function page_manager_page_form_basic_validate

Validate the basic form.

File

page_manager/plugins/tasks/page.admin.inc, line 486

Code

function page_manager_page_form_basic_validate(&$form, &$form_state) {
    // Ensure path is unused by other pages.
    $page = $form_state['page']->subtask['subtask'];
    $name = !empty($form_state['values']['name']) ? $form_state['values']['name'] : $page->name;
    if (empty($name)) {
        form_error($form['name'], t('Name is required.'));
    }
    // If this is new, make sure the name is unique:
    if (empty($page->name)) {
        $test = page_manager_page_load($name);
        if ($test) {
            form_error($form['name'], t('That name is used by another page: @page', array(
                '@page' => $test->admin_title,
            )));
        }
        // Ensure name fits the rules:
        if (preg_match('/[^a-zA-Z0-9_]/', $form_state['values']['name'])) {
            form_error($form['name'], t('Page name must be alphanumeric or underscores only.'));
        }
    }
    $pages = page_manager_page_load_all();
    foreach ($pages as $test) {
        if ($test->name != $name && $test->path == $form_state['values']['path'] && empty($test->disabled)) {
            form_error($form['path'], t('That path is used by another page: @page', array(
                '@page' => $test->admin_title,
            )));
        }
    }
    // Ensure path is unused by things NOT pages. We do the double check because
    // we're checking against our page callback.
    $path = array();
    if (empty($form_state['values']['path'])) {
        form_error($form['path'], t('Path is required.'));
        // Stop processing here if there is no path.
        return;
    }
    $found = FALSE;
    $error = FALSE;
    foreach (explode('/', $form_state['values']['path']) as $position => $bit) {
        if (!isset($bit) || $bit === '') {
            continue;
        }
        if ($bit == '%' || $bit == '!') {
            form_error($form['path'], t('You cannot have an unnamed placeholder (% or ! by itself). Please name your placeholder by adding a short piece of descriptive text to the % or !, such as %user or %node.'));
        }
        if ($bit[0] == '%') {
            if ($found) {
                form_error($form['path'], t('You cannot have a dynamic path element after an optional path element.'));
            }
            if ($position == 0) {
                form_error($form['path'], t('The first element in a path may not be dynamic.'));
            }
            $path[] = '%';
        }
        elseif ($bit[0] == '!') {
            $found = TRUE;
        }
        else {
            if ($found) {
                form_error($form['path'], t('You cannot have a static path element after an optional path element.'));
            }
            $path[] = $bit;
        }
    }
    // Check to see if something that isn't a page manager page is using the path.
    $path = implode('/', $path);
    $result = db_query('SELECT * FROM {menu_router} WHERE path = :path', array(
        ':path' => $path,
    ));
    foreach ($result as $router) {
        if ($router->page_callback != 'page_manager_page_execute') {
            form_error($form['path'], t('That path is already in use. This system cannot override existing paths.'));
        }
    }
    // Ensure the path is not already an alias to something else.
    if (strpos($path, '%') === FALSE) {
        $alias = db_query('SELECT alias, source FROM {url_alias} WHERE alias = :path', array(
            ':path' => $path,
        ))->fetchObject();
        if ($alias) {
            form_error($form['path'], t('That path is currently assigned to be an alias for @alias. This system cannot override existing aliases.', array(
                '@alias' => $alias->source,
            )));
        }
    }
    else {
        if (!empty($form_state['values']['frontpage'])) {
            form_error($form['path'], t('You cannot make this page your site home page if it uses % placeholders.'));
        }
    }
    // Ensure path is properly formed.
    $args = page_manager_page_get_named_arguments($form_state['values']['path']);
    if ($invalid_args = array_filter($args, 'page_manager_page_form_basic_validate_filter')) {
        foreach ($invalid_args as $arg => $position) {
            form_error($form['path'], t('Duplicated argument %arg', array(
                '%arg' => $arg,
            )));
        }
    }
    if (isset($args['%'])) {
        form_error($form['path'], t('Invalid arg <em>%</em>. All arguments must be named with keywords.'));
    }
    $form_state['arguments'] = $args;
}