diff modules/forum/forum.install @ 0:ff03f76ab3fe

initial version

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/modules/forum/forum.install	Wed Aug 21 18:51:11 2013 +0100
@@ -0,0 +1,467 @@
+<?php
+
+/**
+ * @file
+ * Install, update, and uninstall functions for the Forum module.
+ */
+
+/**
+ * Implements hook_install().
+ */
+function forum_install() {
+  // Set the weight of the forum.module to 1 so it is loaded after the taxonomy.module.
+  db_update('system')
+    ->fields(array('weight' => 1))
+    ->condition('name', 'forum')
+    ->execute();
+  // Forum topics are published by default, but do not have any other default
+  // options set (for example, they are not promoted to the front page).
+  variable_set('node_options_forum', array('status'));
+}
+
+/**
+ * Implements hook_enable().
+ */
+function forum_enable() {
+  // If we enable forum at the same time as taxonomy we need to call
+  // field_associate_fields() as otherwise the field won't be enabled until
+  // hook modules_enabled is called which takes place after hook_enable events.
+  field_associate_fields('taxonomy');
+  // Create the forum vocabulary if it does not exist.
+  $vocabulary = taxonomy_vocabulary_load(variable_get('forum_nav_vocabulary', 0));
+  if (!$vocabulary) {
+    $edit = array(
+      'name' => t('Forums'),
+      'machine_name' => 'forums',
+      'description' => t('Forum navigation vocabulary'),
+      'hierarchy' => 1,
+      'module' => 'forum',
+      'weight' => -10,
+    );
+    $vocabulary = (object) $edit;
+    taxonomy_vocabulary_save($vocabulary);
+    variable_set('forum_nav_vocabulary', $vocabulary->vid);
+  }
+
+  // Create the 'taxonomy_forums' field if it doesn't already exist.
+  if (!field_info_field('taxonomy_forums')) {
+    $field = array(
+      'field_name' => 'taxonomy_forums',
+      'type' => 'taxonomy_term_reference',
+      'settings' => array(
+        'allowed_values' => array(
+          array(
+            'vocabulary' => $vocabulary->machine_name,
+            'parent' => 0,
+          ),
+        ),
+      ),
+    );
+    field_create_field($field);
+
+    // Create a default forum so forum posts can be created.
+    $edit = array(
+      'name' => t('General discussion'),
+      'description' => '',
+      'parent' => array(0),
+      'vid' => $vocabulary->vid,
+    );
+    $term = (object) $edit;
+    taxonomy_term_save($term);
+
+    // Create the instance on the bundle.
+    $instance = array(
+      'field_name' => 'taxonomy_forums',
+      'entity_type' => 'node',
+      'label' => $vocabulary->name,
+      'bundle' => 'forum',
+      'required' => TRUE,
+      'widget' => array(
+        'type' => 'options_select',
+      ),
+      'display' => array(
+        'default' => array(
+          'type' => 'taxonomy_term_reference_link',
+         'weight' => 10,
+        ),
+        'teaser' => array(
+          'type' => 'taxonomy_term_reference_link',
+         'weight' => 10,
+        ),
+      ),
+    );
+    field_create_instance($instance);
+  }
+
+  // Ensure the forum node type is available.
+  node_types_rebuild();
+  $types = node_type_get_types();
+  node_add_body_field($types['forum']);
+}
+
+/**
+ * Implements hook_uninstall().
+ */
+function forum_uninstall() {
+  // Load the dependent Taxonomy module, in case it has been disabled.
+  drupal_load('module', 'taxonomy');
+
+  variable_del('forum_containers');
+  variable_del('forum_hot_topic');
+  variable_del('forum_per_page');
+  variable_del('forum_order');
+  variable_del('forum_block_num_active');
+  variable_del('forum_block_num_new');
+  variable_del('node_options_forum');
+
+  field_delete_field('taxonomy_forums');
+  // Purge field data now to allow taxonomy module to be uninstalled
+  // if this is the only field remaining.
+  field_purge_batch(10);
+}
+
+/**
+ * Implements hook_schema().
