taxonomy.install

<?php


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

/**
 * Implements hook_uninstall().
 */
function taxonomy_uninstall() {
    // Remove variables.
    variable_del('taxonomy_override_selector');
    variable_del('taxonomy_terms_per_page_admin');
    // Remove taxonomy_term bundles.
    $vocabularies = db_query("SELECT machine_name FROM {taxonomy_vocabulary}")->fetchCol();
    foreach ($vocabularies as $vocabulary) {
        field_attach_delete_bundle('taxonomy_term', $vocabulary);
    }
}

/**
 * Implements hook_schema().
 */
function taxonomy_schema() {
    $schema['taxonomy_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 {taxonomy_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.',
                'translatable' => TRUE,
            ),
            'description' => array(
                'type' => 'text',
                'not null' => FALSE,
                'size' => 'big',
                'description' => 'A description of the term.',
                'translatable' => TRUE,
            ),
            'format' => array(
                'type' => 'varchar',
                'length' => 255,
                'not null' => FALSE,
                'description' => 'The {filter_format}.format of the description.',
            ),
            'weight' => array(
                'type' => 'int',
                'not null' => TRUE,
                'default' => 0,
                'description' => 'The weight of this term in relation to other terms.',
            ),
        ),
        'primary key' => array(
            'tid',
        ),
        'foreign keys' => array(
            'vocabulary' => array(
                'table' => 'taxonomy_vocabulary',
                'columns' => array(
                    'vid' => 'vid',
                ),
            ),
        ),
        'indexes' => array(
            'taxonomy_tree' => array(
                'vid',
                'weight',
                'name',
            ),
            'vid_name' => array(
                'vid',
                'name',
            ),
            'name' => array(
                'name',
            ),
        ),
    );
    $schema['taxonomy_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 {taxonomy_term_data}.tid of the term.',
            ),
            'parent' => array(
                'type' => 'int',
                'unsigned' => TRUE,
                'not null' => TRUE,
                'default' => 0,
                'description' => "Primary Key: The {taxonomy_term_data}.tid of the term's parent. 0 indicates no parent.",
            ),
        ),
        'indexes' => array(
            'parent' => array(
                'parent',
            ),
        ),
        'foreign keys' => array(
            'taxonomy_term_data' => array(
                'table' => 'taxonomy_term_data',
                'columns' => array(
                    'tid' => 'tid',
                ),
            ),
        ),
        'primary key' => array(
            'tid',
            'parent',
        ),
    );
    $schema['taxonomy_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.',
                'translatable' => TRUE,
            ),
            'machine_name' => array(
                'type' => 'varchar',
                'length' => 255,
                'not null' => TRUE,
                'default' => '',
                'description' => 'The vocabulary machine name.',
            ),
            'description' => array(
                'type' => 'text',
                'not null' => FALSE,
                'size' => 'big',
                'description' => 'Description of the vocabulary.',
                'translatable' => TRUE,
            ),
            '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)',
            ),
            '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,
                'description' => 'The weight of this vocabulary in relation to other vocabularies.',
            ),
        ),
        'primary key' => array(
            'vid',
        ),
        'indexes' => array(
            'list' => array(
                'weight',
                'name',
            ),
        ),
        'unique keys' => array(
            'machine_name' => array(
                'machine_name',
            ),
        ),
    );
    $schema['taxonomy_index'] = array(
        'description' => 'Maintains denormalized information about node/term relationships.',
        'fields' => array(
            'nid' => array(
                'description' => 'The {node}.nid this record tracks.',
                'type' => 'int',
                'unsigned' => TRUE,
                'not null' => TRUE,
                'default' => 0,
            ),
            'tid' => array(
                'description' => 'The term ID.',
                'type' => 'int',
                'unsigned' => TRUE,
                'not null' => TRUE,
                'default' => 0,
            ),
            'sticky' => array(
                'description' => 'Boolean indicating whether the node is sticky.',
                'type' => 'int',
                'not null' => FALSE,
                'default' => 0,
                'size' => 'tiny',
            ),
            'created' => array(
                'description' => 'The Unix timestamp when the node was created.',
                'type' => 'int',
                'not null' => TRUE,
                'default' => 0,
            ),
        ),
        'indexes' => array(
            'term_node' => array(
                'tid',
                'sticky',
                'created',
            ),
            'nid' => array(
                'nid',
            ),
        ),
        'foreign keys' => array(
            'tracked_node' => array(
                'table' => 'node',
                'columns' => array(
                    'nid' => 'nid',
                ),
            ),
            'term' => array(
                'table' => 'taxonomy_term_data',
                'columns' => array(
                    'tid' => 'tid',
                ),
            ),
        ),
    );
    return $schema;
}

