use Class::Unload;
use Class::Inspector ();
use Scalar::Util 'looks_like_number';
-use File::Slurp 'read_file';
-use DBIx::Class::Schema::Loader::Utils qw/split_name dumper_squashed eval_package_without_redefine_warnings class_path/;
+use DBIx::Class::Schema::Loader::Utils qw/split_name dumper_squashed eval_package_without_redefine_warnings class_path slurp_file/;
use DBIx::Class::Schema::Loader::Optional::Dependencies ();
use Try::Tiny;
use DBIx::Class ();
loader_class
qualify_objects
tables
+ table_comments_table
+ column_comments_table
class_to_table
uniq_to_primary
quiet
+
+ filter_generated_text
/);
naming_set
/);
+my $CURRENT_V = 'v7';
+
+my @CLASS_ARGS = qw(
+ schema_components schema_base_class result_base_class
+ additional_base_classes left_base_classes additional_classes components
+ result_roles
+);
+
+my $LF = "\x0a";
+my $CRLF = "\x0d\x0a";
+
=head1 NAME
DBIx::Class::Schema::Loader::Base - Base DBIx::Class::Schema::Loader Implementation.
By default POD will be generated for columns and relationships, using database
metadata for the text if available and supported.
-Reading database metadata (e.g. C<COMMENT ON TABLE some_table ...>) is only
-supported for Postgres right now.
+Comment metadata can be stored in two ways.
+
+The first is that you can create two tables named C<table_comments> and
+C<column_comments> respectively. They both need to have columns named
+C<table_name> and C<comment_text>. The second one needs to have a column
+named C<column_name>. Then data stored in these tables will be used as a
+source of metadata about tables and comments.
+
+(If you wish you can change the name of these tables with the parameters
+L</table_comments_table> and L</column_comments_table>.)
+
+As a fallback you can use built-in commenting mechanisms. Currently this is
+only supported for PostgreSQL, Oracle and MySQL. To create comments in
+PostgreSQL you add statements of the form C<COMMENT ON TABLE some_table IS
+'...'>, the same syntax is used in Oracle. To create comments in MySQL you add
+C<COMMENT '...'> to the end of the column or table definition. Note that MySQL
+restricts the length of comments, and also does not handle complex Unicode
+characters properly.
Set this to C<0> to turn off all POD generation.
The default is C<60>
+=head2 table_comments_table
+
+The table to look for comments about tables in. By default C<table_comments>.
+See L</generate_pod> for details.
+
+=head2 column_comments_table
+
+The table to look for comments about columns in. By default C<column_comments>.
+See L</generate_pod> for details.
+
=head2 relationship_attrs
Hashref of attributes to pass to each generated relationship, listed
on tables to primary keys, assuming there is only one largest unique
constraint.
+=head2 filter_generated_text
+
+An optional hook that lets you filter the generated text for various classes through
+a function that change it in any way that you want. The function will receive the class
+and text, and returns the new text to use instead. For instance you could add
+custom comment, run C<perltidy>, or do anything else that you want.
+
+If this exists but fails to return text matching C</package/>, no file will be generated.
+
+ filter_generated_base => sub {
+ my ($class, $text) = @_;
+ ...
+ return $new_text;
+ }
+
=head1 METHODS
None of these methods are intended for direct invocation by regular
=cut
-my $CURRENT_V = 'v7';
-
-my @CLASS_ARGS = qw(
- schema_components schema_base_class result_base_class
- additional_base_classes left_base_classes additional_classes components
- result_roles
-);
-
# ensure that a peice of object data is a valid arrayref, creating
# an empty one or encapsulating whatever's there.
sub _ensure_arrayref {
$self->{schema_class} ||= ( ref $self->{schema} || $self->{schema} );
$self->{schema} ||= $self->{schema_class};
+ $self->{table_comments_table} ||= 'table_comments';
+ $self->{column_comments_table} ||= 'column_comments';
croak "dump_overwrite is deprecated. Please read the"
. " DBIx::Class::Schema::Loader::Base documentation"
warn qq/# Loaded external class definition for '$class'\n/
if $self->debug;
- my $code = $self->_rewrite_old_classnames(scalar read_file($real_inc_path, binmode => ':encoding(UTF-8)'));
+ my $code = $self->_rewrite_old_classnames(slurp_file $real_inc_path);
if ($self->dynamic) { # load the class too
eval_package_without_redefine_warnings($class, $code);
}
if ($old_real_inc_path) {
- my $code = read_file($old_real_inc_path, binmode => ':encoding(UTF-8)');
+ my $code = slurp_file $old_real_inc_path;
$self->_ext_stmt($class, <<"EOF");
eval_package_without_redefine_warnings ($class, "require $class");
}
catch {
- my $source = read_file($self->_get_dump_filename($class), binmode => ':encoding(UTF-8)');
+ my $source = slurp_file $self->_get_dump_filename($class);
die "Failed to reload class $class: $_.\n\nCLASS SOURCE:\n\n$source";
};
}
$text .= qq|$_\n|
for @{$self->{_dump_storage}->{$class} || []};
- # Check and see if the dump is infact differnt
+ if ($self->{filter_generated_text}) {
+ $text = $self->{filter_generated_text}->($class, $text);
+ if (not $text or not $text =~ /package/) {
+ warn("$class skipped due to filter") if $self->debug;
+ return;
+ }
+ }
+
+ # Check and see if the dump is in fact different
my $compare_to;
if ($old_md5) {
or croak "Cannot open '$fn' for reading: $!";
my $mark_re =
- qr{^(# DO NOT MODIFY THIS OR ANYTHING ABOVE! md5sum:)([A-Za-z0-9/+]{22})\n};
+ qr{^(# DO NOT MODIFY THIS OR ANYTHING ABOVE! md5sum:)([A-Za-z0-9/+]{22})\r?\n};
my ($md5, $ts, $ver, $gen);
while(<$fh>) {
$md5 = $2;
# Pull out the version and timestamp from the line above
- ($ver, $ts) = $gen =~ m/^# Created by DBIx::Class::Schema::Loader v(.*?) @ (.*?)\Z/m;
+ ($ver, $ts) = $gen =~ m/^# Created by DBIx::Class::Schema::Loader v(.*?) @ (.*?)\r?\Z/m;
$gen .= $pre_md5;
croak "Checksum mismatch in '$fn', the auto-generated part of the file has been modified outside of this loader. Aborting.\nIf you want to overwrite these modifications, set the 'overwrite_modifications' loader option.\n"
my $custom = do { local $/; <$fh> }
if $md5;
- close ($fh);
+ $custom ||= '';
+ $custom =~ s/$CRLF|$LF/\n/g;
+
+ close $fh;
return ($gen, $md5, $ver, $ts, $custom);
}
projects / dbsrgits/DBIx-Class-Schema-Loader.git / blobdiff