File Coverage
blib/lib/Starch/Store/DBI.pm |
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Criterion |
Covered |
Total |
% |
statement |
59 |
62 |
95.1
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branch |
6 |
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60.0
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condition |
1 |
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33.3
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subroutine |
17 |
17 |
100.0
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pod |
2 |
2 |
100.0
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total |
85 |
94 |
90.4
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line |
stmt |
bran |
cond |
sub |
pod |
time |
code |
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package Starch::Store::DBI; |
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$Starch::Store::DBI::VERSION = '0.02'; |
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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 }, |
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], |
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table => 'my_states', |
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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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1
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24101
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use DBI; |
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24899
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use Types::Standard -types; |
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3713
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use Types::Common::String -types; |
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945
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use Scalar::Util qw( blessed ); |
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1630
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use Data::Serializer::Raw; |
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use Moo; |
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use strictures 2; |
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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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4
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4
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4960
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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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3
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1824
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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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3
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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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133
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=head2 table |
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135
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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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138
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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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146
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=head2 key_column |
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148
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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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151
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=cut |
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153
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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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159
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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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164
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=cut |
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166
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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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185
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=head1 ATTRIBUTES |
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187
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=head2 insert_sql |
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189
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The SQL used to create state data. |
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191
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=cut |
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193
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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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3
