specify context on hook_menu drupal

Question

I would like to check if particular node instance exists then load that node. if the instance does not exist, then display message. So far:

function MODULE_menu() {
    $items['ds-some'] = array(
        'title' => 'Some',
        'page callback' => 'some_display',
        'access arguments' => array('access content'),
        'type' => MENU_NORMAL_ITEM,
        'file' => 'inc/some.pages.inc',
    );

    return $items;
}

function MODULE_theme(){
    return array(
        'render-some' => array(
            'template' => 'page--some',
            'variables' => array(
                'node' => NULL
            ),
            'path' => path_to_theme().'/templates',
        ),
    );
}

in file inc/some.pages.inc

    function some_display(){
            $build = array();

            $nid_some = db_select('node', 'n')
                ->fields('n', array('nid'))
                ->fields('n', array('type'))
                ->condition('n.type', 'SOME_TYPE')
                ->execute()
                ->fetchCol();

            //load first instance 
            $someNode = node_load($nid_some[0]);

            if (!empty($shopNode)) {

//Attempt 1
    //            $build['ds-some'] = array(
    //                '#theme' => 'node',
    //                '#node' => $someNode,
    //                '#view_mode' => 'full',
    //            );

//Attempt 2    
    //            $build['ds-some'] = node_view($someNode, 'full');

                $build['ds-some'] = array(
                    '#theme' => 'render-some',
                    '#node' => $someNode,
                );
            }
            else {
                drupal_set_message(t('It appears there is no instance present');
            }
            return $build;
    }

The first two attempts ended with the title of the Node instance but Drupal is no rendering the whole page(template file, views, etc). In my last attempt, i use custom theme function that it works, however. It is not rendering the context for the node type specified. How to specify context when working with hook_menu(), so that the context configured will load blocks and views? Thank you for any help.

Answer 1

I don't know how the Context module handles Entity types, but it loads entity type definitions using the entity ID (from the URL). In your case, you are creating a menu item without any arguments, just specifying business logic in the callback, and your menu item path is not a node path. That's why the Context module can't find any entity type definition. In this case you can specify additional context reactions by path (by your custom path) and display blocks.

You don't need to specify double fields method; you can write much simpler code.

$nid_some = db_select('node', 'n')
  ->fields('n', array('nid', 'type'))
  ->condition('n.type', 'SOME_TYPE')
  ->execute()
  ->fetchAll();

If you need to fetch only one row from the database, you can use the following code.

$nid_some = db_select('node', 'n')
  ->fields('n', array('nid', 'type'))
  ->condition('n.type', 'SOME_TYPE')
  ->range(0,1)
  ->orderBy('nid', 'DESC') // Additional sorting
  ->execute()
  ->fetchAll();

Answer 2

I will answer to the part that is not about the Context module, since the hook_theme() implementation is not correct.

render-some is not a correct theme function identifier, since that needs to be an identifier PHP is able to use as function name or as part of a function name. Even when the theme implementation is done in a template file, and not in a function, Drupal will always use the identifier to find some functions required for the theme implementation, such as:

• template_preprocess_render-some(), the preprocess function implemented from your module
• hook_preprocess_render-some(), the preprocess function implemented by other modules
• template_process_render-some(), the process function implemented from your module
• hook_process_render-some(), the process function implemented by other modules

Even if you don't plan to use preprocess or process functions for that template file, using render-some as theme identified doesn't allow other modules to implement those preprocess or process functions, since the function name Drupal would look for isn't a function name allowed from PHP.

Answer 3

To answer how to activate context, here is snippet:

$context = context_load('NAME_OF_CONTEXT');
context_set('context', $context->name, $context);

For complete info on how to render the page programmatically, activate context, etc in this post http://margotskapacs.com/2014/02/rendering-page-programmatically-to-create-permanent-urls-like-shop-gallery/