<?php

// $Id: taxonomy.install,v 1.7.2.1 2009/01/06 15:46:38 goba Exp $

/**

 * Implementation of hook_schema().

 */

function taxonomy_schema() {

  $schema['term_data'] = array(

    'description' => 'Stores term information.',

    'fields' => array(

      'tid' => array(

        'type' => 'serial',

        'unsigned' => TRUE,

        'not null' => TRUE,

        'description' => 'Primary Key: Unique term ID.',

      ),

      'vid' => array(

        'type' => 'int',

        'unsigned' => TRUE,

        'not null' => TRUE,

        'default' => 0,

        'description' => 'The {vocabulary}.vid of the vocabulary to which the term is assigned.',

      ),

      'name' => array(

        'type' => 'varchar',

        'length' => 255,

        'not null' => TRUE,

        'default' => '',

        'description' => 'The term name.',

      ),

      'description' => array(

        'type' => 'text',

        'not null' => FALSE,

        'size' => 'big',

        'description' => 'A description of the term.',

      ),

      'weight' => array(

        'type' => 'int',

        'not null' => TRUE,

        'default' => 0,

        'size' => 'tiny',

        'description' => 'The weight of this term in relation to other terms.',

      ),

    ),

    'primary key' => array('tid'),

    'indexes' => array(

      'taxonomy_tree' => array('vid', 'weight', 'name'),

      'vid_name' => array('vid', 'name'),

    ),

  );

  $schema['term_hierarchy'] = array(

    'description' => 'Stores the hierarchical relationship between terms.',

    'fields' => array(

      'tid' => array(

        'type' => 'int',

        'unsigned' => TRUE,

        'not null' => TRUE,

        'default' => 0,

        'description' => 'Primary Key: The {term_data}.tid of the term.',

      ),

      'parent' => array(

        'type' => 'int',

        'unsigned' => TRUE,

        'not null' => TRUE,

        'default' => 0,

        'description' => "Primary Key: The {term_data}.tid of the term's parent. 0 indicates no parent.",

      ),

    ),

    'indexes' => array(

      'parent' => array('parent'),

    ),

    'primary key' => array('tid', 'parent'),

  );

  $schema['term_node'] = array(

    'description' => 'Stores the relationship of terms to nodes.',

    'fields' => array(

      'nid' => array(

        'type' => 'int',

        'unsigned' => TRUE,

        'not null' => TRUE,

        'default' => 0,

        'description' => 'Primary Key: The {node}.nid of the node.',

      ),

      'vid' => array(

        'type' => 'int',

        'unsigned' => TRUE,

        'not null' => TRUE,

        'default' => 0,

        'description' => 'Primary Key: The {node}.vid of the node.',

      ),

      'tid' => array(

        'type' => 'int',

        'unsigned' => TRUE,

        'not null' => TRUE,

        'default' => 0,

        'description' => 'Primary Key: The {term_data}.tid of a term assigned to the node.',

      ),

    ),

    'indexes' => array(

      'vid' => array('vid'),

      'nid' => array('nid'),

    ),

    'primary key' => array('tid', 'vid'),

  );

  $schema['term_relation'] = array(

    'description' => 'Stores non-hierarchical relationships between terms.',

    'fields' => array(

      'trid' => array(

        'type' => 'serial',

        'not null' => TRUE,

        'description' => 'Primary Key: Unique term relation ID.',

      ),

      'tid1' => array(

        'type' => 'int',

        'unsigned' => TRUE,

        'not null' => TRUE,

        'default' => 0,

        'description' => 'The {term_data}.tid of the first term in a relationship.',

      ),

      'tid2' => array(

        'type' => 'int',

        'unsigned' => TRUE,

        'not null' => TRUE,

        'default' => 0,

        'description' => 'The {term_data}.tid of the second term in a relationship.',

      ),

    ),

    'unique keys' => array(

      'tid1_tid2' => array('tid1', 'tid2'),

    ),

    'indexes' => array(

      'tid2' => array('tid2'),

    ),

    'primary key' => array('trid'),

  );

