views.module 54.6 KB
Newer Older
merlinofchaos's avatar
merlinofchaos committed
1 2 3 4 5 6 7 8 9 10 11
<?php

/**
 * @file
 * Primarily Drupal hooks and global API functions to manipulate views.
 *
 * This is the main module file for Views. The main entry points into
 * this module are views_page() and views_block(), where it handles
 * incoming page and block requests.
 */

12
use Drupal\Core\Cache\Cache;
13
use Drupal\Core\Database\Query\AlterableInterface;
14
use Drupal\Core\Language\Language;
15
use Drupal\views\ViewExecutable;
16
use Drupal\Component\Plugin\Exception\PluginException;
17
use Drupal\views\Plugin\Core\Entity\View;
18
use Drupal\views\Views;
19
use Drupal\field\FieldInstanceInterface;
20

merlinofchaos's avatar
merlinofchaos committed
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44
/**
 * Implements hook_forms().
 *
 * To provide distinct form IDs for Views forms, the View name and
 * specific display name are appended to the base ID,
 * views_form_views_form. When such a form is built or submitted, this
 * function will return the proper callback function to use for the given form.
 */
function views_forms($form_id, $args) {
  if (strpos($form_id, 'views_form_') === 0) {
    return array(
      $form_id => array(
        'callback' => 'views_form',
      ),
    );
  }
}

/**
 * Returns a form ID for a Views form using the name and display of the View.
 */
function views_form_id($view) {
  $parts = array(
    'views_form',
45
    $view->storage->id(),
merlinofchaos's avatar
merlinofchaos committed
46 47 48 49 50 51
    $view->current_display,
  );

  return implode('_', $parts);
}

52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73
/**
 * Implements hook_element_info().
 */
function views_element_info() {
  $types['view'] = array(
    '#theme_wrappers' => array('container'),
    '#pre_render' => array('views_pre_render_view_element'),
    '#name' => NULL,
    '#display_id' => 'default',
    '#arguments' => array(),
  );
  return $types;
}

/**
 * View element pre render callback.
 */
function views_pre_render_view_element($element) {
  $element['#attributes']['class'][] = 'views-element-container';

  $view = views_get_view($element['#name']);
  if ($view && $view->access($element['#display_id'])) {
74
    $element['view'] = $view->preview($element['#display_id'], $element['#arguments']);
75 76 77 78 79
  }

  return $element;
}

merlinofchaos's avatar
merlinofchaos committed
80 81 82 83
/**
 * Implement hook_theme(). Register views theming functions.
 */
function views_theme($existing, $type, $theme, $path) {
84
  Drupal::moduleHandler()->loadInclude('views', 'inc', 'views.theme');
merlinofchaos's avatar
merlinofchaos committed
85 86 87

  // Some quasi clever array merging here.
  $base = array(
88
    'file' => 'views.theme.inc',
merlinofchaos's avatar
merlinofchaos committed
89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117
  );

  // Our extra version of pager from pager.inc
  $hooks['views_mini_pager'] = $base + array(
    'variables' => array('tags' => array(), 'quantity' => 10, 'element' => 0, 'parameters' => array()),
    'pattern' => 'views_mini_pager__',
  );

  $variables = array(
    // For displays, we pass in a dummy array as the first parameter, since
    // $view is an object but the core contextual_preprocess() function only
    // attaches contextual links when the primary theme argument is an array.
    'display' => array('view_array' => array(), 'view' => NULL),
    'style' => array('view' => NULL, 'options' => NULL, 'rows' => NULL, 'title' => NULL),
    'row' => array('view' => NULL, 'options' => NULL, 'row' => NULL, 'field_alias' => NULL),
    'exposed_form' => array('view' => NULL, 'options' => NULL),
    'pager' => array(
      'view' => NULL, 'options' => NULL,
      'tags' => array(), 'quantity' => 10, 'element' => 0, 'parameters' => array()
    ),
  );

  // Default view themes
  $hooks['views_view_field'] = $base + array(
    'pattern' => 'views_view_field__',
    'variables' => array('view' => NULL, 'field' => NULL, 'row' => NULL),
  );
  $hooks['views_view_grouping'] = $base + array(
    'variables' => array('view' => NULL, 'grouping' => NULL, 'grouping_level' => NULL, 'rows' => NULL, 'title' => NULL),
118
    'template' => 'views-view-grouping',
merlinofchaos's avatar
merlinofchaos committed
119 120
  );

121
  $plugins = views_get_plugin_definitions();
merlinofchaos's avatar
merlinofchaos committed
122 123 124 125

  // Register theme functions for all style plugins
  foreach ($plugins as $type => $info) {
    foreach ($info as $plugin => $def) {
126 127 128 129 130
      // Not all plugins have theme functions, and they can also explicitly
      // prevent a theme function from being registered automatically.
      if (!isset($def['theme']) || empty($def['register_theme'])) {
        continue;
      }
merlinofchaos's avatar
merlinofchaos committed
131

132 133 134 135
      $hooks[$def['theme']] = array(
        'pattern' => $def['theme'] . '__',
        'variables' => $variables[$type],
      );
merlinofchaos's avatar
merlinofchaos committed
136

137 138 139 140 141
      if ($def['module'] == 'views') {
        $def['theme_file'] = 'views.theme.inc';
      }
      elseif (isset($def['theme_file'])) {
        $def['theme_path'] = drupal_get_path('module', $def['module']);
merlinofchaos's avatar
merlinofchaos committed
142 143
      }

144 145 146 147 148 149 150 151 152 153
      if (isset($def['theme_path'])) {
        $hooks[$def['theme']]['path'] = $def['theme_path'];
      }
      if (isset($def['theme_file'])) {
        $hooks[$def['theme']]['file'] = $def['theme_file'];
      }
      if (isset($def['theme_path']) && isset($def['theme_file'])) {
        $include = DRUPAL_ROOT . '/' . $def['theme_path'] . '/' . $def['theme_file'];
        if (is_file($include)) {
          require_once $include;
merlinofchaos's avatar
merlinofchaos committed
154 155
        }
      }
156 157 158
      if (!function_exists('theme_' . $def['theme'])) {
        $hooks[$def['theme']]['template'] = drupal_clean_css_identifier($def['theme']);
      }
merlinofchaos's avatar
merlinofchaos committed
159 160 161 162 163 164 165 166 167 168 169 170 171 172 173
    }
  }

  $hooks['views_form_views_form'] = $base + array(
    'render element' => 'form',
  );

  $hooks['views_exposed_form'] = $base + array(
    'template' => 'views-exposed-form',
    'pattern' => 'views_exposed_form__',
    'render element' => 'form',
  );

  $hooks['views_more'] = $base + array(
    'variables' => array('more_url' => NULL, 'link_text' => 'more', 'view' => NULL),
174
    'template' => 'views-more',
merlinofchaos's avatar
merlinofchaos committed
175 176 177 178 179
  );

  return $hooks;
}

180 181 182 183 184 185 186 187 188 189 190 191 192
/**
 * Returns a list of plugins and metadata about them.
 *
 * @return array
 *   An array keyed by PLUGIN_TYPE:PLUGIN_NAME, like 'display:page' or
 *   'pager:full', containing an array with the following keys:
 *   - title: The plugin's title.
 *   - type: The plugin type.
 *   - module: The module providing the plugin.
 *   - views: An array of enabled Views that are currently using this plugin,
 *     keyed by machine name.
 */
function views_plugin_list() {
193
  $plugin_data = views_get_plugin_definitions();
194 195
  $plugins = array();
  foreach (views_get_enabled_views() as $view) {
196
    foreach ($view->get('display') as $display_id => $display) {
197
      foreach ($plugin_data as $type => $info) {
198 199
        if ($type == 'display' && isset($display['display_plugin'])) {
          $name = $display['display_plugin'];
200
        }
201 202
        elseif (isset($display['display_options']["{$type}_plugin"])) {
          $name = $display['display_options']["{$type}_plugin"];
203
        }
204 205
        elseif (isset($display['display_options'][$type]['type'])) {
          $name = $display['display_options'][$type]['type'];
206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223
        }
        else {
          continue;
        }

