button_field.install in Button Field 6

Notify CCK when this module is enabled, disabled, installed, and uninstalled so CCK can do any necessary preparation or cleanup.

File

button_field.install

<?php

/**
 * @file
 * Notify CCK when this module is enabled, disabled, installed, and uninstalled
 * so CCK can do any necessary preparation or cleanup.
 */

/**
 * Implementation of hook_install().
 */
function button_field_install() {
  drupal_load('module', 'content');
  content_notify('install', 'button_field');
}

// end function button_field_install()

/**
 * Implementation of hook_uninstall().
 */
function button_field_uninstall() {
  drupal_load('module', 'content');
  content_notify('uninstall', 'button_field');
}

// end function button_field_uninstall()

/**
 * Implementation of hook_enable().
 * 
 * Notify content module when this module is enabled.
 */
function button_field_enable() {
  drupal_load('module', 'content');
  content_notify('enable', 'button_field');
}

// end function button_field_enable()

/**
 * Implementation of hook_disable().
 * 
 * Notify content module when this module is disabled.
 */
function button_field_disable() {
  drupal_load('module', 'content');
  content_notify('disable', 'button_field');
}

// end function button_field_disable()

/**
 * Implementation of hook_update_N().
 * 
 * CCK Fields won't appear for views unless they have a database column
 * associated with them.
 */
function button_field_update_6100() {
  $ret = array();
  $columns['value'] = array(
    'type' => 'varchar',
    'length' => '255',
    'not null' => TRUE,
    'sortable' => FALSE,
    'views' => TRUE,
  );
  $ret[] = update_sql('UPDATE {content_node_field} SET db_columns = ' . '\'' . serialize($columns) . '\' WHERE type = \'button_field\'');
  return $ret;
}

// end function button_field_update_6100()

/**
 * Implementation of hook_update_N().
 * 
 * Need to create the columns associated with the last update
 * 
 * @see button_field_update_6100()
 */
function button_field_update_6101() {
  $spec = array(
    'type' => 'int',
    'size' => 'tiny',
    'not null' => FALSE,
    'sortable' => FALSE,
    'views' => TRUE,
  );

  // end $spec
  // start by getting all of the button fields
  $ret = array();
  $field_result = db_query('SELECT field_name FROM {content_node_field} ' . 'WHERE type = \'%s\'', 'button_field');

  // iterate over each of the fields
  $field = db_fetch_array($field_result);
  while ($field !== FALSE) {

    // get the instances for this field
    $instance_result = db_query('SELECT type_name FROM {content_node_field_instance} ' . 'WHERE field_name = \'%s\'', $field['field_name']);

    // iterate over each of the instances, create the appropriate column
    $column = $field['field_name'] . '_value';
    $instance = db_fetch_array($instance_result);
    while ($instance !== FALSE) {

      // check to see if the column already exists
      $table = 'content_type_' . $instance['type_name'];
      if (db_column_exists($table, $column)) {

        // we want to drop the column because we're changing its type
        db_drop_field($ret, $table, $column);
      }

      // end if the columnd already exist
      db_add_field($ret, $table, $column, $spec);
      $instance = db_fetch_array($instance_result);
    }

    // end for each instance of the field
    $field = db_fetch_array($field_result);
  }

  // end for each field
  return $ret;
}

// end function button_field_update_6101()

Functions

Name	Description
button_field_disable	Implementation of hook_disable().
button_field_enable	Implementation of hook_enable().
button_field_install	Implementation of hook_install().
button_field_uninstall	Implementation of hook_uninstall().
button_field_update_6100	Implementation of hook_update_N().
button_field_update_6101	Implementation of hook_update_N().