drupal/modules/taxonomy/taxonomy.install

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<?php
// $Id$
/**
* Implementation of hook_schema().
*/
function taxonomy_schema() {
$schema['term_data'] = array(
'description' => t('Stores term information.'),
'fields' => array(
'tid' => array(
'type' => 'serial',
'unsigned' => TRUE,
'not null' => TRUE,
'description' => t('Primary Key: Unique term ID.'),
),
'vid' => array(
'type' => 'int',
'unsigned' => TRUE,
'not null' => TRUE,
'default' => 0,
'description' => t('The {vocabulary}.vid of the vocabulary to which the term is assigned.'),
),
'name' => array(
'type' => 'varchar',
'length' => 255,
'not null' => TRUE,
'default' => '',
'description' => t('The term name.'),
),
'description' => array(
'type' => 'text',
'not null' => FALSE,
'size' => 'big',
'description' => t('A description of the term.'),
),
'weight' => array(
'type' => 'int',
'not null' => TRUE,
'default' => 0,
'size' => 'tiny',
'description' => t('The weight of this term in relation to other terms.'),
),
),
'primary key' => array('tid'),
'unique keys' => array(
'vid_name' => array('vid', 'name'),
),
'indexes' => array('taxonomy_tree' => array('vid', 'weight', 'name')),
);
$schema['term_hierarchy'] = array(
'description' => t('Stores the hierarchical relationship between terms.'),
'fields' => array(
'tid' => array(
'type' => 'int',
'unsigned' => TRUE,
'not null' => TRUE,
'default' => 0,
'description' => t('Primary Key: The {term_data}.tid of the term.'),
),
'parent' => array(
'type' => 'int',
'unsigned' => TRUE,
'not null' => TRUE,
'default' => 0,
'description' => t("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' => t('Stores the relationship of terms to nodes.'),
'fields' => array(
'nid' => array(
'type' => 'int',
'unsigned' => TRUE,
'not null' => TRUE,
'default' => 0,
'description' => t('Primary Key: The {node}.nid of the node.'),
),
'vid' => array(
'type' => 'int',
'unsigned' => TRUE,
'not null' => TRUE,
'default' => 0,
'description' => t('Primary Key: The {node}.vid of the node.'),
),
'tid' => array(
'type' => 'int',
'unsigned' => TRUE,
'not null' => TRUE,
'default' => 0,
'description' => t('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' => t('Stores non-hierarchical relationships between terms.'),
'fields' => array(
'trid' => array(
'type' => 'serial',
'not null' => TRUE,
'description' => t('Primary Key: Unique term relation ID.'),
),
'tid1' => array(
'type' => 'int',
'unsigned' => TRUE,
'not null' => TRUE,
'default' => 0,
'description' => t('The {term_data}.tid of the first term in a relationship.'),
),
'tid2' => array(
'type' => 'int',
'unsigned' => TRUE,
'not null' => TRUE,
'default' => 0,
'description' => t('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' => t('Stores term synonyms.'),
'fields' => array(
'tsid' => array(
'type' => 'serial',
'not null' => TRUE,
'description' => t('Primary Key: Unique term synonym ID.'),
),
'tid' => array(
'type' => 'int',
'unsigned' => TRUE,
'not null' => TRUE,
'default' => 0,
'description' => t('The {term_data}.tid of the term.'),
),
'name' => array(
'type' => 'varchar',
'length' => 255,
'not null' => TRUE,
'default' => '',
'description' => t('The name of the synonym.'),
),
),
'unique keys' => array(
'name_tid' => array('name', 'tid'),
),
'indexes' => array(
'tid' => array('tid'),
),
'primary key' => array('tsid'),
);
$schema['vocabulary'] = array(
'description' => t('Stores vocabulary information.'),
'fields' => array(
'vid' => array(
'type' => 'serial',
'unsigned' => TRUE,
'not null' => TRUE,
'description' => t('Primary Key: Unique vocabulary ID.'),
),
'name' => array(
'type' => 'varchar',
'length' => 255,
'not null' => TRUE,
'default' => '',
'description' => t('Name of the vocabulary.'),
),
'description' => array(
'type' => 'text',
'not null' => FALSE,
'size' => 'big',
'description' => t('Description of the vocabulary.'),
),
'help' => array(
'type' => 'varchar',
'length' => 255,
'not null' => TRUE,
'default' => '',
'description' => t('Help text to display for the vocabulary.'),
),
'relations' => array(
'type' => 'int',
'unsigned' => TRUE,
'not null' => TRUE,
'default' => 0,
'size' => 'tiny',
'description' => t('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' => t('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' => t('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' => t('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' => t('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' => t('The module which created the vocabulary.'),
),
'weight' => array(
'type' => 'int',
'not null' => TRUE,
'default' => 0,
'size' => 'tiny',
'description' => t('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' => t('Stores which node types vocabularies may be used with.'),
'fields' => array(
'vid' => array(
'type' => 'int',
'unsigned' => TRUE,
'not null' => TRUE,
'default' => 0,
'description' => t('Primary Key: the {vocabulary}.vid of the vocabulary.'),
),
'type' => array(
'type' => 'varchar',
'length' => 32,
'not null' => TRUE,
'default' => '',
'description' => t('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;
}