Locale::MakePhrase::BackingStore 0.5

Locale::MakePhrase::BackingStore is a base-class of the backing store functionality.

This is a base-class, of storage-specific implementations for the Locale::MakePhrase module.

The backing-store may choose to implement seperate files for each language, or a single file for all languages. It may choose to implement database lookup... and so on.

This base class implements a generic implementation, which can be used as a starting point. You should also look at Locale::MakePhrase::BackingStore:: for more examples.

Locale::MakePhrase implements the following backing stores:
Single file for all languages (see backing store: File)
Files stored within a directory (see backing store: Directory)

Generic database table (see backing store: Database)
PostgreSQL database table (see backing store: Database::PostgreSQL)

Alternatively, you could implement an application specific backing store by doing the following:

Make a package which derives from this class.

Implement the init() method, retrieving any options that may have been supplied to the constructor.

Overload the get_rules() method, returning a list-reference of Locale::MakePhrase::LanguageRule objects, from the translations available from your backing store.

For an implementation which uses a text file, this could mean that you would load the text file if it has changed, constructing the rule objects during the load, then return a list-reference of objects which match the request.

For a database implementation, you would need to query the database for translations which match the request, then construct rule objects from those translations.

API

The following methods are implemented:

new()

Construct a backing store instance; arguments are passed to the init() method.

$self init([...])

Allow sub-class to control construction. The sub-class must return itself, so as to make construction succeed.

@rule_objs get_rules($context,$key,@languages)

Returns a list-reference of rule objects which have just been retrieved from the storage mechanism. The objects will have been based on the values of the $context (which is a stringified version of whatever get passed to context_translate or a value of undef), the $key (which is your application text string) and the language tags that Locale::MakePhrase determined for this instance.

Since this is a base class, you need to supply a real implementation, although you can still use Locale::MakePhrase with this minimal implementation, so as to allow you to continue application development.

$rule_obj make_rule()

This is a helper routine for making a LanguageRule object. ie: you would use it like this, within your get_rules() method:

sub get_rules {
...
my $rule_obj = $self->make_rule(
key => $key,
language => $lang,
expression => $expression,
priority => $priority,
translation => $translation,
);
...
}

Thus, it takes a hash or hash_ref with the options: key, language, expression, priority and translation

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· Perl