NAME
DBIx::SQLEngine::Record::Class - Factory for Record Classes
SYNOPSIS
Setup: Several ways to create a class.
$sqldb = DBIx::SQLEngine->new( ... );
$class_name = $sqldb->record_class( $table_name, @traits );
$sqldb->record_class( $table_name, $class_name, @traits );
package My::Record;
use DBIx::SQLEngine::Record::Class '-isasubclass', 'Table', 'Hooks';
My::Record->table( $sqldb->table($table_name) );
Basics: Common operations on a record.
$record = $class_name->new_with_values(somefield => 'My Value');
print $record->get_values( 'somefield' );
$record->change_values( somefield => 'New Value' );
Fetch: Retrieve records by ID or other query.
$record = $class_name->select_record( $primary_key );
@records = $class_name->fetch_select(%clauses)->records;
Modify: Write changes to the data source.
$record->insert_record();
$record->update_record();
$record->delete_record();
DESCRIPTION
DBIx::SQLEngine::Record::Class is a factory for Record classes.
You can use this package to create a class whose instances represent each of the rows in a SQL database table.
CLASS INSTANTIATION
Subclass Factory
- import
-
package My::Record; use DBIx::SQLEngine::Record::Class '-isasubclass'; use DBIx::SQLEngine::Record::Class '-isasubclass', @Traits;
Allows for a simple declaration of inheritance.
Mixin Class Factory
- class()
-
$factory->class() : $base_class $factory->class( @traits ) : $class_name
Build an ad-hod class with mixins.
See the documentation for Class::MixinFactory to learn more about developing custom mixin classes.
The MixinFactory is configured with the following package names:
- base_class
-
DBIx::SQLEngine::Record::Base
- mixin_prefix
-
DBIx::SQLEngine::Record
- mixed_prefix
-
DBIx::SQLEngine::Record::AUTO
Record Class Creation
- new_subclass()
-
DBIx::SQLEngine::Record::Class->new_subclass( %options ) : $class_name
Subclass constructor. Accepts a hash of options with the following keys:
- 'name'
-
If you do not supply a class name, one is generated based on the table name, which must be provided.
If the class name does not contain a "::" package separator, it is prepended with DBIx::SQLEngine::Record::Auto:: to keep the namespace conflict-free.
- 'table'
-
You may provde a DBIx::SQLEngine::Schema::Table object or create the class without it and initialize it later.
- 'traits'
-
You may pass a reference to one or more trait names as a "traits" argument.
- subclass_for_table()
-
DBIx::SQLEngine::Record::Class->subclass_for_table( $table, $name, @traits ) : $class_name
Convenience method for common parameters. You are expected to provde a DBIx::SQLEngine::Schema::Table object.
- generate_subclass_name_for_table()
-
Called internally by new_subclass() if no class name is provided.
Cross-constructors from other objects:
- SQLEngine->record_class()
-
$sqldb->record_class( $tablename ) : $class_name $sqldb->record_class( $tablename, $name ) : $class_name $sqldb->record_class( $tablename, $name, @traits ) : $class_name
Convenience method to create a record class with the given table name.
- Table->record_class()
-
$table->record_class( ) : $class_name $table->record_class( $name ) : $class_name $table->record_class( $name, @traits ) : $class_name
Convenience method to create a record class for a given table object.
RECORD CLASS TRAITS
Depending on application, there are several different sets of features that one might or might not wish to have available on their record class.
Included Trait Classes
The following trait classes are included with this distribution:
- Accessors
-
Generates methods for getting and setting values in each record object.
- Cache
-
Provides a caching layer to avoid repeated selections of the same information.
- Hooks
-
Adds ok_, pre_, and post_ hooks to key methods. Any number of code refs can be registered to be called at key times, by class or for specific instances.
SEE ALSO
See DBIx::SQLEngine for the overall interface and developer documentation.
See DBIx::SQLEngine::Docs::ReadMe for general information about this distribution, including installation and license information.