+ */
+function forum_schema() {
+  $schema['forum'] = array(
+    'description' => 'Stores the relationship of nodes to forum terms.',
+    'fields' => array(
+      'nid' => array(
+        'type' => 'int',
+        'unsigned' => TRUE,
+        'not null' => TRUE,
+        'default' => 0,
+        'description' => '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' => 'The {taxonomy_term_data}.tid of the forum term assigned to the node.',
+      ),
+    ),
+    'indexes' => array(
+      'forum_topic' => array('nid', 'tid'),
+      'tid' => array('tid'),
+    ),
+    'primary key' => array('vid'),
+    'foreign keys' => array(
+      'forum_node' => array(
+        'table' => 'node',
+        'columns' => array(
+          'nid' => 'nid',
+          'vid' => 'vid',
+        ),
+      ),
+    ),
+  );
+
+  $schema['forum_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,
+      ),
+      'title' => array(
+        'description' => 'The title of this node, always treated as non-markup plain text.',
+        'type' => 'varchar',
+        'length' => 255,
+        'not null' => TRUE,
+        'default' => '',
+      ),
+      '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,
+      ),
+      'last_comment_timestamp' => array(
+        'type' => 'int',
+        'not null' => TRUE,
+        'default' => 0,
+        'description' => 'The Unix timestamp of the last comment that was posted within this node, from {comment}.timestamp.',
+      ),
+      'comment_count' => array(
+        'type' => 'int',
+        'unsigned' => TRUE,
+        'not null' => TRUE,
+        'default' => 0,
+        'description' => 'The total number of comments on this node.',
+      ),
+    ),
+    'indexes' => array(
+      'forum_topics' => array('nid', 'tid', 'sticky', 'last_comment_timestamp'),
+      'created' => array('created'),
+      'last_comment_timestamp' => array('last_comment_timestamp'),
+    ),
+    '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_update_dependencies().
+ */
+function forum_update_dependencies() {
+  $dependencies['forum'][7003] = array(
+    // Forum update 7003 uses field API update functions, so must run after
+    // Field API has been enabled.
+    'system' => 7020,
+    // Forum update 7003 relies on updated taxonomy module schema. Ensure it
+    // runs after all taxonomy updates.
+    'taxonomy' => 7010,
+  );
+  return $dependencies;
+}
+
+/**
+ * Add new index to forum table.
+ */
+function forum_update_7000() {
+  db_drop_index('forum', 'nid');
+  db_add_index('forum', 'forum_topic', array('nid', 'tid'));
+}
+
+/**
+ * Create new {forum_index} table.
+ */
+function forum_update_7001() {
+  $forum_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,
+      ),
+      'title' => array(
+        'description' => 'The title of this node, always treated as non-markup plain text.',
+        'type' => 'varchar',
+        'length' => 255,
+        'not null' => TRUE,
+        'default' => '',
+      ),
+      '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,
+      ),
+      'last_comment_timestamp' => array(
+        'type' => 'int',
+        'not null' => TRUE,
+        'default' => 0,
+        'description' => 'The Unix timestamp of the last comment that was posted within this node, from {comment}.timestamp.',
+      ),
+      'comment_count' => array(
+        'type' => 'int',
+        'unsigned' => TRUE,
+        'not null' => TRUE,
+        'default' => 0,
+        'description' => 'The total number of comments on this node.',
+      ),
+    ),
+    'indexes' => array(
+      'forum_topics' => array('tid', 'sticky', 'last_comment_timestamp'),
+    ),
+    '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('forum_index', $forum_index);
+
+  $select = db_select('node', 'n');
+  $forum_alias = $select->join('forum', 'f', 'n.vid = f.vid');
+  $ncs_alias = $select->join('node_comment_statistics', 'ncs', 'n.nid = ncs.nid');
+  $select
+    ->fields('n', array('nid', 'title', 'sticky', 'created'))
+    ->fields($forum_alias, array('tid'))
+    ->fields($ncs_alias, array('last_comment_timestamp', 'comment_count'));
+
+  db_insert('forum_index')
+    ->fields(array('nid', 'title', 'sticky', 'created', 'tid', 'last_comment_timestamp', 'comment_count'))
+    ->from($select)
+    ->execute();
+}
+
+/**
+ * @addtogroup updates-7.x-extra
+ * @{
+ */
+
+/**
+ * Add new index to forum_index table.
