rdfx.install

<?php
// $Id$

/**
 * @file
 * Install, update and uninstall functions for the rdfx module.
 */

/**
 * Implements hook_schema().
 */
function rdfx_schema() {
  $schema['rdfx_vocabulary_graphs'] = array(
    'description' => 'Vocabulary graph, including stubs for any external terms.',
    'fields' => array(
      'gid' => array(
        'description' => 'Graph ID.',
        'type' => 'serial',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'main_ns' => array(
        'description' => 'The {rdfx_namespaces}.nsid for this vocabulary.',
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'default' => 0,
      ),
      'date_created' => array(
        'description' => 'The Unix timestamp when the vocabulary was created or imported.',
        'type' => 'int',
        'not null' => TRUE,
        'default' => 0,
      ),
      'date_updated' => array(
        'description' => 'The Unix timestamp when the vocabulary was updated.',
        'type' => 'int',
        'not null' => TRUE,
        'default' => 0,
      ),
    ),
    'primary key' => array('gid'),
  );

  $schema['rdfx_namespaces'] = array(
    'description' => 'Namespace mappings defined in the vocabulary graph. Mappings are defined on a per graph basis (i.e. foaf will be defined multiple times, once for each vocabulary graph that uses foaf terms).',
    'fields' => array(
      'nsid' => array(
        'description' => 'Namespace ID.',
        'type' => 'serial',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'gid' => array(
        'description' => 'The {rdfx_vocabulary_graphs}.gid of the graph that defined this mapping.',
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'default' => 0,
      ),
      'prefix' => array(
        'description' => 'The prefix as defined by the user for the main namespace, and by the source file for the additional namespaces.',
        'type' => 'varchar',
        'length' => '255',
        'not null' => FALSE,
      ),
      'uri' => array(
        'description' => 'The URI as defined by the user for the main namespace, and by the source file for the additional namespaces.',
        'type' => 'varchar',
        'length' => '255',
        'not null' => TRUE,
      ),
    ),
    'primary key' => array('nsid'),
    'unique keys' => array(
      'gid_uri' => array('gid', 'uri'),
    ),
  );

  $schema['rdfx_terms'] = array(
    'description' => 'Terms defined or used in the vocabulary graph. Terms are stored on a per graph basis (i.e. foaf:Person will be stored once for each vocabulary graph that asserts something about it).',
    'fields' => array(
      'tid' => array(
        'description' => 'Term ID.',
        'type' => 'serial',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'nsid' => array(
        'description' => 'The {rdfx_namespaces}.nsid for this term.',
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'default' => 0,
      ),
      'local_name' => array(
        'description' => 'The local name of this term.',
        'type' => 'varchar',
        'length' => '255',
        'not null' => FALSE,
        'default' => '',
      ),
    ),
    'primary key' => array('tid'),
    'unique keys' => array(
      'nsid_ln' => array('nsid', 'local_name'),
    ),
  );

  $schema['rdfx_term_types'] = array(
    'description' => 'The RDFS and OWL types that apply to the term. Only terms within the main_ns of a vocabulary graph should have term types.',
    'fields' => array(
      'tid' => array(
        'description' => 'The {rdfx_terms}.tid of the term.',
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'type' => array(
        'description' => 'The term type. Types should use defined constants.',
        'type' => 'varchar',
        'length' => '32',
        'not null' => TRUE,
      ),
    ),
    'primary key' => array('tid', 'type'),
  );

  $schema['rdfx_vocabulary_details'] = array(
    'description' => 'Additional information about a vocabulary.',
    'fields' => array(
      'gid' => array(
        'description' => 'The {rdfx_vocabulary_graphs}.gid of the vocabulary graph.',
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'language' => array(
        'description' => 'The language code. Language codes should follow the format in _locale_get_predefined_list() in includes/iso.inc.',
        'type' => 'varchar',
        'length' => '12',
        'not null' => TRUE,
      ),
      'label' => array(
        'description' => 'The name of the vocabulary in language.',
        'type' => 'varchar',
        'length' => '255',
        'not null' => FALSE,
      ),
      'description' => array(
        'description' => 'The description of the vocabulary in language',
        'type' => 'varchar',
        'length' => '4095',
        'not null' => FALSE,
      ),
    ),
    'primary key' => array('gid', 'language'),
  );

  $schema['rdfx_term_details'] = array(
    'description' => 'Additional information about a term. Only terms within the main_ns of a vocabulary graph should have term details.',
    'fields' => array(
      'tid' => array(
        'description' => 'The {rdfx_terms}.tid of the term.',
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'language' => array(
        'description' => 'The language code. Language codes should follow the format in _locale_get_predefined_list() in includes/iso.inc.',
        'type' => 'varchar',
        'length' => '12',
        'not null' => TRUE,
      ),
      'label' => array(
        'description' => 'The label for term tid in language.',
        'type' => 'varchar',
        'length' => '255',
        'not null' => FALSE,
      ),
      'comment' => array(
        'description' => 'The comment for term tid in language',
        'type' => 'varchar',
        'length' => '4095',
        'not null' => FALSE,
      ),
    ),
    'primary key' => array('tid', 'language'),
  );

  $schema['rdfx_term_domains'] = array(
    'description' => 'Domains of properties. Properties within the main_ns can declare classes outside of the main_ns as domains, but not vice versa.',
    'fields' => array(
      'tid' => array(
        'description' => 'The {rdfx_terms}.tid of the property.',
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'domain_tid' => array(
        'description' => 'The {rdfx_terms}.tid of the domain class.',
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
    ),
    'primary key' => array('tid', 'domain_tid'),
  );

  $schema['rdfx_term_inverses'] = array(
    'description' => 'Inverse properties.',
    'fields' => array(
      'tid' => array(
        'description' => 'The {rdfx_terms}.tid of the property.',
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'inverse_tid' => array(
        'description' => 'The {rdfx_terms}.tid of the inverse property.',
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
    ),
    'primary key' => array('tid', 'inverse_tid'),
  );

  $schema['rdfx_term_ranges'] = array(
    'description' => 'Ranges of properties. Properties within the main_ns can declare classes outside of the main_ns as ranges, but not vice versa.',
    'fields' => array(
      'tid' => array(
        'description' => 'The {rdfx_terms}.tid of the property.',
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'range_tid' => array(
        'description' => 'The {rdfx_terms}.tid of the range class.',
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
    ),
    'primary key' => array('tid', 'range_tid'),
  );

  $schema['rdfx_term_superclasses'] = array(
    'description' => 'Superclasses of classes. Classes within the main_ns can declare classes outside of the main_ns as superclasses, but not as subclasses.',
    'fields' => array(
      'tid' => array(
        'description' => 'The {rdfx_terms}.tid of the subclass.',
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'superclass_tid' => array(
        'description' => 'The {rdfx_terms}.tid of the superclass.',
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
    ),
    'primary key' => array('tid', 'superclass_tid'),
  );

  $schema['rdfx_term_superproperties'] = array(
    'description' => 'Superproperties of properties. Properties within the main_ns can declare properties outside of the main_ns as superproperties, but not as subproperties.',
    'fields' => array(
      'tid' => array(
        'description' => 'The {rdfx_terms}.tid of the subproperty.',
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'superproperty_tid' => array(
        'description' => 'The {rdfx_terms}.tid of the superproperty.',
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
    ),
    'primary key' => array('tid', 'superproperty_tid'),
  );

  return $schema;
}