use Class::C3;
use Class::Inspector;
+use Carp::Clan qw/DBIx::Class/;
sub inject_base {
my ($class, $target, @to_inject) = @_;
$class->inject_base($class => @comp);
}
+# Given a class name, tests to see if it is already loaded or otherwise
+# defined. If it is not yet loaded, the package is require'd, and an exception
+# is thrown if the class is still not loaded.
+#
# TODO: handle ->has_many('rel', 'Class'...) instead of
# ->has_many('rel', 'Some::Schema::Class'...)
+#
+# BUG: For some reason, packages with syntax errors are added to %INC on
+# require
sub ensure_class_loaded {
my ($class, $f_class) = @_;
- eval "require $f_class";
- my $err = $@;
- Class::Inspector->loaded($f_class)
- or die $err || "require $f_class was successful but the package".
- "is not defined";
+ return if Class::Inspector->loaded($f_class);
+ eval "require $f_class"; # require needs a bareword or filename
+ if ($@) {
+ if ($class->can('throw_exception')) {
+ $class->throw_exception($@);
+ } else {
+ croak $@;
+ }
+ }
+}
+
+# Returns true if the specified class is installed or already loaded, false
+# otherwise
+sub ensure_class_found {
+ my ($class, $f_class) = @_;
+ return Class::Inspector->loaded($f_class) ||
+ Class::Inspector->installed($f_class);
+}
+
+# Returns a true value if the specified class is installed and loaded
+# successfully, throws an exception if the class is found but not loaded
+# successfully, and false if the class is not installed
+sub load_optional_class {
+ my ($class, $f_class) = @_;
+ if ($class->ensure_class_found($f_class)) {
+ $class->ensure_class_loaded($f_class);
+ return 1;
+ } else {
+ return 0;
+ }
}
1;