Club Drupal

<?php

/**

 * @file

 *  admin blocks of the ddblock module.

 *

 */

/**

 * Form with overview of all dynamic display blocks to manage and to add dynamic display blocks.

 */

function ddblock_block_add_form($form, &$form_state) {

  // get dynamic display  block.

  $rows = array();

  $blocks = ddblock_get_blocks(NULL);

  foreach ($blocks as $block) {

    $rows[] = array(

      'name' => check_plain($block->title),

      'edit' => l(t('Edit'), "admin/structure/ddblock/edit/$block->delta"),

      'delete' => l(t('Delete'), "admin/structure/ddblock/delete/$block->delta"),

      'block' => l(t('Configure block'), "admin/structure/block/manage/ddblock/$block->delta/configure"),

    );

  }

  if (empty($rows)) {

    $rows[] = array(array(

        'data' => t('No dynamic display blocks available.'),

        'colspan' => '4',

      ));

  }

  $header = array(t('Name'), array(

      'data' => t('Operation'),

      'colspan' => '3',

    ));

  $output = theme('table', array('header' => $header, 'rows' => $rows, 'attributes' => array('id' => 'dynamic display block')));

  $form = array();

  $form['list'] = array(

    '#type' => 'fieldset',

    '#title' => t('Dynamic display blocks'),

    '#collapsible' => TRUE,

  );

  $form['list']['table'] = array(

    '#type' => 'item',

    '#prefix' => '<div>',

    '#markup' => $output,

    '#suffix' => '</div>',

  );

  // add dynamic display  block.

  $form['block'] = array(

    '#type' => 'fieldset',

    '#title' => t('Add dynamic display block.'),

  );

  $form['block']['title'] = array(

    '#type' => 'textfield',

    '#title' => t('Block title'),

    '#description' => t('A block with this same name will be created.'),

    '#default_value' => '',

    '#required' => TRUE,

  );

  $form['block']['op'] = array(

    '#type' => 'submit',

    '#value' => t('Add block'),

  );

  return $form;

}

/**

 * Validate "Add Block" form.

 */

function ddblock_block_add_form_validate($form, &$form_state) {

  $blocks = ddblock_get_blocks(NULL);

  $block_titles = array();

  foreach ($blocks as $block) {

    $block_titles[] = $block->title;

  }

  if (!empty($block_titles)) {

    // Check if name is unique

    if (in_array($form_state['values']['title'], $block_titles)) {

      form_set_error('', t('Dynamic display block %s already exists. Please use a different name.', array('%s' => $form_state['values']['title'])));

    }

  }

}

/**

 * Add dynamic display block to database from "Add Block" form.

 */

function ddblock_block_add_form_submit($form, &$form_state) {

  $id = db_insert('ddblock_block')

  ->fields(array(

    'title' => $form_state['values']['title'],

    'module' => 'ddblock',

  ))

  ->execute();

  drupal_set_message(t('Dynamic display block %s added.', array('%s' => $form_state['values']['title'])));

}

/**

 * Edit block form.

 */

function ddblock_block_edit_form($form, &$form_state, $delta) {

  $block = ddblock_get_blocks($delta);

  $form = array();

  $form['delta'] = array(

    '#type' => 'hidden',

    '#value' => $delta,

  );

  $form['title'] = array(

    '#type' => 'textfield',

    '#title' => t('Block title'),

    '#description' => t('The block name must be unique.'),

    '#default_value' => $block->title,

    '#required' => TRUE,

  );

  $form['op'] = array(

    '#type' => 'submit',

    '#value' => t('Save'),

  );

  return $form;

}

/**

 * Validate edit block form.

 */

function ddblock_block_edit_form_validate($form, &$form_state) {

  $blocks = ddblock_get_blocks(NULL);

  $block_titles = array();

  foreach ($blocks as $block) {

    $block_titles[$block->delta] = $block->title;

  }

  // Remove current blockname to prevent false error.

  unset($block_titles[$form_state['values']['delta']]);

  if (!empty($block_titles)) {

    // Check if name is unique.

    if (in_array($form_state['values']['title'], $block_titles)) {

      form_set_error('', t('Dynamic display block %s already exists. Please use a different name.', array('%s' => $form_state['values']['title'])));

    }

  }

}

/**

 * Submit edit block form.

 */

function ddblock_block_edit_form_submit($form, &$form_state) {

  db_update('ddblock_block')

  ->fields(array(

    'title' => $form_state['values']['title'],

  ))

  ->condition('delta', $form_state['values']['delta'])

  ->execute();

  drupal_set_message(t('Dynamic display block block updated.'));

  $form_state['redirect'] = 'admin/structure/ddblock';

  return $form;

}

/**

 * Delete block form.

 */

function ddblock_block_confirm_delete_form($form, &$form_state, $delta) {

  $block = ddblock_get_blocks($delta);

  if (empty($block)) {

    drupal_set_message(t('The block with delta @delta was not found.', array('@delta' => $delta)), 'error');

    return array();

  }

  else {

    if ($block->enabled == 1) {

      //The question to ask the user.