/**
 * Implements hook_field_schema().
 */
function taxonomy_field_schema($field) {
    return array(
        'columns' => array(
            'tid' => array(
                'type' => 'int',
                'unsigned' => TRUE,
                'not null' => FALSE,
            ),
        ),
        'indexes' => array(
            'tid' => array(
                'tid',
            ),
        ),
        'foreign keys' => array(
            'tid' => array(
                'table' => 'taxonomy_term_data',
                'columns' => array(
                    'tid' => 'tid',
                ),
            ),
        ),
    );
}

/**
 * Implements hook_update_dependencies().
 */
function taxonomy_update_dependencies() {
    // taxonomy_update_7004() migrates taxonomy term data to fields and therefore
    // must run after all Field modules have been enabled, which happens in
    // system_update_7027().
    $dependencies['taxonomy'][7004] = array(
        'system' => 7027,
    );
    return $dependencies;
}

/**
 * Utility function: get the list of vocabularies directly from the database.
 *
 * This function is valid for a database schema version 7002.
 *
 * @ingroup update_api
 */
function _update_7002_taxonomy_get_vocabularies() {
    return db_query('SELECT v.* FROM {taxonomy_vocabulary} v ORDER BY v.weight, v.name')->fetchAllAssoc('vid', PDO::FETCH_OBJ);
}

/**
 * Rename taxonomy tables.
 */
function taxonomy_update_7001() {
    db_rename_table('term_data', 'taxonomy_term_data');
    db_rename_table('term_hierarchy', 'taxonomy_term_hierarchy');
    db_rename_table('term_node', 'taxonomy_term_node');
    db_rename_table('term_relation', 'taxonomy_term_relation');
    db_rename_table('term_synonym', 'taxonomy_term_synonym');
    db_rename_table('vocabulary', 'taxonomy_vocabulary');
    db_rename_table('vocabulary_node_types', 'taxonomy_vocabulary_node_type');
}

/**
 * Add {vocabulary}.machine_name column.
 */
function taxonomy_update_7002() {
    $field = array(
        'type' => 'varchar',
        'length' => 255,
        'not null' => TRUE,
        'default' => '',
        'description' => 'The vocabulary machine name.',
    );
    db_add_field('taxonomy_vocabulary', 'machine_name', $field);
    // Do a direct query here, rather than calling taxonomy_get_vocabularies(),
    // in case Taxonomy module is disabled.
    $vids = db_query('SELECT vid FROM {taxonomy_vocabulary}')->fetchCol();
    foreach ($vids as $vid) {
        $machine_name = 'vocabulary_' . $vid;
        db_update('taxonomy_vocabulary')->fields(array(
            'machine_name' => $machine_name,
        ))
            ->condition('vid', $vid)
            ->execute();
    }
    // The machine_name unique key can only be added after we ensure the
    // machine_name column contains unique values.
    db_add_unique_key('taxonomy_vocabulary', 'machine_name', array(
        'machine_name',
    ));
}

/**
 * Remove the related terms setting from vocabularies.
 *
 * This setting has not been used since Drupal 6. The {taxonomy_relations} table
 * itself is retained to allow for data to be upgraded.
 */
function taxonomy_update_7003() {
    db_drop_field('taxonomy_vocabulary', 'relations');
}