  $schema['term_synonym'] = array(

    'description' => 'Stores term synonyms.',

    'fields' => array(

      'tsid' => array(

        'type' => 'serial',

        'not null' => TRUE,

        'description' => 'Primary Key: Unique term synonym ID.',

      ),

      'tid' => array(

        'type' => 'int',

        'unsigned' => TRUE,

        'not null' => TRUE,

        'default' => 0,

        'description' => 'The {term_data}.tid of the term.',

      ),

      'name' => array(

        'type' => 'varchar',

        'length' => 255,

        'not null' => TRUE,

        'default' => '',

        'description' => 'The name of the synonym.',

      ),

    ),

    'indexes' => array(

      'tid' => array('tid'),

      'name_tid' => array('name', 'tid'),

    ),

    'primary key' => array('tsid'),

  );

  $schema['vocabulary'] = array(

    'description' => 'Stores vocabulary information.',

    'fields' => array(

      'vid' => array(

        'type' => 'serial',

        'unsigned' => TRUE,

        'not null' => TRUE,

        'description' => 'Primary Key: Unique vocabulary ID.',

      ),

      'name' => array(

        'type' => 'varchar',

        'length' => 255,

        'not null' => TRUE,

        'default' => '',

        'description' => 'Name of the vocabulary.',

      ),

      'description' => array(

        'type' => 'text',

        'not null' => FALSE,

        'size' => 'big',

        'description' => 'Description of the vocabulary.',

      ),

      'help' => array(

        'type' => 'varchar',

        'length' => 255,

        'not null' => TRUE,

        'default' => '',

        'description' => 'Help text to display for the vocabulary.',

      ),

      'relations' => array(

        'type' => 'int',

        'unsigned' => TRUE,

        'not null' => TRUE,

        'default' => 0,

        'size' => 'tiny',

        'description' => 'Whether or not related terms are enabled within the vocabulary. (0 = disabled, 1 = enabled)',

      ),

      'hierarchy' => array(

        'type' => 'int',

        'unsigned' => TRUE,

        'not null' => TRUE,

        'default' => 0,

        'size' => 'tiny',

        'description' => 'The type of hierarchy allowed within the vocabulary. (0 = disabled, 1 = single, 2 = multiple)',

      ),

      'multiple' => array(

        'type' => 'int',

        'unsigned' => TRUE,

        'not null' => TRUE,

        'default' => 0,

        'size' => 'tiny',

        'description' => 'Whether or not multiple terms from this vocabulary may be assigned to a node. (0 = disabled, 1 = enabled)',

      ),

      'required' => array(

        'type' => 'int',

        'unsigned' => TRUE,

        'not null' => TRUE,

        'default' => 0,

        'size' => 'tiny',

        'description' => 'Whether or not terms are required for nodes using this vocabulary. (0 = disabled, 1 = enabled)',

      ),

      'tags' => array(

        'type' => 'int',

        'unsigned' => TRUE,

        'not null' => TRUE,

        'default' => 0,

        'size' => 'tiny',

        'description' => 'Whether or not free tagging is enabled for the vocabulary. (0 = disabled, 1 = enabled)',

      ),

      'module' => array(

        'type' => 'varchar',

        'length' => 255,

        'not null' => TRUE,

        'default' => '',

        'description' => 'The module which created the vocabulary.',

      ),

      'weight' => array(

        'type' => 'int',

        'not null' => TRUE,

        'default' => 0,

        'size' => 'tiny',

        'description' => 'The weight of the vocabulary in relation to other vocabularies.',

      ),

    ),

    'primary key' => array('vid'),

    'indexes' => array(

      'list' => array('weight', 'name'),

    ),

  );

  $schema['vocabulary_node_types'] = array(

    'description' => 'Stores which node types vocabularies may be used with.',

    'fields' => array(

      'vid' => array(

        'type' => 'int',

        'unsigned' => TRUE,

        'not null' => TRUE,

        'default' => 0,

        'description' => 'Primary Key: the {vocabulary}.vid of the vocabulary.',

      ),

      'type' => array(

        'type' => 'varchar',

        'length' => 32,

        'not null' => TRUE,

        'default' => '',

        'description' => 'The {node}.type of the node type for which the vocabulary may be used.',

      ),

    ),

    'primary key' => array('type', 'vid'),

    'indexes' => array(

      'vid' => array('vid'),

    ),

  );

  return $schema;

}