        // Key first by the plugin type, then the name.
        $key = $type . ':' . $name;
        // Add info for this plugin.
        if (!isset($plugins[$key])) {
          $plugins[$key] = array(
            'type' => $type,
            'title' => check_plain($info[$name]['title']),
            'module' => check_plain($info[$name]['module']),
            'views' => array(),
          );
        }

        // Add this view to the list for this plugin.
224
        $plugins[$key]['views'][$view->id()] = $view->id();
225 226 227 228 229 230
      }
    }
  }
  return $plugins;
}

merlinofchaos's avatar
merlinofchaos committed
231 232 233 234 235 236 237 238 239
/**
 * A theme preprocess function to automatically allow view-based node
 * templates if called from a view.
 *
 * The 'modules/node.views.inc' file is a better place for this, but
 * we haven't got a chance to load that file before Drupal builds the
 * node portion of the theme registry.
 */
function views_preprocess_node(&$vars) {
240
  Drupal::moduleHandler()->loadInclude('node', 'views.inc');
merlinofchaos's avatar
merlinofchaos committed
241
  // The 'view' attribute of the node is added in views_preprocess_node()
242
  if (!empty($vars['node']->view) && $vars['node']->view->storage->id()) {
merlinofchaos's avatar
merlinofchaos committed
243
    $vars['view'] = $vars['node']->view;
244
    $vars['theme_hook_suggestions'][] = 'node__view__' . $vars['node']->view->storage->id();
merlinofchaos's avatar
merlinofchaos committed
245
    if (!empty($vars['node']->view->current_display)) {
246
      $vars['theme_hook_suggestions'][] = 'node__view__' . $vars['node']->view->storage->id() . '__' . $vars['node']->view->current_display;
merlinofchaos's avatar
merlinofchaos committed
247 248 249

      // If a node is being rendered in a view, and the view does not have a path,
      // prevent drupal from accidentally setting the $page variable:
250
      if ($vars['page'] && $vars['view_mode'] == 'full' && !$vars['view']->display_handler->hasPath()) {
merlinofchaos's avatar
merlinofchaos committed
251 252 253 254 255 256
        $vars['page'] = FALSE;
      }
    }
  }

  // Allow to alter comments and links based on the settings in the row plugin.
257
  if (!empty($vars['view']->rowPlugin) && $vars['view']->rowPlugin->getPluginId() == 'entity:node') {
merlinofchaos's avatar
merlinofchaos committed
258 259 260 261 262 263 264 265 266 267
    node_row_node_view_preprocess_node($vars);
  }
}

/**
 * A theme preprocess function to automatically allow view-based node
 * templates if called from a view.
 */
function views_preprocess_comment(&$vars) {
  // The 'view' attribute of the node is added in template_preprocess_views_view_row_comment()
268
  if (!empty($vars['comment']->view) && $vars['comment']->view->storage->id()) {
269
    $vars['view'] = &$vars['comment']->view;
270
    $vars['theme_hook_suggestions'][] = 'comment__view__' . $vars['comment']->view->storage->id();
merlinofchaos's avatar
merlinofchaos committed
271
    if (!empty($vars['node']->view->current_display)) {
272
      $vars['theme_hook_suggestions'][] = 'comment__view__' . $vars['comment']->view->storage->id() . '__' . $vars['comment']->view->current_display;
merlinofchaos's avatar
merlinofchaos committed
273 274 275 276 277
    }
  }
}

/**
278
 * Implements hook_permission().
merlinofchaos's avatar
merlinofchaos committed
279 280 281 282 283 284
 */
function views_permission() {
  return array(
    'access all views' => array(
      'title' => t('Bypass views access control'),
      'description' => t('Bypass access control when accessing views.'),
285
      'restrict access' => TRUE,
merlinofchaos's avatar
merlinofchaos committed
286 287 288 289 290 291 292 293
    ),
  );
}

/**
 * Implement hook_menu().
 */
function views_menu() {
294
  // Any event which causes a menu rebuild could potentially mean that the
merlinofchaos's avatar
merlinofchaos committed
295 296 297 298 299 300 301 302 303 304 305 306 307 308 309
  // Views data is updated -- module changes, profile changes, etc.
  views_invalidate_cache();
  $items = array();
  $items['views/ajax'] = array(
    'title' => 'Views',
    'page callback' => 'views_ajax',
    'theme callback' => 'ajax_base_page_theme',
    'delivery callback' => 'ajax_deliver',
    'access callback' => TRUE,
    'description' => 'Ajax callback for view loading.',
    'type' => MENU_CALLBACK,
    'file' => 'includes/ajax.inc',
  );
  // Define another taxonomy autocomplete because the default one of drupal
  // does not support a vid a argument anymore
310
  $items['admin/views/ajax/autocomplete/taxonomy/%'] = array(
merlinofchaos's avatar
merlinofchaos committed
311
    'page callback' => 'views_ajax_autocomplete_taxonomy',
312
    'page arguments' => array(5),
merlinofchaos's avatar
merlinofchaos committed
313 314 315 316 317 318 319 320 321 322 323 324 325 326
    'theme callback' => 'ajax_base_page_theme',
    'access callback' => 'user_access',
    'access arguments' => array('access content'),
    'type' => MENU_CALLBACK,
    'file' => 'includes/ajax.inc',
  );
  return $items;
}

/**
 * Implement hook_menu_alter().
 */
function views_menu_alter(&$callbacks) {
  $our_paths = array();
327
  $views = views_get_applicable_views('uses_hook_menu');
merlinofchaos's avatar
merlinofchaos committed
328 329
  foreach ($views as $data) {
    list($view, $display_id) = $data;
330
    $result = $view->executeHookMenu($display_id, $callbacks);
merlinofchaos's avatar
merlinofchaos committed
331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392
    if (is_array($result)) {
      // The menu system doesn't support having two otherwise
      // identical paths with different placeholders.  So we
      // want to remove the existing items from the menu whose
      // paths would conflict with ours.

      // First, we must find any existing menu items that may
      // conflict.  We use a regular expression because we don't
      // know what placeholders they might use.  Note that we
      // first construct the regex itself by replacing %views_arg
      // in the display path, then we use this constructed regex
      // (which will be something like '#^(foo/%[^/]*/bar)$#') to
      // search through the existing paths.
      $regex = '#^(' . preg_replace('#%views_arg#', '%[^/]*', implode('|', array_keys($result))) . ')$#';
      $matches = preg_grep($regex, array_keys($callbacks));

      // Remove any conflicting items that were found.
      foreach ($matches as $path) {
        // Don't remove the paths we just added!
        if (!isset($our_paths[$path])) {
          unset($callbacks[$path]);
        }
      }
      foreach ($result as $path => $item) {
        if (!isset($callbacks[$path])) {
          // Add a new item, possibly replacing (and thus effectively
          // overriding) one that we removed above.
          $callbacks[$path] = $item;
        }
        $our_paths[$path] = TRUE;
      }
    }
    $view->destroy();
  }
}

/**
 * Helper function for menu loading. This will automatically be
 * called in order to 'load' a views argument; primarily it
 * will be used to perform validation.
 *
 * @param $value
 *   The actual value passed.
 * @param $name
 *   The name of the view. This needs to be specified in the 'load function'
 *   of the menu entry.
 * @param $display_id
 *   The display id that will be loaded for this menu item.
 * @param $index
 *   The menu argument index. This counts from 1.
 */
function views_arg_load($value, $name, $display_id, $index) {
  static $views = array();