/**
 * Move taxonomy vocabulary associations for nodes to fields and field instances.
 */
function taxonomy_update_7004() {
    $taxonomy_index = array(
        'description' => 'Maintains denormalized information about node/term relationships.',
        'fields' => array(
            'nid' => array(
                'description' => 'The {node}.nid this record tracks.',
                'type' => 'int',
                'unsigned' => TRUE,
                'not null' => TRUE,
                'default' => 0,
            ),
            'tid' => array(
                'description' => 'The term ID.',
                'type' => 'int',
                'unsigned' => TRUE,
                'not null' => TRUE,
                'default' => 0,
            ),
            'sticky' => array(
                'description' => 'Boolean indicating whether the node is sticky.',
                'type' => 'int',
                'not null' => FALSE,
                'default' => 0,
                'size' => 'tiny',
            ),
            'created' => array(
                'description' => 'The Unix timestamp when the node was created.',
                'type' => 'int',
                'unsigned' => TRUE,
                'not null' => TRUE,
                'default' => 0,
            ),
        ),
        'indexes' => array(
            'term_node' => array(
                'tid',
                'sticky',
                'created',
            ),
            'nid' => array(
                'nid',
            ),
        ),
        'foreign keys' => array(
            'tracked_node' => array(
                'table' => 'node',
                'columns' => array(
                    'nid' => 'nid',
                ),
            ),
            'term' => array(
                'table' => 'taxonomy_term_data',
                'columns' => array(
                    'tid' => 'tid',
                ),
            ),
        ),
    );
    db_create_table('taxonomy_index', $taxonomy_index);
    // Use an inline version of Drupal 6 taxonomy_get_vocabularies() here since
    // we can no longer rely on $vocabulary->nodes from the API function.
    $result = db_query('SELECT v.*, n.type FROM {taxonomy_vocabulary} v LEFT JOIN {taxonomy_vocabulary_node_type} n ON v.vid = n.vid ORDER BY v.weight, v.name');
    $vocabularies = array();
    foreach ($result as $record) {
        // If no node types are associated with a vocabulary, the LEFT JOIN will
        // return a NULL value for type.
        if (isset($record->type)) {
            $node_types[$record->vid][$record->type] = $record->type;
            unset($record->type);
            $record->nodes = $node_types[$record->vid];
        }
        elseif (!isset($record->nodes)) {
            $record->nodes = array();
        }
        $vocabularies[$record->vid] = $record;
    }
    foreach ($vocabularies as $vocabulary) {
        $field_name = 'taxonomy_' . $vocabulary->machine_name;
        $field = array(
            'field_name' => $field_name,
            'module' => 'taxonomy',
            'type' => 'taxonomy_term_reference',
            'cardinality' => $vocabulary->multiple || $vocabulary->tags ? FIELD_CARDINALITY_UNLIMITED : 1,
            'settings' => array(
                'required' => $vocabulary->required ? TRUE : FALSE,
                'allowed_values' => array(
                    array(
                        'vocabulary' => $vocabulary->machine_name,
                        'parent' => 0,
                    ),
                ),
            ),
        );
        _update_7000_field_create_field($field);
        foreach ($vocabulary->nodes as $bundle) {
            $instance = array(
                'label' => $vocabulary->name,
                'field_name' => $field_name,
                'bundle' => $bundle,
                'entity_type' => 'node',
                'settings' => array(),
                'description' => $vocabulary->help,
                'required' => $vocabulary->required,
                'widget' => array(),
                'display' => array(
                    'default' => array(
                        'type' => 'taxonomy_term_reference_link',
                        'weight' => 10,
                    ),
                    'teaser' => array(
                        'type' => 'taxonomy_term_reference_link',
                        'weight' => 10,
                    ),
                ),
            );
            if ($vocabulary->tags) {
                $instance['widget'] = array(
                    'type' => 'taxonomy_autocomplete',
                    'module' => 'taxonomy',
                    'settings' => array(
                        'size' => 60,
                        'autocomplete_path' => 'taxonomy/autocomplete',
                    ),
                );
            }
            else {
                $instance['widget'] = array(
                    'type' => 'options_select',
                    'module' => 'options',
                    'settings' => array(),
                );
            }
            _update_7000_field_create_instance($field, $instance);
        }
    }
    // Some contrib projects stored term node associations without regard for the
    // selections in the taxonomy_vocabulary_node_types table, or have more terms
    // for a single node than the vocabulary allowed. We construct the
    // taxonomyextra field to store all the extra stuff.
    // Allowed values for this extra vocabs field is every vocabulary.
    $allowed_values = array();
    foreach (_update_7002_taxonomy_get_vocabularies() as $vocabulary) {
        $allowed_values[] = array(
            'vocabulary' => $vocabulary->machine_name,
            'parent' => 0,
        );
    }
    $field_name = 'taxonomyextra';
    $field = array(
        'field_name' => $field_name,
        'module' => 'taxonomy',
        'type' => 'taxonomy_term_reference',
        'cardinality' => FIELD_CARDINALITY_UNLIMITED,
        'settings' => array(
            'required' => FALSE,
            'allowed_values' => $allowed_values,
        ),
    );
    _update_7000_field_create_field($field);
    foreach (_update_7000_node_get_types() as $bundle) {
        $instance = array(
            'label' => 'Taxonomy upgrade extras',
            'field_name' => $field_name,
            'entity_type' => 'node',
            'bundle' => $bundle->type,
            'settings' => array(),
            'description' => 'Debris left over after upgrade from Drupal 6',
            'required' => FALSE,
            'widget' => array(
                'type' => 'taxonomy_autocomplete',
                'module' => 'taxonomy',
                'settings' => array(),
            ),
            'display' => array(
                'default' => array(
                    'type' => 'taxonomy_term_reference_link',
                    'weight' => 10,
                ),
                'teaser' => array(
                    'type' => 'taxonomy_term_reference_link',
                    'weight' => 10,
                ),
            ),
        );
        _update_7000_field_create_instance($field, $instance);
    }
    $fields = array(
        'help',
        'multiple',
        'required',
        'tags',
    );
    foreach ($fields as $field) {
        db_drop_field('taxonomy_vocabulary', $field);
    }
}