      $question = t('Are you sure you want to delete the dynamic display block instance %title?', array('%title' => $block->title));

    }

    else {

      //The question to ask the user.

      $question = t('Are you sure you want to delete the dynamic display block %title?', array('%title' => $block->title));

    }

    // The page to go to if the user denies the action.

    $path = 'admin/structure/ddblock';

    // Additional text to display (defaults to "This action cannot be undone.").

    $description = t('This action cannot be undone.');

    // A caption for the button which confirms the action.

    $yes = t('Delete');

    // A caption for the link which denies the action.

    $no = t('Cancel');

    // set delta value to use in submit function.

    $form['delta'] = array(

      '#type' => 'value',

      '#value' => $delta,

    );

    // set original module value to use in submit function.

    $form['origin'] = array(

      '#type' => 'value',

      '#value' => $block->module,

    );

    // set the redirect path value to use in submit function.

    $form_state['redirect'] = $path;

    return confirm_form(

      $form,

      $question,

      $path,

      $description,

      $yes,

      $no

    );

  }

}

/**

 * Delete a dynamic display block or dynamic display block instance.

 */

function ddblock_block_confirm_delete_form_submit($form, &$form_state) {

  if (ddblock_block_confirm_delete($form_state['values']['delta'])) {

    if ($form_state['values']['origin'] == 'ddblock') {

      $succes_message = t('Dynamic display block successfully deleted!');

    }

    else {

      $succes_message = t('Dynamic display block instance successfully deleted!');

    }

    drupal_set_message($succes_message);

  }

  else {

    if ($form_state['values']['origin'] == 'ddblock') {

      $failure_message = t('There was a problem deleting the dynamic display block');

    }

    else {

      $failure_message = t('There was a problem deleting the dynamic display block instance');

    }

    drupal_set_message($failure_message);

  }

  $form_state['redirect'] = 'admin/structure/ddblock';

  return $form;

}

/**

 * Delete a dynamic display block or dynamic display block instance from the database.

 */

/*function ddblock_block_confirm_delete($delta) {

  $result = db_delete('ddblock_block')

  ->condition('delta', (int) $delta)

  ->execute();

  if (ctype_digit($delta)) {

    _block_rehash();

    // variable_del includes a clear cache.

    variable_del('ddblock_block_ddblock_' . $delta . '_cycle_settings');

    return TRUE;

  }

  else {

    return FALSE;

  }

}

*/

function ddblock_block_confirm_delete($delta) {

  _block_rehash();

  $result = db_delete('ddblock_block')

  ->condition('delta', (int) $delta)

  ->execute();

  $result = db_delete('block')

  ->condition('module', 'ddblock')

  ->condition('delta', $delta)

  ->execute();

  // variable_del includes a clear cache.

  variable_del('ddblock_block_ddblock_' . $delta . '_settings');

  variable_del('ddblock_block_ddblock_' . $delta . '_cycle_settings');

  variable_del('ddblock_block_ddblock_' . $delta . '_cycle_mapping_settings');

  return TRUE;

}

/**

 * Dynamic display block settings form for setting the content types to be used with the dynamic display block module.

 */

function ddblock_settings_form($form, &$form_state) {

  $form = array();

  // get a list of all available content types,  names parameter is used to get an associative array of content type names.

  // the key is the machine-readable name of the content type and the value the human-readable name of the content type.

  $content_types = node_type_get_names();

  $form['ddblock_node_type'] = array(

    '#type' => 'checkboxes',

    '#title' => t('Content types'),

    '#description' => t('The content type(s) that can be used with the dynamic display block module.'),

    '#default_value' => variable_get('ddblock_node_type', array()),

    '#options' => $content_types,

    '#multiple' => TRUE,

    '#required' => FALSE,

  );

  // Fetch blocks directly from modules using block.module function.

  $blocks = _block_rehash();

  // Sort blocks how we want them.

  usort($blocks, 'ddblock_block_sort');

  // Turn $blocks into form options of available blocks.

  $options = array();

  foreach ($blocks as $block) {

    // Don't include ddblock module blocks in the list.

    if ($block['module'] != 'ddblock') {

      $options[$block['module'] . ':' . $block['delta'] . ':' . $block['info']] = $block['module'] . ' - ' . $block['info'];

    }

  }

  $form['ddblock_blocks'] = array(

    '#type' => 'checkboxes',

    '#title' => t('Blocks'),

    '#description' => t('The block(s) that can be used with the dynamic display block module.'),

    '#default_value' => variable_get('ddblock_blocks', array()),

    '#options' => $options,

    '#multiple' => TRUE,

    '#required' => FALSE,

  );

  $form_state['redirect'] = 'admin/structure/ddblock/list';

  return system_settings_form($form);

}