Provide a Views field handler for area details.

farm_area.info

@@ -38,4 +38,5 @@ features[taxonomy][] = farm_areas
 features[variable][] = pathauto_taxonomy_term_farm_areas_pattern
 features[views_view][] = farm_area_data
 features[views_view][] = farm_areas
+files[] = views/handlers/farm_area_handler_field_details.inc
 files[] = views/handlers/farm_area_handler_field_links.inc

farm_area.views.inc

@@ -10,6 +10,15 @@
  */
 function farm_area_views_data_alter(&$data) {
 
+  // Add a field for farm area details.
+  $data['taxonomy_term_data']['farm_area_details'] = array(
+    'field' => array(
+      'title' => t('Area Details'),
+      'help' => t('Details that are relevant to farm areas.'),
+      'handler' => 'farm_area_handler_field_details',
+    ),
+  );
+
   // Add a field for farm area links.
   $data['taxonomy_term_data']['farm_area_links'] = array(
     'field' => array(

views/handlers/farm_area_handler_field_details.inc

@@ -0,0 +1,53 @@
+<?php
+
+/**
+ * @file
+ * Field handler to present farm area links.
+ */
+
+/**
+ * Field handler to present farm area details.
+ */
+class farm_area_handler_field_details extends views_handler_field {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function construct() {
+
+    // Inherit the parent's construction.
+    parent::construct();
+
+    // Add the term id as an additional field to load to ensure that it is
+    // available in this handler.
+    $this->additional_fields['tid'] = 'tid';
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function query() {
+
+    // Ensure the main table for this field is included.
+    $this->ensure_my_table();
+
+    // Include additional fields (like term id defined in $this->construct())
+    $this->add_additional_fields();
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function render($values) {
+
+    // Load the term id value.
+    $aid = $this->get_value($values, 'tid');
+
+    // Generate the area details.
+    $area_details = farm_area_get_details($aid);
+
+    // Return the details.
+    return $area_details;
+  }
+
+}