  // Make sure we haven't already loaded this views argument for a similar menu
  // item elsewhere.
  $key = $name . ':' . $display_id . ':' . $value . ':' . $index;
  if (isset($views[$key])) {
    return $views[$key];
  }

  if ($view = views_get_view($name)) {
393 394
    $view->setDisplay($display_id);
    $view->initHandlers();
merlinofchaos's avatar
merlinofchaos committed
395 396 397 398

    $ids = array_keys($view->argument);

    $indexes = array();
399
    $path = explode('/', $view->getPath());
merlinofchaos's avatar
merlinofchaos committed
400 401 402 403 404 405 406 407 408

    foreach ($path as $id => $piece) {
      if ($piece == '%' && !empty($ids)) {
        $indexes[$id] = array_shift($ids);
      }
    }

    if (isset($indexes[$index])) {
      if (isset($view->argument[$indexes[$index]])) {
409
        $arg = $view->argument[$indexes[$index]]->validateMenuArgument($value) ? $value : FALSE;
merlinofchaos's avatar
merlinofchaos committed
410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439
        $view->destroy();

        // Store the output in case we load this same menu item again.
        $views[$key] = $arg;
        return $arg;
      }
    }
    $view->destroy();
  }
}

/**
 * Page callback: Displays a page view, given a name and display id.
 *
 * @param $name
 *   The name of a view.
 * @param $display_id
 *   The display id of a view.
 *
 * @return
 *   Either the HTML of a fully-executed view, or MENU_NOT_FOUND.
 */
function views_page($name, $display_id) {
  $args = func_get_args();
  // Remove $name and $display_id from the arguments.
  array_shift($args);
  array_shift($args);

  // Load the view and render it.
  if ($view = views_get_view($name)) {
440 441 442 443 444 445
    if ($output = $view->executeDisplay($display_id, $args)) {
      return $output;
    }
    else {
      return array();
    }
merlinofchaos's avatar
merlinofchaos committed
446 447
  }

448
  // Fallback if we get here no view was found.
merlinofchaos's avatar
merlinofchaos committed
449 450 451 452 453 454 455 456 457 458
  return MENU_NOT_FOUND;
}

/**
 * Implements hook_page_alter().
 */
function views_page_alter(&$page) {
  // If the main content of this page contains a view, attach its contextual
  // links to the overall page array. This allows them to be rendered directly
  // next to the page title.
459
  if ($view = views_get_page_view()) {
merlinofchaos's avatar
merlinofchaos committed
460 461 462 463 464 465 466 467
    views_add_contextual_links($page, 'page', $view, $view->current_display);
  }
}

/**
 * Implements MODULE_preprocess_HOOK().
 */
function views_preprocess_html(&$variables) {
468 469 470 471 472
  // Early-return to prevent adding unnecessary JavaScript.
  if (!user_access('access contextual links')) {
    return;
  }

merlinofchaos's avatar
merlinofchaos committed
473 474 475 476 477 478 479 480 481 482
  // If the page contains a view as its main content, contextual links may have
  // been attached to the page as a whole; for example, by views_page_alter().
  // This allows them to be associated with the page and rendered by default
  // next to the page title (which we want). However, it also causes the
  // Contextual Links module to treat the wrapper for the entire page (i.e.,
  // the <body> tag) as the HTML element that these contextual links are
  // associated with. This we don't want; for better visual highlighting, we
  // prefer a smaller region to be chosen. The region we prefer differs from
  // theme to theme and depends on the details of the theme's markup in
  // page.tpl.php, so we can only find it using JavaScript. We therefore remove
483
  // the "contextual-region" class from the <body> tag here and add
merlinofchaos's avatar
merlinofchaos committed
484
  // JavaScript that will insert it back in the correct place.
485
  if (!empty($variables['page']['#views_contextual_links'])) {
486
    $key = array_search('contextual-region', $variables['attributes']['class']);
merlinofchaos's avatar
merlinofchaos committed
487
    if ($key !== FALSE) {
488
      unset($variables['attributes']['class'][$key]);
489
      $variables['attributes']['data-views-page-contextual-id'] = $variables['title_suffix']['contextual_links']['#id'];
merlinofchaos's avatar
merlinofchaos committed
490 491
      // Add the JavaScript, with a group and weight such that it will run
      // before modules/contextual/contextual.js.
492
      drupal_add_library('views', 'views.contextual-links');
merlinofchaos's avatar
merlinofchaos committed
493 494 495 496 497 498 499 500 501 502 503 504 505 506 507
    }
  }
}

/**
 * Adds contextual links associated with a view display to a renderable array.
 *
 * This function should be called when a view is being rendered in a particular
 * location and you want to attach the appropriate contextual links (e.g.,
 * links for editing the view) to it.
 *
 * The function operates by checking the view's display plugin to see if it has
 * defined any contextual links that are intended to be displayed in the
 * requested location; if so, it attaches them. The contextual links intended
 * for a particular location are defined by the 'contextual links' and
508 509 510
 * 'contextual_links_locations' properties in the plugin annotation; as a
 * result, these hook implementations have full control over where and how
 * contextual links are rendered for each display.
merlinofchaos's avatar
merlinofchaos committed
511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545
 *
 * In addition to attaching the contextual links to the passed-in array (via
 * the standard #contextual_links property), this function also attaches
 * additional information via the #views_contextual_links_info property. This
 * stores an array whose keys are the names of each module that provided
 * views-related contextual links (same as the keys of the #contextual_links
 * array itself) and whose values are themselves arrays whose keys ('location',
 * 'view_name', and 'view_display_id') store the location, name of the view,
 * and display ID that were passed in to this function. This allows you to
 * access information about the contextual links and how they were generated in
 * a variety of contexts where you might be manipulating the renderable array
 * later on (for example, alter hooks which run later during the same page
 * request).
 *
 * @param $render_element
 *   The renderable array to which contextual links will be added. This array
 *   should be suitable for passing in to drupal_render() and will normally
 *   contain a representation of the view display whose contextual links are
 *   being requested.
 * @param $location
 *   The location in which the calling function intends to render the view and
 *   its contextual links. The core system supports three options for this
 *   parameter:
 *   - 'block': Used when rendering a block which contains a view. This
 *     retrieves any contextual links intended to be attached to the block
 *     itself.
 *   - 'page': Used when rendering the main content of a page which contains a
 *     view. This retrieves any contextual links intended to be attached to the
 *     page itself (for example, links which are displayed directly next to the
 *     page title).
 *   - 'view': Used when rendering the view itself, in any context. This
 *     retrieves any contextual links intended to be attached directly to the
 *     view.
 *   If you are rendering a view and its contextual links in another location,
 *   you can pass in a different value for this parameter. However, you will
546 547 548
 *   also need to set 'contextual_links_locations' in your plugin annotation to
 *   indicate which view displays support having their contextual links
 *   rendered in the location you have defined.
merlinofchaos's avatar
merlinofchaos committed
549 550 551 552 553
 * @param $view
 *   The view whose contextual links will be added.
 * @param $display_id
 *   The ID of the display within $view whose contextual links will be added.
 *
554
 * @see \Drupal\views\Plugin\block\block\ViewsBlock::addContextualLinks()
merlinofchaos's avatar
merlinofchaos committed
555 556 557
 * @see views_page_alter()
 * @see template_preprocess_views_view()
 */
558
function views_add_contextual_links(&$render_element, $location, ViewExecutable $view, $display_id) {
merlinofchaos's avatar
merlinofchaos committed
559 560
  // Do not do anything if the view is configured to hide its administrative
  // links.
561
  if ($view->getShowAdminLinks()) {
merlinofchaos's avatar
merlinofchaos committed
562 563 564
    // Also do not do anything if the display plugin has not defined any
    // contextual links that are intended to be displayed in the requested
    // location.
565
    $plugin_id = $view->displayHandlers->get($display_id)->getPluginId();
566
    $plugin = Views::pluginManager('display')->getDefinition($plugin_id);
567
    // If contextual_links_locations are not set, provide a sane default. (To
merlinofchaos's avatar
merlinofchaos committed
568
    // avoid displaying any contextual links at all, a display plugin can still
569
    // set 'contextual_links_locations' to, e.g., {""}.)
570 571 572