/**
 * Migrate {taxonomy_term_node} table to field storage.
 *
 * @todo: This function can possibly be made much faster by wrapping a
 * transaction around all the inserts.
 */
function taxonomy_update_7005(&$sandbox) {
    // $sandbox contents:
    // - total: The total number of term_node relationships to migrate.
    // - count: The number of term_node relationships that have been
    //   migrated so far.
    // - last: The db_query_range() offset to use when querying
    //   term_node; this field is incremented in quantities of $batch
    //   (1000) but at the end of each call to this function, last and
    //   count are the same.
    // - vocabularies: An associative array mapping vocabulary id and node
    //   type to field name. If a voc id/node type pair does not appear
    //   in this array but a term_node relationship exists mapping a
    //   term in voc id to node of that type, the relationship is
    //   assigned to the taxonomymyextra field which allows terms of all
    //   vocabularies.
    // - cursor[values], cursor[deltas]: The contents of $values and
    //   $deltas at the end of the previous call to this function. These
    //   need to be preserved across calls because a single batch of
    //   1000 rows from term_node may end in the middle of the terms for
    //   a single node revision.
    //
    // $values is the array of values about to be/most recently inserted
    // into the SQL data table for the taxonomy_term_reference
    // field. Before $values is constructed for each record, the
    // $values from the previous insert is checked to see if the two
    // records are for the same node revision id; this enables knowing
    // when to reset the delta counters which are incremented across all
    // terms for a single field on a single revision, but reset for each
    // new field and revision.
    //
    // $deltas is an associative array mapping field name to the number
    // of term references stored so far for the current revision, which
    // provides the delta value for each term reference data insert. The
    // deltas are reset for each new revision.
    $conditions = array(
        'type' => 'taxonomy_term_reference',
        'deleted' => 0,
    );
    $field_info = _update_7000_field_read_fields($conditions, 'field_name');
    // This is a multi-pass update. On the first call we need to initialize some
    // variables.
    if (!isset($sandbox['total'])) {
        $sandbox['last'] = 0;
        $sandbox['count'] = 0;
        // Run the same joins as the query that is used later to retrieve the
        // term_node data, this ensures that bad records in that table - for
        // tids which aren't in taxonomy_term_data or nids which aren't in {node}
        // are not included in the count.
        $sandbox['total'] = db_query('SELECT COUNT(*) FROM {taxonomy_term_data} td INNER JOIN {taxonomy_term_node} tn ON td.tid = tn.tid INNER JOIN {node} n ON tn.nid = n.nid LEFT JOIN {node} n2 ON tn.vid = n2.vid')->fetchField();
        // Use an inline version of Drupal 6 taxonomy_get_vocabularies() here since
        // we can no longer rely on $vocabulary->nodes from the API function.
        $result = db_query('SELECT v.vid, v.machine_name, n.type FROM {taxonomy_vocabulary} v INNER JOIN {taxonomy_vocabulary_node_type} n ON v.vid = n.vid');
        $vocabularies = array();
        foreach ($result as $record) {
            // If no node types are associated with a vocabulary, the LEFT JOIN will
            // return a NULL value for type.
            if (isset($record->type)) {
                $vocabularies[$record->vid][$record->type] = 'taxonomy_' . $record->machine_name;
            }
        }
        if (!empty($vocabularies)) {
            $sandbox['vocabularies'] = $vocabularies;
        }
        db_create_table('taxonomy_update_7005', array(
            'description' => 'Stores temporary data for taxonomy_update_7005.',
            'fields' => array(
                'n' => array(
                    'description' => 'Preserve order.',
                    'type' => 'serial',
                    'unsigned' => TRUE,
                    'not null' => TRUE,
                ),
                'vocab_id' => array(
                    'type' => 'int',
                    'unsigned' => TRUE,
                    'not null' => TRUE,
                    'default' => 0,
                ),
                'tid' => array(
                    'type' => 'int',
                    'unsigned' => TRUE,
                    'not null' => TRUE,
                ),
                'nid' => array(
                    'type' => 'int',
                    'unsigned' => TRUE,
                    'not null' => TRUE,
                ),
                'vid' => array(
                    'type' => 'int',
