Drupal 7 - Programmatically create a taxonomy and attach a field to it, then create a content type and attach that taxonomy to it.

drupal_taxonomy_content_type.php

<?php
// Machine name for our custom node
define('NODE_NAME', 'the_node_machine_name');
// Machine name for our custom taxonomy
define('TAXONOMY_NAME', 'the_taxonomy_machine_name');

function module_install() {
  _create_taxonomy();
  _create_content_type();
}

/**
 * Create a taxonomy and attach a field to it.
 */
function _create_taxonomy() {
  $t = get_t();
  
  $term = new stdClass();
  $term->name = $t('Name');
  $term->machine_name = TAXONOMY_NAME;
  $term->description = $t('Description');
  $term->heirarchy = 1;
  $term->module = 'module_name';
  $term->weight = 1;
  taxonomy_vocabulary_save($term);

 // Create a field
 $field = array(
    'field_name' => 'field_tax_fieldname',
    'type' => 'text',
    'label' => $t('Label')
  );
  field_create_field($field);

  // Attach the field to our taxonomy entity
  $instance = array(
      'field_name' => 'field_tax_fieldname',
      'entity_type' => 'taxonomy_term',
      'bundle' => TAXONOMY_NAME,
      'label' => $t('Label'),
      'description' => $t('Description'),
      'required' => true,
      'widget' => array(
        'type' => 'text_textfield',
        'weight' => 3
      )
  );
  field_create_instance($instance);
  
  // Done
}

/**
 * Create a content type and attach our created taxonomy to it.
 */
function _create_content_type() {
  $t = get_t();

  $node = array(
    'type' => NODE_NAME,
    'name' => $t('Name'),
    'base' => 'node_content',
    'description' => $t('Description'),
    'title_label' => $t('Title'),
    'custom' => TRUE
  );
  $content_type = node_type_set_defaults($node);
  node_add_body_field($content_type, $t('Article'));
  node_type_save($content_type);

  // Create a taxonomy field and use the taxonomy entity we created earlier
  $field = array(
    'field_name' => 'field_tax_name',
    'type' => 'taxonomy_term_reference',
    'label' => $t('Label'),
    'settings' => array(
      'allowed_values' => array(
        array(
          'vocabulary' => TAXONOMY_NAME,
          'parent' => 0
        )
      )
    )
  );
  field_create_field($field);

  // Add the field to the content type as a HTML select box.
  $instance = array(
    'field_name' => 'field_tax_name',
    'entity_type' => 'node',
    'bundle' => NODE_NAME,
    'label' => $t('Label'),
    'description' => '',
    'required' => TRUE,
    'widget' => array(
      'type' => 'options_select',
      'weight' => -10,
    )
  );
  field_create_instance($instance);
  
  // Done
}

There aren't enough smileys in the Github editor to convey how happy I am right now. Thanks!

Ditto'ing @Sleavely 's comment!

Agreed!

So helpful! Thanks so much for posting this!

Thanks!!

Thanks!

Thank you very much.. this helps me a lot -- really needed to do this through code rather than the user admin screen

Thank you!

Thank you very much

Thank You!!!

Any example to add a text field or a list field? Please