<?php

class data__sequence_length extends TripalField {


  // --------------------------------------------------------------------------
  //                     EDITABLE STATIC CONSTANTS
  //
  // The following constants SHOULD be set for each descendent class.  They are
  // used by the static functions to provide information to Drupal about
  // the field and it's default widget and formatter.
  // --------------------------------------------------------------------------

  // The term that this field maps to.  The format for the term should be:
  // [vocab]:[accession] where [vocab] is the short name of the vocabulary
  // and [acession] is the unique accession number for the term.  This term
  // must already exist in the vocabulary storage backend. This
  // value should never be changed once fields exist for this type.
  public static $term = 'data:1249';

  // The default lable for this field.
  public static $label = 'Sequence length';

  // The default description for this field.
  public static $description = 'A field for calculating the length of a sequence.';

  // Provide a list of global settings. These can be accessed witihn the
  // globalSettingsForm.  When the globalSettingsForm is submitted then
  // Drupal will automatically change these settings for all fields.
  public static $settings = array(
    'chado_table' => '',
    'chado_column' => '',
    'base_table' => '',
  );

  // Provide a list of instance specific settings. These can be access within
  // the instanceSettingsForm.  When the instanceSettingsForm is submitted
  // then Drupal with automatically change these settings for the instnace.
  // It is recommended to put settings at the instance level whenever possible.
  public static $instance_settings  = array();

  // Set this to the name of the storage backend that by default will support
  // this field.
  public static $storage = 'tripal_no_storage';

  // The default widget for this field.
  public static $default_widget = 'data__sequence_length_widget';

  // The default formatter for this field.
  public static $default_formatter = 'data__sequence_length_formatter';

  // --------------------------------------------------------------------------
  //              PROTECTED CLASS MEMBERS -- DO NOT OVERRIDE
  // --------------------------------------------------------------------------
  // An array containing details about the field. The format of this array
  // is the same as that returned by field_info_fields()
  protected $field;
  // An array containing details about an instance of the field. A field does
  // not have to have an instance.  But if dealing with an instance (such as
  // when using the widgetForm, formatterSettingsForm, etc.) it should be set.
  protected $instance;

  /**
   * 
   * @see TripalField::load()
   */
  public function load($entity, $details = array()) {

  }
}