                    'unsigned' => TRUE,
                    'not null' => FALSE,
                    'default' => NULL,
                ),
                'type' => array(
                    'type' => 'varchar',
                    'length' => 32,
                    'not null' => TRUE,
                    'default' => '',
                ),
                'created' => array(
                    'type' => 'int',
                    'not null' => FALSE,
                ),
                'sticky' => array(
                    'type' => 'int',
                    'not null' => FALSE,
                ),
                'status' => array(
                    'type' => 'int',
                    'not null' => FALSE,
                ),
                'is_current' => array(
                    'type' => 'int',
                    'unsigned' => TRUE,
                    'not null' => FALSE,
                ),
            ),
            'primary key' => array(
                'n',
            ),
        ));
        // Query selects all revisions at once and processes them in revision and
        // term weight order.
        $query = db_select('taxonomy_term_data', 'td');
        // We are migrating term-node relationships. If there are none for a
        // term, we do not need the term_data row.
        $query->join('taxonomy_term_node', 'tn', 'td.tid = tn.tid');
        // If a term-node relationship exists for a nid that does not exist, we
        // cannot migrate it as we have no node to relate it to; thus we do not
        // need that row from term_node.
        $query->join('node', 'n', 'tn.nid = n.nid');
        // If the current term-node relationship is for the current revision of
        // the node, this left join will match and is_current will be non-NULL
        // (we also get the current sticky and created in this case). This
        // tells us whether to insert into the current data tables in addition
        // to the revision data tables.
        $query->leftJoin('node', 'n2', 'tn.vid = n2.vid');
        $query->addField('td', 'vid', 'vocab_id');
        $query->addField('td', 'tid');
        $query->addField('tn', 'nid');
        $query->addField('tn', 'vid');
        $query->addField('n', 'type');
        $query->addField('n2', 'created');
        $query->addField('n2', 'sticky');
        $query->addField('n2', 'status');
        $query->addField('n2', 'nid', 'is_current');
        // This query must return a consistent ordering across multiple calls.
        // We need them ordered by node vid (since we use that to decide when
        // to reset the delta counters) and by term weight so they appear
        // within each node in weight order. However, tn.vid,td.weight is not
        // guaranteed to be unique, so we add tn.tid as an additional sort key
        // because tn.tid,tn.vid is the primary key of the D6 term_node table
        // and so is guaranteed unique. Unfortunately it also happens to be in
        // the wrong order which is less efficient, but c'est la vie.
        $query->orderBy('tn.vid');
        $query->orderBy('td.weight');
        $query->orderBy('tn.tid');
        // Work around a bug in the PostgreSQL driver that would result in fatal
        // errors when this subquery is used in the insert query below. See
        // https://drupal.org/node/2057693.
        $fields =& $query->getFields();
        unset($fields['td.weight']);
        unset($fields['tn.tid']);
        db_insert('taxonomy_update_7005')->from($query)
            ->execute();
    }
    else {
        // We do each pass in batches of 1000.
        $batch = 1000;
        $result = db_query_range('SELECT vocab_id, tid, nid, vid, type, created, sticky, status, is_current FROM {taxonomy_update_7005} ORDER BY n', $sandbox['last'], $batch);
        if (isset($sandbox['cursor'])) {
            $values = $sandbox['cursor']['values'];
            $deltas = $sandbox['cursor']['deltas'];
        }
        else {
            $deltas = array();
        }
        foreach ($result as $record) {
            $sandbox['count'] += 1;
            // Use the valid field for this vocabulary and node type or use the
            // overflow vocabulary if there is no valid field.
            $field_name = isset($sandbox['vocabularies'][$record->vocab_id][$record->type]) ? $sandbox['vocabularies'][$record->vocab_id][$record->type] : 'taxonomyextra';
            $field = $field_info[$field_name];
            // Start deltas from 0, and increment by one for each term attached to a
            // node.
            if (!isset($deltas[$field_name])) {
                $deltas[$field_name] = 0;
            }
            if (isset($values)) {
                // If the last inserted revision_id is the same as the current record,
                // use the previous deltas to calculate the next delta.
