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<?php
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/**
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* @file
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* Contains the view analyze tool code.
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*
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* This tool is a small plugin manager to perform analysis on a view and
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* report results to the user. This tool is meant to let modules that
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* provide data to Views also help users properly use that data by
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* detecting invalid configurations. Views itself comes with only a
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* small amount of analysis tools, but more could easily be added either
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* by modules or as patches to Views itself.
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*/
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/**
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* Analyze a review and return the results.
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*
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* @return
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* An array of analyze results organized into arrays keyed by 'ok', 'warning'
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* and 'error'.
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*/
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function views_analyze_view(&$view) {
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$view->init_display();
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$messages = module_invoke_all('views_analyze', $view);
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return $messages;
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}
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/**
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* Format the analyze result into a message string.
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*
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* This is based upon the format of drupal_set_message which uses separate
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* boxes for "ok", "warning" and "error".
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*/
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function views_analyze_format_result($view, $messages) {
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if (empty($messages)) {
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$messages = array(views_ui_analysis(t('View analysis can find nothing to report.'), 'ok'));
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}
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$types = array('ok' => array(), 'warning' => array(), 'error' => array());
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foreach ($messages as $message) {
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if (empty($types[$message['type']])) {
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$types[$message['type']] = array();
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}
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$types[$message['type']][] = $message['message'];
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}
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$output = '';
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foreach ($types as $type => $messages) {
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$type .= ' messages';
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$message = '';
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if (count($messages) > 1) {
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$message = theme('item_list', array('items' => $messages));
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}
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elseif ($messages) {
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$message = array_shift($messages);
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}
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if ($message) {
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$output .= "<div class=\"$type\">$message</div>";
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}
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}
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return $output;
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}
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/**
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* Format an analysis message.
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*
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* This tool should be called by any module responding to the analyze hook
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* to properly format the message. It is usually used in the form:
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* @code
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* $ret[] = views_ui_analysis(t('This is the message'), 'ok');
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* @endcode
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*
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* The 'ok' status should be used to provide information about things
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* that are acceptable. In general analysis isn't interested in 'ok'
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* messages, but instead the 'warning', which is a category for items
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* that may be broken unless the user knows what he or she is doing,
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* and 'error' for items that are definitely broken are much more useful.
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*
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* @param string $message
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* The message to report.
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* @param string $type
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* The type of message. This should be "ok", "warning" or "error". Other
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* values can be used but how they are treated by the output routine is
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* undefined.
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*/
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function views_ui_analysis($message, $type = 'error') {
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return array('message' => $message, 'type' => $type);
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}
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/**
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* Implements hook_views_analyze().
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*
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* This is the basic views analysis that checks for very minimal problems.
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* There are other analysis tools in core specific sections, such as
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* node.views.inc as well.
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*/
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function views_ui_views_analyze($view) {
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$ret = array();
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// Check for something other than the default display.
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if (count($view->display) < 2) {
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$ret[] = views_ui_analysis(t('This view has only a default display and therefore will not be placed anywhere on your site; perhaps you want to add a page or a block display.'), 'warning');
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}
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// You can give a page display the same path as an alias existing in the
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// system, so the alias will not work anymore. Report this to the user,
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// because he probably wanted something else.
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foreach ($view->display as $id => $display) {
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if (empty($display->handler)) {
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continue;
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}
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if ($display->handler->has_path() && $path = $display->handler->get_option('path')) {
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$normal_path = drupal_get_normal_path($path);
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if ($path != $normal_path) {
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$ret[] = views_ui_analysis(t('You have configured display %display with a path which is a path alias as well. This might lead to unwanted effects so you should use an internal path.', array('%display' => $display->display_title)), 'warning');
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}
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}
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}
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return $ret;
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}
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