PHP Sections::allow_modification方法代码示例

 /**
  * check if new images can be added
  *
  * This function returns TRUE if images can be added to some place,
  * and FALSE otherwise.
  *
  * @param object an instance of the Anchor interface, if any
  * @param array a set of item attributes, if any
  * @param string the type of item, e.g., 'section'
  * @return TRUE or FALSE
  */
 public static function allow_creation($item = NULL, $anchor = NULL, $variant = NULL)
 {
     global $context;
     // backward compatibility, reverse parameters :
     // $anchor is always a object and $item a array
     if (is_object($item) || is_array($anchor)) {
         $permute = $anchor;
         $anchor = $item;
         $item = $permute;
     }
     // guess the variant
     if (!$variant) {
         // most frequent case
         if (isset($item['id'])) {
             $variant = 'article';
         } elseif (is_object($anchor)) {
             $variant = $anchor->get_type();
         } else {
             return FALSE;
         }
     }
     // only in articles
     if ($variant == 'article') {
         // 'no images' option
         if (Articles::has_option('no_images', $anchor, $item)) {
             return FALSE;
         }
         // other containers
     } else {
         // in item
         if (isset($item['options']) && is_string($item['options']) && preg_match('/\\bno_images\\b/i', $item['options'])) {
             return FALSE;
         }
         // in container
         if (is_object($anchor) && $anchor->has_option('no_images', FALSE)) {
             return FALSE;
         }
     }
     // surfer is not allowed to upload a file
     if (!Surfer::may_upload()) {
         return FALSE;
     }
     // surfer is an associate
     if (Surfer::is_associate()) {
         return TRUE;
     }
     // submissions have been disallowed
     if (isset($context['users_without_submission']) && $context['users_without_submission'] == 'Y') {
         return FALSE;
     }
     // only in articles
     if ($variant == 'article') {
         // surfer is entitled to change content
         if (Articles::allow_modification($item, $anchor)) {
             return TRUE;
         }
         // surfer is an editor, and the page is not private
         if (isset($item['active']) && $item['active'] != 'N' && Articles::is_assigned($item['id'])) {
             return TRUE;
         }
         if (is_object($anchor) && !$anchor->is_hidden() && $anchor->is_assigned()) {
             return TRUE;
         }
         // only in iles
     } elseif ($variant == 'file') {
         // surfer owns the anchor
         if (is_object($anchor) && $anchor->is_owned()) {
             return TRUE;
         }
         // only in sections
     } elseif ($variant == 'section') {
         // surfer is entitled to change content
         if (Sections::allow_modification($item, $anchor)) {
             return TRUE;
         }
         // only in user profiles
     } elseif ($variant == 'user') {
         // the item is anchored to the profile of this member
         if (Surfer::get_id() && is_object($anchor) && !strcmp($anchor->get_reference(), 'user:' . Surfer::get_id())) {
             return TRUE;
         }
         // should not happen...
         if (isset($item['id']) && Surfer::is($item['id'])) {
             return TRUE;
         }
     }
     // item has been locked
     if (isset($item['locked']) && $item['locked'] == 'Y') {
         return FALSE;
//.........这里部分代码省略.........

if (Files::allow_creation($item, $anchor, 'section')) {
    Skin::define_img('FILES_UPLOAD_IMG', 'files/upload.gif');
    $context['page_tools'][] = Skin::build_link('files/edit.php?anchor=' . urlencode('section:' . $item['id']), FILES_UPLOAD_IMG . i18n::s('Add a file'), 'basic', i18n::s('Attach related files.'));
}
// add a link
if (Links::allow_creation($item, $anchor, 'section')) {
    Skin::define_img('LINKS_ADD_IMG', 'links/add.gif');
    $context['page_tools'][] = Skin::build_link('links/edit.php?anchor=' . urlencode('section:' . $item['id']), LINKS_ADD_IMG . i18n::s('Add a link'), 'basic', i18n::s('Contribute to the web and link to relevant pages.'));
}
// post an image, if upload is allowed
if (Images::allow_creation($item, $anchor, 'section')) {
    Skin::define_img('IMAGES_ADD_IMG', 'images/add.gif');
    $context['page_tools'][] = Skin::build_link('images/edit.php?anchor=' . urlencode('section:' . $item['id']), IMAGES_ADD_IMG . i18n::s('Add an image'), 'basic', i18n::s('You can upload a camera shot, a drawing, or another image file.'));
}
// ensure that the surfer can change content
if (Sections::allow_modification($item, $anchor)) {
    // modify this page
    Skin::define_img('SECTIONS_EDIT_IMG', 'sections/edit.gif');
    if (!is_object($overlay) || !($label = $overlay->get_label('edit_command', 'sections'))) {
        $label = i18n::s('Edit this section');
    }
    $context['page_tools'][] = Skin::build_link(Sections::get_url($item['id'], 'edit'), SECTIONS_EDIT_IMG . $label, 'basic', i18n::s('Press [e] to edit'), FALSE, 'e');
}
// commands for section owners
if (Sections::is_owned($item, $anchor) || Surfer::is_associate()) {
    // access previous versions, if any
    if ($has_versions) {
        Skin::define_img('SECTIONS_VERSIONS_IMG', 'sections/versions.gif');
        $context['page_tools'][] = Skin::build_link(Versions::get_url('section:' . $item['id'], 'list'), SECTIONS_VERSIONS_IMG . i18n::s('Versions'), 'basic', i18n::s('Restore a previous version if necessary'));
    }
    // lock the page

