<?php

/**
 *
 * Implements hook_entity_load().
 */
function tripal_entities_entity_presave($entity, $type) {

}
/**
 *
 * @param $entity
 * @param $type
 */
function tripal_entities_entity_postsave($entity, $type) {
  // Set the title for this entity using the chado data.
  $title = chado_get_entity_title($entity);
  $ec = new TripalEntityController($entity->type);
  $ec->setTitle($entity, $title);
}
/**
 *
 * Implements hook_entity_load().
 */
function tripal_entities_entity_load($entities, $type) {

}

/**
 *
 * Implements hook_entity_insert().
 */
function tripal_entities_entity_insert($entity, $type) {

}

/**
 *
 * Implements hook_entity_update().
 */
function tripal_entities_entity_update($entity, $type) {

}

/**
 *
 * Implements hook_entity_delete().
 */
function tripal_entities_entity_delete($entity, $type) {
  $record = db_select('chado_entity', 'ce')
   ->fields('ce', array('chado_entity_id', 'data_table', 'record_id'))
   ->condition('entity_id', $entity->id)
   ->execute()
   ->fetchObject();

  if ($record && property_exists($record, 'chado_entity_id')) {
    // Delete the corresponding record in Chado
    $table = $record->data_table;
    $record_id = $record->record_id;
    chado_delete_record($table, array($table . '_id' => $record_id));

    //Delete the record in the public.chado_entity table
    $sql = "DELETE FROM {chado_entity} WHERE chado_entity_id = :id";
    db_query($sql, array(':id' => $record->chado_entity_id));
  }
}

/**
 *
 * @param unknown $display
 * @param unknown $context
 */
function tripal_entities_field_widget_form_alter(&$element, &$form_state, $context) {
  // The timelastmodified field exists in many Chado tables.  We want
  // the form element to update to the most recent time rather than the time
  // in the database.
  if (array_key_exists('#field_name', $element)) {
    $field_name = $element['#field_name'];
    $matches = array();
    if (preg_match('/(.+?)__(.+?)$/', $field_name, $matches)) {
      $tablename = $matches[1];
      $colname = $matches[2];
      $schema = chado_get_schema($tablename);
      if ($colname == 'timelastmodified' and
        $schema['fields'][$colname]['type'] == 'datetime') {
        $element['#default_value']['value'] = format_date(time(), 'custom', "Y-m-d H:i:s");
        $element['#date_items']['value'] = $element['#default_value']['value'];
        $form_state['rebuild'] = TRUE;
      }
    }
  }
}
/**
 * Implements hook_chado_field_alter().
 *
 */
function tripal_entities_chado_field_alter(&$field) {

  // Here we provide new field types and widgets for FK fields
  // and fields that need special attention.
  if ($field['chado_column'] =='organism_id') {
    $field['field_type'] = 'organism_id';
    $field['widget_type'] = 'tripal_entities_organism_select_widget';
    $field['label'] = 'Organism';
    $field['description'] = 'Select an organism.';
  }
  else if ($field['chado_column'] =='dbxref_id') {
    $field['field_type'] = 'dbxref_id';
    $field['widget_type'] = 'tripal_entities_primary_dbxref_widget';
    $field['label'] = 'Primary Cross Reference';;
    $field['description'] = 'This record can be cross-referenced with a record in another online database. This field is intended for the most prominent reference.  At a minimum, the database and accession must be provided.';
  }
  else if ($field['chado_table'] == 'feature' and
    $field['chado_column'] == 'md5checksum') {
    $field['field_type'] = 'md5checksum';
    $field['widget_type'] = 'tripal_entities_md5checksum_checkbox_widget';
    $field['label'] = 'MD5 Checksum';
    $field['description'] = 'Generating MD5 checksum for the sequence.';
  }
  else if ($field['chado_table'] == 'feature' and
    $field['chado_column'] == 'seqlen') {
  }
}