    if (!isset($plugin['contextual_links_locations'])) {
      $plugin['contextual_links_locations'] = array('view');
573
    }
574
    elseif ($plugin['contextual_links_locations'] == array() || $plugin['contextual_links_locations'] == array('')) {
575 576
      $plugin['contextual_links_locations'] = array();
    }
577 578 579 580
    else {
      $plugin += array('contextual_links_locations' => array('view'));
    }

merlinofchaos's avatar
merlinofchaos committed
581
    // On exposed_forms blocks contextual links should always be visible.
582
    $plugin['contextual_links_locations'][] = 'exposed_filter';
583 584
    $has_links = !empty($plugin['contextual links']) && !empty($plugin['contextual_links_locations']);
    if ($has_links && in_array($location, $plugin['contextual_links_locations'])) {
merlinofchaos's avatar
merlinofchaos committed
585 586 587 588 589 590
      foreach ($plugin['contextual links'] as $module => $link) {
        $args = array();
        $valid = TRUE;
        if (!empty($link['argument properties'])) {
          foreach ($link['argument properties'] as $property) {
            // If the plugin is trying to create an invalid contextual link
591 592 593 594
            // (for example, "path/to/{$view->storage->property}", where
            // $view->storage->{property} does not exist), we cannot construct
            // the link, so we skip it.
            if (!property_exists($view->storage, $property)) {
merlinofchaos's avatar
merlinofchaos committed
595 596 597 598
              $valid = FALSE;
              break;
            }
            else {
599
              $args[] = $view->storage->{$property};
merlinofchaos's avatar
merlinofchaos committed
600 601 602 603 604 605
            }
          }
        }
        // If the link was valid, attach information about it to the renderable
        // array.
        if ($valid) {
606 607 608 609 610 611 612 613 614
          $render_element['#views_contextual_links'] = TRUE;
          $render_element['#contextual_links'][$module] = array(
            $link['parent path'],
            $args,
            array(
              'location' => $location,
              'name' => $view->storage->id(),
              'display_id' => $display_id,
            )
merlinofchaos's avatar
merlinofchaos committed
615 616 617 618 619 620 621 622
          );
        }
      }
    }
  }
}

/**
623
 * Prepares a list of language names.
merlinofchaos's avatar
merlinofchaos committed
624
 *
625
 * This is a wrapper around language_list to return a plain key value array.
merlinofchaos's avatar
merlinofchaos committed
626
 *
627 628 629 630 631
 * @param string $field
 *   The field of the language object which should be used as the value of the
 *   array.
 * @param int $flags
 *   (optional) Specifies the state of the languages that have to be returned.
632 633
 *   It can be: Language::STATE_CONFIGURABLE, Language::STATE_LOCKED,
 *   Language::STATE_ALL.
634 635 636
 *
 * @return array
 *   An array of language names (or $field) keyed by the langcode.
merlinofchaos's avatar
merlinofchaos committed
637 638 639
 *
 * @see locale_language_list()
 */
640
function views_language_list($field = 'name', $flags = Language::STATE_ALL) {
641
  $languages = language_list($flags);
merlinofchaos's avatar
merlinofchaos committed
642 643
  $list = array();
  foreach ($languages as $language) {
644
    $list[$language->id] = ($field == 'name') ? t($language->name) : $language->$field;
merlinofchaos's avatar
merlinofchaos committed
645 646 647 648 649
  }
  return $list;
}

/**
650
 * Implements hook_ENTITY_TYPE_create() for 'field_instance'.
merlinofchaos's avatar
merlinofchaos committed
651
 */
652
function views_field_instance_create(FieldInstanceInterface $field_instance) {
653 654
  cache('views_info')->deleteAll();
  cache('views_results')->deleteAll();
merlinofchaos's avatar
merlinofchaos committed
655
}
656

merlinofchaos's avatar
merlinofchaos committed
657
/**
658
 * Implements hook_ENTITY_TYPE_update() for 'field_instance'.
merlinofchaos's avatar
merlinofchaos committed
659
 */
660
function views_field_instance_update(FieldInstanceInterface $field_instance) {
661 662
  cache('views_info')->deleteAll();
  cache('views_results')->deleteAll();
merlinofchaos's avatar
merlinofchaos committed
663 664 665
}

/**
666
 * Implements hook_ENTITY_TYPE_delete() for 'field_instance'.
merlinofchaos's avatar
merlinofchaos committed
667
 */
668
function views_field_instance_delete(FieldInstanceInterface $field_instance) {
669 670
  cache('views_info')->deleteAll();
  cache('views_results')->deleteAll();
merlinofchaos's avatar
merlinofchaos committed
671 672 673 674 675 676
}

/**
 * Invalidate the views cache, forcing a rebuild on the next grab of table data.
 */
function views_invalidate_cache() {
677
  // Clear the views cache.
678
  cache('views_info')->deleteAll();
679 680

  // Clear the page and block cache.
681
  Cache::deleteTags(array('content' => TRUE));
682 683

  // Set the menu as needed to be rebuilt.
684
  Drupal::state()->set('menu_rebuild_needed', TRUE);
685

686 687
  $module_handler = Drupal::moduleHandler();

688 689 690 691 692 693 694
  // Set the router to be rebuild.
  // @todo Figure out why the cache rebuild is trigged but the route table
  //   does not exist yet.
  if (db_table_exists('router')) {
    Drupal::service('router.builder')->rebuild();
  }

695
  // Invalidate the block cache to update views block derivatives.
696 697
  if ($module_handler->moduleExists('block')) {
    Drupal::service('plugin.manager.block')->clearCachedDefinitions();
698 699
  }

700
  // Allow modules to respond to the Views cache being cleared.
701
  $module_handler->invokeAll('views_invalidate_cache');
merlinofchaos's avatar
merlinofchaos committed
702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717
}

/**
 * Set the current 'page view' that is being displayed so that it is easy
 * for other modules or the theme to identify.
 */
function &views_set_page_view($view = NULL) {
  static $cache = NULL;
  if (isset($view)) {
    $cache = $view;
  }

  return $cache;
}

/**
718
 * Find out what, if any, page view is currently in use.
merlinofchaos's avatar
merlinofchaos committed
719
 *
720 721 722 723
 * Note that this returns a reference, so be careful! You can unintentionally
 * modify the $view object.
 *
 * @return \Drupal\views\ViewExecutable
merlinofchaos's avatar
merlinofchaos committed
724 725 726 727 728 729 730 731 732 733
 *   A fully formed, empty $view object.
 */
function &views_get_page_view() {
  return views_set_page_view();
}

/**
 * Set the current 'current view' that is being built/rendered so that it is
 * easy for other modules or items in drupal_eval to identify
 *
734
 * @return Drupal\views\ViewExecutable
merlinofchaos's avatar
merlinofchaos committed
735 736 737 738 739 740 741 742 743 744 745
 */
function &views_set_current_view($view = NULL) {
  static $cache = NULL;
  if (isset($view)) {
    $cache = $view;
  }

  return $cache;
}

/**
746
 * Find out what, if any, current view is currently in use.
merlinofchaos's avatar
merlinofchaos committed
747
 *
748 749 750 751
 * Note that this returns a reference, so be careful! You can unintentionally
 * modify the $view object.
 *
 * @return \Drupal\views\ViewExecutable
jhodgdon's avatar
jhodgdon committed
752
 *   The current view object.
merlinofchaos's avatar
merlinofchaos committed
753 754 755 756 757
 */
function &views_get_current_view() {
  return views_set_current_view();
}