                if ($record->vid == $values[2]) {
                    // For limited cardinality fields, the delta must not be allowed to
                    // exceed the cardinality during the update. So ensure that the
                    // delta about to be inserted is within this limit.
                    // @see field_default_validate().
                    if ($field['cardinality'] != FIELD_CARDINALITY_UNLIMITED && $deltas[$field_name] + 1 > $field['cardinality']) {
                        // For excess values of a single-term vocabulary, switch over to
                        // the overflow field.
                        $field_name = 'taxonomyextra';
                        $field = $field_info[$field_name];
                        if (!isset($deltas[$field_name])) {
                            $deltas[$field_name] = 0;
                        }
                    }
                }
                else {
                    // When the record is a new revision, empty the deltas array.
                    $deltas = array(
                        $field_name => 0,
                    );
                }
            }
            // Table and column found in the field's storage details. During upgrades,
            // it's always SQL.
            $table_name = "field_data_{$field_name}";
            $revision_name = "field_revision_{$field_name}";
            $value_column = $field_name . '_tid';
            // Column names and values in field storage are the same for current and
            // revision.
            $columns = array(
                'entity_type',
                'entity_id',
                'revision_id',
                'bundle',
                'language',
                'delta',
                $value_column,
            );
            $values = array(
                'node',
                $record->nid,
                $record->vid,
                $record->type,
                LANGUAGE_NONE,
                $deltas[$field_name]++,
                $record->tid,
            );
            // Insert rows into the revision table.
            db_insert($revision_name)->fields($columns)
                ->values($values)
                ->execute();
            // is_current column is a node ID if this revision is also current.
            if ($record->is_current) {
                db_insert($table_name)->fields($columns)
                    ->values($values)
                    ->execute();
                // Only insert a record in the taxonomy index if the node is published.
                if ($record->status) {
                    // Update the {taxonomy_index} table.
                    db_insert('taxonomy_index')->fields(array(
                        'nid',
                        'tid',
                        'sticky',
                        'created',
                    ))
                        ->values(array(
                        $record->nid,
                        $record->tid,
                        $record->sticky,
                        $record->created,
                    ))
                        ->execute();
                }
            }
        }
        // Store the set of inserted values and the current revision's deltas in the
        // sandbox.
        $sandbox['cursor'] = array(
            'values' => $values,
            'deltas' => $deltas,
        );
        $sandbox['last'] += $batch;
    }
    if ($sandbox['count'] < $sandbox['total']) {
        $sandbox['#finished'] = FALSE;
    }
    else {
        db_drop_table('taxonomy_vocabulary_node_type');
        db_drop_table('taxonomy_term_node');
        // If there are no vocabs, we're done.
        db_drop_table('taxonomy_update_7005');
        $sandbox['#finished'] = TRUE;
        // Determine necessity of taxonomyextras field.
        $field = $field_info['taxonomyextra'];
        $revision_name = 'field_revision_' . $field['field_name'];
        $node_types = db_select($revision_name)->distinct()
            ->fields($revision_name, array(
            'bundle',
        ))
            ->execute()
            ->fetchCol();
        if (empty($node_types)) {
            // Delete the overflow field if there are no rows in the revision table.
            _update_7000_field_delete_field('taxonomyextra');
        }
        else {
            // Remove instances which are not actually used.
            $bundles = db_query('SELECT bundle FROM {field_config_instance} WHERE field_name = :field_name', array(
                ':field_name' => 'taxonomyextra',
            ))->fetchCol();
            $bundles = array_diff($bundles, $node_types);
            foreach ($bundles as $bundle) {
                _update_7000_field_delete_instance('taxonomyextra', 'node', $bundle);
            }
        }
    }
}

