[Drupal 7] Practice Assignment

diff --git a/docroot/sites/all/modules/custom/sample1/sample1.info b/docroot/sites/all/modules/custom/sample1/sample1.info
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+name = Sample Wordpress Validator - 2nd pass
+description = A module that validates Wordpress header data.
+core = 7.x
+package = Sample
+version = 0.1-dev
+dependencies[] = entityreference
diff --git a/docroot/sites/all/modules/custom/sample1/sample1.module b/docroot/sites/all/modules/custom/sample1/sample1.module
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+<?php
+/**
+ * Implementation of hook_menu()
+ */
+function sample1_menu() {
+  $items = array();
+  $items['node/%node/validate'] = array(
+    'title' => 'Validate',
+    'description' => 'Validate this site',
+    'page callback' => 'sample1_validate_wp',
+    'page arguments' => array(1),
+    'access callback' => 'sample1_access_callback',
+    'access arguments' => array(1),
+    'type' => MENU_LOCAL_TASK,
+    'weight' => 10,
+  );
+    $items['node/%node/history'] = array(
+    'title' => 'History',
+    'description' => 'History Report of past validation checks',
+    'page callback' => 'sample1_history',
+    'access callback' => 'sample1_access_callback',
+    'access arguments' => array(1),
+    'type' => MENU_LOCAL_TASK,
+    'weight' => 11,
+  );
+  return $items;
+}
+
+/**
+ * Check the corresponding WP site and store results in a new 'Results' node
+ */
+function sample1_validate_wp($ref_node) {
+
+  global $user;
+
+  $values = array(
+    'type' => 'result',
+    'uid' => $user->uid,
+    'status' => 1,
+    'comment' => 0,
+    'promote' => 0,
+  );
+
+  // Declare the new node
+  $entity = entity_create('node', $values);
+
+  // Wrap it
+  $ewrapper = entity_metadata_wrapper('node', $entity);
+
+  //Set the title
+  $ewrapper->title->set($ref_node->title . " - " . date("m/d/Y H:i",time()));
+
+  // Set the 'field_site' value
+  $ewrapper->field_site->set($ref_node);
+
+  // Wrap the reference node
+  $ref_wrapper = entity_metadata_wrapper('node',$ref_node);
+
+  // Run the WP version check
+  $wp_meta_array = get_meta_tags($ref_wrapper->field_url->url->value());
+  $wp_result = empty($wp_meta_array['generator']) ? 'Version not found' : $wp_meta_array['generator'];
+  $ewrapper->field_result->set($wp_result);
+
+  // Save the new node
+  $ewrapper->save();
+
+  // Point the Latest Result field to the new result node
+  $ref_wrapper->field_latest_result->set($ewrapper->getIdentifier());
+
+  // Set the 'active' flag to Yes or No on the reference node
+  $ref_wrapper->field_active->set(empty($wp_meta_array['generator']) ? false : true);
+
+  // Save the updated reference node
+  $ref_wrapper->save();
+
+  // Goto the new node and display a status message
+  drupal_set_message(t("Validation complete."));
+  return drupal_goto("/node/" . $ewrapper->getIdentifier());
+}
+
+/**
+ * Implementation of hook_form_alter()
+ */
+function sample1_form_alter(&$form, &$form_state, $form_id) {
+  switch($form_id){
+    // Hide certain fields when editing Site nodes
+    case 'wordpress_site_node_form':
+      unset($form['field_active']);
+      unset($form['field_latest_result']);
+  }
+}
+
+function sample1_access_callback($node) {
+  return $node->type == 'wordpress_site' && user_access('access content');
+}
+
+/**
+ * Implementation of hook_node_view()
+ */
+function sample1_node_view($node, $view_mode, $langcode) {
+  if ($node->type == 'wordpress_site' && $view_mode == 'teaser') {
+    $rslt_nid = isset($node->field_latest_result[$node->language][0]['target_id']) ? $node->field_latest_result[$node->language][0]['target_id'] : null;
+
+    // Display extra information if a result reference nid is listed
+    if ($rslt_nid != null) {
+      // Set up a wrapper
+      $rslt_wrapper = entity_metadata_wrapper('node',$rslt_nid);
+
+      // Display the 'wordpress version' value based on the result node's creation date
+      $node->content['result'] = array(
+        '#markup' => "<strong>Last Result:</strong> " . $rslt_wrapper->field_result->value() . "<br />",
+        '#weight' => 11,
+      );
+
+      // Display the 'last updated' value based on the result node's creation date
+      $node->content['last_updated'] = array(
+        '#markup' => "<strong>Last Checked:</strong> " . format_date($rslt_wrapper->created->value(), 'long') . "<br />",
+        '#weight' => 12,
+      );
+    }
+  }
+}
+
+/**
+ * Render a blank page which will be used to expose the history views block
+ */
+function sample1_history() {
+  return "";
+}