, $data, $expires ); |
344
|
|
|
|
|
|
|
} |
345
|
|
|
|
|
|
|
|
346
|
|
|
|
|
|
|
return; |
347
|
|
|
|
|
|
|
} |
348
|
|
|
|
|
|
|
|
349
|
|
|
|
|
|
|
sub get { |
350
|
19
|
|
|
19
|
1
|
15274
|
my ($self, $id, $namespace) = @_; |
351
|
|
|
|
|
|
|
|
352
|
19
|
|
|
|
|
96
|
my $key = $self->stringify_key( $id, $namespace ); |
353
|
|
|
|
|
|
|
|
354
|
19
|
|
|
|
|
539
|
my $dbh = $self->dbh(); |
355
|
|
|
|
|
|
|
|
356
|
19
|
|
|
|
|
477
|
my $sth = $dbh->prepare_cached( |
357
|
|
|
|
|
|
|
$self->select_sql(), |
358
|
|
|
|
|
|
|
); |
359
|
|
|
|
|
|
|
|
360
|
19
|
|
|
|
|
2600
|
my ($data, $expiration) = $dbh->selectrow_array( $sth, undef, $key ); |
361
|
|
|
|
|
|
|
|
362
|
19
|
100
|
|
|
|
149
|
return undef if !defined $data; |
363
|
|
|
|
|
|
|
|
364
|
12
|
50
|
33
|
|
|
88
|
if ($expiration and $expiration < time()) { |
365
|
0
|
|
|
|
|
0
|
$self->remove( $id, $namespace ); |
366
|
0
|
|
|
|
|
0
|
return undef; |
367
|
|
|
|
|
|
|
} |
368
|
|
|
|
|
|
|
|
369
|
12
|
|
|
|
|
333
|
return $self->serializer->deserialize( $data ); |
370
|
|
|
|
|
|
|
} |
371
|
|
|
|
|
|
|
|
372
|
|
|
|
|
|
|
sub remove { |
373
|
6
|
|
|
6
|
1
|
21996
|
my ($self, $id, $namespace) = @_; |
374
|
|
|
|
|
|
|
|
375
|
6
|
|
|
|
|
27
|
my $key = $self->stringify_key( $id, $namespace ); |
376
|
|
|
|
|
|
|
|
377
|
6
|
|
|
|
|
159
|
my $dbh = $self->dbh(); |
378
|
|
|
|
|
|
|
|
379
|
6
|
|
|
|
|
755
|
my $sth = $dbh->prepare_cached( |
380
|
|
|
|
|
|
|
$self->delete_sql(), |
381
|
|
|
|
|
|
|
); |
382
|
|
|
|
|
|
|
|
383
|
6
|
|
|
|
|
59440
|
$sth->execute( $key ); |
384
|
|
|
|
|
|
|
|
385
|
6
|
|
|
|
|
97
|
return; |
386
|
|
|
|
|
|
|
} |
387
|
|
|
|
|
|
|
|
388
|
|
|
|
|
|
|
1; |
389
|
|
|
|
|
|
|
__END__ |