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<?php
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/**
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* @file
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* Install, update and uninstall functions for the comment module.
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*/
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/**
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* Implements hook_uninstall().
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*/
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function comment_uninstall() {
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// Remove variables.
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variable_del('comment_block_count');
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$node_types = array_keys(node_type_get_types());
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foreach ($node_types as $node_type) {
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field_attach_delete_bundle('comment', 'comment_node_' . $node_type);
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variable_del('comment_' . $node_type);
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variable_del('comment_anonymous_' . $node_type);
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variable_del('comment_controls_' . $node_type);
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variable_del('comment_default_mode_' . $node_type);
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variable_del('comment_default_order_' . $node_type);
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variable_del('comment_default_per_page_' . $node_type);
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variable_del('comment_form_location_' . $node_type);
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variable_del('comment_preview_' . $node_type);
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variable_del('comment_subject_field_' . $node_type);
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}
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}
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/**
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* Implements hook_enable().
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*/
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function comment_enable() {
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// Insert records into the node_comment_statistics for nodes that are missing.
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$query = db_select('node', 'n');
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$query->leftJoin('node_comment_statistics', 'ncs', 'ncs.nid = n.nid');
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$query->addField('n', 'created', 'last_comment_timestamp');
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$query->addField('n', 'uid', 'last_comment_uid');
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$query->addField('n', 'nid');
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$query->addExpression('0', 'comment_count');
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$query->addExpression('NULL', 'last_comment_name');
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$query->isNull('ncs.comment_count');
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db_insert('node_comment_statistics')
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->from($query)
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->execute();
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}
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/**
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* Implements hook_modules_enabled().
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*
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* Creates comment body fields for node types existing before the comment module
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* is enabled. We use hook_modules_enabled() rather than hook_enable() so we can
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* react to node types of existing modules, and those of modules being enabled
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* both before and after comment module in the loop of module_enable().
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*
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* There is a separate comment bundle for each node type to allow for
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* per-node-type customization of comment fields. Each one of these bundles
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* needs a comment body field instance. A comment bundle is needed even for
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* node types whose comments are disabled by default, because individual nodes
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* may override that default.
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*
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* @see comment_node_type_insert()
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*/
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function comment_modules_enabled($modules) {
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// Only react if comment module is one of the modules being enabled.
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// hook_node_type_insert() is used to create body fields while the comment
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// module is enabled.
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if (in_array('comment', $modules)) {
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// Ensure that the list of node types reflects newly enabled modules.
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node_types_rebuild();
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// Create comment body fields for each node type, if needed.
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foreach (node_type_get_types() as $type => $info) {
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_comment_body_field_create($info);
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}
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}
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}
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/**
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* Implements hook_update_dependencies().
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*/
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function comment_update_dependencies() {
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// comment_update_7005() creates the comment body field and therefore must
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// run after all Field modules have been enabled, which happens in
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// system_update_7027().
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$dependencies['comment'][7005] = array(
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'system' => 7027,
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);
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// comment_update_7006() needs to query the {filter_format} table to get a
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// list of existing text formats, so it must run after filter_update_7000(),
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// which creates that table.
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$dependencies['comment'][7006] = array(
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'filter' => 7000,
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);
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return $dependencies;
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}
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/**
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* @addtogroup updates-6.x-to-7.x
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* @{
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*/
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/**
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* Rename comment display setting variables.
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*/
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function comment_update_7000() {
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$types = _update_7000_node_get_types();
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foreach ($types as $type => $type_object) {
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variable_del('comment_default_order' . $type);
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// Drupal 6 had four display modes:
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// - COMMENT_MODE_FLAT_COLLAPSED = 1
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// - COMMENT_MODE_FLAT_EXPANDED = 2
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// - COMMENT_MODE_THREADED_COLLAPSED = 3
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// - COMMENT_MODE_THREADED_EXPANDED = 4
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//
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// Drupal 7 doesn't support collapsed/expanded modes anymore, so we
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// migrate all the flat modes to COMMENT_MODE_FLAT (0) and all the threaded
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// modes to COMMENT_MODE_THREADED (1).