//.........这里部分代码省略.........
                 if ($count = Articles::count_for_anchor('section:' . $item['id'])) {
                     if ($count > 20) {
                         $box['bottom_bar'] += array('_count' => sprintf(i18n::ns('%d page', '%d pages', $count), $count));
                     }
                     // navigation commands for articles
                     $home = Sections::get_permalink($item);
                     $prefix = Sections::get_url($item['id'], 'navigate', 'articles');
                     $box['bottom_bar'] += Skin::navigate($home, $prefix, $count, $items_per_page, 1);
                 }
             }
             // bottom menu
             if ($box['bottom_bar']) {
                 $box['text'] .= Skin::build_list($box['bottom_bar'], 'menu_bar');
             }
             // there is some box content
             if ($box['text']) {
                 $text .= $box['text'];
             }
         }
         // layout sub-sections
         if (!isset($item['sections_layout']) || $item['sections_layout'] != 'none') {
             // select a layout
             if (!isset($item['sections_layout']) || !$item['sections_layout']) {
                 include_once 'layout_sections.php';
                 $layout = new Layout_sections();
             } else {
                 $layout = Layouts::new_($item['sections_layout'], 'section');
             }
             // the maximum number of sections per page
             if (is_object($layout)) {
                 $items_per_page = $layout->items_per_page();
             } else {
                 $items_per_page = SECTIONS_PER_PAGE;
             }
             // build a complete box
             $box = array('top_bar' => array(), 'text' => '', 'bottom_bar' => array());
             // the command to add a new section
             //if(Sections::allow_creation($item, $anchor)) {
             if ($anchor->allows('creation', 'section')) {
                 Skin::define_img('SECTIONS_ADD_IMG', 'sections/add.gif');
                 $box['top_bar'] += array('sections/edit.php?anchor=' . urlencode('section:' . $item['id']) => SECTIONS_ADD_IMG . i18n::s('Add a section'));
             }
             // top menu
             if ($box['top_bar']) {
                 $box['text'] .= Skin::build_list($box['top_bar'], 'menu_bar');
             }
             // list items by family then title
             $offset = 0 * $items_per_page;
             $items = Sections::list_by_title_for_anchor('section:' . $item['id'], $offset, $items_per_page, $layout, TRUE);
             // actually render the html for the section
             if (is_array($items) && is_string($item['sections_layout']) && $item['sections_layout'] == 'compact') {
                 $box['text'] .= Skin::build_list($items, 'compact');
             } elseif (is_array($items)) {
                 $box['text'] .= Skin::build_list($items, 'decorated');
             } elseif (is_string($items)) {
                 $box['text'] .= $items;
             }
             // count the number of subsections
             if ($count = Sections::count_for_anchor('section:' . $item['id'])) {
                 if ($count > 20) {
                     $box['bottom_bar'] = array('_count' => sprintf(i18n::ns('%d section', '%d sections', $count), $count));
                 }
                 // navigation commands for sections
                 $home = Sections::get_permalink($item);
                 $prefix = Sections::get_url($item['id'], 'navigate', 'sections');
                 $box['bottom_bar'] += Skin::navigate($home, $prefix, $count, $items_per_page, 1);
             }
             // bottom menu
             if ($box['bottom_bar']) {
                 $box['text'] .= Skin::build_list($box['bottom_bar'], 'menu_bar');
             }
             // there is some box content
             if ($box['text']) {
                 $text .= $box['text'];
             }
         }
         // ensure that the surfer can change content
         if (Sections::allow_modification($item, $anchor)) {
             // view or modify this section
             $menu = array();
             $menu[] = Skin::build_link(Sections::get_permalink($item), i18n::s('View the sub-section'), 'span');
             if (!is_object($overlay) || !($label = $overlay->get_label('edit_command', 'sections'))) {
                 $label = i18n::s('Edit this sub-section');
             }
             $menu[] = Skin::build_link(Sections::get_url($item['id'], 'edit'), $label, 'span');
             $text .= Skin::finalize_list($menu, 'menu_bar');
         }
         // assemble the full panel
         $panels[] = array('stt' . $item['id'], ucfirst(Skin::strip($item['title'], 30)), 'stc' . $item['id'], $text);
     }
     // format tabs
     if ($this->has_variant('as_array')) {
         $text = $panels;
     } else {
         $text = Skin::build_tabs($panels);
     }
     // end of processing
     SQL::free($result);
     return $text;
 }