From: Gordon Irving Date: Sat, 12 Dec 2009 18:38:26 +0000 (+0000) Subject: add some pod to DBIx::Class::Admin X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=commitdiff_plain;h=595cb2c7b19e1ba671f02a7011f2cb2adad3b64f;p=dbsrgits%2FDBIx-Class-Historic.git add some pod to DBIx::Class::Admin --- diff --git a/lib/DBIx/Class/Admin.pm b/lib/DBIx/Class/Admin.pm index f078f33..d5349fc 100644 --- a/lib/DBIx/Class/Admin.pm +++ b/lib/DBIx/Class/Admin.pm @@ -20,39 +20,68 @@ use Moose; use MooseX::Types; use MooseX::Types::Moose qw/Int HashRef ArrayRef Str Any/; use MooseX::Types::Path::Class qw(Dir File); -#use DBIx::Class::Schema; use Try::Tiny; use parent 'Class::C3::Componentised'; use Data::Dumper; -=c - ['lib|I:s' => 'Additonal library path to search in'], - ['schema|s:s' => 'The class of the schema to load', { required => 1 } ], - ['config-stanza|S:s' => 'Where in the config to find the connection_info, supply in form MyApp::Model::DB',], - ['config|C:s' => 'Supply the config file for parsing by Config::Any', { depends => 'config_stanza'} ], - ['connect-info|n:s%' => ' supply the connect info as additonal options ie -I dsn= user= password= '], - ['sql-dir|q:s' => 'The directory where sql diffs will be created'], - ['sql-type|t:s' => 'The RDBMs falvour you wish to use'], - ['version|v:i' => 'Supply a version install'], - ['preversion|p:s' => 'The previous version to diff against',], - - 'schema=s' => \my $schema_class, - 'class=s' => \my $resultset_class, - 'connect=s' => \my $connect, - 'op=s' => \my $op, - 'set=s' => \my $set, - 'where=s' => \my $where, - 'attrs=s' => \my $attrs, - 'format=s' => \my $format, - 'force' => \my $force, - 'trace' => \my $trace, - 'quiet' => \my $quiet, - 'help' => \my $help, - 'tlibs' => \my $t_libs, -=cut +# +# ['lib|I:s' => 'Additonal library path to search in'], +# ['schema|s:s' => 'The class of the schema to load', { required => 1 } ], +# ['config-stanza|S:s' => 'Where in the config to find the connection_info, supply in form MyApp::Model::DB',], +# ['config|C:s' => 'Supply the config file for parsing by Config::Any', { depends => 'config_stanza'} ], +# ['connect-info|n:s%' => ' supply the connect info as additonal options ie -I dsn= user= password= '], +# ['sql-dir|q:s' => 'The directory where sql diffs will be created'], +# ['sql-type|t:s' => 'The RDBMs falvour you wish to use'], +# ['version|v:i' => 'Supply a version install'], +# ['preversion|p:s' => 'The previous version to diff against',], +# +# 'schema=s' => \my $schema_class, +# 'class=s' => \my $resultset_class, +# 'connect=s' => \my $connect, +# 'op=s' => \my $op, +# 'set=s' => \my $set, +# 'where=s' => \my $where, +# 'attrs=s' => \my $attrs, +# 'format=s' => \my $format, +# 'force' => \my $force, +# 'trace' => \my $trace, +# 'quiet' => \my $quiet, +# 'help' => \my $help, +# 'tlibs' => \my $t_libs, +#=cut + +=head1 NAME + +DBIx::Class::Admin - Administration object for schemas + +=head1 SYNOPSIS + + use DBIx::Class::Admin; + + # ddl manipulation + my $admin = DBIx::Class::Admin->new( + schema_class=> 'MY::Schema', + sql_dir=> $sql_dir, + connect_info => { dsn => $dsn, user => $user, password => $pass }, + ); + + # create SQLite sql + $admin->create('SQLite'); + + # create SQL diff for an upgrade + $admin->create('SQLite', {} , "1.0"); + + # upgrade a database + $admin->upgrade(); + + # install a version for an unversioned schema + $admin->install("3.0"); =head1 Attributes +=head2 lib + +add a library search path =cut has lib => ( is => 'ro', @@ -66,14 +95,20 @@ sub _set_inc { push @INC, $lib->stringify; } +=head2 schema_class +the class of the schema to load +=cut has 'schema_class' => ( is => 'ro', isa => 'Str', coerce => 1, ); +=head2 schema +A pre-connected schema object can be provided for manipulation +=cut has 'schema' => ( is => 'ro', isa => 'DBIx::Class::Schema', @@ -90,6 +125,10 @@ sub _build_schema { return $self->schema_class->connect(@{$self->connect_info()} ); # , $self->connect_info->[3], { ignore_version => 1} ); } +=head2 connect_info + +connect_info the arguments to provide to the connect call of the schema_class +=cut has 'connect_info' => ( is => 'ro', isa => ArrayRef, @@ -98,9 +137,36 @@ has 'connect_info' => ( sub _build_connect_info { my ($self) = @_; - return find_stanza($self->config, $self->config_stanza); + return $self->_find_stanza($self->config, $self->config_stanza); } +=head2 config_file + +config_file provide a config_file to read connect_info from, if this is provided +config_stanze should also be provided to locate where the connect_info is in the config +The config file should be in a format readable by Config::General +=cut +has config_file => ( + is => 'ro', + isa => File, + coerce => 1, +); + +=head2 config_stanza + +config_stanza for use with config_file should be a '::' deliminated 'path' to the connection information +designed for use with catalyst config files +=cut +has 'config_stanza' => ( + is => 'ro', + isa => 'Str', +); + +=head2 config + +Instead of loading from a file the configuration can be provided directly as a hash ref. Please note +config_stanza will still be required. +=cut has config => ( is => 'ro', isa => HashRef, @@ -118,67 +184,99 @@ sub _build_config { return $cfg; } -has config_file => ( - is => 'ro', - isa => File, -); - -has 'config_stanza' => ( - is => 'ro', - isa => 'Str', -); +=head2 sql_dir +The location where sql ddl files should be created or found for an upgrade. +=cut has 'sql_dir' => ( is => 'ro', isa => Dir, coerce => 1, ); +=head2 version - -has 'sql_type' => ( - is => 'ro', - isa => 'Str', -); - +Used for install, the version which will be 'installed' in the schema +=cut has version => ( is => 'rw', isa => 'Str', ); +=head2 preversion + +Previouse version of the schema to create an upgrade diff for, the full sql for that version of the sql must be in the sql_dir +=cut has preversion => ( is => 'rw', isa => 'Str', - predicate => 'has_preversion', ); +=head2 force + +Try and force certain operations. +=cut has force => ( is => 'rw', isa => 'Bool', ); +=head2 quite + +Be less verbose about actions +=cut has quiet => ( is => 'rw', isa => 'Bool', ); has '_confirm' => ( - is => 'ro', + is => 'bare', isa => 'Bool', ); +=head1 METHODS + +=head2 create + +=over 4 + +=item Arguments: $sqlt_type, \%sqlt_args, $preversion + +=back + +L will generate sql for the supplied schema_class in sql_dir. The flavour of sql to +generate can be controlled by suppling a sqlt_type which should be a L name. + +Arguments for L can be supplied in the sqlt_args hashref. + +Optional preversion can be supplied to generate a diff to be used by upgrade. +=cut + sub create { - my ($self, $sqlt_type, $sqlt_args) = @_; - if ($self->has_preversion) { - print "attempting to create diff file for ".$self->preversion."\n"; - } + my ($self, $sqlt_type, $sqlt_args, $preversion) = @_; + + $preversion ||= $self->preversion(); + my $schema = $self->schema(); # create the dir if does not exist $self->sql_dir->mkpath() if ( ! -d $self->sql_dir); - $schema->create_ddl_dir( $sqlt_type, (defined $schema->schema_version ? $schema->schema_version : ""), $self->sql_dir->stringify, $self->preversion, $sqlt_args ); + $schema->create_ddl_dir( $sqlt_type, (defined $schema->schema_version ? $schema->schema_version : ""), $self->sql_dir->stringify, $preversion, $sqlt_args ); } +=head2 upgrade + +=over 4 + +=item Arguments: + +=back + +upgrade will attempt to upgrade the connected database to the same version as the schema_class. +B +=cut + sub upgrade { my ($self) = @_; my $schema = $self->schema(); @@ -191,6 +289,19 @@ sub upgrade { } } +=head2 install + +=over 4 + +=item Arguments: $version + +=back + +install is here to help when you want to move to L and have an existing +database. install will take a version and add the version tracking tables and 'install' the version. No +further ddl modification takes place. Setting