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839
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my ($self) = @_; |
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201
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3
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92
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return sprintf( |
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'INSERT INTO %s (%s, %s, %s) VALUES (?, ?, ?)', |
203
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$self->table(), |
204
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$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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210
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=head2 update_sql |
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212
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The SQL used to update state data. |
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214
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=cut |
215
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216
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has update_sql => ( |
217
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is => 'lazy', |
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isa => NonEmptyStr, |
219
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init_arg => undef, |
220
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); |
221
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sub _build_update_sql { |
222
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2
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2
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901
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my ($self) = @_; |
223
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224
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2
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89
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return sprintf( |
225
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'UPDATE %s SET %s=?, %s=? WHERE %s=?', |
226
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$self->table(), |
227
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$self->data_column(), |
228
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$self->expiration_column(), |
229
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$self->key_column(), |
230
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); |
231
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} |
232
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233
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=head2 exists_sql |
234
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235
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The SQL used to confirm whether state data already exists. |
236
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237
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|
=cut |
238
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239
|
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|
has exists_sql => ( |
240
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|
is => 'lazy', |
241
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|
isa => NonEmptyStr, |
242
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|
init_arg => undef, |
243
|
|
|
|
|
|
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); |
244
|
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|
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|
sub _build_exists_sql { |
245
|
3
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|
|
3
|
|
528
|
my ($self) = @_; |
246
|
|
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|
|
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247
|
3
|
|
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|
72
|
return sprintf( |
248
|
|
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|
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|
|
'SELECT 1 FROM %s WHERE %s = ?', |
249
|
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|
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|
|
$self->table(), |
250
|
|
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|
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|
$self->key_column(), |
251
|
|
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|
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); |
252
|
|
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|
|
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} |
253
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254
|
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|
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|
=head2 select_sql |
255
|
|
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|
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|
|
|
256
|
|
|
|
|
|
|
The SQL used to retrieve state data. |
257
|
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|
258
|
|
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|
|
|
|
