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1 | package DBIx::Class::DeploymentHandler; |
2 | |
3 | use Moose; |
4 | use Method::Signatures::Simple; |
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5 | require DBIx::Class::Schema; # loaded for type constraint |
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6 | require DBIx::Class::ResultSet; # loaded for type constraint |
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7 | use Carp::Clan '^DBIx::Class::DeploymentHandler'; |
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8 | |
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9 | with 'DBIx::Class::DeploymentHandler::WithSqltDeployMethod'; |
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10 | with 'DBIx::Class::DeploymentHandler::WithDatabaseToSchemaVersions'; |
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11 | |
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12 | BEGIN { |
13 | use Moose::Util::TypeConstraints; |
14 | subtype 'DBIx::Class::DeploymentHandler::Databases' |
15 | => as 'ArrayRef[Str]'; |
16 | |
17 | coerce 'DBIx::Class::DeploymentHandler::Databases' |
18 | => from 'Str' |
19 | => via { [$_] }; |
20 | no Moose::Util::TypeConstraints; |
21 | } |
22 | |
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23 | has schema => ( |
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24 | isa => 'DBIx::Class::Schema', |
25 | is => 'ro', |
26 | required => 1, |
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27 | handles => [qw( ddl_filename schema_version )], |
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28 | ); |
29 | |
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30 | has upgrade_directory => ( # configuration |
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31 | isa => 'Str', |
32 | is => 'ro', |
33 | required => 1, |
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34 | default => 'sql', |
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35 | ); |
36 | |
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37 | has backup_directory => ( # configuration |
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38 | isa => 'Str', |
39 | is => 'ro', |
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40 | predicate => 'has_backup_directory', |
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41 | ); |
42 | |
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43 | has do_backup => ( # configuration |
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44 | isa => 'Bool', |
45 | is => 'ro', |
46 | default => undef, |
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47 | ); |
48 | |
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49 | has version_rs => ( |
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50 | isa => 'DBIx::Class::ResultSet', |
51 | is => 'ro', |
52 | lazy_build => 1, |
53 | handles => [qw( is_installed db_version )], |
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54 | ); |
55 | |
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56 | method _build_version_rs { |
57 | $self->schema->set_us_up_the_bomb; |
58 | $self->schema->resultset('__VERSION') |
59 | } |
60 | |
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61 | has databases => ( # configuration |
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62 | coerce => 1, |
63 | isa => 'DBIx::Class::DeploymentHandler::Databases', |
64 | is => 'ro', |
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65 | default => sub { [qw( MySQL SQLite PostgreSQL )] }, |
66 | ); |
67 | |
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68 | has sqltargs => ( # configuration |
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69 | isa => 'HashRef', |
70 | is => 'ro', |
71 | default => sub { {} }, |
72 | ); |
73 | |
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74 | method install($new_version) { |
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75 | carp 'Install not possible as versions table already exists in database' |
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76 | if $self->is_installed; |
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77 | |
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78 | $new_version ||= $self->schema_version; |
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79 | |
80 | if ($new_version) { |
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81 | $self->deploy; |
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82 | |
83 | $self->version_rs->create({ |
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84 | version => $new_version, |
85 | # ddl => $ddl, |
86 | # upgrade_sql => $upgrade_sql, |
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87 | }); |
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88 | } |
89 | } |
90 | |
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91 | method upgrade { |
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92 | my $db_version = $self->db_version; |
93 | my $schema_version = $self->schema_version; |
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94 | |
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95 | unless ($db_version) { |
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96 | # croak? |
97 | carp 'Upgrade not possible as database is unversioned. Please call install first.'; |
98 | return; |
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99 | } |
100 | |
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101 | if ( $db_version eq $schema_version ) { |
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102 | # croak? |
103 | carp "Upgrade not necessary\n"; |
104 | return; |
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105 | } |
106 | |
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107 | my @version_list = $self->ordered_schema_versions; |
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108 | |
109 | # remove all versions in list above the required version |
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110 | while ( @version_list && ( $version_list[-1] ne $schema_version ) ) { |
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111 | pop @version_list; |
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112 | } |
113 | |
114 | # remove all versions in list below the current version |
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115 | while ( @version_list && ( $version_list[0] ne $db_version ) ) { |
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116 | shift @version_list; |
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117 | } |
118 | |
119 | # check we have an appropriate list of versions |
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120 | die if @version_list < 2; |
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121 | |
122 | # do sets of upgrade |
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123 | while ( @version_list >= 2 ) { |
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124 | $self->upgrade_single_step( $version_list[0], $version_list[1] ); |
125 | shift @version_list; |
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126 | } |
127 | } |
128 | |
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129 | __PACKAGE__->meta->make_immutable; |
130 | |
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131 | 1; |
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132 | |
133 | __END__ |
134 | |
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135 | vim: ts=2 sw=2 expandtab |