758 759 760 761
/**
 * Implements hook_hook_info().
 */
function views_hook_info() {
762 763 764 765 766 767 768 769 770
  $hooks = array();

  $hooks += array_fill_keys(array(
    'views_data',
    'views_data_alter',
    'views_analyze',
    'views_invalidate_cache',
  ), array('group' => 'views'));

771 772 773 774 775 776 777
  // Register a views_plugins alter hook for all plugin types.
  foreach (ViewExecutable::getPluginTypes() as $type) {
    $hooks['views_plugins_' . $type . '_alter'] = array(
      'group' => 'views',
    );
  }

778 779 780 781 782 783 784 785 786 787 788 789
  $hooks += array_fill_keys(array(
    'views_query_substitutions',
    'views_form_substitutions',
    'views_pre_view',
    'views_pre_build',
    'views_post_build',
    'views_pre_execute',
    'views_post_execute',
    'views_pre_render',
    'views_post_render',
    'views_query_alter',
  ), array('group' => 'views_execution'));
790 791

  return $hooks;
merlinofchaos's avatar
merlinofchaos committed
792 793 794
}

/**
795 796 797
 * Implements hook_library_info().
 */
function views_library_info() {
798 799 800 801 802 803 804 805
  $path = drupal_get_path('module', 'views');
  $libraries['views.module'] = array(
    'title' => 'Views base',
    'version' => VERSION,
    'css' => array(
      "$path/css/views.module.css"
    ),
  );
806 807 808 809
  $libraries['views.ajax'] = array(
    'title' => 'Views AJAX',
    'version' => VERSION,
    'js' => array(
810 811
      "$path/js/base.js" => array('group' => JS_DEFAULT),
      "$path/js/ajax_view.js" => array('group' => JS_DEFAULT),
812 813 814 815 816 817 818 819 820 821
    ),
    'dependencies' => array(
      array('system', 'jquery'),
      array('system', 'drupal'),
      array('system', 'drupalSettings'),
      array('system', 'jquery.once'),
      array('system', 'jquery.form'),
      array('system', 'drupal.ajax'),
    ),
  );
822 823 824 825
  $libraries['views.contextual-links'] = array(
    'title' => 'Views Contextual links',
    'version' => VERSION,
    'js' => array(
826
      "$path/js/views-contextual.js" => array('group' => JS_LIBRARY, 'weight' => -10),
827 828 829 830 831 832
    ),
    'dependencies' => array(
      array('system', 'jquery'),
      array('system', 'drupal'),
    ),
  );
merlinofchaos's avatar
merlinofchaos committed
833

834
  return $libraries;
merlinofchaos's avatar
merlinofchaos committed
835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851
}

/**
 * Fetch a list of all base tables available
 *
 * @param $type
 *   Either 'display', 'style' or 'row'
 * @param $key
 *   For style plugins, this is an optional type to restrict to. May be 'normal',
 *   'summary', 'feed' or others based on the neds of the display.
 * @param $base
 *   An array of possible base tables.
 *
 * @return
 *   A keyed array of in the form of 'base_table' => 'Description'.
 */
function views_fetch_plugin_names($type, $key = NULL, $base = array()) {
852
  $definitions = Views::pluginManager($type)->getDefinitions();
853
  $plugins = array();
merlinofchaos's avatar
merlinofchaos committed
854

aspilicious's avatar
aspilicious committed
855
  foreach ($definitions as $id => $plugin) {
856 857
    // Skip plugins that don't conform to our key, if they have one.
    if ($key && isset($plugin['display_types']) && !in_array($key, $plugin['display_types'])) {
858 859
      continue;
    }
860

861
    if (empty($plugin['no_ui']) && (empty($base) || empty($plugin['base']) || array_intersect($base, $plugin['base']))) {
aspilicious's avatar
aspilicious committed
862
      $plugins[$id] = $plugin['title'];
merlinofchaos's avatar
merlinofchaos committed
863 864 865
    }
  }

866 867 868
  if (!empty($plugins)) {
    asort($plugins);
    return $plugins;
merlinofchaos's avatar
merlinofchaos committed
869
  }
870

871
  return $plugins;
merlinofchaos's avatar
merlinofchaos committed
872 873
}

874
/**
875 876 877
 * Gets all the views plugin definitions.
 *
 * @return array
878
 *   An array of plugin definitions for all types.
879
 */
880 881 882
function views_get_plugin_definitions() {
  $plugins = array();
  foreach (ViewExecutable::getPluginTypes() as $plugin_type) {
883
    $plugins[$plugin_type] = Views::pluginManager($plugin_type)->getDefinitions();
884 885
  }

886
  return $plugins;
887 888
}

889 890 891 892
/**
 * Get enabled display extenders.
 */
function views_get_enabled_display_extenders() {
893
  $enabled = array_filter((array) config('views.settings')->get('display_extenders'));
894

895
  return drupal_map_assoc($enabled);
896 897
}

merlinofchaos's avatar
merlinofchaos committed
898 899 900 901
/**
 * Return a list of all views and display IDs that have a particular
 * setting in their display's plugin settings.
 *
902 903 904 905 906
 * @param string $type
 *   A flag from the display plugin definitions (e.g, 'uses_hook_menu').
 *
 * @return array
 *   A list of arrays containing the $view and $display_id.
merlinofchaos's avatar
merlinofchaos committed
907 908 909 910 911 912 913 914
 * @code
 * array(
 *   array($view, $display_id),
 *   array($view, $display_id),
 * );
 * @endcode
 */
function views_get_applicable_views($type) {
915
  // Get all display plugins which provides the type.
916
  $display_plugins = Views::pluginManager('display')->getDefinitions();
917 918 919 920
  $ids = array();
  foreach ($display_plugins as $id => $definition) {
    if (!empty($definition[$type])) {
      $ids[$id] = $id;
merlinofchaos's avatar
merlinofchaos committed
921
    }
922
  }
merlinofchaos's avatar
merlinofchaos committed
923

924
  $entity_ids = Drupal::service('entity.query')->get('view')
925
    ->condition('status', TRUE)
926 927
    ->condition("display.*.display_plugin", $ids, 'IN')
    ->execute();
merlinofchaos's avatar
merlinofchaos committed
928

929
  $result = array();
930
  foreach (Drupal::entityManager()->getStorageController('view')->loadMultiple($entity_ids) as $view) {
931 932
    // Check each display to see if it meets the criteria and is enabled.
    $executable = $view->get('executable');
933
    $executable->initDisplay();
934 935 936
    foreach ($executable->displayHandlers as $id => $handler) {
      if (!empty($handler->definition[$type]) && $handler->isEnabled()) {
        $result[] = array($executable, $id);
merlinofchaos's avatar
merlinofchaos committed
937 938 939
      }
    }
  }
940

merlinofchaos's avatar
merlinofchaos committed
941 942 943 944
  return $result;
}

/**
945
 * Returns an array of all views as fully loaded $view objects.
merlinofchaos's avatar
merlinofchaos committed
946
 */
947
function views_get_all_views() {
948
  return Drupal::entityManager()->getStorageController('view')->loadMultiple();
949 950
}

merlinofchaos's avatar
merlinofchaos committed
951 952 953 954
/**
 * Returns an array of all enabled views, as fully loaded $view objects.
 */
function views_get_enabled_views() {
955
  $query = Drupal::entityQuery('view')
956 957 958 959
    ->condition('status', TRUE)
    ->execute();

  return entity_load_multiple('view', $query);
merlinofchaos's avatar
merlinofchaos committed
960 961 962 963 964 965
}