=cut |
259
|
|
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260
|
|
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|
|
|
|
has select_sql => ( |
261
|
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|
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|
is => 'lazy', |
262
|
|
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|
|
|
|
isa => NonEmptyStr, |
263
|
|
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|
|
|
|
init_arg => undef, |
264
|
|
|
|
|
|
|
); |
265
|
|
|
|
|
|
|
sub _build_select_sql { |
266
|
3
|
|
|
3
|
|
741
|
my ($self) = @_; |
267
|
|
|
|
|
|
|
|
268
|
3
|
|
|
|
|
226
|
return sprintf( |
269
|
|
|
|
|
|
|
'SELECT %s, %s FROM %s WHERE %s = ?', |
270
|
|
|
|
|
|
|
$self->data_column(), |
271
|
|
|
|
|
|
|
$self->expiration_column(), |
272
|
|
|
|
|
|
|
$self->table(), |
273
|
|
|
|
|
|
|
$self->key_column(), |
274
|
|
|
|
|
|
|
); |
275
|
|
|
|
|
|
|
} |
276
|
|
|
|
|
|
|
|
277
|
|
|
|
|
|
|
=head2 delete_sql |
278
|
|
|
|
|
|
|
|
279
|
|
|
|
|
|
|
The SQL used to delete state data. |
280
|
|
|
|
|
|
|
|
281
|
|
|
|
|
|
|
=cut |
282
|
|
|
|
|
|
|
|
283
|
|
|
|
|
|
|
has delete_sql => ( |
284
|
|
|
|
|
|
|
is => 'lazy', |
285
|
|
|
|
|
|
|
isa => NonEmptyStr, |
286
|
|
|
|
|
|
|
init_arg => undef, |
287
|
|
|
|
|
|
|
); |
288
|
|
|
|
|
|
|
sub _build_delete_sql { |
289
|
2
|
|
|
2
|
|
1103
|
my ($self) = @_; |
290
|
|
|
|
|
|
|
|
291
|
2
|
|
|
|
|
57
|
return sprintf( |
292
|
|
|
|
|
|
|
'DELETE FROM %s WHERE %s = ?', |
293
|
|
|
|
|
|
|
$self->table(), |
294
|
|
|
|
|
|
|
$self->key_column(), |
295
|
|
|
|
|
|
|
); |
296
|
|
|
|
|
|
|
} |
297
|
|
|
|
|
|
|
|
298
|
|
|
|
|
|
|
=head1 METHODS |
299
|
|
|
|
|
|
|
|
300
|
|
|
|
|
|
|
=head2 set |
301
|
|
|
|
|
|
|
|
302
|
|
|
|
|
|
|
Set L. |
303
|
|
|
|
|
|
|
|
304
|
|
|
|
|
|
|
=head2 get |
305
|
|
|
|
|
|
|
|
306
|
|
|
|
|
|
|
Set L. |
307
|
|
|
|
|
|
|
|
308
|
|
|
|
|
|
|
=head2 remove |
309
|
|
|
|
|
|
|
|
310
|
|
|
|
|
|
|
Set L. |
311
|
|
|
|
|
|
|
|
312
|
|
|
|
|
|
|
=cut |
313
|
|
|
|
|
|
|
|
314
|
|
|
|
|
|
|
sub set { |
315
|
|
|
|
|
|
|
my ($self, $id, $namespace, $data, $expires) = @_; |
316
|
|
|
|
|
|
|
|
317
|
|
|
|
|
|
|
local $Carp::Interal{ (__PACKAGE__) } = 1; |
318
|
|
|
|
|
|
|
|
319
|
|
|
|
|
|
|
my $key = $self->stringify_key( $id, $namespace ); |
320
|
|
|
|
|
|
|
|
321
|
|
|
|
|
|
|
my $dbh = $self->dbh(); |
322
|
|
|
|
|
|
|
|
323
|
|
|
|
|
|
|
my $sth = $dbh->prepare_cached( |
324
|
|
|
|
|
|
|
$self->exists_sql(), |
325
|
|
|
|
|
|
|
); |
326
|
|
|
|
|
|
|
|
327
|
|
|
|
|
|
|
my ($exists) = $dbh->selectrow_array( $sth, undef, $key ); |
328
|
|
|
|
|
|
|
|
329
|
|
|
|
|
|
|
$data = $self->serializer->serialize( $data ); |
330
|
|
|
|
|
|
|
$expires += time(); |
331
|
|
|
|
|
|
|
|
332
|
|
|
|
|
|
|
if ($exists) { |
333
|
|
|
|
|
|
|
my $sth = $self->dbh->prepare_cached( |
334
|
|
|
|
|
|
|
$self->update_sql(), |
335
|
|
|
|
|
|
|
); |
336
|
|
|
|
|
|
|
|
337
|
|
|
|
|
|
|
$sth->execute( $data, $expires, $key ); |
338
|
|
|
|
|
|
|
} |
339
|
|
|
|
|
|
|
else { |
340
|
|
|
|
|
|
|
my $sth = $self->dbh->prepare_cached( |
341
|
|
|
|
|
|
|
$self->insert_sql(), |
342
|
|
|
|
|
|
|
); |
343
|
|
|
|
|
|
|
|
344
|
|
|
|
|
|
|
$sth->execute( $key, $data, $expires ); |
345
|
|
|
|
|
|
|
} |
346
|
|
|
|
|
|
|
|
347
|
|
|
|
|
|
|
return; |
348
|
|
|
|
|
|
|
} |
349
|
|
|
|
|
|
|
|
350
|
|
|
|
|
|
|
sub get { |
351
|
19
|
|
|
19
|
1
|
18970
|
my ($self, $id, $namespace) = @_; |
352
|
|
|
|
|
|
|
|
353
|
19
|
|
|
|
|
71
|
local $Carp::Interal{ (__PACKAGE__) } = 1; |
354
|
|
|
|
|
|
|
|
355
|
19
|
|
|
|
|
102
|
my $key = $self->stringify_key( $id, $namespace ); |
356
|
|
|
|
|
|
|
|
357
|
19
|
|
|
|
|
686
|
my $dbh = $self->dbh(); |
358
|
|
|
|
|
|
|
|
359
|
19
|
|
|
|
|
608
|
my $sth = $dbh->prepare_cached( |
360
|
|
|
|
|
|
|
$self->select_sql(), |
361
|
|
|
|
|
|
|
); |
362
|
|
|
|
|
|
|
|
363
|
19
|
|
|
|
|
4147
|
my ($data, $expiration) = $dbh->selectrow_array( $sth, undef, $key ); |
364
|
|
|
|
|
|
|
|
365
|
19
|
100
|
|
|
|
197
|
return undef if !defined $data; |
366
|
|
|
|
|
|
|
|
367
|
12
|
50
|
33
|
|
|
118
|
if ($expiration and $expiration < time()) { |
368
|
0
|
|
|
|
|
0
|
$self->remove( $id, $namespace ); |
369
|
0
|
|
|
|
|
0
|
return undef; |
370
|
|
|
|
|
|
|
} |
371
|
|
|
|
|
|
|
|
372
|
12
|
|
|
|
|
495
|
return $self->serializer->deserialize( $data ); |
373
|
|
|
|
|
|
|
} |
374
|
|
|
|
|
|
|
|
375
|
|
|
|
|
|
|
sub remove { |
376
|
6
|
|
|
6
|
1
|
11222
|
my ($self, $id, $namespace) = @_; |
377
|
|
|
|
|
|
|
|
378
|
6
|
|
|
|
|
23
|
local $Carp::Interal{ (__PACKAGE__) } = 1; |
379
|
|
|
|
|
|
|
|
380
|
6
|
|
|
|
|
30
|
my $key = $self->stringify_key( $id, $namespace ); |
381
|
|
|
|
|
|
|
|
382
|
6
|
|
|
|
|
299
|
my $dbh = $self->dbh(); |
383
|
|
|
|
|
|
|
|
384
|
6
|
|
|
|
|
667
|
my $sth = $dbh->prepare_cached( |
385
|
|
|
|
|
|
|
$self->delete_sql(), |
386
|
|
|
|
|
|
|
); |
387
|
|
|
|
|
|
|
|
388
|
6
|
|
|
|
|
489592
|
$sth->execute( $key ); |
389
|
|
|
|
|
|
|
|
390
|
6
|
|
|
|
|
77
|
return; |
391
|
|
|
|
|
|
|
} |
392
|
|
|
|
|
|
|
|
393
|
|
|
|
|
|
|
1; |
394
|
|
|
|
|
|
|
__END__ |