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$setting = variable_get('comment_default_mode_' . $type, 4);
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if ($setting == 3 || $setting == 4) {
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variable_set('comment_default_mode_' . $type, 1);
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}
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else {
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variable_set('comment_default_mode_' . $type, 0);
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}
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// There were only two comment modes in the past:
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// - 1 was 'required' previously, convert into DRUPAL_REQUIRED (2).
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// - 0 was 'optional' previously, convert into DRUPAL_OPTIONAL (1).
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$preview = variable_get('comment_preview_' . $type, 1) ? 2 : 1;
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variable_set('comment_preview_' . $type, $preview);
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}
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}
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/**
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* Change comment status from published being 0 to being 1
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*/
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function comment_update_7001() {
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// Choose a temporary status value different from the existing status values.
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$tmp_status = db_query('SELECT MAX(status) FROM {comments}')->fetchField() + 1;
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$changes = array(
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0 => $tmp_status,
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1 => 0,
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$tmp_status => 1,
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);
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foreach ($changes as $old => $new) {
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db_update('comments')
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->fields(array('status' => $new))
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->condition('status', $old)
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->execute();
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}
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}
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/**
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* Rename {comments} table to {comment} and upgrade it.
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*/
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function comment_update_7002() {
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db_rename_table('comments', 'comment');
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// Add user-related indexes. These may already exist from Drupal 6.
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if (!db_index_exists('comment', 'comment_uid')) {
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db_add_index('comment', 'comment_uid', array('uid'));
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db_add_index('node_comment_statistics', 'last_comment_uid', array('last_comment_uid'));
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}
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// Create a language column.
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db_add_field('comment', 'language', array(
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'type' => 'varchar',
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'length' => 12,
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'not null' => TRUE,
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'default' => '',
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));
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db_add_index('comment', 'comment_nid_language', array('nid', 'language'));
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}
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/**
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* Split {comment}.timestamp into 'created' and 'changed', improve indexing on {comment}.
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*/
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function comment_update_7003() {
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// Drop the old indexes.
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db_drop_index('comment', 'status');
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db_drop_index('comment', 'pid');
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// Create a created column.
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db_add_field('comment', 'created', array(
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'type' => 'int',
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'not null' => TRUE,
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'default' => 0,
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));
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// Rename the timestamp column to changed.
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db_change_field('comment', 'timestamp', 'changed', array(
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'type' => 'int',
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'not null' => TRUE,
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'default' => 0,
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));
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// Migrate the data.
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// @todo db_update() should support this.
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db_query('UPDATE {comment} SET created = changed');
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// Recreate the indexes.
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// The 'comment_num_new' index is optimized for comment_num_new()
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// and comment_new_page_count().
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db_add_index('comment', 'comment_num_new', array('nid', 'status', 'created', 'cid', 'thread'));
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db_add_index('comment', 'comment_pid_status', array('pid', 'status'));
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}
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/**
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* Upgrade the {node_comment_statistics} table.
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*/
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function comment_update_7004() {
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db_add_field('node_comment_statistics', 'cid', array(
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'type' => 'int',
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'not null' => TRUE,
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'default' => 0,
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'description' => 'The {comment}.cid of the last comment.',
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));
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db_add_index('node_comment_statistics', 'cid', array('cid'));
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// The comment_count index may have been added in Drupal 6.
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if (!db_index_exists('node_comment_statistics', 'comment_count')) {
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// Add an index on the comment_count.
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db_add_index('node_comment_statistics', 'comment_count', array('comment_count'));
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}
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}
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/**
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* Create the comment_body field.
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*/
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function comment_update_7005() {
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// Create comment body field.
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$field = array(
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'field_name' => 'comment_body',
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'type' => 'text_long',
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'module' => 'text',
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'entity_types' => array(
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'comment',
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),
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'settings' => array(),
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'cardinality' => 1,
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);
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_update_7000_field_create_field($field);
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// Add the field to comments for all existing bundles.