/**
 * Returns an array of all disabled views, as fully loaded $view objects.
 */
function views_get_disabled_views() {
966
  $query = Drupal::entityQuery('view')
967 968 969 970
    ->condition('status', FALSE)
    ->execute();

  return entity_load_multiple('view', $query);
merlinofchaos's avatar
merlinofchaos committed
971 972 973 974 975 976 977 978 979 980 981 982 983 984
}

/**
 * Return an array of view as options array, that can be used by select,
 * checkboxes and radios as #options.
 *
 * @param bool $views_only
 *  If TRUE, only return views, not displays.
 * @param string $filter
 *  Filters the views on status. Can either be 'all' (default), 'enabled' or
 *  'disabled'
 * @param  mixed $exclude_view
 *  view or current display to exclude
 *  either a
985
 *  - views object (containing $exclude_view->storage->name and $exclude_view->current_display)
merlinofchaos's avatar
merlinofchaos committed
986 987 988 989 990
 *  - views name as string:  e.g. my_view
 *  - views name and display id (separated by ':'): e.g. my_view:default
 * @param bool $optgroup
 *  If TRUE, returns an array with optgroups for each view (will be ignored for
 *  $views_only = TRUE). Can be used by select
991 992
 * @param bool $sort
 *  If TRUE, the list of views is sorted ascending.
merlinofchaos's avatar
merlinofchaos committed
993 994 995 996 997
 *
 * @return array
 *  an associative array for use in select.
 *  - key: view name and display id separated by ':', or the view name only
 */
998
function views_get_views_as_options($views_only = FALSE, $filter = 'all', $exclude_view = NULL, $optgroup = FALSE, $sort = FALSE) {
merlinofchaos's avatar
merlinofchaos committed
999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017

  // Filter the big views array.
  switch ($filter) {
    case 'all':
    case 'disabled':
    case 'enabled':
      $func = "views_get_{$filter}_views";
      $views = $func();
      break;
    default:
      return array();
  }

  // Prepare exclude view strings for comparison.
  if (empty($exclude_view)) {
    $exclude_view_name = '';
    $exclude_view_display = '';
  }
  elseif (is_object($exclude_view)) {
1018
    $exclude_view_name = $exclude_view->storage->id();
merlinofchaos's avatar
merlinofchaos committed
1019 1020 1021
    $exclude_view_display = $exclude_view->current_display;
  }
  else {
1022 1023 1024
    // Append a ':' to the $exclude_view string so we always have more than one
    // item to explode.
    list($exclude_view_name, $exclude_view_display) = explode(':', "$exclude_view:");
merlinofchaos's avatar
merlinofchaos committed
1025 1026 1027 1028
  }

  $options = array();
  foreach ($views as $view) {
1029
    $id = $view->id();
merlinofchaos's avatar
merlinofchaos committed
1030
    // Return only views.
1031
    if ($views_only && $id != $exclude_view_name) {
1032
      $options[$id] = $view->label();
merlinofchaos's avatar
merlinofchaos committed
1033 1034 1035
    }
    // Return views with display ids.
    else {
1036
      foreach ($view->get('display') as $display_id => $display) {
1037
        if (!($id == $exclude_view_name && $display_id == $exclude_view_display)) {
merlinofchaos's avatar
merlinofchaos committed
1038
          if ($optgroup) {
1039
            $options[$id][$id . ':' . $display['id']] = t('@view : @display', array('@view' => $id, '@display' => $display['id']));
merlinofchaos's avatar
merlinofchaos committed
1040 1041
          }
          else {
1042
            $options[$id . ':' . $display['id']] = t('View: @view - Display: @display', array('@view' => $id, '@display' => $display['id']));
merlinofchaos's avatar
merlinofchaos committed
1043 1044 1045 1046 1047
          }
        }
      }
    }
  }
1048 1049 1050
  if ($sort) {
    ksort($options);
  }
merlinofchaos's avatar
merlinofchaos committed
1051 1052 1053 1054
  return $options;
}

/**
dawehner's avatar
dawehner committed
1055 1056
 * Returns whether the view is enabled.
 *
1057
 * @param Drupal\views\Plugin\Core\Entity\View $view
xjm's avatar
xjm committed
1058
 *   The view object to check.
dawehner's avatar
dawehner committed
1059 1060 1061
 *
 * @return bool
 *   Returns TRUE if a view is enabled, FALSE otherwise.
merlinofchaos's avatar
merlinofchaos committed
1062
 */
1063
function views_view_is_enabled(View $view) {
1064
  return $view->status();
merlinofchaos's avatar
merlinofchaos committed
1065 1066 1067
}

/**
dawehner's avatar
dawehner committed
1068 1069
 * Returns whether the view is disabled.
 *
1070
 * @param Drupal\views\Plugin\Core\Entity\View $view
xjm's avatar
xjm committed
1071
 *   The view object to check.
dawehner's avatar
dawehner committed
1072 1073 1074
 *
 * @return bool
 *   Returns TRUE if a view is disabled, FALSE otherwise.
merlinofchaos's avatar
merlinofchaos committed
1075
 */
1076
function views_view_is_disabled(View $view) {
1077
  return !$view->status();
merlinofchaos's avatar
merlinofchaos committed
1078 1079
}

1080
/**
1081
 * Enables and saves a view.
1082
 *
1083 1084
 * @param Drupal\views\Plugin\Core\Entity\View $view
 *   The View object to disable.
1085
 */
1086
function views_enable_view(View $view) {
1087
  $view->enable()->save();
1088 1089 1090
}

/**
1091
 * Disables and saves a view.
1092
 *
1093 1094
 * @param Drupal\views\Plugin\Core\Entity\View $view
 *   The View object to disable.
1095
 */
1096
function views_disable_view(View $view) {
1097
  $view->disable()->save();
1098 1099
}

merlinofchaos's avatar
merlinofchaos committed
1100
/**
xjm's avatar
xjm committed
1101
 * Loads a view from configuration.
merlinofchaos's avatar
merlinofchaos committed
1102
 *
xjm's avatar
xjm committed
1103
 * @param string $name
merlinofchaos's avatar
merlinofchaos committed
1104
 *   The name of the view.
xjm's avatar
xjm committed
1105
 *
1106
 * @return Drupal\views\ViewExecutable
dawehner's avatar
dawehner committed
1107
 *   A reference to the $view object.
merlinofchaos's avatar
merlinofchaos committed
1108
 */
1109 1110
function views_get_view($name) {
  $view = entity_load('view', $name);
merlinofchaos's avatar
merlinofchaos committed
1111
  if ($view) {
1112
    return $view->get('executable');
merlinofchaos's avatar
merlinofchaos committed
1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141
  }
}

/**
 * Returns TRUE if the passed-in view contains handlers with views form
 * implementations, FALSE otherwise.
 */
function views_view_has_form_elements($view) {
  foreach ($view->field as $field) {
    if (property_exists($field, 'views_form_callback') || method_exists($field, 'views_form')) {
      return TRUE;
    }
  }
  $area_handlers = array_merge(array_values($view->header), array_values($view->footer));
  $empty = empty($view->result);
  foreach ($area_handlers as $area) {
    if (method_exists($area, 'views_form') && !$area->views_form_empty($empty)) {
      return TRUE;
    }
  }
  return FALSE;
}

/**
 * This is the entry function. Just gets the form for the current step.
 * The form is always assumed to be multistep, even if it has only one
 * step (the default 'views_form_views_form' step). That way it is actually
 * possible for modules to have a multistep form if they need to.
 */
1142
function views_form($form, &$form_state, ViewExecutable $view, $output) {
merlinofchaos's avatar
merlinofchaos committed
1143 1144 1145 1146 1147 1148 1149 1150
  $form_state['step'] = isset($form_state['step']) ? $form_state['step'] : 'views_form_views_form';
  // Cache the built form to prevent it from being rebuilt prior to validation
  // and submission, which could lead to data being processed incorrectly,
  // because the views rows (and thus, the form elements as well) have changed
  // in the meantime.
  $form_state['cache'] = TRUE;