/**
 * Add {taxonomy_term_data}.format column.
 */
function taxonomy_update_7006() {
    db_add_field('taxonomy_term_data', 'format', array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => FALSE,
        'description' => 'The {filter_format}.format of the description.',
    ));
}

/**
 * Add index on {taxonomy_term_data}.name column to speed up taxonomy_get_term_by_name().
 */
function taxonomy_update_7007() {
    db_add_index('taxonomy_term_data', 'name', array(
        'name',
    ));
}

/**
 * Change the weight columns to normal int.
 */
function taxonomy_update_7008() {
    db_drop_index('taxonomy_term_data', 'taxonomy_tree');
    db_change_field('taxonomy_term_data', 'weight', 'weight', array(
        'type' => 'int',
        'not null' => TRUE,
        'default' => 0,
        'description' => 'The weight of this term in relation to other terms.',
    ), array(
        'indexes' => array(
            'taxonomy_tree' => array(
                'vid',
                'weight',
                'name',
            ),
        ),
    ));
    db_drop_index('taxonomy_vocabulary', 'list');
    db_change_field('taxonomy_vocabulary', 'weight', 'weight', array(
        'type' => 'int',
        'not null' => TRUE,
        'default' => 0,
        'description' => 'The weight of this vocabulary in relation to other vocabularies.',
    ), array(
        'indexes' => array(
            'list' => array(
                'weight',
                'name',
            ),
        ),
    ));
}

/**
 * Change {taxonomy_term_data}.format into varchar.
 */
function taxonomy_update_7009() {
    db_change_field('taxonomy_term_data', 'format', 'format', array(
        'type' => 'varchar',
        'length' => 255,
        'not null' => FALSE,
        'description' => 'The {filter_format}.format of the description.',
    ));
}

/**
 * Change {taxonomy_index}.created to support signed int.
*/
function taxonomy_update_7010() {
    db_change_field('taxonomy_index', 'created', 'created', array(
        'description' => 'The Unix timestamp when the node was created.',
        'type' => 'int',
        'unsigned' => FALSE,
        'not null' => TRUE,
        'default' => 0,
    ));
}

/**
 * @addtogroup updates-7.x-extra
 * @{
 */

/**
 * Drop unpublished nodes from the index.
 */
function taxonomy_update_7011(&$sandbox) {
    // Initialize information needed by the batch update system.
    if (!isset($sandbox['progress'])) {
        $sandbox['progress'] = 0;
        $sandbox['max'] = db_query('SELECT COUNT(DISTINCT n.nid) FROM {node} n INNER JOIN {taxonomy_index} t ON n.nid = t.nid WHERE n.status = :status', array(
            ':status' => NODE_NOT_PUBLISHED,
        ))->fetchField();
        // If there's no data, don't bother with the extra work.
        if (empty($sandbox['max'])) {
            return;
        }
    }
    // Process records in groups of 5000.
    $limit = 5000;
    $nids = db_query_range('SELECT DISTINCT n.nid FROM {node} n INNER JOIN {taxonomy_index} t ON n.nid = t.nid WHERE n.status = :status', 0, $limit, array(
        ':status' => NODE_NOT_PUBLISHED,
    ))->fetchCol();
    if (!empty($nids)) {
        db_delete('taxonomy_index')->condition('nid', $nids)
            ->execute();
    }
    // Update our progress information for the batch update.
    $sandbox['progress'] += $limit;
    // Indicate our current progress to the batch update system, if the update is
    // not yet complete.
    if ($sandbox['progress'] < $sandbox['max']) {
        $sandbox['#finished'] = $sandbox['progress'] / $sandbox['max'];
    }
}

/**
 * @} End of "addtogroup updates-7.x-extra".
 */