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$generic_instance = array(
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'entity_type' => 'comment',
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'label' => t('Comment'),
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'settings' => array(
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'text_processing' => 1,
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),
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'required' => TRUE,
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'display' => array(
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'default' => array(
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'label' => 'hidden',
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'type' => 'text_default',
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'weight' => 0,
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'settings' => array(),
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'module' => 'text',
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),
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),
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'widget' => array(
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'type' => 'text_textarea',
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'settings' => array(
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'rows' => 5,
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),
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'weight' => 0,
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'module' => 'text',
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),
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'description' => '',
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);
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$types = _update_7000_node_get_types();
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foreach ($types as $type => $type_object) {
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$instance = $generic_instance;
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$instance['bundle'] = 'comment_node_' . $type;
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_update_7000_field_create_instance($field, $instance);
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}
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}
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/**
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* Migrate data from the comment field to field storage.
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*/
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function comment_update_7006(&$sandbox) {
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// This is a multipass update. First set up some comment variables.
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if (empty($sandbox['total'])) {
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$comments = (bool) db_query_range('SELECT 1 FROM {comment}', 0, 1)->fetchField();
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$sandbox['types'] = array();
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if ($comments) {
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$sandbox['types'] = array_keys(_update_7000_node_get_types());
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}
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$sandbox['total'] = count($sandbox['types']);
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}
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if (!empty($sandbox['types'])) {
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$type = array_shift($sandbox['types']);
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$query = db_select('comment', 'c');
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$query->innerJoin('node', 'n', 'c.nid = n.nid AND n.type = :type', array(':type' => $type));
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$query->addField('c', 'cid', 'entity_id');
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$query->addExpression("'comment_node_$type'", 'bundle');
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$query->addExpression("'comment'", 'entity_type');
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$query->addExpression('0', 'deleted');
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$query->addExpression("'" . LANGUAGE_NONE . "'", 'language');
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$query->addExpression('0', 'delta');
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$query->addField('c', 'comment', 'comment_body_value');
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$query->addField('c', 'format', 'comment_body_format');
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db_insert('field_data_comment_body')
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->from($query)
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->execute();
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$sandbox['#finished'] = 1 - count($sandbox['types']) / $sandbox['total'];
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}
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320
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// On the last pass of the update, $sandbox['types'] will be empty.
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if (empty($sandbox['types'])) {
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// Update the comment body text formats. For an explanation of these
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324
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// updates, see the code comments in user_update_7010().
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db_update('field_data_comment_body')
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->fields(array('comment_body_format' => NULL))
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->condition('comment_body_value', '')
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->condition('comment_body_format', 0)
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->execute();
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$existing_formats = db_query("SELECT format FROM {filter_format}")->fetchCol();
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$default_format = variable_get('filter_default_format', 1);
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db_update('field_data_comment_body')
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->fields(array('comment_body_format' => $default_format))
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->isNotNull('comment_body_format')
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->condition('comment_body_format', $existing_formats, 'NOT IN')
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->execute();
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337
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338
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// Finally, remove the old comment data.
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db_drop_field('comment', 'comment');
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db_drop_field('comment', 'format');
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341
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}
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342
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}
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343
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|
344
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/**
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345
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* @} End of "addtogroup updates-6.x-to-7.x".
|
346
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*/
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347
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|
348
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/**
|
349
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* @addtogroup updates-7.x-extra
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350
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* @{
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351
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*/
|
352
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|
353
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/**
|
354
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* Add an index to the created column.
|
355
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*/
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356
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function comment_update_7007() {
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357
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db_add_index('comment', 'comment_created', array('created'));
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358
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}
|
359
|
|
360
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/**
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361
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* Update database to match Drupal 7 schema.
|
362
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*/
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363
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function comment_update_7008() {
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364
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// Update default status to 1.
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365
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db_change_field('comment', 'status', 'status', array(
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366
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'type' => 'int',
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367
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'unsigned' => TRUE,
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368
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'not null' => TRUE,
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369
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'default' => 1,
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370
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'size' => 'tiny',
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371
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));
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372
|
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373
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// Realign indexes.