  $form = array();
1151
  $query = drupal_get_query_parameters();
1152
  $form['#action'] = url($view->getUrl(), array('query' => $query));
merlinofchaos's avatar
merlinofchaos committed
1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166
  // Tell the preprocessor whether it should hide the header, footer, pager...
  $form['show_view_elements'] = array(
    '#type' => 'value',
    '#value' => ($form_state['step'] == 'views_form_views_form') ? TRUE : FALSE,
  );

  $form = $form_state['step']($form, $form_state, $view, $output);
  return $form;
}

/**
 * Callback for the main step of a Views form.
 * Invoked by views_form().
 */
1167
function views_form_views_form($form, &$form_state, ViewExecutable $view, $output) {
merlinofchaos's avatar
merlinofchaos committed
1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182
  $form['#prefix'] = '<div class="views-form">';
  $form['#suffix'] = '</div>';
  $form['#theme'] = 'views_form_views_form';
  $form['#validate'][] = 'views_form_views_form_validate';
  $form['#submit'][] = 'views_form_views_form_submit';

  // Add the output markup to the form array so that it's included when the form
  // array is passed to the theme function.
  $form['output'] = array(
    '#markup' => $output,
    // This way any additional form elements will go before the view
    // (below the exposed widgets).
    '#weight' => 50,
  );

1183 1184 1185 1186 1187 1188 1189 1190
  $form['actions'] = array(
    '#type' => 'actions',
  );
  $form['actions']['submit'] = array(
    '#type' => 'submit',
    '#value' => t('Save'),
  );

merlinofchaos's avatar
merlinofchaos committed
1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319
  $substitutions = array();
  foreach ($view->field as $field_name => $field) {
    $form_element_name = $field_name;
    if (method_exists($field, 'form_element_name')) {
      $form_element_name = $field->form_element_name();
    }
    $method_form_element_row_id_exists = FALSE;
    if (method_exists($field, 'form_element_row_id')) {
      $method_form_element_row_id_exists = TRUE;
    }

    // If the field provides a views form, allow it to modify the $form array.
    $has_form = FALSE;
    if (property_exists($field, 'views_form_callback')) {
      $callback = $field->views_form_callback;
      $callback($view, $field, $form, $form_state);
      $has_form = TRUE;
    }
    elseif (method_exists($field, 'views_form')) {
      $field->views_form($form, $form_state);
      $has_form = TRUE;
    }

    // Build the substitutions array for use in the theme function.
    if ($has_form) {
      foreach ($view->result as $row_id => $row) {
        if ($method_form_element_row_id_exists) {
          $form_element_row_id = $field->form_element_row_id($row_id);
        }
        else {
          $form_element_row_id = $row_id;
        }

        $substitutions[] = array(
          'placeholder' => '<!--form-item-' . $form_element_name . '--' . $form_element_row_id . '-->',
          'field_name' => $form_element_name,
          'row_id' => $form_element_row_id,
        );
      }
    }
  }

  // Give the area handlers a chance to extend the form.
  $area_handlers = array_merge(array_values($view->header), array_values($view->footer));
  $empty = empty($view->result);
  foreach ($area_handlers as $area) {
    if (method_exists($area, 'views_form') && !$area->views_form_empty($empty)) {
      $area->views_form($form, $form_state);
    }
  }

  $form['#substitutions'] = array(
    '#type' => 'value',
    '#value' => $substitutions,
  );

  return $form;
}

/**
 * Validate handler for the first step of the views form.
 * Calls any existing views_form_validate functions located
 * on the views fields.
 */
function views_form_views_form_validate($form, &$form_state) {
  $view = $form_state['build_info']['args'][0];

  // Call the validation method on every field handler that has it.
  foreach ($view->field as $field_name => $field) {
    if (method_exists($field, 'views_form_validate')) {
      $field->views_form_validate($form, $form_state);
    }
  }

  // Call the validate method on every area handler that has it.
  foreach (array('header', 'footer') as $area) {
    foreach ($view->{$area} as $area_name => $area_handler) {
      if (method_exists($area_handler, 'views_form_validate')) {
        $area_handler->views_form_validate($form, $form_state);
      }
    }
  }
}

/**
 * Submit handler for the first step of the views form.
 * Calls any existing views_form_submit functions located
 * on the views fields.
 */
function views_form_views_form_submit($form, &$form_state) {
  $view = $form_state['build_info']['args'][0];

  // Call the submit method on every field handler that has it.
  foreach ($view->field as $field_name => $field) {
    if (method_exists($field, 'views_form_submit')) {
      $field->views_form_submit($form, $form_state);
    }
  }

  // Call the submit method on every area handler that has it.
  foreach (array('header', 'footer') as $area) {
    foreach ($view->{$area} as $area_name => $area_handler) {
      if (method_exists($area_handler, 'views_form_submit')) {
        $area_handler->views_form_submit($form, $form_state);
      }
    }
  }
}

/**
 * Form builder for the exposed widgets form.
 *
 * Be sure that $view and $display are references.
 */
function views_exposed_form($form, &$form_state) {
  // Don't show the form when batch operations are in progress.
  if ($batch = batch_get() && isset($batch['current_set'])) {
    return array(
      // Set the theme callback to be nothing to avoid errors in template_preprocess_views_exposed_form().
      '#theme' => '',
    );
  }

  // Make sure that we validate because this form might be submitted
  // multiple times per page.
  $form_state['must_validate'] = TRUE;
  $view = &$form_state['view'];
  $display = &$form_state['display'];

1320
  $form_state['input'] = $view->getExposedInput();
merlinofchaos's avatar
merlinofchaos committed
1321 1322 1323 1324

  // Let form plugins know this is for exposed widgets.
  $form_state['exposed'] = TRUE;
  // Check if the form was already created
1325
  if ($cache = views_exposed_form_cache($view->storage->id(), $view->current_display)) {
merlinofchaos's avatar
merlinofchaos committed
1326 1327 1328 1329 1330 1331 1332 1333
    return $cache;
  }

  $form['#info'] = array();

  // Go through each handler and let it generate its exposed widget.
  foreach ($view->display_handler->handlers as $type => $value) {
    foreach ($view->$type as $id => $handler) {
1334
      if ($handler->canExpose() && $handler->isExposed()) {
1335 1336 1337 1338 1339
        // Grouped exposed filters have their own forms.
        // Instead of render the standard exposed form, a new Select or
        // Radio form field is rendered with the available groups.
        // When an user choose an option the selected value is split
        // into the operator and value that the item represents.
1340
        if ($handler->isAGroup()) {
1341
          $handler->groupForm($form, $form_state);
1342 1343 1344
          $id = $handler->options['group_info']['identifier'];
        }
        else {
1345
          $handler->buildExposedForm($form, $form_state);
1346
        }
1347
        if ($info = $handler->exposedInfo()) {
merlinofchaos's avatar
merlinofchaos committed
1348 1349 1350 1351 1352 1353 1354
          $form['#info']["$type-$id"] = $info;
        }
      }
    }
  }

  $form['submit'] = array(
1355 1356
    // Prevent from showing up in $_GET.
    '#name' => '',
merlinofchaos's avatar
merlinofchaos committed
1357 1358
    '#type' => 'submit',
    '#value' => t('Apply'),
1359
    '#id' => drupal_html_id('edit-submit-' . $view->storage->id()),
merlinofchaos's avatar
merlinofchaos committed
1360 1361
  );

