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package DBIx::Class::Schema::Diff::Schema; |
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use strict; |
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use warnings; |
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# ABSTRACT: Simple Diffing of DBIC Schemas |
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# VERSION |
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# |
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# TODO (#2) |
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# |
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# The structure/design of this class (+ Source and InfoPacket) |
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# made more sense before adding the 'SchemaData' feature (#1) |
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# when these classes were handling both the data extraction from |
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# DBIC and the diffing tasks of the individual section of data. |
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# Now the data extraction work is done in SchemaData leaving only |
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# simple static hashrefs to be dealt with here. These classes should |
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# probably now be consolidated and generalized. I'm not sure |
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# how important this is though since everything is already working. |
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# Later on, if more types of data need to be diffed besides the |
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# 5 current ones (columns,relationships,constraints,table_name,isa), |
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# or it is useful to make that more dynamic, such as to be able to |
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# add more data-points on the fly, then taking the time for |
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# refactoring these will make more sense... (2014-04-14 by vanstyn) |
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# |
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use Moo; |
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with 'DBIx::Class::Schema::Diff::Role::Common'; |
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use Types::Standard qw(:all); |
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use Module::Runtime; |
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use Try::Tiny; |
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use DBIx::Class::Schema::Diff::Source; |
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use DBIx::Class::Schema::Diff::SchemaData; |
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has 'new_schema_only', is => 'ro', isa => Bool, default => sub { 0 }; |
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has 'old_schema', required => 1, is => 'ro', isa => InstanceOf[ |
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'DBIx::Class::Schema::Diff::SchemaData' |
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], coerce => \&_coerce_schema_data; |
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has 'new_schema', required => 1, is => 'ro', isa => InstanceOf[ |
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'DBIx::Class::Schema::Diff::SchemaData' |
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], coerce => \&_coerce_schema_data; |
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sub all_source_names { |
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my $self = shift; |
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return $self->new_schema->sources if ($self->new_schema_only); |
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my ($o,$n) = ($self->old_schema,$self->new_schema); |
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# List of all sources in old, new, or both: |
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return uniq($o->sources,$n->sources); |
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} |
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has 'sources', is => 'ro', lazy => 1, default => sub { |
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my $self = shift; |
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return { map { $_ => $self->_new_Diff_Source($_) } $self->all_source_names }; |
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}, init_arg => undef, isa => HashRef; |
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has 'diff', is => 'ro', lazy => 1, default => sub { |
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my $self = shift; |
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# TODO: handle added/deleted/changed at this level, too... |
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my $diff = { map { |
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$_->diff ? ($_->name => $_->diff) : () |
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} values %{$self->sources} }; |
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return undef unless (keys %$diff > 0); |
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return $diff; |
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}, init_arg => undef, isa => Maybe[HashRef]; |
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sub _schema_diff { (shift) } |
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sub _new_Diff_Source { |
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my $self = shift; |
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my $name = shift; |
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DBIx::Class::Schema::Diff::Source->new( $self->new_schema_only |
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? ( diff_added => 1 ) : ( old_source => scalar try{$self->old_schema->source($name)} ), |
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new_source => scalar try{$self->new_schema->source($name)}, |
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name => $name, _schema_diff => $self |
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) |
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} |
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1; |
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__END__ |