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374
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db_drop_index('comment', 'comment_status_pid');
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db_add_index('comment', 'comment_status_pid', array('pid', 'status'));
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376
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db_drop_index('comment', 'comment_pid_status');
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377
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db_drop_index('comment', 'nid');
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378
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}
|
379
|
|
380
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/**
|
381
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* Change the last_comment_timestamp column description.
|
382
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*/
|
383
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function comment_update_7009() {
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384
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db_change_field('node_comment_statistics', 'last_comment_timestamp', 'last_comment_timestamp', array(
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385
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'type' => 'int',
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386
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'not null' => TRUE,
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387
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'default' => 0,
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388
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'description' => 'The Unix timestamp of the last comment that was posted within this node, from {comment}.changed.',
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389
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));
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390
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}
|
391
|
|
392
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/**
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393
|
* @} End of "addtogroup updates-7.x-extra".
|
394
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*/
|
395
|
|
396
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/**
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397
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* Implements hook_schema().
|
398
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*/
|
399
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function comment_schema() {
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400
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$schema['comment'] = array(
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401
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'description' => 'Stores comments and associated data.',
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402
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'fields' => array(
|
403
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'cid' => array(
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404
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'type' => 'serial',
|
405
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'not null' => TRUE,
|
406
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'description' => 'Primary Key: Unique comment ID.',
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407
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),
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408
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'pid' => array(
|
409
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'type' => 'int',
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410
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'not null' => TRUE,
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411
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'default' => 0,
|
412
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'description' => 'The {comment}.cid to which this comment is a reply. If set to 0, this comment is not a reply to an existing comment.',
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413
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),
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414
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'nid' => array(
|
415
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'type' => 'int',
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416
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'not null' => TRUE,
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417
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'default' => 0,
|
418
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'description' => 'The {node}.nid to which this comment is a reply.',
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),
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420
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'uid' => array(
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'type' => 'int',
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422
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'not null' => TRUE,
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423
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'default' => 0,
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424
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'description' => 'The {users}.uid who authored the comment. If set to 0, this comment was created by an anonymous user.',
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425