the force attribute to a true value will allow overriding of +already versioned databases. +=cut sub install { my ($self, $version) = @_; @@ -204,7 +315,7 @@ sub install { } elsif ($schema->get_db_version() and $self->force ) { warn "forcing install may not be a good idea"; - if($self->confirm() ) { + if($self->_confirm() ) { # FIXME private api $self->schema->_set_db_version({ version => $version}); } @@ -215,6 +326,17 @@ sub install { } +=head2 deploy + +=over 4 + +=item Arguments: $args + +=back + +deploy will create the schema at the connected database. C<$args> are passed straight to +L. +=cut sub deploy { my ($self, $args) = @_; my $schema = $self->schema(); @@ -227,30 +349,42 @@ sub deploy { } } -sub find_stanza { - my ($self, $cfg, $stanza) = @_; - my @path = split /::/, $stanza; - while (my $path = shift @path) { - if (exists $cfg->{$path}) { - $cfg = $cfg->{$path}; - } - else { - die "could not find $stanza in config, $path did not seem to exist"; - } - } - return $cfg; -} # FIXME ensure option spec compatability #die('Do not use the where option with the insert op') if ($where); #die('Do not use the attrs option with the insert op') if ($attrs); + +=head2 insert_data + +=over 4 + +=item Arguments: $rs, $set + +=back + +insert_data takes the name of a resultset from the schema_class and a hashref of data to insert +into that resultset + +=cut sub insert_data { my ($self, $rs, $set) = @_; my $resultset = $self->schema->resultset($rs); my $obj = $resultset->create( $set ); - print ''.ref($resultset).' ID: '.join(',',$obj->id())."\n" if (!$self->quiet); + print ''.ref($resultset).' ID: '.join(',',$obj->id())."\n" if (!$self->quiet); } + +=head2 update_data + +=over 4 + +=item Arguments: $rs, $set, $where + +=back + +update_data takes the name of a resultset from the schema_class, a hashref of data to update and +a where hash used to form the search for the rows to update. +=cut sub update_data { my ($self, $rs, $set, $where) = @_; @@ -260,13 +394,24 @@ sub update_data { my $count = $resultset->count(); print "This action will modify $count ".ref($resultset)." records.\n" if (!$self->quiet); - if ( $self->force || $self->confirm() ) { + if ( $self->force || $self->_confirm() ) { $resultset->update_all( $set ); } } # FIXME #die('Do not use the set option with the delete op') if ($set); +=head2 delete_data + +=over 4 + +=item Arguments: $rs, $where, $attrs + +=back + +delete_data takes the name of a resultset from the schema_class, a where hashref and a attrs to pass to ->search. +The found data is deleted and cannot be recovered. +=cut sub delete_data { my ($self, $rs, $where, $attrs) = @_; @@ -276,11 +421,23 @@ sub delete_data { my $count = $resultset->count(); print "This action will delete $count ".ref($resultset)." records.\n" if (!$self->quiet); - if ( $self->force || $self->confirm() ) { + if ( $self->force || $self->_confirm() ) { $resultset->delete_all(); } } +=head2 select_data + +=over 4 + +=item Arguments: $rs, $where, $attrs + +=back + +select_data takes the name of a resultset from the schema_class, a where hashref and a attrs to pass to ->search. +The found data is returned in a array ref where the first row will be the columns list. + +=cut sub select_data { my ($self, $rs, $where, $attrs) = @_; @@ -302,14 +459,27 @@ sub select_data { return \@data; } -sub confirm { +sub _confirm { my ($self) = @_; print "Are you sure you want to do this? (type YES to confirm) \n"; # mainly here for testing - return 1 if ($self->_confirm()); + return 1 if ($self->meta->get_attribute('_confirm')->get_value($self)); my $response = ; return 1 if ($response=~/^YES/); return; } +sub _find_stanza { + my ($self, $cfg, $stanza) = @_; + my @path = split /::/, $stanza; + while (my $path = shift @path) { + if (exists $cfg->{$path}) { + $cfg = $cfg->{$path}; + } + else { + die "could not find $stanza in config, $path did not seem to exist"; + } + } + return $cfg; +} 1;