+ */
+function forum_update_7002() {
+  db_drop_index('forum_index', 'forum_topics');
+  db_add_index('forum_index', 'forum_topics', array('nid', 'tid', 'sticky', 'last_comment_timestamp'));
+}
+
+/**
+ * Rename field to 'taxonomy_forums'.
+ */
+function forum_update_7003() {
+  $messages = array();
+
+  $new_field_name = 'taxonomy_forums';
+
+  // Test to see if the taxonomy_forums field exists.
+  $fields = _update_7000_field_read_fields(array('field_name' => $new_field_name));
+  if ($fields) {
+    // Since the field exists, we're done.
+    return;
+  }
+
+  // Calculate the old field name.
+  $vid = variable_get('forum_nav_vocabulary', 0);
+  $vocabulary_machine_name = db_select('taxonomy_vocabulary', 'tv')
+    ->fields('tv', array('machine_name'))
+    ->condition('vid', $vid)
+    ->execute()
+    ->fetchField();
+  $old_field_name = 'taxonomy_' . $vocabulary_machine_name;
+
+  // Read the old fields.
+  $old_fields = _update_7000_field_read_fields(array('field_name' => $old_field_name));
+  foreach ($old_fields as $old_field) {
+    if ($old_field['storage']['type'] != 'field_sql_storage') {
+      $messages[] = t('Cannot rename field %id (%old_field_name) to %new_field_name because it does not use the field_sql_storage storage type.', array(
+        '%id' => $old_field['id'],
+        '%old_field_name' => $old_field_name,
+        '%new_field_name' => $new_field_name,
+      ));
+      continue;
+    }
+
+    // Update {field_config}.
+    db_update('field_config')
+      ->fields(array('field_name' => $new_field_name))
+      ->condition('id', $old_field['id'])
+      ->execute();
+
+    // Update {field_config_instance}.
+    db_update('field_config_instance')
+      ->fields(array('field_name' => $new_field_name))
+      ->condition('field_id', $old_field['id'])
+      ->execute();
+
+    // The tables that need updating in the form 'old_name' => 'new_name'.
+    $tables = array(
+      'field_data_' . $old_field_name => 'field_data_' . $new_field_name,
+      'field_revision_' . $old_field_name => 'field_revision_' . $new_field_name,
+    );
+    foreach ($tables as $old_table => $new_table) {
+      $old_column_name = $old_field_name . '_tid';
+      $new_column_name = $new_field_name . '_tid';
+
+      // Rename the column.
+      db_drop_index($old_table, $old_column_name);
+      db_change_field($old_table, $old_column_name, $new_column_name, array(
+        'type' => 'int',
+        'unsigned' => TRUE,
+        'not null' => FALSE,
+      ));
+      db_drop_index($old_table, $new_column_name);
+      db_add_index($old_table, $new_column_name, array($new_column_name));
+
+      // Rename the table.
+      db_rename_table($old_table, $new_table);
+    }
+  }
+
+  cache_clear_all('*', 'cache_field', TRUE);
+
+  return $messages;
+}
+
+/**
+ * Update {forum_index} so that only published nodes are indexed.
+ */
+function forum_update_7011() {
+  $select = db_select('node', 'n')
+    ->fields('n', array('nid'))
+    ->condition('status', 0 );
+
+  db_delete('forum_index')
+    ->condition('nid', $select, 'IN')
+    ->execute();
+}
+
+/**
+ * Add 'created' and 'last_comment_timestamp' indexes.
+ */
+function forum_update_7012() {
+  db_add_index('forum_index', 'created', array('created'));
+  db_add_index('forum_index', 'last_comment_timestamp', array('last_comment_timestamp'));
+}
+
+/**
+ * @} End of "addtogroup updates-7.x-extra".
+ */