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),
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426
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'subject' => array(
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427
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'type' => 'varchar',
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428
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'length' => 64,
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429
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'not null' => TRUE,
|
430
|
'default' => '',
|
431
|
'description' => 'The comment title.',
|
432
|
),
|
433
|
'hostname' => array(
|
434
|
'type' => 'varchar',
|
435
|
'length' => 128,
|
436
|
'not null' => TRUE,
|
437
|
'default' => '',
|
438
|
'description' => "The author's host name.",
|
439
|
),
|
440
|
'created' => array(
|
441
|
'type' => 'int',
|
442
|
'not null' => TRUE,
|
443
|
'default' => 0,
|
444
|
'description' => 'The time that the comment was created, as a Unix timestamp.',
|
445
|
),
|
446
|
'changed' => array(
|
447
|
'type' => 'int',
|
448
|
'not null' => TRUE,
|
449
|
'default' => 0,
|
450
|
'description' => 'The time that the comment was last edited, as a Unix timestamp.',
|
451
|
),
|
452
|
'status' => array(
|
453
|
'type' => 'int',
|
454
|
'unsigned' => TRUE,
|
455
|
'not null' => TRUE,
|
456
|
'default' => 1,
|
457
|
'size' => 'tiny',
|
458
|
'description' => 'The published status of a comment. (0 = Not Published, 1 = Published)',
|
459
|
),
|
460
|
'thread' => array(
|
461
|
'type' => 'varchar',
|
462
|
'length' => 255,
|
463
|
'not null' => TRUE,
|
464
|
'description' => "The vancode representation of the comment's place in a thread.",
|
465
|
),
|
466
|
'name' => array(
|
467
|
'type' => 'varchar',
|
468
|
'length' => 60,
|
469
|
'not null' => FALSE,
|
470
|
'description' => "The comment author's name. Uses {users}.name if the user is logged in, otherwise uses the value typed into the comment form.",
|
471
|
),
|
472
|
'mail' => array(
|
473
|
'type' => 'varchar',
|
474
|
'length' => 64,
|
475
|
'not null' => FALSE,
|
476
|
'description' => "The comment author's e-mail address from the comment form, if user is anonymous, and the 'Anonymous users may/must leave their contact information' setting is turned on.",
|
477
|
),
|
478
|
'homepage' => array(
|
479
|
'type' => 'varchar',
|
480
|
'length' => 255,
|
481
|
'not null' => FALSE,
|
482
|
'description' => "The comment author's home page address from the comment form, if user is anonymous, and the 'Anonymous users may/must leave their contact information' setting is turned on.",
|
483
|
),
|
484
|
'language' => array(
|
485
|
'description' => 'The {languages}.language of this comment.',
|
486
|
'type' => 'varchar',
|
487
|
'length' => 12,
|
488
|
'not null' => TRUE,
|
489
|
'default' => '',
|
490
|
),
|
491
|
),
|
492
|
'indexes' => array(
|
493
|
'comment_status_pid' => array('pid', 'status'),
|
494
|
'comment_num_new' => array('nid', 'status', 'created', 'cid', 'thread'),
|
495
|
'comment_uid' => array('uid'),
|
496
|
'comment_nid_language' => array('nid', 'language'),
|
497
|
'comment_created' => array('created'),
|
498
|
),
|
499
|
'primary key' => array('cid'),
|
500
|
'foreign keys' => array(
|
501
|
'comment_node' => array(
|
502
|
'table' => 'node',
|
503
|
'columns' => array('nid' => 'nid'),
|
504
|
),
|
505
|
'comment_author' => array(
|
506
|
'table' => 'users',
|
507
|
'columns' => array('uid' => 'uid'),
|
508
|
),
|
509
|
),
|
510
|
);
|
511
|
|
512
|
$schema['node_comment_statistics'] = array(
|
513
|
'description' => 'Maintains statistics of node and comments posts to show "new" and "updated" flags.',
|
514
|
'fields' => array(
|
515
|
'nid' => array(
|
516
|
'type' => 'int',
|
517
|
'unsigned' => TRUE,
|
518
|
'not null' => TRUE,
|
519
|
'default' => 0,
|
520
|
'description' => 'The {node}.nid for which the statistics are compiled.',
|
521
|
),
|
522
|
'cid' => array(
|
523
|
'type' => 'int',
|
524
|
'not null' => TRUE,
|
525
|
'default' => 0,
|
526
|
'description' => 'The {comment}.cid of the last comment.',
|
527
|
),
|
528
|
'last_comment_timestamp' => array(
|
529
|
'type' => 'int',
|
530
|
'not null' => TRUE,
|
531
|
'default' => 0,
|
532
|
'description' => 'The Unix timestamp of the last comment that was posted within this node, from {comment}.changed.',
|
533
|
),
|
534
|
'last_comment_name' => array(
|
535
|
'type' => 'varchar',
|
536
|
'length' => 60,
|
537
|
'not null' => FALSE,
|
538
|
'description' => 'The name of the latest author to post a comment on this node, from {comment}.name.',
|
539
|
),
|
540
|
'last_comment_uid' => array(
|
541
|
'type' => 'int',
|
542
|
'not null' => TRUE,
|
543
|
'default' => 0,
|
544
|
'description' => 'The user ID of the latest author to post a comment on this node, from {comment}.uid.',
|
545
|
),
|
546
|
'comment_count' => array(
|
547
|
'type' => 'int',
|
548
|
'unsigned' => TRUE,
|
549
|
'not null' => TRUE,
|
550
|
'default' => 0,
|
551
|
'description' => 'The total number of comments on this node.',
|
552
|
),
|
553
|
),
|
554
|
'primary key' => array('nid'),
|
555
|
'indexes' => array(
|
556
|
'node_comment_timestamp' => array('last_comment_timestamp'),
|
557
|
'comment_count' => array('comment_count'),
|
558
|
'last_comment_uid' => array('last_comment_uid'),
|
559
|
),
|
560
|
'foreign keys' => array(
|
561
|
'statistics_node' => array(
|
562
|
'table' => 'node',
|
563
|
'columns' => array('nid' => 'nid'),
|
564
|
),
|
565
|
'last_comment_author' => array(
|
566
|
'table' => 'users',
|
567
|
'columns' => array(
|
568
|
'last_comment_uid' => 'uid',
|
569
|
),
|
570
|
),
|
571
|
),
|
572
|
);
|
573
|
|
574
|
return $schema;
|
575
|
}
|