1362
  $form['#action'] = url($view->display_handler->getUrl());
1363
  $form['#theme'] = $view->buildThemeFunctions('views_exposed_form');
1364
  $form['#id'] = drupal_clean_css_identifier('views_exposed_form-' . check_plain($view->storage->id()) . '-' . check_plain($display['id']));
merlinofchaos's avatar
merlinofchaos committed
1365 1366 1367
//  $form['#attributes']['class'] = array('views-exposed-form');

  $exposed_form_plugin = $form_state['exposed_form_plugin'];
1368
  $exposed_form_plugin->exposedFormAlter($form, $form_state);
merlinofchaos's avatar
merlinofchaos committed
1369 1370

  // Save the form
1371
  views_exposed_form_cache($view->storage->id(), $view->current_display, $form);
merlinofchaos's avatar
merlinofchaos committed
1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394

  return $form;
}

/**
 * Implement hook_form_alter for the exposed form.
 *
 * Since the exposed form is a GET form, we don't want it to send a wide
 * variety of information.
 */
function views_form_views_exposed_form_alter(&$form, &$form_state) {
  $form['form_build_id']['#access'] = FALSE;
  $form['form_token']['#access'] = FALSE;
  $form['form_id']['#access'] = FALSE;
}

/**
 * Validate handler for exposed filters
 */
function views_exposed_form_validate(&$form, &$form_state) {
  foreach (array('field', 'filter') as $type) {
    $handlers = &$form_state['view']->$type;
    foreach ($handlers as $key => $handler) {
1395
      $handlers[$key]->validateExposed($form, $form_state);
merlinofchaos's avatar
merlinofchaos committed
1396 1397 1398
    }
  }
  $exposed_form_plugin = $form_state['exposed_form_plugin'];
1399
  $exposed_form_plugin->exposedFormValidate($form, $form_state);
merlinofchaos's avatar
merlinofchaos committed
1400 1401 1402 1403 1404 1405 1406 1407 1408
}

/**
 * Submit handler for exposed filters
 */
function views_exposed_form_submit(&$form, &$form_state) {
  foreach (array('field', 'filter') as $type) {
    $handlers = &$form_state['view']->$type;
    foreach ($handlers as $key => $info) {
1409
      $handlers[$key]->submitExposed($form, $form_state);
merlinofchaos's avatar
merlinofchaos committed
1410 1411 1412 1413 1414
    }
  }
  $form_state['view']->exposed_data = $form_state['values'];
  $form_state['view']->exposed_raw_input = array();

1415
  $exclude = array('submit', 'form_build_id', 'form_id', 'form_token', 'exposed_form_plugin', '', 'reset');
merlinofchaos's avatar
merlinofchaos committed
1416
  $exposed_form_plugin = $form_state['exposed_form_plugin'];
1417
  $exposed_form_plugin->exposedFormSubmit($form, $form_state, $exclude);
merlinofchaos's avatar
merlinofchaos committed
1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438

  foreach ($form_state['values'] as $key => $value) {
    if (!in_array($key, $exclude)) {
      $form_state['view']->exposed_raw_input[$key] = $value;
    }
  }
}

/**
 * Save the Views exposed form for later use.
 *
 * @param $views_name
 *   String. The views name.
 * @param $display_name
 *   String. The current view display name.
 * @param $form_output
 *   Array (optional). The form structure. Only needed when inserting the value.
 * @return
 *   Array. The form structure, if any. Otherwise, return FALSE.
 */
function views_exposed_form_cache($views_name, $display_name, $form_output = NULL) {
1439 1440 1441
  // When running tests for exposed filters, this cache should
  // be cleared between each test.
  $views_exposed = &drupal_static(__FUNCTION__);
merlinofchaos's avatar
merlinofchaos committed
1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458

  // Save the form output
  if (!empty($form_output)) {
    $views_exposed[$views_name][$display_name] = $form_output;
    return;
  }

  // Return the form output, if any
  return empty($views_exposed[$views_name][$display_name]) ? FALSE : $views_exposed[$views_name][$display_name];
}

/**
 * Implements hook_query_TAG_alter().
 *
 * This is the hook_query_alter() for queries tagged by Views and is used to
 * add in substitutions from hook_views_query_substitutions().
 */
1459
function views_query_views_alter(AlterableInterface $query) {
merlinofchaos's avatar
merlinofchaos committed
1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479
  $substitutions = $query->getMetaData('views_substitutions');
  $tables =& $query->getTables();
  $where =& $query->conditions();

  // Replaces substitions in tables.
  foreach ($tables as $table_name => $table_metadata) {
    foreach ($table_metadata['arguments'] as $replacement_key => $value) {
      if (isset($substitutions[$value])) {
        $tables[$table_name]['arguments'][$replacement_key] = $substitutions[$value];
      }
    }
  }

  // Replaces substitions in filter criterias.
  _views_query_tag_alter_condition($query, $where, $substitutions);
}

/**
 * Replaces the substitutions recursive foreach condition.
 */
1480
function _views_query_tag_alter_condition(AlterableInterface $query, &$conditions, $substitutions) {
merlinofchaos's avatar
merlinofchaos committed
1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513
  foreach ($conditions as $condition_id => &$condition) {
    if (is_numeric($condition_id)) {
      if (is_string($condition['field'])) {
        $condition['field'] = str_replace(array_keys($substitutions), array_values($substitutions), $condition['field']);
      }
      elseif (is_object($condition['field'])) {
        $sub_conditions =& $condition['field']->conditions();
        _views_query_tag_alter_condition($query, $sub_conditions, $substitutions);
      }
      // $condition['value'] is a subquery so alter the subquery recursive.
      // Therefore take sure to get the metadata of the main query.
      if (is_object($condition['value'])) {
        $subquery = $condition['value'];
        $subquery->addMetaData('views_substitutions', $query->getMetaData('views_substitutions'));
        views_query_views_alter($condition['value']);
      }
      elseif (isset($condition['value'])) {
        $condition['value'] = str_replace(array_keys($substitutions), array_values($substitutions), $condition['value']);
      }
    }
  }
}

/**
 * Embed a view using a PHP snippet.
 *
 * This function is meant to be called from PHP snippets, should one wish to
 * embed a view in a node or something. It's meant to provide the simplest
 * solution and doesn't really offer a lot of options, but breaking the function
 * apart is pretty easy, and this provides a worthwhile guide to doing so.
 *
 * Note that this function does NOT display the title of the view. If you want
 * to do that, you will need to do what this function does manually, by
1514
 * loading the view, getting the preview and then getting $view->getTitle().
merlinofchaos's avatar
merlinofchaos committed
1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565
 *
 * @param $name
 *   The name of the view to embed.
 * @param $display_id
 *   The display id to embed. If unsure, use 'default', as it will always be
 *   valid. But things like 'page' or 'block' should work here.
 * @param ...
 *   Any additional parameters will be passed as arguments.
 */
function views_embed_view($name, $display_id = 'default') {
  $args = func_get_args();
  array_shift($args); // remove $name
  if (count($args)) {
    array_shift($args); // remove $display_id
  }

  $view = views_get_view($name);
  if (!$view || !$view->access($display_id)) {
    return;
  }

  return $view->preview($display_id, $args);
}

/**
 * Get the result of a view.
 *
 * @param string $name
 *   The name of the view to retrieve the data from.
 * @param string $display_id
 *   The display id. On the edit page for the view in question, you'll find
 *   a list of displays at the left side of the control area. "Master"
 *   will be at the top of that list. Hover your cursor over the name of the
 *   display you want to use. An URL will appear in the status bar of your
 *   browser. This is usually at the bottom of the window, in the chrome.
 *   Everything after #views-tab- is the display ID, e.g. page_1.
 * @param ...
 *   Any additional parameters will be passed as arguments.
 * @return array
 *   An array containing an object for each view item.
 */
function views_get_view_result($name, $display_id = NULL) {
  $args = func_get_args();
  array_shift($args); // remove $name
  if (count($args)) {
    array_shift($args); // remove $display_id